CN101262810B - Receiver apparatus - Google Patents

Receiver apparatus Download PDF

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Publication number
CN101262810B
CN101262810B CN2006800331968A CN200680033196A CN101262810B CN 101262810 B CN101262810 B CN 101262810B CN 2006800331968 A CN2006800331968 A CN 2006800331968A CN 200680033196 A CN200680033196 A CN 200680033196A CN 101262810 B CN101262810 B CN 101262810B
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China
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mentioned
reception antenna
receiving system
antenna
receiving
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CN2006800331968A
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CN101262810A (en
Inventor
穗满政敏
永濑绫子
木许诚一郎
中土一孝
藤田学
松井亮
重盛敏明
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Olympus Corp
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Olympus Corp
Olympus Medical Systems Corp
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Priority claimed from JP2005306116A external-priority patent/JP4827486B2/en
Priority claimed from JP2005311663A external-priority patent/JP4751696B2/en
Application filed by Olympus Corp, Olympus Medical Systems Corp filed Critical Olympus Corp
Priority claimed from PCT/JP2006/317007 external-priority patent/WO2007029570A1/en
Publication of CN101262810A publication Critical patent/CN101262810A/en
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Abstract

To detect a disconnection of a feeding line in a short time and with reliability by use of a simple structure. A receiver apparatus (2) uses a switch (20) for selectively switching coaxial cables (9a-9d) connected to reception antennas (8a-8d) to receive, via a selected coaxial cable and its associated reception antenna, image information transmitted from a capsule endoscope (3). The receiver apparatus (2) has a switch (22), a disconnection detecting circuit (23), and a control part (26). The switch (22) branches the coaxial cables (9a-9d) near the switch (20) and selectively switches the branched coaxial cables. The disconnection detecting circuit (23) applies, via a constant current source (203), a DC voltage to the coaxial cable selected by the switch (22) to determine whether the coaxial cable has been disconnected, depending on whether the voltage of the coaxial cable has been grounded. The control part (26) controls the selective switching of the switch (22) and also controls the disconnection detection of the disconnection detecting circuit (23) in synchronism with the selective switching control.

Description

Receiving system
Technical field
The present invention relates to a kind of receiving system, this receiving system utilization selects switching part to select to switch many feed lines that are connected on a plurality of reception antennas, and receives the transmission information that sends from the dispensing device that moves by feed line and the reception antenna that this selection is switched.
Background technology
In recent years, the deglutition type endoscope that has proposed to be provided with camera function and radio communication function in the field of endoscope is a capsule type endoscope, has developed a kind of in-examiner information acquisition system that obtains the tested intravital view data of being taken by this capsule type endoscope.In this in-examiner information acquisition system, the following performance function of capsule type endoscope: in order to observe (inspection) after this capsule type endoscope of from the mouth of patient's etc. subject, swallowing, during till discharging naturally from this subject, this capsule type endoscope moves along with its vermicular movement in the inside of tested intravital internal organs such as for example stomach or small intestinal etc., and is in this subject of interval shooting with 0.5 second for example with predetermined distance.
Capsule type endoscope in subject, move during, take the view data that obtains by this capsule type endoscope and be sent to the outside successively, and be received device by the reception antenna of decentralized configuration and receive in the subject outside by radio communication.Receiving system will be demodulated into picture signal by the wireless signal that above-mentioned reception antenna receives, thereby and the Flame Image Process that the picture signal that obtains is stipulated generate view data.Afterwards, the receiving system view data that will generate like this (promptly taking the image information that obtains by capsule type endoscope) is saved in the storage medium successively.By subject being carried possess the receiving system of this radio communication function and memory function, subject after swallowable capsule type endoscope till discharging capsule type endoscope during, can freely take action.The view data that user such as doctor or nurse will be kept in the storage medium of above-mentioned receiving system is taken into work station, and shows that on the display of this work station tested intravital image carries out the diagnosis (for example with reference to patent documentation 1) of subject.
In addition, this receiving system generally will receive a plurality of reception antenna decentralized configuration of the wireless signal that sends from capsule type endoscope external, a less reception antenna of the reception mistake of wireless signal be selected to switch receive.
Patent documentation 1: TOHKEMY 2003-19111 communique
Summary of the invention
The problem that invention will solve
In addition, doctor or nurse need observe the tested intravital image of being taken by capsule type endoscope as much as possible in order accurately and at length subject to be diagnosed.Thereby, require above-mentioned receiving system to receive reliably, and obtain the tested intravital view data that is included in this wireless signal as much as possible from the wireless signal that is imported into tested intravital capsule type endoscope.Therefore, under carrying out capsule type endoscope imported the situation that the capsule type endoscope that obtains tested intravital image in the subject checks, whether the precheck receiving system is in the normal condition of the view data that can obtain capsule type endoscope.
Specifically, a plurality of reception antennas of above-mentioned receiving system are connected on the receiving system main body by coaxial cable respectively by on the each several part (a plurality of positions on the body surface) of decentralized configuration outside subject.When carrying out the capsule type endoscope inspection at every turn, above-mentioned a plurality of reception antennas are connected on the receiving system repeatedly by coaxial cable, and above-mentioned a plurality of reception antennas are installed on the subject repeatedly.Therefore, when the enforcement number of times of capsule type endoscope inspection increased, above-mentioned coaxial cable became and breaks easily.
Therefore, implementing before capsule type endoscope checks, carrying out the continuity test of coaxial cable that above-mentioned reception antenna is connected with receiving system etc.In this case, receiving system in the past carried out the burn out detection of above-mentioned a plurality of reception antennas before importing capsule type endoscope in the subject, thereby confirmed whether each reception antenna normally moves.
The spurious signal generator of the wireless signal that capsule type endoscope sends is sent in use as spurious signal, make this spurious signal generator confirm the accepting state of receiving system near each reception antenna, carries out the burn out detection of this reception antenna thus.Therefore, there are the following problems: the expensive operating time in the burn out detection of reception antenna in capsule type endoscope is checked.
The present invention In view of the foregoing finishes, and its purpose is to provide a kind of receiving system that can detect the broken string of feed line with simple structure at short notice and reliably.
The scheme that is used to deal with problems
In order to achieve the above object, receiving system utilization involved in the present invention selects switching part that a plurality of feed lines that are connected on a plurality of reception antennas are selected to switch, receive the transmission information that sends from the dispensing device that moves by feed line after this selection switching and reception antenna, this receiving system is characterised in that to possess: detect with selecting switching part, it makes above-mentioned a plurality of feed line branch respectively near above-mentioned selection switching part, and each feed line after this branch is selected to switch; Grounded parts, it is arranged between above-mentioned feed line and the above-mentioned reception antenna, makes above-mentioned feed line ground connection; The burn out detection parts, whether it applies DC voltage to utilizing above-mentioned detection with the feed line that the selection switching part has carried out selecting to switch by constant-current source, be that ground voltage detects above-mentioned feed line and has or not broken string according to the voltage of feed line; And control assembly, it carries out above-mentioned detection synchronously makes above-mentioned burn out detection parts carry out burn out detection with the selection switching controls of selecting switching part and with this selection switching controls.
In addition, receiving system involved in the present invention is characterised in that, in foregoing invention, above-mentioned reception antenna is opening reception antenna, connect above-mentioned feed line and above-mentioned reception antenna by balanced-to-unbalanced transformer (Transformer balun), and make the feed line side joint ground of this balanced-to-unbalanced transformer.
In addition, receiving system involved in the present invention is characterised in that in foregoing invention, above-mentioned reception antenna is opening reception antenna, connects above-mentioned feed line and above-mentioned reception antenna by short-circuit component, an end ground connection of this short-circuit component.
In addition, receiving system involved in the present invention is characterised in that in foregoing invention, above-mentioned reception antenna is a ring Shape antenna, and the end that above-mentioned feed line is connected with above-mentioned reception antenna is grounded.
In addition, receiving system involved in the present invention is characterised in that in foregoing invention, above-mentioned feed line is a coaxial cable, makes external conductor ground connection.
In addition, receiving system involved in the present invention is characterised in that in foregoing invention, above-mentioned control assembly is exported burn out detection result's control.
The effect of invention
According to receiving system involved in the present invention, to be connected to a plurality of feed lines on a plurality of reception antennas select the selection switching part that switches near, be provided with and make above-mentioned a plurality of feed line branch respectively, and select the detection of switching with selecting switching part to each feed line after this branch, and the grounded parts that makes above-mentioned feed line ground connection is set between above-mentioned feed line and above-mentioned reception antenna, the burn out detection parts also are set, control assembly carries out above-mentioned detection and synchronously carries out the burn out detection of above-mentioned burn out detection parts with the selection switching controls of selecting switching part and with this selection switching controls, therefore play the effect that can detect the broken string of feed line at short notice and reliably with simple structure, wherein, whether described burn out detection parts apply DC voltage to utilizing above-mentioned detection with the feed line that the selection switching part has carried out selecting to switch, and be that ground voltage detects above-mentioned feed line and has or not broken string according to the voltage of feed line.
Description of drawings
Fig. 1 is the block diagram of the summary structure of the expression capsule-type endoscope system that used the related receiving system of embodiments of the present invention 1.
Fig. 2 is the block diagram of the summary structure of the related receiving system of expression embodiments of the present invention 1.
Fig. 3 is the related coaxial cable of expression embodiments of the present invention 1 and the figure of the annexation between the reception antenna.
Fig. 4 be illustrated under the situation that does not have broken string in the coaxial cable from the break detection circuit to the reception antenna between the block diagram of summary structure.
Fig. 5 be illustrated in the coaxial cable under the situation that has broken string from the break detection circuit to the reception antenna between the block diagram of summary structure.
Fig. 6 is the related coaxial cable of expression embodiments of the present invention 2 and the figure of the annexation between the reception antenna.
Fig. 7 is the related coaxial cable of expression embodiments of the present invention 3 and the figure of the annexation between the reception antenna.
Fig. 8 is the integrally-built sketch map that expression embodiments of the present invention 4 related wireless intra-subject informations obtain system.
Fig. 9 is the block diagram of the structure of the receiving system shown in the presentation graphs 8.
Figure 10 is the block diagram of the structure of the display device shown in the presentation graphs 8.
Figure 11 is expression by the figure of the time variation of the received electric field strength of the wireless signal that receives of antenna for receiving that not have broken string.
Figure 12 figure that to be expression change by the time at the received electric field strength that receives the wireless signal that antenna for receiving that broken string has taken place receives midway.
Figure 13 is that expression has produced because the figure of the time variation of the received electric field strength under the situation of the bad connection that broken string causes.
Figure 14 is the sketch map that schematically shows a structure example of the related in-examiner information acquisition system of embodiments of the present invention 9.
Figure 15 is the block diagram that schematically shows each structure example of the receiving system that connects by cable and monitoring arrangement.
Figure 16 schematically shows to be used for the block diagram of a structure example of wire disconnection inspecting device that 9 related broken wire detection methods according to the embodiment of the present invention carry out the continuity test of reception antenna.
Figure 17 is the flow chart of an example of the broken wire detection method of the related reception antenna of expression embodiments of the present invention 9.
Figure 18 is the method for initialization process is carried out in explanation to the receiving system of continuity test object a sketch map.
Figure 19 is that explanation checks that reception antenna has or not the sketch map of the method for broken string.
Figure 20 is the sketch map of the variation of the related broken wire detection method of explanation embodiments of the present invention 9.
Description of reference numerals
1: subject; 2,102,303: receiving system; 2a, 102a: radio-cell; 2b, 102b: receive main unit; 3,103,302: capsule type endoscope; 4,104: display device; 5,105,307: portable recording medium; 8a~8d, 81a, 82a, 304a~304f, 390: reception antenna; 9a~9d: coaxial cable; 10: balanced-to-unbalanced transformer; 10A: short-circuit component; 20,22: change-over switch; 21,111,332,391: receiving circuit; 23: break detection circuit; 24,112,334,392: signal processing circuit; 25,113:A/D converter section; 26,318,339,398: control part; 27,114,122,337,397: display part; 28,115,124,335: storage part; 29,116,319,340,399: electric power provides portion; 90a, 91a, 92a: heart yearn; 90A, 91A, 92A: external conductor; 121,311,336,396: input part; 123: efferent; 124a: statistical data; 125: external communication interface; 200: dc source; 201: switch; 202: comparator; 203: constant-current source; 260: switch control portion; 304: antenna element; 305: apparatus main body; 306: work station; 308,321: cable; 309: monitoring arrangement; 310: wire disconnection inspecting device; 312: image pickup part; 313: image processing part; 314: the mode image generating unit; 315,395: on-off circuit; 316: transtation mission circuit; 317: transmitting antenna; 322: carriage; 330: adapter; 331: the antenna switching part; 333: control switching circuit; 338,394: communication I/F; 339a: confirming operation portion; 393: connect test section; A1~An: antenna for receiving; C1, C2: control part; C1a: switch control portion; C2a: burn out detection handling part; P: test pattern.
The specific embodiment
Describe the preferred forms of receiving system involved in the present invention with reference to the accompanying drawings in detail.
(embodiment 1)
Fig. 1 is the block diagram of the summary structure of the expression capsule-type endoscope system that used the related receiving system 2 of embodiments of the present invention 1.As shown in Figure 1, in the time of in capsule type endoscope 3 is imported into subject 1, move in subject 1, and take subject inside, the picture signal that this shooting is obtained sends to the outside of subject 1 as wireless signal.
Receiving system 2 has: a plurality of reception antenna 8a~8d, and decentralized configuration is external subject 1; Coaxial cable 9a~9d is connected on reception antenna 8a~8d; Radio-cell 2a, it is connected with coaxial cable 9a~9d; And receiving main unit 2b, it is connected on the radio-cell 2a.
Receive the picture signal that sends from capsule type endoscope 3 by a plurality of reception antenna 8a~8d, this picture signal is taken into by radio-cell 2a and receives among the main unit 2b.Receive main unit 2b the strongest reception antenna of selective reception electric field intensity and receiving from a plurality of reception antenna 8a~8d, receive the picture signal that receives by this selection successively, a series of images of storage till capsule type endoscope 3 is discharged from subject 1.
After subject 1 is discharged capsule type endoscope 3, take off portable recording medium 5 and be installed to the display device 4 from receiving main unit 2b.Display device 4 is read a series of images that is stored in the portable recording medium 5 and is carried out display process etc.
In addition, the capsule-type endoscope system that possesses as shown in Figure 1 capsule type endoscope, receiving system and display device is to be received the captured tested intravital image of (obtaining) capsule type endoscope by reception antenna and shown by display device by receiving system to be sometimes referred to as the system of the tested intravital image obtained wireless intra-subject information and to obtain system or be called in-examiner information acquisition system simply.
Fig. 2 is the block diagram of the structure of expression receiving system 2.As shown in Figure 2, radio-cell 2a has: change-over switch 20,22 connects reception antenna 8a~8d respectively; Receiving circuit 21, it receives the received signal from change-over switch 20; And break detection circuit 23, it is connected on the change-over switch 22.
Change-over switch 20 is when being transfused to switching signal S3, from coaxial cable 9a~9d, select an indicated coaxial cable of this switching signal S3, receiving circuit 21 is by receiving picture signal by change-over switch 20 selected coaxial cables, and the receiving intensity signal S2 that will comprise the received electric field strength of the baseband signal S1 of this picture signal and presentation video signal outputs to and receives main unit 2b side.
On the other hand, change-over switch 22 is when the switching signal S4 that is transfused to the switching of the same indication coaxial cable of switching signal S3, from coaxial cable 9a~9d, select the indicated coaxial cable of this switching signal S4, and the coaxial cable that will select is connected on the break detection circuit 23.Break detection circuit 23 is being transfused to indication when detecting the control signal S5 of broken string, carries out the continuity test of the coaxial cable of selected connection, the result of this continuity test is outputed to as detection signal S6 receive main unit 2b side.
The control part 26, display part 27, storage part 28, the portable recording medium 5 that can mount and dismount and the electric power that receive main unit 2b and have signal processing circuit 24, A/D converter section 25, possess switch control portion 260 provide portion 29.Electric power provides 29 pairs of above-mentioned each several parts of portion that electric power is provided.
Signal processing circuit 24 generates picture signal and outputs to control part 26 according to the baseband signal S1 from receiving circuit 21 inputs.25 couples of receiving intensity signal S2 from receiving circuit 21 inputs of A/D converter section carry out the A/D conversion, and output to control part 26 as the digital signal of representing received electric field strength.
Control part 26 will be from the picture signal record of signal processing circuit 24 input to portable recording medium 5, and carries out pictorial display is outputed to the processing controls of display part 27 as required.In addition, switch control portion 260 is according to the digital signal of the expression received electric field strength of importing from A/D converter section 25, the reception antenna of selective reception electric field intensity maximum outputs to change-over switch 20 with indication to the switching signal S3 that the coaxial cable that connects this reception antenna switches.In addition, switch control portion 260 will send to change-over switch 22 to the switching signal S4 that the switching of the coaxial cable that is used for continuity test is indicated, to indicate the control signal S5 of continuity test to output to break detection circuit 23 accordingly with this switching signal S4, thereby obtain detection signal S6.
Fig. 3 is the block diagram of the concrete annexation of expression reception antenna 8a and coaxial cable 9a.As shown in Figure 3, reception antenna 8a is opening antenna, and coaxial cable 9a has as the heart yearn 90a of inner conductor and external conductor 90A.
Utilize balanced-to-unbalanced transformer 10 to connect reception antenna 8a and coaxial cable 9a.Form coil respectively in the coaxial cable 9a side of reception antenna 8a and the reception antenna 8a side of coaxial cable 9a, reception antenna 8a and coaxial cable 9a are carried out electromagnetic coupled, reduce because as the reception antenna 8a of balanced circuit and the leakage current that is produced that is connected as the coaxial cable 9a of unbalanced line.The coil of coaxial cable 9a side is formed on the head portion of heart yearn 90a, with external conductor 90A ground connection.
Fig. 4 is that expression is the block diagram of the structure at center with break detection circuit 23.As shown in Figure 4, this break detection circuit 23 has comparator 202, and this comparator 202 compares the voltage and the threshold voltage Vref of input, and its result is exported as detection signal S6.An input of comparator 202 is transfused to threshold voltage Vref, is connected with heart yearn 90a on another input.On this heart yearn 90a, be connected with by switch 201 and constant-current source 203 output dc voltage V INDc source 200, by control signal S5 switch 201 is opened and closed.In addition, voltage V INMore than threshold voltage Vref.In addition, also can use resistance to replace constant-current source 203.
In the heart yearn 90a of coaxial cable 9a, do not have to come heart yearn 90a is applied voltage V by " closure " of switch 201 under the situation of broken string IN, because by balanced-to-unbalanced transformer 10 and ground connection, so the voltage between heart yearn 90a and the ground connection is ground voltage, the voltage that is input to another input of comparator 202 is below the threshold voltage Vref.Its result, the voltage that comparator 202 output expressions are imported from another input is the detection signal S6 below the threshold voltage Vref, control part 26 is judged as and is not broken string.
On the other hand, as shown in Figure 5, exist in the heart yearn 90a of coaxial cable 9a under the situation of broken string, " closure " by switch 201 applies voltage V via 203 couples of heart yearn 90a of constant-current source IN, there is not direct ground connection, therefore another input to comparator 202 directly applies this voltage V INComparator 202 output expressions are from voltage (the voltage V of another input input IN) be the above detection signal S6 of threshold voltage Vref, it is broken string that control part 26 is judged as.
Control part 26 output switching signal S4 select next coaxial cable 9b, and use break detection circuit 23 carries out the continuity test to the next coaxial cable 9b of this selection, similarly carries out the continuity test to all coaxial cable 9a~9d.Thus, control part 26 can determine immediately that coaxial cable 9a~9d has or not the coaxial cable of broken string and broken string.
Control part 26 under the situation of the coaxial cable that detects broken string, also can be in advance to coaxial cable additional numbers etc. and on display part 27, show the numbering of the coaxial cable of broken string.In addition, also the meaning that does not have broken string can shown on display part 27 under the situation that does not detect broken string.
In addition, under the situation of switch control portion 260 in being in the receiving course of picture signal of above-mentioned control part 26, also switching signal S3, S4 can be made as identical signal and the coaxial cable that switches is carried out burn out detection, can also make switching signal S3, S4 indicate the coaxial cable difference of switching, the coaxial cable that does not receive picture signal is carried out burn out detection.In addition, also can separate the switching between the change- over switch 20,22 in time, carry out burn out detection in the gap that does not receive processing.And, also can be before inspection, check back etc., do not receive at receiving system 2 under the situation of processing and carry out burn out detection.And control part 26 also can detect the control that does not switch to the reception antenna that is connected with the coaxial cable of this broken string under the situation of broken string in receiving course.
In present embodiment 1, make coaxial cable 9a~9d branch, can easily detect and have or not broken string thereby ramose coaxial cable is applied DC voltage, and can promptly determine the coaxial cable of broken string.
In addition, in present embodiment 1, four coaxial cable 9a~9d are shown and are illustrated, but be not limited to this number.In addition, under the situation of coaxial cable loose contact, the result who has a continuity test all different situation in each continuity test.For can be corresponding to this loose contact, control part 26 also can store the continuity test result of each coaxial cable in the storage part 28, is showing on display part 27 under the situation of the broken string that detects stipulated number that the warning that impels exchange shows.
(embodiment 2)
Embodiments of the present invention 2 then are described.In above-mentioned embodiment 1, use balanced-to-unbalanced transformer 10 to make the heart yearn 90a ground connection of coaxial cable 9a carry out burn out detection, but in present embodiment 2, thereby use short-circuit component to make the heart yearn ground connection of coaxial cable carry out burn out detection by realizations such as diodes.
Fig. 6 be expression corresponding to the reception antenna 81a of the reception antenna 8a shown in Fig. 5, and coaxial cable 9a between the figure of annexation.As shown in Figure 6, the end of opening reception antenna 81a is connected on the heart yearn 91a, and the other end is connected on the external conductor 91A of ground connection.Other structure is identical with embodiment 1, to the additional same Reference numeral of same structure division.
Coupling part between reception antenna 81a and coaxial cable 9a connects heart yearn 91a and external conductor 91A by short-circuit component 10A, short-circuit component 10A permission from heart yearn 91a to the direct current conducting of external conductor 91A and ground connection.
Do not have in the heart yearn 91a of coaxial cable 9a under the situation of broken string, by " closure " of switch 201,203 couples of heart yearn 91a apply voltage V via constant-current source IN, because by short-circuit component 10A and ground connection, so the voltage between heart yearn 91a and the ground connection is ground voltage, the voltage that is input to another input of comparator 202 is below the threshold voltage Vref.Its result, the voltage that comparator 202 output expressions are imported from another input is the detection signal S6 below the threshold voltage Vref, control part 26 is judged as and is not broken string.
On the other hand, exist in the heart yearn 91a of coaxial cable 9a under the situation of broken string, " closure " by switch 201 applies voltage V via 203 couples of heart yearn 91a of constant-current source IN, owing to there is not direct ground connection, therefore another input to comparator 202 directly applies this voltage V INComparator 202 output expressions are from voltage (the voltage V of another input input IN) be the above detection signal S6 of threshold voltage Vref, it is broken string that control part 26 is judged as.
Control part 26 output switching signal S4 select next coaxial cable 9b, use break detection circuit 23 that the next coaxial cable 9b of this selection is carried out continuity test, similarly all coaxial cable 9a~9d are carried out continuity test.Thus, control part 26 can determine immediately that coaxial cable 9a~9d has or not the coaxial cable that breaks and have broken string.
(embodiment 3)
Embodiments of the present invention 3 then are described.In above-mentioned embodiment 1,2, reception antenna 8a, 81a are opening, and heart yearn 90a, 91a pass through balanced-to-unbalanced transformer 10 and short-circuit component 10A respectively and ground connection, but in present embodiment 3, reception antenna is ring-like, and heart yearn passes through this ring-like reception antenna and ground connection.
Fig. 7 is the figure of the annexation of expression reception antenna 82a and coaxial cable 9a.As shown in Figure 7, the end of ring-like reception antenna 82a is connected on the heart yearn 92a of coaxial cable 9a, and the other end is connected on the external conductor 92A of ground connection.Other structure is identical with embodiment 1,2, to the additional same Reference numeral of same structure division.
Do not have in the heart yearn 92a of coaxial cable 9a under the situation of broken string, " closure " by switch 201 applies voltage V via 203 couples of heart yearn 92a of constant-current source IN, because by ring-like reception antenna 82a and ground connection, so the voltage between heart yearn 92a and the ground connection is ground voltage, the voltage that is input to another input of comparator 202 is below the threshold voltage Vref.Its result, the voltage that comparator 202 output expressions are imported from another input is the detection signal S6 below the threshold voltage Vref, control part 26 is judged as and is not broken string.
On the other hand, exist in the heart yearn 92a of coaxial cable 9a under the situation of broken string, " closure " by switch 201 applies voltage V via 203 couples of heart yearn 92a of constant-current source IN, owing to there is not direct ground connection, therefore another input to comparator 202 directly applies this voltage V INComparator 202 output expressions are from voltage (the voltage V of another input input IN) be the above detection signal S6 of threshold voltage Vref, it is broken string that control part 26 is judged as.
Control part 26 output switching signal S4 select next coaxial cable 9b, use the next coaxial cable 9b of 23 pairs of these selections of break detection circuit to carry out continuity test, similarly all coaxial cable 9a~9d are carried out continuity test.Thus, control part 26 can determine immediately that coaxial cable 9a~9d has or not the coaxial cable that breaks and have broken string.
(embodiment 4)
Then explanation is obtained system as the wireless intra-subject information that is used to implement best mode of the present invention.
At first the explanation wireless intra-subject information that possesses the related receiving system of embodiment 4 obtains system.This wireless intra-subject information obtains system and uses the example of capsule type endoscope as the subject introducing device.
Fig. 8 is the integrally-built sketch map that the expression wireless intra-subject information obtains system.As shown in Figure 8, wireless intra-subject information obtains system to be possessed: receiving system 102, and it has the wireless receiving function; And capsule type endoscope (subject introducing device) 103, it is imported in the body of subject 1, takes as the intra-lumen image of in-subject information and to data such as receiving system 102 transmission signal of video signal.In addition, wireless intra-subject information obtains system to be possessed: display device 104, and it shows intra-lumen image according to the signal of video signal that receiving system 102 receives; And portable recording medium 105, its data that are used to carry out between receiving system 102 and the display device 104 transmit.Receiving system 102 possesses radio-cell 102a and receives main unit 102b, can connect these unit by adapter etc. with mounting and dismounting, wherein, described radio-cell 102a has attached to a plurality of antenna for receiving A1~An on the health outer surface of subject 1, and described reception main unit 102b carries out processing of the wireless signal that receives by a plurality of antenna for receiving A1~An etc.In addition, also each antenna for receiving A1~An for example can be installed on the jacket that subject 1 can wear, subject 1 is installed antenna for receiving A1~An by putting on this jacket.In addition, in this case, antenna for receiving A1~An also can mount and dismount with respect to jacket.
Display device 104 is the devices that are used to show the intra-lumen image of being taken by capsule type endoscope 103, has such structures such as work station of carrying out pictorial display according to the data that obtained by portable recording medium 105.Specifically, display device 104 can be to wait the structure of coming direct display image by CRT monitor, liquid crystal display, also can be to the structure of other medium output image as printer etc.
Portable recording medium 105 uses compact flash (registered trade mark) memorizeies etc., can mount and dismount with respect to receiving main unit 102b and display device 104, has when both are installed to carry out the output of information or the function of record.Specifically, when capsule type endoscope 103 in the body cavity of subject 1, move during, portable recording medium 105 inserted to be installed to receive main unit 102b, the data that send from capsule type endoscope 103 are recorded to the portable recording medium 105.Then, at capsule type endoscope 103 after subject 1 is discharged, after the shooting that is to say subject 1 inside finishes, take out this portable recording medium 105 and insert and be installed to display device 104, read recorded data by display device 104 from receiving main unit 102b.The data of utilizing portable recording medium 105 such as compact flash (registered trade mark) memorizer to receive between main unit 102b and the display device 104 transmit, compare with the situation of between reception main unit 102b and display device 104, carrying out wired connection thus, subject 1 can freely move in endoceliac photographic process, also help in addition to shorten and display device 104 between data transfer time.In addition, in the data transmission that receives between main unit 102b and the display device 104, used portable recording medium 105, but be not limited to this, also can in receiving main unit 102b, use other recording equipment of internally-arranged type, for carry out with display device 104 between data transmit and both carried out wired or wireless the connection.
At this, the radio-cell 102a that constitutes receiving system 102 is described and receives main unit 102b with reference to Fig. 9.Fig. 9 is the block diagram of the structure of expression receiving system 102.Radio-cell 102a receives from the wireless signal of capsule type endoscope 103 transmissions and is demodulated into baseband signal.As shown in Figure 9, radio-cell 102a has: change-over switch SW, and it optionally switches any the connection hand-off process among antenna for receiving A1~An; And receiving circuit 111, it is connected the back level of this change-over switch SW, to amplifying and demodulation from the wireless signal that switches the antenna for receiving A1~An that connects by change-over switch SW.
Reception main unit 102b receives radio-cell 102a institute's demodulated baseband signal and handles.As shown in Figure 9, receive main unit 102b and have the signal processing circuit 112 and the A/D converter section 113 that are connected receiving circuit 111 back levels, show display part 114, the storing various information of the information after handling the view data that obtains and various input and handle by signal processing circuit 112 storage part 115, portable recording medium 105, control the control part C1 of these each structure positions and provide the electric power of electric power that portion 116 is provided receiving main unit 102b and radio-cell 102a.Control part C1 has the switch control portion C1a of the switching controls of carrying out antenna.
Receiving circuit 111 will output to signal processing circuit 112 to the baseband signal S11 that high-frequency signal amplifies and demodulation obtains from change-over switch SW output, and the receiving intensity signal S12 of the signal intensity of the high-frequency signal after will representing to amplify outputs to A/D converter section 113.Handle the view data that obtains by signal processing circuit 112 and be recorded in the portable recording medium 105, and on display part 114, carry out pictorial display as required by control part C1.The receiving intensity signal S12 that is converted to digital signal by A/D converter section 113 is taken into control part C1.Switch control portion C1a is according to switching this receiving intensity signal S12 that antenna for receiving A1~An obtains successively, the antenna for receiving that will carry out with the signal intensity of maximum receiving is chosen as the antenna for receiving that is used to obtain view data, and the switching signal S13 that indication switches to this antenna is outputed to change-over switch SW.In addition, control part C1 will record in the portable recording medium 105 with view data by the signal intensity that each antenna for receiving receives accordingly with selected antenna for receiving.The signal intensity of each antenna for receiving of this record is used in the burn out detection of antenna described later, and is the information that is used to calculate capsule type endoscope 103 position in vivo when receiving view data.
Figure 10 is the block diagram of the structure of expression display device 104.Display device 104 utilizes personal computer to wait and realizes, the view data that is recorded in the portable recording medium 105 is further handled, and diagnoses the patient according to a series of images data of having carried out handling, and also can make diagnosis report etc.As shown in figure 10, display device 104 has: input part 121, and it utilizes indicating equipments such as keyboard, mouse to wait and realizes, imports various information; Display part 122, it utilizes liquid crystal display to wait and realizes, shows the various information of handling such as view data of having carried out of exporting; Efferent 123, it utilizes printer to wait and realizes; Storage part 124, its storage comprise the various information of view data; The portable recording medium 105 that can mount and dismount; External communication interface 125, its network with the outside communicates and is connected processing; And control part C2, it utilizes CPU to wait and realizes, the control each part mentioned above.
At this, storage part 124 is preserved statistical data 124a, and this statistical data 124a changes the data of carrying out statistical disposition and obtaining the time to the received electric field strength of each antenna for receiving A1~An of the configuration of each the antenna for receiving A1~An when obtaining view data in the past.In addition, control part C2 has burn out detection handling part C2a, this burn out detection handling part C2a carries out following processing: will compare with the time-variable data and the statistical data 124a of the received electric field strength of additional each the antenna for receiving A1~An of the view data of obtaining from portable recording medium 105, whether employed antenna for receiving A1~An was whether broken string state or antenna for receiving and change-over switch are the bad connection state when this view data was obtained in detection, and its result is outputed to display part 122 etc.
For example, an antenna for receiving is under the situation that does not have broken string, received electric field strength changes in time like that shown in received electric field strength distribution Figure 131,132 of Figure 11, time according to a plurality of received electric field strengths in the past that obtains by each antenna for receiving among each antenna for receiving A1~An in statistical data 124a changes, obtain each antenna for receiving among each antenna for receiving A1~An total received electric field strength meansigma methods Av1~Avn and keep.Burn out detection handling part C2a obtains the meansigma methods RAv1~RAvn of total received electric field strength of each antenna for receiving among current each antenna for receiving A1~An that obtains, respectively meansigma methods Av1~Avn and meansigma methods RAv1~RAvn are compared by each antenna for receiving among each antenna for receiving A1~An, when there being meansigma methods RAv1~RAvn is under the situation of the antenna for receiving below 50% of meansigma methods Av1~Avn, be judged as this antenna for receiving broken string or bad connection, and this judged result is outputed to display part 122.
Capsule type endoscope 103 needs about about 8 hours from being directed to subject 1 beginning till discharging, but produced in the antenna for receiving under the situation of broken string in this period, this antenna for receiving is not switched selection, thereby does not occur the received electric field strength scattergram (promptly only received electric field strength distribution Figure 141 occurring at first-half period) that detect as shown in Figure 12 between latter half.Thus, because total received electric field strength of the antenna for receiving that has broken diminishes, therefore be judged as follows as mentioned above: the meansigma methods of total received electric field strength is that the following antenna for receiving of threshold value is the antenna for receiving that has produced broken string or bad connection.
In addition, meansigma methods Av1~Avn, RAv1~RAvn can be not be directed to value during the subject 1 for capsule type endoscope 103, for example also can obtain meansigma methods, thereby and compare respectively and detect broken string or bad connection for 1 specified time limit of reviewing when discharging from capsule type endoscope 103 from subject.
And, as shown in figure 13, when existing received electric field strength under the accepting state over time continuously under the situation of specified time limit and the antenna for receiving that changes significantly, think that the bad connection as the broken string omen has taken place this antenna for receiving, therefore also can be judged as this antenna for receiving broken string or bad connection.In this case, may not need statistical data 124a.In addition, can carry out differential and obtain received electric field strength and whether change significantly by time of received electric field strength is changed.
In addition, the typical time change profile figure that in statistical data 124a, also can keep the received electric field strength of each antenna for receiving A1~An in advance, burn out detection handling part C2a obtains relevant between the time change profile figure of this typical time change profile figure and the received electric field strength of current each the antenna for receiving A1~An that obtains, according to this correlation, be judged as antenna for receiving broken string or bad connection.
In present embodiment 4, the data of the received electric field strength of the statistical data of the received electric field strength of each antenna for receiving of obtaining in the past and current each antenna for receiving that obtains are compared, thereby detect the broken string or the bad connection of antenna for receiving, therefore the antenna continuity test becomes easily, and can improve the reliability of antenna continuity test.The raising of the reliability of this antenna continuity test is because can detect the broken string that can't detect the antenna for receiving of broken string by other antenna continuity test.
As above explanation, obtain in the system at embodiments of the present invention 4 related wireless intra-subject informations, having a plurality of antennas of use comes selective reception to include the receiving system of the wireless signal of in-subject information according to each received electric field strength, obtain in the system at this wireless intra-subject information, the statistical data holding member keeps the statistical data of the received electric field strength of each antenna in each antenna, the burn out detection parts compare the data of the received electric field strength of each antenna in above-mentioned statistical data and current each antenna that receives and the burn out detection of carrying out each antenna is handled, therefore play following effect: a ring that can obtain as the information of checking etc. and carry out burn out detection, can be simply and carry out the burn out detection of antenna in the short time.
(embodiment 5)
Embodiments of the present invention 5 then are described.In above-mentioned embodiment 4, usage statistics 124a carries out burn out detection, but in present embodiment 5, not usage statistics 124a and carry out burn out detection according to the data of the received electric field strength of the current antenna for receiving that obtains.
Promptly, burn out detection handling part C2a obtains the data with the received electric field strength of additional each antenna for receiving of view data that obtains from portable recording medium 105, no better than under zero the situation, be judged as this antenna for receiving broken string or bad connection at the received electric field strength of this antenna for receiving that obtains.
In addition, also can not use each antenna for receiving received electric field strength data and only use the selection switch data of each antenna for receiving to carry out burn out detection.That is, burn out detection handling part C2a will once not have selecteed antenna for receiving to be judged as the antenna for receiving of broken string or bad connection yet.
In present embodiment 5, usage statistics 124a and carry out the burn out detection of each antenna for receiving simply not.
(embodiment 6)
Embodiments of the present invention 6 then are described.In present embodiment 6, carry out the burn out detection of each antenna for receiving according to the size of the view data that obtains.
The view data that obtains by each antenna for receiving A1~An is carried out compression processing such as JPEG and record in the portable recording medium 105 by receiving main unit 102b.At this, in antenna for receiving A1~An, produce under the situation of bad connection, when sneaking into noise and carry out compression of images in view data, it is big that the size of view data becomes.
Therefore, the sky line options information of burn out detection handling part C2a according to the view data that obtains with when obtaining this view data, under scope in addition the situation of size for regulation of the view data that obtains, be judged as antenna for receiving broken string or bad connection when obtaining this view data.
In addition, do not carry out under the situation that the compression of view data handles receiving main unit 102b side, compress processing in display device 104 sides, but in this case, burn out detection handling part C2a after handling, the compression of carrying out view data carries out above-mentioned burn out detection.
In present embodiment 6, can similarly carry out the burn out detection of antenna for receiving simply with embodiment 5.
(embodiment 7)
Embodiments of the present invention 7 then are described.In present embodiment 7, receive main unit 102b and depart from the burn out detection of carrying out each antenna for receiving synchronously according to signal of video signal.
The high-frequency signal that will be received by each antenna for receiving A1~An by radio-cell 102a sends to as the signal of video signal of base band and receives main unit 102b, reception main unit 102b obtains horizontal synchronization according to the horizontal-drive signal of this signal of video signal, obtain vertical synchronization according to vertical synchronizing signal in addition, and generate view data.
At this, in antenna for receiving, produce under the situation of broken string or bad connection, can't obtain horizontal synchronization, vertical synchronization, depart from synchronously thereby produce.Thereby, the total number that departs from synchronously of each antenna for receiving in each antenna for receiving is under the situation more than the setting, perhaps exist under the situation about concentrating that departs from synchronously, burn out detection handling part C2a is judged as this antenna for receiving broken string or bad connection.In addition, can count departing from synchronously, this value that counts to get is recorded in the portable recording medium 105 with sky line options information by receiving main unit 102b.
In present embodiment 7, can similarly carry out the burn out detection of antenna for receiving simply with embodiment 5,6.
(embodiment 8)
Embodiments of the present invention 8 then are described.In present embodiment 8, carry out the burn out detection of each antenna for receiving according to the number of errors that is included in the wrong detection signal in the signal of video signal.
In present embodiment 8, make the signal of video signal that sends from capsule type endoscope 103 comprise the wrong detection signal in advance, receive main unit 102b and when generating view data, carry out the wrong detection processing according to this signal of video signal.Reception main unit 102b records the number of this wrong detection in the portable recording medium 105 with sky line options information.
Number in wrong detection is more than the setting or under the situation about concentrating, burn out detection handling part C2a decides according to sky line options information and receives the antenna for receiving that this detects wrong view data, and is judged as the antenna for receiving broken string or the bad connection of this decision.
In present embodiment 8, can similarly carry out the burn out detection of antenna for receiving simply with embodiment 5~7.
In addition, in above-mentioned embodiment 4~8, carry out burn out detection in display device 104 sides, but be not limited to this, also can the burn out detection handling part suitable with burn out detection handling part C2a be set receiving main unit 102b side, with the burn out detection outcome record in portable recording medium 105.In this case, thus switch control portion C1a controls and removes the antenna that detects broken string after making from the antenna of selecting to switch object and do not select this antenna.In addition, exist under the situation of this burn out detection, also can on display part 114 grades, show its meaning or report.Thus, can promptly find useless inspection, can carry out following processing: detect the antenna for receiving or the radio-cell 102a integral body of broken string by exchange, avoid useless inspection.
In addition, in embodiment 5~8, there is not usage statistics especially, but data that also can be when using the antenna for receiving not have broken string or bad connection and the data when using the antenna for receiving of broken string or bad connection are obtained with adding up and are used to judge and break or the threshold value of bad connection.
(embodiment 9)
The preferred forms of then present invention will be described in detail with reference to the accompanying related broken wire detection method.In addition, the present invention is not limited to present embodiment 9.
At first illustrate capsule type endoscope is imported the in-examiner information acquisition system that obtains tested intravital view data in the subject, the broken wire detection method that receives from the reception antenna that receiving system had of the wireless signal of capsule type endoscope (being an example of the related broken wire detection method of embodiments of the present invention 9) is described afterwards in above-mentioned in-examiner information acquisition system.
Figure 14 is the sketch map that schematically shows a structure example of the related in-examiner information acquisition system of embodiment 9.As shown in figure 14, present embodiment 9 related in-examiner information acquisition systems possess: capsule type endoscope 302, and it moves and takes in the subject 1 along the path of passing through in the subject 1; Receiving system 303, its reception include by capsule type endoscope 302 takes the wireless signal of the view data that obtains; Work station 306, the view data that its basis is obtained by capsule type endoscope 302 shootings shows the image in the subject 1; And portable recording medium 307, its data that are used to carry out between receiving system 303 and the work station 306 transmit.In addition, this in-examiner information acquisition system possesses portable monitoring arrangement 309, and this monitoring arrangement 309 is connected on the receiving system 303 by cable 308, successively the view data of being obtained by receiving system 303 is monitored demonstration.
Capsule type endoscope 302 has the shell structure that easily imports to the capsule-type in the subject 1, has to take the camera function in the subject 1 and will take the radio communication function of the interior and image data transmission that obtains of subject 1 to reception device external 303.Specifically, thus capsule type endoscope 302 swallowed by the esophagus in the subject 1 by subject 1, move in body cavity according to the wriggling of digestive tract cavity.Meanwhile, capsule type endoscope 302 is taken the endoceliac image of subject 1 successively, and the wireless signal that will include the view data in the resulting subject 1 sends to receiving system 303 successively.
Receiving system 303 is used to receive the wireless signal from importing to the capsule type endoscope 302 in the subject 1, and obtains the view data of utilizing capsule type endoscope 302 to obtain according to this wireless signal.Specifically, receiving system 303 uses antenna element 304 and apparatus main body 305 to realize, wherein, be connected with a plurality of reception antenna 304a~304fs of reception from the wireless signal of capsule type endoscope 302 on the described antenna element 304, described apparatus main body 305 is used for obtaining successively the various processing of view data.Receiving system 303 receives wireless signal from capsule type endoscope 302 by among reception antenna 304a~304f any, this wireless signal is demodulated into picture signal, and obtains the view data of utilizing capsule type endoscope 302 to obtain according to the picture signal that obtains.In this case, the view data of utilizing capsule type endoscope 302 to obtain that receiving system 303 will obtain like this is saved in successively and can inserts in the portable recording medium 307 that is installed on the apparatus main body 305 with mounting and dismounting.
Reception antenna 304a~304f for example uses loop aerial to realize, receives the wireless signal that is sent by capsule type endoscope 302.Reception antenna 304a~304f by decentralized configuration the assigned position on the body surface of subject 1, for example as shown in Figure 14 with the passing through on the corresponding position, path of capsule type endoscope 302.In addition, also reception antenna 304a~304f can be configured on the assigned position of the jacket that makes subject 1 dress.In this case, thus by putting on by subject 1 on the assigned position on the body surface that this jacket is configured in reception antenna 304a~304f subject 1.In addition, the more than one reception antenna of configuration gets final product on subject 1, preferably a plurality of reception antennas of decentralized configuration.In this case, the configuration quantity of reception antenna is not particularly limited in six.
Work station 306 is used to show the image in the subject of being taken by capsule type endoscope 302 1, shows based on the image (i.e. the image of being taken by capsule type endoscope 302) that with portable recording medium 307 is the internal organs etc. in the subject 1 of the view data that obtains of media etc.In addition, work station 306 has following processing capacity: doctor or nurse utilize the image of internal organs in the subject 1 that capsule type endoscope 302 obtains etc. by observation, carry out the diagnosis of subject 1.Work station 306 also has following initialization process function: receiving system 303 is initially set the receiving system that is used for subject 1 is carried out the capsule type endoscope inspection.
Portable recording medium 307 is compact flash portable recording mediums such as (registered trade marks).Portable recording medium 307 has with respect to the apparatus main body 305 of receiving system 303 and work station 306 can mount and dismount and both are inserted when installing can carry out the output of data and the structure of record.Specifically, portable recording medium 307 under being inserted into situation about being installed in the receiving system 303, store successively by receiving system 303 obtain from view data of capsule type endoscope 302 etc.In addition,, after subject 1 is discharged, take out portable recording mediums 307 and insert and be installed to work station 306 at capsule type endoscope 302 from receiving system 303.In this case, work station 306 can be taken into the various data such as view data in the subject 1 that is kept in the portable recording medium 307 that is inserted into installation.
In addition, the data of using portable recording medium 307 to carry out between receiving system 303 and the work station 306 transmit, thus with utilize wired connection receiving system such as the communications cable 303 different with the situation of work station 306, even the process that capsule type endoscope 302 moves in the inside of subject 1, subject 1 also can freely be taken action with the state that carries receiving system 303.
Monitoring arrangement 309 is used for monitoring demonstration by receiving system 303 in real time from the view data that capsule type endoscope 302 obtains.Specifically, monitoring arrangement 309 is connected on the apparatus main body 305 by cable 308, receives the view data of being obtained by receiving system 303 from receiving system 303.309 pairs of view data that receive from receiving system 303 like this of monitoring arrangement monitor demonstration successively.That is, monitoring arrangement 309 obtains the view data of utilizing capsule type endoscope to obtain by above-mentioned receiving system 303, and successively the view data of obtaining is monitored demonstration.In addition, monitoring arrangement 309 has not by receiving system 303 and receives radio communication function from the wireless signal of capsule type endoscope, obtains the view data of utilizing capsule type endoscope 302 to obtain according to the wireless signal that receives.In this case, monitoring arrangement 309 monitors demonstration to the view data of not obtaining by receiving system 303 of utilizing capsule type endoscope 302 to obtain successively.
Each structure of this receiving system 303 and monitoring arrangement 309 then is described.Figure 15 is the block diagram that schematically shows each structure example of the receiving system 303 that connects by cable 308 and monitoring arrangement 309.With reference to Figure 15, the structure of receiving system 303 at first is described, the structure of monitoring arrangement 309 then is described.
As shown in figure 15, connect antenna element 304 by adapter 330 and form receiving system 303 with apparatus main body 305.As mentioned above, antenna element 304 has: antenna switching part 331, and it is connected with a plurality of reception antenna 304a~304f, switches to the reception antenna that is fit to receive wireless signal from reception antenna 304a~304f; Receiving circuit 332, it will be demodulated into picture signal by any wireless signal that receives among reception antenna 304a~304f, and detect the received electric field strength of this wireless signal; And control switching circuit 333, it comes the antenna change action of control antenna switching part 331 according to by receiving circuit 332 detected received electric field strengths.
On the other hand, apparatus main body 305 has: signal processing circuit 334, and it generates the view data of utilizing capsule type endoscope 302 to obtain according to the picture signal of having carried out demodulation by receiving circuit 332; Storage part 335, the view data that its preservation is generated by signal processing circuit 334 etc.; Input part 336, the indication information that its input is indicated the starting or the exercises of receiving system 303; And display part 337, it shows the information relevant with subject 1 etc.In addition, apparatus main body 305 has: communication interface (I/F) 338, and it is used for sending view data etc. by cable 308 to monitoring arrangement 309; Control part 339, the driving of each structural portion of its control receiving system 303; And electric power provides portion 340, and its each structural portion to receiving system 303 provides driving electric.
The function of antenna switching part 331 performances carrying out antenna change action, reception antenna and receiving circuit 332 that this antenna change action will switch from a plurality of reception antenna 304a~304f are electrically connected.In this case, antenna switching part 331 carries out the antenna change action according to the control of control switching circuit 333, and any and the receiving circuit 332 that be fit to receive among the reception antenna 304a~304f of the wireless signal of capsule type endoscope 302 is electrically connected.The wireless signal from capsule type endoscope 302 that above-mentioned antenna switching part 331 will receive by the reception antenna of selecting from reception antenna 304a~304f outputs to receiving circuit 332.
Receiving circuit 332 has demodulation process function and receiving intensity measuring ability, wherein, described demodulation process function will be demodulated into baseband signal from the wireless signal of antenna switching part 331 inputs, and described receiving intensity measuring ability detects the received electric field strength of this wireless signal.Specifically, 332 pairs of receiving circuits carry out demodulation process etc. from the wireless signals of antenna switching part 331 inputs, and this wireless signal is demodulated to picture signal as baseband signal.This picture signal is to include the baseband signal of being taken the view data that obtains by capsule type endoscope 302.Receiving circuit 332 outputs to signal processing circuit 334 with the picture signal that obtains.On the other hand, receiving circuit 332 detects the received electric field strength of above-mentioned wireless signal, with signal, for example RSSI (the Received Signal Strength Indicator: the indication of received signal intensity) output to control switching circuit 333 of the detected received electric field strength of expression.
Control switching circuit 333 is used to control the antenna change action of above-mentioned antenna switching part 331.Specifically, the antenna change action of control switching circuit 333 control antenna switching parts 331 makes and to select the highest reception antenna of received electric field strength of wireless signal according to expression from the signal (for example RSSI signal) of the received electric field strength of receiving circuit 332 inputs from a plurality of reception antenna 304a~304f, and the reception antenna that will select like this and receiving circuit 332 are electrically connected.
Signal processing circuit 334 is used to generate the view data based on carried out the picture signal of demodulation by receiving circuit 332.Specifically, the Flame Image Process that 334 pairs of picture signals of having carried out demodulation by receiving circuit 332 of signal processing circuit are stipulated etc. generate the view data of utilizing capsule type endoscope 302 to obtain based on this picture signal.Signal processing circuit 334 outputs to control part 339 with the view data that obtains.
Storage part 335 can insert with mounting and dismounting installs above-mentioned portable recording medium 307, and the view data that will indicate the data of storage by control part 339 successively, is for example generated by signal processing circuit 334 is saved in the portable recording medium 307.In addition, thus storage part 335 also can constitute by having memory IC such as RAM or compact flash by various information such as storage part 335 self storing image datas.
Input part 336 uses the load button of importing the indication information that control part 339 is indicated to realize, according to user's input operation, for example the information relevant with subject 1 is presented at various indication informations such as indication on the display part 337 to control part 339 input.Display part 337 uses thin displays such as liquid crystal indicators or organic EL panel to realize, shows by the information of control part 339 indicated numbers, the information relevant with subject 1 etc. for example.In addition, display part 337 also can constitute the information input function with touch panel etc., and replaces input part 336 and to control part 339 input indication informations.In this case, receiving system 303 also can not have input part 336.
The image data transmission that communication I/F 338 is used for being obtained by receiving system 303 is to monitoring arrangement 309.Specifically, communication I/F 338 is connected on the monitoring arrangement 309 by cable 308, will send to monitoring arrangement 309 by the view data (promptly taking the view data that obtains by capsule type endoscope 302) that signal processing circuit 334 generates.
Control part 339 uses the CPU that carries out handling procedures, stores the ROM of handling procedure etc. and storage computing parameter or realize the driving of each structural portion of control receiving system 303 to the RAM of the input information of control part 339 inputs in advance.In this case, control part 339 carry out and each structural portion between the input and output control of information, and control: at the data of storage part 335 (specifically portable recording medium 307) preserve display action that action and data read action, display part 337 and by the I/F 338 that communicates by letter to the image data transmission action of monitoring arrangement 309 etc.This control part 339 carries out the various processing based on the indication information of importing by input part 336.
In addition, control part 339 has the 339a of confirming operation portion.The 339a of confirming operation portion carries out following autognostic to be handled: for example will confirm whether each structural portion of receiving system 303 normally moves from the indication information of input part 336 inputs as triggering.In this case, the 339a of confirming operation portion judges antenna switching part 331, receiving circuit 332, control switching circuit 333, signal processing circuit 334, storage part 335, input part 336, display part 337, communication I/F 338, control part 339 and electric power provide the connection status between the each several part of portion 340 whether normal, diagnose these each structural portion whether to be in the state that can normally move.In addition, the 339a of confirming operation portion diagnosis can normally carry out the monitoring arrangement 309 that connects by cable 308 the supervision display action, be whether diagnostic monitoring device 309 can monitor demonstration to the view data by signal processing circuit 334 generations.Control part 339 is presented at the diagnostic result of the above-mentioned confirming operation 339a of portion on the display part 337.
Electric power provides the on and off switch of portion 340 in will being arranged on apparatus main body 305 (, not shown) to switch under the situation of on-state, provides driving electric to each structural portion of receiving system 303.In addition, provide portion's 340 illustration aneroid battery, lithium rechargeable battery or Ni-MH battery etc. as electric power.In addition, portion 340 is provided also can be rechargeable to electric power.
The structure of monitoring arrangement 309 then is described.As shown in figure 15, monitoring arrangement 309 has: reception antenna 390, and it is used to receive the wireless signal from capsule type endoscope 302; Receiving circuit 391, it will be demodulated into picture signal by the wireless signal that reception antenna 390 receives; And signal processing circuit 392, it generates the view data of utilizing capsule type endoscope 302 to obtain according to the picture signal of having carried out demodulation by receiving circuit 391.In addition, monitoring arrangement 309 has: connect test section 393, it detects by cable 308 and connects receiving system 303 and monitoring arrangement 309; Communication I/F 394, it is used for by the view data of cable 308 receptions from receiving system 303; And on-off circuit 395, it will output to control part 398 from the view data of the I/F 394 that communicates by letter under receiving system 303 and monitoring arrangement 309 connected situations, will output to control part 398 from the view data of signal treatment circuit 392 under receiving system 303 and situation that monitoring arrangement 309 is not connected.Monitoring arrangement 309 also has: input part 396, the indication information that its input is indicated control part 398; Display part 397, it monitors demonstration to view data etc.; Control part 398, the driving of each structural portion of its control monitoring arrangement 309; And electric power provides portion 399, and its each structural portion to monitoring arrangement 309 provides driving electric.
Reception antenna 390, receiving circuit 391 and signal processing circuit 392 are used for receiving the wireless signal from capsule type endoscope 302 under receiving system 303 and situation that monitoring arrangement 309 is not connected, and obtain the view data of utilizing capsule type endoscope 302 to obtain according to this wireless signal.Specifically, reception antenna 390 receives the wireless signal from capsule type endoscope 302, and the wireless signal that receives is outputed to receiving circuit 391.Receiving circuit 391 will be demodulated into picture signal by the wireless signal that reception antenna 390 receives, and the picture signal that obtains is outputed to signal processing circuit 392.Signal processing circuit 392 generates the view data of utilizing capsule type endoscope 302 to obtain according to the picture signal of having carried out demodulation by receiving circuit 391, and the view data that obtains is outputed to on-off circuit 395.
By having this reception antenna 390, receiving circuit 391 and signal processing circuit 392, monitoring arrangement 309 can not obtain the view data of utilizing capsule type endoscope 302 to obtain by receiving system 303, can monitor demonstration to this view data on display part 397.
Connect test section 393 and be used to detect being connected between receiving system 303 and the monitoring arrangement 309.Specifically, connect test section 393 detections and follow, detect the receiving system 303 and the monitoring arrangement 309 connected meanings thus by cable 308 connection receiving systems 303 and the electrically conducting that monitoring arrangement 309 causes.Connect test section 393 under the situation about being connected that detects between above-mentioned receiving system 303 and the monitoring arrangement 309, the testing result that detects the meaning of this connection is outputed to control part 398.
Communication I/F 394 is used for receiving the view data that sends from receiving system 303 by cable 308.Specifically, communication I/F 394 is connected with the communication I/F 338 of receiving system 303 by cable 308, is transfused to from the view data of this communication I/F 338 outputs, the view data of promptly being obtained by receiving system 303.Communication I/F 394 outputs to on-off circuit 395 with the view data that obtains.
On-off circuit 395 is according to being connected between receiving system 303 and the monitoring arrangement 309/ connect, and carries out the change action that any and control part 398 among signal processing circuit 392 and the communication I/F 394 are electrically connected.Specifically, under the situation that receiving system 303 has been connected with monitoring arrangement 309, on-off circuit 395 is electrically connected with control part 398 according to will communicate by letter I/F 394 of the control of control part 398, under receiving system 303 and situation that monitoring arrangement 309 is not connected, on-off circuit 395 is electrically connected signal processing circuit 392 and control part 398 according to the control of control part 398.Promptly, under the situation that receiving system 303 has been connected with monitoring arrangement 309, on-off circuit 395 will output to control part 398 from the view data (view data of being obtained by receiving system 303) of communication I/F 394, under receiving system 303 and situation that monitoring arrangement 309 is not connected, on-off circuit 395 will output to control part 398 by the view data that signal processing circuit 392 generates.
Input part 396 uses the load button of the indication information that input indicates control part 398 to realize, in response to user's input operation, for example will indicate indication information that the driving of each structural portion begins etc. to be input to control part 398.Display part 397 uses thin displays such as liquid crystal indicators or organic EL panel to realize, to monitoring demonstration by the information of control part 398 indicated numbers, the view data that for example receives from receiving system 303 by cable 308 or the view data of not obtaining by receiving system 303 etc.In addition, display part 397 has the information input function of touch panel etc., will be input to control part 398 to the indication information that control part 398 is indicated.
Control part 398 uses the CPU that carries out handling procedures, stores the ROM of handling procedure etc. and storage computing parameter or realize to the RAM of the input information of control part 398 inputs in advance, and the driving of each structural portion of monitoring arrangement 309 is controlled.In this case, control part 398 carry out and each structural portion between the input and output control of information, and the supervision display action of display part 397 and the detection action etc. that connects test section 393 controlled.
In addition, the change action of control part 398 control said switching circuit 395.Specifically, control part 398 is from connecting under the situation that test section 393 receives the testing result that detects the meaning that is connected between receiving system 303 and the monitoring arrangement 309, the change action of gauge tap circuit 395 is electrically connected with control part 398 with the I/F 394 that will communicate by letter, not from connecting under the situation that test section 393 receives the testing result that detects the meaning that is connected between receiving system 303 and the monitoring arrangement 309, the change action of gauge tap circuit 395 is to be electrically connected signal processing circuit 392 and control part 398.
On and off switch in being arranged on monitoring arrangement 309 (not shown) switches under the situation of on-state, and electric power provides each structural portion of 399 pairs of monitoring arrangements 309 of portion that driving electric is provided.In addition, provide portion's 399 illustration aneroid battery, lithium rechargeable battery or Ni-MH battery etc. as electric power.In addition, portion 399 is provided also can be rechargeable to electric power.
Adopted the monitoring arrangement 309 of this structure to be connected on the receiving system 303 by cable 308, following thus performance function: receive the view data of utilizing capsule type endoscope 302 to obtain by receiving system 303, and successively this view data that receives, the view data promptly obtained by receiving system 303 are monitored demonstration in real time.
The continuity test of reception antenna 304a~304f on the receiving system 303 that is arranged on above-mentioned in-examiner information acquisition system then is described.Below, employed wire disconnection inspecting device in the continuity test of above-mentioned reception antenna 304a~304f at first is described, then the broken wire detection method of the reception antenna 304a~304f of this wire disconnection inspecting device has been used in explanation.
Figure 16 schematically shows to be used for the block diagram of a structure example of wire disconnection inspecting device that 9 related broken wire detection methods according to the embodiment of the present invention carry out the continuity test of reception antenna.As shown in figure 16, this wire disconnection inspecting device 310 has: input part 311, and it is used to import various indication informations; Image pickup part 312, it is used to take the natural image that sends for the continuity test that carries out reception antenna; Image processing part 313, its generation comprise the picture signal of the natural image of being taken by image pickup part 312; And mode image generating unit 314, its generation includes the picture signal of the mode image of predefined prescribed model.In addition, wire disconnection inspecting device 310 has: on-off circuit 315, and it is used for and will outputs to transtation mission circuit 316 from the picture signal of image processing part 313 or from the picture signal of mode image generating unit 314; Transtation mission circuit 316, thus it is to modulating the wireless signal (hereinafter referred to as the test wireless signal) that generates test usefulness by the picture signal of on-off circuit 315 inputs; And transmitting antenna 317, it will output to the outside by the test wireless signal that transtation mission circuit generates.Wire disconnection inspecting device 310 also has: control part 318, the driving of each structural portion of its control wire disconnection inspecting device 310; And electric power provides portion 319, and its each structural portion to wire disconnection inspecting device 310 provides driving electric.
Input part 311 uses the load button of importing the indication information that control part 318 is indicated to realize, in response to user's input operation, for example will test wireless signal and begin to output to outside indication or will be by testing the indication etc. that test pattern that wireless signal exports switch to above-mentioned natural image or mode image to control part 318 input.In addition, this test pattern is above-mentioned natural image and any in the mode image.
312 pairs of conducts of image pickup part are used to carry out the test pattern of continuity test of reception antenna and the natural image that sends is made a video recording.Specifically, image pickup part 312 uses optical systems such as imaging apparatus such as light-emitting component, CCD or CMOS such as LED and lens to realize.In this case, 312 pairs of reflected light from subject that caused by the illumination light that is radiated at desired shooting visual field of image pickup part are subjected to light, carry out opto-electronic conversion to being subjected to reflection of light light, take desired natural image thus.Image pickup part 312 outputs to image processing part 313 with the view data of the natural image that obtains.
Image processing part 313 is used to generate the picture signal of the view data that includes the natural image of being taken by image pickup part 312.Specifically, 313 pairs of signal processing of stipulating from the view data of image pickup part 312 inputs of image processing part, generation comprises the picture signal of the view data of natural image.Image processing part 313 outputs to on-off circuit 315 with the picture signal that obtains.
Mode image generating unit 314 is used to generate the picture signal that includes the mode image of predefined prescribed model as view data.Specifically, mode image generating unit 314 generates the mode image with the pattern that is generated by control part 318 indications from predefined various modes, generates the picture signal of the view data that comprises the mode image that is generated.Mode image generating unit 314 outputs to on-off circuit 315 with the picture signal that obtains.In addition, the vitta that forms by the color of stipulating as this mode image illustration, gray scale, tonal gradation, white image and picture black etc. based on the ramp waveform of stipulating.
The test pattern that on-off circuit 315 is used for comprising at the test wireless signal that sends to the outside switches to above-mentioned natural image and any in the mode image.Specifically, on-off circuit 315 is by based on the control by the control part 318 of the indication information of input part 311 inputs, carries out the change action that any and transtation mission circuit 316 in image processing part 313 and the mode image generating unit 314 are electrically connected.In this case, on-off circuit 315 is by the change action based on the control of above-mentioned control part 318, will output to transtation mission circuit 316 from the picture signal (being the picture signal of natural image) of image processing part 313 with from the picture signal (being the picture signal of mode image) of mode image generating unit 314 any.
The image signal modulation that transtation mission circuit 316 is used for including the view data of test pattern is the test wireless signal.Specifically, 316 pairs of transtation mission circuits carry out modulation treatment and electric power processing and amplifying etc. by on-off circuit 315 from the picture signal that image processing part 313 or mode image generating unit 314 receive, and this image signal modulation is the test wireless signal.The test wireless signal that transtation mission circuit 316 will obtain outputs to transmitting antenna 317.Transmitting antenna 317 will output to the outside by the test wireless signal that transtation mission circuit 316 generates.In addition, transmitting antenna 317 preferably sends the test wireless signal with the wireless signal frequency band much at one that is sent by capsule type endoscope 302.
Control part 318 uses the CPU that carries out handling procedures, stores the ROM of handling procedure etc. and storage computing parameter or realize to the RAM of the input information of control part 318 inputs in advance, and the driving of each structural portion of wire disconnection inspecting device 310 is controlled.In this case, control part 318 carry out and each structural portion between the input and output control of information, and according to the driving of controlling each structural portion from the indication information of input part 311.For example, control part 318 begins to indicate the shooting action of controlling image pickup part 312 according to the shooting from input part 311, and the picture signal of control image processing part 313 generates action.On the other hand, control part 318 generates indication according to the mode image from input part 311 and comes mode image to mode image generating unit 314 to generate action and picture signal to generate to move and control.In addition, control part 318 sends change action that indication comes the gauge tap circuit so that image processing part 313 and transtation mission circuit 316 are electrically connected according to the natural image from input part 311, and control transtation mission circuit 316 serve as that the test wireless signal sends to the outside with the image signal modulation that will be generated by image processing part 313.On the other hand, control part 318 sends change action that indication comes the gauge tap circuit so that mode image generating unit 314 and transtation mission circuit 316 are electrically connected according to the mode image from input part 311, and control transtation mission circuit 316 serve as that the test wireless signal sends to the outside with the image signal modulation that will be generated by mode image generating unit 314.
Electric power provides the on and off switch (not shown) of portion 319 in will being arranged on wire disconnection inspecting device 310 to switch under the situation of on-state, provides driving electric to each structural portion of wire disconnection inspecting device 310.In addition, provide portion's 319 illustration aneroid battery, lithium rechargeable battery or Ni-MH battery etc. as electric power.In addition, portion 319 is provided also can be rechargeable to electric power.
Adopted the wire disconnection inspecting device 310 of this structure can send the test wireless signal that includes desired test pattern as view data.By using the wire disconnection inspecting device 310 that sends above-mentioned test wireless signal, can be arranged on the continuity test of a plurality of reception antenna 304a~304f in the above-mentioned receiving system 303.
The broken wire detection method of the reception antenna that embodiments of the present invention 9 are related then is described.Figure 17 is the flow chart of an example of the broken wire detection method of the related reception antenna of expression embodiments of the present invention 9.In addition, utilize embodiments of the present invention 9 related broken wire detection methods to carry out the receiving system 303 of the continuity test of reception antenna, battery etc. is set and makes electric power that the state that portion 340 becomes can provide driving electric is provided, carry out above-mentioned autognostic and handle and confirm in advance normally to move.
As shown in figure 17, at first the receiving system 303 that has a reception antenna 304a~304f of continuity test object by 306 pairs of work stations carries out initialization process, this receiving system 303 is initially set be used for subject 1 is carried out the receiving system (step S101) that capsule type endoscope is checked.Specifically, as shown in figure 18, unload antenna element 304 from receiving system 303, the receiving system 303 that mounting is in the state that unloads above-mentioned antenna element on carriage 322 promptly installs main body 305.Carriage 322 is connected on the work station 306 by cable 321.Work station 306 is in and has started the state that is used for receiving system 303 is carried out the application program of initialization process in advance, according to this application program receiving system 303 is carried out initialization process.
Then, unload the apparatus main body 305 that has carried out above-mentioned initialization process, on this apparatus main body 305, connect antenna element 304, form receiving system 303 (step S102) thus from carriage 322.This receiving system 303 is in the state that has carried out above-mentioned initialization process, for example the registration information (patient's name, patient ID, check data etc.) relevant with subject 1.
Afterwards, monitoring arrangement 309 is connected on this receiving system 303 (step S103), carries out the confirming operation (step S104) of the monitoring arrangement 309 of this connection by cable 308.Specifically, the operation inputting part 336 and control part 339 of receiving system 303 indicated make the confirming operation carry out monitoring arrangement 309.In this case, whether the display part 397 of the above-mentioned confirming operation 339a of portion diagnostic monitoring device 309 is in the state that can monitor demonstration to the view data that is generated by signal processing circuit 334, and control part 339 will utilize the diagnostic result of the monitoring arrangement 309 that the above-mentioned confirming operation 339a of portion obtains to be presented on the display part 337.The user can confirm whether monitoring arrangement 309 is in the state that can monitor demonstration to the view data of being obtained by receiving system 303 by confirming the diagnostic result of the monitoring arrangement 309 of demonstration on display part 337.In addition, in the confirming operation operation of this step S104, also can carry out the confirming operation of monitoring arrangement 309 and carry out the autognostic processing of above-mentioned receiving system 303.
Then, receiving system 303 is checked that reception antennas have or not broken string, wherein, described receiving system 303 is connected with by the confirming operation operation of this step S104 has confirmed normally to move the monitoring arrangement 309 of (monitoring demonstration).Specifically, select the reception antenna (step S105) of continuity test object a plurality of reception antenna 304a~304f from the antenna element 304 that is connected this receiving system 303, the reception antenna of selected continuity test object is sent the test wireless signal (step S106) of wire disconnection inspecting device.In this case, for example as shown in figure 19, be made as following state: make wire disconnection inspecting device 310 near the reception antenna 304a that are chosen as the continuity test object, only receive test wireless signal from wire disconnection inspecting device 310 by the reception antenna 304a of continuity test object.Then, 310 couples of this reception antenna 304a of wire disconnection inspecting device send the test wireless signal with the stipulated time, and this test wireless signal includes the preassigned desired test pattern by the input operation of input part 311.
In addition, supervision under the situation of being obtained test pattern by receiving system 303 by the reception antenna that does not have broken string shows that this test pattern is enough for monitoring arrangement 309 to send the time of testing wireless signal.In addition, known utilization test wireless signal has sent the test pattern of which type of displaying contents if the user discerns, and then wire disconnection inspecting device 310 also can be used as desired test pattern and sends above-mentioned natural image and any in the mode image.
Then, whether affirmation monitors on monitoring arrangement 309 and has shown the test pattern (step S107) that is sent by wire disconnection inspecting device 310 like this.Specifically, as shown in figure 19, if do not break between reception antenna 304a and the receiving system 303, then receive the test wireless signal of this reception antenna 304a that sends to the continuity test object by receiving system 303 from wire disconnection inspecting device 310 by this reception antenna 304a.In this case, the test wireless signal that receiving system 303 will receive like this is demodulated into picture signal, obtains the view data of test pattern according to the picture signal that obtains, and by cable 308 with this image data transmission to monitoring arrangement 309.Monitoring arrangement 309 is presented at test pattern P on the display part 397 according to the view data that receives from receiving system 303.Thereby the user can be by confirming to have shown test pattern P (step S107, "Yes") like this on the display part 397 of monitoring arrangement 309, and the reception antenna 304a that is judged as the continuity test object does not in real time have broken string (step S108).
On the other hand, if between reception antenna 304a and the receiving system 303 broken string has taken place, the test wireless signal from wire disconnection inspecting device 310 that then sends to this reception antenna 304a of continuity test object is not received by this receiving system 303.In this case, receiving system 303 can't obtain the test pattern that is included in the above-mentioned test wireless signal.Therefore, monitoring arrangement 309 does not show this test pattern on display part 397.Thereby, the user can be by confirming not show test pattern (step S107 like this on the display part 397 of monitoring arrangement 309, "No"), the reception antenna 304a that is judged as the continuity test object in real time is in the state (broken string state) (step S109) of broken string.
Afterwards, if the continuity test of all reception antenna 304a~304f that had for receiving system 303 does not finish (step S110, "No"), then carry out the later treatment process of above-mentioned steps S105 repeatedly.In this case, select the reception antenna of continuity test object the remaining reception antenna 304b~304f outside removing the reception antenna 304a that continuity test finishes, the reception antenna of this selection is carried out the later treatment process of above-mentioned steps S106 repeatedly.Like this, under all reception antenna 304a~304f for receiving system 303 are through with the situation of above-mentioned continuity test (step S110, "Yes"), can check reception antenna 304a~304f respectively have or not broken string.
If in the reception antenna 304a~304f that has carried out continuity test like this, there is not the reception antenna of broken string state, then can be judged as receiving system 303 and be in the normal condition that can normally receive from the wireless signal of capsule type endoscope 302 with above-mentioned reception antenna 304a~304f, afterwards, thus the receiving system 303 that makes subject 1 carry this normal condition can begin the capsule type endoscope inspection immediately.
On the other hand, in this reception antenna 304a~304f, confirm to exist under the situation of reception antenna of broken string state, can be judged as that the receiving system 303 with above-mentioned reception antenna 304a~304f is in because the broken string of reception antenna and can't normally receive abnormality from the wireless signal of capsule type endoscope 302.In this case, the abnormality that can judge above-mentioned receiving system 303 is caused by the broken string of reception antenna, and can easily determine the reception antenna of broken string state.Thereby, exchange with the normal reception antenna that does not break or antenna element 304 and the normal antenna element that does not have broken string are exchanged by reception antenna, can easily the receiving system 303 of this abnormality be returned to the receiving system of above-mentioned normal condition above-mentioned broken string state.Thus, thus this receiving system 303 that subject 1 is carried return to this normal condition can begin the capsule type endoscope inspection immediately.
In addition, in the related broken wire detection method of embodiments of the present invention 9, also can replace monitoring arrangement 309 and the display part 337 of receiving system 303 is shown be included in from the test pattern P in the test wireless signal of wire disconnection inspecting device 310.In this case, do not need above-mentioned monitoring arrangement 309 is connected on the receiving system 303 and can use this receiving system 303 and wire disconnection inspecting device 310 to carry out the continuity test of reception antenna.In this case, as long as above-mentioned autognostic is handled and the receiving system 303 of each treatment process of step S101, S102 carries out the later treatment process of step S105 to having carried out.
Specifically, as shown in figure 20, make wire disconnection inspecting device 310 near the reception antenna 304a that from a plurality of reception antenna 304a~304f, are chosen as the continuity test object, and will send to this reception antenna 304a from the test wireless signal of this wire disconnection inspecting device 310 with the stipulated time.At this, showing on the display part 337 under the situation of the test pattern P that obtains by receiving system 303 according to this test wireless signal, can be judged as the reception antenna 304a that is sent out this test wireless signal does not break, under this test pattern P is not displayed on situation on the display part 337, can be judged as the reception antenna 304a that is sent out this test wireless signal and be in the broken string state.By remaining reception antenna 304b~304f is carried out this continuity test repeatedly, can finish the continuity test of all reception antenna 304a~304f.
In addition, in embodiments of the present invention 9, the registration information relevant with subject 1 is carried out initial setting in receiving system 303 for the continuity test that carries out reception antenna, but the present invention is not limited to this, also can register the virtual subject information that is used for continuity test and sets in receiving system 303, for example virtual patient's name, virtual patient ID, continuity test date are waited and carry out initial setting.
In addition, the test pattern that sends to receiving system 303 by continuity test can be saved in the storage part 335 of receiving system 303, also can on monitoring arrangement 309 or display part 337, show send to the test pattern of receiving system 303 by continuity test after, by control part 339 deletions.
As discussed above, in embodiments of the present invention 9, by cable receiving system is connected with portable monitoring arrangement, and on this monitoring arrangement, show the view data of obtaining by this receiving system in real time, the reception antenna of this receiving system is sent the test wireless signal of wire disconnection inspecting device with the stipulated time, on this monitoring arrangement, do not have to show to be included under the situation of the test pattern in this test wireless signal, be judged as the reception antenna that is sent out this test wireless signal and be in the broken string state.Therefore, the broken wire detection method that can be achieved as follows: even on the work station that shows the image of taking by capsule type endoscope, do not connect receiving system, can judge also whether this receiving system is in the normal condition that can normally receive from the wireless signal of capsule type endoscope, in addition, be under the situation that can't normally receive being judged as this receiving system from the abnormality of the wireless signal of capsule type endoscope, the abnormality that can judge this receiving system is that the broken string owing to reception antenna causes, and can easily detect the reception antenna of broken string state from a plurality of reception antennas.
The broken wire detection method related according to present embodiment 9, play following effect: even on the work station that shows the image of taking by capsule type endoscope, do not connect receiving system, can easily check out also whether this receiving system is in the state that can normally receive from the wireless signal of capsule type endoscope, and be judged as under the situation that is in abnormality, can easily detecting the broken string state of the reception antenna of the abnormality that causes this receiving system.
In addition, send the test wireless signal by reception antenna to the continuity test object, can confirm in real time that this reception antenna has or not broken string, therefore can shorten from checking that reception antenna has or not the broken string beginning up to the time that makes till the subject that carries out the capsule type endoscope inspection carries normal receiving system, can easily prepare the receiving system of normal condition required in capsule type endoscope is checked.
And, can from a plurality of reception antennas that receiving system had, easily detect and the reception antenna of definite broken string state, therefore can be easily reception antenna that should the broken string state be exchanged with normal reception antenna, can be easily be that the receiving system that broken string owing to reception antenna is in abnormality returns to normal condition with being judged as.
In addition, be presented in real time under the situation on the display part of receiving system constituting the view data that to obtain by reception antenna, with stipulated time each reception antenna transmission test wireless signal to receiving system with above-mentioned display part, even above-mentioned monitoring arrangement is not connected thus and can judges on the receiving system whether this receiving system is in normal condition yet, in addition, be under the situation of abnormality being judged as this receiving system, the abnormality that can judge this receiving system is that the broken string owing to reception antenna causes, and can easily detect from a plurality of reception antennas and the reception antenna of definite broken string state.
In addition, the embodiment of being put down in writing in the application's description 1~9 can make up mutually and implement.For example can use above-mentioned wire disconnection inspecting device 310 and receiving system 2 or receiving system 102 to carry out the burn out detection of reception antenna, also can constitute receiving system 2 or receiving system 102 are connected with monitoring arrangement 309, and on monitoring arrangement 309, show the result who has carried out the burn out detection of the reception antenna handled by above-mentioned receiving system 2 or receiving system 102.In addition, the control part 339 that also can establish above-mentioned receiving system 303 has the burn out detection handling part suitable with burn out detection handling part C2a, has the control part 339 of above-mentioned burn out detection handling part and the burn out detection that embodiments of the present invention 4~8 are roughly similarly carried out reception antenna.And, the break detection circuit suitable with break detection circuit 23 also can be set in the antenna element 304 of above-mentioned receiving system 303 and switch this break detection circuit and reception antenna 304a~304f between the change-over switch (being equivalent to change-over switch 22) of connection status, and carry out the burn out detection of reception antenna by this break detection circuit.In this case, control switching circuit 333 further control utilizes the break detection circuit of above-mentioned change-over switch and the connection status between reception antenna 304a~304f, and control part 339 gets final product according to the burn out detection that the detection signal S6 from above-mentioned break detection circuit carries out reception antenna.
Utilizability on the industry
As mentioned above, receiving system involved in the present invention is used for the situation that capsule type endoscope in the subject receives the wireless signal of the captured view data of the capsule type endoscope that comprises the internal organs inside that imports to this subject, particularly is applicable to the receiving system of the burn out detection (burn out detection of the feed line that specifically receiving system is connected with reception antenna) between the reception antenna of can be simply and carrying out at short notice receiving wireless signal for the capsule type endoscope in above-mentioned subject and the receiving system.

Claims (7)

1. a receiving system is used for receiving the transmission information that sends from the dispensing device that moves by the feed line and the reception antenna of selected switching, and this receiving system is characterised in that to possess:
Select switching part, it is to being connected to a plurality of feed lines on a plurality of reception antennas and selecting and switching;
Detect with selecting switching part, it makes above-mentioned a plurality of feed line branch respectively near above-mentioned selection switching part, and a plurality of feed lines after this branch are selected to switch;
Grounded parts, it is arranged between above-mentioned feed line and the above-mentioned reception antenna, makes above-mentioned feed line ground connection;
The burn out detection parts, whether it applies DC voltage to utilizing above-mentioned detection with the feed line that the selection switching part has carried out selecting to switch by constant-current source, be that ground voltage detects above-mentioned feed line and has or not broken string according to the voltage of feed line; And
Control assembly, it carries out above-mentioned detection synchronously makes above-mentioned burn out detection parts carry out burn out detection with the selection switching controls of selecting switching part and with this selection switching controls.
2. receiving system according to claim 1 is characterized in that,
Above-mentioned reception antenna is opening reception antenna, connects above-mentioned feed line and above-mentioned reception antenna by balanced-to-unbalanced transformer, and makes the feed line side joint ground of this balanced-to-unbalanced transformer.
3. receiving system according to claim 1 is characterized in that,
Above-mentioned reception antenna is opening reception antenna, connects above-mentioned feed line and above-mentioned reception antenna by short-circuit component, an end ground connection of this short-circuit component.
4. receiving system according to claim 1 is characterized in that,
Above-mentioned reception antenna is a ring Shape antenna, and the end that above-mentioned feed line is connected with above-mentioned reception antenna is grounded.
5. receiving system according to claim 1 is characterized in that,
Above-mentioned feed line is a coaxial cable, makes external conductor ground connection.
6. receiving system according to claim 1 is characterized in that,
Above-mentioned control assembly is exported burn out detection result's control.
7. a receiving system is used for receiving the transmission information that sends from the dispensing device that moves by the feed line and the reception antenna of selected switching, and this receiving system possesses:
Select switching part, it is to being connected to a plurality of feed lines on a plurality of reception antennas and selecting and switching;
Detect with selecting switching part, it makes above-mentioned a plurality of feed line branch respectively near above-mentioned selection switching part, and the feed line after the branch is selected and switched;
The burn out detection parts, it is arranged between each feed line and each reception antenna, has or not broken string by applying the feed line that DC voltage detects selected switching; And
Control assembly, it carries out the selection switching controls of above-mentioned detection with the selection switching part, and synchronously makes above-mentioned burn out detection parts carry out burn out detection with above-mentioned detection with the selection switching controls of selecting switching part,
Wherein, above-mentioned reception antenna is ring-like reception antenna.
CN2006800331968A 2005-09-09 2006-08-29 Receiver apparatus Active CN101262810B (en)

Applications Claiming Priority (7)

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JP262045/2005 2005-09-09
JP2005262045A JP2007068895A (en) 2005-09-09 2005-09-09 Inspection method of disconnection
JP2005306116A JP4827486B2 (en) 2005-10-20 2005-10-20 Wireless in-vivo information acquisition system
JP306116/2005 2005-10-20
JP2005311663A JP4751696B2 (en) 2005-10-26 2005-10-26 Receiver
JP311663/2005 2005-10-26
PCT/JP2006/317007 WO2007029570A1 (en) 2005-09-09 2006-08-29 Receiver apparatus

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