CN102467810B - Positioning alarm method and positioning alarm system - Google Patents
Positioning alarm method and positioning alarm system Download PDFInfo
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- CN102467810B CN102467810B CN201010537798.5A CN201010537798A CN102467810B CN 102467810 B CN102467810 B CN 102467810B CN 201010537798 A CN201010537798 A CN 201010537798A CN 102467810 B CN102467810 B CN 102467810B
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Abstract
The invention discloses a positioning alarm method and a positioning alarm system. The positioning alarm method comprises the following steps that: by using a preset time period as a cycle, a high-frequency base station receives a positioning alarm message which is sent by a radio frequency identification (RFID) identification card in a radio frequency mode at a first preset moment, and forwards the received positioning alarm message to a control center; the control center identifies the positioning alarm message; if the positioning alarm message comprises a positioning message, according to pre-established corresponding relationship information between a base station identifier and a base station position, the control center acquires the base station position, corresponding to the base station identifier which uniquely identifies the high-frequency base station, as a position of the high-frequency base station such that the RFID identification card is positioned at the position of the high-frequency base station, wherein the positioning message comprises card identification information which uniquely identifies the RFID identification card; and if the positioning alarm message comprises an alarm message, according to a card identification message and alarm type information in the alarm message, the control center correspondingly gives an alarm. By the embodiment of the invention, a target object can be accurately positioned, and the alarm can be timely given when an identification card which is used for positioning the target object is abnormal.
Description
Technical field
(radio frequency identification devices, hereinafter to be referred as RFID) technology, especially a kind of positioning alarm method and positioning alarm system to the present invention relates to radio frequency identification.
Background technology
In actual applications, often need to, to specific destination object, comprise: personnel and article, supervise, monitor.For example: the ewborn infant in hospital, patient are supervised, know its scope of activities, whether leave hospital specific region; Mental patient, patients of senile dementia to monitor center are guarded, and know its scope of activities, whether leave monitor center; Convict under detention in prison is supervised, know its current residing position, the convict that prevents from being in prison escapes from prison and runs away.
For the ease of destination object is guarded, is supervised, at present, conventionally to a RFID supervising device of destination object configuration, for example: guarded or supervisor's wrist or ankle on wear a RFID supervising device, in this RFID supervising device, RFID circuit is installed, by RFID technology, realize destination object is guarded timely and effectively, supervised.
But realizing in process of the present utility model, inventor finds:
Cannot locate accurately RFID supervising device based on existing communication system; And the frequent meeting of wrist strap of RFID supervising device is by outside destroy, for example: cut off, thereby RFID supervising device is separated with destination object, now, just cannot destination object be guarded, be supervised based on RFID supervising device; In addition; in the onsite supervision to destination object, monitoring process; control circuit wherein also often can artificially be dismantled and be cracked to RFID supervising device, makes RFID supervising device lose corresponding monitoring function, just cannot continue based on RFID technology, destination object to be guarded, supervised.Therefore, if can not find in time, RFID supervising device is destroyed, will make destination object in runaway condition, thus the potential safety hazard of causing.
Summary of the invention
Embodiment of the present invention technical matters to be solved is: a kind of positioning alarm method and positioning alarm system are provided, realize the accurate location to destination object, and finding when abnormal for the tag card of localizing objects object and alarm, prevent that destination object from causing potential safety hazard in runaway condition.
For solving the problems of the technologies described above, a kind of positioning alarm method that the embodiment of the present invention provides, comprising:
High frequency base station, take Preset Time section as the cycle, receives in the first default moment the locating alarming message that wireless radio frequency discrimination RFID tag card sends with RF-wise, and the locating alarming message receiving is transmitted to control center;
Described control center identifies described locating alarming message;
Described control center is in the time that described locating alarming message comprises localization message, according to the correspondence relationship information between Base Station Identification and the base station location set up in advance, obtain the Base Station Identification of high frequency base station is corresponding described in unique identification the base station location position as described high frequency base station, to described RFID tag card is positioned to the position of described high frequency base station, described localization message comprises the card identification information of RFID tag card described in unique identification;
Described control center, in the time that described locating alarming message comprises warning message, carries out corresponding warning according to the card identification message in described warning message and type of alarm information.
A kind of positioning alarm system that the embodiment of the present invention provides, comprising:
High frequency base station, for take Preset Time section as the cycle, receives in the first default moment the locating alarming message that RFID tag card sends with RF-wise, and the locating alarming message receiving is transmitted to control center;
Control center, the locating alarming message sending for identifying described high frequency base station; In the time that described locating alarming message comprises localization message, according to the correspondence relationship information between Base Station Identification and the base station location set up in advance, obtain the Base Station Identification of high frequency base station is corresponding described in unique identification the base station location position as described high frequency base station, to described RFID tag card is positioned to the position of described high frequency base station, described localization message comprises the card identification information of RFID tag card described in unique identification; In the time that described locating alarming message comprises warning message, carry out corresponding warning according to the card identification message in described warning message and type of alarm information.
The positioning alarm method providing based on the above embodiment of the present invention and positioning alarm system, high frequency base station can send RFID tag card locating alarming message with RF-wise is transmitted to control center, control center is in the time that locating alarming message comprises localization message, according to the correspondence relationship information between Base Station Identification and the base station location set up in advance, RFID tag card is positioned to the position of the high frequency base station that forwards locating alarming message, and in the time that locating alarming message comprises warning message, carry out corresponding warning, for example: carry out RFID tag card and enter Off Limits warning, wrist strap is cut off reports to the police or split warning, compared with prior art, realize the accurate location to RFID tag card, thereby realize the accurate location of the destination object to wearing this RFID tag card, , wrist strap split at RFID tag card cut off, while entering Off Limits, can carry out and alarm, thereby avoid destination object to bring potential safety hazard in runaway condition to adopt an effective measure in time, realizes effective monitoring and supervision to destination object.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the process flow diagram of an embodiment of positioning alarm method of the present invention;
Fig. 2 is a signal coverage areas schematic diagram of high frequency of the present invention base station;
Fig. 3 is the process flow diagram of another embodiment of positioning alarm method of the present invention;
Fig. 4 is the structural representation of an embodiment of positioning alarm system of the present invention;
Fig. 5 is the structural representation of another embodiment of positioning alarm system of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is the process flow diagram of an embodiment of positioning alarm method of the present invention.As shown in Figure 1, the positioning alarm method of this embodiment comprises following flow process:
Step 101, high frequency base station, take Preset Time section as the cycle, receives in the first default moment the locating alarming message that RFID tag card sends with RF-wise, and the locating alarming message receiving is transmitted to control center.
Concrete, Ethernet, Networks of Fiber Communications, WIFI wireless network etc. can be passed through in high frequency base station, and the locating alarming message receiving is transmitted to control center.
Step 102, control center's identification locating alarming message.
Step 103, control center is in the time that locating alarming message comprises localization message, according to the correspondence relationship information between Base Station Identification and the base station location set up in advance, obtain base station location that the Base Station Identification of unique identification high frequency base station the is corresponding position as high frequency base station, to RFID tag card is positioned to the position of high frequency base station, localization message comprises the card identification information of unique identification RFID tag card, for example: card number, the title etc. of RFID tag card.
Step 104, control center, in the time that locating alarming message comprises warning message, carries out corresponding warning according to the card identification message in warning message and type of alarm information.
In the positioning alarm method providing in the above embodiment of the present invention, high frequency base station can send RFID tag card locating alarming message with RF-wise is transmitted to control center, control center is in the time that locating alarming message comprises localization message, according to the correspondence relationship information between Base Station Identification and the base station location set up in advance, RFID tag card is positioned to the position of the high frequency base station that forwards locating alarming message, and in the time that locating alarming message comprises warning message, carry out corresponding warning, for example: carry out RFID tag card and enter Off Limits warning, wrist strap is cut off reports to the police or split warning, compared with prior art, realize the accurate location to RFID tag card, thereby realize the accurate location of the destination object to wearing this RFID tag card, , wrist strap split at RFID tag card cut off, while entering Off Limits, can carry out and alarm, thereby avoid destination object to bring potential safety hazard in runaway condition to adopt an effective measure in time, realizes effective monitoring and supervision to destination object.
In addition, as another embodiment of positioning alarm method of the present invention, control center can be take Preset Time section as the cycle, be identified in the locating alarming message whether the second default moment received the card identification information that comprises above-mentioned RFID tag card, comprise the locating alarming message of the card identification information of above-mentioned RFID tag card if receive, start to carry out the flow process of middle step 102 embodiment illustrated in fig. 1; Otherwise, if receive the locating alarming message of the card identification information that comprises above-mentioned RFID tag card in the second default moment, think that this RFID tag card is abnormal, for example: destroyed, conductively-closed, break down etc., so carry out RFID tag card abnormal alarm, thereby avoid destination object to bring potential safety hazard in runaway condition to adopt an effective measure in time, realize effective monitoring and supervision to destination object.Wherein, the second default moment be specially the first default moment and high frequency base station by locating alarming message be transmitted to the time delay sum of control center.
As another embodiment of positioning alarm method of the present invention, RFID tag card, take Preset Time section as the cycle, sends locating alarming message in the 3rd default moment with RF-wise, and this locating alarming message comprises localization message and/or warning message.Wherein, the first default moment was specially the 3rd default moment and the time delay sum of RFID tag card to high frequency base station transmission locating alarming message.
Wherein, RFID tag card is take Preset Time section as the cycle, generate localization message in the 3rd default moment, in the time that triggering, alert if generates warning message, this warning message comprises card identification message and the type of alarm information of RFID tag card, type of alarm is for example: RFID tag card enters Off Limits scope and reports to the police, the split warning of RFID tag card, and RFID tag card wrist strap is cut off warning.Accordingly, type of alarm information comprises Off Limits warning flag, dismounting warning flag and cuts off warning flag, according to corresponding flag be activated can identify warning message belong to RFID tag card enter Off Limits report to the police, the split warning of RFID tag card, or RFID tag card wrist strap is cut off warning.
Concrete, in RFID tag card, can store a warning message, in this warning message, can comprise and the corresponding multiple warning flags of required type of alarm quantity, for example: Off Limits warning flag, dismounting warning flag, cuts off warning flag, etc.Can be according to preset rules, under normal circumstances, not when trigger alarm event, corresponding warning flag is 0, it is 1 that the flag of reporting to the police accordingly in the time having alert event to trigger activates, for example: when RFID tag card moves within the scope of Off Limits, can activate the Off Limits warning flag in the warning message of storing in RFID tag card according to the low frequency signal within the scope of Off Limits, Off Limits scope is wherein the magnetic field range of the variation of low frequency base station generation, and the magnetic field of variation forms low frequency signal.RFID tag card detects while being disassembled, activates the dismounting warning flag in the warning message of storing in RFID tag card.RFID tag card detects when the wrist strap of RFID tag card is cut off, and activates to cut off warning flag in the warning message of storage in RFID tag card.Like this, control center, according to preset rules, is whether 0 or 1 identification has corresponding alert event to occur according to corresponding warning flag.
Concrete, identifying in the following way RFID tag card moves within the scope of Off Limits: RFID tag card can comprise the LC antiresonant circuit, tank circuit and the single-chip microcomputer that connect successively, in the time that RFID tag card moves within the scope of Off Limits, in the magnetic field range producing in low frequency base station, telefault in the one LC antiresonant circuit can produce an induction electromotive force, that is: the energy conversion in the magnetic field that a LC antiresonant circuit produces low frequency base station has become electric energy; Electric energy corresponding to induction electromotive force that tank circuit storage the one LC antiresonant circuit produces, along with the increase of storage of electrical energy energy, the voltage on tank circuit also can raise; Whether whether single-chip microcomputer is greater than predetermined threshold value by the magnitude of voltage detecting on tank circuit, can identify this RFID tag card and enter within the scope of Off Limits.
Whether whether dismantle RFID tag card, screw is turned in the screw top that must use an instrument to stretch into this RFID tag card of encapsulation, can have foreign matter to identify this RFID tag card by an infrared signal testing circuit detection screw top and be disassembled.
Conducting wire in the wrist strap of RFID tag card can be connected in the RFID control circuit of RFID tag card, for example: be connected between input end and working power or ground end of single-chip microcomputer in RFID control circuit, be connected between two input/output terminals of single-chip microcomputer, etc., when wrist strap is cut off, whether the magnitude of voltage in conducting wire can raise, whether be greater than the wrist strap that predeterminated voltage value judges RFID tag card and cut off by detecting magnitude of voltage on conducting wire.
In the positioning alarm method of the various embodiments described above of the present invention, can be on high frequency base station the little directional antenna in signalization overlay area and the large omnidirectional antenna of signal coverage areas, on different high frequencies base station, the signal coverage areas of directional antenna is not overlapping, and on different high frequencies base station, the signal coverage areas of omnidirectional antenna is overlapping.As shown in Figure 2, be a signal coverage areas schematic diagram of high frequency of the present invention base station, in Fig. 2,201 is the position of high frequency base station, 202 signal coverage areas that are directional antenna, 203 signal coverage areas that are omnidirectional antenna.Accordingly, in step 101, high frequency base station specifically receives localization message with directional antenna, receives warning message with omnidirectional antenna, then the warning message that localization message directional antenna being received and omnidirectional antenna receive, as locating alarming message, sends to control center.Wherein, on high frequency base station, the quantity of directional antenna can be multiple, and its quantity and density specifically can be according to positioning precision adjustment, and positioning precision is higher, quantity and the density requirements of directional antenna are larger, as long as the signal coverage areas of different directional antennas is not overlapping.
The positioning alarm method of the embodiment of the present invention adopts grid mode to realize the location to RFID tag card.Grid is less, and positioning precision is higher.Therefore, high frequency base station is little to the identified region of localization message is the assurance that positioning precision is high.High frequency base station covers to monitor the warning message of RFID tag card in guarded region by guarded region is carried out to comprehensive signal.In guarded region, high frequency base station is carried out signal by omnidirectional antenna and is covered comprehensively, during when the damage of RFID tag card, conductively-closed, by artificial destruction, can know in time and report to the police accordingly.In the embodiment of the present invention, high frequency base station is used the mode of directional antenna and omnidirectional antenna combination, has realized that identified region is little to be covered with signal comprehensively.Directional antenna good directionality, that is: in the region of a direction, signal covers by force, and in the region of other direction, signal covers poor or does not have signal to cover, and lower receiving sensitivity can be set, and has controlled the decipherment distance of localization message.Omniantenna, that is: in region in any direction, signal just covers better, and higher receiving sensitivity can be set, and signal cover is large, realizes the whole receptions to warning message.
Fig. 3 is the process flow diagram of another embodiment of positioning alarm method of the present invention.As shown in Figure 3, the positioning alarm method of this embodiment comprises following flow process:
Step 301, RFID tag card generates warning message in the time that alert if triggers, this warning message comprises card identification message and the type of alarm information of RFID tag card, and take Preset Time section as the cycle, generate localization message in the 3rd default moment, then using warning message and localization message as warning localization message, send with RF-wise.
Step 302, high frequency base station, take Preset Time section as the cycle, receives in the first default moment the locating alarming message that RFID tag card sends with RF-wise, and the locating alarming message receiving is transmitted to control center.
Step 303, control center is take Preset Time section as the cycle, be identified in the locating alarming message whether the second default moment received the card identification information that comprises above-mentioned RFID tag card, comprise the locating alarming message of the card identification information of above-mentioned RFID tag card if receive, execution step 304; Otherwise, if do not receive the locating alarming message of the card identification information that comprises above-mentioned RFID tag card, execution step 307 in the second default moment.
Step 304, control center's identification locating alarming message.
Step 305, control center is in the time that locating alarming message comprises localization message, according to the correspondence relationship information between Base Station Identification and the base station location set up in advance, obtain base station location that the Base Station Identification of unique identification high frequency base station the is corresponding position as high frequency base station, to RFID tag card is positioned to the position of high frequency base station, localization message comprises the card identification information of unique identification RFID tag card, for example: card number, the title etc. of RFID tag card.
Step 306, control center, in the time that locating alarming message comprises warning message, carries out corresponding warning according to the card identification message in warning message and type of alarm information.Afterwards, no longer carry out the follow-up flow process of the present embodiment.
Step 307, control center thinks that this RFID tag card is abnormal, for example: destroyed, conductively-closed, break down etc., so carry out RFID tag card abnormal alarm.
In addition, in the positioning alarm method of the various embodiments described above of the present invention, RFID tag card can be according to default cipher mode, comprise default cryptographic algorithm and preset-key, encrypt locating alarming message, and the locating alarming message of encryption is sent to high frequency base station with RF-wise, the locating alarming message of this encryption comprises the localization message of encryption and/or the warning message of encryption.Accordingly, by step 101, after the locating alarming message of encryption is transmitted to control center by high frequency base station, control center is according to encrypting the manner of decryption of mating with default cipher mode, comprise default decipherment algorithm and preset-key, the locating alarming message of encrypting is decrypted, obtains locating alarming message, then start to perform step the operation of 102 control center's identification locating alarming message.
Fig. 4 is the structural representation of an embodiment of positioning alarm system of the present invention.The positioning alarm system of this embodiment can be used in the present invention the flow process of above-mentioned each positioning alarm method embodiment.As shown in Figure 4, it comprises high frequency base station 1 and control center 2.
Wherein, high frequency base station 1, for take Preset Time section as the cycle, receives in the first default moment the locating alarming message that RFID tag card sends with RF-wise, and the locating alarming message receiving is transmitted to control center.
The locating alarming message that control center 2 sends for identifying high frequency base station 1; When the locating alarming message sending in high frequency base station 1 comprises localization message, according to the correspondence relationship information between Base Station Identification and the base station location set up in advance, obtain base station location that the Base Station Identification of unique identification high frequency base station the is corresponding position as this high frequency base station 1, to RFID tag card is positioned to the position of this high frequency base station 1.Localization message wherein comprises the card identification information of unique identification RFID tag card; In the time that locating alarming message comprises warning message, carry out corresponding warning according to the card identification message in warning message and type of alarm information.
In the positioning alarm system that the above embodiment of the present invention provides, high frequency base station can send RFID tag card locating alarming message with RF-wise is transmitted to control center, control center is in the time that locating alarming message comprises localization message, according to the correspondence relationship information between Base Station Identification and the base station location set up in advance, RFID tag card is positioned to the position of the high frequency base station that forwards locating alarming message, and in the time that locating alarming message comprises warning message, carry out corresponding warning, for example: carry out RFID tag card and enter Off Limits warning, wrist strap is cut off reports to the police or split warning, realize the accurate location to RFID tag card, thereby realize the accurate location of the destination object to wearing this RFID tag card, , wrist strap split at RFID tag card cut off, while entering Off Limits, can carry out and alarm, thereby avoid destination object to bring potential safety hazard in runaway condition to adopt an effective measure in time, realizes effective monitoring and supervision to destination object.
In addition, as another embodiment of positioning alarm system of the present invention, control center 2 also, for take Preset Time section as the cycle, in the time that the second default moment did not receive the localization message of RFID tag card, carries out RFID tag card abnormal alarm.
Fig. 4 is the structural representation of an embodiment of positioning alarm system of the present invention.Compared with the embodiment shown in Fig. 4, the positioning alarm system of this embodiment also comprises RFID tag card 3, for take Preset Time section as the cycle, send locating alarming message in the 3rd default moment with RF-wise, this locating alarming message comprises localization message and/or warning message.
As another embodiment of positioning alarm system of the present invention, in the embodiment shown in fig. 4, RFID tag card 3 can also be used for generating warning message in the time that alert if triggers, and this warning message comprises card identification message and the type of alarm information of RFID tag card.Type of alarm information wherein comprises Off Limits warning flag, dismounting warning flag and cuts off warning flag.For example: RFID tag card 3 is specifically in the time moving within the scope of Off Limits, activate the Off Limits warning flag in the warning message of these RFID tag card 3 interior storages according to the low frequency signal within the scope of Off Limits, Off Limits scope is wherein the magnetic field range of the variation of low frequency base station generation, and the magnetic field of this variation forms low frequency signal; Detecting while being disassembled, activate the dismounting warning flag in the warning message of these RFID tag card 3 interior storages; In the time that the wrist strap that this RFID tag card 3 detected is cut off, activate and cut off warning flag in the warning message of these RFID tag card 3 interior storages.
As another embodiment of positioning alarm system of the present invention, in the positioning alarm system of the various embodiments described above of the present invention, on high frequency base station 1, can be provided with the omnidirectional antenna that directional antenna that signal coverage areas is little and signal coverage areas are large, on different high frequencies base station 1, the signal coverage areas of directional antenna is not overlapping, and on different high frequencies base station, the signal coverage areas of omnidirectional antenna is overlapping.Accordingly, high frequency base station 1 specifically receives localization message with directional antenna, receives warning message with omnidirectional antenna, and the warning message that the localization message that directional antenna is received and omnidirectional antenna receive is as locating alarming message, sends to control center 2.
The positioning alarm system of the embodiment of the present invention adopts grid mode to realize the location to RFID tag card 3.Grid is less, and positioning precision is higher.Therefore, high frequency base station 1 is little to the identified region of localization message is the assurance that positioning precision is high.Positioning alarm system is monitored the warning message of RFID tag card 3 in guarded region, therefore, need to carry out comprehensive signal covering to guarded region.In the embodiment of the present invention, high frequency base station 1 is used the mode of directional antenna and omnidirectional antenna combination, realizes the little and signal of identified region and covers comprehensively.In guarded region, high frequency base station 1 is carried out signal by omnidirectional antenna and is covered comprehensively, during when 3 damages of RFID tag card, conductively-closed, by artificial destruction, can know in time and report to the police accordingly.Directional antenna good directionality, can arrange lower receiving sensitivity, has controlled the decipherment distance of localization message.Omniantenna, can arrange higher receiving sensitivity, and signal cover is large, realizes the whole receptions to warning message.
Further, as an also embodiment of positioning alarm system of the present invention, in the positioning alarm system of the various embodiments described above of the present invention, RFID tag card 3 is also for according to default cipher mode, comprise default cryptographic algorithm and preset-key, localization message and/or warning message are encrypted, corresponding, locating alarming message encryption being obtained with RF-wise sends to high frequency base station 2, and the locating alarming message of this encryption comprises the localization message of encryption and/or the warning message of encryption.Accordingly, control center 2 also, for according to encrypting the manner of decryption of mating with default cipher mode, comprises default decipherment algorithm and preset-key, and the locating alarming message of encrypting is decrypted, and obtains locating alarming message.
In this instructions, each embodiment all adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, same or analogous part cross-references between each embodiment.For system embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, relevant part is referring to the part explanation of embodiment of the method.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can complete by the relevant hardware of programmed instruction, aforesaid program can be stored in a computer read/write memory medium, this program, in the time carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
The embodiment of the present invention can be positioned at RFID tag card the position of the high frequency base station that forwards locating alarming message, and in the time that locating alarming message comprises warning message, carry out corresponding warning, for example: carry out RFID tag card and enter that Off Limits is reported to the police, wrist strap cut off warning, split warning or abnormal alarm, compared with prior art, realize the accurate location to RFID tag card, thereby realized the accurate location of the destination object to wearing this RFID tag card; , wrist strap split at RFID tag card cut off, entered Off Limits, occur when abnormal, can carry out and alarm, thereby avoid destination object to bring potential safety hazard in runaway condition to adopt an effective measure in time, realize effective monitoring and supervision to destination object.
Description of the invention provides for example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present invention and practical application, thereby and makes those of ordinary skill in the art can understand the present invention's design to be suitable for the various embodiment with various modifications of special-purpose.
Claims (10)
1. a positioning alarm method, is characterized in that, comprising:
High frequency base station, take Preset Time section as the cycle, receives in the first default moment the locating alarming message that wireless radio frequency discrimination RFID tag card sends with RF-wise, and the locating alarming message receiving is transmitted to control center;
Described control center identifies described locating alarming message;
Described control center is in the time that described locating alarming message comprises localization message, according to the correspondence relationship information between Base Station Identification and the base station location set up in advance, obtain the Base Station Identification of high frequency base station is corresponding described in unique identification the base station location position as described high frequency base station, to described RFID tag card is positioned to the position of described high frequency base station, described localization message comprises the card identification information of RFID tag card described in unique identification;
Described control center, in the time that described locating alarming message comprises warning message, carries out corresponding warning according to the card identification information in described warning message and type of alarm information; Described warning message comprises card identification information and the type of alarm information of described RFID tag card, and described type of alarm information comprises Off Limits warning flag, dismounting warning flag and cuts off warning flag; Described RFID tag card generates in the following way warning message in the time that alert if triggers:
When described RFID tag card moves within the scope of Off Limits, activate the Off Limits warning flag in the warning message of storing in described RFID tag card according to the low frequency signal within the scope of described Off Limits, described Off Limits scope is the magnetic field range of the variation of low frequency base station generation, and the magnetic field of described variation forms described low frequency signal;
Described RFID tag card detects while being disassembled, activates the dismounting warning flag in the warning message of storing in described RFID tag card;
Described RFID tag card detects when the wrist strap of described RFID tag card is cut off, and activates to cut off warning flag in the warning message of storage in described RFID tag card.
2. method according to claim 1, is characterized in that, also comprises:
Described control center, take Preset Time section as the cycle, in the time that the second default moment did not receive the locating alarming message of the card identification information that comprises described RFID tag card, carries out described RFID tag card abnormal alarm.
3. method according to claim 2, is characterized in that, also comprises:
Described RFID tag card, take Preset Time section as the cycle, sends described locating alarming message in the 3rd default moment with RF-wise, and described locating alarming message comprises described localization message and/or described warning message.
4. according to the method described in claims 1 to 3 any one, it is characterized in that, on described high frequency base station, be provided with the omnidirectional antenna that directional antenna that signal coverage areas is little and signal coverage areas are large, on different high frequencies base station, the signal coverage areas of directional antenna is not overlapping, and on different high frequencies base station, the signal coverage areas of omnidirectional antenna is overlapping;
Described high frequency base station specifically receives described localization message with directional antenna, receives described warning message with omnidirectional antenna;
Described high frequency base station is transmitted to control center by the locating alarming message receiving and is specially: the warning message that the localization message that described high frequency base station receives directional antenna and omnidirectional antenna receive, as locating alarming message, sends to described control center.
5. method according to claim 4, it is characterized in that, the locating alarming message that described high frequency base station receives is specially the locating alarming message that described RFID tag card is encrypted according to default cipher mode, and the locating alarming message of described encryption comprises the localization message of encryption and/or the warning message of encryption;
After the locating alarming message of encryption is transmitted to control center by described high frequency base station, also comprise: described control center is according to encrypting the manner of decryption of mating with described default cipher mode, the locating alarming message of encrypting is decrypted, obtains described locating alarming message.
6. a positioning alarm system, is characterized in that, comprising:
High frequency base station, for take Preset Time section as the cycle, receives in the first default moment the locating alarming message that RFID tag card sends with RF-wise, and the locating alarming message receiving is transmitted to control center;
Control center, the locating alarming message sending for identifying described high frequency base station; In the time that described locating alarming message comprises localization message, according to the correspondence relationship information between Base Station Identification and the base station location set up in advance, obtain the Base Station Identification of high frequency base station is corresponding described in unique identification the base station location position as described high frequency base station, to described RFID tag card is positioned to the position of described high frequency base station, described localization message comprises the card identification information of RFID tag card described in unique identification; In the time that described locating alarming message comprises warning message, carry out corresponding warning according to the card identification information in described warning message and type of alarm information;
RFID tag card, for generate warning message in the time that alert if triggers, described warning message comprises card identification information and the type of alarm information of described RFID tag card, and described type of alarm information comprises Off Limits warning flag, dismounting warning flag and cuts off warning flag; Described RFID tag card is specifically in the time moving within the scope of Off Limits, activate the Off Limits warning flag in the warning message of storing in described RFID tag card according to the low frequency signal within the scope of described Off Limits, described Off Limits scope is the magnetic field range of the variation of low frequency base station generation, and the magnetic field of described variation forms described low frequency signal; Detecting while being disassembled, activate the dismounting warning flag in the warning message of storage in described RFID tag card; In the time that the wrist strap that described RFID tag card detected is cut off, activate and cut off warning flag in the warning message of storage in described RFID tag card.
7. system according to claim 6, it is characterized in that, described control center also, for take Preset Time section as the cycle, in the time that the second default moment did not receive the locating alarming message of the card identification information that comprises described RFID tag card, carries out described RFID tag card abnormal alarm.
8. system according to claim 7, it is characterized in that, described RFID tag card, also for take Preset Time section as the cycle, send described locating alarming message in the 3rd default moment with RF-wise, described locating alarming message comprises described localization message and/or described warning message.
9. according to the system described in claim 6 to 8 any one, it is characterized in that, on described high frequency base station, be provided with the omnidirectional antenna that directional antenna that signal coverage areas is little and signal coverage areas are large, on different high frequencies base station, the signal coverage areas of directional antenna is not overlapping, and on different high frequencies base station, the signal coverage areas of omnidirectional antenna is overlapping;
Described high frequency base station specifically receives described localization message with directional antenna, receive described warning message with omnidirectional antenna, and the warning message that the localization message that directional antenna is received and omnidirectional antenna receive is as locating alarming message, sends to described control center.
10. system according to claim 9, it is characterized in that, described RFID tag card is also for being encrypted localization message and/or warning message according to default cipher mode, and locating alarming message encryption being obtained with RF-wise sends to described high frequency base station, the locating alarming message of described encryption comprises the localization message of encryption and/or the warning message of encryption;
Described control center also, for according to encrypting the manner of decryption of mating with described default cipher mode, is decrypted the locating alarming message of encrypting, and obtains described locating alarming message.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI523326B (en) * | 2012-08-10 | 2016-02-21 | China Steel Corp | A wireless identification tag with dual radiation field type and an object search system using the same |
| CN103065411A (en) * | 2012-11-27 | 2013-04-24 | 苏州易寻传感网络科技有限公司 | Security and protection system |
| CN104952228B (en) * | 2015-05-29 | 2018-07-06 | 小米科技有限责任公司 | Anti-theft protection open method, apparatus and system |
| CN105303742B (en) * | 2015-08-03 | 2016-10-05 | 山东德昶安防科技有限公司 | A kind of fence and implementation method |
| CN106845607B (en) * | 2016-12-30 | 2023-12-08 | 杭州思创汇联科技有限公司 | Narrow wave beam RFID circular polarization antenna system |
| CN107992911B (en) * | 2017-11-24 | 2019-12-06 | 燕山大学 | pressure detection method |
| CN110856105A (en) * | 2019-11-18 | 2020-02-28 | 四川光发科技有限公司 | Accurate positioning device and system based on mobile communication |
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