CN101782456B - Method and system for remotely detecting working state of monitor - Google Patents
Method and system for remotely detecting working state of monitor Download PDFInfo
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- CN101782456B CN101782456B CN2009101051480A CN200910105148A CN101782456B CN 101782456 B CN101782456 B CN 101782456B CN 2009101051480 A CN2009101051480 A CN 2009101051480A CN 200910105148 A CN200910105148 A CN 200910105148A CN 101782456 B CN101782456 B CN 101782456B
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Abstract
The invention relates to a method and a system for remotely detecting the working state of a monitor; the method comprises the following steps that: S1: light spots which are changed in a light and dark cycle are formed at appropriate positions on a monitor screen; and S2: electric signals which reflect the working status of the monitor screen are produced by detecting the darkness of light spot signals, and sent to a remote terminal. The invention produces the signals which reflect the working status of the screen and sends the signals to the remote terminal by detecting the darkness of the light spot signals with a photosensitive device by forming the light spots which are changed in the light and dark cycle at positions on the monitor screen which do not affect normal image viewing, and can remotely monitor the working status of the monitor in real time through the method.
Description
Technical field
The present invention relates to display, more particularly, relate to a kind of method and system of remotely detecting working state of monitor.
Background technology
In actual life, we AT STATION, many places such as harbour, airport, market, ATM and various open air/indoor all can see having countless displays working without cessation.These thousands of device distribution are in each corner in city, but whom has know how much have in these equipment is in operate as normal, and how much is have again to be in " strike " state? We can say up to the present also do not have which supvr or user to know.Be not the duty that the supvr does not wonder display,, do not seem simple question and up to the present find suitable way to solve this really because this relates to gray prestige and commercial interest.We once thought various detection schemes for this reason; Such as input signal that detects Overall Power Consumption, detector switch supply voltage, detected image card signal, sensed signal sources or the like, but all whether operate as normal fails to achieve one's goal because of these detection schemes all can not finally be confirmed equipment.
In accomplish refuelling station's explosion-proof advertisement machine equipment development process, the user has also proposed the whether application requirements of operate as normal of telemonitoring display, and we have finally found a kind of detection scheme of the best on the basis to this problem thinking in the past.
Summary of the invention
The technical matters that the present invention will solve is, to the above-mentioned defective that can not remotely detecting working state of monitor of prior art, a kind of method and system of remotely detecting working state of monitor is provided.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of method of remotely detecting working state of monitor, may further comprise the steps:
S1, on the suitable position of indicator screen, form the hot spot that the bright dark cycle changes;
S2, through detecting the light and shade of said hot spot signal, the electric signal that produces reflection indicator screen duty is sent to remote terminal.
In method of the present invention, said step S1 further comprises through the mode of software or hardware mode and on the suitable position of indicator screen, forms the hot spot that the bright dark cycle changes.
In method of the present invention; The mode that said hardware forms hot spot comprises takes out row/field sync signal from the vision signal of display input, with this signal be benchmark produce some frequencys multiplication through locking the clock signal of phase, again according to the spot size that will form; Form a row composite pulse of respective widths; To carrying out gating, this signal is blended in the signal of input again, on preposition, forms the hot spot that the bright dark cycle changes with corresponding two divided-frequency signal of bright dark cycle.
In method of the present invention, the position that said indicator screen is suitable is the position that does not influence the normal viewing image and can reflect whole screen work state.
In method of the present invention, the said position that does not influence the normal viewing image and can reflect whole screen work state comprises the lower right corner, the lower left corner, the upper right corner, the upper left corner of screen.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of system of remotely detecting working state of monitor, it comprises:
The image card primary processor is used on the suitable position of indicator screen, forming the hot spot that the bright dark cycle changes;
The photosensitive device that corresponding said hot spot signal is provided with is used for being sent to remote terminal through the light and shade that detects said hot spot signal with the electric signal that produces reflection indicator screen duty.
In system of the present invention, said image card primary processor is further used on the suitable position of indicator screen, forming the hot spot that the bright dark cycle changes through the mode of software or hardware mode.
In system of the present invention; Said image card primary processor is further used for from the vision signal of display input, taking out row/field sync signal, with this signal be benchmark produce some frequencys multiplication through locking the clock signal of phase, again according to the spot size that will form; Form a row composite pulse of respective widths; To carrying out gating, this signal is blended in the signal of input again, on preposition, forms the hot spot that the bright dark cycle changes with corresponding two divided-frequency signal of bright dark cycle.
In system of the present invention, the position that said indicator screen is suitable is the position that does not influence the normal viewing image and can reflect whole screen work state.
In system of the present invention, the said position that does not influence the normal viewing image and can reflect whole screen work state comprises the lower right corner, the lower left corner, the upper right corner, the upper left corner of screen.
The method and system of the remotely detecting working state of monitor of embodiment of the present invention; Has following beneficial effect: form the hot spot that the bright dark cycle changes through the position that on indicator screen, does not influence the normal viewing image; The signal that the light and shade that detects the hot spot signal through photosensitive device produces reflection screen work state is sent to remote terminal, can long-range duty to display monitor in real time in this manner.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is the system chart of remotely detecting working state of monitor of the present invention;
Fig. 2 is the method flow diagram of remotely detecting working state of monitor of the present invention;
Fig. 3 is the system chart of one embodiment of the present of invention.
Embodiment
In order to make technical matters to be solved by this invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Accomplish the quality of remote detection display device, most critical be to solve following problem: A) to find suitable detection position; B) to confirm suitable detection signal; C) method of simple formation, processing and this signal of transmission to be arranged.
As shown in Figure 1, the system of remotely detecting working state of monitor of the present invention has been shown among the figure.System of the present invention mainly comprises image card primary processor and photosensitive device.The image card primary processor is used on the suitable position of indicator screen, forming the hot spot that the bright dark cycle changes.The photosensitive device of corresponding hot spot signal setting is used for being sent to remote terminal through detecting the light and shade of hot spot signal with this electric signal that produces reflection indicator screen duty.
In several described in background technology technology, each detect position and detected parameters all can only reflection equipment in the local problem of one or several parts, most important equipment parts (being display screen) but do not comprise wherein.Characteristics of the present invention will detect the position exactly and move on to display screen from local circuit, if the quality that can judge display screen just can final judgment device whether in operate as normal.Preferably, the final detection position of confirming of the present invention is at the upper left corner 1cm of screen
2The place.Equally, also can on other several angles of display screen,, also can think simultaneously as required as long as this check point all is normal with regard to decidable monoblock screen normally because these positions can not influence the normal viewing image as check point.
Fixed on the screen since detect the position, detection means just can only be photosensitive device (can not use ccd video camera certainly, because cost is too high).The present invention adopts the photosensitive head (digital light dependent sensor TSL2561T or similar photosensitive device) that can directly export digital signal that the bright dark change-detection of the hot spot on the screen is come out.But bright on the screen secretly is that therefore this simple method can not be as practical application according to institute's images displayed content random variation.For addressing this problem; The present invention is employed on the above-mentioned detection position earlier method with software (also the available hardware method realizes certainly) and forms the hot spot of bright dark cycle variation (conversion of this hot spot does not receive the influence of picture material; The bright dark cycle is about 1 second), detect this signal with photosensitive device again.Because therefore the quality of this unique this display device of reflection of hot spot ability that flashes is optimal scheme with this marking signal as the equipment quality.
According to the present invention, mode that the image card primary processor can be through software or hardware mode form the hot spot that the bright dark cycle changes on the suitable position of indicator screen.Above-mentioned hot spot signal is provided by the image card processor, and this image card processor decapacitation produces outside hot spot signal, can also detect the hot spot signal, system switching machine, signal working state monitoring, terminal address are set, terminal address shows or the like.In one embodiment of the invention, two I/O pins of the clock signal SCL of digital light dependent sensor TSL2561T output and the data-signal SDA primary processor (model is SPV7100A_LQFP256) of directly delivering to image card.Through the RS232/RS485 interface conversion that is provided with on the image card, can be located at long-range computer server and realize the telecommunication with central machine room through network.
Realize forming in the mode of hot spot at hardware; From the vision signal of display input, take out row/field sync signal, with this signal be benchmark produce some frequencys multiplication through locking the clock signal of phase, again according to the spot size that will form; Form a row composite pulse of respective widths; To carrying out gating, this signal is blended in the signal of input again, on preposition, forms the hot spot that the bright dark cycle changes with corresponding two divided-frequency signal of bright dark cycle.
As shown in Figure 2, the method for remotely detecting working state of monitor of the present invention has been shown among the figure.At first the image card processor forms the hot spot that the bright dark cycle changes on the suitable position of indicator screen, detects the light and shade of hot spot signal then through photosensitive device, is sent to remote terminal with this electric signal that produces reflection indicator screen duty.On the suitable position of indicator screen, forming the hot spot that the bright dark cycle changes can carry out through the mode or the hardware mode of software.The mode that hardware forms hot spot comprises taking-up row/field sync signal from the vision signal of display input; With this signal is the clock signal through the lock phase that benchmark produces some frequencys multiplication; Again according to the spot size that will form, form the row composite pulse of respective widths, again to carrying out gating with corresponding two divided-frequency signal of bright dark cycle; This signal is blended in the signal of input, on preposition, forms the hot spot that the bright dark cycle changes.In addition, the position that the aforementioned display device screen is suitable is the position that does not influence the normal viewing image and can reflect whole screen work state, preferably includes the lower right corner, the lower left corner, the upper right corner, the upper left corner of screen.
As shown in Figure 3, be the system chart of one embodiment of the present of invention, promptly be applied in refuelling station's media play system.Utilize the method and system of remotely detecting working state of monitor of the present invention, through the RS232/RS485 interface conversion that is provided with on the image card, can be located at long-range computer server and realize the telecommunication with central machine room through network.
Wherein, communications protocol is following:
Baud rate: 115200
Start bit: 1Bit
Data bit: 8Bit
Position of rest: 1Bit
Check bit: do not have
Current control: do not have
Wherein, data frame format is following:
| Frame | Frame head | Order | Destination address | Data | Verification |
| Byte number | 2 | 1 | 2 | 2 | 1 |
| Data | 0xAA55 | CMD | Addr | Data | CRC |
1.CRC＝CMD?XOR?AddrL?XOR?AddrH?XOR?DataL?XOR?DataH
2.Addr: acknowledgement command address (32768-65535)=terminating machine address+0x8000
3.CMD: acknowledgement command=master control order+1.
4.Data: operate successfully--return data 0x8686, operation failure--return data 0x0000 (monitoring status command retrieval system state)
Wherein, command function is following:
Start/shutdown
| CMD | DATA | |
| Start | 0xC0 | 0xF00F |
| Shutdown | 0xC0 | 0x0FF0 |
For example: open No. 23 terminals and operate successfully
Send: 0x55 0xAA 0xC0 0x17 0x00 0x0F 0xF0 0x28
Reply: 0x55 0xAA 0xC1 0x17 0x80 0x86 0x86 0x56
The monitoring state
| CMD | DATA |
| 0xC2 | 0x03C0 |
Return the SOT state of termination
Current Source state (Low Byte)
System
For example: monitor No. 23 terminal operating status (the PC passage has signal)
SND：0x55?0xAA?0xC2?0x17?0x00?0xC0?0x03?0x16
RCV：0x55?0xAA?0xC3?0x17?0x80?0x00?0xC3?0x97
Broadcasting start/shutdown (no response frame)
| CMD | DATA | |
| Start | 0xC4 | 0xF00F |
| Shutdown | 0xC4 | 0x0FF0 |
For example: turn off whole terminals
SND：0x55?0xAA?0xC4?0xFF?0xFF?0xF0?0x0F?0x3B
RCV：None
Terminal address is set
Terminal address is set can adopt following dual mode:
(1) sending order sets
| CMD | Addr | DATA |
| 0xC6 | 0xFFFF | Addr(0-32767) |
Example: the address that the setting bus attendes institute's connecting terminal is 23
SND：0x55?0xAA?0xC6?0xFF?0xFF?0x17?0x00?0xD1
RCV：0x55?0xAA?0xC7?0x17?0x80?0x86?0x86?0x50
(2) factory's menu is set
Operating remote controller:
Press remote-controled digital key 7100 and get into factory's menu, get into General Setting item
Address (0-32767) is set
The display terminal address
Show all terminal addresss
The demonstration time: 5 seconds
| CMD | Addr | DATA |
| 0xC8 | 0xffff | Addr(0-32767) |
For example: show No. 23 the terminal subsystem address
SND：0x55?0xAA?0xC8?0xff?0xff?0x17?0x00?0xdf
RCV：0x55?0xAA?0xC9?0x17?0x80?0x86?0x86?0x5e
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, any modification of being done within every spirit of the present invention and the principle, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the method for a remotely detecting working state of monitor is characterized in that, may further comprise the steps:
S1, on the suitable position of indicator screen, form the hot spot that the bright dark cycle changes through the image card primary processor;
S2, detect the light and shade of said hot spot signal through photosensitive device, the electric signal that produces reflection indicator screen duty is sent to remote terminal;
The generation type of hot spot described in the said step S1 comprises through the mode of software or hardware mode and on the suitable position of indicator screen, forms the hot spot that the bright dark cycle changes;
The mode that said hardware forms hot spot comprises taking-up line synchronizing signal and field sync signal from the vision signal of input display; And with this line synchronizing signal and field sync signal be benchmark produce some frequencys multiplication through mutually clock signal of lock; Again according to the spot size that will form, form the row composite pulse of respective widths, again to carrying out gating with corresponding two divided-frequency signal of bright dark cycle; This signal is blended in the signal of input, on preposition, forms the hot spot that the bright dark cycle changes.
2. method according to claim 1 is characterized in that, the position that said indicator screen is suitable is the position that does not influence the normal viewing image and can reflect whole screen work state.
3. method according to claim 2 is characterized in that, the said position that does not influence the normal viewing image and can reflect whole screen work state comprises the lower right corner, the lower left corner, the upper right corner, the upper left corner of screen.
4. the system of a remotely detecting working state of monitor is characterized in that, comprising:
The image card primary processor is used on the suitable position of indicator screen, forming the hot spot that the bright dark cycle changes;
The photosensitive device that corresponding said hot spot signal is provided with is used for being sent to remote terminal through the light and shade that detects said hot spot signal with the electric signal that produces reflection indicator screen duty;
The mode that said image card primary processor forms hot spot forms the hot spot that the bright dark cycle changes for the mode through software or hardware mode on the suitable position of indicator screen;
Said image card primary processor is from the vision signal of input display, to take out line synchronizing signal and field sync signal through the mode that hardware forms hot spot; And with this line synchronizing signal and field sync signal be benchmark produce some frequencys multiplication through mutually clock signal of lock; Again according to the spot size that will form; Form a row composite pulse of respective widths; To carrying out gating, this signal is blended in the signal of input again, on preposition, forms the hot spot that the bright dark cycle changes with corresponding two divided-frequency signal of bright dark cycle.
5. system according to claim 4 is characterized in that, the position that said indicator screen is suitable is the position that does not influence the normal viewing image and can reflect whole screen work state.
6. system according to claim 5 is characterized in that, the said position that does not influence the normal viewing image and can reflect whole screen work state comprises the lower right corner, the lower left corner, the upper right corner, the upper left corner of screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101051480A CN101782456B (en) | 2009-01-19 | 2009-01-19 | Method and system for remotely detecting working state of monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101051480A CN101782456B (en) | 2009-01-19 | 2009-01-19 | Method and system for remotely detecting working state of monitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101782456A CN101782456A (en) | 2010-07-21 |
| CN101782456B true CN101782456B (en) | 2012-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101051480A Expired - Fee Related CN101782456B (en) | 2009-01-19 | 2009-01-19 | Method and system for remotely detecting working state of monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101782456B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI476554B (en) * | 2013-03-22 | 2015-03-11 | Pegatron Corp | Monitoring system |
| CN104238819B (en) * | 2014-09-16 | 2017-11-14 | 上海维服信息技术有限公司 | The detection method and system of display screen state in mobile terminal |
| CN104408556B (en) * | 2014-11-08 | 2018-01-05 | 西安电子科技大学 | Remote units test installation system based on Android mobile terminal |
| CN106060126B (en) * | 2016-05-24 | 2019-03-19 | 众安在线财产保险股份有限公司 | A kind of the remote auto recognition methods and system of screen of intelligent device state |
| CN107688345B (en) * | 2017-08-29 | 2019-04-19 | 平安科技（深圳）有限公司 | Screen state automatic detecting machine device people, method and computer readable storage medium |
| CN111736512B (en) * | 2020-07-23 | 2020-11-27 | 南京晓庄学院 | Automatic wireless communication system and communication method thereof |
| CN114655012A (en) * | 2022-03-14 | 2022-06-24 | 惠州市华阳多媒体电子有限公司 | Control method, device and system for vehicle-mounted HUD and readable storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4586822A (en) * | 1983-06-21 | 1986-05-06 | Nippon Kogaku K. K. | Inspecting method for mask for producing semiconductor device |
| CN1588459A (en) * | 2004-09-23 | 2005-03-02 | 中国工商银行 | Method and system for real time early warning monitoring to bank ATM terminal safety hidden peril |
| CN2812024Y (en) * | 2005-03-29 | 2006-08-30 | 郑州西部电子技术有限公司 | Remote automatic detection system for electric energy metering device |
-
2009
- 2009-01-19 CN CN2009101051480A patent/CN101782456B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4586822A (en) * | 1983-06-21 | 1986-05-06 | Nippon Kogaku K. K. | Inspecting method for mask for producing semiconductor device |
| CN1588459A (en) * | 2004-09-23 | 2005-03-02 | 中国工商银行 | Method and system for real time early warning monitoring to bank ATM terminal safety hidden peril |
| CN2812024Y (en) * | 2005-03-29 | 2006-08-30 | 郑州西部电子技术有限公司 | Remote automatic detection system for electric energy metering device |
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| Publication number | Publication date |
|---|---|
| CN101782456A (en) | 2010-07-21 |
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