CN205582173U - Multichannel laser anti -theft device - Google Patents
Multichannel laser anti -theft device Download PDFInfo
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- CN205582173U CN205582173U CN201620344534.0U CN201620344534U CN205582173U CN 205582173 U CN205582173 U CN 205582173U CN 201620344534 U CN201620344534 U CN 201620344534U CN 205582173 U CN205582173 U CN 205582173U
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Abstract
The utility model relates to a multichannel laser anti -theft device, including laser transmitting module, laser receiving module and warning primary module, laser transmitting module transmission laser shot to laser receiving module, the warning the laser receiving module link to each other, at least, including two laser transmitting module and corresponding laser receiving module, laser transmitting module's laser modulation ware will make the lasing rather than the feature data of the laser receiving module that corresponds, the demodulator demodulation of laser receiving module after export the comparator to, another input of comparator is provided with the feature data of laser receiving module, the output of comparator connects the warning primary module. The plane is interceptd to many the theftproof to one independent light beam signal formation, can not have the real time monitoring at dead angle.
Description
Technical field
This utility model relates to safety-security area, particularly to a kind of wireless laser anti-theft device with multiple passage.
Background technology
Current wireless laser anti-theft device, one generating laser of general employing and a laser pickoff, utilize the feature of laser straightline propagation, it is arranged on robber porch, when there being robber to swarm into, health blocks and makes the laser of laser transmitter projects not propagate to be irradiated on laser pickoff, in laser pickoff, will appear from laser interrupt and produce such as one pulse signal of output, can be by judging that someone swarms into this pulse signal or other reaction signal on anti theft host, main frame is the most just reminded by modes such as acousto-optic-electrics, indicate that unsafe incidents occurs.Owing to being to use laser intelligence at doorway, holding wire is not the most used to connect, therefore, also referred to as wireless laser anti-theft device.Such wireless laser anti-theft device typically launches the signal of a fixed frequency of a branch of pulse width modulation by laser emitting module, laser pick-off module is received after optical signal is converted to the signal of telecommunication by photoelectric device and is demodulated, if sheltered from by light beam, then send alarm signal.Its shortcoming is: 1. the antitheft interception face of single beam is little, it is easy to avoid light beam, makes anti-theft function lose efficacy.2., when leaves, animal etc. block light beam, false positive signal can be produced.
Summary of the invention
This utility model is little due to the antitheft interception face of single beam for existing wireless laser anti-theft device, it is easy to avoid light beam, anti-theft function is made to lose efficacy, and the deficiency of the false positive signal that some extrinsic factor (leaves, animal etc. block light beam) produce cannot be avoided, a kind of multi-channel laser anti-theft device is provided, this device can not only realize the plane of multiple beam and intercept anti-theft function, the interception face of making is without dead angle, and can arrange and when multi-beam signal is blocked, just send alarm signal simultaneously, reduce rate of false alarm.
The technical solution of the utility model is: a kind of multi-channel laser anti-theft device, including laser emitting module, laser pick-off module and warning primary module, described laser emitting module is launched laser-correlation and is connected to laser pick-off module, the laser pick-off module described in described warning；At least include two laser emitting modules and corresponding laser pick-off module, the characteristic of corresponding laser pick-off module is modulated transmitting laser by the laser modulator of described laser emitting module, export to comparator after the demodulator demodulation of described laser pick-off module, another input of comparator is provided with the characteristic of described laser pick-off module, and the output of comparator connects described warning primary module.
Multipair independent light beams signal forms an antitheft interception plane, it is possible to without the real-time monitoring at dead angle.
Further, above-mentioned multi-channel laser anti-theft device: described laser emitting module, laser pick-off module and warning primary module are connected by CAN.
Further, above-mentioned multi-channel laser anti-theft device: the toggle switch of its manipulator input feature vector data oriented is set in described transmitter module；In described laser pick-off module, it is provided with toggle switch be connected with the input of described comparator.
So, laser emitting module and laser pick-off module can standardized production, utilize in use.The most every a pair Laser emission, receiver module use the unanimously ability successful matching of unique address code, only address code, do not have situation about interfering, and safety is higher.
Alarm host machine module adjustable alarm signal triggers number, reduces the rate of false alarm produced because of some extrinsic factor (leaves, animal etc. block light beam).
Below with reference to drawings and Examples, this utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is this utility model structured flowchart.
Fig. 2 is the toggle switch schematic diagram employed in this utility model embodiment.
Detailed description of the invention
Embodiment 1, as shown in Figure 1, the present embodiment be a kind of have multipair laser emitting module and corresponding laser pick-off module multi-channel laser anti-theft device, this device can have six pairs of laser emitting modules and laser pick-off module, these laser emitting modules and laser pick-off module utilize CAN to be connected with each other and are connected with warning primary module.After system electrification or reset, laser emitting module is by all for self-inspection online laser emitting modules, address code signal is launched by the ascending circulation in address after self-inspection, the optical signal received is converted to digital signal by corresponding laser pick-off module, and compared with the address code of self, do not receive the signal identical with the address code of self in 20 milliseconds and will send alarm signal to warning primary module, receive the signal identical with the address code of self and will send releasing alarm signal to warning primary module, compared with the alarm signal sum received is triggered number with the alarm signal that warning primary module is arranged by warning primary module, exceed or identical, send final alarm signal.
In the present embodiment, all of laser emitting module and all of laser pick-off module all use standard module, it is provided with toggle switch as shown in Figure 2 thereon, by the voltage signal that the switch output that Guan Bi is different is different, these voltage signals just can represent this laser emitting module or the characteristic of laser pick-off module, as shown in Figure 2, by utilizing switch Guan Bi or disconnection to realize the parallel connection of resistance R1, R2, R3, R4 various combination, generate different voltage signals and exported different voltage by divider resistance R5.By using the transmitter module numeral identical with receiver module as characteristic, it is modulated and demodulates, and use comparator the data that the data after the laser modulation signal received demodulation and toggle switch input to be compared in laser pick-off module side, if the two data are identical, illustrate that laser is not blocked, if the laser differing the explanation laser emitting module transmitting corresponding with this laser pick-off module is blocked, sent the signal needing to report to the police to warning primary module by CAN, now, warning primary module can use sound, the modes such as light are reported to the police.
Claims (3)
1. a multi-channel laser anti-theft device, including laser emitting module, laser pick-off module and warning primary module, described laser emitting module is launched laser-correlation and is connected with described laser pick-off module to laser pick-off module, described warning primary module；It is characterized in that: at least include two laser emitting modules and corresponding laser pick-off module, the characteristic of corresponding laser pick-off module is modulated on transmitting laser by the laser modulator of described laser emitting module, export to comparator after the demodulator demodulation of described laser pick-off module, another input of comparator is provided with the characteristic of described laser pick-off module, and the output of comparator connects described warning primary module.
Multi-channel laser anti-theft device the most according to claim 1, it is characterised in that: described laser emitting module, laser pick-off module and warning primary module are connected by CAN.
Multi-channel laser anti-theft device the most according to claim 1, it is characterised in that: the toggle switch of its manipulator input feature vector data oriented is set in described transmitter module；In described laser pick-off module, it is provided with toggle switch be connected with the input of described comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620344534.0U CN205582173U (en) | 2016-04-24 | 2016-04-24 | Multichannel laser anti -theft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620344534.0U CN205582173U (en) | 2016-04-24 | 2016-04-24 | Multichannel laser anti -theft device |
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| Publication Number | Publication Date |
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| CN205582173U true CN205582173U (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620344534.0U Expired - Fee Related CN205582173U (en) | 2016-04-24 | 2016-04-24 | Multichannel laser anti -theft device |
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| CN (1) | CN205582173U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108121016A (en) * | 2018-01-24 | 2018-06-05 | 深圳市信威电子有限公司 | Enter paper detection sensor and device |
| CN109272686A (en) * | 2018-11-02 | 2019-01-25 | 广州市艾礼富电子科技有限公司 | A kind of light beam personal identification method of correlation laser intrusion-detector |
-
2016
- 2016-04-24 CN CN201620344534.0U patent/CN205582173U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108121016A (en) * | 2018-01-24 | 2018-06-05 | 深圳市信威电子有限公司 | Enter paper detection sensor and device |
| CN109272686A (en) * | 2018-11-02 | 2019-01-25 | 广州市艾礼富电子科技有限公司 | A kind of light beam personal identification method of correlation laser intrusion-detector |
| CN109272686B (en) * | 2018-11-02 | 2024-01-19 | 广州市艾礼富电子科技有限公司 | Beam identity recognition method of correlation laser intrusion detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Tianhe District Ji Road 510663 Guangdong street listen new city of Guangzhou Province, No. 8 building two floor 4214K1 room 4 Patentee after: Guangzhou Xiao Gu Chuanqi Communication Technology Co Ltd Address before: Tianhe District Ji Road 510663 Guangdong street listen new city of Guangzhou Province, No. 8 building two floor 4214K1 room 4 Patentee before: Guangzhou Granville Communications Engineering Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 Termination date: 20200424 |
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| CF01 | Termination of patent right due to non-payment of annual fee |