CN109272686B - Beam identity recognition method of correlation laser intrusion detector - Google Patents
Beam identity recognition method of correlation laser intrusion detector Download PDFInfo
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- CN109272686B CN109272686B CN201811301635.XA CN201811301635A CN109272686B CN 109272686 B CN109272686 B CN 109272686B CN 201811301635 A CN201811301635 A CN 201811301635A CN 109272686 B CN109272686 B CN 109272686B
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 claims description 4
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
- G08B13/183—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier
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- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention discloses a beam identity recognition method of a correlation laser intrusion detector, which is characterized by comprising the following steps of: the correlation laser intrusion detector comprises a laser transmitter and a laser receiver, wherein the laser transmitter comprises: the system comprises a power circuit, a laser modulation and beam identity encryption microprocessor and a plurality of laser transmitters; the laser receiver includes: the system comprises a power supply circuit, a plurality of laser receivers, a plurality of laser demodulation and light beam identification microprocessors, a plurality of light beam identification instruction dial switches and an alarm signal centralized processing and outputting circuit. According to the invention, different identity identification codes are added to each beam by utilizing the microprocessor, the laser receiver of the correlation laser intrusion detector decodes the signals by the microprocessor, and each beam of the laser receiver is appointed to only receive the laser signals corresponding to the identity codes of the beams of the laser transmitter, so that the problem of mutual interference between adjacent beams of the correlation laser intrusion detector caused by beam diffusion in the current market is thoroughly solved.
Description
Technical Field
The invention relates to the technical field of correlation laser intrusion detectors, in particular to a beam identity recognition method of a correlation laser intrusion detector.
Background
Due to the fact that the correlation laser intrusion detector is long in prevention distance, good in environmental adaptability and stable in working state, the correlation laser intrusion detector is increasingly applied to various safety protection places such as armies, prisons, petrifaction, railways, electric power, banks, factories, schools and high-end communities. The number of the beams of the correlation laser intrusion detectors in the current market is mostly more than two, wherein the number of the beams of the detectors is more than ten beams for the laser detectors used in important guard places such as prisons, guardianship, petrifaction and electric power, in order to achieve the effect of tight guard, the distance between the beams is generally 15-30cm, the guard distance is 100-500 m, and the furthest guard distance can be 5000 m; in the prior art, each beam of the opposite-emission laser detector in the market works according to the identical modulation mode, different beams of the same detector do not carry out any encryption and subdivision processing, that is, when the guard distance of the laser detector is more than 100 meters, the adjacent beams are partially covered or completely covered when the laser beams of the laser transmitter reach the laser receiver due to the reason that the light beams spread, that is, after the laser beams of the first beam of the transmitter reach the first beam of the receiver, the second beam of the transmitter partially or completely cover the first beam of the receiver or the third beam of the receiver or even more adjacent beams of the receiver, so as to push the same, and the result is that each beam of the receiver can reliably alarm when each beam is blocked near the receiver.
Therefore, in the application of the multi-beam laser intrusion detector with two or more beams, the problem of mutual interference between adjacent beams caused by beam spread is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the invention provides a brand-new beam identity recognition method of the correlation laser intrusion detector, which can prevent the mutual interference between adjacent beams of the correlation laser intrusion detector and completely prevent the correlation laser detector from giving out leakage alarm due to the mutual interference of the adjacent beams.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the method for identifying the identity of the light beam of the correlation laser intrusion detector is characterized by comprising the following steps of: the correlation laser intrusion detector consists of a laser transmitter and a laser receiver; wherein the laser emission comprises: the system comprises a power circuit, a laser modulation and beam identity encryption microprocessor and a plurality of laser transmitters; the laser receiver includes: the system comprises a power supply circuit, a plurality of laser receivers, a plurality of laser demodulation and light beam identification microprocessors, a plurality of light beam identification instruction dial switches and an alarm signal centralized processing and outputting circuit.
Preferably, in the method for identifying the identity of the light beam of the correlation laser intrusion detector, the laser transmitters have at least 2 light beam laser transmitters, and all the light beam laser transmitters share a laser modulation and light beam identity encryption microprocessor; the laser modulation and beam identity encryption microprocessor drives all laser transmitters of the laser transmitters to transmit laser information in a scanning mode.
Preferably, in the method for identifying the identity of the beam of the correlation laser intrusion detector, the laser signal emitted by each laser emitter of the laser emitters is set with a unique identity code by the laser modulation and beam identity encryption microprocessor.
Preferably, in the beam identification method of the correlation laser intrusion detector, the laser receivers have at least 2 beam laser receivers, and the number of beams of the laser receivers is consistent with that of the laser transmitters; each beam laser receiver of the laser receivers is provided with an independent laser demodulation and beam identity recognition microprocessor and a beam identity instruction dial switch; the identity information of all the light beams of the laser transmitter is stored in each light beam laser demodulation and light beam identity recognition microprocessor of the laser receiver, and the light beam information which can be normally received by each light beam of the laser receiver can only be one light beam information of the laser transmitter, and the light beam information is appointed by the dialing of the light beam identity instruction dialing switch.
Preferably, in the method for identifying the identity of the light beam of the correlation laser intrusion detector, the method is also applicable to two-beam and more than two-beam correlation infrared intrusion detectors.
Compared with the prior art, the invention discloses a method for decoding the laser transmitter of the opposite-type laser intrusion detector by utilizing the microprocessor to add different unique identification codes to each beam, decoding the laser receiver of the opposite-type laser intrusion detector by utilizing the microprocessor, and designating that each beam of the laser receiver can only receive the laser signal of the corresponding beam identification code of the laser transmitter, thereby thoroughly solving the problem of mutual interference between adjacent beams caused by beam diffusion of the opposite-type laser intrusion detector in the current market, and solving the technical problem that the opposite-type laser intrusion detector is difficult to alarm and can form missing report when the laser intrusion detector is close to a laser transmitter to intercept part of laser beams in practical application.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of the structure of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention discloses a brand-new beam identity recognition method of a correlation laser intrusion detector, which can prevent adjacent beams of the correlation laser intrusion detector from forming mutual interference and thoroughly prevent the correlation laser detector from giving out leakage alarm due to the mutual interference of the adjacent beams.
Referring to fig. 1, the invention discloses a beam identity recognition method of a correlation laser intrusion detector, which specifically includes:
the correlation laser intrusion detector is composed of a laser transmitter 1 and a laser receiver 2, wherein the laser transmitter 1 comprises: a power supply circuit 3, a laser modulation and beam identity encryption microprocessor 4 and a plurality of laser transmitters 5; the laser receiver 2 includes: the system comprises a power circuit 6, a plurality of laser receivers 7, a plurality of laser demodulation and light beam identification microprocessors 8, a plurality of light beam identification instruction dial switches 9 and an alarm signal centralized processing and outputting circuit 10.
In the invention, a microprocessor is utilized to add different unique beam identification codes into the modulation signals of each beam in a laser transmitter of the correlation laser intrusion detector, and the codes are transmitted to a laser receiver in a scanning transmission mode, and each beam of the laser receiver is provided with an independent laser receiver, a laser signal demodulation and beam identification microprocessor and a beam identification instruction dial switch; the microprocessor of each beam of the laser receiver stores each beam identity code information of the laser transmitter, the beam information which can be normally received by each beam of the laser receiver is determined by the beam identity instruction dial switch of the beam and corresponds to the beam of the laser transmitter, namely, a first beam laser receiver of the laser receiver can only receive the laser signal with the fixed identity code sent by the first beam of the laser transmitter, a second beam laser receiver of the laser receiver can only receive the laser signal with the fixed identity code sent by the second beam of the laser transmitter, and the like; and the beam identity recognition microprocessor recognizes and filters the beam identity information sent by the laser transmitter according to the instruction of the beam instruction dial switch. Because the microprocessor of the laser transmitter modulates the laser signal emission of the laser transmitter in a scanning mode, each laser receiver of the laser receiver can only receive the laser signal of one light beam identity information identification code sent by the laser transmitter in one scanning emission period of the laser transmitter, and in one detection period, when the microprocessor of the laser receiver recognizes the light beam signal of the appointed identity code, the microprocessor makes normal judgment of the light beam operation; in a detection time period, when the microprocessor of the laser receiver does not recognize the light beam signal of the appointed identity code or the received light beam signal of the appointed identity code does not reach a design threshold value, the microprocessor makes alarm judgment on the light beam; obviously, the problem of mutual interference between adjacent light beams caused by light beam diffusion of the correlation laser intrusion detector in the current market can be thoroughly solved by the working mode, and the technical problem that the correlation laser intrusion detector is difficult to alarm and can form a missing report when the correlation laser intrusion detector is close to a laser transmitter to intercept part of a laser beam in practical application is solved.
In order to further optimize the technical scheme, the invention can be widely applied to two-beam and more than two-beam correlation laser intrusion detectors or correlation infrared intrusion detectors, and can thoroughly solve the technical defect that adjacent beams of the correlation laser intrusion detectors and the correlation infrared intrusion detectors in practical application are mutually interfered and difficult to block alarm, so that missed alarm can be formed.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (1)
1. The method for identifying the identity of the light beam of the correlation laser intrusion detector is characterized by comprising the following steps of: the correlation laser intrusion detector consists of a laser transmitter and a laser receiver; wherein, the laser transmitter includes: the system comprises a power circuit, a laser modulation and beam identity encryption microprocessor and a plurality of laser transmitters; the laser receiver includes: the power supply circuit is used for a plurality of laser receivers, a plurality of laser demodulation and light beam identification microprocessors, a plurality of light beam identification instruction dial switches and an alarm signal centralized processing and outputting circuit;
the laser transmitters are provided with at least 2 light beam laser transmitters, and all the light beam laser transmitters share a laser modulation and light beam identity encryption microprocessor; the laser modulation and beam identity encryption microprocessor drives all laser transmitters of the laser transmitters to alternately transmit laser information in a scanning mode;
the laser signal emitted by each laser emitter of the laser emitters is set with a unique identity identification code by a laser modulation and beam identity encryption microprocessor;
the laser receiver has at least 2 light beam laser receivers, and the number of light beams of the laser receiver is consistent with that of the laser transmitter; each beam laser receiver of the laser receivers is provided with an independent laser demodulation and beam identity recognition microprocessor and a beam identity instruction dial switch; the laser receiver is characterized in that each beam laser demodulation and beam identity recognition microprocessor stores the identity information of all beams of the laser transmitter, each beam of the laser receiver can normally receive the beam information, and only one beam of information transmitted by the laser transmitter can be scanned in turn, wherein the beam information is appointed by the beam identity instruction dial switch;
the method comprises the steps that different unique identity codes are added to each beam by a microprocessor at a laser transmitter of the correlation laser intrusion detector, decoding is carried out by the microprocessor at a laser receiver of the correlation laser intrusion detector, and each beam of the laser receiver is appointed to only receive laser signals of the corresponding beam identity codes of the laser transmitter;
the information of each beam of the laser receiver can be normally received is determined by a beam identity instruction dial switch of the corresponding beam and corresponds to the beam of the laser transmitter, namely, a first beam laser receiver of the laser receiver can only receive the laser signal with the fixed identity code sent by the first beam of the laser transmitter, a second beam laser receiver of the laser receiver can only receive the laser signal with the fixed identity code sent by the second beam of the laser transmitter, and the like; the beam identity recognition microprocessor recognizes and filters the beam identity information sent by the laser transmitter according to the instruction of the beam instruction dial switch; because the microprocessor of the laser transmitter modulates the laser signal emission of the laser transmitter in a scanning mode, each laser receiver of the laser receiver can only receive the laser signal of one beam identity information identification code sent by the laser transmitter in one scanning emission period of the laser transmitter, and in one detection period, when the microprocessor of the laser receiver recognizes the beam signal of the appointed identity code, the microprocessor makes normal judgment of the corresponding beam operation; in a detection time period, when the microprocessor of the laser receiver does not recognize the light beam signal of the appointed identity code or the received light beam signal of the appointed identity code does not reach a design threshold value, the microprocessor makes alarm judgment on the light beam;
the method is also suitable for two-beam and more than two-beam correlation infrared intrusion detectors.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811301635.XA CN109272686B (en) | 2018-11-02 | 2018-11-02 | Beam identity recognition method of correlation laser intrusion detector |
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| CN201811301635.XA CN109272686B (en) | 2018-11-02 | 2018-11-02 | Beam identity recognition method of correlation laser intrusion detector |
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| CN109272686A CN109272686A (en) | 2019-01-25 |
| CN109272686B true CN109272686B (en) | 2024-01-19 |
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| CN113655537A (en) * | 2021-09-03 | 2021-11-16 | 广州市艾礼富电子科技有限公司 | Method for preventing mutual interference of laser correlation detector cluster application |
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| CN102651158A (en) * | 2012-05-18 | 2012-08-29 | 上海理工大学 | Infrared laser correlation light wall type intrusion detector |
| CN202749012U (en) * | 2012-09-22 | 2013-02-20 | 中国船舶重工集团公司第七�三研究所 | Fire-extinguishing efficiency detecting device based on laser beam blocking judgment |
| CN204630661U (en) * | 2015-06-02 | 2015-09-09 | 魏长柏 | A kind of photo-detector with authentication |
| CN205582173U (en) * | 2016-04-24 | 2016-09-14 | 广州威玺斯通信工程有限公司 | Multichannel laser anti -theft device |
| CN108133560A (en) * | 2016-12-01 | 2018-06-08 | 李建伟 | A kind of wavelength-division multiplex（WDM）The passive intrusion alarm fence technological system of laser-correlation |
| CN209103469U (en) * | 2018-11-02 | 2019-07-12 | 广州市艾礼富电子科技有限公司 | A kind of correlation laser intrusion-detector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040071471A1 (en) * | 2002-10-10 | 2004-04-15 | Interlink Electronics, Inc. | Method and system for pairing a remote control transmitter and receiver |
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- 2018-11-02 CN CN201811301635.XA patent/CN109272686B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102651158A (en) * | 2012-05-18 | 2012-08-29 | 上海理工大学 | Infrared laser correlation light wall type intrusion detector |
| CN202749012U (en) * | 2012-09-22 | 2013-02-20 | 中国船舶重工集团公司第七�三研究所 | Fire-extinguishing efficiency detecting device based on laser beam blocking judgment |
| CN204630661U (en) * | 2015-06-02 | 2015-09-09 | 魏长柏 | A kind of photo-detector with authentication |
| CN205582173U (en) * | 2016-04-24 | 2016-09-14 | 广州威玺斯通信工程有限公司 | Multichannel laser anti -theft device |
| CN108133560A (en) * | 2016-12-01 | 2018-06-08 | 李建伟 | A kind of wavelength-division multiplex（WDM）The passive intrusion alarm fence technological system of laser-correlation |
| CN209103469U (en) * | 2018-11-02 | 2019-07-12 | 广州市艾礼富电子科技有限公司 | A kind of correlation laser intrusion-detector |
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