CN100426330C - Infrared microwave alarm - Google Patents
Infrared microwave alarm Download PDFInfo
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- CN100426330C CN100426330C CNB2006101324164A CN200610132416A CN100426330C CN 100426330 C CN100426330 C CN 100426330C CN B2006101324164 A CNB2006101324164 A CN B2006101324164A CN 200610132416 A CN200610132416 A CN 200610132416A CN 100426330 C CN100426330 C CN 100426330C
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Abstract
An infrared-microwave alarm device is prepared as forming burglar proof detection circuit by infrared detection probe, infrared signal detection circuit, microwave detection probe, microwave signal detection circuit, CPU monolithic computer, alarm switch circuit, temperature and luminosity compensation circuit; carrying out integrated analysis by CPU monolithic computer according to received infrared signal and microwave signal and outputting an alarm to alarm circuit by said computer if necessary.
Description
Technical field:
The present invention relates to a kind of infrared microwave alarm that is used to steal the feelings detection alarm.
Background technology:
At present, for security needs, a lot of occasions need be used and steal the feelings detection alarm device.But also there are a lot of problems in present robber's feelings detection alarm device.At first fail to report, when stealing the feelings generation,, cause not having stolen feelings to trigger, omit warning because it is sensitive inadequately to steal the feelings detection alarm device.Next is wrong report, truly in the fence coverage do not steal feelings and take place since warning device too sensitivity or antijamming capability are not strong, warning leads to errors.Failing to report, reporting by mistake is a pair of contradiction in the warning device, and sensitive inadequately, generation is failed to report, and its consequence is conspicuous; System is too sensitive, produces wrong report, and is more fatal than failing to report sometimes.Up to now, also not having error rate is zero warning device, and therefore, the industry standard of warning device also just fixes on false alarm and is no more than in 5% the scope.In mobile base station antitheft, the infrared microwave three mirror probes that used outdoor type import, domestic brand to exist infrared detection, Microwave Measurement, tamper to detect simultaneously a large amount of false alarms occurred in actual the use.The mobile base station distributes wide, if wrong report will bother than not installing also.
Summary of the invention:
Purpose of the present invention just provides a kind of infrared microwave alarm, solves to omit to report to the police and this a pair of contradiction of false alarm, and rate of failing to report and rate of false alarm are greatly reduced.
For achieving the above object, a kind of infrared microwave alarm that is used to steal the feelings detection alarm comprises and steals feelings detection circuit and warning circuit, described robber's feelings detection circuit comprises infrared detection head, the infrared signal detection circuit, the microwave sounding head, microwave signal detection circuit and CPU single-chip microcomputer:
The infrared signal that infrared detection head detects is through infrared signal detection circuit input CPU single-chip microcomputer, this CPU single-chip microcomputer is according to the infrared signal of input, the work of controlled microwave signal detection circuit, the microwave signal that the microwave sounding head detects is imported above-mentioned CPU single-chip microcomputer through the microwave signal detection circuit, this CPU single-chip microcomputer is according to the infrared signal and the microwave signal of input, through comprehensive analysis processing, one delivery outlet output alarm signal is to warning circuit;
Importantly: above-mentioned robber's feelings detection circuit is provided with two-way at least, and the alarm switch circuit that the feelings detection circuit also comprises the work of control warning circuit is stolen on its each road, and this alarm switch circuit is arranged between corresponding CPU single-chip microcomputer alerting signal delivery outlet and the warning circuit.And if only if at least two-way steal the feelings detection circuit and detect alerting signal simultaneously, then the two-way alarm switch circuit of stealing the feelings detection circuit moves warning circuit side's output alarm simultaneously at least.
Above-mentioned alarm switch circuit can be relay circuit, and in one embodiment, described two-way is at least stolen the feelings detection circuit, and the relay contact switch of its each road alarm switch circuit all is in series with warning circuit.And if only if, and the relay contact switch of two-way alarm switch circuit is simultaneously closed at least, and warning circuit could work, the generation warning.In another embodiment, described two-way is at least stolen the feelings detection circuit, and the relay contact switch of its each road alarm switch circuit all is in parallel with warning circuit.The relay contact switch of and if only if at least two road alarm switch circuits is opened simultaneously, and warning circuit could be worked, and produces to report to the police.
As a further improvement on the present invention, described two-way is at least stolen the feelings detection circuit, and its each road is equipped with temperature-compensation circuit, the corresponding CPU single-chip microcomputer of temperature output signal input of this temperature-compensation circuit; Its each road is equipped with the luminosity compensating circuit, the corresponding CPU single-chip microcomputer of luminosity output signal input of this luminosity compensating circuit.
Realization principle of the present invention is infrared leading, microwave-assisted, single-chip microcomputer Intelligent treatment, after finding target, infrared detection starts the microwave signal detection circuit, when two kinds of signals all meet the warning output condition effectively and by CPU single-chip microcomputer Intelligent treatment, by CPU single-chip microcomputer output alarm signal, because the present invention has increased temperature compensation, luminosity compensates the unexistent measure of these prior aries, by CPU single-chip microcomputer Intelligent treatment, reduce the rate of false alarm that single channel of the present invention is reported to the police and exported.And, and if only if at least two-way steal the feelings detection circuit and all detected when stealing feelings and existing, also be that output alarm side is effective under the prerequisite of the equal output alarm signal of every road CPU single-chip microcomputer, at this moment, warning circuit work produces and reports to the police.And any wherein one road CPU single-chip microcomputer output alarm signal all is not effective warning, and this situation guarantees that rate of false alarm of the present invention further reduces.The present invention correspondingly can improve the sensitivity of infrared acquisition and microwave sounding by overcoming wrong report, fails to report thereby overcome, and guarantees that rate of failing to report of the present invention further reduces.
Description of drawings:
Fig. 1 is the circuit block diagram of the embodiment of the invention;
Fig. 2 is the infrared signal detection circuit schematic diagram that Fig. 1 contains infrared detection head;
Fig. 3 is the microwave signal detection circuit schematic diagram that Fig. 1 contains the microwave sounding head;
Fig. 4 is the circuit theory diagrams that Fig. 1 temperature-compensation circuit, luminosity compensating circuit, alarm switch circuit and CPU single-chip microcomputer are connected;
Embodiment:
The CONSTRUCTED SPECIFICATION of the embodiment of the invention is described in detail in detail below in conjunction with accompanying drawing:
As shown in Figure 1, circuit block diagram for the embodiment of the invention, comprise two-way robber's feelings detection circuit and a warning circuit, each road is stolen the feelings detection circuit and is comprised infrared detection head, the infrared signal detection circuit, the microwave sounding head, the microwave signal detection circuit, temperature-compensation circuit, the luminosity compensating circuit, CPU single-chip microcomputer and alarm switch circuit: steal in the feelings detection circuit on each road, the infrared signal that infrared detection head detects is through infrared signal detection circuit input CPU single-chip microcomputer, this CPU single-chip microcomputer is according to the infrared signal of input, the work of controlled microwave signal detection circuit, the microwave signal that the microwave sounding head detects is imported above-mentioned CPU single-chip microcomputer through the microwave signal detection circuit, temperature-compensation circuit is with scene temperature data input CPU single-chip microcomputer, the luminosity compensating circuit is with on-the-spot luminosity data input CPU single-chip microcomputer, the CPU single-chip microcomputer is according to the infrared signal and the microwave signal of input, in conjunction with detected scene temperature data, luminosity data, carry out comprehensive analysis processing, one delivery outlet output alarm signal is to alarm switch circuit.
As shown in Figure 1, in the embodiment of the invention, alarm switch circuit adopts relay circuit, the relay contact switch J3 of two road alarm switch circuits all is in series with warning circuit, when any one road CPU single-chip microcomputer output alarm signal wherein, the relay contact switch closure of corresponding alarm switch circuit.Under the situation of and if only if the equal output alarm signal of two-way CPU single-chip microcomputer, the relay contact switch J3 of corresponding two road alarm switch circuits is closed simultaneously, and warning circuit could work, the generation warning; If have only wherein one road CPU single-chip microcomputer output alarm signal, and another road CPU single-chip microcomputer does not have output alarm signal, the relay contact switch J3 of then corresponding two road alarm switch circuits, a closure, another is opened, and warning circuit can not be worked because of open circuit, can not produce warning.
The relay contact switch that two-way is stolen the feelings detection circuit can also be designed to all be in parallel with warning circuit, and when any one road CPU single-chip microcomputer output alarm signal wherein, the relay contact switch of corresponding alarm switch circuit is opened.Under the situation of and if only if the equal output alarm signal of two-way CPU single-chip microcomputer, the relay contact switch of corresponding two road alarm switch circuits is opened simultaneously, and warning circuit could be worked, and produces to report to the police; If have only wherein one road CPU single-chip microcomputer output alarm signal, and another road CPU single-chip microcomputer does not have output alarm signal, the relay contact switch of then corresponding two road alarm switch circuits, a closure, another is opened, and warning circuit can not be worked because of short circuit, can not produce warning.
Extremely shown in Figure 4 as Fig. 2, be in one tunnel robber's feelings detection circuit, the infrared signal detection circuit that contains infrared detection head contains the microwave signal detection circuit of microwave sounding head, the circuit theory diagrams that temperature-compensation circuit, luminosity compensating circuit, alarm switch circuit and CPU single-chip microcomputer are connected.The circuit brief analysis is as follows:
As Fig. 2, shown in Figure 4, the infrared signal that infrared detection head CH1 detects, make the first order through operational amplifier IC2A and amplify, be coupled by electrochemical capacitor C53 then and carry out second level amplification to operational amplifier IC2B, operational amplifier IC2A and IC2B are made up of a slice LM358 dual operational amplifier.Through the infrared signal of amplifying for the second time, satisfy the A/D analog to digital conversion input standard of 0-5V, the 18 pin IC1-18 of input CPU single-chip microcomputer IC1.CPU single-chip microcomputer IC1 adopts the PIC16C711 chip, is one 8 CPU single-chip microcomputer, and 4 tunnel 8 A/D analog to digital conversion simulating signal input ports are arranged, and 8 road I/O input/output ports are arranged, and possesses very strong processing power.The 18 pin IC1-18 of CPU single-chip microcomputer IC1 are 8 A/D analog to digital conversion of first via simulating signal input port RA1, by the infrared signal of input is carried out the A/D analog to digital conversion, obtain the changes in amplitude of infrared signal.1 pin of CPU single-chip microcomputer IC1 is the second road A/D analog to digital conversion simulating signal input port RA2, simulating signal input port RA2 is the temperature compensation input port of temperature-compensation circuit, temperature-compensation circuit comprises temperature limit leakage resistance R65 and temperature detection resistance R67, be connected in parallel between positive power source terminal VCC and the common after temperature limit leakage resistance R65 and the temperature detection resistance R67 series connection, the tie point of temperature limit leakage resistance R65 and temperature detection resistance R67 is connected the temperature compensation input port RA2 of CPU single-chip microcomputer IC1.In the time of temperature variation, the resistance of temperature detection resistance R67 can change, cause the change in voltage on the RA2 of temperature compensation input port, by this detection, can obtain working temperature of the present invention, according to the data of Current Temperatures, the infrared signal that infrared detection head is detected compensates and revises, and improves the precision of infrared acquisition.2 pin of CPU single-chip microcomputer IC1 are Third Road A/D analog to digital conversion simulating signal input port RA3, simulating signal input port RA3 is that the light of luminosity compensating circuit is mended the input port, the luminosity compensating circuit comprises luminosity current-limiting resistance R66 and photometric detection diode R68, the end of luminosity current-limiting resistance R66 connects the anode of photometric detection diode R68, its tie point connects the light of CPU single-chip microcomputer IC1 and mends input port RA3, the other end of luminosity current-limiting resistance R66 connects positive power source terminal VCC, and the negative terminal of photometric detection diode R68 connects common.When luminosity was different, the conducting degree of photometric detection diode R68 changed, and caused the change in voltage on the light benefit input port RA3, according to the data of current luminosity, also can revise the precision of infrared acquisition, guaranteed the accuracy of test data.Because CPU single-chip microcomputer IC1 possesses stronger signal handling capacity, can filter at the signal of unexpected variation or the signal of some non-rules, so, possess very high accuracy.
As shown in Figure 3, Figure 4, when CPU single-chip microcomputer IC1 has detected infrared invasion signal and has entered the monitored area, delivery outlet 7 pin IC1-7 by CPU single-chip microcomputer IC1 are to triode Q1 output pulse signal, and by the driving of triode Q1, a CH2 provides the pulse power to microwave sounding.During a microwave sounding CH2 works, the 3 pin IC1-3 output signals of CPU single-chip microcomputer IC1, control triode Q3 conducting, further control triode Q4 conducting, the movement of objects low frequency signal gating output of a microwave sounding CH2 output, capacitor C 4 is a sampling hold circuit among the figure, guarantees the continuous and complete of microwave signal.By two-stage low pass amplifying circuit IC4A, IC4B the microwave signal of a microwave sounding CH2 output is amplified, in the output terminal 7 pin output of low pass amplifying circuit IC4B.Adjustable resistance W1 is used to adjust the gain of first order amplifying circuit IC4A, adjusts the size of W1 and can adjust detection range.The 17 pin IC1-17 of the microwave signal input CPU single-chip microcomputer IC1 that the process low pass is amplified, i.e. the 0 road A/D analog to digital conversion simulating signal input port RA0.The CPU single-chip microcomputer is by the analysis to infrared signal, simultaneously comprehensive microwave signal, the discrepancy situation of infrared radiation source can be judged, the interference of hot-air and nonthermal source mobile object can be got rid of with this, as the electric fan of the curtain that waves, rotation etc., can also get rid of the interference of multiple thermal source, such as: during outdoor use, object absorbs heat, causes the body surface temperature to rise, perhaps, be monitored system and have heat-producing device etc.Software by rational CPU mathematical model and establishment science in conjunction with on-the-spot temperature data, the luminosity data that detects, carries out the overall treatment analysis, makes the present invention possess very high accuracy.Simultaneously,, the pet of body weight can be discerned fully, the wrong report that pet causes can be eliminated fully less than 20kg owing to possessing accurate A/D analog-digital conversion data and people as the fastest locomotivity of heater.
As shown in Figure 4, the delivery outlet 11 pin output alarm signals of CPU single-chip microcomputer IC1 are to alarm switch circuit.The alarm switch circuit of present embodiment is a relay circuit, is output as the normally off warning if report to the police, and then relay circuit comprises the contact switch socket J3 of triode Q5, diode D1, relay K 1, resistance R 60 and relay K 1.Be output as normally open if report to the police and report to the police, then relay circuit comprises the contact switch socket J3 of triode Q6, diode D1, relay K 1, resistance R 60 and relay K 1.Normally off is reported to the police or normally open is reported to the police, by selecting socket J2 decision, if be communicated with 1 pin and 2 pin of selecting socket J2, then alerting signal delivery outlet 11 pin of CPU single-chip microcomputer IC1 connect triode Q5 by resistance R 61, when CPU single-chip microcomputer IC1 output alarm signal, the contact switch closure of relay K 1 is for normally off is reported to the police, at this moment, the contact switch socket J3 of relay K 1 and warning circuit series connection.If be communicated with 2 pin and 3 pin of selecting socket J2, then alerting signal delivery outlet 11 pin of CPU single-chip microcomputer IC1 connect triode Q6 by resistance R 61, when CPU single-chip microcomputer IC1 output alarm signal, the contact switch of relay K 1 is opened, for normally open is reported to the police, at this moment, the contact switch socket J3 of relay K 1 and warning circuit parallel connection.
In actual the use, steal the feelings detection circuit owing to adopt identical two-way, infrared and microwave signal etc. all is double check, some erroneous trigger even probability is very low, may causes wherein and one the tunnel steal feelings detection circuit false alarm, but, if error-detecting, almost cannot steal the feelings detection circuit and occur simultaneously other one the tunnel, this situation is avoided the appearance reported by mistake well.If infrared object is arranged really, be certain to be stolen the feelings detection circuit and detect, also the possibility of just not failing to report by two-way in the monitored area activity.
According to contrast test under various environment and actual the use, traditional infrared microwave three mirror probes, though also possessed infrared acquisition and microwave sounding, but, because the singularity of outdoor use, wrong report all can occur, fail to report at high atmospheric temperature and wet environment, the reason that appearance is failed to report or reported by mistake, be because wrong report and to fail to report be a paradox, even traditional infrared microwave three mirror probes possess very complete mathematical model and digital filtering measure, still because the sensitivity of infrared detection head and microwave sounding head itself may cause false alarm.In identical occasion, behind employing the present invention, find the problem that the invention solves wrong report and fail to report.The present invention installs and uses in the base station anti-theft of China Mobile, and practical effect proves there is not to occur the wrong report of " wolf has come ", and reporting to the police accurately helps the China Mobile and the police to arrest the theft crime molecule.
The present invention has increased temperature compensation, luminosity compensates the unexistent measure of these existing infrared microwave alarms, the rate of false alarm that makes single channel warning output is less than 1%, and concerning the embodiment of the invention, be to need two-way to steal the feelings detection circuit to provide alerting signal simultaneously, so the probability of wrong report is inevitable less than 1% * 1%=0.01%.Fail to report and the rate of false alarm of the embodiment of the invention are less than 0.01%, fail to report with rate of false alarm excellent more than 100 times than 3% of prior art, and, the present invention is not influenced by temperature, humidity, noise, air-flow, dust, light etc., being fit to rugged surroundings, is the first-selected product that solves the antitheft detection of outdoor environment.
Claims (9)
1, a kind of infrared microwave alarm that is used to steal the feelings detection alarm, comprise and steal feelings detection circuit and warning circuit, described robber's feelings detection circuit comprises infrared detection head, infrared signal detection circuit, microwave sounding head, microwave signal detection circuit and CPU single-chip microcomputer:
The infrared signal that infrared detection head detects is through infrared signal detection circuit input CPU single-chip microcomputer, this CPU single-chip microcomputer is according to the infrared signal of input, the work of controlled microwave signal detection circuit, the microwave signal that the microwave sounding head detects is imported above-mentioned CPU single-chip microcomputer through the microwave signal detection circuit, this CPU single-chip microcomputer is according to the infrared signal and the microwave signal of input, through comprehensive analysis processing, one delivery outlet output alarm signal is to warning circuit;
It is characterized in that: above-mentioned robber's feelings detection circuit is provided with two-way at least, the alarm switch circuit that the feelings detection circuit also comprises the work of control warning circuit is stolen on its each road, and this alarm switch circuit is arranged between corresponding CPU single-chip microcomputer alerting signal delivery outlet and the warning circuit.
2, warning device according to claim 1 is characterized in that: described alarm switch circuit is a relay circuit, and described two-way is at least stolen the feelings detection circuit, and the relay contact switch of its each road alarm switch circuit all is in series with warning circuit.
3, warning device according to claim 1 is characterized in that: described alarm switch circuit is a relay circuit, and described two-way is at least stolen the feelings detection circuit, and the relay contact switch of its each road alarm switch circuit all is in parallel with warning circuit.
4, according to each described warning device of claim 1 to 3, it is characterized in that: described two-way is at least stolen the feelings detection circuit, and its each road is equipped with temperature-compensation circuit, the corresponding CPU single-chip microcomputer of temperature output signal input of this temperature-compensation circuit.
5, warning device according to claim 4, it is characterized in that: described temperature-compensation circuit comprises temperature limit leakage resistance and temperature detection resistance, be connected in parallel between positive power source terminal and the common after temperature limit leakage resistance and the temperature detection resistance series connection, the tie point of temperature limit leakage resistance and temperature detection resistance is connected the temperature compensation input port of corresponding CPU single-chip microcomputer.
6, according to each described warning device of claim 1 to 3, it is characterized in that: described two-way is at least stolen the feelings detection circuit, and its each road is equipped with the luminosity compensating circuit, the corresponding CPU single-chip microcomputer of luminosity output signal input of this luminosity compensating circuit.
7, warning device according to claim 6, it is characterized in that: described luminosity compensating circuit comprises luminosity current-limiting resistance and photometric detection diode, one end of luminosity current-limiting resistance connects the anode of photometric detection diode, its tie point connects the light of corresponding CPU single-chip microcomputer and mends the input port, the other end of luminosity current-limiting resistance connects positive power source terminal, and the negative terminal of photometric detection diode connects common.
8, warning device according to claim 4 is characterized in that: each road is stolen the feelings detection circuit and also is provided with the luminosity compensating circuit, the corresponding CPU single-chip microcomputer of luminosity output signal input of this luminosity compensating circuit.
9, warning device according to claim 8, it is characterized in that: described temperature-compensation circuit comprises temperature limit leakage resistance and temperature detection resistance, be connected in parallel between positive power source terminal and the common after temperature limit leakage resistance and the temperature detection resistance series connection, the tie point of temperature limit leakage resistance and temperature detection resistance is connected the temperature compensation input port of corresponding CPU single-chip microcomputer; Described luminosity compensating circuit comprises luminosity current-limiting resistance and photometric detection diode, one end of luminosity current-limiting resistance connects the anode of photometric detection diode, its tie point connects the light of corresponding CPU single-chip microcomputer and mends the input port, the other end of luminosity current-limiting resistance connects positive power source terminal, and the negative terminal of photometric detection diode connects common.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101324164A CN100426330C (en) | 2006-12-29 | 2006-12-29 | Infrared microwave alarm |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006101324164A CN100426330C (en) | 2006-12-29 | 2006-12-29 | Infrared microwave alarm |
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| CN101000706A CN101000706A (en) | 2007-07-18 |
| CN100426330C true CN100426330C (en) | 2008-10-15 |
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| CNB2006101324164A Expired - Fee Related CN100426330C (en) | 2006-12-29 | 2006-12-29 | Infrared microwave alarm |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104484968B (en) * | 2014-12-20 | 2017-02-22 | 成都史塔克智能科技有限公司 | Method, device and system for human detection |
| CN104821054B (en) * | 2015-05-11 | 2017-03-15 | 福建泉州市东昂电子有限公司 | A kind of double prison detection systems and its monitoring method |
| JP6675076B2 (en) * | 2015-06-24 | 2020-04-01 | パナソニックＩｐマネジメント株式会社 | Detection object detection system and detection method |
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| US4710750A (en) * | 1986-08-05 | 1987-12-01 | C & K Systems, Inc. | Fault detecting intrusion detection device |
| CN2212805Y (en) * | 1993-11-15 | 1995-11-15 | 颜旭东 | Intelligent detector for preventing theft and fire |
| US5473311A (en) * | 1994-09-16 | 1995-12-05 | C&K Systems, Inc. | Method and apparatus to distinguish human intruder and animal intruder |
| US6188318B1 (en) * | 1999-06-29 | 2001-02-13 | Pittway Corp. | Dual-technology intrusion detector with pet immunity |
| US20020175815A1 (en) * | 2001-05-22 | 2002-11-28 | Baldwin John R. | Dual technology occupancy sensor and method for using the same |
| US20050231353A1 (en) * | 2004-04-16 | 2005-10-20 | Dipoala William S | Intrusion detection system including over-under passive infrared optics and a microwave transceiver |
| US20060164233A1 (en) * | 2005-01-07 | 2006-07-27 | Lingmin Meng | Dual sensing intrusion detection method and system with state-level fusion |
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2006
- 2006-12-29 CN CNB2006101324164A patent/CN100426330C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4710750A (en) * | 1986-08-05 | 1987-12-01 | C & K Systems, Inc. | Fault detecting intrusion detection device |
| CN2212805Y (en) * | 1993-11-15 | 1995-11-15 | 颜旭东 | Intelligent detector for preventing theft and fire |
| US5473311A (en) * | 1994-09-16 | 1995-12-05 | C&K Systems, Inc. | Method and apparatus to distinguish human intruder and animal intruder |
| US6188318B1 (en) * | 1999-06-29 | 2001-02-13 | Pittway Corp. | Dual-technology intrusion detector with pet immunity |
| US20020175815A1 (en) * | 2001-05-22 | 2002-11-28 | Baldwin John R. | Dual technology occupancy sensor and method for using the same |
| US20050231353A1 (en) * | 2004-04-16 | 2005-10-20 | Dipoala William S | Intrusion detection system including over-under passive infrared optics and a microwave transceiver |
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