CN103680005A - Infrared transmitting circuit of infrared alarm device - Google Patents
Infrared transmitting circuit of infrared alarm device Download PDFInfo
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- CN103680005A CN103680005A CN201310603674.6A CN201310603674A CN103680005A CN 103680005 A CN103680005 A CN 103680005A CN 201310603674 A CN201310603674 A CN 201310603674A CN 103680005 A CN103680005 A CN 103680005A
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Abstract
The invention relates to the field of security technologies and provides an infrared transmitting circuit of an infrared alarm device. The infrared transmitting circuit comprises a diode D5, an infrared transmitting tube D6, resistors R14-R17, a resistor R20, triodes VT6-VT8, and a power source VCC. An anode of the diode D5 is connected with the power source VCC. A cathode of the diode D5 is connected with the resistors R13-16 and the resistor R20. An emitter of the triode VT6 is connected with a cathode of a triode through the resistor R20. A collector of the triode VT6 is connected with an anode of the infrared transmitting tube D6. A cathode of the infrared transmitting tube D6 is grounded. A collector of the triode VT7 is connected with a base of the triode VT8 through a capacitor C8. A base of the triode VT7 is connected with a collector of the triode VT8 through a capacitor C9. A collector of the triode VT7 is connected with a cathode of the diode D5 through a resistor R13. The base of the triode VT7 is connected with the cathode of the diode D5 through a resistor R15.
Description
Technical field
The present invention relates to technical field of security and protection, a kind of infrared transmitting circuit of infrared warning device is provided.
Background technology
Foundation along with China market economic system, the development of science and technology, China's security protection industry is constantly pushed ahead, and oneself becomes the hi tech market that an embodiment public safety emerging, that have a high potential and technical precaution are combined closely security protection market, for the development of security protection enterprise provides rare opportunity.And there is in the world the hugest security product market in the just quick China in line with international standards of domestic security protection industry, and this is the advantage of our maximum.In the develop rapidly on the original basis especially of European and American developed countries' security protection industry, in other developing countries, as Asia, Latin America, Eastern Europe, Africa and the Middle East, also can predict its rapid growth.These areas also have the very large security protection market of not developed, and the feature in these markets is that crime rate just develops rapidly in continuous increase, economy, and therefore, these countries are also increasing gradually to the demand of safety practice and security method.So research warning system has good social value and economic worth.On society, burglary-resisting system is more and more subject to people's attention, and in national economy, develops rapidly, and under the promotion that living standards of the people improve day by day, people are growing to the demand of safety, also more and more darker to the understanding of security protection.Particularly, the large project such as " national Emergency System ", " safe city ", " Safe Campus ", " science and technology is alert by force " is in national expansion, and the important International Operations such as " Olympic Games ", " World Expo ", " Asian Games ", " Games for university students " is held in China, promoted security protection industry to develop rapidly, security protection industry has presented a flourish good momentum.Recent years, statistics showed: the security protection industry of China on average shoots up with the annual growth of 15%-30%.
Yet, although it should be noted that although the development of the security protection industry of China presents actively, lasting, quick, sane good situation, in the development of Dan China security protection industry, also there are a lot of problems, seriously restricting the healthy long term growth of China's security protection industry.Mainly appear at China's security protection industry industrial structure extremely unreasonable, mountain vallage phenomenon is prevailing, and product is manufactured in a rough and slipshod way, and lacks technology content, extensive growth ... and so on, make security protection industrial adjustment upgrading cry more and more.Key is that product level is low, and high added value, high-end product are few.
General designation to the electronic product for occurring to give the alarm with forms such as sound, light, electric waves under the situations such as alert, danger, emergency condition.Along with scientific and technological progress, mechanical alarm device is replaced by advanced electronic alarm more and more, is often applied to the fields such as the system failure, safety precaution, communications and transportation, medical aid, emergency disaster relief, with social production, life inseparable.
Guard against theft and alarm system is by physical method or electronic technology, and automatic detection occurs in the intrusion behavior in the monitored area of deploying troops on garrison duty, and produces alerting signal, and points out operator on duty that the position, region of reporting to the police, the system that demonstration may take some countermeasures occur.Guard against theft and alarm system is the critical facility of the unscheduled events such as pre-rob-proof, theft.Once generation accident, just can accurately show the site of an accident in security control center by sound and light alarm signal, makes in taking emergency measures rapidly.Guard against theft and alarm system has formed security system together with gateway control system, closed-circuit TV monitoring system, caller interphone system and electronic patrol system etc. and guard against theft and alarm system consists of detector (claiming again burglar alarm), transmission channel and alarm controller three parts conventionally.Alarm detector processed and formed by sensor and signal, is used for detecting intrusion person intrusion behavior, and the device being comprised of electronics and mechanical part, be the key of guard against theft and alarm system, and sensor is the core parts of alarm detector.Adopt the senser element of different principle, can form variety classes, different purposes, reach the different warning sniffers of surveying object.Or household alarm mainly utilizes existing telephone network wireless phone GSM network, or by wireless wired mode, be communicated with owner's phone, or mobile phone, realize the electronic product of remote anti-theft function.Anti theft host and a series of alert detector that at present popular product mainly contains an acknowledge(ment) signal on the market form, as infrared eye.Door magnetic, smoke detector, infrared palisade etc.
In departments such as industrial or agricultural, fire-fighting, bank, hotel, market, space flight, often need to environment be monitored and be reported to the police, to prevent that stolen behavior from occurring, and bank, hotel etc., burglar alarm is vital especially.In burglary-resisting system in the past, generally adopt the technical measures such as pyroelectricity, microwave to gather human body invasion signal, these are when indoor application, there is good effect, yet in many occasions as places such as enclosure wall and courtyards, deploy troops on garrison duty, above carried measure rate of false alarm in practice is high, sometimes even cannot normally work.We know, in conventional environmental parameter, human body intrusion detector is very easy to be subject to the impact of environment and makes parameter change, maturation along with infrared ray and laser technology, many infrared theftproof and laser anti-thefts that apply to outdoor occasion start to be born, because light is linear transmission, at transmitting terminal transmitting light beam, middle as unobstructed, receiving end just can be received normal light beam; When having people's process to deploy troops on garrison duty region, light beam is blocked, and now receiving end just cannot receive light beam, thereby starts warning circuit work, reaches the object of warning.
summary of the invention
Object of the present invention is providing a kind of infrared transmitting circuit of infrared warning device.
The present invention is by the following technical solutions to achieve these goals:
A kind of infrared transmitting circuit of infrared warning device, it is characterized in that: comprise diode D5, infrared transmitting tube D6, resistance R 14-R17, resistance R 20, triode VT6-VT8 and power supply VCC, the anodic bonding power supply VCC of diode D5, the negative electrode connecting resistance R13-16 of diode D5 and resistance R 20, the emitter of triode VT6 is by the negative electrode of resistance R 20 connecting triodes, the collector of triode VT6 connects the anode of infrared transmitting tube D6, the plus earth of infrared transmitting tube D6, the collector of triode VT7 is connected with the base stage of triode VT8 by capacitor C 8, the base stage of triode VT7 is connected with the collector of triode VT8 by capacitor C 9, the collector of triode VT7 connects the negative electrode of diode D5 by resistance R 13, the base stage of triode VT7 connects the negative electrode of diode D5 by resistance R 15, the base stage of triode VT8 is by resistance R 14, the collector of triode VT8 connects the negative electrode of diode D5 by resistance R 16, the grounded emitter of triode VT8 and triode VT7, the collector of triode VT7 is connected with the base stage of triode VT6 by resistance R 17.
The present invention, because adopt above technical scheme, has following beneficial effect:
The measure of diode D5 fixed ampllitude improves output voltage waveforms amplitude stabilization, during multi-resonant oscillating circuit starting of oscillation, output voltage amplitude is little, according to the characteristic of diode, at this moment its forward AC resistance resistance is large, make enlargement factor larger, be conducive to starting of oscillation, after output voltage amplitude increases, electric current by diode increases, forward AC resistance is less, and enlargement factor is declined, thereby reaches the object of automatic voltage regulation output.
Safety protection alarm device based on infrared emitting, reception utilizes the transmitting reception of infraluminescence pipe and integrated circuit to form system, this system has simple in structure, reliability is high, easy to operate, can realize on-the-spot automatic monitoring, there is good practical value, without people is on the scene, just can carry out the automatic control operation to anti-theft security.Therefore, it can greatly reduce staff's workload on the one hand, increases work efficiency; Can promote personnel's reasonable arrangement on the other hand, economize on resources, especially human resources have great help.Can be enclosure wall in addition, the scenes such as courtyard provide quick and easy antitheft service, so that more reasonable arrangement and utilization.
Accompanying drawing explanation
Fig. 1 is radiating circuit figure of the present invention.
Embodiment
A kind of infrared transmitting circuit of infrared warning device, it is characterized in that: comprise diode D5, infrared transmitting tube D6, resistance R 14-R17, resistance R 20, triode VT6-VT8 and power supply VCC, the anodic bonding power supply VCC of diode D5, the negative electrode connecting resistance R13-16 of diode D5 and resistance R 20, the emitter of triode VT6 is by the negative electrode of resistance R 20 connecting triodes, the collector of triode VT6 connects the anode of infrared transmitting tube D6, the plus earth of infrared transmitting tube D6, the collector of triode VT7 is connected with the base stage of triode VT8 by capacitor C 8, the base stage of triode VT7 is connected with the collector of triode VT8 by capacitor C 9, the collector of triode VT7 connects the negative electrode of diode D5 by resistance R 13, the base stage of triode VT7 connects the negative electrode of diode D5 by resistance R 15, the base stage of triode VT8 is by resistance R 14, the collector of triode VT8 connects the negative electrode of diode D5 by resistance R 16, the grounded emitter of triode VT8 and triode VT7, the collector of triode VT7 is connected with the base stage of triode VT6 by resistance R 17.
Claims (1)
1. the infrared transmitting circuit of an infrared warning device, it is characterized in that: comprise diode D5, infrared transmitting tube D6, resistance R 14-R17, resistance R 20, triode VT6-VT8 and power supply VCC, the anodic bonding power supply VCC of diode D5, the negative electrode connecting resistance R13-16 of diode D5 and resistance R 20, the emitter of triode VT6 is by the negative electrode of resistance R 20 connecting triodes, the collector of triode VT6 connects the anode of infrared transmitting tube D6, the plus earth of infrared transmitting tube D6, the collector of triode VT7 is connected with the base stage of triode VT8 by capacitor C 8, the base stage of triode VT7 is connected with the collector of triode VT8 by capacitor C 9, the collector of triode VT7 connects the negative electrode of diode D5 by resistance R 13, the base stage of triode VT7 connects the negative electrode of diode D5 by resistance R 15, the base stage of triode VT8 is by resistance R 14, the collector of triode VT8 connects the negative electrode of diode D5 by resistance R 16, the grounded emitter of triode VT8 and triode VT7, the collector of triode VT7 is connected with the base stage of triode VT6 by resistance R 17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310603674.6A CN103680005A (en) | 2013-11-26 | 2013-11-26 | Infrared transmitting circuit of infrared alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310603674.6A CN103680005A (en) | 2013-11-26 | 2013-11-26 | Infrared transmitting circuit of infrared alarm device |
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| Publication Number | Publication Date |
|---|---|
| CN103680005A true CN103680005A (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310603674.6A Pending CN103680005A (en) | 2013-11-26 | 2013-11-26 | Infrared transmitting circuit of infrared alarm device |
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| CN (1) | CN103680005A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105659300A (en) * | 2016-01-11 | 2016-06-08 | 汤美 | Anti-intrusion system for campus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050073423A1 (en) * | 2003-09-22 | 2005-04-07 | Kim Walter Taehwan | Anti-theft and security system for computers |
| CN102930681A (en) * | 2012-10-25 | 2013-02-13 | 成都江法科技有限公司 | Infrared safety protection alarm device |
| CN202838571U (en) * | 2012-10-25 | 2013-03-27 | 成都江法科技有限公司 | Infrared emission circuit of infrared safety protection alarming device |
| CN202838575U (en) * | 2012-10-25 | 2013-03-27 | 成都江法科技有限公司 | Receiving alarming circuit of infrared safety protection alarming device |
-
2013
- 2013-11-26 CN CN201310603674.6A patent/CN103680005A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050073423A1 (en) * | 2003-09-22 | 2005-04-07 | Kim Walter Taehwan | Anti-theft and security system for computers |
| CN102930681A (en) * | 2012-10-25 | 2013-02-13 | 成都江法科技有限公司 | Infrared safety protection alarm device |
| CN202838571U (en) * | 2012-10-25 | 2013-03-27 | 成都江法科技有限公司 | Infrared emission circuit of infrared safety protection alarming device |
| CN202838575U (en) * | 2012-10-25 | 2013-03-27 | 成都江法科技有限公司 | Receiving alarming circuit of infrared safety protection alarming device |
Non-Patent Citations (1)
| Title |
|---|
| ***: "红外对射防盗报警器的制作", 《电子制作》, no. 6, 26 November 2010 (2010-11-26) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105659300A (en) * | 2016-01-11 | 2016-06-08 | 汤美 | Anti-intrusion system for campus |
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Application publication date: 20140326 |
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