A remote control infrared emission circuit of an infrared alarm device
A technology of infrared emission and infrared alarm, applied in the direction of alarms, anti-theft alarms, instruments, etc., can solve the problems of high false alarm rate and failure to work normally, and achieve the effect of high reliability, convenient anti-theft service and convenient operation.
Active Publication Date: 2015-08-05
四川博盛信科科技有限公司
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Problems solved by technology
In the past anti-theft systems, technical measures such as pyroelectric and microwave were generally used to collect human body intrusion signals. These have good results when applied indoors. The proposed measures have a very high rate of false alarms in actual use, and sometimes even fail to work properly
Method used
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Embodiment Construction
[0017] A remote control infrared transmitting circuit of an infrared alarm device, characterized in that: a signal transmitting terminal, a signal receiving terminal and an infrared transmitting terminal,
[0018] Signal transmitter: HF-15 infrared transmitter module, including HF-15 chip, 5 pins and 6 pins of HF-15 chip are connected to the power supply through the switch SK, 3 pins and 4 pins are connected to the light-emitting diode model PH303 , pin 1 and pin 2 are connected through potentiometer RP1;
[0019] Signal receiving end: including HJ-15 chip, the 1-pin and 2-pin of HJ-15 chip are connected to the infrared receiving tube of PH302, the 3-pin and 6-pin of HJ-15 chip are indirect relay KA, and the normally open of relay KA The closed contact KA is used as the power switch of the infrared transmitter;
[0020] Infrared emitting terminal: including diode D5, infrared emitting tube D6, resistors R13-R17, resistor R20, triode VT6-VT8 and power supply VCC, the anode of ...
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The invention relates to the field of security technologies and provides a remote control infrared transmitting circuit of an infrared alarm device. The remote control 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 the resistor R15.
Description
technical field [0001] The invention relates to the field of security technology, and provides a remote control infrared emitting circuit of an infrared alarm device. Background technique [0002] With the establishment of my country's market economy system and the development of science and technology, my country's security industry continues to advance, and the security market has become an emerging high-tech market with great potential that reflects the close integration of public security and technology defense. Development offers rare opportunities. And the domestic security industry is rapidly integrating with international standards. Our country has the largest security product market in the world, which is our greatest advantage. The security industry in developed countries in Europe and the United States has developed rapidly on the basis of the original, and its rapid growth can also be foreseen in other developing countries, such as Asia, Latin America, Eastern Eu...
Claims
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Inventor 高晓龙
Owner 四川博盛信科科技有限公司