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High-stability infrared anti-theft alarming system based on buffer protection

An anti-theft alarm and high stability technology, which is applied in the direction of alarms that rely on interference with short-wavelength radiation, can solve problems such as false alarms and low stability, and achieve reduced impact, strong anti-common mode interference, and good interference Effect

Inactive Publication Date: 2016-12-21
成都零一智慧科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the disadvantages of the existing infrared anti-theft alarm system, such as low stability and prone to false alarms, and provide a high-stability infrared anti-theft alarm system based on buffer protection

Method used

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  • High-stability infrared anti-theft alarming system based on buffer protection
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  • High-stability infrared anti-theft alarming system based on buffer protection

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Embodiment

[0021] Such as figure 1 Shown, the present invention is mainly by alarm BL, optocoupler U, triode VT3, triode VT4, triode VT5, triode VT7, the resistor connected in series between the emitter of triode VT3 and the second input terminal of photocoupler U R6, a diode D3 whose P pole is connected to the base of the transistor VT3, and whose N pole is connected to the second input terminal of the optocoupler U, and a resistor R7 connected in series between the collector of the transistor VT4 and the collector of the transistor VT3 , the P pole is connected to the first output terminal of the photocoupler U, the N pole is connected to the diode D4 of the power supply, the resistor R9 is connected in series between the N pole of the diode D4 and the base of the transistor VT5, and connected in series to the transistor VT5 The resistor R10 between the collector and the N pole of the diode D4, the P pole is connected to the emitter of the transistor VT5, the diode D5 whose N pole is c...

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Abstract

The invention discloses a high-stability infrared anti-theft alarming system based on buffer protection. The high-stability infrared anti-theft alarming system is characterized by mainly comprising an alarm BL, a photoelectric coupler U, a triode VT3, a triode VT4, a triode VT5, a triode VT7 and a resistor R6, wherein the resistor R6 is connected between an emitter of the triode VT3 and a second input end of the photoelectric coupler U in series. The high-stability infrared anti-theft alarming system has high resistance to common mode interference, can effectively suppress interference without being affected by electromagnetic interference of the system itself, is higher in stability when compared with the traditional infrared alarming system, and can improve an alarming accuracy rate to 95% or above on the basis that the existing alarming accuracy rate is only 80% when compared with the situation that the traditional infrared alarming system is prone to generate a false alarm.

Description

technical field [0001] The invention relates to an alarm system, in particular to a high-stability infrared anti-theft alarm system based on buffer protection. Background technique [0002] As people pay more and more attention to safety issues, various security products have appeared on the market, among which infrared anti-theft alarm system is more popular because of its safety and concealment. However, the existing infrared anti-theft alarm system has low stability and is prone to false alarms, and its alarm accuracy rate is only 80%, which cannot effectively provide protection for people's personal and property safety. Contents of the invention [0003] The purpose of the present invention is to solve the defects of the existing infrared anti-theft alarm system, such as low stability and prone to false alarms, and provide a high-stability infrared anti-theft alarm system based on buffer protection. [0004] The purpose of the present invention is achieved through the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B13/19
CPCG08B13/19
Inventor 向勇朱焱麟闫宗楷臧亮
Owner 成都零一智慧科技有限公司
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