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Pulse-adjusting infrared antitheft alarm system based on surge protection

A technology of surge protection and anti-theft alarm, which is applied in anti-theft alarms, alarms, and emergency protection circuit devices for limiting overcurrent/overvoltage, etc. It can solve problems such as false alarms and low stability, and achieve interference suppression , Strong anti-common mode interference ability, high stability effect

Inactive Publication Date: 2016-11-09
成都零一智慧科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 pulse-adjustable infrared anti-theft alarm system based on surge protection

Method used

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  • Pulse-adjusting infrared antitheft alarm system based on surge protection
  • Pulse-adjusting infrared antitheft alarm system based on surge protection
  • Pulse-adjusting infrared antitheft alarm system based on surge protection

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Embodiment

[0021] Such as figure 1Shown, 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 connected in series between the N pole of the diode D4 and the base of the transistor VT5, and the N pole of the diode D4 The connected surge protection circuit, the capacitor C7 whose positive pole is connected to the surge protection circuit and the negative pole is grounded, the resistor R10 connecte...

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PUM

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Abstract

The invention discloses a pulse-adjusting infrared antitheft alarm system based on surge protection. The system is characterized by mainly comprising an alarm BL, an optoelectronic coupler U, a triode VT3, a triode VT4, a triode VT5, a triode VT7, and a resistor R6 connected in series between a transmission electrode of the triode VT3 and a second input terminal of the optoelectronic coupler U. The system is highly resistant to common mode interference, can inhibit interference well, and is not affected by electromagnetic interference of the system itself. Compared with conventional infrared alarm systems, the system is more stable. While conventional infrared alarm systems give false alarms easily, the system increases the alarm accuracy from 80% in the prior art to over 95%.

Description

technical field [0001] The invention relates to an alarm system, in particular to a pulse-adjustable infrared anti-theft alarm system based on surge 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 disadvantages of the existing infrared anti-theft alarm system, such as low stability and prone to false alarms, and provide a pulse-adjustable infrared anti-theft alarm system based on surge protection. [0004] The purpose of the present invention is achieved thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B13/183H02H9/04
CPCG08B13/183H02H9/045
Inventor 向勇吴露朱焱麟王彦
Owner 成都零一智慧科技有限公司
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