Multi-beam infrared railings sounder having intrusion directional recognition and sounding method

A technology of direction identification and infrared emitter, which is applied in the field of alarm manufacturing, can solve the problems of restricting the popularization of infrared fences, failing to achieve monitoring and alarm, and not having direction identification, etc., and achieves novel structural design, low false alarm rate, and convenient Promoted app performance
CN101383071AInactive Publication Date: 2009-03-11羊荣兴
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
羊荣兴
Publication Date
2009-03-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an anti-theft device by utilizing infrared detection and directions to trigger alarms, which can particularly effectively achieve the aim of sending off an alarm if illegal and no alarm if legal. A plurality of infrared emitters distributed in rectangular frames or non-rectangular frames and a plurality of corresponding infrared receivers form an infrared barrier detector net, and a front infrared receiving head and a rear infrared receiving head in each infrared receiver are respectively a triggering infrared receiving head and a non-triggering infrared receiving head; when a person or an object enters from the direction of the triggering infrared receiving head, an infrared triggering head triggers the infrared barrier detector net to send off the alarm, and when the person or the object enters from the direction of the non-triggering infrared receiving head, the infrared triggering head does not trigger the infrared barrier detector net to send off the alarm.
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Description

technical field

[0001] The invention relates to an anti-theft device using infrared detection and direction triggering alarm, especially capable of effectively identifying the direction of an intruder to achieve the purpose of legal non-alarm and illegal alarm, and belongs to the field of alarm manufacturing. Background technique

[0002] CN2710063Y, the name "mutual emission type multi-beam infrared fence detector", includes an alarm device and a pair of infrared monitors which are arranged facing each other and are electrically connected to each other. Each infrared monitor consists of a casing, a circuit board, a transmitter, and a receiver. , and a control circuit arranged on the circuit board. The shell is provided with a light-transmitting window, and the alarm device, transmitter and receiver are all electrically connected to the control circuit. In addition, the transmitter at any end of the pair of infrared monitors One-to-one correspondence is maintained with the t...

Claims

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