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Precise positioning light sensor alarm system

A light sensing and alarm system technology, applied in alarms, anti-theft alarms, instruments, etc., can solve problems such as poor adaptability, limited wiring, and sensitivity needs to be improved, and achieve a wide range, convenient and convenient network deployment, and convenient Determining the Effects of Intruders

Active Publication Date: 2017-12-29
南京业祥科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the system is based on optical wiring, the wiring is limited, the adaptability is not strong, and the sensitivity needs to be improved

Method used

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  • Precise positioning light sensor alarm system
  • Precise positioning light sensor alarm system
  • Precise positioning light sensor alarm system

Examples

Experimental program
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Embodiment 1

[0019] Embodiment 1: This embodiment provides a precise positioning light sensor alarm system, and its structural diagram is as follows figure 1 As shown, it includes a photodetector 1 and a photoreflector 2 arranged oppositely, and the distance between the photodetector 1 and the photoreflector 2 is 1 meter to 10 kilometers. When the intruder enters the protected area, the system will send out an alarm signal and can accurately report the intrusion distance.

[0020] The light detector 1 of this system includes a laser transmitter 3, a laser receiver 4, an alarm and a processor. When the system is working normally, it mainly transmits the light from the laser transmitter 3 to the light reflector 2, and the light reflected by the light reflector 2 is received by the laser receiver 4, thereby continuously obtaining the default detection distance; when an intruder enters the protection When the light received by the laser receiver 4 is the light reflected by the intruder, the d...

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PUM

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Abstract

The invention discloses an accurate-positioning light inductive alarming system, which comprises a light detector and a light reflector positioned oppositely, wherein the light detector comprises a laser transmitter, a laser receiver, an alarming device and a processor, the processor comprises a data acquisition device and a main controller, the main controller comprises a single chip microcomputer LM3S6911, the data acquisition device comprises a transceiver SP3481 and an auxiliary circuit, the transceiver SP3481 acquires laser signals of the laser transmitter and the laser receiver and transmits the signals to the single chip microcomputer LM3S6911, the single chip microcomputer LM3S6911 receives the laser signals through an RS485 interface for processing and determines whether to send out an alarm signal according to the results of processing. The accurate-positioning light inductive alarming system has a monitoring range varying from 1m to 10 km, is wide in range and accurate in alarm, can provide video images so as to determine intruder conveniently, and is low in cost and high in adaptive capacity.

Description

technical field [0001] The invention relates to a precise positioning alarm system, in particular to a precise positioning light sensing alarm system. Background technique [0002] At present, most positioning sensing alarm systems are based on optical transmission. Optical fibers can not only be used for signal transmission, but also can be used as sensors in security applications. While transmitting signals in optical links, only three core optical fibers are needed. Implementation of fiber optic sensing detectors. The patent application No. 201410804833.3 filed by our company in 2014 discloses an early warning and alarm system based on light transmission. Through a unique optical fiber link, using a 10mw / 1550 wavelength laser can transmit up to 220 kilometers of optical fiber link, that is, It is said that the current optical fiber link is designed to transmit from the 0-meter end to the 110-kilometer end within the optical cable, and then transmit back to the 0-meter en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B13/184
CPCG08B13/184
Inventor 刘龙海
Owner 南京业祥科技发展有限公司
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