Intelligent optical fiber sensor applied to security systems

Abstract

The invention discloses an intelligent optical fiber sensor applied to security systems. The intelligent optical fiber sensor is characterized in that an optical cable is used as a sensing detection unit for carrying out the precise positioning and object analysis and the like on ambient pressure and vibration; an optical fiber sensor array receives pressure and vibration information; an optical fiber sensing signal mode and recognition system carries out signal analysis processing on acquired data, and a specific ground sensing type is produced according to the obtained processing result; the numerical results enter an alarm control host, the sensing information processing result is automatically converted into an alarm signal by virtue of a software system of the alarm control host, and an alarm position is displayed in a three-dimensional electronic map mode on a tripod head; meanwhile, the alarm control host automatically extracts devices such as defence-area videos, linkage matrixes, digital video recorders, field visual and acousto-optic alarms and the like which are required to be linked, therefore, the video of an alarm field can be checked timely so as to make a protection strategy quickly.

Description

technical field [0001] The invention relates to the field of sensors, and can be used in power plants, schools, airports, chemical enterprises, military affairs, prisons, oil pipeline safety, bridge safety, highways, high-speed rail lines and other places with high safety requirements in the security system Applied optical fiber smart sensing device. Background technique [0002] With the increasing complexity of the social environment, in today's society where information technology is developing day by day, the problem of social security is even more serious. Various accidents that endanger social security, whether man-made or natural disasters, occur frequently, bank ATM security issues, oil pipeline anti-theft , Prison security issues, residents' personal and property safety issues, school security issues, especially the recent "kindergarten incident" have raised the issue of maintaining school building security to an unprecedented height. Social security issues have al...

AI Technical Summary

Problems solved by technology

Since the infrared beam hits the transmitter and the receiver by the blocking time of the infrared beam to judge whether there is an alarm, the judgment of the signal lacks sufficient judgment, and there will be a large proportion due to light, weather, floating objects in the air, etc. The phenomenon of false alarms, especially in the deployment of infrared intrusion detectors in a large range of borders, the excessively high false alarm rate causes serious waste of police force

At the same time, the main disadvantages of current wireless sensors are: (1) limited communication capability; (2) limited power supply energy; (3) limited computing power; (4) large number of sensors and wide distribution

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