Optical fiber intelligent sensor used in security system

Abstract

The invention discloses an optical fiber intelligent sensor used in a security system. An optical cable is used as a sensing and detecting unit for outside accurate invasion point positioning, outside invasive object analysis and the like; when an invader tries to go across or damage a guardrail, an optical sensor array can receive ground vibration information, an optical fiber vibration signal mode and recognition system performs signal analytic processing of collected information, a specific invaded ground vibration type is generated according to the processing result, the numerical result is input into an alarming control master computer, the vibration information processing result is converted by the software system of the alarming control master computer into an alarming signal automatically, the alarming position is displayed in form of three-dimensional electronic map on a cable head, and at the same time, the alarming control master computer automatically extract security area videos, a linked matrix, a hardware video recorder and equipment to be linked such as on-site lighting and sound and light alarming equipment. Thus, video of the alarming site can be viewed as soon as possible so as to make a security policy quickly.

Description

technical field [0001] The invention relates to the field of sensors, and is an optical fiber intelligent sensing device used in security systems that can be applied to power plants, schools, airports, chemical companies, military, prisons, oil pipelines and other places with high border security requirements. 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 also become the most important issue affecti...

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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