Perimeter intrusion detection system based on optical fiber sensing

Abstract

The invention relates to a perimeter intrusion detection system based on optical fiber sensing. The perimeter intrusion detection system comprises a detecting optical cable, a detecting host computer, a signal processing host computer and a comprehensive monitoring platform. The detecting optical cable is laid on a fence. The detecting optical cable comprises a main detecting optical fiber and a standby detecting optical fiber. The detecting optical cable is used for detecting and sensing an invasion signal. The detecting host computer is provided with a main channel and a standby channel. The detecting host computer is used for receiving an analog signal which is transmitted from the detecting optical cable, performing denoising and filtering on the analog signal, and converting the analog signal to a digital signal. The signal processing host computer is used for receiving the digital signal which is transmitted from the detecting host computer and performing analysis on the digital signal. The comprehensive monitoring platform is used for receiving an analysis result which is transmitted from the signal processing host computer, displaying on a comprehensive interface and generating an alarm for reminding. The perimeter intrusion detection system can realize detection on the condition of fiber breakage and furthermore has a good monitoring effect and an accurate invasion positioning function.

Description

technical field [0001] The invention relates to the field of optical fiber sensing, in particular to a perimeter intrusion detection system based on optical fiber sensing. Background technique [0002] In some important areas, such as airports, military bases, weapons and ammunition depots, prisons, bank vaults, museums, power plants, oil depots, etc., in order to prevent illegal intrusion and various sabotage activities, traditional preventive measures are in these areas Set up some (such as iron fences, walls, wire fence nets, etc.) In the current situation where criminals use advanced science and technology, and criminal methods become more complex and intelligent, traditional prevention methods are difficult to meet the needs of key departments and key unit security work. Manpower prevention is often affected by factors such as time, region, personnel quality and energy, and loopholes and mistakes are inevitable. Therefore, the installation and application of advanced ...

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