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Self-learning algorithm based on optical fiber vibration sensing alarming system

An alarm system and optical fiber vibration technology, which is applied in the field of self-learning algorithms to reduce the rate of false alarms and false alarms.

Active Publication Date: 2014-03-05
中国船舶重工集团公司第七〇五研究所
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Problems solved by technology

[0003] Due to the complexity of the optical fiber vibration sensing alarm system, the alarm system will inevitably produce false alarms and false alarms.

Method used

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  • Self-learning algorithm based on optical fiber vibration sensing alarming system
  • Self-learning algorithm based on optical fiber vibration sensing alarming system

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Embodiment Construction

[0018] The optical fiber vibration sensing alarm system in this embodiment is composed of a main control computer 1, an optical detection device 2, a sensor optical cable 3 and a functional module 4, etc., and senses and locates vibration signals that need to be alarmed in the monitoring area of ​​the security system.

[0019] The optical signal detection in the optical fiber vibration sensing and alarm system adopts the distributed optical fiber sensing method based on the two-way Mach-Zehnder interferometer. When the vibration signal acts on the sensing optical cable, the two DC light waves transmitted in opposite directions simultaneously produce the same phase change and are transmitted to the optical receiving unit along different paths. The optical receiving unit receives the two optical signals respectively and performs photoelectric conversion. After collection, data analysis and processing, the position, frequency, amplitude and other information of the vibration signa...

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Abstract

The invention provides a self-learning algorithm based on an optical fiber vibration sensing alarming system. Before actual using, background vibration signals and alarming vibration signals of a storing installing environment are detected and collected to obtain proper vectors of the vibration signals, and a proper vector database is established; during the actual working, the vibration signals are collected, and the proper vectors of the vibration signals are compared with the proper vectors in the proper vector database to judge whether an alarm needs to be given or not and to judge whether the proper vectors of the vibration signals need to be supplemented to the proper vector database or not. The proper vector database can be continuously supplemented, and therefore the failure alarm rate and the false alarm rate can be reduced.

Description

technical field [0001] The invention relates to the technical field of photoelectric signal identification and processing, in particular to a self-learning algorithm based on an optical fiber vibration sensing and alarm system. Background technique [0002] The optical fiber vibration sensing alarm system has the incomparable advantages of the traditional security alarm system, and has high detection sensitivity, accurate remote positioning, and relatively low cost. It is an emerging technology direction in this field at home and abroad, and has begun to be widely promoted and applied. Mainly used in border defense, perimeter security warning, home security system, pipeline protection, communication and power cable protection, government, judicial institutions (prisons), industrial parks, schools, star hotels and other fields. [0003] Due to the complexity of the application occasions of the optical fiber vibration sensing alarm system, the alarm system will inevitably prod...

Claims

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Application Information

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IPC IPC(8): G08B13/186
Inventor 李碧丽朱建国高卓于威姬雪峰朱云周
Owner 中国船舶重工集团公司第七〇五研究所
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