基于无线智能振动传感器的地埋电缆防外破监测预警系统设计

Design of Monitoring and Early Warning System for Underground Cable Breakage Prevention Based on Wireless Intelligent Vibration Sensor

随着城市建设的快速发展,地下电缆在电网系统中的比重越来越大,但是电缆时常受到人工挖掘、机械挖掘和非法入侵等第三方外力破坏,严重影响了电缆运行的安全性和可靠性,因此保障电缆供电不受外力破坏成为电力运行部门亟须解决的问题。首先基于智能无线振动传感器设计了离散、分布式无线智能振动采集系统,监测地下电缆系统所处环境的振动信号,然后通过振源智能识别技术对采集的振动信号进行特征分析和特征提取,智能识别报警信号,最后由智能电缆桩和后台软件组成了地埋电缆防外破振动监测预警系统,实现了地埋电缆运行过程中外破事件的智能预警。

With the rapid development of urban construction,the proportion of underground cables in the power grid system is increasing.However,the cable is often damaged by third-party external forces such as manual excavation,mechanical excavation and illegal intrusion,which seriously affects the safety and reliability of cable operation.Therefore,ensuring that the cable power supply is not damaged by external forces has become an urgent problem for the power operation department.Firstly,a discrete and distributed wireless intelligent vibration acquisition system is designed based on intelligent wireless vibration sensors to monitor the vibration signal of the environment where the underground cable system is located.Then,the characteristics analysis and feature extraction of the collected vibration signal are carried out through the vibration source intelligent recognition technology,and the alarm signal is intelligently identified.Finally,the intelligent cable pile and background software composed of the anti-external damage vibration monitoring and early warning system of buried cable,which realizes the intelligent early warning of external breaking events during the operation of buried cable.