输电线路防外力破坏预警系统的设计与实现

针对各种施工吊车、塔吊等超高车辆在输电线路线旁作业或线下通行以及各种违法、违章行为造成输电线路断裂、短路,导致停电等事故隐患,设计一种基于超声波测距的输电线路防外力破坏预警系统.该系统由线上测距机和现场告警终端构成,采用超声波测距获得输电线路与隐患目标之间的距离,利用短距离无线传输将距离测量信号传送至现场告警终端,由现场告警终端分析、判决、处理后执行语音报警,从而达到保护输电线路安全的目的.详细介绍了系统功能、系统构成、无线模块及其与单片机之间的接口编程等.

Design and Implementation of Early Warning System of Preventing External Damage for Transmission Line

In order to eliminte potential accidents like power off,which are usually caused by ultra-high vehicles operating or passing by under power transmission lines and by some illegal behaviors leading to the protection of power transmission machine and the fracture of the lines,an early warning system of preventing external damage for transmission line is designed based on ultrasonic ranging,which consists of on-line ranging machine and local warning terminal.The distances between the power transmission lines and hidden trouble points are acquired by utilizing ultrasonic.The distance signal is transmitted to the terminal by using the wireless transmission method.After analyzing and judging by the local warning terminal,the audio alert is triggered,and thus the protection of the power transmission lines is realized.The composition and function of the system,wireless module and its interface program with the microcontroller are introduced in detail.