基于时域脉冲回波的通信线缆断点测试系统的设计与实现

Design and Realization of Testing System for Measuring Communication Cable Breakpoint Based on TDR

介绍一种基于时域脉冲回波(TDR)原理的通信线缆断点测试系统。该系统设计以AT89C52单片机为控制核心,以FPGA为测试主体发射接收脉冲,采集脉冲往返线缆时间,实现通信线缆断点位置的测量。该系统结构简单、操作简便、测距精度较高、应用效果良好。

The testing system for measuring communication cable breakpoint based on TDR (time domain reflection) is introduced. The system uses AT89C52-MCU as a control core,and FPGA (Field-Programmable Gate Array) as test main body to transmit and receive pulse,and collects the trip time of pulse in communication cable,so that the system realizes the communication cable breakpoint measurement. The system is in simple construction and easy operation.It offers precise distance measurement and excellent effects.