基于PIC单片机的铁路继电器寿命试验系统  

Railway Relay Life Test System Based on PIC Single Chip Microcomputer

作　　者：王鑫[1] 赵兴海[1] 姚旺 孙海东 WANG Xin;ZHAO Xinghai;YAO Wang;SUN Haidong

机构地区：[1]沈阳铁路信号有限责任公司,沈阳110025

出　　处：《铁道通信信号》2023年第2期86-90,共5页Railway Signalling & Communication

基　　金：辽宁省揭榜挂帅科技攻关项目(2021JH1/10400061)。

摘　　要：继电器的使用寿命是继电器能否长时间可靠、安全运行的关键技术指标。通过对该指标的试验和分析,可以有效发现继电器潜在的失效模式,消除安全隐患。以PIC18F45K80单片机为核心,对铁路继电器的寿命试验进行技术研究,提出一种新的寿命试验系统。通过监测继电器接点的工作状态,识别出接点接触不良、接点熔焊、接点桥接等故障。相比于传统的寿命试验只进行终检判断的模式,该技术能够实时获取接点实际功能状态,有助于更准确地评估继电器可靠性与安全性水平,及时发现潜在风险,为铁路继电器的研发、生产及全生命周期管理提供必要的技术依据。The service life of the relay is the key technical index of whether the relay can operate reliably and safely for a long time.Through the test and analysis of this indicator,the potential failure mode of the relay can be effectively found and the potential safety hazard can be eliminated.This paper takes PIC18F45K80 single chip microcomputer as the core,carries out technical research on the life test of railway relay,and puts forward a new life test technology.Through monitoring the working state of relay contacts during the test,it can identify the reliability faults such as poor contact and the safety faults such as contact fusion welding and contact bridging.Compared with the traditional life test mode of only final inspection and judgment,this technology can obtain the actual functional state of the contact in real time,which is conducive to more accurate evaluation of the reliability and safety level of the relay,timely discovery of potential risks,and provides the necessary technical basis for the development,production and life-cycle management of railway relays.

关 键 词：铁路 继电器 寿命试验 可靠性 PIC单片机 状态码 

分 类 号：U284.71[交通运输工程—交通信息工程及控制]