2023年2月第59卷第2期铁道通信信号RailwaySignalling&CommunicationFebruary2023Vol.59No.2基于PIC单片机的铁路继电器寿命试验系统王鑫,赵兴海,姚旺,孙海东摘要: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。关键词:铁路;继电器;寿命试验;可靠性;PIC单片机;状态码中图分类号:U284.71文献标识码:ARailwayRelayLifeTestSystemBasedonPICSingleChipMicrocomputerWANGXin,ZHAOXinghai,YAOWang,SUNHaidongAbstract:Theservicelifeoftherelayisthekeytechnicalindexofwhethertherelaycanoperatereliablyandsafelyforalongtime.Throughthetestandanalysisofthisindicator,thepotentialfailuremodeoftherelaycanbeeffectivelyfoundandthepotentialsafetyhazardcanbeeliminated.ThispapertakesPIC18F45K80singlechipmicrocomputerasthecore,carriesouttechnicalresearchonthelifetestofrailwayrelay,andputsforwardanewlifetesttechnology.Throughmonitoringtheworkingstateofrelaycontactsduringthetest,itcanidentifythereliabilityfaultssuchaspoorcontactandthesafetyfaultssuchascontactfusionweldingandcontactbridging.Comparedwiththetraditionallifetestmodeofonlyfinalinspectionandjudgment,thistechnologycanobtaintheactualfunctionalstateofthecontactinrealtime,whichisconducivetomoreaccurateevaluationofthereliabilityandsafetyleveloftherelay,timelydiscoveryofpotentialrisks,and王鑫:沈阳铁路信号有限责任公司高级工程师110025沈阳赵兴海:沈阳铁路信号有限责任公司高级工程师110025沈阳姚旺:沈阳铁路信号有限责任公司工程师110025沈阳孙海东:沈阳铁路信号有限责任公司高级工程师110025沈阳基金项目:辽宁省揭榜挂帅科技攻关项目(2021JH1/10400061)收稿日期:2022-09-22DOI:10.13879/j.issn.1000-7458.2023-02.22322扫...