用采系统RS485总线混合接法及故障分析处理方法  

The Mixed Connection Method of RS485 Bus Connection and Fault Analysis and Processing of Electric Information Acquisition System

作　　者：李红柳 庄哲 伍言 周承辉 LI Hongliu;ZHUANG Zhe;WU Yan;ZHOU Chenghui(Metrology Department,Chengdu Power Supply Company,SGCC,Chengdu 610000,China;Shenzhen KeymantekPublic Limited Company,Shenzhen Guangdong 518129,China)

机构地区：[1]国网成都供电公司客户服务中心计量部,成都610000 [2]深圳市科曼信息技术股份有限公司,广东深圳518129

出　　处：《电子器件》2018年第1期177-184,共8页Chinese Journal of Electron Devices

摘　　要：为解决故障点及故障原因查找的问题,提出新型混合接线用采系统通信拓扑连接图,并进行新型模式下传输线模型分析;根据现场实际故障情况,对故障进行分类,并将通讯上行、下行故障予以单独分析,将故障分析法分为自动轮检模式及自动排查模式两种,并对双层次多维度进行解析,提高故障模型匹配度,以提高故障处理效率;通过验证,其中模拟波形与实际波形全完匹配及监测通信成功率的大幅提高,证明了混合接线法的可靠性及故障分析处理方法的准确性。In order to solve the fault point and fault reasons of the problems,a new mixed connection map production system communication topology and a new mode of transmission line model have been put forward.According to the actual situation of the fault,classifying the fault will be analyzed separately to uplink and downlink communication fault,the fault analysis method are divided into two kinds:automatic wheel inspection mode and automatic investigation mode of two kinds of double layer,multi dimension analysis devided into improving the matching degree of fault model and the fault handling efficiency.The experimental results show that the simulation waveform and the actual waveform are all matched and the success rate of monitoring communication greatly increased.It proves the reliability of mixed wiring method and the accuracy of fault analysis and treatment.

关 键 词：电能量信息采集 新型混合接线法 采集故障分析 传输线模型 

分 类 号：TM933.4[电气工程—电力电子与电力传动]