水情自动测报系统现地传感器信息复用技术研究及工程应用  

The Research and Application for Information multiplexing technology of Reservoir Dispatching Automation System

作　　者：舒凯[1] 徐博 王知嘉[3] 

机构地区：[1]国网电力科学研究院/南京南瑞集团公司,江苏省南京市210003 [2]徐州市水务局,江苏省徐州市221002 [3]中国电力科学研究院新能源研究所,江苏省南京市210003

出　　处：《水电自动化与大坝监测》2014年第2期59-63,共5页HYDROPOWER AUTOMATION AND DAM MONITORING

摘　　要：本文介绍了传统水情自动测报系统建设方法及该项目的建设需求,提出了现地传感器复用技术的设计原则,详细阐述了4~20 mA、Modbus-RTU、脉冲量等常规信号的复用方案及实现方法,并结合工程说明了RS-485总线信号衰减、噪声干扰、浪涌干扰等问题的解决方法。经工程应用实践,该方案设计合理,系统运行稳定。The traditional construction method of reservoir dispatching automation system and the project demand are introduced,the design principles of field sensor information multiplexing technology are put forward,the design and realization of 4-20ma、ModbusRTU、pulsing signal multiplexing technology are expounded,the solutions for attenuation,imitating malfunction and controlling the impulse signal in RS-485 bus are described in detai1 based on engineering experience. The field application shows the design is reasonable and the operation is stable.

关 键 词：水情自动测报系统 RS-485总线 噪声干扰 Modbus-RTU通信协议 

分 类 号：P335[天文地球—水文科学]