【摘要】 介绍了用电话网实现灌区水情数据远程监测系统的设计方案,根据水位-流量曲线法测量原理计算出水位、流量数据,给出测点单片机控制Modem远程通信接口电路和软件设计框图。阐述了上位机与单片机的通信协议、上位机设计思路和实现方法。最后给出灌区水位、流量实时监测的运行结果。更多还原

【Abstract】 The design strategy of telephone network based remote regime data monitoring system of irrigated area is introduced.In accordance with the measuring principle of water level-flow rate curve,water level and flow data are calculated.The I/O single chip computer control,Modem remote communication interface circuit as well as software design flowcharts are given.The communication protocol between host computer and single chip computer,design concept and implementation of host computer are described.The operating results of real time monitoring for irrigated area water level and flow rate are given.更多还原