地下水监测系统电源值更电路的设计与实现

Design and Implementation of the Timely Power Inspection Circuit for Groundwater Monitoring System

针对地下水监测系统野外工作无人值守、更换电池困难、采样时间短、待机周期长的特点,采用值更电路控制系统在不同功耗状态自动切换的方法延长电源使用寿命。考虑到系统参数配置命令复杂、野外采样情况多样、通信时序不稳定的特性,提出了硬件多触发源与软件状态字配合工作的措施实现系统逻辑控制。引入值更电路的地下水监测系统整体功耗大幅度降低。实测结果验证了值更电路的可行性-表明值更方式必将成为野外监测行业的发展方向。

In accordance with the features of groundwater monitoring system, e. g. , unattended field operation, difficulty of replacing batteries, short sampling period, and long standby time, etc. , in order to extend the life cycle of batteries, by adopting the control system with timely on duty function to implement automatically switching under different power consumption status. Considering the complexity of system parameter configuring commands, the diversity of field sampling conditions and the instability of communication timing, the measures that coordinating hardware multiple trigger sources and software status words to implement logical control of the system. The overall power consumption of the groundwater monitoring system equipped with timely on duty circuit is greatly reduced. The result of practical tests verifies that this method is feasible, and it will be the developing trend for field monitoring industry.