Abstract: This article introduces the application of an integrated underground water level monitoring terminal and its supporting system, which has the characteristics of micro-power consumption, miniaturization, multi-level protection and easy installation. It has been used in underground water level monitoring of Tuokou hydropower station in Hunan province. The underground water level monitoring terminal, which can access to kinds of water level sensors and a variety of safety monitoring sensors at the same time, were located near the piezometer tubes with distributed architecture and accessed to the vibrating type osmometers, and the remote data transmission by wireless public cellular network was realized. This scheme has greatly reduced the cable length and construction costs as well as improved the system stability and independent working time. Two years of running results show that the system is stable and reliable. It has laid a solid foundation for Tuokou hydropower station to obtain the monitoring data of surrounding area efficiently and achieve the perspective of wireless networked monitoring system.

Key words: micro-power consumption, groundwater, monitoring terminal

摘要： 介绍了一种微功耗、小型化、多级防护、易布设的地下水一体化监测终端及其配套系统在湖南托口水电厂河湾地下水安全监测中的应用。该地下水监测终端可同时接入多种水位传感器及工程安全监测类仪器，采用分布式架构布设于各地下水测点处，实际应用中接入振弦式渗压计，利用蜂窝公网进行远程数据传输,节省了线缆布设及土建成本，提高了系统稳定性及独立值守时间。两年的使用结果表明，该系统稳定可靠，为托口水电厂实现大坝及周边地下水位数据的高效获取和监测系统的无线网络化打下了良好基础。

关键词: 微功耗, 地下水, 监测终端