该系统是天津市塘沽区水利局与交通部天津水运工程科研所联合研制的,98年12月2日通过专家鉴定验收,其整体性能达到了国内领先水平。99年已投入批量生产,并在天津市11个区县及全国有关省市推广应用。系统主要由液位变送器、液位自记仪、电源等构成的观测子站(观测井)和数据收集 The system is jointly developed by Tianjin Tanggu Water Resources Bureau and Tianjin Water Transport Engineering Research Institute of Ministry of Communications. On December 2, 1998, the system was approved by experts and its overall performance has reached the leading level in China. 99 has been put into mass production, and in 11 districts and counties in Tianjin and the relevant provinces and cities to promote the application. The system is mainly composed of observation substations (observation wells) and data collection consisting of level transmitter, level self-recording instrument, power supply, etc.