Abstract:In order to improve the data quality of automatic rainfall forecasting in Chuzhou, and provide data support for flood control consulation at all levels, the methods of solving the problems in the course of operation of automatic rainfall forecasting station in Chuzhou are studied, it is of great significance to enhance the ability of defending against flood and drought in Chuzhou. Based on the actual operation and maintenance situation, this paper analyzes the upgrading and maintenance of RTU equipment in the automatic measuring and reporting station of rain water regime in the area under the jurisdiction of Chuzhou City, and mainly introduces two maintenance methods, which are the conventional integral equipment replacement and the WATER 2000B RTU to WATER 2000C RTU method, compare the weight of the carrying equipment, the time needed for maintenance, the cost of maintenance, etc., at the same time, this paper discusses the application of new maintenance modes such as automatic inspection of fault sites, remote operation and maintenance experience database in the upgrading and maintenance of RTU equipment in automatic measuring and reporting station of rain water regime. The results show that WATER 2000B RTU to WATER 2000C RTU method can improve the maintenance efficiency and reduce the maintenance cost, and the failure rate is decreasing year by year.