The hydraulic structure safety monitoring system established for pumped-storage hydropower stations under the jurisdiction of State Grid Xinyuan Group primarily concentrates on monitoring data management

including functions such as the input

inspection and review of monitoring data

the query

statistics and offline analysis of data. However

the system lacks the functions of online validity identifi_ cation of monitoring data and online diagnosis of monitoring system status

and does not possess the abil_ ity of online monitoring for dam safety. The author delineates the technical path to upgrade the online dam safety monitoring system based on the original hydraulic structure safety monitoring system. The up_ graded online monitoring system not only provides the application of dam safety management at the hy_ dropower station level

but also fulfills the needs of informatization of dam safety supervision and man_ agement

offering reference for online monitoring system construction for similar projects.