China faces problems such as single water conservancy supervision methods and insufficient mobile public network coverage in ecological water areas. By leveraging Beidou short message communication technology and digital information collection technology, automatic hydrological measurement and reporting can be realized, significantly improving the capabilities of water conservancy and hydrological monitoring, query, early warning, and emergency response.
In severe weather or special disaster environments, all-weather and seamless automatic monitoring, real-time deformation monitoring, and hydrological condition monitoring via Beidou satellites enable early warnings and personnel evacuation, gaining time for rescue efforts. The backup channel of Beidou satellites ensures the timely transmission of hydrological information, providing solid support for the reliability of hydrological information during critical flood control periods. This solves the problem of monitoring blind spots caused by the inability to conduct manual monitoring under special disaster weather conditions.
The Beidou-3 Short Message Terminal, applied in the hydrological and rainfall monitoring system, enables unmanned and autonomous monitoring for ecological water conservancy. By real-time collecting, transmitting, and processing water conservancy monitoring data, it effectively enhances the emergency response capability for sudden incidents such as special disasters.
It can also conduct real-time monitoring and query of key real-time data including reservoir rainfall, water level, and information technology parameters. During the flood control period, it supports scientific and precise command.
Increasing investment in technological innovation and development, as well as the promotion and application of scientific and technological achievements, will facilitate the rapid development of large-scale Beidou applications.
Advanced equipment is used to monitor the dynamic changes at various reservoir hydrological and rainfall monitoring points and mountain flood disaster prevention points, so as to obtain relevant parameters for analysis and early warning. Among the applied equipment, the Beidou-3 data transmission terminal, Beidou communication command device, and integrated communication RTU are used for water conservancy and hydrological monitoring.
There are two data collection methods. The first is a combination of a telemetry terminal and a Beidou data transmission terminal. The second is an integrated communication terminal, which is equipped with two data transmission links: Beidou short message and mobile communication network. Managed by the smart ecological water conservancy platform system, it can realize the collection of diverse ecological and water conservancy data. The short message function of Beidou enables two-way communication—within the service coverage, "short messages" can be sent to Beidou satellites. 
The Beidou-3 Short Message Terminal is a short-message communication technology based on the Beidou Satellite System, featuring advantages such as fast information transmission, wide coverage, and high reliability. In water conservancy and hydrological monitoring, the Beidou-3 Short Message Terminal can be applied in the following aspects:
By transmitting water level data via Beidou short messages, real-time monitoring of water level changes in reservoirs, river channels, etc. can be realized. It enables timely early warning of water level exceeding the warning line, thus safeguarding people's lives and property.
Beidou short messages can be used to transmit rainfall data, enabling real-time monitoring and early warning of rainfall volume, and providing a scientific basis for flood control and drought relief.
By transmitting water storage data via Beidou short messages, real-time monitoring of water storage facilities such as reservoirs and sluices can be realized, providing a scientific basis for water resource management.
In conclusion, the application of the Beidou-3 Short Message Terminal in water conservancy and hydrological monitoring enables real-time transmission of hydrological monitoring data, timely early warnings, and scientific management, providing strong support for the protection and utilization of water resources.
