Fujian Aotai Automation: Radar Doppler Non-Contact Monitoring Solution Provides Reliable Support for Safe Monitoring of Mountain Flood Channels!
2026-03-04
Monitoring streamflow in flash flood gullies is a crucial foundational task for flash flood disaster prevention, hydrological early warning and forecasting, and flood control and dispatch. Timely and accurate acquisition of changes in channel velocity, water level, and flow rate is of paramount practical significance for scientifically assessing disaster risks, issuing early warnings in advance, safeguarding the lives and property of the public, and enhancing regional disaster prevention and mitigation capabilities. Addressing the practical challenges posed by complex mountainous gully topography, harsh environmental conditions, difficulties in power supply, and operational maintenance challenges, Fujian Aotai Automation Equipment Co., Ltd. launched an integrated monitoring solution featuring radar and Doppler velocity-flow sensors in March 2026, leveraging advanced technology to enhance field hydrological monitoring capabilities.
The core of this solution is based on the radar Doppler velocity measurement principle. The device transmits electromagnetic wave signals toward the water surface; as the water flow moves, it causes a shift in the frequency of the reflected echo. By precisely detecting the Doppler frequency shift of the echo, the device calculates the surface flow velocity of the water. Combined with water level monitoring data, the system performs model-based computations to generate real-time discharge information. The measurement process does not require direct contact with the water body, enabling stable operation even under harsh conditions such as complex water flows, high sediment concentrations, and abundant floating debris. The system boasts high measurement accuracy and rapid response speed, accurately reflecting changes in hydrological conditions in mountain gullies and flash flood channels.
The entire monitoring system is powered by a 12-volt DC solar energy source, enabling long-term stable operation in remote field environments without access to grid electricity and effectively addressing the power supply challenges faced by conventional monitoring equipment. The device features a built-in 4G wireless transmission module that can reliably upload real-time data on flow velocity, water level, and discharge volume to a server, facilitating remote data transmission, centralized data aggregation, and continuous data recording—providing a continuous and reliable data foundation for flood control command and management.
Thanks to its non-contact measurement approach, the device is unaffected by debris, sediment buildup, or other impurities in the water, significantly enhancing operational stability. As a result, the workload for routine inspections and maintenance is markedly reduced, making operation and maintenance relatively simple and substantially lowering long-term operating costs. The overall design of the solution is compact, easy to install, highly adaptable, and exceptionally reliable. It can be widely applied to complex hydrological monitoring scenarios such as mountain flash flood channels, natural river courses, and small watersheds, effectively boosting the automation and intelligence levels of flow monitoring in these areas. This provides robust technical support and data assurance for flash flood hazard early warning, hydrological monitoring, and flood control and disaster reduction efforts.
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