Fujian Aotai RDV Flow Meter: Strengthening the Monitoring and Early Warning Defense Line for Urban Mountain Flood Channels (November 2025)

Recently, the RDV radar velocity and FLOW METER from Fujian Aotai Automation Equipment Co., Ltd., with its multiple core advantages, has become a key piece of equipment for monitoring and early warning of flash flood channels in a certain city, providing technical support for urban flood control and protecting the lives and property of the public.

Flash floods are sudden and destructive, making real-time and accurate channel flow data crucial for prevention and control. It helps monitoring departments quickly determine the rate of water level rise and the intensity of water flow impact, identify flash flood risks in advance, and gain golden time for early warning issuance, personnel evacuation, and emergency rescue, minimizing the impact of disasters.

The equipment achieves accurate monitoring through a clear and efficient workflow:

1. Measure the surface velocity of water flow based on the radar Doppler effect (emitting radar waves and calculating the velocity by analyzing the Doppler frequency shift of the reflected waves), simultaneously obtaining the water level height using a radar Level gauge;

2. Combine the channel shape information collected by the telemetry terminal to automatically calculate the water flow area and actual flow rate;

3. Upload real-time data to the backend server via a 4G wireless network, providing data support for the early warning platform.

Meanwhile, the equipment boasts two major advantages that ensure stable operation:

- Solar power: Eliminating reliance on mains power, it can operate 24/7 even in remote ditches, in severe weather, or during power outages, ensuring uninterrupted monitoring;

- Non-contact measurement: Eliminating the need for contact with water flow, it avoids malfunctions caused by siltation, debris impact, and water corrosion, significantly reducing maintenance costs.