On July 28, a sudden heavy rainstorm hit Yichun City, China, causing the river to rise rapidly and trapping three people on a sandbank. The Yichun City Fire and Rescue Brigade Command Center received an emergency call at 7:07 PM and immediately dispatched 20 rescue personnel to the scene, equipped with drones, assault boats, and inflatable rafts.
The rescue team arrived near the sandbank at 7:50 PM. To carry out the search and rescue operation efficiently, the rescue personnel divided the river area into three major search zones using the DJI Flighthub2 , based on the approximate location provided by the trapped individuals. Three rescue teams conducted a synchronized search, with aerial and ground coordination, significantly improving the efficiency of the rescue operation.
At night, visibility along both sides of the river was extremely poor. However, thermal imaging cameras are not affected by light conditions and can detect targets even in the dark. The three rescue teams utilized DJI Mavic 3T, Matrice M30T, and DJI M350 RTK drones equipped with Zenmuse H30T cameras to conduct synchronized aerial searches across the three designated areas.
At 8:10 PM, a suspected heat source appeared on the drone's thermal imaging screen. The rescue personnel immediately maneuvered the drone closer for reconnaissance and confirmed that the heat source was indeed the three trapped individuals. The rescue team then used the drone to mark the precise location of the trapped people.
Poor visibility at night, strong winds over the water, and the turbulent river flow made the rescue operation extremely challenging. After considering various factors, the rescue team decided to use the Mavic 3T drone equipped with a small spotlight to guide the assault boat as it entered the river upstream to create a rescue pathway. At the same time, they used the drone's thermal imaging camera for continuous reconnaissance, ensuring the entire rescue operation proceeded smoothly.
At 10:02 PM, the search and rescue boat finally reached the sandbank where the trapped individuals were located and successfully transferred them onto the boat. By 10:30 PM, all three individuals had safely reached the shore.
In this rescue operation, the drone's thermal imaging system quickly scanned 3 kilometers of the river at night and accurately identified the location of the trapped individuals within 20 minutes. Additionally, in the challenging rescue environment, the coordination between the drone and the boat enabled the assault boat to reach the target point in just 10 minutes. This significantly improved the efficiency and success rate of the rescue, ensuring the safety of the trapped individuals.
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