A research team from Technische Hochschule Nürnberg Georg Simon Ohm and Wasserwacht Bayern developed an AI-enhanced sonar system to identify people underwater [1].
This technology aims to reduce the time rescue teams spend searching for missing persons in water. Faster location of victims directly increases the chances of survival during emergency recoveries [1, 2].
The project, currently undergoing pilot testing in Bavaria, Germany, combines traditional sonar hardware with artificial intelligence [2, 3]. While standard sonar provides acoustic images of the underwater environment, these images can be difficult for human operators to interpret quickly. The AI component is designed to reliably distinguish human shapes from natural debris, or underwater structures [1, 3].
The collaboration involves the Technical University of Nuremberg and the Bavarian water rescue service, known as Wasserwacht Bayern [1, 2]. By integrating AI, the system can filter through visual noise and alert rescuers to potential targets with higher precision [3].
Rescue operations in lakes and rivers often face challenges such as low visibility and complex underwater terrain. The use of innovative sonar devices allows teams to scan larger areas more efficiently than manual diving searches [2, 3]. The pilot phase focuses on refining the AI's ability to recognize diverse body positions and depths in various water conditions [1].
Development of the system focused on the practical needs of first responders. The goal is to provide a tool that integrates seamlessly into existing rescue workflows without requiring extensive new training for the operators [1, 2].
“AI-enhanced sonar system that can reliably identify people underwater”
The integration of AI into sonar technology represents a shift toward automated target recognition in search-and-rescue. By reducing human error in image interpretation, these systems can narrow the search grid more quickly, which is critical in time-sensitive drowning incidents where every minute impacts the probability of a successful rescue.





