A high-tech unmanned watercraft developed by Fraunhofer Institute autonomously maps bodies of water, producing detailed 3D maps of seabeds and shorelines.
The autonomous watercraft utilizes a combination of sensors, including GPS, acceleration and angular rate sensors, and a doppler velocity log , which allows the vessel to navigate autonomously. Laser scanners and cameras capture above-water details, enabling the creation of high-precision 3D models of the surroundings. For underwater mapping, a multi-beam sonar is integrated into the sensor system, producing a complete 3D model of the seabed.
The lightweight watercraft, measuring 2 m x 1.5 m x 1 m and weighing 64 kg, adeptly avoids obstacles using laser scanners and sonar. Real-time 3D models are generated during the journey, allowing for dynamic navigation, while a second high-precision 3D model is computed after data evaluation.
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