Split type AUV (Autonomous Underwater Vehicle) system and application method thereof

Through the ultra-short baseline USBL acoustic positioning and satellite positioning module of the split AUV system, combined with the magnetic fixture and visual positioning module, the problems of inaccurate positioning and cable obstruction of autonomous underwater robots are solved, high-precision positioning and stable connection are achieved, and autonomy and obstacle avoidance are improved.

CN120503944AActive Publication Date: 2025-08-19GUANGDONG UNIV OF TECH
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Patent Information

Application Number
CN202510729159.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-03
Publication Date
2025-08-19
Estimated Expiration
2045-06-03

AI Technical Summary

Technical Problem

Existing autonomous underwater robots obtain satellite positioning signals through wired water surface buoys, resulting in inaccurate positioning and inability to obtain the relative position between themselves and the buoys independently. The connecting cables are easily obstructed by obstacles, reducing autonomy.

Method used

The split AUV system is adopted, combined with the ultra-short baseline USBL acoustic positioning and satellite positioning module, and the accurate positioning and docking of the autonomous underwater robot and the float system is achieved through the magnetic fixture and visual positioning module. The cable reel motor is used to maintain the stable cable length, and the multi-beam imaging sonar and side-sweep sonar are combined to avoid obstacles.

Benefits of technology

It realizes high-precision positioning and stable connection of autonomous underwater robots, improves autonomy, avoids the risk of cable entanglement, and adapts to complex undersea environments.

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Abstract

A split type AUV system comprises an autonomous underwater robot system and a buoy system, the autonomous underwater robot system comprises an electric control sealed cabin, a multi-beam imaging sonar module, a magnetic attraction fixing device, a visual positioning module, an ultra-short baseline USBL transponder beacon, a single-beam sonar module, a depth module, an underwater laser range finder, a battery sealed cabin and a driving unit; the buoy system comprises an ultra-short base line USBL beacon, a floating platform, a cable reel motor, a cable reel, a satellite positioning module, a buoy system electric control cabin, a side scan sonar, an Aruco two-dimensional code plate, a driving unit, a permanent magnet block and a battery cabin; the invention aims to provide an underwater navigation positioning system of a split type AUV (Autonomous Underwater Vehicle), which assists in acquiring the accurate position of an underwater robot.
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