Cooperative caging using autonomous aquatic surface vehicles

— We present a study on the use of cooperative robots to execute a caging mission on the water’s surface. In particular, we consider the problem of using two robotic boats (under-actuated autonomous surface vessels) connected with a floating rope, to ’capture’ a floating object from a known location on the water’s surface and ’shepherd’ it to a designated position. This paper focuses on the cooperative control strategy of the two vessels. Each vessel’s behavior is governed by a supervisor software module that handles the communication with the other vessel and controls all elementary tasks that compose the overall mission. The elementary tasks, specifically developed for under-actuated vessels, are arranged by priority, and merged using a behavior-based approach, namely the NullSpace based Behavioral control. The proposed technique is validated by field experiments with two autonomous robotic boats on the surface of a lake.

• Type: Journal
• Year: 2010
• Where: ICRA
• Authors: Filippo Arrichiello, Hordur Kristinn Heidarsson, Stefano Chiaverini, G. Stefano Sukhatme
• Keywords: Autonomous Surface Vessels, Elementary Tasks, ICRA 2010, Robotic Boats, Robotics