Abstract
In security-critical situations in the maritime area, ship-based deployment of remotely piloted aircraft systems could enable automated acquisition of aerial images and other sensor data. If intervention is required, response times of federal institutions could be shortened significantly without endangering personnel. This paper gives an overview of research undertaken at DLR in cooperation with the German Federal Police for Maritime Tasks. For a safe ship deck landing of an unmanned rotorcraft a combination of precise navigation and tethered landing system has been developed and patented. Relative double-difference algorithms are used for precise navigation of the rotorcraft to a hover point over the ship deck. From there, an electromagnetic winch is lowered from the rotorcraft that connects to the ship deck. The resulting cable connection is used for aligning the rotorcraft during landing and securing it on the ship deck afterwards. First demonstrations on a real ship deck show the feasibility of the system.
Highlights
The German Federal Police for Maritime Tasks (Bundespolizei See) is responsible for border control in North and Baltic Sea, surveillance of maritime traffic, and investigation of violations against environmental or fishing regulations [1]
The MaRPAS landing system consists of two devices: (1) a portable winch that can be lowered from the remotely piloted aircraft systems (RPAS) to the landing deck where it connects to the ship and (2) a connection unit mounted under the RPAS between the landing gear
This paper has presented a landing system for an unmanned rotorcraft (RPAS) being operated from a ship deck
Summary
The German Federal Police for Maritime Tasks (Bundespolizei See) is responsible for border control in North and Baltic Sea, surveillance of maritime traffic, and investigation of violations against environmental or fishing regulations [1]. The common objective is the concept, simulation and execution of precision approaches to a ship deck, even in severe weather. This includes research on legislative requirements, demand analysis of the German Federal Police, and. Two main techniques have been chosen to support ship deck landings: First, a landing system with a newly developed cable winch, and second a precise navigation using global navigation satellite systems (GNSS). The combination of both allows for accurate navigation during missions as well as safe landings on moving landing platforms. In the ongoing followup project MaRPAS 2 the landing system is further refined and adapted to more realistic maritime scenarios, including the landing on a fully moving platform
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