Patent
Model ship based autonomous navigation control simulation system and method of under-actuated unmanned ship
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In this paper, a model ship based autonomous navigation control simulation system and method of an under-actuated unmanned ship is presented, where an environment sensing sub system, a path programming sub system and a motion control sub system are combined to calculate the rudder angle and propeller rotating speed instruction needed in next navigation of the ship and control a steering engine and a propeller.Citations
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References
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Local following control method of multiple mobile robots
TL;DR: In this article, a local following control method of multiple mobile robots is presented, where the following robot depends on visual measurement for acquiring a relative distance d and an observed azimuth theta to the pilot robot; by combining with a given distance dp, the robot calculates a distance deviation e and a deviation change rate ec, adjusts the distance by using a fuzzy control method and outputs a control variable mu to realize speed control.
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Farmland multiple robot following land cultivation system based on stereo visual sense visual sense and method for the same
TL;DR: In this paper, a farmland multiple robot following land cultivation system based on a stereo visual sense visual sense and a method for the same is presented, which is used for identifying and positioning obstacles and positioning the self relative to other robots.
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Wave-generating towing type water tank
Tsutomu Honda,勤 本田 +1 more
TL;DR: In this paper, a wave-generating towing-type water tank is proposed to generate a wave in the longitudinal direction of the water tank and a traction device is used to tract an object to be towed along with the wave.
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Automatic obstacle avoidance device of USV (unmanned surface vessel)
TL;DR: In this article, an automatic obstacle avoidance device of a USV (unmanned surface vessel) is characterized in that an environment modeling unit is used for establishing an environment model in a navigation map according to real-time environmental data acquired by a radar unit, an image data acquisition unit and a GPS (global position system) unit respectively; the environment model comprises the current position, the speed and the pose of the USV in the navigation map as well as the position and the size of an obstacle on a scheduled route.
Patent
Filtering method for gyroscopic drift under collaborative navigation condition of multiple unmanned surface vehicles
TL;DR: In this article, a filtering method for gyroscopic drift under a collaborative navigation condition of multiple UAVs was proposed, where two master UASVs provide with high-precision inertial navigation devices alternate to transmit an underwater sound distance measurement signal with a time stamp to a slave UASV, and the slave unmanned surface vehicle uses the speed measured by a Doppler velocity sonar and the course measured by an MEMS (micro-electromechanical system) gyroscope to conduct track plotting, and calculates the distance between the master UAV and the
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