J. Colby Johnson

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In this paper, we propose a sweeping sonar obstacle avoidance method for autonomous navigation of mobile robots. The sweeping of the single sonar module using a motorized stage increase the coverage and reduce the electronics for ultrasonic modules. The orientation of the vehicle is determined using digital compass. The battery status is continuously(More)
Master slave manipulators have been deployed in hot cell area of nuclear power plants for efficient handling of irradiated materials. For handling the manipulator, the operator needs to see the hot cell environment. Through a lead glass or camera, operator sees the environment and takes the control of manipulator. To enhance the area of visibility and to(More)
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