Safety systems in rover controller
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This study’s objective was to determine the level of safety measures used in mobile robot prepared for teleoperation tasks in long distances and harsh environment. The vehicle under test was six-wheeled Mars rover equipped with robotic arm, designed to compete in URC (University Rover Challenge). The analysis has been subjected to the following: communication system, performance of onboard computer and emergency stop system. Communication system has been tested for message exchange speed under various data transmission protocols. Link between base station and mobile robot has immediate influence on onboard computer performance. Emergency stop is an indispensable part of hardware and software, it was tested in different state of the robot to ensure it robustness. This study demonstrates that for the teleoperation control, the UDP protocol is suitable for communication while at the same time allows to maintain low usage of a computing power at the on-board computer.
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