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Seafox ROV |
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The term Remotely Operated Vehicle (ROV) can refer to any number of different types. They could be from the Mars Polar Lander to Jason Jr. that first explored the grand staircase of H.M.S. Titanic. Underwater ROVs come in may different flavors. Their purpose can be from mine hunting to pipeline maintenance, exploration to recreation. Sophisticated ROVs may have onboard sonar, underwater cameras, dexterous manipulator arms or scientific measuring and sensing instruments. Project description The description of this project was to take the Seafox design as described in Build your own underwater robot, Harry Bohm and Vickie Jensen, 1997 and design and implement upgrades requested by ATSA. These upgrades were: pulse width modulation for thruster speed control, multiplexed motor control to reduce tether diameter and joystick control. Upgrades Pulse width modulation (PWM) is an efficient method of controlling voltage output hence controlling the speed of the thrusters. Multiplexed motor control involves sequencing the operation of the thrusters so that only one thruster is on at any one time. It is hoped that by doing this, the ROV will still have a reasonable amount of functionality. Multiplexing the motor operation will also allow a thinner tether to be used since less current will be drawn, hence permitting thinner power conductors. A Sony® PlayStation® joystick control pad has been requested as the preferred method of controlling the ROV.
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All trademarks remain the property of their respective owners Site created by Curtis Schur, last updated 27/10/04 |
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