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GMA welding is widely used in many different fields such as automotive, shipbuilding and plant industry and its demand is growing day by day because of its high productivity and quality with cost reduction in manufacturing process. Nevertheless, the studies have been reported just a few cases so far due to its difficulties in expressions for the complexity of physical phenomena and in the derivation...
This paper describes a new sensor system for improving the accuracy of the range information using multiple IR range sensors. Environment and obstacle sensing is the key issue for mobile robot localization and navigation. Laser scanners cover 180deg and accurate but are too expensive. Radial range sensors such as laser scanner, IR scanner and ultrasonic range sensor ring have blind spots so that small...
Estimating the configuration is one of the key issues for successful mobile robot navigation. Dead-reckoning is simple and fast but it can lead to inaccurate or unreliable estimates. Range sensors are widely used in known environment for localization, but it may not always work due to sensor range limit. Optical flow sensor such as the optical mouse gives accurate relative movement but it requires...
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