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Wireless technology is expected to be introduced into the medical care in recent year. Acquiring patient's vital information by using BAN (body area network), which is a network very near from human body, is a promising application. A radio technique which is expected in this network area is UWB (Ultra Wideband). In BAN, obstruction of a person for the visibility of the transmitter and receiver occurs...
We have developed a positioning system that uses a phased array sensor to measure the distance and direction of multiple landmarks relative to the position of a mobile robot so that the robot can self-localize. The positioning system can control the strength and the width of the beam from the phased array sensor and observe the multiple landmarks at the same time. By using the distance and direction...
A tracked mobile robot has high mobility and stability to get over rough terrain by changing its form according to environments. However, it is hard for an operator to control the mechanism skillfully by remote control. One of the solutions of the problem is an implementation of an autonomous control system. A detection of distributed contact points between the crawlers and an environment enable the...
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