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We developed a field management system with a field server that helps decrease farmers workload. It will be also enable the transfer of knowledge to the next generation of farmers in Japan. In order to reduce the burden of agricultural work, less frequent maintenance of the field server is desired. In this paper, we explain construction method of a local wireless network to cut the power consumption...
Microwave Doppler sensors commonly used in automatic-door systems have been used in a rover navigation system. A collimated microwave beam with an angular width of ±3° at a frequency of 24 GHz was emitted from a sensor (A) on a dish antenna 30 cm in diameter. Another sensor (B), which works as a detector, was installed on the rover. The rover was programmed to make a right turn when the microwave...
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