R2100 sensor can provide an increased safety zone for Robot mower, it is necessary to use the advanced distance sensor that scans all kind of targets and receives data for the automatic control system and update the farm management information system. In this study, to determine the best height and view of the distance sensor. For use in modern precision agricultural automatic safety control system, a static and dynamic tests using a box , Cylinder, Cone and person as four target samples which were set at various points and lines were set at 0°,14°,44°,74°and 88°angle with the reference of the sensor at center. The distance sensor was set at 240mm,420mm and 850mm height, respectively. Tests and Statistical analysis of results showed that the accuracy of the new distance sensor mounted on Tomi's robot mower is up to 98.04%,and as far as the new safety system, it was set at 420mm height that would be best location for scanning all kinds of obstacles, In order to evaluate the sensor's behavior, the practical field working conditions were imitated and the dynamic test showed the similar results with the static test. KeywordsDistance sensor; Safety system; Target samples; Tests ; Analysis.
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