发明名称 変位測定装置及び光無線通信システム
摘要 PROBLEM TO BE SOLVED: To realize miniaturization and measurement accuracy improvement of a tracking mechanism used in optical wireless communication systems.SOLUTION: A transmitter unit 11 is provided with two distance sensors 14, 15 and a receiver unit 21 is provided with a position index unit 23 and a reference height unit 24. The position index unit 23 is three-dimensionally formed and is divided into a plurality of areas, each of which has a different height, and stores the relation between the height with reference to the reference height unit 24 and the position of each area as displacement measurement table data. Distance to one of the areas of the position index unit 23 and distance to the reference height unit 24 are measured by the respective distance sensors 14, 15, and the position of the area of the position index unit 23 measured by the first distance sensor 14 is identified on the basis of the difference between the two measured distance values and the displacement measurement table data, to determine displacement magnitude and a displacement direction of the receiver unit 21. An optical axis displacement correction function is activated to correct the optical axis displacement between the transmitter unit 12 and the receiver unit 22 on the basis of the determined result.
申请公布号 JP5860247(B2) 申请公布日期 2016.02.16
申请号 JP20110184126 申请日期 2011.08.25
申请人 富士機械製造株式会社 发明人 廣田 重元;長坂 伸夫
分类号 G01B11/00;H04B10/11 主分类号 G01B11/00
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