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    • 5. 发明专利
    • Position detecting system
    • JP4569599B2
    • 2010-10-27
    • JP2007128510
    • 2007-05-14
    • パナソニック電工株式会社
    • 山中  浩弘通 後藤和男 澤田
    • G01S3/808G01S5/28
    • PROBLEM TO BE SOLVED: To provide a position detecting system which uses a known distance between floor face and ceiling face in building to detect position by allowing margins of error, and to enhance reliability in obtained position. SOLUTION: In this system, transmitter 1 is equipped with compressional wave transmitting section 11 loaded on a movable body moving on the floor face in building to intermittently transmit compressional waves. A receiver 2 is equipped with a compressional wave receiving section 21, installed at a position on the ceiling face to receive compressional waves. Position operation section 24 computes the arrival directions of the compressional waves received in the compressional wave receiving section 21, and further, computes the positional error range of the transmitter 1, inside a plane on which the transmitter 1 moves from the error range of the arrival directions. The center coordinates of the positional error range for the transmitter 1 are computed as the coordinate position of the transmitter 1, and then a maximum distance from this coordinate position among the error range is computed the maximum error. COPYRIGHT: (C)2007,JPO&INPIT