To correctly perform positioning using a beacon signal by suppressing a harmful effect due to a reflection wave of the beacon signal.SOLUTION: A positioning device comprises: a beacon transmission unit which is attached to a positioning object and transmits a beacon signal; a reception unit which is installed at each of a plurality of predetermined installation positions and receives the beacon signal transmitted from the beacon transmission unit; a server unit which acquires a measurement value of the beacon signal by the plurality of reception units that has received the beacon signal and specifies a position of the beacon transmission unit on the basis of, the plurality of measurement values; a reference transmission unit which is installed at a known position that becomes reference in advance and transmits the beacon signal; an error calculation unit which calculates an error between the position of the reference transmission unit specified by the server unit and the known position; and a correction unit which corrects the position of the beacon transmission unit specified by the server unit by using the error calculated by the error calculation unit.SELECTED DRAWING: Figure 2

    【課題】ビーコン信号の反射波による悪影響を抑制することで、ビーコン信号を用いた測位を正確に行うことができる。【解決手段】測位装置は、測位の対象物に取り付けられビーコン信号を発信するビーコン発信部と、予め定められた複数の設置位置にそれぞれ設置され、ビーコン発信部から発信されるビーコン信号を受信する受信部と、ビーコン信号を受信した複数の受信部よりビーコン信号の測定値を取得し、複数の当該測定値に基づきビーコン発信部の位置を特定するサーバー部と、基準となる既知の位置に予め設置され、ビーコン信号を発信する基準発信部と、サーバー部が特定した基準発信部の位置と既知の位置との誤差を算出する誤差算出部と、誤差算出部により算出された誤差を用いて、サーバー部が特定したビーコン発信部の位置を補正する補正部と、を備える。【選択図】図2


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    Title :

    OPERATION CONTROL SYSTEM, OPERATION CONTROL METHOD AND OPERATION CONTROL PROGRAM OF CEILING CRANE USING POSITIONING DEVICE


    Additional title:

    測位装置を用いた天井クレーンの運転制御システム、運転制御方法、及び運転制御プログラム


    Contributors:
    TSUJI TORU (author)

    Publication date :

    2022-12-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01S RADIO DIRECTION-FINDING , Funkpeilung / B66C Krane , CRANES



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