To control switching in a situation where a reception environment of a satellite positioning device easily becomes unstable and ensure more stable position accuracy.SOLUTION: A movable body positioning system according to an embodiment which is a movable body positioning system that is mounted on a movable body and measures a position of the movable body includes: a first satellite positioning unit which receives a radio wave for positioning from an artificial satellite and measures a first position of a movable body; a second satellite positioning unit which receives a radio wave for positioning from the artificial satellite and measures a second position of the movable body; an autonomous positioning unit that performs autonomous positioning of a third position of the movable body; and a control unit which has an independent positioning mode which measures a position of the movable body by either the first satellite positioning unit or the second satellite positioning unit, a relative positioning mode which measures the position of the movable body by the first satellite positioning unit and the second satellite positioning unit, and the autonomous positioning mode which measures the position of the movable body by the autonomous positioning unit, and which exclusively selects one of the positioning modes. The control unit prohibits direct transitions between the autonomous positioning mode and the relative positioning mode.SELECTED DRAWING: Figure 1

    【課題】衛星測位装置の受信環境が不安定となりやすい場面における切替を制御し、より安定した位置精度を確保する。【解決手段】実施形態の移動体測位システムは、移動体に搭載され、移動体の位置を測位する移動体測位システムであって、人工衛星からの測位用電波を受信し、移動体の第1位置を測位する第1衛星測位部と、人工衛星からの測位用電波を受信し、移動体の第2位置を測位する第2衛星測位部と、移動体の第3位置の自立測位を行う自立測位部と、第1衛星測位部あるいは第2衛星測位部の何れか一方により、移動体の位置を測位する単独測位モードと、第1衛星測位部及び第2衛星測位部により、移動体の位置を測位する相対測位モードと、自立測位部により移動体の位置を測位する自立測位モードと、を有し、何れかの測位モードを排他的に選択する制御部と、を備え、制御部は、自立測位モードと相対測位モードとの間では直接の遷移を禁止する。【選択図】図1


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    Title :

    MOVABLE BODY POSITIONING SYSTEM AND MOVABLE BODY POSITIONING SWITCHING METHOD


    Additional title:

    移動体測位システム及び移動体測位切替方法


    Contributors:

    Publication date :

    2024-06-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01S RADIO DIRECTION-FINDING , Funkpeilung / B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC / G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS



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