To provide a vehicular radiocommunication system and a position determination system capable of improving the accuracy of determination of portable terminal position.SOLUTION: A window glass part 12 such as a side window provided in a vehicle Hv includes a radio wave absorption layer for intercepting a radio wave from a portable terminal 90. Thus, it is difficult for a radio wave from a portable terminal existing outside a cabin to reach the inside of the cabin and for a radio wave from a portable terminal existing in the cabin to reach the outside of the cabin. Thus, when in a state where all the doors and all the windows of the vehicle Hv are closed (that is, in a sealed state), a significant difference is caused in reception condition of a signal from the portable terminal between an in-cabin antenna and an out-of-cabin antenna, so the accuracy of determination of portable terminal position can be enhanced.SELECTED DRAWING: Figure 2

    【課題】携帯端末の位置の判定精度を向上させることが可能な車両用無線通信システム、位置判定システムを提供する。【解決手段】車両Hvが備えるサイドウインドウ等の窓ガラス部12には携帯端末90からの電波を遮断する電波吸収層が設けられている。そのため、車室外に存在する携帯端末からの電波は車室内には到達しにくくなるとともに、車室内に存在する携帯端末からの電波は車室外には到達しにくくなる。故に、車両Hvの全てのドアが閉じられ且つ全ての窓が閉められた状態(つまり密閉状態)である場合、車室内アンテナと車室外アンテナとで、携帯端末からの信号の受信状況には有意な差が生じるため、携帯端末の位置の判定精度を高めることができる。【選択図】図2


    Access

    Download


    Export, share and cite



    Title :

    VEHICULAR RADIOCOMMUNICATION SYSTEM AND POSITION DETERMINATION SYSTEM


    Additional title:

    車両用無線通信システム、位置判定システム


    Contributors:

    Publication date :

    2019-01-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge / E05B LOCKS , Schlösser / H04Q Wähltechnik , SELECTING / H05K PRINTED CIRCUITS , Gedruckte Schaltungen



    RADIOCOMMUNICATION ESTABLISHMENT METHOD

    NAKAJO NATSUKO | European Patent Office | 2020

    Free access

    Radiocommunication program in France

    Hernandez, D. / European Space Agency / The National Commission of Space Activities(CONAE) Argentina | British Library Conference Proceedings | 1994


    Radiocommunication program in France

    Hernandez, D. | British Library Online Contents | 1994



    Progress in marine radiocommunication

    Mcdonald, G.J. / Burnham, C.S. | Tema Archive | 1970