To provide a road surface state determining device with which it is possible to satisfactorily convey road surface data from a tire-side device to a vehicle body-side system, even when a change in a data communication environment occurs.SOLUTION: A presence angle, i.e., an angle relative to the center of a tire where a tire-side device 1 is positioned, at which the reception strength of data by a receiver 21 becomes highest is set as a transmission angle. Then, road surface data is transmitted from the tire-side device 1 when the presence angle equals the transmission angle. Thus, it is made possible for the road surface data to be transmitted with a transmission timing at which the reception strength in the receiver 21 is maximum, and for the road surface data to be received by the receiver 21 accurately.SELECTED DRAWING: Figure 2

    【課題】データ通信環境の変化が生じたとしても、良好にタイヤ側装置から車体側システムに対して路面データを伝えることができる路面状態判別装置を提供する。【解決手段】タイヤの中心に対してタイヤ側装置1の位置している角度である存在角度が、受信機21でのデータの受信強度が最も高くなるときを送信角度として設定されるようにする。そして、存在角度が送信角度となったときにタイヤ側装置1から路面データが送信されるようにする。これにより、受信機21での受信強度が最大となる送信タイミングで路面データが送信されるようにでき、受信機21で路面データを的確に受信することが可能となる。【選択図】図2


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    Title :

    ROAD SURFACE STATE DETERMINING DEVICE


    Additional title:

    路面状態判別装置


    Contributors:

    Publication date :

    2019-08-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK , Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes / B60C VEHICLE TYRES , Fahrzeugreifen / G08C Übertragungssysteme für Messwerte, Regel-, Steuer- oder ähnliche Signale , TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS




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