PROBLEM TO BE SOLVED: To provide a radio communication system that allows a receiver to calculate an attention degree with respect to a vehicle having a transmitter used without including a location acquiring device.SOLUTION: A transmitter 100 comprises: a rotation detection unit that detects a rotation of a wheel provided in a bicycle 1; and a transmission unit that transmits a notification signal including a wheel perimeter length corresponding value serving as a value capable of calculating a perimeter length of the wheel when the rotation detection unit detects rotation of the wheel rotates at a fixed angle. A receiver 200 to be used in a vehicle 2 comprises: a reception unit that receives the notification signal to measure reception signal intensity of the notification signal; and a computation unit that acquires the notification signal and the reception signal intensity from the reception unit, and obtains a higher attention degree as a distance between the bicycle 1 and the vehicle 2 is shorter, and as a speed of the bicycle 1 is faster, using a time interval of the notification signal, wheel perimeter length corresponding value, and reception signal intensity of the notification signal.SELECTED DRAWING: Figure 1

    【課題】位置取得器を備えることなく、受信機が、送信機が用いられている車両に対する注意度を算出することが可能な無線通信システムを提供する。【解決手段】送信機100は、自転車1が備える車輪の回転を検出する回転検出部と、回転検出部が、車輪が一定角度回転したことを検出したことを条件とし、車輪の周長を算出可能な値である車輪周長対応値を含む通知信号を送信する送信部とを備え、自動車2で用いられる受信機200は、通知信号を受信し、通知信号の受信信号強度を計測する受信部と、受信部から、通知信号と受信信号強度とを取得し、通知信号の時間間隔と、車輪周長対応値と、通知信号の受信信号強度とを用いて、自転車1と自動車2の距離が短いほど高く、自転車1の速度が高いほど高い注意度を求める演算部とを備える。【選択図】図1


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    Title :

    RADIO COMMUNICATION SYSTEM, AND TRANSMITTER AS WELL AS RECEIVER


    Additional title:

    無線通信システム、および、送信機、受信機


    Contributors:

    Publication date :

    2017-04-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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