To facilitate the selection work of a light-emitting diode during manufacturing a beacon head.SOLUTION: A device according to an aspect of the present invention is a beacon head of an optical beacon for performing optical communication with an on-vehicle device of a vehicle running on the road and includes: a light-emitting unit including a plurality of light-emitting diodes connected in series; and a driving unit that drives the light-emitting diodes. The driving unit includes: a plurality of driving circuits that are different in resistance values of current limit with respect to the light-emitting diodes; and a selector for selecting any one from the driving circuits.SELECTED DRAWING: Figure 6

    【課題】 ビーコンヘッドの製作時における発光ダイオードの選定作業を容易にする。【解決手段】 本発明の一態様に係る装置は、道路を走行する車両の車載機と光通信する光ビーコンのビーコンヘッドであって、直列に接続された複数の発光ダイオードを有する発光ユニットと、複数の前記発光ダイオードを駆動する駆動ユニットと、を備えており、前記駆動ユニットは、複数の前記発光ダイオードに対する電流制限の抵抗値が異なる複数の駆動回路と、複数の前記駆動回路のうちのいずれか1つを選択するためのセレクタと、を有する。【選択図】 図6


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    Title :

    BEACON HEAD OF OPTICAL BEACON


    Additional title:

    光ビーコンのビーコンヘッド


    Contributors:
    ASAO HIROTAKA (author) / HAYAMA KOJI (author)

    Publication date :

    2019-05-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H04B TRANSMISSION , Übertragung / G01S RADIO DIRECTION-FINDING , Funkpeilung / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES



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