To provide a disconnection detector for detecting disconnection of an LED of a special signal light emitter without newly installing a cable.SOLUTION: A light emitter includes: a pair of power source output terminals connected with a cable for supplying a power source to the light emitter; a first path for having current flow through when connected to the power source output terminals and having the light emitter emit light and a second path for the current to flow through when detecting disconnection; current measuring means capable of measuring the current flowing through the second path; control means with a function to implement measuring by the current measuring means by having current flow through the second path at a prescribed timing and a function for determining disconnection or deterioration on the basis of a current value detected by the current measuring means; and output means for outputting the determined result to outside. Switching means are provided in the middle of the first path and the second path capable of switching between conduction and non-conduction state, and the conduction state is composed with a condition that there is no light emitter command signal from outside in the switching means in the middle of the second path.SELECTED DRAWING: Figure 3

    【課題】新たにケーブルを設置することなく特殊信号発光機のLEDの断線を検出することができる断線検出装置を実現する。【解決手段】発光機へ電源を供給するケーブルが接続される一対の電源出力端子と、これらの電源出力端子に接続され発光機を発光させる際に電流を流す第1の経路および断線検出時に電流を流す第2の経路と、第2の経路に流れる電流を測定可能な電流測定手段と、所定のタイミングで第2の経路に電流を流して電流測定手段による測定を実施させる機能および電流測定手段により検出された電流値に基づいて断線もしくは劣化を判定する機能を有する制御手段と、判定結果を外部へ出力する出力手段とを備え、第1の経路および第2の経路の途中には導通または非導通状態に切替え可能なスイッチ手段がそれぞれ設けられ、第2の経路の途中のスイッチ手段は外部からの発光機作動指令信号がないことを条件に導通状態にされるように構成した。【選択図】図3


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    Titel :

    DISCONNECTION DETECTOR FOR LIGHT EMITTER


    Weitere Titelangaben:

    発光機の断線検出装置


    Beteiligte:
    TSURUMARU NAOYUKI (Autor:in) / WADA TOSHIYUKI (Autor:in) / MIZUNO TAKESHI (Autor:in)

    Erscheinungsdatum :

    2019-07-11


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES



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