To provide a method by which not only information whose content is variable can be transmitted but also a breakdown of a track circuit can be detected.SOLUTION: A track circuit transmitter-receiver in this invention has a track circuit transmitter-receiver 11 and 12 installed on a border of a track circuit and transmits repetitively a frame 50 per period T which frame has a non-signal time Tb and a period-start wave form 71 as the nth track circuit signal 30n. Also, the track circuit transmitter-receiver 11 and 12 makes the transmitter part 11 transmit a time difference Tc (an offset part) after the reception of the receiver 12. When a breakdown of insulation 2a of the rail 2 occurs, the rail insulation breakdown is detected by it that there are plural period start wave forms in a frame 50 or that there is a signal during the non-signal time Tb, because serial track circuit signals K, K+1 exist in mixed mode. Also, when a traveling direction of a train changes, the transmitter-receiver successively transmits the fact of the change by including a traveling direction change indicating wave 75 in the frame 50 of the track circuit signal 30 and in response to detecting the fact of the change, makes the transmitter part 11 and the receiver part 12 change their connecting destinations.SELECTED DRAWING: Figure 1

    【課題】内容可変情報の伝送に加えて軌道回路の絶縁破壊も検知できるようにする。【解決手段】軌道回路の境界に軌道回路送受信機11&12を設置するとともに、第n軌道回路信号30nとして無信号時期Tbや周期開始波形71を持ったフレーム50を周期Tで繰返し送信する。また、軌道回路送受信機11&12では、受信部12の受信から時間差Tc(オフセット分)遅らせて送信部11の送信を行う。レール2の絶縁2aの破壊時には、前後の軌道回路信号k,k+1が混在するため、一フレーム50内に複数の周期開始波形が存在することや、無信号時期Tbに信号が存在することで、レール絶縁破壊を検知する。また、列車運転方向の切替時には、軌道回路信号30のフレーム50の中に運転方向切替指示波75を含めて、それを逐次伝達させるとともに、その検出に応じて送信部11と受信部12の接続先を切り替えさせるようにする。【選択図】 図1


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    Title :

    TRACK CIRCUIT TRANSMITTER-RECEIVER AND TRACK CIRCUIT RECEIVER


    Additional title:

    軌道回路送受信機および軌道回路受信機


    Contributors:

    Publication date :

    2021-05-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC



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