To provide a new technique capable of detecting abnormality relating to false dropping of an AC track circuit caused by climate changes such as rainfall.SOLUTION: A track circuit monitoring device 100 includes a measurement terminal 200 installed at each section boundary of a track circuit and a processing device 300. When a transmission current phase difference, which is a phase difference of a transmission current to a local voltage of a track relay 11, satisfies a condition of gradually decrease tendency in that the transmission current phase difference has a gradual decrease tendency with the lapse of time and leakage conductance satisfies a threshold condition showing that it is increased to a value, which should be notified as abnormality in each track circuit, the processing device 300 determines that there is abnormality relating to false dropping of the track circuit due to the climate change.SELECTED DRAWING: Figure 1

    【課題】降雨等の天候変化によって生じる交流軌道回路の不正落下に係る異常を検知できる新たな技術の提供。【解決手段】軌道回路監視装置100は、軌道回路の区間境界毎に設置されて計測端末200と、処理装置300とを備える。処理装置300は、軌道回路毎に、軌道リレー11の局部電圧に対する送信電流の位相差である送信電流位相差が、時間経過とともに徐々に減少する漸減傾向にあることを示す漸減傾向条件を満たし、且つ、漏れコンダクタンスが異常として報知すべき値まで増加したことを示す閾値条件を満たす場合に、天候変化による当該軌道回路の不正落下に係る異常有りと判定する。【選択図】図1


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    Title :

    TRACK CIRCUIT MONITORING DEVICE


    Additional title:

    軌道回路監視装置


    Contributors:

    Publication date :

    2020-06-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC



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