PROBLEM TO BE SOLVED: To secure the real-time property of train control and the operation rate of an overall system even if one communication path is failed while another communication path is being exclusively used for data communication for a man-machine terminal in a control-system network for a multiplexed railway security system.SOLUTION: A railway security system occupies one of multiplexed communication paths exclusively for communication of a man-machine terminal by communication path occupancy instructions from the man-machine terminal. Another terminal stops transmitting data for train control to the occupied communication path. If transmission and reception of the data for train control becomes impossible in the system due to abnormality or the like of a communication path other than the occupied communication path, the railway security system immediately releases the occupied communication path in response to instructions from a device that has detected the abnormality.SELECTED DRAWING: Figure 1

    【課題】多重化された鉄道保安システム用制御系ネットワークにおいて、その1つの通信路をマンマシン端末用のデータ通信専用としつつ、他通信路が故障した場合でも列車制御のリアルタイム性及びシステム全体の稼働率を確保する。【解決手段】マンマシン端末からの通信路占有指示により、多重化された通信路のうち1つをマンマシン端末の通信専用として占有する。他装置は、占有通信路への列車制御用データ送信を停止させる。占有通信路以外の通信路の異常等によりシステム内で列車制御用データの送受信が行えなくなった場合、異常を検知した装置からの指示により、直ちに通信路の占有を解除する。【選択図】 図1


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    Title :

    RAILWAY SECURITY SYSTEM


    Additional title:

    鉄道保安システム


    Contributors:

    Publication date :

    2018-03-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr / B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC / H04Q Wähltechnik , SELECTING



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