PROBLEM TO BE SOLVED: To provide a railway security system that performs fail-safe and reliable communication by using a general-purpose protocol.SOLUTION: The railway security system includes: a transmission side device including a transmission side controller; and one or more reception side devices including a reception side controller that, through a network, receives information transmitted from the transmission side device and manages the information. The transmission side controller transmits, as information, a control instruction telegraphic message, which is a telegraphic message including an instruction serial number and is based on a general-purpose protocol, at a constant frequency and, every time a control instruction event for performing a control instruction is generated, updates the instruction serial number before adding a content of the control instruction to the control instruction telegraphic message. The reception side controller, when receiving a control instruction telegraphic message from the transmission side controller, compares an instruction serial number added to the telegraphic message with an instruction serial number managed as a comparison target and, on the condition that the added instruction serial number has been updated, executes control action to a control target according to a control instruction added to the control instruction telegraphic message.SELECTED DRAWING: Figure 1

    【課題】汎用プロトコルを用いてフェールセーフでかつ信頼性の高い通信を行う鉄道保案システムを提供する。【解決手段】送信側コントローラを含む送信側装置と、送信側装置から送信される情報をネットワークを介して受信して管理する受信側コントローラを含む1以上の受信側装置と、を有する。送信側コントローラは、情報として、指示通番を含む電文であって汎用プロトコルによる制御指示用電文を定周期で送信すると共に、制御指示を行うための制御指示イベントが発生する毎に指示通番を更新して、制御指示の内容を前記制御指示用電文に付加する。受信側コントローラは、送信側コントローラから制御指示用電文を受信した場合、電文に付加された指示通番と比較対象として管理された指示通番とを比較し、付加された指示通番が更新されていることを条件に、制御指示用電文に付加された制御指示に従って制御対象に対する制御動作を実行する。【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 :

    2017-06-01


    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



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