PROBLEM TO BE SOLVED: To allow for synchronization with the data reception start, by performing mutual correlation processing of a received signal and a synchronization detection signal, when decoding the received signal by using the frequency spectrum.SOLUTION: A track circuit includes a ground device for transmitting an ATC signal obtained by minimum shift modulation system, and an on-board device mounted on a train, and receiving the ATC signal flowing to the track circuit. The on-board device includes demodulation means performing demodulation by determining the frequency spectrum from the waveform of the received signal. The demodulation means performs mutual correlation (B3) of a received signal (B1) and a synchronization detection signal (B2), detects the peak time of the correlation value (B4), synchronizes with the reception start (B5, B6), and then performs train control based on the ATC signal thus received.
【課題】受信信号について周波数スペクトルを用いた復調処理を行う際に、受信信号と同期検出用信号との相互相関処理を行うことでデータ受信開始との同期を取ることを可能とする。【解決手段】軌道回路に、最小偏移変調方式で得たATC信号を送信する地上装置と、列車に搭載され、前記軌道回路に流れるATC信号を受信する車上装置とを備えて成り、前記車上装置は、受信信号の波形から周波数スペクトルを求めて復調処理を行う復調処理手段を備え、前記復調処理手段は、受信信号(B1)と同期検出用信号(B2)を相互相関し(B3)相関値のピーク時刻を検出し(B4)、受信開始との同期を取る(B5,B6)構成とし、前記受信したATC信号に基づいて列車制御を行うものである。【選択図】図4
TRAIN CONTROLLER
列車制御装置
2016-01-28
Patent
Electronic Resource
Japanese
IPC: | H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC |
TRAIN CONTROL SYSTEM, TRAIN CONTROLLER, AND TRAIN CONTROL METHOD
European Patent Office | 2016
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