무선통신기반 열차제어시스템을 위한 개선된 ATP 핸드오버

초록

All trains in a communication-based train control(CBTC) system report their position to a wayside ATP in the jurisdictional area and travel when the wayside ATP provides movement authority, which is a limit of the distance to travel. For a train to travel between two or more jurisdictions, handover is required. Handover is a complex process of exchanging control information between the train and ground ATP. This study analyzes the problems of the handover algorithm of the Korean Radio-based Train Control System (KRTCS) and proposes a handover algorithm that supports various operation schedules by handover revocation or handover authority transfer according to the traveling direction and position of a train. In addition, a handover message structure for the Korean Railway Standards(KRS SG 0069) of KRTCS is proposed to support the new handover algorithm. In order to analyze the performance of the proposed handover algorithm, a zone for a train model and route was defined. Through simulation, the handover suggested in the existing standard and various operation schedules were compared and analyzed. The simulation results confirmed that the proposed handover algorithm enables stable handover even in situations such as a direction change at all handover sections.

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