关键词: 城市轨道交通, 全自动运行, 信号系统, 通信系统, 综合监控系统, 控制中心, 备用控制中心

Abstract: Fully automatic operation system has the characteristics of strong professionalism, complex technical equipment and strong timeliness in urban rail transit. However, operating control center (OCC) may become paralyzed in times of extreme disasters, resulting in the failure of all professional  systems to complete normal functions, thus affecting the normal operation of urban rail transit. The backup operational control center (BOCC) is defi ned as the essential confi guration of the fully automatic operation system of urban rail transit, and the overall availability and safety of system are greatly improved with the addition of BOCC. This paper analyzes the internal redundant switching mechanism, the typical configuration of the equipment, and the impact of switching between the interfaces of the core professional system and the switching scenarios of the core system of OCC and BOCC of signal systems, data communication system and integrated supervision and control systems. Based on the above description and the comparison of the advantages and disadvantages of switching design, this paper provides reference and guidance for the core professional system switching design of the OCC and BOCC for fully automatic operation in urban rail transit. 

Key words: urban rail transit, fully automatic operation system, signal system, communication system, integrated supervision and control system, OCC, BOCC