为提高传统CBTC系统降级运行的效率,采用基于感知的车车通信列车运行控制系统(perception based train autonomous control system,PB-TACS)结合SIL4级感知“自主感知运行”的降级运行方案有着重要意义。通过研究增加备用通信WLAN设备,...为提高传统CBTC系统降级运行的效率,采用基于感知的车车通信列车运行控制系统(perception based train autonomous control system,PB-TACS)结合SIL4级感知“自主感知运行”的降级运行方案有着重要意义。通过研究增加备用通信WLAN设备,优化轨旁信号设备配置,采用自主感知后备运行级别(autonomous backup level,ABL)移动闭塞运行方案作为车车通信列车控制系统的降级系统,可减少列车区间停车等待时间、提升降级列车恢复效率、减少列车掉线问题。通过对基于感知的车车通信列车运行控制系统降级运行方案进行研究和探讨,为后续全面提升CBTC级别的后备运行方案的完整性和可用性提供有力保障。展开更多
As a development direction of urban rail transit system,the train autonomous circumambulate system(TACS)can operate in a safer,more efficient,and more economical mode.However,most urban rail transit systems transmit s...As a development direction of urban rail transit system,the train autonomous circumambulate system(TACS)can operate in a safer,more efficient,and more economical mode.However,most urban rail transit systems transmit signals through industrial,scientific,and medical(ISM)frequency bands or narrow frequency bands,which cannot meet the requirements of TACS.As a promising solution,the 5th generation(5G)mobile communication provides more services for the future urban rail transit systems,and covers the shortages of exiting communication technologies in terms of capacity and reliability.In this paper,we first briefly review the research status of current train control system and introduce its limitations.Next,we propose a novel network architecture,and present new technologies and requirements of the proposed architecture for TACS.Some potential challenges are then discussed to give insights for further research of TACS.展开更多
文摘为提高传统CBTC系统降级运行的效率,采用基于感知的车车通信列车运行控制系统(perception based train autonomous control system,PB-TACS)结合SIL4级感知“自主感知运行”的降级运行方案有着重要意义。通过研究增加备用通信WLAN设备,优化轨旁信号设备配置,采用自主感知后备运行级别(autonomous backup level,ABL)移动闭塞运行方案作为车车通信列车控制系统的降级系统,可减少列车区间停车等待时间、提升降级列车恢复效率、减少列车掉线问题。通过对基于感知的车车通信列车运行控制系统降级运行方案进行研究和探讨,为后续全面提升CBTC级别的后备运行方案的完整性和可用性提供有力保障。
基金This work was supported in part by the National Natural Science Foundation of China(U2001213,61971191 and 61661021)in part by the Beijing Natural Science Foundation under Grant L182018 and L201011,in part by National Key Research and Development Project(2020YFB1807204)+1 种基金in part by the open project of Shanghai Institute of Microsystem and Information Technology(20190910)in part by the Key project of Natural Science Foundation of Jiangxi Province(20202ACBL202006).
文摘As a development direction of urban rail transit system,the train autonomous circumambulate system(TACS)can operate in a safer,more efficient,and more economical mode.However,most urban rail transit systems transmit signals through industrial,scientific,and medical(ISM)frequency bands or narrow frequency bands,which cannot meet the requirements of TACS.As a promising solution,the 5th generation(5G)mobile communication provides more services for the future urban rail transit systems,and covers the shortages of exiting communication technologies in terms of capacity and reliability.In this paper,we first briefly review the research status of current train control system and introduce its limitations.Next,we propose a novel network architecture,and present new technologies and requirements of the proposed architecture for TACS.Some potential challenges are then discussed to give insights for further research of TACS.
