交通运输系统工程与信息

交通运输系统工程与信息 ›› 2020, Vol. 20 ›› Issue (4): 90-96.

• 智能交通系统与信息技术 • 上一篇    下一篇

基于GNSS移动基线的列车完整性监测

姜 维1a,1b,1c ，刘永强2 ，王 剑* 1a,1b,1c ，张文彪3   

  1. 1. 北京交通大学 a .电子信息工程学院，b. 轨道交通控制与安全国家重点实验室， c. 北京市电磁兼容与卫星导航工程技术研究中心，北京 100044；2. 中电科西北集团共性技术分公司，软件产品部，西安 710068；3.中国铁路青藏集团有限公司 电务部，西宁 810007
  • 收稿日期:2019-10-28 修回日期:2020-03-08 出版日期:2020-08-25 发布日期:2020-08-25
  • 作者简介:姜维(1988-)，女，陕西西安人，副教授.
  • 基金资助:

    中国铁路总公司科技研究开发计划课题/Research and Development Project of China Railway (P2018G008).

Train Integrity Monitoring Method Based on GNSS Moving Baseline Resolution

JIANG Wei1a, 1b, 1c , LIU Yong-qiang2 , WANG Jian1a, 1b, 1c , ZHANG Wen-biao3   

  1. 1a. School of Electronics and Information Engineering, 1b. State Key Laboratory of Rail Traffic Control and Safety, 1c. Beijing Engineering Research Center of EMC and GNSS Technology for Rail Transportation, Beijing Jiaotong University, Beijing 100044, China; 2. Software Products Department, General Technology Branch of CETC Northwest Group, Xi'an 710068, China; 3. Telecommunication Department, China Railway Qinghai-Tibet Group Co.,Ltd., Xining 810007, China
  • Received:2019-10-28 Revised:2020-03-08 Online:2020-08-25 Published:2020-08-25

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摘要：

为满足下一代列控系统(NGTC)采用车载设备实现列车完整性监测，尽量减少地面设备的要求，本文提出基于全球卫星导航系统(GNSS)移动基线的列车完整性监测方法.列车头部和尾部分别安装列首、列尾天线，通过星间及两天线的站间载波相位差分消除传播路径和钟差等误差的影响；实时解算移动基线长度，并将其与参考车长比较，实现列车的完整性监测.为评估所提算法性能，在京沈高铁进行实验.实验结果显示，基于移动基线的最大车长误差在0.5 m以内，相较于单点定位的最大1.3 m误差有明显提升.

关键词: 铁路运输, 移动基线, 列车完整性监测, 双差载波相位, 下一代列控系统

Abstract:

In the next generation of the column control system (NGTC), it is proposed to use the onboard equipment to achieve train integrity monitoring and minimize the requirements of wayside equipment. This paper proposes a train integrity monitoring method based on the global satellite navigation system (GNSS) moving baseline. Two antennas are set up at the head and end of the train. The errors of propagation path and clock is eliminated by using carrier phase difference between satellites and two antennas. The length of moving baseline is calculated in real time and compared with the reference train length to realize the integrity monitoring. To evaluate the performance of the proposed algorithm, a real train test was carried out on the Beijing-Shenyang high speed railway in China. The experimental results show that the proposed train integrity resolution method can provide train integrity solutions with an accuracy of 0.5 meters or better, which is significantly improved compared with the maximum 1.3-meter error of single point positioning.

Key words: railway transportation, moving baseline, train integrity monitoring, double- difference carrier phase, next generation of the column control system (NGTC)

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