|Table of Contents|

Application of BDS in western low-density railway lines(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2016年05期
Page:
132-141
Research Field:
交通信息工程及控制
Publishing date:

Info

Title:
Application of BDS in western low-density railway lines
Author(s):
SHANGGUAN Wei1; 2; 3; 4;  YUAN Chong-yang1;  CAI Bai-gen1; 3;  WANG Jian1; 2; 3;  LIU Jiang1; 2; 3
1. School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, China; 2. State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing 100044,China; 3. Beijing Engineering Research Cente
Keywords:
information engineering;  western low-density railway line;  Beidou satellite navigation system;  integrated positioning;  map matching;  seamless positioning
PACS:
U283.2
DOI:
-
Abstract:
Considering the application requirements of low-density, low-cost and high-reliability of western railway lines, the integrated positioning technology of Beidou satellite navigation system and the inertial navigation system was studied, and the requirement of continuous and seamless positioning of train aimed at western low-density railway lines could be satisfied based on the map matching technology. When train passed through the tunnel and the mountainous area along railway lines, the Beidou satellite navigation system signal would failed due to obstacle. The short-term parameters could be derived and calculated by using the inertial navigation system constructed with accelerometer and gyroscope, train information of attitude, speed and position could be provided, which could solve the positioning problem of train because satellite signal failed in a short time. The map matching technology on the straight line and switch section of railway was studied, and the test was carried out based on the track map database. The Beidou satellite navigation positioning system of train aimed at western low-density railway lines was designed and established. Under the conditions of single-point static positioning in the laboratory and continuous dynamic positioning in the Qinghai-Tibet Railway Lines, the positioning functions of the system were tested. Test result shows that the average positioning error of train is 0.558 m under single-point static positioning condition, the average positioning error of train is 0.258 m under dynamic positioning condition, and the matching accuracy rate of train running trajectory point is 98.6% combining with the map matching technology based on track map database, so the system positioning errors can meet the overall positioning requirements of western low-density railway lines. 15 figs, 25 refs.

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Last Update: 2016-10-20