华东交通大学学报
華東交通大學學報
화동교통대학학보
JOURNAL OF EAST CHINA JIAOTONG UNIVERSITY
2014年
1期
39-43
,共5页
列车定位%GNSS导航%组合定位%安全完整性
列車定位%GNSS導航%組閤定位%安全完整性
열차정위%GNSS도항%조합정위%안전완정성
train location%GNSS(Global Navigation Satellite System)%integrated positioning%safety integrity
基于GNSS的列车定位能够有效降低运营和维护成本，改善铁路安全。从GNSS应用于高速列车定位面临的问题入手，在分析列车定位有效性与安全完整性基础上，探讨构建以GNSS为主的多传感器组合定位模型，采用自适应的联合Kalman滤波算法，解决GNSS定位有效性问题；根据铁路安全规范，运用故障模型分析手段，探索GNSS安全标准与铁路RAMS规范内在关联机理，解决GNSS定位安全完整性问题，为GNSS安全应用于我国高速铁路系统奠定理论基础。
基于GNSS的列車定位能夠有效降低運營和維護成本，改善鐵路安全。從GNSS應用于高速列車定位麵臨的問題入手，在分析列車定位有效性與安全完整性基礎上，探討構建以GNSS為主的多傳感器組閤定位模型，採用自適應的聯閤Kalman濾波算法，解決GNSS定位有效性問題；根據鐵路安全規範，運用故障模型分析手段，探索GNSS安全標準與鐵路RAMS規範內在關聯機理，解決GNSS定位安全完整性問題，為GNSS安全應用于我國高速鐵路繫統奠定理論基礎。
기우GNSS적열차정위능구유효강저운영화유호성본，개선철로안전。종GNSS응용우고속열차정위면림적문제입수，재분석열차정위유효성여안전완정성기출상，탐토구건이GNSS위주적다전감기조합정위모형，채용자괄응적연합Kalman려파산법，해결GNSS정위유효성문제；근거철로안전규범，운용고장모형분석수단，탐색GNSS안전표준여철로RAMS규범내재관련궤리，해결GNSS정위안전완정성문제，위GNSS안전응용우아국고속철로계통전정이론기출。
GNSS-based train positioning can effectively reduce operation and maintenance cost,improve the safety of railway. Starting from the problems of applying the GNSS to high-speed train location,based on the analysis of the existing train positioning availability and safety integrity,this paper discusses the construction of GNSS-based multi-sensors integrated positioning model,and the GNSS positioning availability through adap-tive Federal Kalman filtering algorithm. According to railway safety standards,by using the failure modes analy-sis,it explores the internal conjunctive mechanism between GNSS safety standards and railway RAMS(reliabil-ity,availability,maintainability and safety),solving the GNSS positioning safety integrity issue,which would lay theoretical foundation for safety application of GNSS in China's high speed railway system.
