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| Content Provider | IET Digital Library |
|---|---|
| Author | U, Debiao L G, Dezhang T A N L, Dirk S P I E G E |
| Abstract | GNSS (Global navigation satellite system) has shown its ability on the non-safety relevant applications in various applications. In railway domain, safety is the utmost concern, GNSS-based train localization unit is the carrier of safe localization. EN 50126 standard specifies the electric and electronic system performance requirements as Reliability, availability, maintainability and safety (RAMS). Safety performance characteristic is based on the reliability and availability analysis results. The formal method considering the risk identification and analysis is compulsory for the safety assessment. This paper provides the method for hazard analysis of the GNSS-based train localization function and further the hazard rate estimation of each hazard. The model-based approach using GNSS localization unit working principle is proposed to study railway localization behavior features. The hazard for the localization unit is formally stated, real collected data on circular test track in Beijing is studied using the proposed method. The result shows that the safety requirement of the performance can be transformed into safety integrity properly, the risks of GNSS in train station environment conditions are presented. |
| Starting Page | 49 |
| Ending Page | 56 |
| Page Count | 8 |
| ISSN | 10224653 |
| Volume Number | 29 |
| e-ISSN | 20755597 |
| Issue Number | Issue 1, Jan (2020) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/cje/29/1 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/cje.2019.09.006 |
| Journal | Chinese Journal of Electronics |
| Publisher Date | 2020-01-01 |
| Access Restriction | Open |
| Rights Holder | © Chinese Institute of Electronics |
| Subject Keyword | Availability Analysis Result Electric System Performance Requirements Electronic System Performance Requirements Formal Method Global Navigation Satellite System GNSS Localization Unit GNSS-based Train Localization Function GNSS-based Train Localization Unit Hazard Analysis Hazard Rate Estimation Hazards Health And Safety Aspects Maintainability Model-based Approach Nonsafety Relevant Application Radio Navigation And Direction Finding Railway Domain Railway Localization Behavior Feature Railway Safety Railways Reliability Risk Identification Safe Localization Safety Safety Assessment Safety Integrity Safety Performance Characteristic Safety Requirement Satellite Navigation Train Station Environment Condition Utmost Concern |
| Content Type | Text |
| Resource Type | Article |
| Subject | Applied Mathematics Electrical and Electronic Engineering |
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