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An attempt of using leaky cable at 400MHz in CBTC system
2014 IEEE International Conference on Communiction Problem-solving, 2014This paper introduces a novel train-ground wireless system at 400 MHz based on leaky cable transmission of communication based train control (CBTC) in urban rail transit. Adopting 400MHz band is to avoid the interference of civil equipment at 2.4GHz. Benefited from low frequency band, leaky cable can provide longer transmission distance without relay ...
null Nan Zhang +3 more
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A Study on the System-level Test and Evaluation for the CBTC System
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, 2008The communication-based train control (CBTC) technology is a kind of railway signaling technologies and is to control the train operation through communication. A project adopting the CBTC technology is in progress and its object is to develop interoperable and interchangeable subsystems. Thus the purpose of this paper is on how to develop the required
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Attacks and Counter Defense Mechanisms for CBTC Systems: System Modeling and Availability Analysis
2019 IEEE Intelligent Transportation Systems Conference (ITSC), 2019Communication-based train control (CBTC) are automated train control systems using information communication technologies to ensure the safe operation of rail vehicles. With the development of information technology, massive commercial software, hardware products and standard communication equipment are applied to urban rail transit systems, which ...
Wenhao Wu, Bing Bu, Wei Zhang 0128
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A Seamless Handoff Scheme for Train-Ground Communication Systems in CBTC
2010 IEEE 72nd Vehicular Technology Conference - Fall, 2010Communication-based train control (CBTC) system is an automated control system for railways that ensures the safe operation of rail vehicles using wireless data communications. The train-ground communication system is one of the key subsystem of CBTC. CBTC systems have stringent requirements for wireless communication availability and latency.
Li Zhu 0002, F. Richard Yu, Bing Ning
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A Functional Safety Analysis Approach for Analyzing CBTC System
2009 International Conference on Measuring Technology and Mechatronics Automation, 2009With the fast development of the communication technology, the reliability and the availability of the wireless-communication have been greatly improved, and the Communication Based Train Control System (CBTC) has been formed. The Zone Controller is a subsystem of the CBTC system, which plays the role of computing and presenting Movement Authority (MA)
Xianqiong Zhao, Tao Tang, Fei Yan
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Research on Data Storage Unit for Interoperation CBTC System
2019 IEEE 2nd International Conference on Electronics and Communication Engineering (ICECE), 2019To overcame the shortcoming that the CBTC interoperable system cannot deal with temporary speed limit informaiton across ZC control zone, a new interoperable DSU structure incorporated into the existing CBTC is studied and designed. Interface between subsystems and Data Storage Unit (DSU) systems changes are illustrated and analyzed, and also the ...
Qingyang Jiang +3 more
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A Cognitive Control Method for Cost-Efficient CBTC Systems With Smart Grids
IEEE Transactions on Intelligent Transportation Systems, 2017Communication-based train control (CBTC) systems use wireless local area networks for information transmission between trains and wayside equipment. Since inevitable packet delay and drop are introduced in train–wayside communications, information uncertainties in trains' states will lead to unplanned traction/braking demands, as well as waste in ...
Wenzhe Sun +3 more
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Safety Analysis of a CBTC System: A Rigorous Approach with Event-B
2017This paper describes a safety analysis effort on RATP’s communication-based train control (CBTC) system Octys. This CBTC is designed for multi-sourcing and brownfield deployment on an existing interlocking infrastructure. Octys is already in operation on several metro lines in Paris, and RATP plans its deployment on several other lines in the ...
Mathieu Comptier +5 more
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Research on Urban Railway Knowledge-Based CBTC System
2011 Third Pacific-Asia Conference on Circuits, Communications and System (PACCS), 2011Automatic train control system (ATC) is a safety related system in urban rail transportation. As the latest ATC technology, the communication based train control (CBTC) system is a large-scale knowledge based system. The architecture, the trackside control level and the onboard control level of CBTC are discussed.
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A novel handover scheme in wireless LAN in CBTC system
Proceedings of 2011 IEEE International Conference on Service Operations, Logistics and Informatics, 2011Wireless LAN technologies are adopted in most train-wayside communication systems in CBTC. The handover interruption time between WLAN APs is one of the key parameters which affect the train-wayside communication performance. A location based handover scheme for WLAN in tunnels is proposed in this paper for the CBTC system.
Hailin Jiang, Hongli Zhao, Bobo Zhao
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