software redundancy design for a human-machine interface in railway vehicles

ISCAS OpenIR > 2010软件所会议论文

	software redundancy design for a human-machine interface in railway vehicles
	Zheng G.; Chen J.
	2010
会议名称	12th International Conference on Computer System Design and Operation in the Railways and other Transit Systems, COMPRAIL 2010
会议录名称	WIT Transactions on the Built Environment
页码	221-232
会议日期	August 31,
会议地点	Beijing, China
收录类别	ei
出版地	United Kingdom
ISSN	17433509
ISBN	9781850000000
部门归属	(1) Institute of Software, Chinese Academy of Sciences, China; (2) Graduate University, Chinese Academy of Sciences, China
摘要	The Human-Machine Interface (HMI), which displays the real-time status of electrical systems, interacts with the driver or operator, and collects and reports system fault information, is an important device in railway vehicles. The HMI is a critical component of the control and diagnosis system in the railway vehicle, thus the reliability of the HMI software affects the reliability and safety of the whole railway vehicle. Therefore, it is necessary to design the HMI software with high reliability for railway vehicles so as to ensure the reliability, stability and safety of the railway vehicle operation. This paper analyzes the HMI software function requirements, which include information display, the human machine interaction, and communication. A kind of redundancy mechanism is proposed, which employs two structural redundancy methods: N-version programming and recovery blocks. The HMI software is divided into the information display module, the human-machine interaction module and the communication module, and each module is made up of some components. Based on the analysis of the reliability requirement, complexity, and the implementation cost for each component in the HMI software modules, the corresponding redundancy design mechanism is proposed, which consider the tradeoff between the reliability and the cost. In order to evaluate the reliability of the designed redundancy mechanism, a scenario-based reliability analysis method is used to calculate the reliability of the HMI software, which constructs five scenarios and employs the component dependency graph to compute the reliability. The reliability of the HMI software after redundancy design is compared with that before the redundancy design. © 2010 WIT Press.
关键词	Cost Benefit Analysis Fault Tolerance Fault Tolerant Computer Systems Locomotives Machine Components Machine Design Man Machine Systems Railroads Real Time Systems Redundancy Reliability Analysis Software Design Software Reliability Taxonomies Vehicles
主办者	WIT Transactions on the Built Environment
语种	英语
内容类型	会议论文
URI标识	http://ir.iscas.ac.cn/handle/311060/8908
专题	2010软件所会议论文
推荐引用方式 GB/T 7714	Zheng G.,Chen J.. software redundancy design for a human-machine interface in railway vehicles[C]. United Kingdom,2010:221-232.