Complex network-based high speed train system safety evaluation method

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United States of America Patent

PATENT NO 9630637
APP PUB NO 20170015339A1
SERIAL NO

15123684

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Abstract

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The invention discloses a complex network-based high speed train system safety evaluation method. The method includes steps as follows: (1) constructing a network model of a physical structure of a high speed train system, and constructing a functional attribute degree of a node based on the network model; (2) extracting a functional attribute degree, a failure rate and mean time between failures of a component as an input quantity, conducting an SVM training using LIBSVM software; (3) conducting a weighted kNN-SVM judgment: an unclassifiable sample point is judged so as to obtain a safety level of the high speed train system. For a high speed train system having a complicated physical structure and operation conditions, the method can evaluate the degree of influences on system safety when a state of a component in the system changes. The experimental result shows that the algorithm has high accuracy and good practicality.

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Patent Owner(s)

Patent OwnerAddress
BEIJING JIAOTONG UNIVERSITYBEIJING JIAOTONG UNIVERSITY HAIDIAN DISTRICT BEIJING 100044 100044

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bi, Lifeng Beijing, CN 1 1
Guo, Lei Beijing, CN 264 1743
Jia, Limin Beijing, CN 5 13
Li, Lijie Beijing, CN 9 5
Li, Man Beijing, CN 91 987
Lin, Shuai Beijing, CN 14 44
Qin, Yong Beijing, CN 85 1289
Shi, Hao Beijing, CN 32 85
Wang, Yanhui Beijing, CN 20 45

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