Citation

Cui T, Li S. China Saf. Sci. J. 2021; 31(6): 1-6.

Copyright

(Copyright © 2021, China Occupational Safety and Health Association, Publisher Gai Xue bao)

DOI

10.16265/j.cnki.issn1003-3033.2021.06.001

PMID

unavailable

Abstract

In order to study system fault pattern with certainty and uncertainty, a pattern recognition method was proposed. Firstly, fault sample patterns were identified by using existing fault standard pattern, and connection number of set pair analysis was used to represent certainty and uncertainty of identification. Secondly, component coefficients of connection number were calculated by utilizing characteristic function of space fault tree, and fault sample pattern was recognized by connection degree and recognition degree. Finally, through analysis on an electrical system example, its fault mode under influence of multiple factors was effectively identified. The results show that the proposed method, based on characteristic function and connection number, can express certainty and uncertainty of pattern recognition. It uses characteristic function to determine component coefficient of connection number and uses connection degree and recognition degree for pattern recognition. © 2021 China Safety Science Journal. All rights reserved.

Language: zh