Systematic method for determining hierarchical structure of accident factors by using gray correlation

A technology of gray correlation degree and construction method, which is applied in the field of systematic analysis of the relationship between multiple levels of accident factors, can solve the problems of incomplete and non-specific analysis of accident factor levels, and achieve the effect of reducing impact and reducing safety accidents

Inactive Publication Date: 2018-08-24
BEIJING UNIV OF POSTS & TELECOMM
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of setting up the accident factor correlation matrix based on experience only in the analysis of safety production accident factors, an

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Systematic method for determining hierarchical structure of accident factors by using gray correlation
  • Systematic method for determining hierarchical structure of accident factors by using gray correlation
  • Systematic method for determining hierarchical structure of accident factors by using gray correlation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] This example realizes that the technology for determining the level of accident factors includes four parts:

[0028] (1) Calculate the correlation degree among the accident factors. Suppose there are n elements in the accident system, the set is S={e 1 ,e 2 ,...,e n}, by corresponding to the items checked in the observation enforcement checklist, the behavior sequence of all elements can be obtained, here is the time series. X is the set of these time series: X={x i |i=0,1,2,...,n}. x i ,y i ∈X, symbol γ(x i ,y i ) means x i and y i The degree of adjacency between them is the so-called gray correlation coefficient. The theorem of gray relation is:

[0029] 1) Comparable. That is, each sequence in X is dimensionless, equal in size, uniform in polarity, and the number is greater than three.

[0030] 2) Norm interval. 00 ,y i )≤1. (i) if x i =x j , γ(x i ,y i )=1. (ii) if x i ,y j ∈φ, γ(x i ,y i ) = 0.

[0031] 3) Integrity. If n≥3 and i≠j, the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to the technical field of safety production accident factor analysis, in particular to a method for systematically analyzing a relationship between the levels of multiple accident factors. The method comprises a step 1 of calculating the gray correlation degree between the overall accident factors; a step 2 of constructing a gray adjacency matrix; a step 3 of establishing a reachability matrix; a step 4 of dividing the reachability matrix into different levels; and a step 5 of drawing a hierarchical structure diagram.

Description

technical field [0001] The invention relates to a technical field specially applicable to factor analysis of production safety accidents, in particular to a method for systematically analyzing the relationship among layers of multiple accident factors. Background technique [0002] Work safety accidents are usually not caused by a single factor, but the result of a series of multiple factors. At the same time, one factor causing an accident may affect another factor, and these factors may interact with each other. In the past safety production processing, only a single or main factor was extracted to affect the whole incident, while ignoring the hierarchical relationship among multiple factors in the accident, which will result in incomplete and objective analysis results and the phenomenon that safety accidents still occur . In the past few decades, in the process of analyzing safety accidents, there have been systematic analysis methods, such as human factor analysis and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06Q10/06G06F17/30
CPCG06Q10/0635G06F16/2465
Inventor 艾新波吴泽锋王松
Owner BEIJING UNIV OF POSTS & TELECOMM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap