Method for predicting and evaluating service life of computer interlocking system

A technology of computer interlocking and service life, which is applied in general control systems, control/regulation systems, test/monitoring control systems, etc., can solve problems such as large deviations in life prediction results, concerns, and lack of control system structures, etc., to improve Operational Safety and Equipment ROI, Effects of Improved Accuracy

Inactive Publication Date: 2018-06-01
CHINA RAILWAYS CORPORATION +1
View PDF17 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method based on probability and statistics, due to some uncertain factors in the system, leads to a large deviation in the life prediction results; at this stage, the life prediction method based on information technology lacks attention to the structure of the control system, and is more common in technical systems in the aerospace field
The railway signal computer interlocking system has a unique hardware redundancy structure, which is quite different from the conventional industrial control system

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
  • Method for predicting and evaluating service life of computer interlocking system
  • Method for predicting and evaluating service life of computer interlocking system
  • Method for predicting and evaluating service life of computer interlocking system

Examples

Experimental program
Comparison scheme
Effect test

specific example

[0056] Based on the fault data of a two-by-two computer interlocking system obtained from a railway bureau in my country, the life prediction and evaluation of it are carried out. The failure data of the system collected from 2012 to 2016 are as follows:

[0057]

[0058]

[0059] The data in the table is classified according to the data constraint format of the present invention, and the input vector [x1, x2, ... x23] of the life prediction and evaluation neural network is obtained, and the calculation is performed, and the life of the interlocking system components obtained by the network calculation is as follows :

[0060] Failure Data Predictors

[0061] use the formula Find the mean time between failure index of the computer interlocking system,

[0062]

[0063] According to the average remaining life of the system, that is, the mean time between failures (MTBF) of the system, when the value does not meet the MTBF stipulated in my country's ...

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 belongs to the technical field of rail traffic control operation and maintenance, and provides a method for predicting and evaluating the service life of a railway signal computer interlocking system based on a neural network. The method comprises the following steps: first, designing life prediction neural network structure models for double-machine hot standby and double 2-vote-2 computer interlocking systems respectively; then, improving the accuracy of prediction by controlling the neuron transfer function and output function of a life prediction neural network and optimizingthe center neuron width; and finally, constraining the format of the input vector of the life prediction neural network based on operation equipment fault data, and predicting and evaluating the service life of the interlocking systems. The results of example verification show that compared with other methods, the method of the invention is more in line with the actual operation of the interlocking systems, has high prediction accuracy and can effectively support the operation safety of the systems and improve the rate of return on investment of interlocking equipment.

Description

technical field [0001] The invention belongs to the technical field of rail traffic control operation and maintenance, and relates to life prediction and evaluation of control equipment, in particular to a service life prediction and evaluation of a railway signal computer interlocking system. Background technique [0002] The computer interlocking system is the core technical equipment of railway signals, which plays a key role in the production of railway transportation. column) is safe to operate. At present, the computer interlocking used in my country's railways mainly includes two systems of hot backup and two-by-two. At this stage, the life cycle management of computer interlocking systems in my country is not standardized enough and lacks scientific and reasonable basis. The "Railway Signal Maintenance Rules" issued by the former Ministry of Railways in 2009 stipulates that the overhaul cycle of general signal equipment is 15 years. In actual operation, the overhau...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02G06N3/04
CPCG05B23/0243G05B2219/24065G06N3/04
Inventor 周荣陈建译王海峰王韵琛
Owner CHINA RAILWAYS CORPORATION
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