Relay individual working life predicting and screening method based on early life performance

A technology of working life and screening method, applied in instruments, electrical digital data processing, special data processing applications, etc., can solve the problems of shortening the effective service time of relay products, short working life, long working life and so on

Active Publication Date: 2015-03-25
HEBEI UNIV OF TECH
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently a lack of a method that can quickly judge whether the working life of an individual relay product can reach a given value without shortening the effective service time of the relay product too much.
[0004] Recent stud

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
  • Relay individual working life predicting and screening method based on early life performance
  • Relay individual working life predicting and screening method based on early life performance
  • Relay individual working life predicting and screening method based on early life performance

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0065] Example

[0066] Taking the test data of 8 samples of a certain type of normally open contact electromagnetic relay in the complete life test as an example, the method in the present invention is described in detail, including the following steps:

[0067] Step 1: Select a set of performance parameters (attributes) of the sample as comprehensively as possible;

[0068] For this type of relay, select five performance parameters: bounce time, dynamic fluctuation time, dynamic peak pressure drop, static contact pressure drop, and working life, and record working life, ambient temperature, bounce time, dynamic fluctuation time, dynamic peak pressure drop, The static contact pressure drop is D, C 1 , C 2 , C 3 , C 4 , C 5 ;

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 a relay individual working life predicting and screening method based on early life performance. The relay individual working life predicting and screening method based on early life performance is characterized by comprising the following steps that under an environment temperature C1, the performance parameters C ={C2,C3, ...,Cn} and the working life D of a relay sample at the early life are acquired according to the service life test of the relay sample; a relay individual working service decision table is established based on a rough set theory and an equal probability criterion by using the C as condition attributes and using the D as decision attributes; a set of association rules with respect to the early life performance and the service life of relay individuals are extracted by the aid of attribute reduction; afterwards, for the individuals of the same specifications, the service life of the individuals can be predicted by only measuring the performance parameters of the individuals at the early life, and therefore relays can be screened. According to the method, when the working life of the relay individuals are predicted and products are screened, only the early life performance of the relay individuals is needed, no more information is needed, the time and cost for acquiring information are greatly saved, the calculation is small, and the effective service life of the relays can also not excessively shortened.

Description

technical field [0001] The invention belongs to the technical field of relays, in particular to a method for predicting and screening individual working life of relays based on early-life performance. Background technique [0002] Nowadays, relay products are widely used in various industries. Different industries, systems, and equipment have different requirements for their working life, so it is often necessary to use the working life as an indicator to screen relay products. In particular, when relays are used in some systems that require extremely high reliability and are difficult to repair once they are put into use, such as space stations, submarine engineering systems, artificial satellites, etc., each relay product is required to have a The longer working life of the system. In order to select individual products that meet this requirement, long-term and harsh screening tests have to be carried out, which not only requires high costs, but also reduces the remainin...

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): G06F19/00
Inventor 李玲玲鲍丽光李志刚张士暖刘伯颖
Owner HEBEI UNIV OF TECH
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