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A product reliability evaluation method and device

An evaluation method and reliability technology, which is applied in the field of product reliability evaluation methods and devices, can solve the problems of long test period and high cost, and achieve the effect of short test period and low cost

Active Publication Date: 2019-12-06
DATANG MOBILE COMM EQUIP CO LTD
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  • Claims
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Problems solved by technology

[0006] The embodiment of the present invention provides a product reliability evaluation method and device to solve the problems of long test period and high cost in the prior art

Method used

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  • A product reliability evaluation method and device
  • A product reliability evaluation method and device
  • A product reliability evaluation method and device

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Embodiment Construction

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0046] In order to solve the problem that the test cycle of the product reliability evaluation method in the prior art is longer and the cost is higher, in the embodiment of the present invention, the test data of the product under each environmental stress test is obtained, and each environmental stress test is calculated. The environmental reliability factor, and based on the test data and environmental reliability factor, calculate the reliab...

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Abstract

The invention relates to the field of product reliability, and particularly relates to a product reliability evaluation method and an evaluation device. The method comprises steps: test data of each test sample belonging to the same product under each preset environmental stress test are obtained respectively; based on acquired environmental stress parameters under each environmental stress test, a preset algorithm is adopted to calculate an environmental reliability factor under each environmental stress test respectively; based on the environmental reliability factor under each environmental stress test and the test data of each test sample under each environmental stress test, a reliability index of the product is calculated; and based on the reliability index of the product, reliability evaluation on the product is carried out. Thus, in a condition in which an effective reliability test can not be carried out or reliability data of the product do not exist, a method of using the test data under the environmental stress test to transversely compare the product reliability level is given, the test cycle is short, the cost is low, and a basis is provided for product research and development and management decision.

Description

technical field [0001] The invention relates to the field of product reliability, in particular to a product reliability evaluation method and device. Background technique [0002] With the improvement of science and technology, the reliability requirements of products are getting higher and higher. In the process of product development, reliability evaluation is an important part of reliability work. [0003] Under the existing technology, to evaluate the reliability of the product, refer to figure 1 As shown, reliability test data is generally used for evaluation, such as reliability growth test, reliability verification test, etc. Specifically: by collecting the reliability data of the system or unit products, and according to the function or reliability structure of the system, using the method of probability statistics, the quantitative estimation of various reliability indicators of the system is given. The results of these quantitative evaluations will be used as a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00G01M7/02G01M99/00
CPCG01M7/02G01M99/005G01R31/003
Inventor 王文雨杨柳霍玉杰邹田骥
Owner DATANG MOBILE COMM EQUIP CO LTD
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