CN-121996869-A - Test time conversion method and device for reliability evaluation and electronic equipment

CN121996869ACN 121996869 ACN121996869 ACN 121996869ACN-121996869-A

Abstract

The application provides a test time conversion method and device for reliability evaluation, and electronic equipment, wherein the method comprises the steps of determining a plurality of first test information of a product under the condition of actual use working condition standard according to design information of the product; the method comprises the steps of obtaining a plurality of pieces of second test information of a product in a test scene, determining test time conversion coefficients of the second test information and corresponding first test information of the second test information according to the second test information in the plurality of pieces of test information, obtaining a plurality of test time conversion coefficients, carrying out weighted fusion on the plurality of test time conversion coefficients to obtain a final test time conversion coefficient, and determining accumulated test time of the product under the standard condition of actual use working conditions based on the final test time conversion coefficient, so that the utilization rate of test data in the process of converting the test time based on the test data is improved.

Inventors

DAI YING
TONG YU
Lei Yueshu
XIA SHANSHAN
WANG DONGYU
WU XIAOYANG
ZHANG QIANNAN

Assignees

北京遥感设备研究所

Dates

Publication Date: 20260508
Application Date: 20251230

Claims (10)

1. A test time conversion method for reliability evaluation, comprising: Determining a plurality of first test information of a product under the standard condition of actual use working conditions according to design information of the product, wherein the first test information comprises first failure rate data, a first environment coefficient of a core component of the product, a first scoring result of related personnel on the product and first environment information of the core component of the product, and the first environment information comprises first temperature information, first humidity information and a first vibration stress level; Acquiring a plurality of second test information of the product in a test scene, wherein each second test information relates to the test information of each test in a plurality of tests; determining test time conversion coefficients of the second test information and the corresponding first test information aiming at each second test information in the plurality of second test information to obtain a plurality of test time conversion coefficients; weighting and fusing the test time conversion coefficients to obtain a final test time conversion coefficient; and determining the accumulated test time of the product under the standard condition of the actual use working condition based on the final test time conversion coefficient.
2. The method of claim 1, wherein scoring the product by an associated person comprises: Using a positive real number to represent the scored; the number or symbol which can not be used for four arithmetic operations can not be used for scoring; The larger the number of points, the more severe the product working environment or the more frequently problems occur, including faults, or failures; the score value range is within the [0.01,100] range.
3. The method of claim 1, wherein the second test information includes second failure rate data, a second environmental factor of a core component of the product, a second scoring result of related personnel for the product, and second environmental information of the core component of the product, the second environmental information including second temperature information, second humidity information, and a second vibration stress level, wherein the determining, for each of the plurality of second test information, a test time conversion factor of the second test information and its corresponding first test information, to obtain a plurality of test time conversion factors includes: Determining a test time conversion coefficient of the second failure rate data and the first failure rate data; determining a test time conversion coefficient of the second environmental information and the first environmental information; Determining a test time conversion coefficient of the second environmental coefficient and the first environmental coefficient; And determining a test time conversion coefficient of the second scoring result and the first scoring result.
4. The method of claim 1, wherein said weighting and fusing the plurality of trial time reduction coefficients to obtain a final trial time reduction coefficient comprises: Acquiring an initial weight vector, wherein the initial weight vector comprises a plurality of initial weights, and the sum of the initial weights is 1; Taking the weighted summation result of the plurality of test time conversion coefficients based on the initial weight vector as an initial test time conversion coefficient; Adjusting the weight in the initial weight vector according to the principle of minimizing the difference between the initial test time conversion coefficient and the plurality of test time conversion coefficients, so as to obtain an initial test time conversion coefficient when the final weight vector and the difference are minimum; And taking the initial test time conversion coefficient when the difference is minimum as the final test time conversion coefficient.
5. The method of claim 1, wherein the final trial time reduction factor comprises a trial time reduction factor corresponding to each trial, wherein determining the cumulative trial time of the product under actual use condition standard conditions based on the final trial time reduction factor comprises: for each test, determining the test time of the product under the standard condition of the actual use working condition based on the test time conversion coefficient and the test time of the test, and obtaining a plurality of test times corresponding to the plurality of tests; and summing the test times to obtain the accumulated test time of the product under the standard condition of the actual use working condition.
6. The method of claim 1, wherein the product is any one or more of an electronic product, a display device, an optoelectronic product, a mechanical product, an electromechanical product.
7. The method of claim 6, wherein the step of providing the first layer comprises, When the product is an electronic product, the core component of the product is at least one or more of CPU, DSP, FPGA; when the product is a display device, the core component of the product is a display screen; When the product is a photoelectric product, the core component of the product is a photoelectric conversion device; When the product is a mechanical product, the core component of the product is a main bearing structure and/or a transmission structure; when the product is an electromechanical product, the core component of the product is an electromechanical conversion component.
8. A test time conversion apparatus for reliability evaluation, comprising: The device comprises a determining unit, a judging unit and a judging unit, wherein the determining unit is used for determining a plurality of first test information of a product under the actual use condition standard condition according to the design information of the product, the first test information comprises first failure rate data, a first environment coefficient of a core component of the product, a first scoring result of related personnel on the product and first environment information of the core component of the product, and the first environment information comprises first temperature information, first humidity information and a first vibration stress level; the acquisition unit is used for acquiring a plurality of second test information of the product in a test scene, wherein each second test information relates to the test information of each test in a plurality of tests; The determining unit is further configured to determine, for each second test information in the plurality of second test information, a test time conversion coefficient of the second test information and the first test information corresponding to the second test information, so as to obtain a plurality of test time conversion coefficients; the fusion unit is used for carrying out weighted fusion on the plurality of test time conversion coefficients to obtain a final test time conversion coefficient; The determining unit is further used for determining the accumulated test time of the product under the standard condition of the actual use working condition based on the final test time conversion coefficient.
9. An electronic device comprising a memory, a processor and a computer program stored in the memory and running on the processor, characterized in that the processor implements the steps of the method according to any of claims 1 to 7 when the computer program is executed.
10. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the steps of the method according to any one of claims 1 to 7.

Description

Test time conversion method and device for reliability evaluation and electronic equipment Technical Field The application belongs to the technical field of data analysis, and particularly relates to a test time conversion method and device for reliability evaluation and electronic equipment. Background In the modern industrial field, aiming at some high-end manufacturing industries, product reliability is a core index for measuring quality and competitiveness of the product. To verify the reliability level of a product over its expected lifetime, various environmental stress and lifetime tests are typically required. However, with the technological progress, the products with high reliability and long service life are increasingly popular, and a remarkable contradiction is revealed, if the reliability of the products is verified for years or even decades under the condition of normal use stress by adopting a traditional test method, the required test period is extremely long, and the test cost is also high enough to be bearable. The high economic cost and time investment severely restrict the product research and development iteration efficiency and the market release progress. For this reason, the "trial time reduction" technique has been developed. The core principle of the technology is that the data obtained by a short-term test is converted into equivalent actual working condition time by establishing a correlation model of a specific working condition (such as acceleration stress and simulation environment) and an actual working condition, so that the test period is shortened, and the validity of a reliability evaluation result is ensured. However, the current test time conversion method in the industry still has obvious limitations that most traditional methods rely on an empirical formula or a single stress model (such as an Arrhenius equation only considering temperature stress), neglect the coupling effect of multiple stress factors in practical application, so that the conversion result has larger deviation from the real working condition, and the reliability evaluation error rate in a complex environment is even more than 20%, and in the related technology, the utilization rate of test data in the test time conversion process is lower. Disclosure of Invention The application aims to provide a test time conversion method and device for reliability evaluation and electronic equipment, so as to improve the utilization rate of test data in the process of converting test time based on the test data. In a first aspect of the embodiments of the present application, there is provided a test time conversion method for reliability evaluation, including: Determining a plurality of first test information of a product under the standard condition of actual use working conditions according to design information of the product, wherein the first test information comprises first failure rate data, a first environment coefficient of a core component of the product, a first scoring result of related personnel on the product and first environment information of the core component of the product, and the first environment information comprises first temperature information, first humidity information and a first vibration stress level; Acquiring a plurality of second test information of the product in a test scene, wherein each second test information relates to the test information of each test in a plurality of tests; determining test time conversion coefficients of the second test information and the corresponding first test information aiming at each second test information in the plurality of second test information to obtain a plurality of test time conversion coefficients; weighting and fusing the test time conversion coefficients to obtain a final test time conversion coefficient; and determining the accumulated test time of the product under the standard condition of the actual use working condition based on the final test time conversion coefficient. In a second aspect of the embodiments of the present application, there is provided a test time conversion apparatus for reliability evaluation, including: The device comprises a determining unit, a judging unit and a judging unit, wherein the determining unit is used for determining a plurality of first test information of a product under the actual use condition standard condition according to the design information of the product, the first test information comprises first failure rate data, a first environment coefficient of a core component of the product, a first scoring result of related personnel on the product and first environment information of the core component of the product, and the first environment information comprises first temperature information, first humidity information and a first vibration stress level; the acquisition unit is used for acquiring a plurality of second test information of the product in a test scene, wherein each seco