An in-situ testing method and testing device based on testability modeling

An in-situ test and testability technology, which is applied in the direction of testing electrical devices, measuring devices, and measuring electronics during transportation, can solve problems such as low accuracy, poor fault detection effect, and inability to accurately locate faults, and achieve accurate fault location , Improving the maintenance support ability and the effect of effective in-situ testing

Active Publication Date: 2022-03-08
CHINA HELICOPTER RES & DEV INST +1
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Problems solved by technology

[0003] The purpose of the present invention is: to propose an in-situ testing method and testing device based on testability modeling to solve the technical problems that the current testing method cannot accurately locate the fault by relying on empirical analysis, and the fault detection effect is poor and the accuracy is low

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  • An in-situ testing method and testing device based on testability modeling

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[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. 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.

[0024] The features of various aspects of the embodiments of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be pra...

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Abstract

The invention belongs to the technical field of airborne electronic system testing, and relates to an in-situ testing method and a testing device based on testability modeling. Test requirements and test points, according to the requirements of in-situ testing, design corresponding in-situ testing equipment, develop test procedures, and conduct in-situ testing. The present invention adopts fault model analysis requirements based on testability modeling, realizes accurate analysis of in-situ test requirements in the model development and design stage, realizes simultaneous development of model identification and in-situ test, and can accurately locate faults, realizing accurate , Effective in-situ testing, improving the maintenance guarantee capability of the model.

Description

technical field [0001] The invention belongs to the technical field of airborne electronic system testing, and relates to an in-situ testing method and testing device based on testability modeling. Background technique [0002] On a new type of helicopter, for the first time, the electromechanical management system is tested in situ to detect faults and isolate them to replaceable units in the field. The electromechanical management system mainly realizes the acquisition and control of the electrical device signals of the on-board transmission, fuel, hydraulic and other sub-systems. The cross-linking signals are complex and have many cascading levels. In terms of fault analysis, in-situ test manufacturers currently mainly collect fault cases that occur during user use as in-situ test requirements, relying on personal experience to analyze in-situ faults, the fault detection range is limited, and the test accuracy is insufficient. Inaccurate requirements also lead to cumbers...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
CPCG01R31/008
Inventor 宋帆陈德军邓细凤吴国宝姜晨
Owner CHINA HELICOPTER RES & DEV INST
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