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Space multi-phase mission system reliability assessment method and system

A reliable, multi-stage technology, applied in character and pattern recognition, special data processing applications, instruments, etc., to achieve accurate system reliability evaluation results, solve the problem of cross-stage reuse of units, solve the problems of association and processing conversion

Inactive Publication Date: 2018-03-16
CHINA AEROSPACE STANDARDIZATION INST
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Problems solved by technology

[0005] The technical problem of the present invention is to overcome the deficiencies of the prior art, and provide a reliability evaluation method and system for aerospace multi-stage mission systems, aiming to solve the problem of association and processing and conversion of multi-source reliability data, and make full use of different types of multiple System reliability assessment based on source reliability data to make system reliability assessment results more accurate

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  • Space multi-phase mission system reliability assessment method and system
  • Space multi-phase mission system reliability assessment method and system
  • Space multi-phase mission system reliability assessment method and system

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Embodiment Construction

[0040] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the public implementation manners of the present invention in detail with reference to the accompanying drawings.

[0041] refer to figure 1 , shows a flow chart of the steps of a method for evaluating the reliability of an aerospace multi-stage mission system in an embodiment of the present invention. In this embodiment, the method for evaluating the reliability of the aerospace multi-stage mission system includes:

[0042] Step 101, classifying multi-source reliability data.

[0043] In this embodiment, the multi-source reliability data may be classified according to any at least one of the source of the multi-source reliability data, the development stage to which it belongs, the corresponding environmental conditions, and the product level to which it belongs.

[0044] For example, according to different sources of nature (such as e...

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Abstract

The invention discloses a space multi-phase mission system reliability assessment method and system. The method comprises the steps of classifying multi-source reliability data; according to a classification result of the multi-source reliability data, establishing a multi-source reliability data fusion framework, and obtaining fused data; according to system features of a space multi-phase mission system, building a system reliability model; according to the fused data in the multi-source reliability data fusion framework, quantizing the system reliability model; according to a quantizing result of the system reliability model, obtaining the reliability of the space multi-phase mission system. Through the method, the problems of association and processing conversion of multi-source reliability data are solved; and different types of multi-source reliability data are fully utilized for performing system reliability assessment, so that a system reliability assessment result is more accurate.

Description

technical field [0001] The invention belongs to the technical field of system reliability, and in particular relates to a reliability evaluation method and system for an aerospace multi-stage task system. Background technique [0002] A Phased-Mission System (PMS) refers to a complex system consisting of multiple time-continuous, non-overlapping mission stages, with multiple mission consequence states. In each mission stage, the system needs to complete different mission objectives and face different environmental conditions and reliability requirements. Therefore, each mission phase has a different system architecture, success criteria, reliability requirements, and unit failure behavior. [0003] Aerospace multi-phase mission system (Astronautically Phased-Mission System, APMS) refers to the multi-phase mission system in the aerospace field with complex system structure and functions, high reliability requirements, and difficult maintenance support during the mission proc...

Claims

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Application Information

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IPC IPC(8): G06K9/62G06F17/50
CPCG06F30/20G06F18/254
Inventor 李孝鹏周文明李福秋覃沙陈露张桅陈凤熹
Owner CHINA AEROSPACE STANDARDIZATION INST
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