Reliability modeling method and device for spaceflight measurement and control system
A technology of aerospace measurement and control and modeling method, which is applied in the field of aerospace measurement and control, and can solve the problems of low accuracy of reliability models
Pending Publication Date: 2021-04-02
NO 63921 UNIT OF PLA
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Problems solved by technology
[0004] Based on this, an embodiment of the present invention provides a reliability modeling method and device for an aerospace measurement and control system to solve the problem of low accuracy of the reliability model established in the prior art
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[0046] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details.
[0047] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.
[0048] see figure 1 , which is a schematic flow diagram of an embodiment of the reliability modeling method of the aerospace measurement and control system provided in this embodiment, and is described in detail as follows:
[0049] Step S101, acquiring the inherent reliability indexes of multiple components in the aerospace measurement and control system.
[0050] The reliability technology of aerospace measurement and control system has been studied for dec...
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The invention relates to the technical field of spaceflight measurement and control, and provides a reliability modeling method and device for a spaceflight measurement and control system, and the method comprises the steps: obtaining the inherent reliability indexes of a plurality of composition units in the spaceflight measurement and control system; determining a judgment basis for task execution success or failure of the aerospace measurement and control system according to the current measurement and control task requirements; according to the judgment basis and the working mode of the current spaceflight measurement and control system, determining the logic relationship between the constituent units; according to the logic relationship, constructing a first-layer reliability model for the overall scheme of the spaceflight measurement and control system according to time periods; and in each time period of the first-layer reliability model, constructing a second-layer reliabilitymodel according to the measurement and control service. According to the method and device, the actual situation of task execution of the system is completely followed, the maintainability, structuraldynamics and logic relationship complexity of the system are embodied, the characteristics of the system are accurately reflected, and a calculation basis is provided for obtaining a credible reliability quantification result.
Description
technical field [0001] The invention relates to the technical field of aerospace measurement and control, in particular to a reliability modeling method and device for an aerospace measurement and control system. Background technique [0002] Space missions are typical systems engineering, with many participating units, high engineering complexity, and high reliability requirements. The aerospace measurement and control system is the only link between the sky and the earth during the orbital operation of the spacecraft. It is a necessary means to ensure the reliable implementation of the project, and its own reliable operation is also very important. Reliability technology has been researched for decades, forming a complete theoretical system, including reliability analysis and evaluation, reliability distribution and other technical branches. Features such as powerful. [0003] High risk is a prominent feature of space missions, and high reliability is a basic requirement...
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Login to View More IPC IPC(8): G06F30/20
CPCG06F30/20G06F2119/02
Inventor 李瑭万鹏王志生杨洋汤达
Owner NO 63921 UNIT OF PLA