Method for testing and verifying information flow among spacecraft
A technology of test verification and information flow, which is applied in the field of spacecraft system-level test design and verification, can solve problems such as lack of availability, lack of functionality and performance of spacecraft, lack of availability of information flow design schemes, lack of information flow test verification, etc., to achieve The effect of improving accuracy, improving pertinence, improving efficiency and accuracy
Active Publication Date: 2015-05-06
BEIJING INST OF SPACECRAFT SYST ENG
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Problems solved by technology
At present, in the AI&T (Assembly Integration&Test) stage of aircraft, there is a lack of support for complex information flow test verification strategies and method systems. For the operation of spacecraft information flow network entities, the impact of key point failures in information flow networks on spacecraft functions and performance, and information There is a lack of effective means to evaluate the feasibility and performance of flow design schemes, resulting in a serious lack of work in information flow testing and verification
This status quo can no longer meet the requirements of complex spacecraft test coverage for test design, and it is urgent to find a method to support complex information flow verification
Method used
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[0058] Taking the moon-earth high-speed reentry and return aircraft service cabin and information flow verification between the return vehicle as an example, the specific steps are as follows:
[0059] (1) Extract the information flow corresponding to each signal to be tested between the service module and the spacecraft, including 2 switch signals, 1 negative pulse signal and 1 bus signal according to the signal characteristics. Each information flow is described by elements such as source node, sink node, signal characteristics and signal transmission path. The specific results are shown in Table 1:
[0060] Table 1
[0061]
[0062] (2) Extend the information flow:
[0063] 1) For the separated signal information flow whose signal characteristic is a switching signal, it needs to be extended to the source end. In the phase of spacecraft electrical testing, from the perspective of testability, some signals are simulated by ground equipment, thus becoming the source of ...
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The invention discloses a method for testing and verifying information flow among spacecraft. The method comprises the following steps: extracting information flow corresponding to each signal to be tested among the spacecraft according to a test requirement, and extending the extracted information flow according to different signal features of the signals to be tested; generating test cases by adopting different methods according to different signal features respectively; testing the information flow of each signal to be tested among the spacecraft by using the generated test cases to obtain a test result. By adopting the method, information flow test among the spacecraft is realized, and a rapid and effective test method is provided for testing among the spacecraft.
Description
technical field [0001] The invention relates to an information flow test and verification method, in particular to an information flow test and verification method between spacecraft, and belongs to the field of spacecraft system-level test design and verification. Background technique [0002] With the increasing complexity of the missions and working modes of the spacecraft, a combination of two or even more spacecraft in series has emerged in a specific field. For example, the joint working mode after the rendezvous and docking of the spacecraft and the space station, the four-device joint working mode of the unmanned lunar sampling return spacecraft, etc. Compared with a single spacecraft, how to verify whether the function and performance of a multi-spacecraft assembly meet the requirements is a new topic for us. The test and verification of information flow between spacecraft is one of the important research focuses. At present, in the AI&T (Assembly Integration&Test...
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IPC IPC(8): B64G99/00
Inventor 富小薇傅晓晶王志富杨聪伟程慧霞裴楠赵阳李达宋世民王少林胡勇赵峰韩爱玲付文超曹宇罗光辰薛亮王勇幺飞时光
Owner BEIJING INST OF SPACECRAFT SYST ENG