A Test Method Based on State Diagram in Small Satellite Test

Abstract

Disclosed is a state diagram based test method in a small satellite test. State nodes in a state diagram are formed through a finite set of the abstract states of telemetry parameters, transfer conditions of states are formed through a finite set of satellite autonomous change or remote control instructions, and the transfer conditions and the state nodes are drawn on a graph to form a test state diagram. According to test needs, correlation paths in the test state diagram are selected to form a test sequence for a scheduling module and a state interpretation module to execute. Every time when an execution element in the test sequence is executed, a comparison is made between obtained satellite real-time states and expected states, and in case that comparison results are completely consistent or deviations are within an allowed error range, it is considered that a test succeeds. According to the invention, the satellite autonomous change and instruction change are simultaneously taken into consideration for the test, details of test services are expressed through a state diagram mode, different test schemes are automatically generated, test personnel can rapidly design test tasks, and the test efficiency is improved.

Description

technical field [0001] The invention belongs to the testing field and relates to a small satellite automatic testing method. Background technique [0002] In the current small satellite test, the remote control command sequence is usually used as the test benchmark, and the telemetry parameters before and after the execution of the remote control command are compared to determine whether the satellite test is passed. The general test method in the implementation process is: (1) Manually write the test command sequence; (2) Send the remote control command to the satellite one by one according to the sequence of the command sequence, and the satellite executes the corresponding action according to the remote control command, and at the same time generates the measured data of the satellite; ( 3) Interpret according to the post-judgment logic of the instruction. [0003] In this testing method, the testers need to consider the main-standby relationship, mode, and status of var...

AI Technical Summary

Problems solved by technology

Moreover, in this test method, the influence of satellite autonomous changes on the test is not taken into consideration, which may have a certain impact on the accuracy of the test results

In addition, this test method itself cannot intuitively display the current status of the satellite. If you want to view or monitor the various statuses of the satellite in real time, you need to do a lot of extra work

[0004] To sum up, the currently used satellite testing method seriously restricts the improvement of testing efficiency, prolongs the testing period and increases the testing cost in the case of limited energy, ability and quantity of testers.

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