Satellite electronic load testing method

Abstract

The invention provides a satellite electronic load testing method. The satellite electronic load testing method is characterized in that the remote metering of a satellite is a signal for synchronizing an electronic load ground testing device to the satellite by time according to the rule of downloading at intervals based on the fixed time, and the information of the time in the satellite is extracted, so as to provide the time standard for the ground testing device; the ground testing device with the LXI (LAN extension for instrumentation) function is adopted, and the software and the network are utilized for controlling and inquiring, so as to synchronize the state variations of the ground testing device and the device in the satellite; the state stetting of the ground testing device is inquired and recorded on real time, and therefore, an accurate testing input condition is provided for interpreting the electronic load data. According to the satellite electronic load testing method, the risk caused by manual operation and mis-operation is further reduced after the introduction of a list of test examples. The satellite electronic load testing method is applicable to the condition that the satellite electronic load working modes are frequently switched and the ground testing device is to be correspondingly adjusted, which leads to slow update speed of related remote metering information. With the adoption of the satellite electronic load testing method, the manual operation link is simplified, the testing efficiency is raised, and the project realization is convenient.

Description

technical field [0001] The invention relates to a method for testing electronic loads, in particular to a method for testing electronic loads under full-satellite conditions, and belongs to the technical field of testing. Background technique [0002] After the electronic load is integrated and installed on the satellite, it is necessary to test the various functions and performances of the electronic load under the conditions of the entire satellite. In order to simulate the actual working conditions of the satellite in orbit, the ground equipment will simulate the actual signal to cooperate with the electronic load test. The electronic load receives the analog signal generated by the ground equipment in a wireless or wired manner, generates load data from the received analog signal according to the working mode and status, and transmits the data to the ground application system through digital transmission. By comparing the data generated by the electronic load with the e...

AI Technical Summary

Problems solved by technology

[0004] The existing electronic load test method under the whole satellite condition requires more manual participation and a low degree of automation. There are three problems in the following aspects:

The telemetry information of the electronic load is delayed, and the load state reflected by the telemetry information always lags behind the actual state change of the electronic load. Manually setting the ground equipment is easy to miss the corresponding load state, especially when the load state switching speed is fast.

[0006] 2. Manual setting of ground equipment is not conducive to accurate interpretation of load data

The status setting of the ground equipment is carried out according to the test rules of the whole satellite, and the status records of the ground equipment are all manually recorded, and the accuracy of the time is poor, making it difficult to compare the status of the ground equipment with the status of the electronic load on the satellite in terms of time. Accurate correspondence, and there is a deviation between the clock used on the satellite and the clock used on the ground. The longer the test time, the greater the time deviation between the satellite and the ground, which increases the difficulty of correctly interpreting the load data.

[0007] 3. Manual setting of ground equipment is prone to unexpected signals caused by wrong settings or misoperations, especially when the ground equipment setting process is complicated.

And this will cause the ground equipment to generate other unexpected analog signals, which will interfere with the interpretation of load data

This is also the main reason why on-board equipment is often used to verify ground equipment

[0008] These factors lead to inefficiency of electronic payload testing under full-star conditions

Images