Automated Reliability Assessment of On-orbit Satellite Battery Pack Based on UML

The battery pack in the communication satellite system needs to always maintain reliable operation during long-term tasks, which puts high demands on the reliability of the battery pack. Because the on-orbit data of the communication satellite system has the characteristics of realtime, large data volume and few invalid data, how to quickly collect and collate the on-orbit reliability data and perform reliability evaluation in real time is the problem to be solved in this paper. At present, the traditional reliability assessment cannot automatically evaluate the reliability data, and it needs to perform multiple discrete preprocessing processes, which affects the real-time performance of reliability assessment. Therefore, this paper studies how to use UML technology to quickly capture satellite in-orbit data. And converted into reliability data, research MATLAB interface technology (packaging technology), combined with exponential distribution reliability evaluation model to form an automated on-orbit reliability evaluation program, in order to carry out satellite battery in-orbit data reliability assessment, improve reliability assessment work s efficiency.