Data transmission subsystem interface converter for satellite AIT

摘要

Data transmission subsystem interface converter is one of the key equipments in satellite Assembly, integration and test (AIT). To realize high-speed data transmission and communication protocol verification for data transmission subsystem in satellite AIT, an interface converter is designed. In the paper, a high efficiency data transmission path and fast data format conversion method are proposed to solve the problem on converting large amounts of data with different interface protocol types at the same time. Moreover, a multi-port communication method based on a lightweight TCP/IP protocol (LwIP) stack is built, and achieve data interaction between multiple network ports on the the same network segment. Finally, the self-validation test results indicate that the interface converter has high efficiency and accurate data interface conversion capability and good stability, and also shows good performance in the actual satellite AIT, which provides a reliable reference for data protocol verification during satellite AIT.