Design and research of vacuum thermal environment test network in spacecraft development process

In the vacuum thermal environment test of spacecraft, IP program-controlled power supply and IP-based control equipment are deployed and applied on a large scale. The vacuum thermal environment test network system provides various IP test equipment access interfaces, and provides data transmission links for the vacuum thermal measurement and control system. This system has many advantages such as strong scalability, high stability, and wide coverage. In the design and research of the vacuum thermal environment test network system, LACP is used to expand the link bandwidth; Stacking technology realizes equipment redundancy; VPN technology realizes remote communication of measurement and control system, completes interconnection of all measurement and control subsystems of vacuum thermal environment test, realizes remote centralized measurement and control, centralized storage of test data and data sharing, and improves the informatization level of spacecraft development process.