Abstract:Based on the development of BPCU automatic test platform for multi-electric aircraft, this paper studies the overall layout and design scheme of communication network. Firstly, the AFDX bus used in BPCU communication network and the Ethernet technology used in communication between computer systems are analyzed. Secondly, the communication network and communication scheme are designed according to the overall architecture of BPCU test platform. Multi-thread synchronous communication is used to ensure the high efficiency and stability of the communication system. The C language program is written in development environment of VC++ to realize the overall communication function. Finally, the feasibility of the communication network was verified by experiments.