【摘要】 针对现有飞行器测试系统存在的外源数据兼容性差、现场配置迭代效率低、数据传输可靠性有限等问题，提出一种基于多总线协同架构的新型测试系统。系统以FPGA作为主控处理器，支持RS422、1553B和以太网3种总线接口数据的接收、融合与传输，利用千兆以太网通信模块设计实现配置指令的实时下发与程序存储器的在线更新，并为以太网通信模块设计支持处理UDT协议的功能模块。实验及仿真结果表明：系统支持采集并存储RS422数据和1553B总线数据，实现多总线数据协同记录功能；在线升级功支持在-40℃～100℃温度环境实现，自检显示升级完成耗时均低于1s；通过监测实验过程数据传输情况，使用UDT协议传输数据时，平均传输速率可达到454 Mbit/s，相比于UDP协议未出现数据丢失现象，显著提升数据传输可靠性。更多还原

【Abstract】 Aiming at the problems of poor compatibility with external data sources,low efficiency in field configuration iteration,and limited reliability of data transmission in existing aircraft test systems,an intelligent test system based on a multi-bus collaborative architecture is proposed.The system employs an FPGA as the core processor,supporting the reception,fusion,and transmission of data through three bus interfaces:RS422,1553B,and Ethernet.A gigabit Ethernet communication module is designed to enable real-time configuration command delivery and online updates of program memory,along with a functional module for processing the UDT protocol.Experimental and simulation results demonstrate that the system can collect and store RS422 data and 1553 Bbus data,achieving multi-bus data collaborative recording.The online upgrade function operates successfully in temperature environments of-40℃ ～100℃,with self-tests showing upgrade completion times consistently under 1 second.In simulated data input scenarios,using the UDT protocol achieves a data packet delivery accuracy rate of 99.8%,a significant improvement over the 87.5%rate of the UDP protocol,thereby enhancing data transmission reliability.更多还原