应用于远程配电组件系统的改进型CAN总线设计与验证  

Design and Verification of Improved CAN Bus Applied to Remote Power Distribution Unit System

作　　者：陈潇然 张之江[1] 徐健龙 CHEN Xiaoran;ZHANG Zhijiang;XU Jianlong(Shanghai University,Shanghai 200000,China;Shanghai Aircraft Design&Research Institute,Shanghai 201000,China)

机构地区：[1]上海大学,上海200000 [2]上海飞机设计研究院,上海201000

出　　处：《电光与控制》2024年第5期112-117,共6页Electronics Optics & Control

摘　　要：为了将CAN总线应用于国产大飞机的远程配电组件系统,设计了一种改进型的CAN总线应用方案。针对国产大飞机远程配电组件系统的特殊性设计要求,选择合适的网络拓扑结构和通信速率,对CAN的标识符和数据域结构进行合理划分,并定义CAN消息转换为ARINC664报文的格式,然后设计附属RPDU和网关RPDU的通信模块。其中,基于ARINC825协议改进了CAN通信的可用性和完整性,基于TTCAN协议改进了ARINC825的通信调度机制,保证了CAN通信的确定性。实验结果证明所提方案满足设计要求,具有可行性。In order to apply CAN bus to the Remote Power Distribution Unit(RPDU)system of domestically-produced large aircraft,an improved application scheme of CAN bus is designed.According to the particularity of the RPDU system of domestically-produced large aircraft,the appropriate network topology and communication rate are selected.The structure of CAN identifiers and data domain is reasonably divided,and the format of converting CAN message into ARINC664 message is defined.Then,the communication module of satellite RPDU and gateway RPDU is designed,in which the availability and integrity of CAN communication are improved based on ARINC825 protocol,and the communication scheduling mechanism of ARINC825 is improved based on TTCAN protocol to ensure the certainty of CAN communication.The experimental results verify that the proposed scheme meets the design requirements and is feasible.

关 键 词：远程配电组件系统 CAN总线 ARINC825协议 TTCAN协议 

分 类 号：V351.36[航空宇航科学与技术—人机与环境工程] TN915.11[电子电信—通信与信息系统]