机载数据总线拓扑结构的数学描述

摘要

Airborne data bus is used to transfer data in order to share information as the nerve center of modern fighter plane.Mathematical symbol of line transmission mode,differential transmission,multiple bus and redundant of data bus is regulated,and the topology of RS-232,RS-422,RS-485,ARINC429 and MIL-STD-1553B is analyzed respectively,and format description of their topology is given with some instance.Concise,rigorous,unambiguous mathematical description of topology of airborne data bus contributes to better understanding,provides theoretical basis for further topology visualization and avionics system integration.%机载数据总线作为现代作战飞机的神经中枢,主要用于数据传输,以达到信息共享的目的.规定了总线线路传输模式、差分传输、多总线和余度的数学符号表示,分别分析了RS-232、RS-422、RS-485、ARINC429和MIL-STD-1553B总线的拓扑结构,并结合实例给出了相应的数学描述.简洁、严谨、无歧义的数学描述有利于对机载数据总线拓扑结构的理解,为进一步的总线拓扑结构可视化和航空电子系统的系统集成提供了理论基础.