机载远程数据集中器协议转换方法研究

Research on Protocol Conversion Approach of Airborne Remote Data Concentrator

摘要:

针对机载远程数据集中器(RDC)的数据转换功能,在对ARINC429和AFDX两种机载数据总线分析的基础上,提出了一种基于配置信息中虚拟链路(VL,virtual link)与ARINC429数据标号的适配关系的数据转换方法;对RDC功能需求进行分析并给出整体设计方案,采用模块化设计并对各模块功能进行了详细的介绍,其中配置信息模块的应用增加了RDC数据转换功能的灵活性;在新型航电系统架构下,通过对RDC之间基于VL的通信过程中的数据转换过程进行仿真和分析,验证此方法的可行性;协议转换方法的研究为RDC的整体功能仿真研究奠定了基础。

Abstract:

Aimed at the data conversion function of the airborne Remote Data Concentrator (RDC),ARINC429 and AFDX,two kinds of airborne data bus is introduced and analyzed in this paper,and the conversion method based on the relationship of Virtual Link and Label of ARINC429 in configuration information is proposed. Functional requirement of RDC is analyzed and the overall design is given. Modular design is used and functions of each module are introduced in detail,and the flexibility of data conversion function of RDC is increased by using the configuration information module. In the modern avionics system architecture,through the simulation and analysis of the process of data conversion in the communication process based on the VL between the RDC,the feasibility of the method of data conversion is proved. Research on the method of data conversion lays a foundation for the research of the overall function simulation of RDC.