一种飞艇半物理仿真系统ARINC429驱动的设计与实现

Design and Implementation of a ARINC429 Driver for Semi- physical Simulation System[JZ)][HS)]

摘要:

为了满足飞艇实际飞行过程对通信可靠性和实时性的需求,半物理仿真系统的飞艇模型计算机采用以PC为平台的Xpc嵌入式实时系统,飞控计算机采用以PowerPC为平台的VxWork嵌入式实时系统,通过ARINC429协议完成数据通讯；硬件上,PowerPC通过桥接芯片访问并控制PCI设备；软件上,按照Xpc系统和vxWork系统PCI设备驱动程序的编写流程,分析了xPC内存驱动框架和vxBus驱动框架关键技术点,设计了飞艇模型计算机Xpc和飞控计算机Vxwork的ARINC429通讯卡驱动程序；通过实际的应用,证实所开发的ARINC429驱动程序满足飞艇半物理仿真平台数据通讯的可靠性和实时性。

Abstract:

In order to meet the demand of communication reliability and real-time for airship in actual flight process, the airship model computer of semi-physical simulation system uses an embedded real-time system Xpc which uses PC as a platform, flight control computer uses an embedded real-time system VxWork which uses PowerPC as a platform,through the ARINC429 protocol for data communications.In hardware, PowerPC accesses and controls PCI devices through the bridge chip; in software, in accordance with written procedures of PCI device drivers in Xpc system and vxWork system,it analyzed the key technical points of the xPC memory drive frame and the vxBus drive frame, designed the communication card driver ARINC429 of airship computer model Xpc and flight control computer Vxwork. Through practical application, it confirmed the development of the ARINC429 driver meet the reliability and real-time of data communications for airship semi-physical simulation platform. 