基于VxWorks的多电飞机电气控制系统的软件研究

Research on Software for Electrical Control System of More Electric Aircraft Based on VxWorks

分析和研究了多电飞机电气系统及嵌入式实时操作系统VxWorks的特性,设计了基于Vx-Works和RS485串行总线技术的地面模拟样机;对系统的软件实现及VxWorks下串行通信等一些关键性的技术进行了论述;针对VxWorks中的图形开发包WindML和Zinc存在显示界面不友好、开发周期长的缺陷,采用LabWindows／CVI开发了上位机的监控系统,整个系统运行稳定、可靠,满足多电飞机电气控制系统地面模拟的需要。

This paper analyses the characters of the electrical system of the More Electric Aircraft (MEA) and the embeded real - time operation system VxWorks. A experimental prototype based on VxWorks and RS485 serial bus is designed and some important technologies are discussed in this paper, including the realization of the software and the serial communication within VxWorks. Since there exist some disadvantages in the figure development kit of VxWorks named Zinc, such as its display interfaces are not friendly and the development cycle supported by it is too long, Lab-Windows/CVI is applied in developing the monitor - control system of the host computer. The testing results indicates that the whole system is rather stable and reliable and can meet the experimental requirements of MEA' s electrical con-trolsystem.