飞行模拟器航道罗盘控制系统的设计与实现

Research on Horizontal Situation Indicator of the Flight Simulator

研究了基于步进电机和光电编码器的飞行模拟器航道罗盘控制系统的设计与实现，给出了系统的硬件及软件设计。航道罗盘带有通信接口，在仪表控制计算机的指令下可以实现模拟飞机真实飞行姿态下航道罗盘指示相应飞行参数的功能。解决了仪表控制计算机与航道罗盘控制器间的串行通信及步进电机的速度控制和加减速控制问题，并给出了具体的软件设计方法，实现了航道罗盘的各项功能。

A horizontal situation indicator (HSI) of the flight simulator is developed. The control system of HSI is based on hybrid stepping motor and absolute encoder. Both the hardware and software design of HSI are given. The serial communication between the host computer and HSI is transported by DDE and RS-232. The speed control of stepping motor is resolved. The experiment result shows that the function of the system is realized when HSI is monitored by the host computer.