摘要
针对某型无人机开切伞控制电路要求结构简单,可靠性高的特点,提出了一种基于双积分电路和GAL的设计方法;首先研究了开切伞电路的硬件结构,重点介绍了手摇方式下的开切伞电路模块,主要包括:双积分电路,比较单元,GAL译码三部分,阐明了双积分电路判断PWM波占空比变化的原理,然后使用WinCupl环境完成对GAL的编程,仿真;实际飞行试验表明,该方法实现了开切伞电路的逻辑功能,可以完成任务要求。
According to the simple structure and high reliability required by the parachute opening and closing circuit of UAV, a method based on GAL and double--integral circuit is introduced in this paper. First, the hardware structure of the circuit is researched, especially the circuit in the mode controlled by Remoter, three main parts is included： Double--integral circuit, comparing unites, and GAL, the principle how the change of PWM is detected by double--integral circuit is presented. Then, one method is introduced to develop and simulate GAL in the environment of Wincupl. The flight experiments indicate that the use of GAL realizes the logic of parachute opening and closing circuit and it performances well.
出处
《计算机测量与控制》
CSCD
北大核心
2009年第8期1523-1524,1547,共3页
Computer Measurement &Control
基金
航空科学基金(2007ZA55001)
