论文部分内容阅读
根据微型无人侦察机系统机载摄像机需求,设计了一种用步进电机控制的摄像机镜头快速变倍同步聚焦控制电路。利用无人侦察机飞控系统内置ARM处理器的富余I/O资源,结合SiTI公司的MD127步进电机驱动器,完成了对两相步进电机的驱动,实现了高速飞行状态下平稳快速的变焦与聚焦功能。经过飞行测试,本系统能够安全可靠、精确稳定地工作。
According to the requirements of the airborne camera system of the mini unmanned reconnaissance aircraft system, a synchronous zooming control circuit of the camera lens with stepper motor control is designed. Using unmanned reconnaissance aircraft flight control system built-in ARM processor’s spare I / O resources, combined with SiTI’s MD127 stepper motor driver, completed the two-phase stepper motor drive to achieve a smooth high-speed flight state zoom With focus function. After flight testing, the system can be safe, reliable, accurate and stable work.