摘要
Abstract
To realize flat rotation control and accomplish a series of operations of a coin laser light, a flat control system based on free pendulum is designed, which realizes the flat control in a free pendulum system. The system takes Cortex-M3 as the core, and uses acceleration sensor MMA 7455 for the measurement of the deflection angle between the pendulum rod and the flat. It also adopts a 16-segment stepper motor controller, and uses an incremental closed-loop control algorithm[1] for the accurate control of the stepper motor and further the rotation control of the flat. The whole system has a high precision and strong anti-interference capability. It realizes the flat rotation, coin state adjustment and laser projection control.关键词
Cortex-M3单片机/步进电机/加速度传感器/增量式闭环控制Key words
Cortex-M3/stepper motor/acceleration sensor/incremental closed-loop control分类
信息技术与安全科学
