红外技术, 2018, 40 (3): 227, 网络出版: 2018-04-09
基于模糊控制的步进电机开环调焦系统设计
Design of Open-Loop Focusing System of Stepper Motor Based on Fuzzy Control
摘要
针对红外热像仪对调焦机构高精度、高可靠性的要求, 本文提出了一种基于模糊控制的步进电机开环调焦控制系统。该系统主要由 TMS320F28069微控制器、TMC260步进电机驱动芯片及外围电路构成。为了实现调焦系统精确定位的需求, 文中陈述了基于模糊控制的步进电机速度控制策略, 给出了系统的硬件电路设计。经过实际测试, 结果表明该系统可以满足实际使用要求。
Abstract
To address the requirements of high precision and high reliability in focusing systems of infrared thermal imagers, this paper proposes an open-loop focusing system for stepper motors based on fuzzy control. The system is composed of a TMS320F28069 microcontroller unit, a TMC260 stepper motor driver, and a peripheral circuit. In order to fulfill the precise positioning requirements of the focusing system, a speed control strategy is proposed for the stepper motor based on fuzzy control, along with a description of the hardware circuit design. Our experimental results confirm the feasibility of the system for practical use.
路欣宇, 苏俊波, 许红, 周春芬, 陈大乾, 刘鹏. 基于模糊控制的步进电机开环调焦系统设计[J]. 红外技术, 2018, 40(3): 227. LU Xinyu, SU Junbo, XU Hong, ZHOU Chunfen, CHEN Daqian, LIU Peng. Design of Open-Loop Focusing System of Stepper Motor Based on Fuzzy Control[J]. Infrared Technology, 2018, 40(3): 227.