计算机应用与软件2016，Vol.33Issue(5)：77-80,4.DOI:10.3969/j.issn.1000-386x.2016.05.019
对焦运动的模糊 PID 控制方法
FUZZY-PID CONTROL METHOD FOR FOCUS MOVEMENT
摘要
Abstract
In this paper we study a fuzzy-PID control-based Z-axis focus movement approach in light of the auto-focusing for biological tissue characteristics and analysis instruments.Based on golden section search to get the expected movement position,first we built the mathematical simulation model of Z-axis focus movement,and designed the structure of fuzzy-PID.Then,we implemented the fuzzy-PID controller-based simulation and analysis on Z-axis focus movement,and revealed the rule of the effects of variation amount of P (proportion constant),I (integration coefficient)and D (differential coefficient)on Z-axis focus movement errors.Finally,we realised the fuzzy-PID control on Z-axis focus movement.It was shown by the experiment that the control approach described in the paper had a significant improvement in responding speed than traditional PID control,and this verified the advantages of strong dynamic performance and good robustness of the fuzzy-PID control-based Z-axis focus approach proposed by the authors.关键词
对焦/黄金分割法/模糊 PID 控制/PLCKey words
Focusing/Golden section search/Fuzzy-/PID control/PLC分类
信息技术与安全科学引用本文复制引用
程昊,胡洁,彭颖红..对焦运动的模糊 PID 控制方法[J].计算机应用与软件,2016,33(5):77-80,4.基金项目
国家重大仪器专项（2013YQ030651）。 （）
