| 摘要: |
| 目的 为了解决印刷包装过程中柔性材料容易跑偏的问题，基于图像处理结合模糊PID控制提出一种自适应纠偏控制系统。方法 介绍纠偏系统工作原理，利用传感器检测包装材料边缘，经图像处理、分析后得到偏差量，利用纠偏算法生成相应驱动信号，实现对纠偏机构的控制。为了实现包装材料边缘识别，提出一种图像处理算法，包括图像预处理、边缘识别等。同时基于模糊PID原理设计一种纠偏控制器，通过模糊规则实现PID控制参数的自适应调节。最后搭建纠偏控制系统，并进行相关实验。结果 系统偏差可控制在1 mm以内，控制精度高，稳态性能比较理想。结论 设计的纠偏系统可满足印刷包装对柔性材料运行精度的要求。 |
| 关键词: 图像处理 纠偏 模糊PID控制 柔性材料 |
| DOI： |
| 分类号: |
| 基金项目:2016年广东省自然科学基金博士科研启动基金(2016A030310306)；2016年珠海市先进装备制造与材料成型技术重点实验室重点基金(201601A)；2016年广东省高等职业教育特色专业计划基金(2016GZPP055) |
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| Design of Adaptive Rectification System of Flexible Material Based on Image Processing |
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ZHOU Ji-yan, YU Zheng-hong
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Guangdong Institute of Science and Technology, Zhuhai 519090, China
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| Abstract: |
| The work aims to propose an adaptive rectification control system based on image processing and fuzzy PID control, in order to solve the problem of flexible material deviation in the process of package printing. The working principle of this rectification system was introduced and the packaging material edge was detected by the sensor. The deviation value was obtained by image processing and analysis. Then, the corresponding driving signals were generated based on the rectification algorithm to control the rectification mechanism. An image processing algorithm, including image preprocessing and edge recognition, was put forward for edge recognition of packaging material. Meanwhile, a rectification control system was designed based on the fuzzy PID principle. The adaptive adjustment of PID parameters was realized on the basis of fuzzy rules. Finally, the rectification control system was set up and the related experiments were carried out. System deviations could be controlled within 1 mm with high control accuracy and more ideal steady-state performance. The rectification system designed can meet the requirements of operation accuracy on flexible materials mainly used in package printing. |
| Key words: image processing, rectification, fuzzy PID control, flexible material |
