LED封装设备新型控制器的研究

发布时间：2018-04-20 18:13

本文选题：Zynq-7000 + AP　；参考：《华南理工大学》2015年硕士论文

【摘要】：随着全球能源危机的加剧,LED因其具有绿色、环保、节能等特点而得到推广。国家也推出了一系列政策来大力推动LED产业的发展。LED封装环节作为LED产业链中的重要一环,其将直接影响LED的性能与质量。通过调研发现,目前LED封装设备控制系统的自动化程度并不高,而传统的PC Based解决方案存在实现成本偏高、系统通用性不强等问题,为此本文设计了基于Zynq-7000 AP SoC平台的LED封装设备新型控制器,提出将图像采集系统及运动控制系统集成到单片芯片的嵌入式解决方案,提高控制速度,满足封装设备的控制需求。本课题以Zedboard开发板为核心控制器件,配合自行设计的一块功能扩展板搭建了控制器研发初期的功能验证平台。并为了满足LED封装设备对运动控制系统高速、高精度、低冲击、可轨迹追踪的性能需求,研究了基于非对称S型加减速的速度规划算法,以及基于双层插补策略的轨迹跟踪算法。其中双层插补策略中以时间分割法做粗插补运算,而以最小偏差法做精插补运算。文中通过Matlab仿真验证了算法的正确性及可行性。并在此基础上,利用PS端的高速运算性能以及PL端的灵活可扩展性,在Zynq平台上实现了算法的移植和运动控制系统的构建。并通过搭建实验平台,验证了新型控制器的实际运行效果。另外,为了满足新型控制器对图像采集系统的需求,通过分析Zynq平台内部互联资源,设计了图像数据采集模块、图像存储模块以及图像显示模块。使得新型控制成为具备图像采集能力和运动控制能力的通用平台。根据应用场景的不同,只需往控制器内部注入不同的图像算法,便可实现控制器的复用。本课题的新型控制器的研究,可为我国对LED封装设备高性能控制系统的研究提供参考,对于提高我国LED生产线的国产化和自动化水平、推动我国LED封装设备产业的发展具有一定的现实意义和应用前景。
[Abstract]:With the aggravation of global energy crisis, LED has been popularized because of its green, environmental protection, energy saving and so on. The government has also introduced a series of policies to promote the development of LED industry. As an important part of the LED industry chain, the packaging link of LED will directly affect the performance and quality of LED. Through investigation, it is found that the automation degree of LED packaging equipment control system is not high, but the traditional PC Based solution has some problems, such as high cost of realization and weak generality of the system. In this paper, a new controller of LED packaging equipment based on Zynq-7000 AP SoC platform is designed, and the embedded solution of integrating image acquisition system and motion control system into a single chip is proposed to improve the control speed and meet the control requirements of packaging equipment. In this paper, the Zedboard development board is taken as the core controller, and a functional extension board designed by ourselves is used to build a functional verification platform for the initial development of the controller. In order to meet the requirement of high speed, high precision, low impact and traceability of motion control system for LED packaging equipment, a speed planning algorithm based on asymmetric S-type acceleration and deceleration is studied. And track tracking algorithm based on double interpolation strategy. In the bilevel interpolation strategy, the time division method is used for rough interpolation and the minimum deviation method for fine interpolation. The correctness and feasibility of the algorithm are verified by Matlab simulation. On this basis, the high speed computing performance of PS terminal and the flexible expansibility of PL terminal are used to realize the transplantation of algorithm and the construction of motion control system on Zynq platform. The actual operation effect of the new controller is verified by setting up the experimental platform. In addition, in order to meet the demand of the new controller for image acquisition system, the image data acquisition module, the image storage module and the image display module are designed by analyzing the internal interconnected resources of the Zynq platform. So that the new control has become a general platform with the ability of image acquisition and motion control. According to the different application scenarios, the controller can be multiplexed by injecting different image algorithms into the controller. The research of the new controller in this subject can provide reference for the research of the high performance control system of LED packaging equipment in our country, and can improve the localization and automation level of the LED production line in our country. To promote the development of LED packaging equipment industry in China has certain practical significance and application prospect.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN312.8

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