基于USB接口激光雕刻机控制系统的研究
发布时间：2018-09-12 12:50
【摘要】：随着电子技术和工业技术的不断发展与融合,激光技术的应用越来越广泛。而随之衍生的激光雕刻机在广告、艺术品加工等行业也成为诸多企业的焦点。在激光雕刻机行业,控制技术是决定企业能否占据核心竞争力的重要因素之一,控制系统的优劣更是客户决定是否购买产品的决定性因素。 本文针对小型桌面式激光雕刻机的控制技术展开研究,应用数据处理能力与控制能力均比较强大的DSP芯片作为激光雕刻机系统的控制核心单元,实现了硬件平台的搭建。在基本硬件平台的基础上,对激光雕刻机控制系统软件进入深入研究,设计完成了主要的控制软件模块,包括图像处理、激光雕刻扫描输出控制和掉电保护,为下一步研究开发性能独特的激光雕刻机奠定了基础。 本文的主要研究内容包括以下几个方面： (1)介绍了激光雕刻机系统的整体结构及其布局、激光雕刻的工作流程和系统的设计要求,阐述了整个控制系统的基本原理,拟定了系统的设计方案,确定了控制系统的主要研究内容。 (2)研究并设计了激光雕刻机控制系统,包括硬件系统和软件系统,硬件系统实现了步进电机的驱动控制,USB电路的设计和激光管的功率控制方案,软件系统包括上位机基本功能和DSP软件系统中解决的关键技术。 (3)分析了激光雕刻中涉及的图像处理基本原理,如图像的平移、旋转、多灰度等级划分等,并实现了Matlab实验仿真,使得激光雕刻机具有更佳的雕刻效果。 (4)分析比较了几种雕刻控制算法,提出了一种改进控制策略,确定了采用从低灰度等级开始雕刻的双向扫描方式,以提高雕刻速度,减少激光器的开闭次数。 (5)研究了激光雕刻机雕刻过程中掉电保护的算法。
[Abstract]:With the development and integration of electronic technology and industrial technology, laser technology is applied more and more widely. The resulting laser engraving machine in advertising, art processing and other industries have become the focus of many enterprises. In the laser engraving machine industry, the control technology is one of the important factors to determine whether the enterprise can occupy the core competitiveness, and the quality of the control system is the decisive factor for the customer to decide whether to buy the product or not. In this paper, the control technology of the small desktop laser engraving machine is studied. The DSP chip, which is powerful in data processing and control ability, is used as the control core unit of the laser engraving machine system, and the hardware platform is built. On the basis of the basic hardware platform, the control system software of laser engraving machine has been deeply studied, and the main control software modules have been designed and completed, including image processing, laser engraving scanning output control and power down protection. It lays a foundation for the further research and development of laser engraving machine with unique performance. The main research contents of this paper are as follows: (1) the whole structure and layout of laser engraving machine, the work flow of laser engraving and the design requirements of the system are introduced, and the basic principle of the whole control system is expounded. The main research contents of the control system are determined. (2) the control system of laser engraving machine, including hardware system and software system, is studied and designed. The hardware system realizes the design of the USB circuit of the stepper motor and the power control scheme of the laser tube. The software system includes the basic functions of the host computer and the key technologies in the DSP software system. (3) the basic principles of image processing involved in laser engraving, such as image translation, rotation, multi-grayscale classification, etc., are analyzed. The simulation of Matlab experiment makes the laser engraving machine have better engraving effect. (4) several carving control algorithms are analyzed and compared, and an improved control strategy is proposed. In order to improve the engraving speed and reduce the opening and closing times of laser, the bidirectional scanning method, which starts with low grayscale level, is determined. (5) the algorithm of power-off protection in the engraving process of laser engraving machine is studied.
【学位授予单位】：武汉理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP273;TN249
本文编号：2239055
[Abstract]:With the development and integration of electronic technology and industrial technology, laser technology is applied more and more widely. The resulting laser engraving machine in advertising, art processing and other industries have become the focus of many enterprises. In the laser engraving machine industry, the control technology is one of the important factors to determine whether the enterprise can occupy the core competitiveness, and the quality of the control system is the decisive factor for the customer to decide whether to buy the product or not. In this paper, the control technology of the small desktop laser engraving machine is studied. The DSP chip, which is powerful in data processing and control ability, is used as the control core unit of the laser engraving machine system, and the hardware platform is built. On the basis of the basic hardware platform, the control system software of laser engraving machine has been deeply studied, and the main control software modules have been designed and completed, including image processing, laser engraving scanning output control and power down protection. It lays a foundation for the further research and development of laser engraving machine with unique performance. The main research contents of this paper are as follows: (1) the whole structure and layout of laser engraving machine, the work flow of laser engraving and the design requirements of the system are introduced, and the basic principle of the whole control system is expounded. The main research contents of the control system are determined. (2) the control system of laser engraving machine, including hardware system and software system, is studied and designed. The hardware system realizes the design of the USB circuit of the stepper motor and the power control scheme of the laser tube. The software system includes the basic functions of the host computer and the key technologies in the DSP software system. (3) the basic principles of image processing involved in laser engraving, such as image translation, rotation, multi-grayscale classification, etc., are analyzed. The simulation of Matlab experiment makes the laser engraving machine have better engraving effect. (4) several carving control algorithms are analyzed and compared, and an improved control strategy is proposed. In order to improve the engraving speed and reduce the opening and closing times of laser, the bidirectional scanning method, which starts with low grayscale level, is determined. (5) the algorithm of power-off protection in the engraving process of laser engraving machine is studied.
【学位授予单位】：武汉理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP273;TN249
【引证文献】
相关硕士学位论文 前1条
1 韩玲;二氧化碳激光柔性传输系统的设计[D];燕山大学;2013年
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