LED灯饰系统脱机控制器的设计与实现

发布时间：2018-03-28 10:45

本文选题：发光二极管　切入点：现场可编程门阵列　出处：《华南理工大学》2010年硕士论文

【摘要】： LED已有四十多年的历史,近年LED技术取得了飞速的发展,新产品不断出现,并已产生很多新兴产业。从国家到地区都意识到LED产业发展行重要性与战略性。本文介绍的LED城市景观灯饰控制系统不同于以往的霓虹灯广告系统与传统的LED显示屏控制系统。LED城市景观灯饰控制系统具有实时性,非实时性等多种控制方式,并且LED像素灯分布面积广,像素分布不规则,像素规模大等特点。这些特点要求LED城市景观灯饰控制系统具有很强的工程适应性。LED城市景观灯饰控制系统的一个子控制系统,脱机控制器的研制是本文的主讲内容。 SD卡是一种市面上流行的小体积大容量存储媒介,具有很好的通用性。并且适合应用于本文所述的脱机控制器。FPGA是一种高速、应用范围广、集成度高的可编程硬件芯片,具有硬件并行特性,适合于脱机控制器的研制。本文利用SD卡的大容量与体积小的特点和FPGA高速并行处理的特点,制作出适合于少像素、多效果、易部署的脱机控制器。脱机控制器是LED城市灯饰控制系统的一个子控制器。本文的主要工作内容有: 1.根据LED城市灯饰控制系统的市场需要、工程技术要求和特点。设计脱机控制器框架。 2.根据脱机控制器功能要求,与PC软件开发人员共同设计系统数据帧格式。 3.设计脱机控制器子板的硬件电路,包括AVR单片机、键盘、LCD显示屏、与母板通信模块等电路。 4.母板FPGA内的硬件编程,实现SD卡读、网口发送、与子板通信等功能。 5.设计实现AVR单片机软件,实现SD接口、FAT32文件系统、播放功能与控制功能。 6.对脱机控制器进行全面的测试,确保脱机控制器的各种功能、性能指标满足工程应用需要。本文是LED城市灯饰控制系统控制器的一个子系统,也是其中很重要的一个控制器,本项目的研制可以在一定程度上提升我国在LED城市灯饰控制方面的竞争力,推动产业的发展。
[Abstract]:LED has a history of more than 40 years. In recent years, LED technology has made rapid development, new products have been emerging, and many new industries have emerged. From country to region, we have realized the importance and strategy of LED industry development. The LED urban landscape lighting control system introduced in this paper is different from the neon advertising system and the traditional LED display screen control system. The LED urban landscape lighting control system has many control methods such as real-time, non-real-time and so on. And the LED pixel lamp has the characteristics of wide distribution area, irregular pixel distribution, large pixel scale and so on. These characteristics require that the LED urban landscape lighting control system has a strong engineering adaptability, which is a sub-control system of the LED urban landscape lighting control system. The development of offline controller is the main content of this paper. SD card is a popular storage medium with small volume and large capacity. It is suitable for offline controller. FPGA is a kind of programmable hardware chip with high speed, wide application range and high integration. It has hardware parallelism and is suitable for the development of offline controller. Based on the characteristics of large capacity and small volume of SD card and high speed parallel processing of FPGA, this paper makes it suitable for less pixels and more effects. Easy to deploy offline controller. Offline controller is a sub-controller of LED urban lighting control system. The main contents of this paper are as follows:. 1. According to the market demand, engineering technical requirements and characteristics of LED urban lighting control system, the offline controller framework is designed. 2.According to the functional requirements of offline controller, the system data frame format is designed together with PC software developers. 3. The hardware circuit of offline controller subboard is designed, including AVR single chip, keyboard and LCD display screen, communication module with motherboard and so on. 4. The hardware programming in the motherboard FPGA realizes the function of SD card reading, net port sending, communicating with subboard and so on. 5. Design and implement AVR MCU software, realize SD interface FAT32 file system, play function and control function. 6. The offline controller is tested comprehensively to ensure the various functions of offline controller and the performance index to meet the needs of engineering application. This paper is a subsystem of the LED urban lighting control system controller, and also a very important controller. The development of this project can improve the competitiveness of our country in the LED urban lighting control to some extent. Promote the development of industry.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2010
【分类号】：TP273;TM923.34

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