基于Art-Net协议的嵌入式调光系统的研究与设计

发布时间：2018-04-06 05:11

本文选题：Art-Net协议　切入点：DMX512协议　出处：《延边大学》2007年硕士论文

【摘要】： 调光系统广泛应用于剧场、体育馆、电视台演播厅、音乐会、大型LED广告牌等场所。灯光的效果对整个舞台的布景、运动员水平的发挥、广告效果以及音乐会场气氛都有很大的影响。近年来，随着科学技术的进步以及人们欣赏水平的提高，人们对灯光的控制效果提出了更高的要求。本文对现有的基于DMX512协议的调光系统进行了分析，找到了其不足之处，如：传输速度慢、可控灯具数量少等缺点。由于基于DMX512协议的调光系统的这些不足之处，在解决大型建筑物的调光控制时，，在实时性和灯具控制数量上无法满足实际的需要。因此，本文提出了基于Art-Net协议的嵌入式调光系统设计方案。该调光系统具有实时性好、可控灯具数量多、升级改造简单等特点，可广泛应用于剧场、体育馆、大型LED广告牌等需要控制几千个甚至上万个灯具的场所。整个调光系统在设计上利用Art-Net协议，硬件开发板以Intel IXP425网络处理器为核心、板上包含串口、Flash、PCI、实时时钟等必要的器件；软件采用美国风河公司的VxWorks实时操作系统，强大的硬件平台加上良好的实时操作系统，极大的提高了系统的整体性能和实时性。本文主要论述了基于Art-Net协议的嵌入式调光系统的软件设计部分内容，主要包括在VxWorks下硬件平台的BSP编写和器件的驱动程序的编写，并在此平台上开发应用程序，实现完整的调光系统。通过实际应用，基于Art-Net协议的嵌入式调光系统解决了对大型场所灯具亮度控制的需要，可广泛应用，市场前景好。
[Abstract]:Dimming system is widely used in theatres, gymnasiums, television studios, concerts, large LED billboards and other venues.The lighting effect has a great influence on the stage setting, the level of the athletes, the advertising effect and the atmosphere of the music venue.In recent years, with the progress of science and technology and the improvement of people's appreciation level, people put forward higher requirements to the control effect of lighting.In this paper, the existing dimming system based on DMX512 protocol is analyzed, and its shortcomings are found, such as slow transmission speed, low number of controllable lamps and so on.Because of these shortcomings of dimming system based on DMX512 protocol, the real-time and the quantity of lighting control can not meet the actual needs in solving the dimming control of large buildings.Therefore, an embedded dimming system based on Art-Net protocol is proposed in this paper.The dimming system has the characteristics of good real-time, large quantity of controlled lamps, simple upgrading and transformation, and can be widely used in theatres, gymnasiums, large LED billboards and other places where thousands or even tens of thousands of lamps need to be controlled.The whole dimming system uses Art-Net protocol in the design, the hardware development board takes Intel IXP425 network processor as the core, the board contains the necessary devices such as serial port flash IXP425, real-time clock, etc. The software adopts VxWorks real-time operating system of American Wind River Company.Strong hardware platform and good real-time operating system greatly improve the overall performance and real-time of the system.This paper mainly discusses the software design of the embedded dimming system based on Art-Net protocol, including the BSP programming of the hardware platform and the device driver program under the VxWorks, and develops the application program on this platform.Complete dimming system is realized.Through the practical application, the embedded dimming system based on Art-Net protocol solves the need of luminance control for large-scale lamps and lanterns. It can be widely used and has a good market prospect.
【学位授予单位】：延边大学
【学位级别】：硕士
【学位授予年份】：2007
【分类号】：TP273

【引证文献】