CASIA OpenIR  > 毕业生  > 硕士学位论文
大型数字水幕系统的设计与实现
其他题名The Design and Implementation of a Digitized Water Display System
陶钧
学位类型工学硕士
导师曾大军 ; 耿征
2010-05-26
学位授予单位中国科学院研究生院
学位授予地点中国科学院自动化研究所
学位专业控制理论与控制工程
关键词数字水幕 Rs-485 通信协议 电磁阀 模块化 Digitized Water Display Rs-485 Communication Protocol Electromagnetic Valve Modularized
摘要本论文阐述了一种新型的数字水幕显示系统及其相关技术的设计、实现、操作和改进。随着显示技术日益成熟,显示技术本身也开始向着多元化方向发展。不断涌现于各种展馆、商场的新型显示设备不仅反映了当前显示技术的发展趋势,也足以说明人们越来越渴望更多、更具强烈感官刺激的显示设备来传递信息。本文正是基于该背景考虑,研制了一套具有我国自主知识产权的数字水幕系统,并成功应用于中国科学技术馆信息展厅。本文研制的数字水幕系统与传统的使用亮度/颜色构建的点阵式平面显示设备不同,没有特定的显示屏幕,水幕本身就是一个信息演示体,通过精确控制一组喷嘴阵列的时序,再利用空间竖直下落的小水柱便可形成动态的图案或文字信息。本文首先分析数字水幕的系统架构,对水幕演示体的核心部件和控制电路均采用模块化设计方案,这样较易实现各种尺寸要求的水幕系统(数米高和数十米宽)。然后分析了水幕系统自身结构特点,构建了单片机为主的控制电路和驱动电路等;并基于RS-485总线通信,编制了软件通信模块,通信协议等。最后深入分析了系统的机械系统,提出了“二合一”组合式水箱结构设计以及单阀控制多喷嘴的电磁阀结构,通过系统联调和实践运行证明,这种设计方案不仅有效地增加了高清晰度的水幕演示效果,也保证了系统可长时间的安全、稳定运行。
其他摘要This thesis describes a two-year research and development effort in designing, implementing, operating, and improving a novel digitized water display (DWD) system and related technologies. With the increasing maturation of display technologies, diversified development is a new trend. Flat screen displays have become pervasive and omnipresent in modern society and people have developed fatigues on "regular format" of traditional displays. Novel display mechanism and technologies, together with user interactive contents, would enable a strong visual impact. To explore this possibility, we have developed an unconventional digitized water display (DWD) system and have successfully implemented a fully operational DWD system with four modules in China Science and Technology Museum (CSTM). In sharp contrast to traditional display screens which use the brightness/color of built-in array of pixels on a flat panel to display information contents, the DWD system has no fixed display screen. Instead, we use an array of water nozzles to precisely control the timing of water drops so that the pattern of water drops form a dynamic display screen to show text/graphic information. In this thesis, the system architecture of digitized water display (DWD) is analyzed first, and modularized design is used for core parts and control circuit. Such digitized water display can be easily scaled to several meters in height and width, and is able to produce impressive visual impact, making it well suited for various indoor/outdoor digital signage applications such as advertisements in exhibitions, hotels and shopping malls. After analyzing the structure issue of DWD system, an MCU-based control circuit, communication protocol and software based on RS-485 bus is designed and implemented. Finally, we have designed a two-in-one combined water tank and multi-nozzle electromagnetic valves. The DWD system constructed in China science and Technology Museum (CSTM) has been running stably, and it has been one of the most attractive items in the exhibition.
馆藏号XWLW1523
其他标识符200728014628001
语种中文
文献类型学位论文
条目标识符http://ir.ia.ac.cn/handle/173211/7510
专题毕业生_硕士学位论文
推荐引用方式
GB/T 7714
陶钧. 大型数字水幕系统的设计与实现[D]. 中国科学院自动化研究所. 中国科学院研究生院,2010.
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