作者：罗利平
  (上海铁路城市轨道交通设计研究院,200070,上海∥高级工程师)

    摘要：随着显示墙技术的发展，采用数字光处理(DLP)大屏幕投影显示技术已经是大势所趋。通过对大屏幕投影显示墙系统几个重要组成部分如显示技术、屏幕材质、屏幕尺寸等的探讨，结合武汉轨道交通的实践，提出：应用于监控系统的大屏幕投影显示墙，配置应采用DLP投影显示技术；应选用不变形、不反光、视角好、发光强度高的屏幕；屏幕尺寸可根据项目特点及人体视觉学等进行处理。
    关键词：监控系统； 大屏幕显示系统； 投影墙
    中图分类号TN 949.18; U 231+.92

Projection Wall of Largescale Display Unit in Supervising and Controlling System
Luo Liping
Abstract：With the development of display unit, the technology of adopting projector display unit with digital light processor (DLP) is a general trend in supervising and controlling system. According to the application of this technotogy in WuHan metro, this paper gives some suggestion on selecting the important components of the display unit, such as the projector material, the projector size and etc.,so as to meet the needs of passengers' visual charaders.
Key words：supervising and controlling system； largescale display system； projection wall
Author's addressShanghai Railway & Urban Rail Transit Design and Research Institute, 200070, Shanghai, China

来源：2008年第1期《城市轨道交通研究》杂志技术资料栏目