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Design and implementation of large-screen control system

Author: ZhouWeiChen
Tutor: LiuGongShen；LingHuaJie
School: Shanghai Jiaotong University
Course: Electronics and Communication Engineering
Keywords: DLP projection Large screen projection system Wireless touch screen
CLC: TN873
Type: Master's thesis
Year: 2011
Downloads: 33
Quote: 1
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Abstract


Large-screen system has been widely used in many fields. In the power industry,large-screen system is widely used in order to meet the operational statusmonitoringand power automation scheduling of electricity dispatch system, DTS simulationteaching power dispatch, power system emergency agent control command and otherinformation display. Through the large screen for the dispatcher to provide a clearer,more realistic, more flexible man-machine interface for dispatch operator,give them areal-time convenient gridscheduling personnel from the overall understanding of theoperation.Of all the large screen system, DLP splicing large-screen system is widely used inthe power dispatch center equipment because of its advantage on high display quality,rich signal access and processing ability, high reliability and leading edge technology.This article describes that DLP large-screen splicing system works, include the systemstructure and operation mechanism. The article focuses on the problems and proposedsolutions of the large screen system in high resolution applications.Display on the large screen system usually changed in use, which the large-screensystem control method is proposed requirements. IPC is the core of large-screendisplay system equipment. The key to control the display on the big screen is how toachieve the control of industrial computer systems.There are two commonly used control methods. One is direct control, softwareinstalled on the IPC, the other way is network control, and the big screen system iscontrolled by a PC which installed the network client software via intranet. Bothmethods have their disadvantage is the need to increase the staff software trainingcosts, and there is which systemic risk caused by software malfunction. In this paper,we use central control system to control the large-screen system.The main componentin the control system is a wireless touch screen control and a host of crestron. Touchscreen link the host via wireless network; the host through the RS232 serial portcontrol the large screen IPC.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radio equipment,telecommunications equipment > Terminal equipment > Display device,the display
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