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Computer Tele-control System For LED Display Screen

Posted on:2003-05-25Degree:MasterType:Thesis
Country:ChinaCandidate:H P MaFull Text:PDF
GTID:2168360092475268Subject:Instrumentation
Abstract/Summary:PDF Full Text Request
The display screen system of LED( light-emitting diode) synthesizes the integrative modern new technology of the technology,such as photoelectricity,computer and control,etc.,It combines closely with traditional advertising and becomes the new media instrument of propaganda,Apply to the exhibition centre extensively,The information of public places,such as financial market,hospital,stadium,airport,quay,station,street,expressway,etc. shows and advertising. LED display screen system finish characters input and show by display screen,display screen controller 3 main parts of computer that mode control form mainly,This system can show Chinese,English and can show the figure symbol or the special figure symbol which the user appointed too . LED display screen because content newer and convenient,display mode variety and vision feel relatively ideal time receive by user favourably,It is the new-type scientific and technological products of high-speed development in recent years while propagating of advertisement( public) too,But because its system forms a complete set complicatedly,can only finish nearby to control,plant maintenance is relatively complicated,Make a lot of places used receive very great restriction,Can't realize long-range to control and transmit information and need this technology need further perfection and development in step.A systematic one is to only shows the charactersing for this,LED's display screen of characters system of the figure symbol is studied,Realize through this system what this display screen show content long-range to control,at any time go on and show basic purpose that content upgrades . Realize long-range way that control we adopt at present management convenient,run cost low carrying on long-range to control through public telephone network relatively,Already original each LED display screen 3 parts of system on the spot( display screen,controller,computer) Change into whole system adopt two computer can control and show display screens and controllers of place all,Join through public telephone network controller realize go on and control and realize and show to LED display screen content upgrade,Realize computer to each display screen long-range to control and upgrade content transmit,Increase modem and one design with special-purpose on the modem and LED interface board of display screen of joining fully and newly at hardware of system,This is to make up into a special-purpose long-range controller the controller in the modem and original system.Because adopt the long-range control technology,consider it with the systematic compatibility of the original display screen,Input software software adopt and use but former software that producer offer realize the long-range way to control totally,This needs two computers to realize this function,the first computer is used in editor's content of showing and transmitted data to the second computer,The second computer is used for receiving the first datum sent of data and carrying on the buffer memory of data. When the display screen needing to show needs content to be upgraded,connect the second computerwith public telephone,Transmit special-purpose controller to reach distant place through software data through modem data through public telephone network,The special-purpose controller accepts the data,put LED display in order and control,finish data transmission. Have data when upgrading,LED display screen control and show by controller. Do not need to connect with public telephone network .This achievement adopts the typical mode of transforming the traditional industry of skill of the information,is transformed through the system,Having reduced the stream of people,material flow,the work flows,Great quickening information flow,has reduced administrative expenses of using,has expanded the range of application of LED display screen. System adopt pairs of mouthfuls of RAM,serial data transceiver MAX232,etc. latest electronic devices and components guarantee this achievement have application technology gone on mo...
Keywords/Search Tags:LED display screen, the computer, the modem, Microprocessor, MCU, Multi-RAM
PDF Full Text Request
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