Design And Implementation Of Control System Software For A LED Screen Display

With the rapid development of information in our society,control technology of LED screen makes a great progress in the information field.Development of the technique of gray scale control,display of true color images,agility and high-efficient of drive circuit,and the improving skill of control system all incarnate the great progress of the LED-industry technology.In addition,with the development of network,intelligentized network control and net-join control technology are also widely applied to the information display system consisting of multi-displaying devices and multi-media system.How to design for editing and controlling system of LED Screen display becomes an important problem.Firstly,this thesis proposes the necessity to develop edit and control system of LED screen according to the development of control technology of LED screen.After analyzing the shortages of the existing control system of LED screen,this thesis proposes an improved control system of LED screen based on Visual C++.A deeply research of VC++ platform and MFC is made,so that a design scheme based on MFC is established.Then the general structure design of LED control system is introduced,and a detailed design of the control system's function is given.Considering the characteristics of LED's programs,a file storage format fit to program management is designed.The thesis presents the design idea and implementation of the graphical interface based on MFC.The establishment of program list, achievement of special effect,data transmission and play control of program are expatiated. The technology related in this part mainly includes multi-language technology,the GDI/GDI+ technology,the directshow technology,and the Serial communication technology.Then a test process in the laboratory is given,and the control system of LED screen is used in field.The conclusion and the future work are discussed at the end of this thesis.