Design Of Center Control System Of Multimedia

Modern teaching system in the major institutions continues to advance,the traditional way dose not suit for the modernization. As a new form of education and modem teaching tools,multimedia central control technology to the teaching profession has brought new opportunities.The thesis aims at this situation,designs multimedia central control system based on SCM.(1) Through the research of the multimedia center-control system technology, analyzed and noted the key technology of the problem in the reseach , explained the development trend and the aim of the multimedia center-control system.(2) According to the technique indicator and the functional requirement of the system, the overall program of the system was given out, and the plain about hardware and software based on MCU has been designed.(3) according to the hardware designation.The hardware system centered with was designed,The design method and the principle of the system's every module(including the module of the switching of videa singal, the module of the switching of audio singal, the module of the switching of VGA singal,the module of condition controlling, infrared remote control codes simulation module of multimedia central control system, the module of serial communication)was given out.(4) The software of the system was designed.the idea of the overall design was expatiated. The software design and realization method of the system initialization module,the module of the switching of videa singal,the module of the switching of audio singal,the module of the switching of VGA singal and the module of condition controlling,,infrared remote control codes simulation module of multimedia central control system,the module of serial communication was given out.(5) It is debugged to software and imitated with the compatible systematic Keil C51 of oneboard computer C's language software development of 51 series , and the scheme which resolved to the probblemwas pult out.The design includes the module of the switching of videa singal,the module of the switching of audio singal,the module of the switching of VGA singal,the module of condition controlling,infrared remote control codes simulation module of multimedia central control system,the module of serial communication and the module of main controlling By analysis of the technology performance and comparison of controllers,we fix on the main struction of the module,We use the as the MCU. The thesis designs multimedia central control system, realises evey model's function, achieve our's effect, satisfies the request of multimedia teach.