Design And Realization Of Network Multimedia Control System

Along with the continuous development of the network technique, the speed of the network is faster and faster, handling official business at home is a fad now, remote control technique will be a tide of technique support; teleeducation will also be developing in a high speed, the scope of enterprise will extend at a very fast speed in the same way. The all development provides a wide space for remote control software. The paper mainly attends to improve the real-time performance of the remote control system. In order to solve the problem, the real-time performance of remote control system has been analyzed in-depth through data transmission quantum. By taking use of image process and multithreading technique, the delay of network transmission is reduced and the real-time performance is improved. It has important meaning both in theory and application.The paper has analyzed the current research of domestic and international at first. The system scheme and solved problems are put forward.Then, focusing on the real-time problem, the paper uses JPEG image compression arithmetic to realize image compression and use socket technology to complete network communication, apply image program, multithreading and windows message mechanism in the software. The remote screen watch function and the remote control function are realized scientifically by pure soft mode .It break through the technical obstacle and cost restrict in pracyically application. So, it brings very important effect in electronical network test system.Third, playing and recording audio data is realized by the means of calling the Windows API functions directly, and it solves the audio date process problem.Fouth, a multi-track playing control system is designed and realized in the paper.Last, the network media control system is designed and implemented and its real-time performance and server load are tested. The result indicates that it meets the customer requirement. There are some remote control softwares in market, most of them just achieved some simple function, for example, turning off the computer, downloading some files, control the mouse and keyboard. But these systems can remote control through the mechanism of transferring image and message. Its effect is very good; controlling the remote computer is same as operating the localhost.