The Research And Implementation Of Mobile Electronic Whiteboard Conference In Emergency Communication System

With the development of computer, communication and electronic technology, mobile communication technology is playing a more and more important role now in people's lives. Since the emergence of 2.5G, mobile phones can be able to access the networks through GPRS. As the issuance of 3G license in China, wireless communications will produce even greater changes in people's lives, providing more convenience and new. experience for human beings. 3G is aimed at the integration of cellular mobile communication network and the Internet, which are currently the most successful and potential networks. A 3G terminal can access the mobile network, then users can enjoy a wealth of Internet services. At present, the CPU processing ability of mobile phones are more and more powerful, and the storage space and display screen is becoming bigger and bigger. Now with a mobile, you can browse the Web, send or receive an e-mail, watch movies or participate in an audio or video conference. However, in some situations, users can not make a clear, accurate and simple expression only with the communication of voice and text. Using the graphics as a supplementary explanation, people will reach better results.In this paper, first it introduces the background and the development status of emergency communication, then it describes the standards of T.120 which is used to develop data conference systems, and it also shows how to develop softwares on a J2ME platform for mobile applications. Then it introduces the main functions of the system, the development environment and how to build the system. It also describes the design and implementation of the mobile whiteboard conference system. In this part, it introduces the system's structure, and implements the server of the conference center and conference terminals, which are the most important two components, then it introduces the procedures of realizing the conference function. It also shows the realization of the multi-point communications and conference function, and it also describes the process of how to realize the electronic Whiteboard function in mobile phones. Finally, this paper describes the system test, and sums up for all the work and makes prospects.