The Design And Implementation Of Match Remote Advising For Sport System

Network remote command service systems came true in resent years, along with the fast developing of the fast computing network, digital compressed technology and the large capability storage technology, Web-based remote command services in a variety of emergencies, natural disasters, military applications, sports, and other aspects can be applied.But, that is these systems' quality of service are restricted by the bottleneck of network bandwith and Internet flaws, Web-based remote command services are not used widely. It is a concerned task how to develop the remote command system for sport process which can fully utilize the computer network, intelligence and information technology.Sports competitions remote command system make the remote analysis of the data with the images, graphics, charts, in the form presented to the coaches to help coach to analysis the status of competition, athletes get the best score. Thus a well-designed sports remote command system for improving the Competition athletes, coaches assisted command plays an important role in competition. Through analysis and study critical technologies of the remote digital command system, we attempt to develop a computer sports games remote command system. System consists of two major components: Competition Field scene terminal, remote command and decision-making scene terminal. Features include: real-time images at the scene monitoring the court and real-time data transmission, on-site emergency command, competitions data analysis capabilities and so on.In the aspect of Real-time video transmission in the sports area the article base on the foundation of analyzing and comparing some standards of video coding at present,it realizes the function of compress the video data with the high ratio using video compression modules of H.263,gathers and deals with the monitoring video on time using the VFW and plays back of video streams using DirectShow.By transmitting the digital video through TCP, UDP, RTP, the system adopts W insock controls to transmit video and audio digital and using FTP Protocols to transmit file and date. The methods on emphases and dif faculties of the video data transmission on the network are presented such as the continuity of transmited data; network flux, Network delay time control, audio coding schemes and adjustments, multi-threading technology, etc. are introduced and given solutions and coding. Due to requirements of bandwidth, delay, and package loss, transmission of real-time video and audio of sport match over Internet still face many hallenges. The system based on the RTP/RTCP protocols,analyses the quality of transmission between the sender and the receiver and dynamically adjust the protocols of compression according to the fluctuation of the bandwidth. Consequently the quality of video and audio sequence is guaranteed when they are transmitted over Internet.