Research And Implementation Of Multimedia Integrated Access Equipment Based On TD-SCDMA

TD-SCDMA technology is the3rd Generation mobile communication technologystandards of Chinese independent intellectual property rights, and can maximized guaranteethe strategic security of our country’s network. The country strongly supports TD networkconstruction and related technical research, and the development of TD network constructionwill drive the development of the TD-SCDAM standard communication terminal industry.This paper combined with the TD-SCDMA network technology of independent intellectualproperty rights, researches and designs access systems based on integration of TD networkand multimedia technology, which will extend the application of TD-SCDMA technology tothe field of coal, public security, petroleum, anti-theft alarm, etc.This paper presents a fusion of the TD network and multimedia technology networkapplication program, solves key technologies that involved by the project, such as theembedded multimedia system hardware platform design and RTP/RTCP networktransmission module software design, and develop a prototype of the embedded multimediaintegrated access system based on TD-SCDMA successfully. The system adoptedARM926EJS core micro processor I.MX27as the control unit, the LC63413G wirelesscommunication module supplemented with ethernet module as communication platform.System designed the streaming media server module based on RTP/RTCP and RTSPstreaming media transmission control protocol, and the POTS voice interaction interfacemodule based on the TD network and PSTN network, and it integrated voice call, videocapture,video server, TD-SCDMA and ethernet access functions generally.The thesis mainly describes the system hardware platform design principle and concreteimplementation method, and gives the RTP/RTCP protocol-based video network transmissionmodule design scheme, then it proposes testing method and tests hardware platform and system function, finally, it introduces several feasible networking schemes and verified them.System test results proves that the embedded multimedia integrated access system based onTD-SCDMA network can achieve all expected functions correctly and reliably both indoorand in the open air.