基于CDMA1x的低码率视频监控系统的研究实现.pdf

Research and Realization Digital Video monitor system based on CDMAlx access Abstract Digital Video monitor system had been used popularly fields of electric power、munications、traffic and finance,playing so important rolessuch雒 environment monitor、security ofindustry。Digital Video monitor system have many paring with analog monitor system。with the development of the technology fields mobile nmnications and video coding/decoding,it a trend thatthe monitor technology integrating with wireless aecess work technology。 system can bemore extensive、mobile、and adaptive。 China Unicorn has been providing and spreading aservice一“Broadband palm”that bring USerS by wireless access。In fact,the realbandwidth ofCDMA x wireless access about 90kbps downlink and 60kbps uplink。To take advantage ofCDMA xtechnology,it necessary there are more 1CP( Content Provider)provide more services based offCDMA x。Our project can give plete application design and detail realization about video monitor system based 011 based on CDMAlx access with low bit rate video transmission。There two ways transmit video through CDMA x,the one video playing on themobile terminal with Stream Media,the other ofle video transmission through CDMAlx wireless access intoIntemet。This projeel pay more attention the bining CDMA x access、embedded technology、video coding/decoding work connnunications technology,we provide acomplete application design about Digital Video monitor system based on CDMAlx access with low bit thispaper,firstly,1 willmake analysis ofthe CDMAIx、embedded technology and video coding and decoding technology。 Secondly,I focus on the details ofdesign and implement that includes serial munications,PPP munications based on Socket,etc. 2 Finally,1 willdiscuss the ess and failure about thisproject andgive some suggests ofimprovements. Kev Words:Video Monitor、Embedded PSoS、PPP、+、CDMAIx 独创性(或创新性)声明本人声明所‘f交的论文是木人任导ljlli-Jh'导r进行的研究i‘作及取得的研究成果。尽我所知,