MPEG4网络视频服务器在煤矿监控系统中的应用

:100320794(2005)0320120203MPEG41,2(1.,232001;2.,351111):MPEG4MPEG4,,:;;;:TN916:A1,,,,,,,,1,,,,MPEG4(Lay2er),,,,,,ASICMPEG42/SAA7114;,,;,LAN,,,,,,,,11Fig.1Videoservicerhardware2.1SAA7114PHILIPSSAA7114,,ADC,clamp,,/,,SAA71144:2:24:2:04:1:14:1:0,A/D9bit6,6CVBS2Y/C2CVBS1Y/C4CVBS;,;50Hz/60Hz,PALNTSC;PALNTSCSECAMITU-601/ITU-656,I2C,,02120053©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(PIN20)BNC/RCA,AI12AI22S-VIDEOImagePort2.2IME6400IME6400INTIME//,MPEG4/2/1//MPEG472048030fps72057625fps,DSP4IME6400,8MSDRAM,,,IME64002,4:AUDIOVIDEOSDRAMHOST2IME6400Fig.2IME6400interiorchartAUDIO,I2S,16bit,,I2S/IME6400,,,VIDEOCCIR-60116bit20482048,16IME64004:2:2IME6400,SDRAM,2GbitsIME6400,,256MbitSDRAMIME6400,FI2FOIME6400IME6400IME6400,SA1110IME6400IME640016bits,SA1110AsynchronousSin2gleIME6400IME6400,3V,,3V,MPEG4,,,ITU601,SAA7114ITU656,,FPGA2.3FPGAXilinxSPARTAN2XC2S200,:20,200MHz,SRAM,ITU656ITU601MPEG43ITU6568bit,,ITU656,ITU60116bit,,ITU656ITU601ITU656,,16bitITU601,3ITU656ITU601Fig.3TransitionfromITU656toITU60112120053MPEG4,©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(SPI)USB28I/OPCMCIA16KBCACHE8KB44SA1110Fig.4SA1110processorinteriorchartSA1110,SA1110CPU:(1)CS0:FLASH;CS1:;CS2:;CS3:Ethernet(LAN91C111);CS4:(IME6400);CS5:IDE;nSDCS0:SDRAM;nSDCS1:;nSDCS2:(2)GP0:LAN(LAN91C111);GP1:IME6400;GP4:IDE;GP10:(3)SerialChannel0:;SerialChannel1:RS485;SerialChannel2:;SerialChannel3:RS232,;SerialChannel4:2.5Internet,,SmscLAN91C111,7MAC,10/100M/,RS232RS485,232,485,,,,3MPEG4,,MPEG4,:[1],,,.MPEG[M].:,2002.:(1978-),,,,,,.Tel:[phone].:2004211202DesignandRealizationofNetworkVideoServicerBasedonMPEG4inModernMineHELing-ling1,LINZhi-qiang2(1.AnhuiUniversityofScienceandTechnology,Huainan232001,China;2.FujianXuejinBeerLtd.,Co.,PackagingBranchPlant,Putian351111,China)Abstract:Remotevideomonitorsystemisaimportantpartofsafeproductionmonitorsysteminmodernmine.Inthispa2per,thedesignandrealizationofnetworkvideoservicerbasedonMPEG4areintroduced.Theequipmentrealizesreal-timecodedconcentrationofvideo,andthenetworktransmissionfunctionofconcentratedvideostreambymeansofem2beddedoperatingsystem,accordingwiththedevelopmentandapplicationofmodernvideomonitortechnology.Keywords:videomonitorofmine;networkvideoservicer;videocoded;network(),,,,CAT,,13200600kW,,221MPEG4,20053©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.