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1、Application&projectofvideotechnologies文章編號(hào):1002-8692(2007)02-0081-04基于PCI總線的視頻監(jiān)控系統(tǒng)設(shè)計(jì)·實(shí)用設(shè)計(jì)·廖軍,周鄂林,管慶(電子科技大學(xué)-美國德州儀器DSPs技術(shù)中心,四川成都610054)【摘要】介紹了一種基于TITMS320DM642的PCI總線的視頻監(jiān)控系統(tǒng)的設(shè)計(jì)和實(shí)現(xiàn),它可實(shí)時(shí)處理兩路模擬攝像機(jī)數(shù)據(jù)或兩路IP攝像機(jī)數(shù)據(jù),對(duì)系統(tǒng)軟硬件構(gòu)成進(jìn)行了分析,在TI的IOM硬件驅(qū)動(dòng)模型上用RF5架構(gòu)進(jìn)行了系統(tǒng)任務(wù)調(diào)度,試驗(yàn)結(jié)果表明該系統(tǒng)能實(shí)時(shí)對(duì)多路圖像數(shù)
2、據(jù)運(yùn)行監(jiān)控算法,并將監(jiān)控結(jié)果通過PCI總線傳送給主機(jī),可方便完成本地存儲(chǔ)和遠(yuǎn)程監(jiān)控,為各種視頻監(jiān)控算法提供了有效的軟硬件平臺(tái)?！娟P(guān)鍵詞】TMS320DM642芯片;PCI總線;CIF圖像;IP攝像機(jī);遠(yuǎn)程監(jiān)控;IOM驅(qū)動(dòng)模型【中圖分類號(hào)】TP277【文獻(xiàn)標(biāo)識(shí)碼】BDesignofPCIVideoMonitoringSystemBasedonTMS320DM642LIAOJun,ZHOUE-lin,GUANQing(UESTC-TexasInstrumentsDSPsTechnologyCenter,SichuanChengd
3、u610054,China)【Abstract】ThedesignandimplementofPCIvideomonitoringsystembasedonTI′sTMS320DM642isintroduced,whichcanpro-cesstwo-channelanalogcameraortwo-channelIPcameravideostream.Theimplementationofthecoresystemmodulesisdis-cussed,includingtaskschedulebasedonTI′sRF5
4、frameworkandIOMmini-driver.Theexperimentresultsindicatethatthissys-temcanprocessmonitoringalgorithmformultiplexvideostreamandtransfermonitoringresultstothehostthroughPCIbusinrealtime.Itisconvenientforusertocompletethefunctionsoflocal-storageandremotemonitoring,andp
5、rovidesuseraneffectivesoftwareandhardwareplatformforvideomonitoringalgorithm.【Keywords】TMS320DM642;PCIbus;CIFimage;IPCamera;remotemonitoring;IOM1引言網(wǎng)絡(luò)攝像機(jī)模擬攝像機(jī)TCP/IP網(wǎng)絡(luò)近幾年來,視頻監(jiān)控系統(tǒng)的發(fā)展出現(xiàn)了以下趨勢:從模擬監(jiān)控轉(zhuǎn)向數(shù)字監(jiān)控;從落后的現(xiàn)場監(jiān)控轉(zhuǎn)向先進(jìn)的遠(yuǎn)PC機(jī)網(wǎng)卡視頻視頻MCU程監(jiān)控;從有人值守監(jiān)控轉(zhuǎn)向無人值守監(jiān)控。PC解碼器0解碼器1端軟件AXISPan
6、asonic解碼本文介紹的基于TITMS320DM642(以下簡稱DM642)SDKSDKSDRANPCIVP0VP1I2CPCI總線的視頻監(jiān)控系統(tǒng)可同時(shí)滿足數(shù)字監(jiān)控、遠(yuǎn)程監(jiān)PCI圖像傳輸傳輸隊(duì)列PCI網(wǎng)絡(luò)攝像機(jī)管理API控和無人值守監(jiān)控的要求,并能在該平臺(tái)上靈活移植各總DM642監(jiān)控算法軟件開發(fā)套件線FLASH傳感器種視頻監(jiān)控算法。PCIEMIF警報(bào)控制臺(tái)規(guī)則RTC/2系統(tǒng)結(jié)構(gòu)設(shè)計(jì)管理工具監(jiān)控服務(wù)器PCI監(jiān)控卡WatchDog2.1系統(tǒng)設(shè)計(jì)目標(biāo)圖1系統(tǒng)結(jié)構(gòu)框圖以TI高性能圖像處理芯片TMS320DM642為核心,搭建了視頻
7、監(jiān)控硬件平臺(tái)并完成驅(qū)動(dòng)開發(fā),還搭建了基塊、模擬攝像機(jī)模塊和IP攝像機(jī)模塊。于TIRF5參考框架的DSP軟件平臺(tái)。系統(tǒng)能同時(shí)采集1)DM642模塊兩路分辨率為PALD1∶720×576/25f/s的視頻流(模擬或運(yùn)行視頻監(jiān)控算法,與外圍設(shè)備通信。網(wǎng)絡(luò)攝像頭均可),并能對(duì)采集的圖像數(shù)據(jù)運(yùn)用監(jiān)控算法2)監(jiān)控算法控制臺(tái)模塊進(jìn)行實(shí)時(shí)處理。視頻監(jiān)控板卡作為計(jì)算機(jī)的PCI設(shè)備,通位于PC機(jī)端,包括規(guī)則管理工具和警報(bào)控制臺(tái)兩過PCI接口同計(jì)算機(jī)完成控制、數(shù)據(jù)等信息交換。個(gè)子模塊。規(guī)則管理工具設(shè)定安全規(guī)則,并將用戶設(shè)定的2.2系統(tǒng)設(shè)計(jì)特點(diǎn)安全
8、規(guī)則作為參數(shù)由PCI總線傳遞給DM642中的監(jiān)控系統(tǒng)結(jié)構(gòu)框圖如圖1所示。算法;警報(bào)控制臺(tái)顯示從DM642中傳過來的違背安全規(guī)整個(gè)監(jiān)控系統(tǒng)分為DM642模塊、監(jiān)控算法控制臺(tái)模則的圖像警報(bào)并存儲(chǔ)。No.2Vol.312007(SumNo.298)VIDEOENGINEERING81視頻技術(shù)應(yīng)用
