本文選題：嵌入式系統(tǒng) + ZigBee��； 參考：《南京郵電大學》2013年碩士論文

【摘要】：近年來，隨著世界各國公共安全和環(huán)境問題日趨嚴峻，無線傳感網(wǎng)絡技術(shù)和視頻監(jiān)控技術(shù)在地鐵、機場、學校、醫(yī)院、企業(yè)和軍事設施等場所得到了廣泛的應用。為了滿足人們能夠方便的通過智能終端或者個人電腦隨時隨地查看遠程環(huán)境和場景信息的應用要求，本文將無線傳感網(wǎng)絡技術(shù)和音視頻監(jiān)控技術(shù)相結(jié)合，設計并實現(xiàn)了基于TMS320DM368的嵌入式多媒體傳感終端設備。 首先，根據(jù)傳感終端設備的功能和性能要求，將系統(tǒng)分為環(huán)境物理信息監(jiān)測與報警子系統(tǒng)、音視頻采集與播放子系統(tǒng)、多媒體數(shù)據(jù)處理與傳輸子系統(tǒng)，并在廣泛調(diào)研的基礎上，給出了基于TMS320DM368的嵌入式多媒體傳感終端設備的總體設計方案及各個子系統(tǒng)的詳細設計方案。 其次，設計并實現(xiàn)了環(huán)境物理信息監(jiān)測與報警子系統(tǒng)。該子系統(tǒng)從功能上分為基于ZigBee網(wǎng)絡的環(huán)境物理信息監(jiān)測模塊、基于TC37的異常報警模塊和基于MSP430F169單片機的控制模塊三個部分，分別給出了上述模塊的硬件電路設計和軟件實現(xiàn)。 第三，設計并實現(xiàn)了音視頻采集與播放子系統(tǒng)。建立了基于TMS320DM368嵌入式多媒體處理器的Linux開發(fā)環(huán)境，并對Linux內(nèi)核進行了合理的配置，完成了音視頻信息采集與播放單元的硬件電路設計，，同時編寫了音視頻數(shù)據(jù)采集的驅(qū)動程序及應用程序，完成了音視頻信息的采集與播放功能。 第四，實現(xiàn)了多媒體數(shù)據(jù)處理與傳輸子系統(tǒng)。實現(xiàn)了環(huán)境物理信息的數(shù)據(jù)格式轉(zhuǎn)換，完成了音視頻數(shù)據(jù)的壓縮編碼，并建立了基于Live555的數(shù)據(jù)碼流實時傳送模塊和基于Web服務器的實時傳輸模塊，完成了多媒體數(shù)據(jù)的無線發(fā)送和實時傳輸功能。 最后，本文對系統(tǒng)軟件和硬件進行了聯(lián)合測試，測試結(jié)果表明本系統(tǒng)可以很好地完成對環(huán)境信息的數(shù)據(jù)監(jiān)測和實時傳輸，且具有較好的可靠性、同步性和實時性，能夠滿足項目性能指標和用戶需求。
[Abstract]:In recent years, with the increasingly serious public safety and environmental problems around the world, wireless sensor network technology and video surveillance technology in subway, airport, schools, hospitals, enterprises and military facilities and other places have been widely used. In order to meet the application requirements of people viewing remote environment and scene information easily through intelligent terminal or personal computer, this paper combines wireless sensor network technology with audio and video monitoring technology. The embedded multimedia sensor terminal equipment based on TMS320DM368 is designed and implemented. First of all, according to the function and performance requirements of the sensor terminal, the system is divided into environmental physical information monitoring and alarm subsystem, audio and video acquisition and playback subsystem, multimedia data processing and transmission subsystem, and on the basis of extensive investigation. The overall design scheme of embedded multimedia sensor terminal equipment based on TMS320DM368 and the detailed design scheme of each subsystem are given. Secondly, the environmental physical information monitoring and alarm subsystem is designed and implemented. The subsystem is divided into three parts: the environment physical information monitoring module based on ZigBee network, the abnormal alarm module based on TC37 and the control module based on MSP430F169. The hardware circuit design and software implementation of the above modules are given respectively. Thirdly, the audio and video capture and play subsystem is designed and implemented. The Linux development environment based on TMS320DM368 embedded multimedia processor is established, the Linux kernel is configured reasonably, and the hardware circuit of audio and video information acquisition and playback unit is designed. At the same time, the driver and application of audio and video data acquisition are written, and the function of collecting and playing audio and video information is completed. Fourthly, the multimedia data processing and transmission subsystem is realized. The data format conversion of environmental physical information is realized, the compression and coding of audio and video data is completed, and the real time transmission module of data stream based on Live555 and the real time transmission module based on Web server are established. The functions of wireless transmission and real-time transmission of multimedia data are completed. Finally, the software and hardware of the system are tested in this paper. The test results show that the system can monitor and transmit the environmental information in real time, and it has good reliability, synchronization and real-time performance. Ability to meet project performance and user requirements.
【學位授予單位】：南京郵電大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TP368.1;TN919.8

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本文編號：2106658