【摘要】：視頻通信隨著網(wǎng)絡(luò)科技的不斷發(fā)展以及人們生活、工作的需求,已經(jīng)從最初的模擬視頻通信經(jīng)過(guò)第二代數(shù)字視頻通信,發(fā)展到現(xiàn)在的網(wǎng)絡(luò)數(shù)字視頻通信,而且從視頻采集、視頻編解碼以及數(shù)據(jù)傳輸?shù)燃夹g(shù)都日趨成熟。本論文基于國(guó)家第二代信源標(biāo)準(zhǔn)AVS,分別在達(dá)芬奇平臺(tái)和FPGA平臺(tái)設(shè)計(jì)實(shí)現(xiàn)了物聯(lián)網(wǎng)視頻傳感服務(wù)器；在Linux平臺(tái)研究開發(fā)設(shè)計(jì)了軟交換中間件系統(tǒng)；在不同平臺(tái)下設(shè)計(jì)了客戶端軟件；形成基于廣域網(wǎng)的物聯(lián)網(wǎng)視頻云系統(tǒng)。 AVS物聯(lián)網(wǎng)視頻云系統(tǒng)支持我國(guó)自主音視頻標(biāo)準(zhǔn)AVS,可實(shí)現(xiàn)對(duì)視頻信號(hào)的實(shí)時(shí)采集、編碼壓縮、網(wǎng)絡(luò)存儲(chǔ)、廣域網(wǎng)傳輸和解碼顯示；支持SIP做會(huì)話發(fā)起協(xié)議、RTP/RTSP做網(wǎng)絡(luò)實(shí)時(shí)傳輸和流傳輸協(xié)議,從而將AVS編碼器擴(kuò)展為物聯(lián)網(wǎng)上的AVS視頻傳感服務(wù)器；開發(fā)研制了軟交換中間件系統(tǒng),可在廣域網(wǎng)上的M個(gè)AVS視頻傳感服務(wù)器和N個(gè)客戶端之間,實(shí)現(xiàn)無(wú)阻塞的媒體流軟交換,其中,分布式中間件的設(shè)計(jì),實(shí)現(xiàn)了將M個(gè)AVS視頻傳感服務(wù)器現(xiàn)場(chǎng)獲取的歷史視頻數(shù)據(jù)紀(jì)錄存儲(chǔ)在網(wǎng)絡(luò)上,滿足用戶任何地點(diǎn)、任何時(shí)間隨意觀看來(lái)自M個(gè)AVS視頻傳感服務(wù)器獲取的實(shí)時(shí)視頻流和歷史視頻數(shù)據(jù)；設(shè)計(jì)配置了OpenSIPS開源服務(wù)器作為整個(gè)系統(tǒng)的SIP服務(wù)器,協(xié)助SIP穿透NAT網(wǎng)關(guān),穿越局域網(wǎng)限制,并且提供代理、注冊(cè)、認(rèn)證、計(jì)費(fèi)等功能；設(shè)計(jì)了Linux平臺(tái)多畫面顯示客戶端、Windows平臺(tái)多畫面顯示客戶端以及OMAP3530嵌入式客戶端,充分滿足了不同需求的用戶,形成物聯(lián)網(wǎng)視頻傳感服務(wù)云系統(tǒng)。該系統(tǒng)可廣泛應(yīng)用于博物館、大型商場(chǎng)、分布樓宇或交通卡口等場(chǎng)合的視頻監(jiān)控。
[Abstract]:With the continuous development of network technology and the demand of people's life and work, video communication has developed from the initial analog video communication through the second generation of digital video communication to the present network digital video communication, and from the video capture, Video coding and decoding and data transmission technology are increasingly mature. This paper designs and implements the Internet of things video sensor server on the platform of Da Vinci and the platform of FPGA based on the national second generation source standard AVS, and develops the softswitch middleware system on the platform of Linux. The client software is designed on different platforms and the Internet of things video cloud system based on WAN is formed. AVS Internet of things video cloud system supports our own audio and video standard AVS, can achieve real-time video signal acquisition, coding and compression, network storage, WAN transmission and decoding display; The AVS encoder is extended to the AVS video sensor server on the Internet of things by supporting the SIP session initiation protocol and the RTP/RTSP network real-time transmission and streaming protocol. A softswitch middleware system is developed, which can realize non-blocking media stream softswitch between M AVS video sensor servers and N clients in WAN. The record of historical video data obtained by M AVS video sensor server is stored on the network to satisfy any user. Viewing real-time video streams and historical video data from M AVS video sensor servers at any time; Design and configure OpenSIPS open source server as the SIP server of the whole system, assist SIP to penetrate the NAT gateway, traverse the limitation of LAN, and provide proxy, registration, authentication, billing and other functions. The multi-screen display client of Linux platform, the multi-screen display client of Windows platform and the embedded client of OMAP3530 are designed, which fully meet the different needs of users and form the Internet of things video sensing service cloud system. The system can be widely used in video surveillance of museums, shopping malls, distributed buildings or traffic bayonets.
【學(xué)位授予單位】：太原理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN919.8

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本文編號(hào)：2326871