本文選題：視頻監(jiān)控　切入點：AVS　出處：《太原理工大學(xué)》2014年碩士論文

【摘要】：隨著社會的發(fā)展,人們越來越依賴視頻監(jiān)控系統(tǒng),許多公共場所,如校園、政府部門、企業(yè)等都安裝了視頻監(jiān)控系統(tǒng)。網(wǎng)絡(luò)技術(shù)、圖像處理方法和壓縮技術(shù)、嵌入式技術(shù)的飛速發(fā)展,給網(wǎng)絡(luò)視頻監(jiān)控系統(tǒng)安上了騰飛的翅膀。網(wǎng)絡(luò)視頻監(jiān)控系統(tǒng)的出現(xiàn)不但增加了監(jiān)控的范圍,而且大大減少了人為的干預(yù),逐漸發(fā)展成了物物相連的物聯(lián)網(wǎng)系統(tǒng)。 本文對物聯(lián)網(wǎng)視頻監(jiān)控系統(tǒng)的關(guān)鍵部分提出了設(shè)計方案,并通過了實驗驗證,主要包括視頻傳感服務(wù)器、嵌入式客戶端、存儲服務(wù)器等三個部分。整個監(jiān)控系統(tǒng)采用的視頻壓縮標準是具有國家自主知識產(chǎn)權(quán)的AVS標準；利用SIP來建立和管理會話,連接整個系統(tǒng)；通過RTP完成碼流的打包、發(fā)送和解包。 視頻傳感服務(wù)器基于TMS20DM6446平臺,完成圖像信息的采集、壓縮編碼和發(fā)送,它是一種“瘦服務(wù)器”,克服了傳統(tǒng)視頻傳感器只能被動提供數(shù)據(jù)服務(wù)的缺點,它可以區(qū)分不同的請求,然后有選擇的主動提供數(shù)據(jù)發(fā)送服務(wù),并且將采集的數(shù)據(jù)按照AVS標準進行壓縮編碼；嵌入式客戶端采用OMAP3530平臺,將實驗室自主優(yōu)化的AVS解碼器移植到該平臺上,客戶端主動的向視頻傳感服務(wù)器或存儲服務(wù)器發(fā)送數(shù)據(jù)請求,完成碼流的接收、解碼和顯示工作；存儲服務(wù)器基于流媒體中間件的思想,在實現(xiàn)多路數(shù)據(jù)接收存儲的基礎(chǔ)上,可以接收客戶端多種數(shù)據(jù)請求并提供數(shù)據(jù)服務(wù),主要包括：不同客戶端的對不同的碼流文件的數(shù)據(jù)請求、不同客戶端對同一碼流文件的數(shù)據(jù)請求、同一客戶端對不同碼流文件的數(shù)據(jù)請求等。
[Abstract]:With the development of society, people rely more and more on video surveillance system. Many public places, such as campus, government departments, enterprises and so on, have installed video surveillance system. With the rapid development of embedded technology, the network video surveillance system has taken off. The appearance of the network video surveillance system not only increases the scope of monitoring, but also greatly reduces the artificial intervention. It has gradually developed into a connected internet of things system. In this paper, the key parts of the Internet of things video surveillance system are proposed and verified by experiments, mainly including video sensor server, embedded client, The video compression standard used in the whole monitoring system is the AVS standard with national independent intellectual property rights; the SIP is used to establish and manage the session and connect the whole system; the package of the code stream is completed through RTP. Send the reconciliation package. Video sensor server is based on TMS20DM6446 platform to complete image information collection, compression, coding and transmission. It is a "thin server", which overcomes the shortcoming that traditional video sensor can only passively provide data service, and it can distinguish different requests. Then the selected data sending service is provided, and the collected data is compressed and coded according to the AVS standard. The embedded client adopts OMAP3530 platform to transplant the self-optimized AVS decoder to the platform. The client sends the data request to the video sensor server or storage server to receive, decode and display the code stream. The storage server is based on the idea of streaming media middleware, and realizes the multi-channel data receiving and storage. It can receive a variety of data requests from clients and provide data services, including: data requests from different clients for different bitstream files, data requests from different clients for the same bitstream files, The data request of the same client to different bitstream files, etc.
【學(xué)位授予單位】：太原理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN948.6

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