【摘要】：視頻監(jiān)控被廣泛地應(yīng)用于國民生活和工業(yè)生產(chǎn)的各行各業(yè)。隨著經(jīng)濟水平的增長和科技研發(fā)的進步，視頻監(jiān)控呈現(xiàn)數(shù)字化、高清化、網(wǎng)絡(luò)化、智能化的發(fā)展方向。高帶寬、低延時的3G和4G移動通信網(wǎng)絡(luò)以及不斷改善的互聯(lián)網(wǎng)環(huán)境為新的發(fā)展趨勢提供了契機。近年來推出的標準化安防接口ONVIF協(xié)議，為改善眾多不同品牌產(chǎn)品私有協(xié)議的互聯(lián)互通性能，提供了切實有效的途徑。 本文首先從高清網(wǎng)絡(luò)攝像機IPC（IP Camera）系統(tǒng)的需求分析出發(fā)，研究了硬件選用的方案和軟件系統(tǒng)的架構(gòu)。系統(tǒng)采用具有硬件編解碼功能的海思Hi3518A芯片作為核心處理器，搭配快速讀寫的DDR3內(nèi)存和符合工業(yè)標準的網(wǎng)卡。在充分研究Hi3518A芯片結(jié)構(gòu)和功能的基礎(chǔ)上，搭建了系統(tǒng)的運行平臺HiLinux、根文件系統(tǒng)并開發(fā)了應(yīng)用層軟件。本文采用C/S和B/S兩種模式，，設(shè)計了應(yīng)用層軟件IPCAM主架構(gòu)，并研發(fā)了各個功能模塊。視頻壓縮編碼采用芯片的H.264硬件編解碼功能；借助多線程讀寫鎖的功能，開發(fā)了用于保存視頻流的視頻緩沖池；Web服務(wù)采用本文設(shè)計的支持多平臺協(xié)議的動態(tài)服務(wù)器；網(wǎng)絡(luò)視頻點播由RTSP流媒體服務(wù)器提供；對ONVIF協(xié)議進行深入研究，借助gSOAP工具高效地開發(fā)ONVIF框架，實現(xiàn)網(wǎng)絡(luò)攝像機所必須支持的ONVIF服務(wù)接口，并將其應(yīng)用在系統(tǒng)架構(gòu)中。由IPCAM完成對各個模塊的初始化工作，并協(xié)調(diào)模塊之間的業(yè)務(wù)調(diào)度。應(yīng)用層軟件主要提供Web訪問界面友好、視頻顯示與傳輸、移動偵測、郵件報警、系統(tǒng)設(shè)置、互聯(lián)互通等功能。 本系統(tǒng)于2013年底進入測試階段，測試結(jié)果表明本系統(tǒng)功能完善、穩(wěn)定性好，與其它廠商產(chǎn)品互聯(lián)互通，達到了高清化、網(wǎng)絡(luò)化、即插即用的設(shè)計目的。
[Abstract]:Video surveillance is widely used in Yu Guomin life and industrial production of various industries. With the growth of economic level and the development of science and technology, video surveillance is becoming more and more digital, high-definition, networked and intelligent. The 3G and 4G mobile communication networks with high bandwidth and low delay, as well as the improving Internet environment, provide the opportunity for the new development trend. In recent years, the standardized security interface (ONVIF) protocol has been introduced, which provides a practical and effective way to improve the interconnection performance of private protocols for many different brands. Based on the requirement analysis of IPC (IP Camera) system, this paper studies the hardware selection scheme and the architecture of the software system. The system adopts Heath Hi3518A chip with hardware coding and decoding function as the core processor, and matches the fast reading and writing DDR3 memory and the network card that conforms to the industry standard. Based on the research of the structure and function of Hi3518A chip, the HiLinux, root file system is built and the application layer software is developed. In this paper, the application layer software IPCAM architecture is designed by using two modes, C / S and B / S, and each functional module is developed. The video compression coding adopts the H.264 hardware codec function of the chip, the multi-thread read-write lock is used to develop the video buffer pool Web service for saving video stream, and the dynamic server supporting multi-platform protocol is designed in this paper. The network video on demand is provided by RTSP streaming media server, the ONVIF protocol is deeply studied, the ONVIF framework is developed efficiently with the help of gSOAP tools, the ONVIF service interface which must be supported by the network camera is realized, and it is applied in the system architecture. IPCAM completes the initialization of each module and coordinates the business scheduling between the modules. Application layer software mainly provides Web access interface friendly, video display and transmission, mobile detection, email alarm, system setting, interconnection and other functions. The system entered the testing stage at the end of 2013. The test results show that the system has perfect function, good stability, interconnection with other manufacturers, and achieves the design purpose of high definition, networking, plug and play.
【學(xué)位授予單位】：暨南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN948.41

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