【摘要】：隨著我國經(jīng)濟(jì)和公共交通運(yùn)輸事業(yè)的高速發(fā)展，交通運(yùn)輸安全越來越受到國家相關(guān)部門的重視。據(jù)權(quán)威部門統(tǒng)計，2013年底我國汽車保有量達(dá)1.37億輛，數(shù)十萬人直接或間接死于交通事故，給車輛管理和交通運(yùn)輸安全帶來了巨大的壓力和考驗。傳統(tǒng)的諸如人工巡檢、有線視頻監(jiān)控等管理方式已經(jīng)落后，不能滿足相關(guān)部門對車況、路況、運(yùn)營情況等信息及時掌控的要求。因此，本文提出了一種集移動互聯(lián)網(wǎng)技術(shù)、3G技術(shù)、視頻壓縮技術(shù)、多媒體技術(shù)等技術(shù)于一體的，旨在方便車輛管理和保障交通運(yùn)輸安全的解決方案——基于Android的遠(yuǎn)程車載視頻監(jiān)控系統(tǒng)設(shè)計。本系統(tǒng)采用C/S架構(gòu)方式，秉承模塊化、服務(wù)分組、負(fù)載均衡的設(shè)計理念，實(shí)現(xiàn)了用戶管理、實(shí)時視頻監(jiān)控、錄像回放與下載、報警服務(wù)和配置管理等功能，達(dá)到了車輛高效管理和監(jiān)控的目的，提高了車輛運(yùn)輸?shù)陌踩�，能夠滿足不同用戶不同場合的使用要求。 論文的研究內(nèi)容主要體現(xiàn)在如下幾個方面：其一，首先對國內(nèi)外視頻監(jiān)控系統(tǒng)的發(fā)展現(xiàn)狀和發(fā)展趨勢進(jìn)行了深入的理論研究，，提出了基于3G／H.264／Android/網(wǎng)絡(luò)傳輸?shù)燃夹g(shù)的遠(yuǎn)程車輛視頻監(jiān)控系統(tǒng)設(shè)計方案，將3G網(wǎng)絡(luò)和發(fā)展前景廣闊的車載視頻監(jiān)控產(chǎn)業(yè)緊密聯(lián)系起來，使用戶能夠隨時、隨地使用個人Android系統(tǒng)終端進(jìn)行實(shí)時高效地監(jiān)控。其二，對系統(tǒng)所涉及的核心技術(shù)進(jìn)行了深入的理論研究，包括H.264編碼標(biāo)準(zhǔn)、Android平臺系統(tǒng)、JNI交叉編譯技術(shù)，以及TCP、UDP、RTP、RTCP等網(wǎng)絡(luò)傳輸協(xié)議，驗證了方案的技術(shù)可行性。其三，根據(jù)系統(tǒng)的設(shè)計要求和性能指標(biāo)，進(jìn)行了系統(tǒng)的總體方案設(shè)計，包括前端車載設(shè)備、中心服務(wù)集群、Android客戶端和業(yè)務(wù)通信協(xié)議等幾部分，在此基礎(chǔ)上進(jìn)行了中心服務(wù)集群的詳細(xì)設(shè)計，包括負(fù)載均衡服務(wù)、用戶管理服務(wù)、設(shè)備管理服務(wù)、流媒體轉(zhuǎn)發(fā)服務(wù)、錄像離線下載服務(wù)、報警分析服務(wù)和數(shù)據(jù)庫管理服務(wù)，從而實(shí)現(xiàn)了系統(tǒng)的后臺支撐。其四，通過對系統(tǒng)的功能和性能進(jìn)行整體評估，對系統(tǒng)的功能指標(biāo)和性能指標(biāo)進(jìn)行了驗證。在本系統(tǒng)中，采用RTP和RTCP協(xié)議傳輸經(jīng)過H.264壓縮編碼的音視頻數(shù)據(jù)，保證了視頻的實(shí)時性和流暢性，采用服務(wù)分組和負(fù)載均衡技術(shù)提高了服務(wù)負(fù)載能力、資源的合理分配使用和系統(tǒng)的可靠性，通過移植開源編解碼庫FFmpeg到Android系統(tǒng)中，提高了編解碼模塊的編解碼效率和擴(kuò)展性。 通過對車載視頻監(jiān)控系統(tǒng)進(jìn)行系統(tǒng)的整體性能測試和分析，測試結(jié)果表明基于Android的遠(yuǎn)程車載視頻監(jiān)控系統(tǒng)達(dá)到了預(yù)期的設(shè)計目的，系統(tǒng)具備較強(qiáng)的穩(wěn)定性、靈活性和擴(kuò)展性，其性能能夠滿足交通運(yùn)輸行業(yè)的監(jiān)控需求，具有巨大的深入研究價值和廣闊的應(yīng)用前景。
[Abstract]:With the rapid development of economy and public transport in China, transportation safety has been paid more and more attention by the relevant departments of the state. According to the statistics of authoritative departments, the number of cars in China reached 137 million at the end of 2013, and hundreds of thousands of people died directly or indirectly in traffic accidents, which brought great pressure and test to vehicle management and transportation safety. The traditional management methods, such as manual inspection, cable video surveillance and so on, have lagged behind, which can not meet the requirements of relevant departments for timely control of traffic conditions, road conditions, operation and other information. Therefore, this paper proposes a kind of technology which integrates mobile Internet technology, 3G technology, video compression technology, multimedia technology and so on. The design of remote vehicle video surveillance system based on Android is a solution to facilitate vehicle management and ensure traffic safety. The system adopts C / S architecture, adheres to the design concept of modularization, service grouping and load balancing, and realizes the functions of user management, real-time video monitoring, video playback and download, alarm service and configuration management. It achieves the purpose of efficient management and monitoring of vehicles, improves the safety of vehicle transportation, and can meet the requirements of different users on different occasions. The research content of this paper is mainly reflected in the following aspects: first, the development status and development trend of video surveillance system at home and abroad are deeply studied theoretically. A design scheme of remote vehicle video surveillance system based on 3G/H.264/Android/ network transmission technology is put forward, which closely links 3G network with vehicle video surveillance industry with broad development prospects, so that users can be able to do so at any time. Use personal Android system terminals anywhere for real-time and efficient monitoring. Secondly, the core technologies involved in the system are deeply studied theoretically, including H.264 coding standard, Android platform system, JNI cross-compilation technology, TCP,UDP,RTP,RTCP and other network transmission protocols. The technical feasibility of the scheme is verified. Thirdly, according to the design requirements and performance index of the system, the overall scheme design of the system is carried out, including front-end vehicle equipment, central service cluster, Android client and service communication protocol and so on. On this basis, the detailed design of the central service cluster is carried out, including load balancing service, user management service, equipment management service, streaming media forwarding service, video offline download service, alarm analysis service and database management service. Thus, the background support of the system is realized. Fourth, through the overall evaluation of the function and performance of the system, the functional index and performance index of the system are verified. In this system, RTP and RTCP protocols are used to transmit H.264 compressed and encoded audio and video data, which ensures the real-time and fluency of video, and improves the service load capacity by using service packet and load balancing technology. The reasonable allocation of resources and the reliability of the system improve the coding and decoding efficiency and expansibility of the coding and decoding module by transplanting the open source coding and decoding library FFmpeg to the Android system. Through the overall performance test and analysis of the vehicle video surveillance system, the test results show that the remote vehicle video surveillance system based on Android achieves the expected design purpose, and the system has strong stability, flexibility and expansibility. Its performance can meet the monitoring needs of the transportation industry, and has great in-depth research value and broad application prospects.
【學(xué)位授予單位】：成都理工大學(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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