【正文】 I 基于視頻技術(shù)的安全防衛(wèi)系統(tǒng)的設計 摘 要 隨著現(xiàn)代電子技術(shù)的發(fā)展， 視頻 監(jiān)控系統(tǒng)也逐步由模擬走向數(shù)字化。視頻監(jiān)控系統(tǒng)是安防領域中的重要組成部分，是所有安全系統(tǒng)中最關(guān)鍵的子系統(tǒng)。系統(tǒng)通過遙控攝像機，直接觀察被監(jiān)視場所的情況，同時可以把被監(jiān)視場所的情況進行同步錄像。另外，視頻監(jiān)控系統(tǒng)還可以與防盜報警系統(tǒng)等其它安全技術(shù)防范體系聯(lián)動運行，使用戶安全防范能力得到整體的提高。 視頻 監(jiān)控系統(tǒng)能在人無法直接觀察的場合，適時、清晰、真實地反映被監(jiān)視控制對象的畫面。 視頻 監(jiān)控系統(tǒng)已成為在現(xiàn)代化管理中監(jiān)控的最為有效的觀察 工具。 視頻監(jiān)控系統(tǒng)是一種全數(shù)字化、全網(wǎng)絡化的系統(tǒng)，可以同現(xiàn)有的多媒體系統(tǒng)、控制系統(tǒng)和信息系統(tǒng)集成，方便地實現(xiàn)數(shù)據(jù)和信息的共享 在控制中心，只要有一個工作人員操作，就能夠觀察多個被控區(qū)域，以及遠距離區(qū)域的監(jiān)控功能。 視頻監(jiān)控系統(tǒng)由實時控制系統(tǒng)、監(jiān)視系統(tǒng)及管理信息系統(tǒng)組成 。 實時控制系統(tǒng)完成實時數(shù)據(jù)采集處理、存儲、反饋的功能；監(jiān)視系統(tǒng)完成對各個監(jiān)控點的全天候的監(jiān)視，能在多操作控制點上切換多路圖像；管理信息系統(tǒng)完成各類所需信息的采集、接收、傳輸、加工、處理，是整個系統(tǒng)的控制核心。 本文最后通過對一例校園監(jiān)控系統(tǒng)構(gòu)建 的簡單介紹 ,說明智能監(jiān)控系統(tǒng)在實際中的應用 ,及其所帶來的高效快捷的報警聯(lián)動 ,讓警衛(wèi)人員可以對突發(fā)事件進行有效及時的處理。 關(guān)鍵詞： 視頻監(jiān)控 ， 采集 ， 處理，傳輸 II How to Design the Security Defense System Based on Video Technology Abstract Along with the technical development of modern electronics, the video frequency supervision system also gradually from imitate the alignment numeral to video frequency supervision system is Anne to defend the importance in the realm to constitute the part, is in all safe systems most the subsystem of the system passes the remote control camera, the direct observation is keep watch on the amenity circumstance, at the same time can is keep watch on the amenity circumstance carries on recording the elephant , the video frequency supervision system can also with guard against theft to report to the police the system etc. other safe techniques guard against the system to move the movement, using a safety to guard against the ability to get the whole exaltation. The video frequency supervision system ability at the situation that person can39。t observe directly, well timed, portrait, really reflect to be keep watch on appearance of control the video frequency supervision system has bee the most valid observation tool supervise and control in modern video frequency supervision system is a kind of total amount word turn, the whole work turn of system, can the together existing multimedia system, the control system and the information systems gather, carrying out the share of the data and information in the control centre expediently, the operation of only a staff member, can observe manies to is control district, and longdistance leave the supervision function of the district. Video frequency supervision system from solid the hour controls the system, surveillance system and management the information system constitute. The solid hour controls the data for system to plete solid to collect the processing, saving, the function of the feedback,keep watch on the system pletes the allweather surveillance that orders to the each supervision, the ability is operating control point more up cut over many road pictures,Manage the information system pletes each kind of to need the information to collect, receive, transmit, process, handle, is the whole control core of system. his culminated in the adoption of a campus monitor system is a brief, describes the application of intelligent monitor and control system in practice, and the fast and efficient alarm linkage, allowing security personnel to effective and timely handling of unexpected events. III Keywords: video supervision system， collecting， handle， transmit IV 目 錄 摘要 ..................................................................... I Abstract.................................................................. II 1 緒論 ................................................................... 1 選題背景 .......................................................... 1 視頻監(jiān)控系統(tǒng)發(fā)展歷程 .............................................. 1 視頻監(jiān)控系統(tǒng)發(fā)展方向 .............................................. 2 本文所研究的問題及解決的思路 ...................................... 3 2 系統(tǒng)設計原則 ........................................................... 4 3 系統(tǒng)的構(gòu)成及原理 ....................................................... 6 視頻監(jiān)控系統(tǒng)的構(gòu)成及原理 .......................................... 6 前端部分 ..................................................... 6 傳輸部分 ..................................................... 8 控制部分 ..................................................... 9 終端（ 顯示與記錄） ...........................................11 周界報警系統(tǒng)的構(gòu)成及原理 ..........................................11 電子巡查系統(tǒng)的構(gòu)成及原理 ......................................... 12 4 模擬監(jiān)控與數(shù)字監(jiān)控 .................................................... 14 模擬監(jiān)控系統(tǒng) ..................................................... 14 數(shù)字監(jiān)控系統(tǒng) ..................................................... 14 模擬監(jiān)控與數(shù)字監(jiān)控對照表 ......................................... 15 模擬監(jiān)控與數(shù)字監(jiān)控的成本對比 ..................................... 16 5 淺談校園監(jiān)控系統(tǒng)的建設 ................................................ 17 需求分析 ......................................................... 18 系統(tǒng)設計 ......................................................... 18 工作原理 .................................................... 19 施工工藝 .................................................... 21 6 視頻監(jiān)控常見的三大問題附解決方案 .............................................................................. 23 視頻監(jiān)控傳輸數(shù)據(jù)量巨大網(wǎng)絡帶寬資源不足 ........................... 23 視頻監(jiān)控的海量儲存 ............................................... 23 視頻監(jiān)控系統(tǒng)的智能化應用 ......................................... 25 7 心得體會 .............................................................. 26 致 謝 ................................................................... 27 參考文獻 ................................................................ 28 基于視頻技術(shù)的安全防衛(wèi)系統(tǒng)的設計 1 1 緒論 選題背景 圖像視覺信息是人類從客觀世 界獲得信息的主要來源之一，而視頻圖像實際上就是一系列連續(xù)的靜態(tài)圖像，它是對客觀事物形象生動的描述，是一種直觀且具體的信息表達形式。隨著網(wǎng)絡、通信和微電子等技術(shù)的快速發(fā)展和人們物質(zhì)生活水平的提高，視頻監(jiān)控以其直觀、方便和內(nèi)容豐富等特點，越來越受到人們的重視。同時，對人身財產(chǎn)安全要求的不斷提高，促進了人們對監(jiān)控系統(tǒng)的需求。過去對一些重要地點的監(jiān)控是由人的看管來完成，而在現(xiàn)代社會，需要監(jiān)控的地點越來越多，對監(jiān)控的要求也越來越高，不僅僅是為了保護財產(chǎn)，還為了保護機密材