ï»?!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 监控设备系统的å‘å±?/title> </head> <body class="single"> <script language="JavaScript" type="text/javascript"> var str00="http://www.bjzdsw.com.cn/dweb/"; var str01="å称或邮箱ä¸èƒ½ä¸ºç©?; var str02="å称或邮箱格å¼ä¸å¯?; var str03="留言ä¸èƒ½ä¸ºç©ºæˆ–过é•?; var str06="显示UBB表情>>"; var intMaxLen="1000"; var strFaceName="Haha|Hehe|Love|Misdoubt|Music|Nothing_to_say|Sad|Shame|Sleep|Smile|Stop|What|Adore|After_boom|Angry|Cool|Cry|Effort|Faint|Grimace"; var strFaceSize="48"; var strBatchView=""; var strBatchInculde=""; var strBatchCount=""; </script> <div id="divAll"> <div id="divPage"> <div id="divMiddle"> <div id="divTop"> <h1 id="BlogTitle"><a href="http://www.bjzdsw.com.cn/dweb/"></a></h1> <h2 id="BlogSubTitle"></h2> </div> <div id="divNavBar"> <h3>导航</h3> <ul> <li><a href="http://www.bjzdsw.com.cn/dweb/">Index</a></li> <li><a href="http://www.bjzdsw.com.cn/dweb/search.asp">Search</a></li> <li><a href="http://www.bjzdsw.com.cn/dweb/tags.asp">TagCloud</a></li> <li><a href="http://www.bjzdsw.com.cn/dweb/cmd.asp?act=login">Admin</a></li> </ul> </div> <div id="divMain"> <div class="post cate1 auth15"> <div class="post-nav"><a class="l" href="http://www.bjzdsw.com.cn/dweb/post/336.html">« ä¿å¥å†…裤è¯æ€§åŠè§£é‡Š</a><a class="r" href="http://www.bjzdsw.com.cn/dweb/post/338.html">温湿度表温方æ³?»</a></div> <h4 class="post-date">2010-1-13 10:53:10</h4> <h2 class="post-title">监控设备系统的å‘å±?/h2> <div class="post-body"><p><a href="http://www.xk-cl.com.cn/jksb.asp"><font color="#000000">监控设备</font></a>系统的å‘å±?br />　　视频监控系统å‘展了短短二å几年时间，从最早模拟监控到å‰äº›å¹´ç«çƒ­æ•°å­—监控å†åˆ°çŽ°åœ¨æ–¹å…´æœªè‰¾ç½‘络视频监控，å‘生了翻天覆地å˜åŒ–。在IP技术é€æ­¥ç»Ÿä¸€å…¨çƒä»Šå¤©ï¼Œæˆ‘们有必è¦é‡æ–°è®¤è¯†è§†é¢‘监控系统å‘展历å²ã€‚从技术角度出å‘，视频监控系统å‘展划分为第一代模拟视频监控系ç»?CCTV)，到第二代基äº?ldquo;PC＋多媒体å?a href="http://www.xk-cl.com.cn/jksb.asp"><font color="#000000">监控设备</font></a>”数字视频监控系统(DVR)，到第三代完全基于IP网络视频监控系统(IPVS)ã€?br />　　第一代视频监控：传统模拟闭路视监控系ç»?CCTV)ï¼?br />　　ä¾èµ–æ‘„åƒæœºã€ç¼†ã€å½•åƒæœºå’Œç›‘视器等专用设备。例å¦?a href="http://www.xk-cl.com.cn/jksb.asp"><font color="#000000">监控设备</font></a>，摄åƒæœºé€šè¿‡ä¸“用åŒè½´ç¼†è¾“出视频信å·ã€‚缆连接到专用模拟视频设备，如视频画é¢åˆ†å‰²å™¨ã€çŸ©é˜µã€åˆ‡æ¢å™¨ã€å¡å¸¦å¼å½•åƒæœ?VCR)åŠè§†é¢‘监视器等。模拟CCTV存在大é‡å±€é™æ€§ï¼š<br />　　有é™ç›‘控能力åªæ”¯æŒæœ¬åœ°ç›‘控，å—到模拟视频缆传输长度和缆放大器é™åˆ¶ã€?br />　　有é™å¯æ‰©å±•æ€§ç³»ç»Ÿé€šå¸¸å—到视频画é¢åˆ†å‰²å™¨ã€çŸ©é˜µå’Œåˆ‡æ¢å™¨è¾“入容é‡é™åˆ¶ã€?br />　　录åƒè´Ÿè½½é‡ç”¨æˆ·å¿…须从录åƒæœºä¸­å–出或更æ¢æ–°å½•åƒå¸¦ä¿å­˜ï¼Œä¸”录åƒå¸¦æ˜“于丢失ã€è¢«ç›—或无æ„中被擦除ã€?br />　　录åƒè´¨é‡ä¸é«˜å½•åƒæ˜¯ä¸»è¦é™åˆ¶å› ç´ ã€?a href="http://www.xk-cl.com.cn/jksb.asp"><font color="#000000">监控设备</font></a>录åƒè´¨é‡éšæ‹·è´æ•°é‡å¢žåŠ è€Œé™ä½Žã€?br />　　第二代视频监控：当剓模拟-æ•°å­—”监控系统(DVR)ï¼?br />　　“模拟-æ•°å­—”监控系统是以数字硬盘录åƒæœºDVR为核心åŠæ¨¡æ‹Ÿ-åŠæ•°å­—方案，从摄åƒæœºåˆ°DVRä»é‡‡ç”¨åŒè½´ç¼†è¾“出视频信å·ï¼Œé€šè¿‡DVRåŒæ—¶æ”¯æŒå½•åƒå’Œå›žæ”¾ï¼Œå¹¶å¯æ”¯æŒæœ‰é™IP网络访问<a href="http://www.xk-cl.com.cn/jksb.asp"><font color="#000000">监控设备</font></a>由于DVR产å“五花八门，没有标准，所以这一代系统是éžæ ‡å‡†å°é—­ç³»ç»Ÿï¼ŒDVR系统ä»å­˜åœ¨å¤§é‡å±€é™ï¼š <br />　　å¤æ‚布线“模拟-æ•°å­—”方案ä»éœ€è¦åœ¨æ¯ä¸ªæ‘„åƒæœºä¸Šå®‰è£…å•ç‹¬è§†é¢‘缆，导致布线å¤æ‚性ã€?br />　　有é™å¯æ‰©å±•æ€§DVR典型é™åˆ¶æ˜¯ä¸€æ¬¡æœ€å¤šåªèƒ½æ‰©å±?6个摄åƒæœºã€?br />　　有é™å¯ç®¡ç†æ€§æ‚¨éœ€è¦å¤–部æœåŠ¡å™¨å’Œç®¡ç†è½¯ä»¶æ¥æŽ§åˆ¶å¤šä¸ªDVR或监控点ã€?br />　　有é™è¿œç¨‹ç›‘视/控制能力您ä¸èƒ½ä»Žä»»æ„客户机访问任æ„æ‘„åƒæœºã€‚您åªèƒ½é€šè¿‡DVR间接访问摄åƒæœºã€?br />　　ç£ç›˜å‘生故障风险与RAID冗余和ç£å¸¦ç›¸æ¯”，“模拟-æ•°å­—”方案录åƒæ²¡æœ‰ä¿æŠ¤ï¼Œæ˜“于丢失ã€?br />　　第三代视频监控：未æ¥å®Œå…¨IP视频监控系统IPVSï¼?/p><p> </p><p> </p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; 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