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新一代数码监控产品的三大技术热点思考

  新一代数码监控产品的三大技术热点思考
  New generation numerical code monitoring product three big technical hot spot ponder 

  安防产品突破了传统的应用领域,逐渐向新市场拓展。随之而来的问题是,当今的监控产品能否紧跟急剧变化着的市场需求;而厂商面临的考验是,能否敏锐地抓住市场需求的关注点,顺势将储备已久的技术迅速产品化,抢占市场先机。本文就当前三大技术热点——“高清采集”、“高清录像”、“智能平台 ”,提出拙见,以供参考。
  The peaceful against product broke through the traditional application domain, gradually to new market development. The following question is, whether does the now monitoring product follow close on the rapid change market demand; But the manufacturer faces the test is, whether to hold the market demand keenly the attention spot, will take advantage of opportunity will stockpile already the long technical rapid production, will seize the market to take the initiative. This article - - “Gao Qing gathers”, “Gao Qing on the current three big technical hot spot to record”, “the intelligent platform”, proposes the opinion, supplies the reference. 

  随着人们安全与防范意识的加强,当今的视频监控较以往任何时候都更加受到关注。同时,频监控的需求端,应用的领域在增加,典型的传统应用领域有银行、文博(文物保护单位和博物馆)、交通(如民用机场、铁路、车站等)、宾馆建筑等等,新兴的应用领域有平安城市、环境保护、教育等等。正是由于安防视频监控需求的逐日扩大,产业链也出现新动向。在产业链上的供应端,涉足的企业在增加,典型的有运营商、传统 IT企业等等。
  因此,对于传统的视频监控产品供应商来说,有机遇,也有挑战,但更多的是责任!在遵循符合安全防范技防产品基本要求的前提下,厂商要根据新需求、新技术不断进行创新,提供真正满足应用需求的技防产品。那么,从产品形态来说,什么样的产品才能够适合安全防范视频监控系统未来的要求呢?
  Along with the people safety and guard consciousness's enhancement, the now video frequency monitoring even more received the attention at any time in the past. At the same time, the frequency monitoring's demand end, the application domain is increasing, the typical traditional application domain has the bank, the museum of cultural relics (Cultural relic preservation organ and museum), the transportation (for example Civil airfield, railroad, station and so on), guesthouse construction and so on, the emerging application domains have safe city, environmental protection, education and so on. Is precisely because the peaceful against video frequency monitoring demand's expansion day after day, the industrial chain also presents the new trend. On the industrial chain's supply ends, the stepping in enterprise is increasing, typical has the operator, traditional IT enterprise and so on. Therefore, regarding the traditional video frequency monitoring product supplier, has the opportunity, also has the challenge, what but are more is the responsibility! In follows conforms to under the safe guard technique against product essential requirements premise, the manufacturer must act according to the new demand, the new technology to carry on the innovation unceasingly, provides meets the application need truly the technique against product. Then, from the product shape, what product only then can suit the safe guard video frequency supervisory system future request?  

  视频监控产品回顾
  Video frequency monitoring product review  

  摄像机、录像机、监视器是早期构建模拟监控系统的基本配置产品,在此基础上,矩阵主机是视频监控的一个里程碑产品,它满足了组建大型监控系统的要求,关键是解决了适合监控业务要求的大规模视频切换的问题。 DVR是视频监控的又一个里程碑产品,它标志着视频监控从模拟时代进入了数字化时代,关键是解决了符合监控业务要求的录像问题,有关DVR国家标准即GB20815-2006《视频安防监控数字录像设备》的发布与实施,标志着DVR作为成熟的技防产品,已列入了我国的安全防范体系中。
  The camera, the videocorder, the monitoring device are the early construction simulation supervisory system's basic disposition products, based on this, the matrix main engine is a video frequency monitoring milestone product, it satisfied has set up the large-scale supervisory system's request, the key solves has suited the monitoring service request the large-scale video frequency cut question. DVR is the video frequency monitoring another milestone product, it symbolizes that the video frequency monitoring entered the digitized time from the simulation time, the key has solved has conformed to the monitoring service request video recording question, the related DVR national standards were GB20815-2006 "Video frequency Peaceful Against Monitoring Digit Image storage device" the issue and the implementation, symbolizes that DVR took the mature technique against product, has included in our country's safe guard system. 

  在视频监控数字化、网络化、智能化的推动下,无论是前端的采集设备,还是后端的存储设备、控制平台,功能与技术,都已有革新。但同时,厂商在捕捉用户对产品关注点的时候却难免产生困惑。需求在变化,并以此推动产品的进步,那么,对于视频监控系统,从需求的角度出发,将来主要的关注点会是什么呢?寻根究底,作为元数据的视频信息是数字化、网络化、智能化之源。
  我们基于高质量的视频图像来萃取有用的信息,并以此达到事先预警和事后翻查,甚至是数据分析的效果。相反,如果视频质量无法适应网络化需求,我们获得的也只是堆积的“视频垃圾”。因此,我们认为不断提升图像清晰度是视频监控一个重要的需求点。

   In video frequency monitoring digitization, network, under intellectualized impetus, regardless of being the front end gathering equipment, the rear end storage device, the control platform, the function and the technology, had the innovation. But simultaneously, manufacturer in capture user to a product attention time actually unavoidably produces puzzled. Can the demand in the change, and by this impetus product's progress, that regarding the video frequency supervisory system, from demand angle embarking, what the main attention spot be in the future? Gets to the root of a matter, takes a Yuan data the video information is the digitization, the network, the intellectualized source. We come the extract useful information based on the high grade video image, and achieves by this forewarns beforehand and peruses afterward, even is the data analysis effect. On the contrary, if the video quality is unable to adapt the network demand, we obtain also are only the stack “video frequency trash”. Therefore, we thought that promotes the image clarity is unceasingly the video frequency monitors an important demand point. 

  高清采集
  Clear gathering 

  目前的视频监控系统,图像清晰度可达标清。我们知道,视频监控采用的是电视技术,而当前的电视技术已经从标清正逐步走向高清。所以,对于数码监控来说,高清已不是技术问题,而是产品化的问题。
  The present video frequency supervisory system, the image clarity may attain a designated standard clear. We knew that what the video frequency monitoring uses is the television technology, but the current television technology already incorruptible gradually moved toward from the sign high clear. Therefore, regarding the digital monitoring, Gao Qingyi is not the technical question, but is the production question. 

  高清产品支持的图像分辨率至少要720p以上,一个支持高清的视频监控系统,系统中各个环节的产品均要支持高清,包括图像采集、传输、录像与显示。支持高清的网络摄像机可提供720p以上分辨率的信源编码,它解决了高清图像的采集问题。 IP网络可承载音视频数据,网络摄像机对信源进行IP封装,通过IP网络和后台技术平台,可解决高清图像的分发、存储及显示的问题。
  The high clear product support's image resolution wants above at least 720p, supports Gao Qing the video frequency supervisory system, in the system each link's product must support high clear, including image gathering, transmission, video recording and demonstration. Supports Gao Qing the network camera to be possible to provide above 720p the resolution source encoding, it has solved the high clear image gathering problem. The IP network may the load bearing sound video data, the network camera carry on the IP seal to the source, through the IP network and the backstage technology platform, may solve the high clear image distribution, the memory and the demonstration question. 

  在前端采集部分,网络摄像机与模拟摄像机+DVS均可实现信源编码和传输,从结构上来说,络摄像机是将DVS与模拟摄像机集成在了一起,但实际上两者有着本质的区别。DVS通过模拟摄像机采集图像,之间通过CVBS传输模拟图像,DVS完成编码和IP传输:而网络摄像机的视频采集、压缩均在内部实现,所以,网络摄像机可作为高清视频监控的前端产品,而模拟摄像机+DVS无法满足。
  Gathers the part in front end, the network camera and simulation camera +DVS may realize the source encoding and the transmission, from the structure, winds the camera is DVS and the simulation camera integration in the one, but in fact both have the essential difference. DVS through the simulation camera gathering image, between through the CVBS transmission analog picture, DVS completes the code and the IP transmission: But network camera's video frequency gathering, the compression realize in the interior, therefore, the network camera may take the high clear video frequency monitoring the front end product, but simulates camera +DVS to be unable to satisfy. 

  模拟摄像机+DVR满足了D1分辨率图像的记录,而高清图像的记录需要网络存储(IP存储)。DAS、NAS、IPSAN或SAN存储系统,因不是技防专用产品,故还无法完全满足技防要求。开发满足高清图像的技防专用录像产品,是安防产品供应商面临的一个研发课题。
  Simulation camera +DVR has satisfied the D1 resolution image record, but the high clear image's record needs the network to save (IP memory). DAS, NAS, IPSAN or SAN memory system, because is not the technique against special-purpose product, therefore is also unable to satisfy the technique against request completely. The development satisfies the high clear image the technique against special-purpose video recording product, is a research and development topic which the peaceful against product supplier faces. 

  高清录像无论是PC-DVR厂商,还是E-DVR厂商,在图像记录设备的开发方面都有着多年的积累,对于DVR产品来说,已经处于成熟期。如果将DVR的录像技术,平滑移植到IP存储产品上面,可很好地满足IP前端接入的视频监控系统的要求。
  Gao Qing records, regardless of being the PC-DVR manufacturer, the E-DVR manufacturer, has many year accumulations in the image recording equipment's development aspect, regarding the DVR product, already was in the mature period. If the DVR video recording technology, transplants smoothly to the IP memory product above, may satisfy the video frequency supervisory system's request which well front end IP turns on. 

  另一方面,模拟摄像机+DVR这种模式,目前还是主流应用。采用同样的录像技术来满足模拟摄像机和网络摄像机的接入,以适应当下和未来的要求,这仍然是今后一段时期内合适的视频监控解决方案。从这个角度出发, DVR厂商将面临一次新的机遇。当然,通过扩展存储可满足录像保存周期较长的需求,但录像服务与扩展存储设备如何高效、可靠地协同工作是存储系统的又一个课题。
  On the other hand, simulates camera +DVR this kind of pattern, at present mainstream application. Uses the similar video recording technology to satisfy simulates the camera and network camera's turning on, will adapt immediately with future request, this was still in next times the appropriate video frequency monitoring solution. From this angle embarking, the DVR manufacturer will face a time new opportunity. Certainly, saves through the expansion may meet the video recording preservation cycle long need, but how records serves and expands the storage device to be highly effective, the joint operation is memory system's another topic reliably. 

  回顾DVR存储(录像)系统的完善过程,我们可以发现,当初, DVR自身存储系统的完善还无法满足监控业务高可靠的要求,真正的完善是在与存储介质厂商即硬盘厂商的技术合作以后才完成的,然后逐步地进入了成熟阶段。所以,对于扩展存储系统来说,也要经历一个存储(录像)系统与网络存储设备厂商的技术合作过程。
  Reviews DVR to save (video recording) system's perfect process, we may discover, DVR own memory system's consummation was also initially unable to satisfy the monitoring service high reliable request, the true consummation will be is the hard disk manufacturer technical collaboration later only then completes with the storage medium manufacturer, then entered the mature stage gradually. Therefore, regarding the expansion memory system, must experience a memory (video recording) the system and the network storage device manufacturer technical collaboration process. 

  智能平台
   Intelligent platform 

  高清图像不仅能提升视频监控系统的质量,如果将高清图像作为智能分析的视频源,那么,智能分析的准确率将会得到有效提高。所以,对于智能应用来说,智能算法前移是进行高效智能分析的较好方案。
  The high clear image not can only promote the video frequency supervisory system's quality, if will be high the clear image to take the intelligent analysis the video frequency source, that the intelligent analysis's rate of accuracy will have the effective enhancement. Therefore, regarding the intelligent application, the intelligent algorithm moves ahead is carries on the highly effective intelligent analysis the good plan. 

  网络摄像机作为承载智能分析算法的平台,无疑将有效提升智能应用效率和准确率;对于模拟摄像机接入的视频监控系统来说,需要后台的支撑来实现智能分析。作为能具有网络、模拟摄像机跨界接入的混合型DVR(即Hybrid DVR,简称H-DVR),不仅能获取网络摄像机的智能分析结果,还能对模拟摄像机的图像进行智能分析,所以, H-DVR是一个可较好地承载智能分析的产品平台。
      对于由网络摄像机、模拟摄像机、H-DVR组成的这样一个视频监控系统,能同时满足数字化(高清化)、网络化、智能化的要求,是能够满足目前和未来要求的视频监控解决方案。
  The network camera takes the load bearing intelligence parsing algorithm the platform, without doubt will promote the intelligent application efficiency and the rate of accuracy effectively; Regarding simulated the video frequency supervisory system which the camera turned on, needed the backstage the support to realize the intelligent analysis. As can have the network, simulation camera straddling of zones turning on mixed DVR (i.e. Hybrid DVR, is called H-DVR), not can only gain the network camera's intelligent analysis result, but can also to simulate camera's image to carry on the intelligent analysis, therefore, H-DVR is one may well the load bearing intelligence analysis product platform. Regarding by the network camera, simulates this kind of video frequency supervisory system which the camera, H-DVR are composed, can simultaneously satisfy the digitization (high clarification), the network, the intellectualized request, is can satisfy the video frequency monitoring solution which present and the future will request. 

  结语
  Concluding remark 

  在当前高清化、智能化需求高涨的前提下,为了兼顾保护先期投资和先进性的需求,不少厂商推出更加符合用户实际需求的产品。而芯片商也推出更加满足厂商需求的芯片产品,整个产业链更加紧密地配合,共同推动数字监控向前迈进。基于TI642、648DSP及达芬奇平台,海康威视开发出DS-2CD852MF高清网络摄像机、DS-9000混合型DVR、iDS-4004HC/B行为分析板卡及iDS-4004HC/P车牌识别板卡等新一代数码监控产品,来满足视频监控专业市场的需求。
  In the current high clarification, the intellectualized demand surge upward under premise, to give dual attention to the protection to invest and the advanced demand ahead of time, many manufacturers promoted conform to the user physical demand product. But the core film executive also promotes the more satisfied manufacturer demand the chip product, the entire industrial chain coordinates closely, promotes the digital supervision to forge ahead together. Based on TI642, 648DSP and the Da Vinci platform, the Haikang prestige regards develops the DS-2CD852MF high clear network camera, DS-9000 mixed DVR, the iDS-4004HC/B behavioral analysis board card and new generation numerical code monitoring products and so on iDS-4004HC/P car license recognition board card, satisfies the video frequency monitoring professional market the demand. 
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