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HD monitors now no longer simply refers front of the surveillance camera ( photosensitive device CCD, chip processing technology ) , high-definition monitor for transmission equipment , the back-end storage devices, control devices, display devices , higher technical requirements , but also high-definition video surveillance intelligent premise and foundation. In the next two to three years , HD will be the hottest topic in the security industry . HD brings change, change is not just the front of the ip cameras , as well as transport , storage , and control the ensuing change. From the front of a webcam ( SD, HD ) , transmission equipment , back-end processing equipment (NVR or DVR), video integrated management platform, storage devices ( centralized storage , distributed storage ) , large- screen display system , a set of product solutions . With the growing numbers and show more variety of advantages of IP technology , the development of video surveillance network has a solid foundation in the process of emerging network video surveillance features formed in the high-tech chip and burn , video servers and other equipment play a huge role in promoting. Aip cameras makes video surveillance is rapidly becoming more family and personal applications. In high-definition video based on the video screen of the monitoring intelligent image analysis using mathematical methods , through the use of computer image processing algorithms to extract the video compiled useful information . With intelligent analysis, we can further extract useful information for efficient coding and reduce invalid information on broadband usage. HD video technology can give us a clearer , contains complete information -rich , high-quality video sources , and intelligent analysis technology can bring us through a variety of intelligent applications . The concept of cloud computing is now becoming more popular , especially in the telecommunications infrastructure improvement. In addition, as prices improve network bandwidth and network monitoring products declined , cloud-based video surveillance solution has attracted more and more attention to the supplier . While cloud-based solution is not a mandatory choice, but it really is a great opportunity to promote civilian video surveillance needs. Currently in China, cloud-based video surveillance applications market is mainly residential and SMB ( small and medium enterprises ) , and most of the demand comes from the traditional video surveillance. In residential applications , the care of children and the elderly are the most important services , which may also include medical assistance system . As most Chinese families living in the apartment , video surveillance is focused on the living room and bedroom areas such privacy , which is an important reason for home monitoring is difficult to be accepted by Chinese families . In the small and medium enterprise applications, cloud solution allows users to check the real-time video , and look back at any point in time to record a video clip , which provides a convenient way to manage and receive alerts. Cloud video surveillance is not just a physical security solution that can cloud the medical integration, support video calls , to maximize use of the mobile terminal . As IT solutions , cloud-based video surveillance applications more easily accepted by the public . In fact, some cloud vendors have applied to the micro-channel technology in China this a popular and timely chat tool. Another important feature is that cloud computing support circle of friends or social sharing. Currently, the video surveillance monitoring field , due to the intuitive nature and a great role in the security video images and other aspects of the play , now not only the use of video surveillance systems in airports, stations , terminals and other public places where population concentration , and in some offices and residential district also installed a video surveillance system in a number of other important places such as prisons is proposed video surveillance applications require full coverage . A video surveillance system generally consists of video capture , video transmission, image display , recording, composition control , and several other parts. How can we truly achieve full coverage of video surveillance , the following factors must be considered. First, the density per unit area in the number of ip cameras required . This should be well understood , it will not generate opposition , because of the limited range of each ip camera shooting , there is not enough number of ip cameras can not do full coverage. Therefore, to achieve full coverage of video surveillance , the number of requests is the first element to be considered ; Second , the angle of a ip camera , whether it is installed in any place, using any installation method , the surveillance camera will always produce blind spots ( even with 360- degree rotating dome ip camera is no exception ) , so the shooting range must be considered for each surveillance camera , using several interrelated cross- shot cameras , camera blind spots to address , monitor truly full coverage ; third , clarity, factors affecting image sharpness (also called image quality ) are the following: First, the ip camera itself, the performance indicators, such as the choice of SD or HD , how light intensity and so on. Second, the use of environmental factors, such as day or night , high or low temperatures ( many surveillance cameras can not work under extremely high or low temperatures can not work ) , indoor or outdoor and other factors. Third, cleanliness , because ip cameras are generally installed in relatively high and relatively secluded place , cleaning work is not easy, but often overlooked , so this factor should be noted ( Speaking of clarity , often only consider from a technical point of view , ignoring non-technical factors that affect image sharpness ) ; fourth , transmission, recording and processing. These factors are also relatively easy to be ignored, because people tend to focus on whether the captured image was clear , the shooting range is full coverage, while ignoring the final image is transmitted to the monitoring center needs , the monitoring center to record, display and viewing ; fifth , intelligent analysis . Due to the large number of surveillance cameras , real-time management staff can not observe each camera area , and therefore the need to focus the ip camera for video analysis , to analyze the video area appears warning area within the cordon broke , items left behind or lost, retrograde , population density and abnormal situations that can arise in the video area to track moving targets automatically identify the target type , marking targets and draw the target trajectory , promptly issued a voice alarm information , such as unauthorized entry or unmanned be on duty police districts , etc. surveillance cameras and alarm situations on the screen to switch to the command center , prompting timely relevant disposal.
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cloud video surveillance, ip cameras, surveillance camera,
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