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  • HD NVR applications in the medium and small video surveillance system

        In networking, high-definition trend driven, network security products market only to rise, and as a network monitoring system, and IP camera supporting the use of NVR, even more shine to achieve a near-speed growth, increasingly the more fields to begin the installation NVR video surveillance systems to enhance its network process. NVR products are mainly used as a storage device for small and medium center and distributed storage device is ideal for high-efficiency digital pure IP platform to build, or upgrade to meet the requirements of existing analog systems IP video surveillance system.
         Origin NVR video surveillance applications in the network video technology to replace the traditional use of a better networking experience, initially mainly used in enterprises, factories, education and other areas scattered and easier wiring. Currently, with the rapid spread of the network upgrade, IT high-tech image processing technology, the decline in costs, NVR, and IP camera has been rapid development, has become an inevitable choice for the current network HD surveillance system build. NVR system safe city, public security, finance, transportation, medical and other applications of several major industries have begun to bear fruit. 2013,  Apexis also follow the trend, in addition to delivering high performance network video surveillance project for the use of medium-sized, high-stability, high-capacity HD NVR, but also recently launched for small, micro network video surveillance project Easy to operate, easy-compatible, low-cost HD NVR. The following describes their application needs from the needs of the different characteristics of NVR-scale projects.
         HD NVR network video surveillance applications in small projects
         Users generally refers to small-scale monitoring of the scale 80 monitoring points or less, mainly used for video surveillance within a small area to see and video storage. Since monitors smaller, generally do not set up a special monitoring center, guard room only do surveillance, collecting and recording everyday situations in the region, after the video viewing, to detect anomalies, and to achieve alarm and other functions, to achieve efficient, safe and convenient as one of the remote monitoring, as quickly and accurately deal with emergencies, be able to remotely access to the front of the video image, and the user is left for future system upgrades redundancy and flexibility to expand and upgrade.
         Fewer small-scale users of applications, mainly in the important area of ​​real-time video surveillance, mainly in the doorway, entrance, stairs and interior important parts; well as for post-forensics, video storage time is usually 15-30 days.
         Small high-definition network video surveillance project for the new HD NVR demand characteristics are:
         Openness: the market more and more NVR supports ONVIF, PSIA and 28181 protocols or standards, standardization, openness can make the system more effective and more comprehensive. Powerful network services (support DHCP, PPPOE, FTP, DNS, DDNS, NTP, UPNP, EMAIL, IP permissions, IP searches, Alarm Center, etc.), perfect (WEB, Client, SDK), easy to achieve interoperability;
         Simple network: IP-based network, to build a more flexible system, reduce intermediate links, fast direct monitoring of business between the image source and the user, the application of more efficient, and more resources into the economy; wear can easily achieve a variety of network through step to achieve remote monitoring, abandon all kinds of complicated network setup, easy.
         Flexible Deployment: networking requirements of the system is simple, flexible, and can adopt any of the nearest point of access to monitor the way the access network, constitute a system.
         Stable and reliable storage: support center storage, front storage two kinds of storage, and support for simple and effective application mode can significantly extend the life of the hard drive, optional support for RAID levels generally provide reliable storage solutions, make important video information will not be lost because of damage to the hard drive.
         Easy management: NVR can achieve full network management and all IP transmission network front-end monitoring and centralized management of the entire process, including monitoring of equipment status and parameters of browsing; own domain name services (ARSP), a key to enable remote monitoring.
         Safety: the use of embedded hardware and dedicated embedded software, safe and reliable, no viruses; perfect protection circuit, unique triple watchdog function, ensure that the equipment never crash.
         Easy to use: The system operation is simple, easy to use; support multiple operating mode to control the keyboard, mouse, remote control, WEB, to provide desirable to use for different types of users.
         Can support 3G dial-up, WIFI module expansion; supports multiple web browser (IE, Chrome, Firefox, Safari) and so on.
         For a small network video surveillance systems currently on the market for embedded NVR can access management major 4-way, 8-way, 16-way, 24-way high-definition video, the device compact, low power consumption, support for high-definition video camera management, recording, storage real-time decoding and display, and more concerned about the configuration flexibility, user experience, and will integrate applications such as intelligence analysis capabilities, cost-effective, easy to use, high quality, cost-effective, family, nursery, warehouse, chain stores, factories , and other small shops, the best choice for mini-network video surveillance project. System shown in Figure 1.
         HD NVR network video surveillance applications in medium-sized projects in the
         Medium-sized users generally refers to the actual needs of the video surveillance points between 80 monitoring points to 500 monitoring points, the demand for video surveillance requirements can view real-time video images of all the front-end cameras, video storage time is 30 days or more, video centralized monitoring and management approach to management, remote user access needs. Medium-sized users in the field of distributed banks, schools, hospitals, public security, telecommunications, electricity, water and so on.
         Medium-sized user application needs the following main points:
         Centralized management: setting a unified monitoring and management platform in the monitoring center, the realization of all the former system, the back-end equipment for unified management; also responsible for the user´s permissions on the platform, device status, the linkage strategy, electronic maps, alarms and operating logs centralized configuration and management; support for cluster building applications can be achieved through the establishment of a cluster expansion platform management server.
         Centralized display: monitoring center should be configured large screen display device, consisting of a wall or mosaic screen television monitors display high-definition video images.
         Video surveillance private network: requires the establishment of an all-digital video surveillance private network, the new network transmission and system can meet future expansion of data services, information clear and stable image, video, data blocking, without delay.
         Centralized power management: Due to the particularity of video surveillance systems, from the industry in terms of technical specifications, generally require separate dedicated power supply, the introduction of AC380V AC220V power via UPS output power from the control center to the front of the main distribution box and the back-end surveillance cameras center facilities, such as switches, monitoring and management of servers and other control equipment.
         Remote client access: remote access to real-time monitoring via computer and video call recording, etc.; forwards with streaming capabilities for real-time monitoring of video transmission, management, and distribution; unified format to upload video surveillance, to ensure that important surveillance video retrieval, than Yes, management, backup.
         Other expansion needs: including dealing with front linkage alarm monitoring area, two-way audio transmission, system operation and maintenance graphics processing and other related functions.
         Medium-sized high-definition network video surveillance project for the new HD NVR demand characteristics are:
         Multi-screen and full-screen monitor: IP addresses can be included in all front-end device management list. Single screen can simultaneously monitor 16 channels of audio and video, support for screen switching and carousels, enabling dual-stream transmission.
         Camera Management: Support for the management of large-scale monitoring points, the camera automatically search configure various parameters, you can adjust the bandwidth, image quality, PTZ protocol, IP address and other parameters; can be controlled via the front-end software for PTZ, camera, lighting, rain scraping device control, support preset, cruise.
         Expansion: Supports motion detection / sensor alarm / linkage alarm and display text, sound alarms prompt and continuous capture images; each camera can achieve full-duplex voice transmission, the center control point to manage the dialogue, which can be more than Road monitor and multi-channel broadcasting; arm work performed automatically according to the time the policy.
         Video, search, playback function: Support manual / timer / motion / alarm recording, supports timer / motion / alarm recording run automatically according to the recording time strategy, support for multi-drive recording; supports playback of audio and video synchronization, specify the playback time , the video can be retrieved, according to local playback such as date, location monitoring, hosting, and search condition monitoring, remote playback.
         Security features: support for important video files anti-delete function, improved file protection security; viable sub-level user management, different users have different levels of authority to operate, improve system security; support screen lock feature, lock screen state restrict all the features of the software operation, to prevent others from illegal operations.
         Condition monitoring: display cases IP camera work status, video, alarm, etc. through the light; when the mouse moves to the status indicator, automatic pop-up status indicator comment.
         Remote data transmission and remote host configuration: front and rear ends of all remotely configurable equipment, including front-end monitoring center, all the equipment information, configuration parameters, and user permissions backend, to achieve a unified management system; can communicate with other management systems and synchronization to maintain data consistency.
         Application Intelligence technologies: such as smart search; intelligent video quality testing, NVR can regularly test the connection status of the camera image, such as lens cover, focus blur, etc.; alert zone, goods protection, fighting crowds and detection; demographics, walking trajectory drawn human face recognition.
         Currently, the market for high-end NVR medium-sized projects, typically using a number of IT high-tech, such as video and audio codec technology, storage technology, network technology and smart technology, can achieve high-definition video storage, centralized management, unified command, sudden send event handling, multi-system integration, powerful intelligent video analysis, etc., can be local independent work can also be networked to form a powerful security system, can form the core of a multi-stage management platform, up to 32 channels simultaneously access management 1080P HD video.
         DVR and NVR inherits the advantages of the system, such as the deployment of convenient, easy to use, storage, reliable, self-contained unit can also be used as a large sub-systems, while, NVR using new technology, abandon the traditional DVR application brought limitations, the integration of new technologies, you can dig a lot of new applications. For example with the integration of business management systems, can live on the production line, supply chain, out of storage and logistics management, especially where there is a chain of corporate offices, NVR is deployed in each branch office structure, with headquarters collaborative information at any time management site. In addition, NVR can also be combined with cloud build service-oriented systems, the new generation of NVR have sufficient resources openness is no longer a one-way flow of business units in the traditional sense, resources can be allocated on demand, can be formed by a combination of a lot of NVR as a huge pool of resources, as basic services, but also a platform for the virtual service.
         The future, for more diverse market and demand, NVR performance regardless of the product in terms of the breakdown products, functional diversity, etc. all will have made ​​great progress and better segmentation of the application, will be more cost-effective high, I believe in the catalytic multiple factors, NVR will get a larger scale applications.

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