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The NVR system is a complete digital IP video surveillance system that integrates matrix controllers, switches, control boards and DVRs with storage capabilities into the same system. As a software-based enterprise and video, voice and data management system, NVR provides graphical user interface, monitoring, recording and analysis capabilities to provide managers with timely and accurate information.
The NVR is the best choice for multi-site monitoring, providing a distributed monitoring system and centralized control of remote installation and offline storage recording. In the network video surveillance environment, the NVR provides video and video management functions.
The NVR is selected based on the required performance, usually using the number of turns per second as an indicator. If each camera requires 30 frames per second, a server may only be able to record for 25 cameras. If 2 sec per second is sufficient, then one server can manage 300 cameras. This means that system performance is fully utilized and optimized.
For large deployments, IP network video systems are the easiest to scale. When the system needs to support high video recording rate or longer video splashing, it can be done by adding processor capacity and memory to the network video server. Or the easier way is to join another NVR device, either at the central site or at the remote site.
The IP video surveillance camera performs the encoding function, or the analog camera can cooperate with an independent encoding/decoding device. The NVR can be placed anywhere in the network, and the physical independence of the encoding device simplifies management and improves usability, and the NVR does not need Contribute system processing power for managing video cards or compression. NVR provides video stream management and video storage management. It should not be overlooked that storage management is also a very important factor to meet the storage requirements of users for 24-hour recording. NVRs can clip stored video to dynamic or other criteria, further reducing day-to-day maintenance and potentially reducing the need for video storage capacity.
Today, governments and enterprises maintain multiple independent servers for remote DVRs; when using any NVR deployed in the network, centralized management of remote database video becomes simpler, and remote databases can be replicated to the central security room. Separating video surveillance functions also helps provide productivity. While maintaining the servers of other mission-critical systems, the IT department can take responsibility for maintaining video surveillance servers and storage, ensuring that edge video devices can be connected to the network stably. The server can also Regular maintenance provides the ability to continuously monitor network assets.
In addition, the IT component provides reasonable access to resources based on security policies so that security personnel can focus on security incidents rather than maintaining storage devices. As a result, not only the repetitive device investment is reduced for network transmission and video access, but also organizational roles and responsibilities are optimized. Utilizing the fully distributed capabilities of the NVR, it is well suited to work with wireless Mesh networks, further reducing initial equipment deployment costs and operational costs after use.
Introduction to the basics of network video recorders
[ Huaqiang Security Network News ] Network video recorder is the main component of distributed video surveillance system, which can be located anywhere in the network. NVR has all the features of today's DVR, but the essential difference is that NVR is a completely digital system, and is designed for Designed for IP video transmission. NVR allows managers to access, view and control video cameras from anywhere on the network. NVR is basically a software solution that helps end users make hardware decisions, including servers, storage, encoders and decoders, and cameras. NVRs can support traditional analog and IP video cameras from multiple vendors, including advanced megapixel cameras, and most offer advanced programmable interface APIs for control and custom function development.