CVR is also called central-level video network storage equipment. It is a collective name for a class of special security video surveillance equipment developed from enterprise-level standard IPSAN/NAS network storage equipment combined with video surveillance applications.
Network high-definition video surveillance solves the problem of unclear image quality of analog surveillance video, and also poses challenges to supporting facilities such as network and storage. With the explosive growth of digital high-definition, the demand for storage capacity has grown geometrically. From the perspective of capacity, small-bay storage products (such as less than 8 bays) are greatly restricted by the number of cameras that can be stored. Therefore, the market demand for large-bay storage products is increasing, so many manufacturers have launched 8 Bay NVR, 16 bay NVR, 24 bay NVR to cope with the increase in capacity demand.
However, the increase in the number of disks alone cannot actually solve the problem. Embedded NVRs usually cannot meet the application requirements. Because of the increase in transfer capacity, actual applications have put forward performance, redundancy and reliability, manageability and maintainability. higher requirement. Therefore, the industry has set its sights on the inherent high performance (enterprise-level general-purpose processors), high reliability (RAID disk redundancy, network redundancy, redundancy, fan redundancy), and high manageability and maintainability (standard industrial Components, standard management protocols and interfaces) enterprise-level standard IPSAN / NAS network storage equipment.
IPSAN/NAS network storage equipment, originally standard IT equipment without video surveillance function, needs to be connected behind the server (the server is installed with video surveillance software). With the development of technology and the integration of surveillance and IT, the industry has gradually formed CVR central-level video network storage devices with different functions by removing the intermediate servers and directly installing various security video surveillance software modules on IPSAN/NAS network storage devices.
In the case of a poor CVR network, you only need to try to establish a session connection, and the reconnection process takes a very short time; IPSAN is likely to cause connection interruption when the network is poor, and the front-end and storage have to constantly try to remount the connection, which is costly. Sometimes it is easy to lose videos. The CVR storage mode can support video streaming through the encoder and directly written to the storage device, saving the cost of the storage server, avoiding the single point of failure and performance problems of the server, and ensuring the high stability and high performance of the monitoring service.
The iSEMC NP Pro controller supports CVR access, the default configuration CVR supports 8T and below hard disks as video disks, and supports hard disk dynamic detection, supports graphical RAID5 configuration, supports plan/video/alarm linkage video configuration (supports recording audio); supports local Export the backup video, support retrieval and tracking by type/date/time, support restart termination/pause/single frame/capture, support product combination use, unified management/operation.
For more functions, please click isemc CVR
