A network video recorder, also commonly called an NVR, is a video recording and management device that is connected to an IP network (also referred to as a computer network).
The core functionality of an NVR is to take in the video streams from IP security cameras that are connected to the network. As the central device in the camera system it gives users access (locally, remotely or via mobiles) to the live cameras, handles recording and storage of CCTV footage, and facilitates for users to find video evidence. It enables playback and saving of the required video data for investigations and evidence gathering.
These days NVRs tend to be made up of a server with embedded recording software, allowing for easy installation and a low maintenance requirement over time.
In addition to its core functions, NVRs are increasingly benefitting from more advanced features, including the use of intelligent video analytics. Combined with IP cameras of the same brand, NVRs can offer powerful AI-driven video analytics that can help with the recognition and detection of safety concerns, security breaches and potential threat situations. It can pro-actively warn of such scenarios so that humans can intervene and respond to a situation in good time. Furthermore, it can also enable 'forensic search' which allows operators to search video data on specific details, making finding the required footage much easier and quicker, regardless of the amount of data stored in the system. This means that investigations can be conducted quickly, even whilst an event is still unfolding, so that swift intervention can be coordinated.
NVRs come with a pre-determined, maximum number of channels, so it is important to estimate how many cameras eventually may be added on the system. Although some NVRs can be added together to form one system, it does not tend to be a cost attractive method of expanding a system over time. Initial system design and planning is therefore recommended.
We have a select portfolio of NVRs from a number of leading CCTV manufacturers. Find out more about the NVRs we offer.