The Network Video Recorder, also known as the NVR, is another essential element to any IP camera system. Connected to the same IP network, the NVR can be installed virtually anywhere in your building or home. The NVR allows you to record and store video on a hard drive, snap images and transmit them to your computer or remote device for live and recorded viewing. Network Video Recorders usually have multiple channels for inputting security camera feeds, and are an all-in-one place for combining feeds and keeping a comprehensive eye on your surveillance feeds. NVRs and DVRs may be placed on a shelf or desk, wall mounted, or mounted behind a false wall.

NVR’s differ mainly from DVR’s in that they record video from IP cameras, while DVR’s mainly record analog-based video to a digital format. Standard DVR recorders use coaxial cables, while many NVRs connect through Ethernet cables, such as a cat5e or cat6.

An NVR makes it easy to record video surveillance footage, but you will need connected hard drives on which to store this footage. Choosing the right amount of storage for your surveillance camera installation can seem like a confusing gamble, but it doesn’t have to be; it’s simply a matter of calculating the length of video you need to store, by the bitrate and resolution your camera shoots at. When recording 4k security camera video, this can end up being a large number requiring terabytes of footage. For lesser archival needs, you can usually get away with much less.NVR’s differ mainly from DVR’s in that they record video from IP cameras, while DVR’s mainly record analog-based video to a digital format. Standard DVR recorders use coaxial cables, while many NVRs connect through Ethernet cables, such as a cat5e or cat6.

Darkness provides cover for theft, trespassing, and other crimes. When incidents occur at night, conventional cameras may lose important details by rendering black and white images with infrared supplemental lighting. Although security camera systems are becoming more commonplace in urban parks in recent years, there are still many security requirements that cannot yet be met, such as high-resolution night vision and recording in colour. The colors missing from the footage can be very critical information in certain contexts, such as forensic evidence collection.

What is Hikvision ColorVu technology?

Cameras equipped with Hikvision ColorVu Technology extend and enhance surveillance capabilities into the dark, lifting the cover of night to capture vivid chromatic images – leading to the prosecution of criminals and ultimately enhancing safety. Hikvision ColorVu cameras’ powerful ability to capture details in low lighting comes from two specific breakthroughs in hardware technologies: advanced lenses and high-sensitivity sensors.

In contrast to conventional lenses, ColorVu lenses are equipped with a super-aperture, reaching up to F1.0, which allows more light to enter the lens so that imaging brightness can be increased. Hikvision ColorVu camera lenses also feature Broad-Band Anti-Reflection (BBAR) Coating and Extra-Low Dispersion (ED) Optical glass, to reduce light flare and efficiently reproduce an image’s sharpness and colour saturation. These technologies effectively overcome the kind of key information that gets blocked by a light flare.

Hikvision ColorVu camera sensors demonstrate an extraordinary photovoltaic conversion efficiency. They employ an advanced sensor technology – a new light-collection structure that vastly improves the utilisation of light. Tests show ColorVu cameras continually provide colourful, sharp images right down to the lowest light levels. At the same time, their self-adapting 3D DNR algorithm on ISP guarantees high imaging quality.

In addition, extreme light conditions are taken into consideration in the design process. ColorVu cameras are equipped with warm supplemental light, so when there is no light source whatsoever – even starlight or street lights – they can guarantee colourful imaging. This feature provides environmentally-friendly, soft, warm lighting, reducing any harsh discoloration of the object being illuminated. As a result, Hikvision ColorVu cameras provide bright colour video images 24/7 in low illumination conditions.

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