HD-TVI
HD-TVI is short form for "High Definition Transport Video Interface" and describes a standard for transmitting high-resolution HD videos on an analog basis. Analog cameras with HD-TVI record surveillance videos from 2 MP up to 4K and use coaxial cables for video transmission. With the introduction of HD-TVI, the industry responded to the need, especially for professional users, to be able to switch to high-resolution video surveillance with manageable effort and low costs. Thanks to their easy installation and new technologies for control and power supply, HD-TVI analog cameras are also an alternative for new installations.
Before the boom in IP surveillance technology, many security-critical areas were already secured with analog cameras. Therefore, especially in industry, banks and authorities, numerous buildings and premises are equipped with many kilometers of intact coaxial cables (RG 59). Old analog cameras only utilized a fraction of the transmission potential of these cables with an SD video signal. Instead of leaving this potential unused and building a second infrastructure with network cables, HD-TVI installations simply continue to use the old cables. Only the cameras and the central recording devices will be replaced. By not having to rewire, enormous cost savings can be achieved, no construction work is necessary and the switch to HD surveillance cameras can be completed quickly. Public traffic and normal work processes are not hindered by replacing the cameras and there are no loss of sales.
The market leader Hikvision offers cameras that can be powered and controlled via coaxial cables using Up the Coax and PoC (Power over Coax) technologies. From fixed domes to PTZ cameras, all designs are available for use indoors and outdoors and are also available as network cameras. Smart DVRs for HD-TVI are in no way inferior to network recorders; transmission distances of 500 m and more can be achieved without any problems.