What is HD-TVI?
HDTVI , High Definition Transport Video Interface
, Which is the latest HD Analog technology introduced. It is a DSP-TVI technology developed by Techpoint(2012), and the Chipset was sold to Intersil. Chinese security product manufacturer, such as Hikvision, HanBang, put this technology into their new product.
HD TVI successfully solved HD-SDI's previous problems. TVI can convert the digital signals to analog ones, it extends the transmission distance, reduces the total cost, and takes less storage capacity, HD-TVI is also based on coaxial cable, support HD video signal(720P/1080P), Audio signal, digital signal transmission.
The features of HD-TVI:
> 1080P/720P( 25/30 fps) video signal;
> Long transmission distance at 300-500 m;
> No Video loss;
> Real-time preview without delay;
> Transmit video signal, audio signal and dual-way data communication, 3 signal transmission over one coaxial cable;
> Follow same connection structure with original analogue system without cable (Coax / UTP) changed, which means users can just change their old analog cameras and DVRs to TVI cameras and DVRs to get a brand new1080p surveillance system, don’t need any other special knowledge and extra cost.
HD-TVI vs HD-SDI
So in conclusion, the advantage of HD-TVI compared with HD-SDI is:
> Longer transmission distance(without boost) ;
> Affordable Price;
> Better Anti-interference and Reliability;
HD-TVI vs IPC
So compared with IPC, the advantage of HD-TVI is:
> No compression, so no video quality loss;
> Real-time video display, without any transmission signal delay;
> Low requirement for network bandwidth;
HD-TVI vs HD-CVI
> Longest transmission distance for all resolutions, on both Coaxial and Twisted Pair Cabling;
> Broadest compatibility w/ analog & HD cameras;
> Most flexibility for DVR channel configuration;
> Only HD format to provide IP camera support on up to 2 channels.