HD-TVI or “High Definition Transport Video Interface” is the most recent analog data transmission technology, developed in 2014 by Techpoint with the aspiration to become the de-facto standard in the field of video surveillance and security systems. Techpoint identified common usability problems and key limitations shared among all of the existent analog HD data transmission standards and tried to develop HD-TVI in such a way that it would be free of drawbacks and better in all aspects compared to anything else available on the market at the time (cheaper, more reliable, more capable). This goal was achieved since day one, and as the HD-TVI standard has now reached version 3.0, it constantly wins user base and market ground with a rising impetus.
As mentioned, there are many HD analog standards besides HD-TVI, but none combines the beneficial characteristics and unique features of Techpoint's standard. Here are the main elements that make HD-TVI stand out against competition:
With HD-TVI, you have the freedom to use whatever DVR or camera you want. There are no compatibility limitations like in other standards, and so the user can select from a multitude of products when building a security system. This can have a positive effect on the total cost of a complete video surveillance system, while it also offers the required versatility that is often needed in such implementations. Right now, HD-TVI is adopted, or at least supported by the vast majority of video surveillance equipment manufacturers.
Besides the indirect savings due to the compatibility factor, there is also a direct financial advantage when choosing HD-TVI. Due to the adequacy of standard low-cost 3C-2V coaxial cables for the transmission of the analog video feed, users can connect their cameras with their reception points at a very low cost, even when the connection distance is quite long. In addition to this, and because the HD-TVI standard can also be used with old CCTV cameras, people and companies can make the transition to HD without having to pay for new cameras.
Long transmission distance
HD-TVI can transmit lossless HD video at a maximum distance of 500 meters, offering the potential for the implementation of large surveillance networks. IP cameras can transmit to up to 100 meters, HD-SDI to up to 150 meters, and Analogue to up to 300 meters. The only one of the rest that can reach the 500m is the HD-CVI standard which however doesn't offer the same level of signal transmission reliability.
The transmission of the video data through the HD-TVI is completely lossless has no delays whatsoever and isn't affected by cable twists that may reach to up to 200 meters long. Even when using a low-quality coaxial cable, the high image quality remains unchanged. The complete absence of transmission delays is due to the fact that HD-TVI video signal data is uncompressed, contrary to what happens with standards such as IP for example. Moreover, with HD-TVI, you can have separate audio and video signal transmission, while the transmission through the cable can be bidirectional.
Video quality is all that a video surveillance system user is after in the end, and HD-TVI won't disappoint in this area either. The maximum supported quality is 1080p at 25 fps or 720p at 30 fps which also happens to be the current ceiling in the field. While other standards like the HD-CVI and the AHD also support resolutions as high as 1080p, the images of the HD-TVI are sharper and the colors are more accurate even in low-light conditions.
Easy to set up
Finally, HD-TVI was made to be simple to set up and use. There will be no complicated IP configurations that can only be done by experts, nor puzzling network infrastructure implementations. This makes the installation of an HD-TVI system easy, cheap, and very quick.