When it comes to security camera systems for the home, office or facilities, the replacement of older analog camera systems with digital ones has been a slow process for a number of reasons.The most obvious reason is the expense as you are not just replacing the security cameras and recording units, but also the coax cable as well. Plus, there will need to be amplifiers and other supporting equipment in order to get the clearer digital signal.
However, there is a relatively new system that allows you to keep the old coax cables while upgrading the cameras and recording equipment to HD quality. This new system costs less than other digital models(HD SDI ,HD CVI etc ) and carries the promise of
being the affordable solution. The HD TVI security camera system is one that is garnering a considerable amount of attention for
Standing for High Definition Transport Video Interface, When the Chipset was sold to Intersel, it was put into new products that
quickly became very popular in the industry,particularly with Chinese manufacturers including Hikvision (world's largest manufacturer
of CCTV equipment ).This is because the HD-TVI security camera system coverts digital signals into analog so that the transmission distance is extended.The net effect is that the total cost is reduced and there is less storage capacity that is needed.Since the system
is based on coax cable ,the infrastructure is already in place. This means that it will support HD video of 1080p qualiy
The Advantages of HD TVI
There are several benefits of this particular system, especially when considering the technology that is available and it utilizes the
best of both worlds between digital and analog.
- Long Distance Transmission up to 1500 feet over coax.
- No Video Degradation
- 1080p & 720p Video Signal and analog on same DVR
- No Delay with Real Time Preview
- Can Transmit Video & Audio Signal along with Dual-Way Data Communication
- Three Signal Transmission over a Single Coaxial Cable(video. audio &control)
This means that you do not have to purchase any additional special equipment or replace the older coaxial cables in your home, office or facility. the new system will actually save money over purely digital systems that require new cables, amplifiers and other equipment
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Compare to HD SDI .HD TVI transmit 720P/1080P signal over coax cable up to 1500 feet and 700 feet on twist cable which HD SDI not
support without any boost. and no delay on the real time view.
As well the main different between CVI and TVI is CVI chipset only make from one manufacturer -Dahua and is not open and sealed,
and TVI can comparable to many third party vendor.not Backwards Compatible and can not mix use 720P & 1080 P or analog system which TVI
also you get crystal & high quality 710P/1080P picture /video over the same cable the analog camera system use including 960H and cost are
very close.The another great future is TVI can over audio.video&control signal on the same cable which means you don't need to run additional control cable for PTG camera or audio signal
All in all, the HD TVI security camera system is one that allows for greater flexibility at a lower cost to convert video security from analog to digital without the added expense of replacing wires or adding support equipment