The difference between analog surveillance cameras and HDCVI security cameras
Analog security camera systems, they are almost everywhere, because the camera is very popular since the beginning.
With a standard analog security camera system, is the maximum resolution 960H, or 928x480.
And most will only display a standard D1, 704 × 480 resolution.
This is equivalent to what tv stations until June of 2009 were broadcasting and since then the stations switched over to HD.
With the standard cctv system you will need a digital video recorder.
And a coax cable from the camera to the dvr for recording and display the 700tvl security camera's.
Also utp in combination with baluns is a common solution.
In time we will look back at analog in the same way we are now looking back at vintage images.
High definition will become more important, because technical innovation is always improving.
HDCVI is useable with a standard rg59 coax cable and will display at least 720p HD.
In the near future we will offer 1080p.
It is important that you will use an original copper coax cable.
This will guarantee the best image display.
With a HDCVI installation, you can buy a CCTV the same as you been used to.
There is no difference in cabling, but all the old surveillance cameras and recorder, need to be replaced for HDCVI security cameras.
So for a small fee, buya HD camera system, or change everything to HDCVI now and see everything crystal clear, as with a 720p ip camera!
SDI and HDCVI
A great thing is that HDCVI distances can make up to 500 metres, where SDI and standard CCTV, may go up to 100 feet long.
What is HDCVI?
HDCVI stands for "High Definition Composite Video Interface" and is developed and marketed by Dahua Technology Academy.
HDCVI is a new technique, for sending video images via coaxial cable.
Before HDCVI was on the market, we were used to with a resolution of 960H.
960H took care of an upgrade, by as much as 30% in vertical lines.
So the maximum resolution was 960 x 480 pixels.
If you wanted higher image quality via coaxial cable, thenyou can try SDI.
Or it was necessary to convert everything to ip, what enormous costs entailed.
But since the rise of HDCVI, this technology, become a worthy alternative, for IP camera systems.
HDCVI is licensed, to uncompressed resolutions, up to 1080 p (1920 x 1080) to send via standard rg59 coaxial cable.
HDCVI goes up to 500 metres, with no loss in signal and image quality, where SDI and standard cctv may be up to 100 metres.
HDCVI also makes unlike IP cameras, that there are no more delays in a network and so no failing images.
Another great advantage is that, in addition to video and audio, HDCVI also can send data via coaxial cable.
This includes operating a osd menu, or a ptz.
HDCVI vs analog camera
- Standard cctv has a limit of 960 x 480 pixels
- HDCVI up to1080p/2MP
- HDCVI delivers 450% more beautiful image, compared to a standard cctv camera system
- CCTV can only send video via coax cable, for audio and control is a separate cable required.
- HDCVI send audio/video and data via coax cable and saves enormous time in installation and cabling
- CCTV and HDCVI are both affordable, but HDCVI gives HD image for the same price.
HDCVI vs SDI
- Longer video transmission distances, 500 metres for HDCVI and 100 meter for SDI
- HDSDI transmits only video and HDCVI send video/audio and data
- HDSDI can only send high quality video images via 100% copper coaxial cable and HDCVI can be used with all types of cctv cable.
- HDCVI can also provide excellent HD images, by using cca cable, but we recommend 100% copper coaxial cable.
- HDCVI can also be used, in combination with video baluns and utp cable.
- HDCVI is many times cheaper than SDI
HDCVI vs IPC
- IP cameras can send images via coax cable, without using special solutions.
- HDCVI can send video footage via utp cable, using baluns and so again a huge saving on costs
- IP cameras can send images over distances longer than 100 metres, without using special solutions, HDCVI can send to 500 meters without the use of special solutions
- IP cameras requirements quick bandwidths and provide for delays on a network, as well as ip conflicts.
- HDCVI claims no bandwidth and gives no delay in a network and no network conflicts
- HDCVI is much cheaper than a network IP camera with recorder
IP cameras have some advantages over HDCVI
- IP cameras can achieve higher resolutions than 1080p and this will only increase in the future
- The PoE technology from an IP camera, makes it possible to send video and voltage via 1 utp cable
- An IPC is already a network camera so it can function, without using a recorder
- In many cases, it is super simple, to an IPC in an existing network
Combine your own complete camera set?
You have a business and do not quite get how you can put together a complete camera set, and don't know which security cameras you want to install?
Read our page " How to build my own camera set ".
HDCVI vs SDI demo
HDCVI vs IPC
View our category with HDCVI cameras!