HDCVI Security Camera

What is HDCVI technology?

Video surveillance is an integral part of security for countless organizations worldwide. Yet while the capabilities of these systems continue to improve, such as higher resolution and intelligent analytics, businesses are often restricted in the system design process by older infrastructure that doesn’t support the latest technologies. Unfortunately, high system design costs, technical challenges and other factors impede many companies’ efforts to upgrade their surveillance systems.

Enter High Definition Composite Video Interface (HDCVI) technology. HDCVI is a video standard that enables users to transmit HD video over existing coaxial cable infrastructure—ideal for lowering costs and maximizing return on investment.

First introduced by Dahua in 2012, HDCVI’s capabilities have been expanded over the years. The current standard, HDCVI 3.0, has a few key attributes that make it well-suited for a broad range of vertical markets.

4K / Ultra HD capability

HDCVI 3.0 is the first technology to provide up to 4K resolution in systems based on a coax infrastructure. It also boasts Starlight technology, allowing for crisp, clear, images in near-darkness, down to 0.008 lux. Wide Dynamic Range (WDR) of 120dB to 140dB, depending on the model, further supports the camera in challenging lighting environments.

Video technology compatibility

HDCVI 3.0 pentabrid recorders are compatible with all five of the primary video technologies offered in video surveillance: standard analog, AHD, IP, HDCVI, and HDTVI. Because it is backwards compatible, HDCVI 3.0 enables use of existing standard definition analog cameras while also receiving input from IP cameras. To that end, HDCVI 3.0 stands out for its ability to integrate several technologies within one system.

Digital video recorders (DVRs) using HDCVI 3.0 can serve as an access point for multiple security services, and integration is planned with external passive devices such as alarms, infrared sensors, and others. Video, audio and control signals and power are combined in a single cable. Both coaxial cable or unshielded twisted pair (UTP) cable can be used, and wireless transmission capability is currently being developed. Third-party integration with other network video recorders and video management software solutions is made possible by ONVIF Profile S conformance.

Intelligent feature support

Intelligent features – e.g., smart tracking, face recognition, people counting, heat mapping, and smart scene adaption – are supported by HDCVI 3.0. As a result, users can enjoy greater system functionality than would otherwise be possible on an analog system.

Some other intelligent features are intrusion detection, virtual tripwire, detection of missing and abandoned objects, and scene change. Because system design can be simplified and rip-and-replace costs are eliminated through HDCVI 3.0, these features can be enjoyed at with a lower overall investment.

HDCVI Cameras :- 

HDCVI cameras are the latest high definition cameras in the CCTV industry that support resolutions up to 2 Megapixels. The most important reason you should consider HDCVI cameras as part of your system is that they work over existing RG59 coax cable. If you already have good quality coax cable, i.e the kind that you get in a spool or roll of cable, then you can save yourself a lot headache and expense when upgrading your CCTV camera system to high definition instead of going with IP. We prefer HDCVI over HS-SDI, the other type of camera technology that allows for megapixel video over coax. HDCVI has proven to be reliable and free of the hassles of networking cameras which is a common complaint with IP cameras, and free of signal and camera issues which is a common problem with HD-SDI cameras. In the next year, we foresee HDCVI cameras gaining a larger market share of the megapixel CCTV camera market as they are low in cost, free of weird camera problems, and come in so many varieties like analog.

What are the advantages of an HDCVI CCTV system?

HDCVI CCTV offers HD recording at a lower cost   : 

The biggest advantage with HDCVI CCTV technology is that it offers high definition recording with the same installation advantages of conventional analog CCTV solutions. This generally means a lower cost installation and no network issues.

HDCVI cameras installed on standard coax cable : 

HDCVI cameras offer up to 2 megapixel recording resolution (1920×1080) but are installed using standard coax cable.

This means if you have an existing analog CCTV system the HDCVI cameras can simply replace your old analog cameras. It also means long cable runs over 100m are possible and a lower overall cabling cost when compared with IP CCTV. This can offer significant savings for large commercial buildings or multi-building sites.

Because and HDCVI system is not attached to the business or home network it won’t be at
 the mercy of network issues. Large file sizes, limitations to the bandwidth, viruses or too
many devices trying to use the network (congestion) are just some of the challenges facing
the installation and ongoing maintenance of an IP system.

HDCVI DVRs are only compatible with HDCVI CCTV cameras. Although HDCVI uses the same BNC type locking connectors and the same cable standard analog and HDCVI equipment is not interchangeable.

If you have an existing analog system the cables and connectors will most likely be
compatible with an HDCVI DVR. This means you can upgrade your system to HDCVI high definition cameras and recorder without having to re-cable or buy expensive adapters.

View footage in true real time

Because the image from a HDCVI CCTV camera is processed and compressed at the DVR (not the camera) it can be viewed live with no delay. IP cameras can experience ‘lag’ for up
to 2-seconds.

What is HDCVI and How to Connect HDCVI Camera and HDCVI DVR-Here is connection video

HD-CVI vs. HD-TVI 

HDTVI (High Definition Transport Video Interface) 

HDCVI (High Definition Composite Video Interface)

When it comes to the “New” HD over coaxial market, there are a couple, some say a few, choices on the market.  The 2 major players in the HD over coaxial market are HDTVI (High Definition Transport Video Interface)  and HD-CVI (High Definition Coaxial Video Interface).  There is a third lesser known technology, simply called AHD or analog High Definition.  Now you are probably sitting there saying to yourself, WTF is the difference between these technologies and which one is for me.  I will try to hopefully help give you some differences and benefits of the technologies

HD-TVI technology was created by a company called Techpoint in 2012 and backed by Hikvision around the same time.  This was created by a third party company to compete 
with a technology coming out from the factory Dahua, who was about to release HDCVI.  There have been rumors out there that someone planted spies inside of Dahua that learned what was coming and once pulled out they created the company called Techpoint.  But, I 
don’t think any of it will ever be confirmed.  Hikvision is the world’s largest surveillance manufacturer and backed by the Chinese Government and has backed Techpoint in this endeavor. It has brought us one of the biggest revolutions to the CCTV (closed circuit television) market since the creation of IP, internet protocol, cameras.

HDTVI like HDCVI both come from the same principles created by the TV industry with the government back mandate for a Higher Definition video transmission of all broadcasting. 
This spawned a surveillance type known as HD-SDI.  In essence, SDI had major limitations with regards to the distance it could be transmitted.  This limitation was eradicated with the 
creation of the two new technologies.  HDTVI is able to send 1080p video approximately one thousand feet, whereas HDCVI can transmit 720p video upwards of sixteen hundred feet and 1080p video around the same distance (or as quoted by Dahua – three hundred meters). There are some other similarities and then again a few differences.  I will go into and touch 
on the important, or better yet, more necessary information to know so you can have a better understanding of the two technologies.

With HDTVI recorders, all of them from their simple units up to their largest unit are capable 
of handling analog cameras, HDTVI cameras, Hikvision IP cameras and Prime IP/HDTVI cameras.  Whereas HDCVI recorders from the base model all the way up to 16 channel recorders (also known as Tribrid DVRs) can also handle analog cameras, HDCVI cameras, Dahua IP cameras, ONVIF IP cameras, Prime IP/HDCVI cameras and Elite IP/HDCVI cameras.  As you can see, both of the technologies recorders can handle three different technologies in one recorder making them Tribrid DVR’s.  There are Tribrid recorders that can only handle their specific technology as well as the two other technologies.  The major difference between the two technologies recorders are the Dahua recorders can also handle other brands IP cameras and the Hikvision TVI recorders can only handle Hikvision IP cameras.

Now both companies offer some basic camera models to go along with their technologies. 
 For example, you can get a fixed or varifocal lens dome or bullet option from both platforms 
as well as a Pan Tilt Zoom.  With HDTVI, there has been a slower development of a variety 
of camera models available from the major player.  Dahua has a very wide product line available and backed by the factory.  Now, both technologies have had third party companies that have stepped up to provide the wide variety of product lines that the factories have neglected.  I personally like the standard housings from both factories, but am also a huge 
fan of some of the third party product offerings as they typically have a wider variety of colors and mounting options that the big boys have neglected to adopt.

I have always been a fan of third party cameras and typically find that you will get more 
options for a lower price point than you find from the major players.  Now the major players 
will typically have stronger warranties than the smaller factories, but bang for buck the smaller factories give you a damn good product.  I personally like the Techpro Series cameras for both HDCVI and HDTVI for the options that they offer and some of the form factors are more appealing in my opinion.  I have had and installed many of systems over the years, as I was 
an installer and integrator for several of years before coming on board.  I have found these newer technologies are as simple to use as the original Closed Circuit Television systems, 
with the major advantage of much higher definition and quality.

Conclusion

As you can see, there really is not much of a difference between these two types of technologies, outside of the major players in the industry backing them.  I have personally used both of their interfaces, applications for mobile devices, and CMS software and find 
them on a fairly level playing field.  Some of the major differences between them come in the Graphical User Interface or GUI for short.  For a first time user, they are both rather easy to 
get through, allthough I believe HDCVI has a slightly easier to use interface for the novice in the surveillance world.  The reason is that the interface has a better simpler layout than you find in the HDTVI system.  HDTVI has things nestled under different tabs, very similar to what HDCVI did in the beginning until the addition of the “Blue” user interface experience. I guess the bottom line on this is… if you are starting from scratch either system will work for you, or 
if you are doing an upgrade from an existing analog system either will work.  Now if you have used Techpro Security Products DVRs in the past you would want to stick with the Elite line, but if you are starting new, the Prime line would be a good place to look at as it is a very nice and solid platform and generally a little less money.

HD-TVI (High Definition Transport Video Interface) are some of the newest and most affordable cameras on the market. They have a very sharp image, up to 1080p, in real time, and they are very easy to install. This camera combines high resolution with fast transmission. The cameras are affordable, with the costs varying depending on a few factors such as whether you need indoor or outdoor cameras.

HD-CVI (High Definition Composite Video Interface) cameras are similar in
many ways to HD-TVI in their resolution and speed, but tend to be a bit more expensive, and are only made by one manufacturer – DAHUA, a Chinese company. These cameras are also high speed, high-def, and user-friendly, although they do not produce as crisp of an image as HD-TVI in lower lighting.

When it comes to the “New” HD over coaxial market, there are a couple, some say a few, choices on the market.  The 2 major players in the HD over coaxial market are HDTVI (High Definition Transport Video Interface)  and HD-CVI (High Definition Coaxial Video Interface). There is a third lesser known technology, simply called AHD or analog High Definition.  Now you are probably sitting there saying to yourself, WTF is the difference between these technologies and which one is for me.  I will try to hopefully help give you some differences and benefits of the technologies.

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