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Digital Video Recorder
PC Based DVR
  4 Channel DVR
  8 Channel DVR
  16 Channel DVR
  32 Channel DVR
Standalone DVR
  4 Channel DVR
  8 Channel DVR
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Products »  Digital Video Recorder
Digital video recorder available in PC based card or Non PC based DVR Standalone. Designed in accordance to international quality norms, we offer premium quality DVR. This is a device that records video without videotape to a hard drive-based digital storage medium. The term includes stand-alone set-top boxes and software for personal computers which enables video capture and playback to and from disk. The other advantage being that we can also have the recording done using a DVR in the hard disk of the computer for up to 1 month or more depending on the requirement of the client.
Digital Video Recorder Card (PC based)
We at Avancar also offer premium quality DVR card, that is easy to install and operate PCI based digital video recorder. This unit records live video data onto the hard drive or network drive and also include the software for setup, local, and remote viewing and documentation.
Designed in accordance to international quality standards, it is provided with smart search capability, which allows one to highlight one area of a captured image and look for changes just to that area. Our low cost DVD card gives all the abilities that one would want from viewing, recording, remote internet view. It is typically one circuit board with simple software burned into the chip and is extremely stable and reliable since they contain fewer parts. The software is often written in basic machine code or Linux code which tends to be more stable than Windows software.
DVR Standalone (Non PC based)
Provided with 4-16 sensor input and 1-4 alarm output, we offer optimum quality DVR standalone that is featured with schedule and sensor detection recording and have the ability to record in individual video channel format or quad format. It record video input from the Security Camera/CCTV connected to this Unit and also provide rock-solid, easy-to-use performance which makes it ideal for multi-camera law enforcement, industrial, commercial, and individual applications.
Remote Surveillance System
We are also proud to state that we are one of the few acclaimed names to offer remote Surveillance system through DVR standalone or DVR card which one can convert computer into a Digital Video Recorder. This unit allows one to record and display multiple cameras simultaneously from a remote location to the camera site. This unit also helps in the independent configuration of each camera to activate recording when the motion is detected.
Also, with the help of IP-cameras, we can directly configure static IP address in camera & can view the location remotely anywhere in the world.
Remote monitoring can be avail through internet in any part of the world by D.V.R.(YOU WILL BE ABLE TO WATCH LIVE AND RECORDED CCTV VISIONS THROUGH NET FROM ANY PART OF THE WORLD
All DVRs are definitely not made equal! There are several factors that are critical to consider when purchasing a DVR, especially when comparing price. The most important factors to look at are the number of cameras supported, frames per second (fps), hard drive space, network connection / remote viewing capability, motion detection, scheduling, and ability to burn video & audio to a CD.
You need to be especially careful when purchasing embedded DVRs. Some do not have even basic features such as remote viewing and CD burning and some have very little hard drive space. At Discount Security Cameras we only offer DVRs that meet these basic requirements.
The security digital video recorder that will work best for your application will depend on several factors including the number of cameras that you will have and the frames per second that you need. When determining the number of camera inputs, it is important to consider future needs as well as current needs.
The frames per second (fps) relates to how many pictures it will record in a second. Real time recording is about 30 fps on each camera. To calculate the fps per camera take the total fps in the system and divide it by the number of video inputs. For example, a 60 fps digital video recorder with 4 video inputs would result in about 15 fps per camera. Real time recording is 30fps. The technology has finally gotten to the point now where real time recording is affordable. If you are recording cash registers or something similar then you should invest in real time recording. If not, then a lesser recording speed should suffice. You can still see a clear picture even though it will have a little hesitation or jerkiness on playback.
The amount of hard drive space is very important because it will limit how many days of recording you can store before the system has to start recording over the oldest video. The general rule of thumb is that each camera will use about 2 to 3 gigabytes (gigs) of hard drive space a day. Real Time and Embedded DVRs tend to use about twice as much as that per day. So, for example a PC-Based 4 camera 60fps system with 120 gigs of hard drive space will use about 8 to 12 gig total per day, giving you from 10 to 15 days of recordings before it needs to start writing over the old video. Some embedded DVRs that our competitors offer only have 80 gigs of hard drive space - this is only going to let you store a few days of video.
 Some features are going to affect the amount of hard drive space used. One important feature is scheduling. There may be certain cameras that you only want to record during working or daylight hours, the scheduling feature is what you need to set this up. Another very important feature is motion detection. If you can set up your recorder to only record when motion is detected this will significantly extend your recording life.
Having a CD burner built into the machine is a very important feature because if a problem is detected you need to be able to save it on a CD (typically in AVI format) for others to be able to see it. If there is no CD burner on the machine then make sure you have network ability so you can connect to it from another machine so you can burn video that way.
Other features you should look for are the ability to view the cameras remotely (more on this below), easy and comprehensive search capabilities (check out our 'Smart Search' technology), and audio support. The user interface should be easy to operate. All of our PC-based systems come standard with these options. 
What is the difference between a PC-based DVR and an Embedded DVR(standalone)?
A PC-based digital video recorder is basically a personal computer that has been modified with hardware and software to work as a DVR. An embedded digital video recorder is a machine that has been manufactured specifically to work as a DVR. In embedded DVRs there is typically one circuit board with simple software burned into the chip. There are advantages and disadvantages to each type of DVR.
The advantages of an embedded digital video recorder are that they are extremely stable and reliable since they contain fewer parts. The software is often written in basic machine code or Linux code which tends to be more stable than Windows software. Also the picture that you get on the monitor usually looks better (especially when viewed full screen) than PC-based DVRs because there is less compression. The disadvantages are that they have less option. Most do not have remote viewing capability (ours do). They generally have slower recording rates (we have some of the fastest available). Sometimes embedded DVRS do not have a CD burner (ours do) so the only way to get video out of the machine is to copy it via the LAN (if it has the connectivity) to another computer or to hook up a VCR to it. Since they generally have less compression they use more hard drive space so you can fit fewer days of recorded video on it. And you do not have as many options to upgrade the hard drive space as the PC-based systems (some do not allow you to upgrade the hard drive space at all).
The advantages of the PC-based digital video recorders are that you have many more features and options available on the units. For example, some of the options you get on the PC based machines that you don't get on the embedded is Smart Search (see below), and the ability to set many options like motion detection, pre and post recording frames, and compression options on a per camera basis. You can completely control the PC-based DVR remotely via the supplied software. The software is easily upgradeable when new enhancements are made (upgrades are available on our web site for free). You interact with the software via keyboard and mouse so its much easier to use (with the embedded systems you set them up with buttons like a VCR). A CD Rom burner is included so storing video off of the unit is easy. Compression is usually better so it uses less hard drive space and you can customize how much hard drive space you want on the unit.
How does a CCTV digital video recorder work?
A CCTV digital video recorder (or "DVR" for short) is essentially a computer that saves security video images to a hard drive. Most security cameras in use today capture an analog picture. The DVR converts the analog signal to digital and then compresses it. Digital compression results in a much better picture than analog compression and its more efficient.
Many cameras can be connected to one DVR. DVRs generally come with 4, 8, 16, or 32 camera inputs. The DVR will allow you to view all of these images at once or one at a time, and all of the video is saved to the hard drive. Additional switches, quads, or multiplexors are not required.
Are security digital video recorders hard to install?
Not at all. You simply plug the cameras into the back of the unit. For the PC-based: Plug in the power, monitor, keyboard and mouse - just like a regular computer. The DVR is setup using the intuitive software that comes with the system.
What comes with the DVR?
 Our PC-based DVRs come standard with an 120 gig hard drive (except for the 32 channel system which comes with a 250 gig hard drive). They also include the software (for setup, local, and remote viewing), power cord, keyboard, mouse, and documentation. You just need to add the cameras, whatever cable you need, and a standard computer monitor. Also, we have full time on-site technical support available at no additional cost.
Why doesn't the computer monitor come with the Digital Video Recorder?
We don't supply the computer monitor with the DVR because frankly you can get one cheaper and easier locally. Large computer stores such as Best Buy or CompUSA sell these monitors practically at cost. And due to their heavy weight, they are very expensive to ship (and subject to damage). Also, we found that many of our customers have spare computer monitors available.
How do I see pictures from a remote site?
  You can view the camera video over the internet using a modem which is slow but can display 1 or 2 frames every 5 seconds. Better is a DSL or cable modem connection which can generally display 1 frame per second. When viewing remotely, the refresh rate is restricted by the communications medium (your internet connection speed). When viewing or playing back locally, the display is dependent of the unit's frame rate (fps).
What is 'Smart Search'?
 Our PC-based DVRs come standard with smart search capability. This allows you to highlight one area of a captured image and look for changes just to that area. For example, if an item is stolen off of a counter... you can go to a moment in the video where the item is still on the counter, then highlight the area around the item and search automatically through the video for the moment in time when that particular area changes, that is precisely when the item is removed and then view that part of the video. Pretty slick!
Should I purchase the card and software and build my own digital video recorder or buy one pre-built?
It is much better to purchase a DVR system pre-built than to build one yourself. One reason is because the pre-built systems have more features and options than the cards that you can buy and install yourself. There are many compatibility issues with DVR cards and related software. They are very sensitive to the type of motherboard in the computer, the cpu, the memory, even the video card makes a difference! We had to test many different configurations to find one that worked reliably. You also don't want to be running any other software on the computer that your DVR is running on so you need a dedicated computer anyway. We have had so many customers call us that have had problems installing cards in their own systems that we won't even sell the cards separately anymore.
How much hard drive space will I need?  
There are many variables that factor into how much hard drive space is used. The general rule of thumb is that each camera will use about 2 gig of space per day. So for example, if you have an 8 camera DVR you will use in the area of 16 gigs of hard drive space per day. If you are using motion detection the hard drive usage will likely be less (especially if there is little movement on each camera). The actual amount of hard drive space used varies widely and depends to a large extent on how much movement there is on the cameras. For example, a fast food restaurant (with a lot of activity) will use a lot more hard drive space per day than an office with a few employees. This is due to the way that the video is compressed for storage.
As mentioned above, the embedded DVRs use much more hard drive space than the PC-based units, perhaps twice as much per camera, but again it varies from site to site. Also, on some of the embedded DVRs you can reduce the recording frame rate which will reduce the amount of hard drive space used (as well as the quality of the video).
When the hard drive space is filled up, it will start over-writing the oldest pre-recorded video. Each of our PC-based DVRs comes standard with a read/write CD-Rom for saving video permanently.
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