This Article is About
surveillance system
camera pan
security cameras
video information
digital cameras
low quality
How Does A Surveillance System DVR Work?
Join 1000's of Authors at StreetArticles Today!

A DVR is a recording device for digital images that come from digital cameras. These images are stored on a hard drive in the DVR. This allows the user to playback what the camera recorded through a monitor, burn the images to a CD or connect the DVR to the Internet. You can review the DVR using your web browser from anywhere in the world. If you record using a PTZ camera (pan, tilt, and zoom) you can control the camera remotely over the Internet.

The security DVR or network DVR must not be confused with a television DVR or TiVo. The security DVR is more sophisticated and reliable than those for your television. This DVR is also made so that they are compatible with security cameras and computers and able to record from 4 to 16 cameras at the same time in a CCTV DVR configuration. They will allow you to review from one to all 16 cameras in real time or play back a previous recording. The latest video surveillance DVR is a standalone unit, meaning that all the required software is already installed in the DVR. Also by utilizing a hard drive you can go back and review a recording without having to re-wind. These recorders will allow you to freeze a frame, fast forward or reverse without any loss of tracking or streaking.

Being able to remotely view your office or home over the internet is one of the biggest advantages of video surveillance. Use of a low quality DVR or using software on your computer to connect to your cameras can create problems. With the computer controlled software or a low quality DVR you are susceptible to hacking or viruses. When setting up your video security system, you should choose a high quality stand alone DVR.

There are many advantages of a DVR Security system. You are able to control cameras remotely and the DVR can detect motion to turn cameras on and off, thus saving disk space and power. The video information is “stamped” meaning that the recoding has the time and date of each frame. Finally the security DVR is just that, more secure because all the software is loaded in the DVR and doesn’t rely on the computers operating system.

Previous technology for a video security system used a time lapse VCR. The disadvantages were limited recording time (usually a maximum of 8 hours) and the hassle of rewinding tapes. Another factor was the vulnerability of the tape itself, either getting jammed or deteriorating. Information such as time stamping was usually not available, and the fidelity of the video was poor. For prosecution, there is no better evidence than a time stamped video to present in court. The high quality video from a stand-alone DVR will help the police know who to look for.

A DVR can detect motion by looking at the videos pixels. The change in the pixels tells the camera there is motion. Due to the way the DVR screen is broken up into cells, the camera will not see things that are normally in motion such as a fan because not only do the pixels have to change, but adjoining cells must also have a change in pixels. The camera has nothing to do with motion sensing as this is accomplished by the DVR.

The components of a DVR Security System are the camera or cameras, stand-alone digital video recorder and monitor or computer with network capability. Cameras are connected to the stand alone DVR with either cables or wirelessly using a transmitter at the camera and a receiver to feed the DVR. Most DVRs have a quad or screen splitter built into them. This allows you to use one monitor to see as many as four cameras at the same time. The security DVR can be bypassed by a device known as a USB DVR which is a very economical device that connects the camera to a network capable computer. The disadvantage is that the USB DVR does not store any video or time stamp the video frames. This is useful for monitoring a location for vandalism or damage with a low cost system. The USB DVR allows you to watch your property in real time over the Internet from anywhere in the world.

Modern technology has developed a small one-channel DVR capable of being placed inside of a hidden camera. This small DVR records video on a memory card. Memory cards today can hold 16 GBs or more of information which will cover 24 to 48 hours of recorded video. If this DVR is capable of motion sensing than it could cover a much longer time period. The user simply goes and takes the card out of the hidden camera and reads the video on their computer.

A board camera and DVR can be placed in a common object such as a radio, clock or mirror. The hidden camera becomes a mobile device and can simply be placed in a room and plugged in. This is especially useful to catch internal theft in a small business or to use the hidden camera as a nanny cam.

To summarize, a stand-alone DVR is useful for controlling multiple cameras, obtaining high quality images with a time stamp, and storing this information for later use in recognition and prosecution. The DVR gives an extra layer of security by eliminating software based programs that are susceptible to being hacked or receiving a virus. A high quality DVR will allow motion sensing and remote controlling of a PTZ camera.


Street Talk

No comments present
You May Also Like
3 Tips to Make Office Moving A More Efficient Process In Los Angeles
If you’ve ever worked in an office, you know that office moving is an extremely difficult challenge. Not only does everything have to be organized and packed, but it has to be done in a quick manner, too. These three tips are designed to help you find an office moving…
By: Acclaimed Movers in  Business  >  Small Business   Jan 19, 2013  
0
  Likes: 0

Some Exciting Features In Videocon D2h You Didn’t Know
The mass consumption for digital TV services is touching new heights and so does the exciting features offered by all. Videocon d2h has again excelled the user expectations and introduced an extensive collection of interactive features. Also, the services have been recognised as the most promising brand in Asia. Besides…
By: comparedth.com in  Internet and Businesses Online  >  Ecommerce   Aug 01, 2014  
0
  Likes: 0

Ecommerce Web Design on A Budget
Ecommerce website design is not as costly or complex as you might imagine. However, choosing the right solution for your business can be confusing and intimidating for any business owner. With the great array of solutions that are available today, choosing a solution that is right for your business can…
By: Ron Jones in  Internet and Businesses Online  >  Ecommerce   Apr 16, 2012  
0
  Likes: 0

How A Website Can Increase Your Business Turnover?
For any business to thrive, it needs to have solid web vicinity on the web. The proverb of making a capable and trustworthy site outline is to make a tastefully satisfying, effectively safe and open site which includes the best business communications with the end clients. Plan a firm site…
By: juliet11 in  Internet and Businesses Online  >  Ecommerce   Jul 14, 2014  
0
  Likes: 0

Ecommerce is A Driving Force Of the Home Based Business
We'll assume that eCommerce means the buying and selling of goods through the Internet. Commerce is all about moving goods across the world, exchanging money. Every country depends on its people spending money to keep commerce growing, moving, changing hands. Troubles result when people refuse to spend money for the…
By: Don Monteith in  Internet and Businesses Online  >  Ecommerce   Dec 12, 2011  
0
  Likes: 0

A Terrific Way to Watch Free Wordpress Tutorials
In the huge environment of the internet there are but simply several major engines that could really get you attention to be deserving of utilizing them as a base for your blog or website. It's fine to use in the list such large titles as Joomla, Drupal and also last…
By: seom0nster in  Internet and Businesses Online  >  Ecommerce   Jan 27, 2014  
0
  Likes: 0

Things Your Web Designer May Not Always Tell You
If you are considering a new website for your brand or business, it is important that you sit back and ponder over a few essential objectives on your own. While your Opencart ecommerce solutions provider will be able to provide to you the right advice to create a technically correct…
By: Sanjeev Chaudhary in  Internet and Businesses Online  >  Ecommerce   Dec 26, 2013  
2
  Likes: 3

Stаrtіng An Eсоmmеrсе Website
Eсоmmеrсе іѕ аll уоu nееd to knоw аbоut doing buѕіnеѕѕ on thе internet. Yоu hаvе a variety оf business done through a vаrіеtу of websites, all selling fаѕt lіkе hоt cakes, аnd реорlе making handsome mоnеу асrоѕѕ thе соuntrіеѕ around thе world with this attribute E-Commerce. Of соurѕе ѕрасе wіll…
By: flexsin1 in  Internet and Businesses Online  >  Ecommerce   Dec 19, 2013  
0
  Likes: 0

Holiday Shipping Tips Which Help You Through the Rush
You may have hired the best Magento experts India to revamp your eCommerce website for the holidays, but simply bringing in the sales is not the end of the story. In fact, it is at this stage that you need to deliver your promise. Shipping can sometimes feel like the…
By: Sanjeev Chaudhary in  Internet and Businesses Online  >  Ecommerce   Dec 17, 2013  
0
  Likes: 0

Real And Legitimate Work From Home Business
With a work from home business making money in the sums of $1500 a day is not only practicable but being accomplished be average people just like you and me. How would you like to make the amount of your monthly paycheck in only a couple of weeks, how about…
By: vladimir1 in  Internet and Businesses Online  >  Ecommerce   Nov 28, 2011  
0
  Likes: 0

Sell stuff online for free?
Are you looking to sell stuff online for free? If you are then continue reading this article. Although selling items online for free can lead to bigger profits, it becomes harder to attract the kind of web traffic that you would like because of low visibility in the search engines…
By: Anthony Muzonzini in  Internet and Businesses Online  >  Ecommerce   Aug 16, 2011  
0
  Likes: 0

A few steps to Selling items over the internet
If you want to sell items over the internet, then you should have a look at some of the tips we have in this article. They contain some of the key fundamentals to having success selling stuff online. First of all, before you even start selling something online, you need…
By: Anthony Muzonzini in  Internet and Businesses Online  >  Ecommerce   Aug 09, 2011  
0
  Likes: 0

How to Make E Commerce Software Work Magic For You
Explore the magic of e commerce software. Learn how easily you can turn your little online business into a thriving dynamo of commerce. What does your software have to be able to do for you? Software suites are now available that: Generate targetted traffic for you. Furnish keywords that rank…
By: Octavien in  Internet and Businesses Online  >  Ecommerce   Jun 07, 2011  
2
  Likes: 1

Small Business Marketing And Ecommerce Website Designers
Ecommerce website designers play an extremely pivotal role in the success or failure of tens of millions of websites on the Internet today. The untold number of billions of dollars’ worth of commerce that is transacted daily across the Internet is a testament to the professionalism with which the many…
By: Dan McDaniel in  Internet and Businesses Online  >  Ecommerce   Mar 14, 2011  
0
  Likes: 0

Integrating E - commerce Into Your Website
It doesn’t matter if you are a small or a big business, but what matters is the profit you are making from your sales. In case you are not reaching your sales goals, then you should evaluate what your competitors are doing. Many businesses are now hiring professional web designers…
By: alexbarker in  Internet and Businesses Online  >  Ecommerce   Mar 27, 2014  
0
  Likes: 0

Article Views: 1862    Report this Article