Posts Tagged ‘ Security Camera Systems ’

4 Camera System

Monday, November 14th, 2011

A 4 camera security system is the perfect solution if you need security or surveillance monitoring in a small perimeter or area.  Electronic technological improvements have not only resulted in high quality equipment designed for this purpose, but have made the cameras capable of providing images in total darkness by using infrared radiation (IR) all at an economical price.

4 camera IR security systems normally consist of four cameras, a processor/capture card/CODEC application, a monitor and a digital video recorder or DVR.  The cameras send their video in the form of electronic data to a processor or capture card that interprets the data and creates a digital file that can be read and/or saved for future use.  The CODEC application reads the digital video file that is created and applies COmpression/DECompression (hence the name CODEC) to make the file much smaller and therefore easier to handle and store while maintaining high quality characteristics of the images or video.  The file is then available for live or real-time viewing on a monitor.  At the same time the file is normally saved on a DVR for future use.  The DVR is much like the hard drive on a personal computer.

There are several types of cameras available; however IR cameras are specially designed for “seeing” in total darkness.   Digital video cameras produce images by using a special electronic light sensor called a Charged Coupled Device (CCD) or a Complimentary Metal-Oxide Semiconductor or CMOS.  CCDs are particularly useful for infrared applications because of the sensitivity of the electronic chip.

Modern technological advances in design of CCDs have yielded a sensor that is extremely sensitive to light.  This means that most CCDs can produce high quality video in very low light conditions such as the available light on a moonlit night.  However, a 4 camera IR security system needs to go one step further; it needs to be able to produce high quality video in total darkness environments.  Fortunately, most CCDs are inherently sensitive to IR light radiation.  Therefore the CCD makes an excellent choice as an image sensor for IR cameras.

The cameras in a 4 camera IR security system can produce high quality color video when there is some available visible light.  Under infrared conditions, the camera produces a monochromatic or black and white video image.  These cameras have IR Light Emitting Diodes or LEDs that surround the camera lens.  The LEDs emit IR light that is invisible to the human eye but is visible to the CCD.  These LEDs act as invisible spot lights or flood lights for the CCD, illuminating the target area images with IR light.  Generally, the more IR LEDs surrounding the lens, the greater the range and field of view for the IR video.

There are many useful applications for a 4 camera IR security system.  These systems provide excellent night time security coverage for outdoor building and property perimeters.  In addition to perimeter coverage, IR cameras can be placed so that they can monitor areas that are normally not well lit in the evenings.  They have both commercial and residential applications for this purpose.

Indoors, 4 camera IR security systems can be used to provide security and surveillance monitoring for rooms that are not illuminated.  Stores, offices, and businesses can all make use of IR security systems to provide the utmost security without the expense of leaving several building lights on.  Residentially, nurseries or baby’s rooms can be monitored in the evening without disturbing the infant with unnecessary light.  Rooms inside homes can be monitored for security purposes without the need for lights.  Potential intruders can be monitored without their knowledge since the IR illumination used by the camera is invisible to the human eye.

Recent technology also allows 4 camera IR security systems to be networked using Internet Protocol (IP).   This means that the system can be connected to the internet so that monitoring and recording can be accomplished anywhere there is internet access.  In addition, this also means that via this network 24/7 monitoring can easily be provided by monitoring service companies.

Innovative technology can now provide you with a 4 camera IR security system that can be used for in nearly any environment for any application at affordable prices.  The versatility of these systems not only provides for wide applications but for easy accessibility for monitoring from remote locations.  What’s more, 4 camera IR security systems require no additional requirements than standard camera security systems.


Remote Video Surveillance Cameras

Written By:
Monday, October 17th, 2011

Remote video surveillance cameras can be viewed from anywhere. They store what they have monitored in a video file, and save that file to a hard drive in a personal computer or Web server. The video feed from these remote security video cameras can then be accessed by a laptop computer or a personal communication device, such as a cell phone or a PDA. Most remote security cameras come with some software that allows these devices to view the video file, such as a media player or an attachment to a Web browser. Some remote security cameras include an option that will alert the user via email if the camera detects activity.

Some remote video surveillance cameras have the option of being remote-controlled by a user. This is usually known as the Pan/Tilt/Zoom or PTZ function. This function allows cameras to monitor a wider range of space than they normally could. Dome cameras take advantage of this function when they become remote security cameras. Their one-way vision glass keeps criminals confused about where the remote security camera is viewing, causing uncertainty in addition to providing the camera with protection.

Remote video surveillance cameras are particularly useful for homeowners, who may not be able to monitor security cameras full-time at their house.

Network IP Security Camera systems utilize an existing computer network infrastructure to provide secure video surveillance that is accessible from anywhere in the world via a secure Internet connection. Security Camera King offers a wide selection of network IP security camera systems that feature high definition resolution, and are fully customizable for your application. Our team of network IP security experts will configure a video surveillance system to your precise needs, to ensure that your network IP security camera system provides you with the most advanced and best possible IP video surveillance solution.

IP security cameras can be connected directly to a network with an Ethernet connection (Cat-5). Our IP cameras have built in video servers so that surveillance video can be viewed directly from the camera over the internet using Internet Explorer.  There is no need for a DVR or video capture card in order to broadcast the surveillance video over the Internet. Our Digital Video Recorders or DVRS turn any CCTV camera (with a standard BNC output) into an IP based network camera (Ethernet output).  The same web browser screen and controls are used for both of these great IP surveillance products.  Our DVRs (and therefore the cameras that are connected to them) are fully accessible using and 3G or 4G smartphone as well.

Network video servers, also known as IP video servers, turn any CCTV camera (with a standard BNC output) into a network security camera (Ethernet/CAT-5 output).  The purpose of a network video server is to translate the analog signal from CCTV cameras into a digital and IP based video stream capable of being broadcast over an IP network.  IP video servers have built in software that allows users to connect to their cameras through a standard Internet Explorer web browser.  Some video servers also allow you to connect to your camera using NVR software (network video recording).  Either way, the Internet is a major player when it comes to remote video surveillance cameras.

Another type of remote video surveillance camera that we should mention here is the baby monitor.  Just about all baby monitors are remote since that is the major idea behind them in the first place.   Baby cameras usually do not contain DVRS.  There generally is no need to record the child’s actions as baby monitoring is usually done during real-time.  However, in place of a DVR these units normally come with a small LCD screen monitor that can be held in the hand and contains its own receiver to pick up the signal coming from the camera in the baby’s room.

There are also remote video surveillance cameras that are designed totally for covert used.  For example Security Camera King offers hidden or disguised wireless cameras designed specifically for covert applications.  For example we offer a button cam that is worn on the individual.  While this camera may not seem like a remote camera it often has an antenna that transmits back to a home base or the DVR .

If you have specific questions regarding remote video surveillance cameras or  are considering purchasing one, contact one of our security experts and they will be glad to assist you.  You can contact them by Live Chat or Telephone.


PTZ Camera Security

Written By:
Sunday, October 16th, 2011

Do you need a pan, tilt and zoom camera to complete your security system. Pan, tilt and zoom cameras can be an important security tool in a variety of situations. They can be extremely useful in the home, office and in retail establishments. It is important to consider the various options before ultimately making a final decision.

PTZ Cameras in the Home

For the homeowner, these cameras, also known as PTZ cameras, offer the ability to see different parts of a room without ever being detected. This is a great advantage for homeowners who have employees working in their homes. By simply moving a joystick at a remote location, perhaps your office, it is possible to observe all that is going on in a room. The pan will allow you to move the camera back and forth to get the widest available view. The tilt will allow you to move the camera up and down to again get the widest possible view. Once you find action that interests you, then you can use the zoom to get in close to that action.

PTZ Cameras in the Office

The PTZ camera has great applications in the office. The camera can be used to check up on employees to make sure they are not stealing company time. The camera can be used to focus on one particular area of a room or the whole room. Just like at home, once something has your attention, it is easy to zoom into the details of the scene. In the office, they can be very useful in allowing authorized employees and visitors into the building. They can also be useful in monitoring obscure locations with in the office building.

PTZ Cameras in Retail Establishments

The PTZ camera has great applications in retail establishments. These cameras are the best for apprehending evidence against potential shoplifters, as the action never needs to leave the scene. It is easy to pan and tilt under obstacles that may be in the way of traditional security cameras. Images recorded from PTZ cameras make powerful court evidence.

PTZ Camera Features

PTZ cameras come with a variety of features. Each camera will offer different feature packages so understanding what to look for will allow you to evaluate which features are the most important to you.

Optical Connections

Some PTZ cameras rely on a sliding metal-to-metal contact to move the cameras. This can cause problems with the contact wearing out. It can also cause dust to build up in the sliding piece and the camera will not pan, tilt and zoom correctly. Even when working correctly, the sliding piece can be very noisy alerting thieves to the fact that they are being photographed.

Other PTZ cameras rely on an optical connection. This is an advantage because there are no moving parts. Instead, the camera uses a light beam to transfer the photo to video. This allows the camera to operate silently. It also greatly enhances the reliability of the PTZ camera.

Cost of Monitoring

PTZ cameras can be left on all the time. However, as with any security camera, the camera is only as good as the monitoring of the camera. Monitoring the camera 24 hours a day, 7 days a week can be very expensive. Considering the cost of monitoring before purchasing a PTZ camera will help you avoid surprises after you have installed the camera.

Automatic Motion Detection

These PTZ cameras can be set so that the camera turns on when motion is detected in a given area. It can also be set to sound an alarm when motion is detected for a certain length of time. The camera can also be set to turn on a video recorder when certain criteria occur. Other systems will sound an alert, so that the person monitoring the person will know that they need to pay attention. Those purchasing PTZ cameras need to evaluate how the camera will be used and if motion is detected, then what they want the system to do.

Dynamic Range

PTZ cameras have varying dynamic ranges. Look for a camera that has a dynamic range in the range of 128 times that of a normal digital camera. The dynamic range is especially important when lighting is not at its best. Many security cameras have trouble adjusting to harsh lighting conditions. Other security cameras have trouble adjusting to bright light coming into a room from the outside. Still other security system cameras have trouble adjusting to low light conditions.

The very best PTZ camera will capture the lightest parts of a scene in one image and simultaneously capture the darkest parts of a scene in another image. The two images are then instantly combined into a single photo. These cameras are expensive, so the cost of such a camera must be considered.

Digital Contrast Correction

Another great feature on some PTZ cameras is automatic digital contrast correction. The advantage of advanced digital contrast correction is that it automatically provides great definition and balance in the gray scale. Great gray color is the hardest for any black and white security camera to capture and does much to add to the crispness of the overall image.
Auto Image Stabilization

Another feature offered on many PTZ cameras is auto image stabilization. Since this camera is meant to be tilted, panned and zoomed, it is often hard to get a fluid image that easily follows the motion. With auto image stabilization, the person monitoring the system will see an image that is easy to follow. This auto image stabilization is especially important if the camera will be installed in areas where the wind will blow the camera or the camera will be subject to vibrations.

Scene Change Detection Alarm

Some PTZ cameras are equipped with a scene change detection alarm. If the cameras view becomes blocked, then the camera sounds an alarm. Remember that this may be something accidently getting in the camera view. It can also be someone trying to disable the image from the camera.

Auto Tracking

A great feature on some PTZ cameras is auto tracking. When cameras are equipped with auto tracking, the camera follows the action. This can be both an advantage and a disadvantage. The advantage is that most of the time the camera will choose the right object to follow. Occasionally, however, the camera will choose the wrong item and important details can be lost from the scene.

Adaptive Digital Noise Reduction

When a moving object is being tracked, noise will often appear in the photo. This noise means that the image is not as sharp as the viewer had hoped for. Adaptive digital noise reduction will help to minimize the noise in an image, assuring a crisp image. Noise is particularly a problem when the camera is zoomed in a lot.


Security cameras rely on bandwidth. All security cameras must use this bandwidth to transfer the images to the recorder. Security cameras have various amounts of bandwidth. The higher the bandwidth the better the camera will operate. However, bandwidth can also be expensive. This is an individual decision that must be carefully weighed.


As the name implies pan, tilt and zoom cameras allow users to zoom into a scene. Look for a camera that has an optical zoom number close to 30. Look for a PTZ camera that has an electronic zoom close to 10 times. The more zoom the camera has, the higher the price. Often, when too much zoom is used, the clarity of the image suffers. For some users, the answer lies in buying a PTZ camera with a lower zoom and to install more cameras. Combined the optical zoom and the electronic zoom should offer magnification over 200.

Low Light Sensitivity

Some PTZ cameras are equipped with a better ability to take images in low light than others. Consider where you will place your camera to determine if this is an important option for you. If you will be taking photos in a dark room, then this is an important option. If you plan to use the camera to protect your property outside this may also be an important option.

Digital Flip

Panning the camera to directly under the camera proves difficult for some models. To eliminate this problem look for a camera that has digital flip. The camera will then take the image upside down, but automatically flip the photo before the monitor sees it.

Image Masking

In some areas, it is important to take images only on your property. If this is an issue, look for a PTZ camera that offers image masking. This allows parts of the image that you do not have the right to photograph to be blocked from view.

PTZ cameras come with many options. Weigh each component carefully to decide what the best option is for your home, office or retail establishment. Each added feature may increase the value of evidence that can be obtained from the PTZ camera. Making informed decisions based on knowledge will allow you to provide the best solution to enhance your security system. Contact us for more information at


Complete Security Camera Systems

Thursday, September 8th, 2011

Most vendors do not want to sell you complete security camera systems.  They prefer to sell you the system, but they want to sell you each individual component separately or they bundle products that may be cheap in price but they are also cheap in quality.  Not Security Camera King.  We prefer to sell complete security camera systems, which is everything but the monitor in one packaged bundle.

When you purchase a complete security camera system from Security Camera King we will sell you HIGH quality bundled packages that include the cameras, the Digital Video Recorder or DVR, the cables and their connectors.  We do not sell the monitor in our bundled systems because so many people do not require it these days since customers have monitors of their own (personal computer, LCD Flat screen TV, etc.).  Not only that, but after the system is setup it doesn’t even require a monitor to run.

In addition, when you purchase a complete security camera system from Security Camera King, you have the option of upgrading most of your components and even your component’s parts!  Some upgrades may cost an additional fee and some our free.  For example, if you purchase a system but need a special type of camera like a Pan-Tilt-Zoom or PTZ, you can add it to your system for an additional fee.  Also, if you think you may want a larger Hard Disk Drive or HDD to store your video on, you can upgrade to greater sizes too.

Security Camera King’s complete security camera systems are sold by two different criteria.  The first is the number of channels and the second is the type of DVR you want to run your system.

Systems are sold as 4, 8, 16, and 32 channels (camera inputs).  They are also sold based on one of our four featured DVRs; the Elite-Mini Economy Series, the Elite Mini, the Elite, and the Ultimate series DVRs.  You can also design your own system and have complete control over just about every component in the system.

The Elite-mini Economy series complete security camera systems have many of the features that the more expensive units contain with the major difference being that there is no available hookup for a PTZ camera or for HDMI video output.  This is our entry level DVR and system and we sell it at a fantastic price.

The Elite Mini DVR is basically similar to the ELite-mini Economy however it does have and HDMI output and supports 1080p high definition.  It does not support a CD/DVD burner.

The Elite DVR complete security camera systems are installed by many high quality security camera companies.  This is an Enterprise level H.264 (CODEC) real-time DVR that supports multiple Hard Disk Drives or HDDs and also has enough room for a CD/DVD burner.

The last DVR/System isn’t called the “Ultimate” for nothing.   This DVR records in real-time video at 4 times the resolution of any other standalone DVR available in the industry today.  This DVR can record in D1 quality video in real-time on all channels; now that’s power!  We feel the Ultimate DVR and the Ultimate DVR System are the best quality DVR and system available in the industry, hence the name “Ultimate.”

In addition to high-quality latest-technology based systems we also have the most elaborate support system for installing your own complete security camera system.  We can help you design your system, install your system, and get it up and running.  In addition to our live security expert support we also have hundreds of knowledge based articles and instructional videos.

So if your looking for a complete security camera system, contact one of our security experts today either via on-line “Live Chat” or by telephone at 866-573-8878 Monday through Friday from 9AM to 6PM EST.


TVL Camera

Friday, July 1st, 2011

Digital video security cameras come in all shapes and sizes and with different degrees of resolution, often using the phrase “TVL Camera” such as a 550 TVL Camera. What does TVL mean and how does it relate to digital video security cameras?  We’ll answer that question and more in the following article.

First, It will make things much easier to understand if you know a little security camera industry history. Full security camera systems have been around for several years now, however not until relatively recently have the systems been based on binary (digital) data instead of its older analog data.

In the old days, (a few years back), security cameras were in a closed loop with an analog recorder, such as the older VHS or Betamax video recorders. Recorded security footage was either recorded on a looping video tape, so that when the tape reached its end it would start at the beginning recording new material over the previously recorded older data. Another method was to monitor the Video Recorder closely (and constantly) and eject the current tape when full and insert another blank tape (probably the least favorable of any of the methods).

The point here being that video security systems have been around for a long time, doing most all of its work based on an analog system and not a digital system. When Personal Computers became poplar and started creating all sorts of devices that could be digital instead of analog, the security video industry certainly wasn’t the last to be affected. Today, nearly all video security systems that are sold are DIGITAL video systems.

As the “digital age” came upon us, the security camera industry started assimilating advanced technology and digital based devices with just one problem. Sometimes the industry adopted the new digital nomenclature yet other times they would maintain the old analog nomenclature. So, TVL camera is actually a carryover from the analog days.

A TVL camera is referring to the detail it can display in different formats. It represents the horizontal lines of resolution that the camera is capable of displaying. Older CRT (Cathode Ray Tube) monitors and televisions created a picture by flashing a moving beam across the screen, usually about 60 times per second. TVL represented how many times the CRT would draw a horizontal line. The greater the number the more detail on the picture.

TVL camera carried over from the analog days and is still used today. However, today’s cameras are digital and produce their images by creating tiny dots that are circular or square called pixels. This is how the Digital Video Recorder or DVR displays its images. However, there is still some confusion, because the specifications for the DVR refer to the size of the image being recorded, not the detail. To make matters more confusing, they use a mixture of different terms.  For example:

  • – D1 is the same as 720 x 480 pixels
  • – CIF is the same as 360 x 240 pixels
  • – 4CIF is 704 x 480 pixels

And these are usually the terms referenced in regard to what size image the DVR will display from a given camera; once again this is not detail but how big of a display it can create. However, TVL can be applied to these because TVL is the resolution or detail in each of the above examples. This means that a D1 camera/DVR combination should be able to display up to a size of 720 x 480 pixels with a 520 TVL camera. However, if the TVL camera produces a resolution higher than what the DVR can support, the detail resolution information is lost or in other words just not used.

For example, if a DVR displays the image in CIF format, using a 540 TVL camera is basically overkill because CIF format can only support about 280 TVL, the rest is wasted. Be certain to consider these picture sizes and resolutions when designing your system because you’ll want everything to match up.

If you would like more help with this subject try going to Security Camera King’s page and read the articles posted there or you may contact one of our security experts either on-line (Live Chat) or via telephone at 866-573-8878 Monday through Friday from 9AM to 6 PM EST.