Posts Tagged ‘ Video Surveillance’



Wireless Home Security Internet Cameras

Written By:
Wednesday, August 18th, 2010

If you don’t want to install a coaxial video transmission cable from each camera to your Digital Video Recorder (DVR) or personal computer wireless home security internet cameras may be the perfect answer for you. Recent advances in computer and electronics technology have made these cameras easy to use and economically priced so that they are affordable for just about any budget.

Before we talk about wireless home security internet cameras, let’s just briefly discuss a “wired” home security internet camera system so we can better understand the differences between the two. There are basically two different types of home security internet cameras with the major difference between the two being how the system accesses the internet.

One example of a “wired” home security internet camera system is comprised of digital video cameras that are connected to a DVR by RG-59 or similar coaxial cable. Each camera must have a cable run from it to the DVR unit. These cables carry the digital video image data that is captured by the camera and converted into a storable, viewable digital video file by the DVR. The DVR can store the video for later viewing or for archiving purposes. The DVR also contains internet server technology so that it can send the camera signals over the internet.

Normally, the DVR connects to the internet using a standard CAT 5 Ethernet connection (the same connection you would use to connect a personal computer to the internet). Since the DVR contains already contains the programming and server technology, once the cameras are connected to the DVR and the DVR is connected to the internet, the system is ready for use. These systems often use standard web browsers that can utilize JAVA programming to control the system. A typical internet browser that would work with such a system is the Windows Internet Explorer, however some systems do have their own proprietary software that needs to be installed on the controlling personal computer.

The second example of a “wired” home security internet camera system is created by using Internet Protocol or IP ready cameras. These cameras each contain their own internet server technology. Instead of being connected to a DVR via an RG-59 coaxial cable, they are connected to the internet, once again using a standard CAT-5 Ethernet cable. Each camera is connected to your broadband internet connection using an internet router if necessary. Once these cameras are connected to the internet, the system is ready for use. Once again, these cameras can be accessed with a standard internet browser or with the manufacturer’s proprietary software.

Wireless home security internet cameras work in a similar way, however they take advantage of wireless technology to transmit their signals instead of using the RG-59 coaxial cable. This makes them much easier to install and eliminates the work of running a cable from each camera to the DVR. There are basically two types of wireless home security internet cameras also.

The first example is similar to the first wired example. These wireless home security internet cameras connect to a DVR using wireless technology. The normally use the 2.4 or 5.8 GHz radio band technology to transmit their video image data to a corresponding wireless receiver which is connected by a cable to the DVR. This wireless technology is basically the same used for land-line residential wireless telephones.

The DVR is connected to the internet, normally by a Cat 5 Ethernet cable. The DVR contains the programming and server technology so that once the cameras are set up and the DVR is connected to the internet, the system is ready to use. As above, a standard web browser or the DVR manufacturer’s proprietary software is used to view and control the system.

The second example of wireless home security internet cameras is where the camera connects directly to the internet, but wirelessly. This system usually does not utilize a direct connection between the cameras and a DVR and often uses a personal computer’s hard disk drive as the storage medium for the digital video files.

Each camera contains its own internet server technology and instead of connecting to the DVR, it connects via a wireless connection to your broadband internet connection. These cameras normally connect to the internet through a wireless modem or router using WiFi or 802.11 wireless internet connection technology.

Whichever method you choose, wireless home security internet cameras eliminate the need for running a transmission cable making them a cinch to install and operate.

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Color Cameras for Home Security

Written By:
Tuesday, August 10th, 2010

Security Camera King offers a full line of color cameras for home security. Innovative technological advances have yielded a vast diversity of color digital video cameras with almost unlimited versatility for home security. These cameras now offer features that, not long ago, would have been cost prohibitive or simply unavailable. In addition, today’s color cameras for home security are light weight, easy to install, and simple to use.

There are three basic types of camera based on shape; box, bullet, and dome. Each can be useful as color cameras for home security. Generally speaking, the dome camera is used most often indoors because of its low profile design. Box cameras may also be used indoors but are a bit more conspicuous. Usually, box cameras cannot be used as outdoor cameras unless they are placed inside a protective enclosure. Bullet cameras may be used indoors or outdoors, however these cameras are frequently weatherproofed and designed for use specifically outdoors

A typical home security system consists of the color digital cameras, Digital Video Recorder or DVR, and a monitor. The cameras capture a video image and pass it on to the DVR where it is processed and stored. The monitor is used to view the image in real-time (live) or review older footage.

Digital video color cameras for home security normally use one of two sensors to produce a video image: The Charged Coupled Device or CCD; or the Complimentary Metal Oxide Semi-Conductor or CMOS. When these sensors were first used the CCD was more expensive and produced a higher quality video image but recent technological improvements have put the CMOS on close to, or even par with, the CCD.

When considering purchasing color cameras for home security, it’s important to know a little information about the sensors since they affect how the camera produces an image and even more so, the price. These sensors range in size from about ¼ inch up to 1 inch or so. Generally, the larger the chip the higher the resolution (quality) of the video image produced.

These sensor chips can be built so they are very sensitive to light. Color cameras for home security that contain these types of sensors are called day/night vision cameras and can produce high-quality color images with very little available visible light.

These sensors are also inherently sensitive to certain types of infrared radiation. Using infrared Light Emitting Diodes or LEDs as spotlights, cameras with these sensors can create high quality monochromatic video in total darkness. (The infrared light created by the LEDs is invisible to the human eye.)

There are other options to consider when purchasing color cameras for home security use. Digital video cameras require that a coaxial RG-59 video transmission cable be run from each camera to the DVR. If you will be installing cameras where cabling would be difficult, you may want to consider the wireless camera option. Wireless cameras transmit their video signals via built in transmitters and on-board antennas to a corresponding receiver unit that forwards the signal to the DVR.

Another convenient option is to use IP ready color cameras. IP or Internet Protocol ready cameras for home security systems contain their own server so they can be connected directly to the internet. These cameras can be viewed and controlled using either a simple web browser such as Internet Explorer or their own computer software. You can network your entire home video security system with these cameras using just an internet connection to each camera and can monitor them anywhere there is internet access.

If your home security system requires that your cameras not be obvious, there are several hidden or disguised camera options available as well. These cameras, designed for covert use (they make great nanny cams for example), are designed to be hidden or disguised as other objects. Security Camera King stocks a wide selection of the cameras that appear to be other objects such as smoke detectors, motion detectors, exit signs, sprinkler heads, speakers, wall clocks, telephones, thermostats, clock radios, and many others.

So if you are in the market for digital video color cameras for home security use, check out all that Home Security King has to offer. Not only do we offer color cameras for home security use but we also offer the entire system, whether you need a 4, 8, or 16 channel system. To view our catalog of products click on the appropriate heading in the left sidebar of our home page.

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Security Cameras for In Home Use

Written By:
Wednesday, August 4th, 2010

There are several types of security cameras for in home use. In fact, just about any security camera can be used for residential purposes although there are cameras that are more suited for in home use than others. Security camera technology has advanced so much recently that the versatility of security cameras for in home use is almost limitless.

Every home is different; the number of rooms in the home, the perimeter area that surrounds the home and the size of the home’s yard, the entrances and exits, number of windows, especially those on the ground floor – all vary from house to house. As every home’s design is different, so are the uses and needs for the security cameras for that home.

The most effective method to determine what security cameras for in home use are best for you is to evaluate your home design and your security desires and needs. After determining what you need to provide and the level of security and monitoring you desire, you can more easily begin the process of shopping for specific cameras that will satisfy those requirements.

Still, as stated earlier, there are security cameras for in home use that are more suited for this application than others. For an obvious example, an explosion proof camera or housing would be a ridiculous and unnecessary expense for in home use. However Security Camera King offers several different indoor security cameras that are perfect for in home use.

One way to narrow down your camera choice is to determine if you will be able to run the video transmission cable from each camera to the processor/DVR or Digital Video Recorder or if you would prefer a wireless camera instead. Cabling is the least expensive and the most common option for connecting the digital video camera to the DVR.

However, if installing the RG59 coaxial cable would be troubling for you, or if the cable would seem unsightly, or for any other reason the cable would not be right for you, wireless cameras would be the appropriate selection. Wireless cameras still require electrical power supply, normally in the form of a small wire run to the camera from a plug-in transformer or power distribution box. There are some wireless cameras that use rechargeable batteries as well.

Wireless cameras make use of radio technology to broadcast their video data to a corresponding receiver which then transfers the signal to the DVR. So a receiver is also needed if you choose the wireless camera option. Most receivers can handle up to four cameras at one time so if your system requires more than four cameras additional receivers (or a receiver that can handle more than four cameras) will be needed.

Regardless of whether you use cable or wireless technology, there are several different security cameras for in home use based on appearance, mounting design, and function. There are basically three types of cameras based on appearance. They are the box, bullet, and dome types, with each name representing a description of the appearance of the camera.

Each type has its own benefits and deficits. The box camera is probably the most common style of video camera but can also be somewhat obtrusive mounted on a room wall. The bullet type is also popular, but this type of camera usually lends itself to weatherproofing and infrared technology geared toward the outdoors. So if the box and bullet types are not appropriate for your application, then the dome type camera would probably be the best choice.

Dome cameras are fairly low-profile cameras with many available as a flush mount. Flush mounted dome cameras are installed in the wall or ceiling with only the “bubble” cover extending away from the surface. Security Camera King offers several different types of indoor dome cameras based on use and resolution display. That includes total darkness capable night vision infrared dome cameras as well.

Another category of security cameras for in home use include the hidden or disguised camera types. The cameras are embedded inside clocks, thermostats, and other everyday items to disguise their appearance.

To determine what camera is best for you, talk to one of our security experts today.

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Home Video Security Systems

Written By:
Tuesday, August 3rd, 2010

Versatility, economic pricing, and Innovative technology are making home video security systems the number one choice for residential security and surveillance. Home video systems are no longer just for the extremely wealthy; and, their abundance of features and options makes them suitable for use in almost every environment and for any need.

Today’s home video security systems are basically component systems. There are several benefits to component systems, but the greatest is the ability to customize each component to suit your needs.

Thanks to great advances in the electronics industry, especially with semiconductors and integrated circuits, cameras can perform a variety of functions that 15 years ago would have been extremely expensive or simply unavailable. Processors and DVRs are becoming exponentially more powerful with each new design.

Typical home video security systems usually have from one to several cameras, a processor/Digital Video Recorder or DVR, and a monitor. The digital video cameras send their digital video signal to the processor/DVR. The processor converts the cameras’ signals into digital video files that can be viewed on the monitor and/or stored on the DVR for later viewing and/or archiving purposes.

Cameras
The cameras used for home video security systems are usually digital video cameras. These cameras produce high quality color video under normal lighting conditions. Cameras can be purchased with extremely high resolutions that create extremely high quality video.

Cameras are also available for special lighting conditions. There are cameras that can produce high quality video under conditions of very little visible light or cameras that can produce high quality monochromatic or black and white video under conditions of total darkness. These “low light condition cameras” may be useful for perimeter coverage of the home and yard and other outdoor applications.

Night vision infrared cameras are useful for monitoring areas outside or inside the house that are normally not illuminated at night. They are also great for use as a baby monitor camera, nanny cam, and monitor for rooms that are normally not lit such as closets, storage areas, garages, stairwells, etc. These cameras use infrared Light Emitting Diodes or LEDs to illuminate their target area with infrared light. This “light” is invisible to the human eye but can be seen with the camera’s special sensor.

Another useful camera option is a camera with a motion detector. These cameras have small infrared sensors that detect a change in infrared radiation from moving objects. These motion detectors are connected to a relay that can turn the cameras on and off. These can be used to record video only when motion is detected saving DVR storage space. They can also be used to alert you when someone or something is present.

Other available options for cameras include:
• Indoor or Outdoor use
• Wireless transmission technology
• Audio recording in addition to video
• Pan-Tilt-Zoom or PTZ functions that allow the camera’s position or field of view to change
• Hidden or disguised cameras (often used as nanny cams)
• IP or Internet Protocol ready cameras can transmit their images over the internet to anywhere in the world there is internet access

Processor/DVRs
This is the heart and brains of the system. It normally contains the utility that compresses the digital video files to make them smaller. There are many different options for different types of compression utilities. DVRs can also be purchased in a variety of storage capacity options. In addition, other “peripheral” items such as CD, DVD, or Flash card writers can be added to the units.

There are also home video security systems that eliminate the need for a processor/DVR and monitor. These systems utilize your personal computer for these functions instead, making the system all the more affordable.

IP camera home video security systems can be used to monitor the home when you are at work, on travel, or away for extended periods. They are also great for 24/7 monitoring by professional companies. They can eliminate the added expense of a proprietary camera system that would otherwise be required.

If you are interested in protecting your home with a home video security system talk with one our experts today.

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Low Light In Wall Surveillance Video Camera

Written By:
Wednesday, July 28th, 2010

A low light in wall surveillance video camera has a multitude of uses. It can be used to monitor your children to ensure their safety and well being; it can be used to monitor an office,; it can be used as a nanny cam to monitor your nanny and child when you are not present; it can be used to monitor individuals that work in your home; or it can simply be used to keep a watchful eye on your important property.

What exactly is a low light in wall surveillance video camera? There are several different cameras that can be classified as in wall cameras. Generally speaking, an in wall surveillance video camera is any digital video camera that is mounted such that it is either flush with the wall (inside the wall) or is mounted on the wall in such a way that its presence is normally disguised. So basically there are two types of in wall video cameras, unconcealed and covert.

Both types of cameras work the same way, the difference lies in how they are mounted on or within the wall. In addition, a low light digital video camera can capture full color high quality video using very little available visible light. Let’s take a look at how these special low light cameras operate first, and then we’ll discuss the different examples of in wall surveillance cameras.

Contemporary digital video cameras work by converting light energy into electrical energy that can be measured to produce a digital video signal. Digital video cameras do this by using one of two different electronic light sensing chips. One chip is called a Charged Coupled Device or CCD and the other is called a Complimentary Metal Oxide Semiconductor or CMOS.

These electronic chips are sensitive to light. The lens of the camera focuses the image on these chips which then convert the light energy into electrical energy and produce a digital video image. These chips can be manufactured to be very sensitive e to light; so sensitive in fact that they can produce high quality video footage in very low light conditions. These types of cameras are often called day/night vision cameras. Their sensitivity to light, that is, the lowest level of light that they can produce a clear image, is normally rated in Lux.

Lux is a unit of measurement of the intensity of light. Some low light or day/night cameras can produce images with as little as .002 Lux of light. That’s about the same amount of light available in the sky on a moonless, clear night.

Other low light in wall surveillance video cameras may actually be night vision infrared cameras. These cameras produce a high quality color video image in visible light conditions and use infrared light in low light or total darkness. These camera’s sensors are also sensitive to infrared light and usually use infrared Light Emitting Diodes to illuminate the target area. Although the camera’s sensor can see the infrared light, human eyes cannot making them excellent choices for covert low light monitoring.

There are several different examples or designs of low light in wall surveillance video cameras. Unconcealed types are normally installed flush with the wall, the majority of the camera and housing occupying the space behind the wall. The camera normally has a protective face plate that is somewhat flush with the wall and that covers the camera lens. There are even corner mount low light in wall surveillance cameras that can be installed in the corners of a room.

Covert low light in wall surveillance video cameras normally disguise the look of the camera or hide it all together. One examples of a covert in wall surveillance camera includes the wall clock camera. This camera looks like a typical office wall clock, and functions like one too. However, hidden within the face of the clock is an opening for the lens of a camera that is mounted inside the clock body.

Other examples of disguised in wall cameras include heating and air conditioning thermostat cameras, electrical face plate cameras, exit sign cameras, and smoke detector cameras. Thanks to modern technology digital video cameras can be manufactured so small they can be concealed in just about anything.

So if you need to keep an eye on some property, a room, an area, or an office that may not always be brightly lit, and you don’t want the camera to be obvious, consider purchasing a low light in wall surveillance video camera.

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