Posts Tagged ‘ Security Surveillance ’

Security Cameras for the Home

Monday, September 27th, 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.


Wireless Security Camera to PC

Tuesday, September 14th, 2010

A wireless security camera to PC (Personal Computer) may be the solution for you if you are looking for a quick and easy self-installation video security system. Thanks to modern technological advances, the average homeowner can now afford a wireless security camera to PC system; but the are limited to residential use only. A wireless security camera to PC system makes a great video surveillance/security system for offices and businesses as well.

Let’s take a brief look at how a standard non-wireless security camera system works so we can compare it to the installation, components, and operation of a wireless security camera to PC system. For the most part, the biggest advantage of a wireless security camera to PC system is that if you already have an existing PC you may be able to use it for your security system, greatly reducing the total cost of the system. However, let’s take a closer look.

Digital video security camera systems are component systems. This means that there are basic parts or pieces (components) that are needed to make the system work. However, since they are a component system, you can use different components that are made with specific features to meet your needs. In addition, the each component can be made by a different manufacturer as well. For example, instead of purchasing a four camera system where every camera is exactly the same and may not exactly suit your needs, you can purchase four different cameras such as an indoor, an outdoor, an infrared, and a Pan-Tilt-Zoom (PTZ) camera that specifically meet the requirements of your security needs.

A typical component system consists of one to several digital video cameras, a Digital Video Recorder (DVR) with a processor, and a monitor. The digital video cameras transfer light images into electronic data that is normally sent to the DVR using an RG-59 coaxial video transmission cable.

The DVR has a hard disk drive just like the one found in a PC. In addition, the DVR normally has a highly specialized processor, much like the PC processor but built specifically to handle the tasks of security video processing. This processing includes applying a COmpression/DECompression or CODEC utility to make the very large digital video files smaller without sacrificing quality. This makes the files easier to handle for the processor, DVR, and monitor, including the ability to store longer time periods of video on the DVR. A CD/DVD recorder, Flash drive connection, or other device may also be used to copy the digital video file to another transportable media (this may be necessary to provide to police, insurance companies, as evidence, etc.).

In a wireless security camera to PC system, the same functions are performed but with a few changes. First, the digital video camera does not send its digital video data via the RG-59 coaxial video transmission cable. Instead, the camera contains an on-board transmitter and antenna which it uses to send the digital video data via radio waves. There are several different types of radio technology that are used to send the signal but probably the most common is the 2.4 or 5.8 GHz band technology, the same used for land-line based wireless phones.

The signal is sent to a corresponding receiver that then sends the signal via a transmission cable to a PC card. Some systems have the receiver built right into the PC card, eliminating the need for a separate receiver. The PC card is usually a PCI type PC card that can be added to one of the computers empty PCI extension slots or bays. The card is designed to capture or process the digital video data and apply the CODEC to create a compact digital video file with high quality.

After the PC card processes the video data and creates a digital video file, it then stores the file using the computer’s hard disk drive and the video can be viewed live or reviewed later as the recorded file on the computer’s monitor. As you can see, using a wireless security camera to PC system eliminates the need for the DVR with processor and the monitor, thereby reducing the cost of the overall system.

There are several variations of wireless security camera to PC systems that are designed to meet different needs. Contact one of our security experts via live chat or telephone if you would like more information.


Quality Wireless Security Home Cameras

Tuesday, August 24th, 2010

If you don’t want to run coaxial cable from each digital video security home camera to a Digital Video Recorder (DVR) or personal computer and you want a high quality color video image, quality wireless security home cameras may be for you. Security Camera King carries a large selection of quality wireless security home cameras and security camera systems.

There are basically two types of quality wireless security home cameras. Each camera transmits its signal using some sort of radio signal technology, but they differ in that each type transmits to a different destination or receiver. One type transmits its digital video signal to a corresponding receiver and the other transmits its signal to a wireless internet modem or router to connect to the internet.

Let’s discuss each one of the quality wireless security home cameras, but before we do, let’s briefly describe a non-wireless security home camera system for comparison. A non-wireless system consists of three basic components: 1) A camera or cameras; 2) A DVR; and, 3) A monitor. Some systems utilized computer PCI cards that receive, process, compress, and store the video images using a personal computer. These devices can eliminate the need for a DVR and a monitor as the computer is used in their place.

A basic system operates by capturing the video with the digital video camera. The camera transfers the image into an electronic signal that is sent via a coaxial cable to the DVR or personal computer. The DVR or computer then assembles the data into a digital video file that can be viewed on a monitor and stored on the DVR or computer hard drive for later viewing or archiving purposes.

The first quality wireless security home camera method eliminates the video transmission cable by sending the digital video signal by radio waves to a corresponding wireless receiver. The receiver is then connected to a DVR or a server for internet access.

The transmitter and antenna are built into the camera. The transmitter usually uses the same 2.4 or 5.8 GHz radio band spectrum technology that wireless home telephones use. These cameras normally specify their ranges in terms of Line Of Sight or LOS. The maximum LOS range for a camera is the distance the camera can operate with a direct Line Of Sight between it and the receiver. In other words the range is stated based on no objects blocking or impeding the transmission path between the camera’s antenna and the receiver’s antenna.

However, if something does block the LOS, the camera doesn’t necessarily fail to work. Instead, depending on the material of the object, the range is usually just reduced. Normally, walls, windows, and buildings for example do not entirely block the wireless signal, they just reduce the useful range. Once the signal reaches the receiver, it transforms the signal from a radio signal back into an electronic signal and transmits it via a cable connection to the DVR or personal computer.

The second quality wireless security home camera method involves sending the video signal to wireless modem or router to be transmitted via the internet. This cameras usually take advantage of WiFi or 802.11 wireless technology to transmit their signals. The difference between this and the first method mentioned above is that the first method basically sends a raw video signal. The second method involves using cameras that have built in processors and servers so that instead of sending a raw video signal, they are actually sending a “packaged” digital computer file via radio waves to the internet.

These cameras are often referred to as Internet Protocol or IP ready cameras. Since they contain all the necessary circuitry to process, compress, and send the signal via the internet, they can be remotely accessed from anywhere in the world that broadband internet access is available. Although these cameras can be connected to a DVR via the internet, it is not always necessary as they can utilize a typical personal computer to do the job of monitoring, controlling, and storing the digital files.

So whether it is a locally based wireless system or an IP ready wireless system, quality wireless security cameras can easily satisfy your need for a peace of mind. Their wireless technology allows the cameras to be mounted in areas that might not otherwise be possible with cabling and installation is a cinch. In addition, quality wireless security home cameras are economically priced to fit just about any home budget.


Wireless Home Security Internet Cameras

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.


Color Cameras for Home Security

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.