Posts Tagged ‘ digital video cameras’



Home Surveillance Systems

Written By:
Thursday, March 17th, 2011

Home surveillance systems provide security, protection, and monitoring services that can give you peace of mind and keep your family safe.  These systems are based on digital video and digital data; because of this they have the explicit advantage of sharing the benefits of technological improvements in the personal computing industry.  This means exponentially greater performance at less expensive prices.

Typically, most home surveillance systems are component systems made up of three major components or pieces of equipment; the digital video cameras, the Digital Video Recorder or DVR and one or more monitors.  Digital video cameras may be mounted anywhere that’s advantageous to the user; however, standard applications normally provide for exterior perimeter coverage of the home including entrances, exits, and first floor or ground accessible windows.

Inside the home surveillance system can be “zone” type where coverage is based on specific areas of the home and cameras are normally placed in large rooms, hallways, lobbies, and the like or every room may be equipped with its own camera.  This is really a matter of the user’s preference, as are special use cameras.

Special use cameras on the exterior of the home can include a wide variety of cameras and situations.  For example, outdoor cameras (as well as indoor cameras) can be equipped with infrared illumination and the required electronics so as to provide 24 hour coverage, even in total darkness.

More specific uses for the exterior of the home include gate monitoring, driveway monitoring, garage and other detached building monitoring, pet area monitoring, and entrance monitoring.  These cameras can be standard “wired” types or they can also be wireless where the camera transmits a signal to a receiver that is located close to and cabled with the DVR.

Another useful feature for gate and entrance door cameras is two-audio.  Using two-way audio, the gate camera or door camera can act like a security guard that allows you to converse with whomever maybe at the door or gate before permitting them entry.  Each of Security Camera King’s home surveillance systems DVRs supports two way voice technology.

There are many other uses for exterior home surveillance systems’ cameras that are just too numerous to mention here.  The key point is that with all the basic and optional features that digital video cameras have available to offer; they are so versatile that there is almost no situation where they can’t be used.

In addition, there are probably just as many special uses for cameras inside the home as there are outside.  As mentioned earlier, cameras can come with infrared video capability so that when a room is in total darkness, a clear, crisp highly detailed black and white video can still be created.  These cameras are especially useful as baby monitors.   Placed in the nursery with a full open view of the crib/bed and baby/child, these cameras can monitor the infant all night long without disturbing them.  (The infrared Light Emitting Diodes or LEDs that are used to provide the infrared illumination cannot be seen by the human eye.)

Home surveillance systems for inside the home can also include cameras with motion detectors.  These cameras are connected to an on-board PIR or Passive InfraRed detector that turns the camera on for recording only when motion is detected.  The cameras are useful as alarms as well, for the DVR if so equipped, can be programmed to send and email every time the camera is activated.  Furthermore, these cameras save a tremendous about of DVR hard disk space since they only record when motion is detected.

Another highly specialized use indoor home surveillance systems camera is the hidden or disguised camera.  Modern technology has paved the way for these relatively new cameras.  The units are so small that they can easily be hidden inside other normal working objects.  For example, if you need a camera to monitor your home office while you are away, but feel that a mounted camera may appear obtrusive or aesthetically displeasing, you can use a hidden desk clock camera.  The camera is hidden inside the stylish full operating model of a desk clock.

Security Camera King offers all sorts of home surveillance systems and very competitive prices.  We offer 4, 8, 16, and 32 channel systems that come complete with cameras, cable, connectors, power supplies, and a DVR.  We feature three different types of DVRs; the entry level “Elite Mini,” the full enterprise level “Elite,” and our top of the line “Ultimate.”

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Surveillance DVR

Written By:
Wednesday, March 2nd, 2011

The backbone behind any good digital video security system is the surveillance DVR or Digital Video Recorder.  It processes the video transmissions sent by the digital video cameras, controls the video cameras, stores the recorded surveillance video footage, and transmits the real-time and recorded video images to the monitor, the internet, or some other output device.  In essence, the surveillance DVR is actually the brain of the security and surveillance digital video system.

The surveillance DVR can be directly wired or cabled to the digital video cameras or the cameras can communicate with the DVR wirelessly.  In many covert (hidden or disguised) digital video surveillance systems the DVR and camera are an all-in-one compact system.

Another method of communication between the DVR and the cameras uses the Internet for the vehicle of the cameras’ transmissions.  This means that cameras can be easily placed in a variety of locations that have Internet connectivity and their signal can be sent all the way around the world via the Internet to a Network Video Recorder or NVR (essentially a surveillance DVR designed to work on the Internet with Internet Protocol or IP ready cameras).

Regardless of the method used to transmit and receive the video transmission signal from camera to surveillance DVR, the DVR’s chief responsibility is to digitally process the information.  It does so by using a unique computer processor Integrated Circuit or IC chip called a Digital Signal Processor or DSP.

Digital video consists of nothing more than digital photographs.  However, these photographs are taken at a high rate of speed and when presented to the human eye at the same rate, trick it into thinking that we are seeing fluid motion video.  Typical high-quality video rate is about 30 photographs, also called frames, per second or 30 fps.

Considering how large a typical digital photograph file can be, you can imagine the amount of digital information in a digital video file.  Hence, the need for the high-speed specialized processor called the DSP.  Consider that a typical high quality photograph may easily contain enough data to make a digital file approximately 1 Megabyte (MB) in size.  For a video file that is 30 minutes long that would be 30 fps x 60 seconds x 30 minutes x 1 MB or a file that is 54,000 MB or 54 Gigabytes in size.  Multiply this times 8 cameras and in one half hour typical 8 channel surveillance DVR has processed over 432,000 MBs or 432 GBs.

Considering the tremendous volume of digital data, one can appreciate very readily why a DSP is superior to an average computer processor since it is designed specifically for the purpose of handling digital video data.

The surveillance DVR’s responsibility doesn’t end here though.  The DVR processes this data into a digital video file. However, the DVR uses a COmpression/DECompression or CODEC utility to make the file just a fraction of the original size without sacrificing much quality of the digital video.

Security Camera King’s surveillance DVRs currently use the latest, most efficient CODEC called “H.264.”  The DSP creates the file using H.264 then saves the compressed digital video file on a recording medium, such as a hard disk drive or some sort of portable memory medium like a Thumb drive or SD card.  In addition, it may make the file immediately available for viewing in real-time on a monitor connected to the system.

If the surveillance DVR makes the video available for viewing over the Internet, it also has further processing to do.  The DSP now has to either download the digital video file to the requesting computer, or more commonly, convert the digital file once again into a different type of file called a streaming file, suitable for transmission over the Internet.

In addition to all this digital data and file manipulating, the surveillance DVR must also handle the responsibility of coordinating the control of the cameras.  Some cameras have Pan-Tilt-Zoom or PTZ functions and the DVR usually instructs the camera what to do with these movements.  Other cameras may have audio recording as well that the DVR must also process.

In addition to the camera processing, the surveillance DVR is also responsible for the display of the video image, live or recorded.  Considering all of these responsibilities, the importance of a high-quality surveillance DVR in a digital video security system becomes readily apparent.  And that’s why Security Camera King only offers the highest-quality DVRs in its digital video security systems.

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CCTV Kits

Written By:
Thursday, February 24th, 2011

Digital video security and surveillance systems are such a cinch to install that they are now available easy do-it-yourself CCTV kits. Security Camera King’s CCTV kits contain just about everything you’ll need to install your own digital video security system except the tools. In addition, we’re available to help you design your system to ensure you receive the maximum efficiency and protection possible. In addition, we also offer full support through every step of the installation process and can offer our unique virtual on-site technical assistance.

If that’s not enough to get you interested in Security Camera King’s high quality CCTV kits, we can also remotely configure your Digital Video Recorder or DVR and system through your personal computer and an Internet connection. Further, we offer free shipping on all orders over $500.00.

Just take a look at our security camera systems CCTV kits. We feature three different levels of HD DVRs including the economically priced Elite mini, the Elite Series, and the high-resolution enterprise level Ultimate Series. Each system is available in four, eight, or sixteen channels (cameras) which include 420TVL digital video cameras except the Ultimate Series that includes high-resolution 520 TVL cameras. In addition, we now feature a thirty two channel Elite Series DVR package.

Our CCTV kits offer top-of-line DVRs that come with tremendous amount of valuable features that are standard and cost nothing extra. Our DVRs all use the H.264, the latest CODEC or COmpression/DECompression utility available to prepare your digital video files for storage and viewing.

Plus, each on of our DVRs is IP or Internet Protocol ready. They can be plugged into an internet connection and offer a variety of Web related features such as remote viewing and camera control and e-mail alert notification. You can access your system anywhere in the world there is broadband Internet access and that includes using 3G and 4G smartphones.

Security Camera King offers six different configurations for each of our four, eight, and sixteen channel systems. For example our 4 Channel systems we offer two Elite mini, two Elite Series, and two Ultimate Series CCTV kits. Each kit comes with the DVR, your choice of digital video cameras, wiring, connectors, and power supplies. In addition we allow you to custom design components so that the system is tailor made for your specific applications (some modifications may require an additional charge).

The Elite Mini system CCTV kit comes in two variations for four, eight, or sixteen channels. Our first variation Elite Mini system CCTV kit (for each channel configuration) in addition to the Elite Mini HD DVR and Indoor/outdoor weatherproof high-resolution infrared vandal dome security cameras, includes four plug and play cables and a four channel space saving power supply. Our second Elite Mini system includes the same DVR and cameras, but includes one four-channel power distribution box, 1 box of RG-59-18/2 Siamese cable, and four power leads for the power box.

These two variations of CCTV kits are also offered for Elite Series and Ultimate Series DVRs. Our eight channel kits offer the same items except there are two four-channel space saving power supplies and 8 plug and play cables in the first variation and one eight-channel power distribution box, 2 boxes of RG-59-18/2 bulk Siamese cable and 8 power leads for the power box.

We have two variations for our sixteen channel systems as well. They include the same items mentioned above except there is enough equipment to support the included sixteen digital video cameras.

At this time, we also offer a thirty two channel CCTV kit. At the present, we only offer this kit using the 32-Channel Elite DVR. However, we do offer it in the two equipment variations as the ones already mentioned.

One of these systems is bound to meet your needs and price range. Our DVRs feature a three year warranty and our cameras and accessories offer a one year warranty. Speaking of accessories, we literally have hundreds of accessories available to further enhance and/or customize your CCTV kit.

If you are interested in purchasing one of Security King’s CCTV kits, you can purchase them using our on-line catalog site at “Security Camera Systems“. If you need anymore information or have any questions about our security camera systems you can also contact us on-line via our “Live Chat” service or by telephone at 866-573-8878 Monday through Friday from 9AM to 6PM EST.

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PTZ Web Cameras

Written By:
Monday, February 14th, 2011

Pan-Tilt-Zoom or PTZ Web cameras bring two powerful punches to the benefit of the digital video security and surveillance world. Not only can these cameras allow your system to reap the powerful benefit of camera movement (the first punch) but also make use of the Internet as a means for networking (punch number two).

PTZ cameras have been used in the video security and surveillance world for quite some time; even when the systems operated in a totally analog format. However, as technology has increased, cameras have become more powerful in function and lighter in weight as well as more versatile in application. Now, digital video cameras with PTZ functions are much more easily controlled.

Older analog systems usually required a separate, big, bulky controller board that connected to the Digital Video Recorder or DVR unit to manipulate PTZ cameras. This board was proprietary in that it was the only device that could be used to pan, tilt, or zoom PTZ cameras. However, since video security cameras have left the analog genre and become digital, there has been some merging that has occurred with the personal computer world.

There are still separate controller boards available for use with digital PTZ cameras, but these cameras can also be controlled by using software and a personal computer. Many systems are now based on personal computer Graphical User Interfaces or GUIs and the PTZ functions can be controlled by a computer mouse or keyboard strokes.

One PTZ web camera can literally take the place of several non-PTZ cameras. Since these cameras can move in two dimensions and enlarge views as well, they can cover the field of vision that would normally take several non-PTZ cameras to cover. PTZ web cameras have many uses and are great for monitoring large areas such as parking lots, industrial property, and even highways.

Having one or more PTZ cameras is certainly a powerful advantage, but if these cameras are also PTZ Web cameras, their versatility in application and ease of access is incredibly increased. A PTZ Web camera utilizes the Internet as the networking solution for the system thereby broadening the scope of access globally.

PTZ Web cameras are also known as IP ready or Internet Protocol ready cameras. These cameras have built in web server technology so that the camera can connect directly to the Internet. Once the Internet connection has been established these cameras can be used in many ways.

For example, more than one PTZ Web cameras can be networked together using the Internet to carry their signals to a remotely located Digital Video Recorder or DVR unit that can record their digital video data. Another way PTZ Web cameras can be used is as individual cameras that use the Internet to send their digital video data to personal computers which are used to monitor and record their digital video data. This has great implications.

PTZ Web cameras that are connected to the Internet can be accessed anywhere in the world there is broadband Internet access. This instantly converts the accessibility of the camera from a local system to a globally accessible system. In addition to monitoring these cameras anywhere there is Internet access, these cameras can also be controlled remotely from the same point.

This access is not limited to only a personal computer with an Internet browser, but 3G and 4G smartphones can also monitor and control these cameras. This means you could be sunning on the beach in Australia while panning, tilting, zooming and monitoring your PTZ web camera security system in Paris. What more is the only thing needed to use your smartphone to do this is the small software application or app; and Security Camera King makes smartphone apps available for their featured security systems for free.

In addition, PTZ Web cameras can also be programmed to track or follow moving objects. This auto-tracking option is great for keeping a close eye on moving objects in the cameras field of vision, especially if the field of vision is not expected to contain moving objects.

So if you have the need for a digital video security cameras that can “look” left and right, up and down, and enlarge the view of objects, consider purchasing PTZ cameras. However, if you would like a camera that does all this and can be viewed and controlled anywhere in the world there is broadband Internet access, consider purchasing PTZ Web Cameras.

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Security Flood Light DVR Camera

Written By:
Thursday, January 20th, 2011

Nothing says “”Gotchya!” to a potential intruder, vandal, or burglar better than a security flood light DVR camera. Thanks to modern technological improvements these devices are an entire compact digital video security system. They can be used in both residential and commercial applications and can be extremely effective when placed in the proper location.

Not only does a security flood light DVR camera help to protect and prevent perpetrators from causing damage or breaking and entering, but it also offers positive deterrence. It’s already been proven by the law enforcement agencies in London, England and New York City that the mere presence of digital video cameras deters criminal activity.

However, the security flood light DVR camera takes it one step further. Not only does it record still digital photographs or digital video images of the intruder, but once the unit senses motion, it snaps on a powerful high wattage flood light illuminating the surrounding area and “spotlighting” the intruder as well.

In addition to protecting homes and businesses, these units are great for protecting other property as well. Boat docks with electricity, barns, storage areas, specific portions of land, back entrances of retail stores, and no-trespassing industrial areas as well can benefit from the protection of a security flood light DVR camera.

The units are relatively easy to install and use as well. Basically, all that is required for installation is to mount the unit, connect it to a standard residential type power line, and select the settings you desire. Then walk away and be confident that your security flood light DVR camera will protect you and/or your family, business, or property.

Before we provide some detail about the design and function of a standard security flood light DVR camera, let’s briefly describe a typical digital video security camera system and how it works.

Most standard digital video security camera systems contain one to several cameras, a Digital Video Recorder or DVR, and perhaps a monitor. The cameras are mounted in various strategic locations and send their digital video data to the DVR unit by means of a digital video cable run from each camera to the unit, or wirelessly using radio signal transmitters and receivers.

The DVR unit, much like a highly specialized personal computer, contains a hard disk drive like those found in computers. The DVR unit processes the digital data and creates a digital video file that can be viewed live on a monitor and/or saved on the DVR for later use.

A security flood light DVR camera is basically a miniature version of the basic system without the monitor. The unit contains all the devices (sans the monitor) within one relatively small, compact fixture. The floodlight is usually a powerful 500 watt halogen flood lamp. These lights can project a powerful beam of light in a relatively wide field of vision.

Connected to the light, DVR, and the camera is an infrared motion detector. The motion detector, known as a PIR or Passive InfraRed sensor, can detect the infrared radiation emitted by the objects in its field of vision. When this “heat signature” changes greatly or rapidly, the sensor interprets this as motion. The sensor activates a relay that switches the security flood light, DVR, and camera on. Depending on the model, the entire unit switches off either after motion is no longer detected or specified time period after the initial “On” state.

When the camera is switched “on” it immediately begins capturing digital video images (or stills), with the flood light helping to provide a crisp, clear, bright picture. An on board processing chip saves the data either as digital photographs or digital video files to the DVR.

The DVR in this case is not a large hard disk drive, but usually consists of an SD card (Secured Digital card), a compact flash card, thumb drive or similar mini-portable memory device. All the user needs to do is remove the SD card, transfer the files to their personal computer and view, print, or make movies disks of the saved data.

Although a security flood light DVR camera cannot provide the extensive precise coverage of a full size standard digital video security system, it does offer an economical alternative and can be quite useful for specific situations. Contact our security experts via Live Chat or telephone if you have any addition questions or would like to make a purchase.

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