Posts Tagged ‘ cctv video’



CCTV Video Software

Written By:
Friday, February 11th, 2011

There are many types of Closed Circuit Television or CCTV video software. Although the term “CCTV video software” doesn’t actually refer to any specific type of digital video security and surveillance software, we’ll take a look at a few of different examples and see what they can do.

For the purpose of our discussion here, we’ll try to classify CCTV video software into two different categories. The first will include software that enables personal computers and accompanying peripheral devices (such as web cams) to act as a digital video security systems. The second category will include software that is used for different functions on digital video security systems, (such as track or follow).

Since video security and surveillance systems have become totally digital, there is a lot of crossover with the computer world. The digital video security community has been able to reap the benefits of the exponentially increasing technology improvements in the computer world, and can even adapt personal computers to act as digital video security systems using the right components and Closed Circuit Television or CCTV video software.

While using a personal computer is enticing, there are certain limitations that still exist if this is done. Generally, digital video processing is one of the most taxing tasks for computer processors to perform because of the incredibly large amounts of data involved with creating high-quality digital video files. Therefore, the Central Processing Unit or CPU of a personal computer can slow down tremendously while trying to operate digital video security camera functions and perform other routine computer tasks. Nevertheless, there are CCTV video software programs that will adapt a personal computer and one or more webcams to act as digital security video systems.

A more popular method of using CCTV video software on a personal computer is the use of a PCI card and actual cameras designed for digital video security systems. This method allows the use of typical digital video security cameras with a personal computer, but reducing the processing load on the computer’s CPU drastically so as (hopefully) not to affect its performance considerably.

The PCI card often contains the Integrated Chip (IC) technology that provides for a Digital Signal Processor or DSP that pre-processes the data sent by the digital video cameras. Many PCI systems also contain a storage disk on the PCI card to alleviate the need for using the personal computer’s hard disk drive. For these systems, CCTV video software provides for the drivers needed for the PCI card and other peripheral devices and instead of handing the CPU all of the work, it utilizes it more to coordinate the work between the computer and the PCI card.

Another facet of CCTV video software design and also one of the most recent includes software that allows digital video cameras and entire digital video systems to use the Internet as a vehicle for networking and accessing. The devices that are used specifically for this purpose in digital video security systems are usually referred to as IP ready or Internet Protocol ready devices.

Although the CCTV video software that makes IP devices possible may not necessarily be installed on a personal computer per se, it does often accompany the device, either in the form of built in programming, circuitry or as Internet browser “add-on.” As for IP ready cameras, the CCTV video software provides web server technology so that the camera may connect directly to the Internet. Using a personal computer with a Web browser and an “Ad-on” program, an individual can monitor, control, and record the camera’s video images to a personal computer by using the Internet as the vehicle for networking.

The second category of CCTV video software is programming that is used to control the camera, DVR, and other devices. This software usually resides on the DVR unit and works with the units DSP to control and coordinate the individual devices. For example, Pan-Tilt-Zoom or PTZ cameras can move horizontally, vertically, and enlarge views. The mechanical movements for these cameras are usually controlled by software that resides on the DVR unit.

Not only can PTZ cameras make those mechanical movements and manipulations remotely using software, but they can also be done automatically using special CCTV Video Software. Furthermore, the software can be used to detect objects moving, and direct the PTZ functions of the camera to track or follow the object’s movements.

It would appear that the potential for CCTV video software is limitless, especially now that we live in the digital age.

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CCTV Video Security Surveillance Equipment

Written By:
Friday, May 28th, 2010

CCTV video security surveillance equipment or closed circuit television video security surveillance equipment can provide all of your security and monitoring needs. Contemporary CCTV video security surveillance equipment offers several features and great versatility along with affordable prices that make this equipment and excellent choice for business and residential applications.

CCTV video security surveillance equipment consists of a few basic components that make up the security systems. Each of these components offers convenient and often highly technologically advanced features that create the versatility of the system such that the equipment can be used for nearly any situation or application. In addition, there are several additional components that can be added to a basic system with ease.

Basic CCTV video security surveillance equipment consists of the following five items:

  • Digital video camera(s)
  • A processor or capture board
  • A monitor
  • A digital video recorder or DVR

Probably the most important component is the digital video camera. Digital cameras for CCTV video security surveillance come in a variety of types, sizes, and functions. Cameras can be classed as either indoor or outdoor cameras. The major difference between the two is that outdoor cameras are built within a casing or enclosure that protects the sensitive electronic components of the camera from the weather and other environmental elements.

These cameras often contain an International Electrical standard code rating that provides the user with a description of the ability of the camera to withstand penetration by liquids and particles. This rating known as an Ingress Protection code or IP code is normally an IP66 or an IP67 for an outdoor CCTV video security camera. IP66 means that the camera is impervious to dust and that powerful water jets from any direction shall have no harmful effects. A rating of IP67 means the camera is impervious to dust and can be submerged in water up to 1 meter in depth.

CCTV video security surveillance equipment cameras can be purchased with other specialized features. Most of these features are based upon recent technological innovations and may increase the cost of the camera depending on the feature and its range of function but are well worth the expense.

For example, most CCTV video cameras create video using a small sensor chip called a Charged Coupled Device or CCD. The CCD converts the light transmitted through the camera lens into an electrical charge that can be detected and used to create high quality digital video. Some CCDs are so sensitive that they can produce high quality video with very little visible light. These cameras, are called day/night vision cameras. Other cameras, called Infrared (IR) night vision cameras can produce a high quality color image when there is visible light present and can produce a high quality monochromatic or black and white image under total darkness conditions when absolutely no visible light is present.

Other features that can be included on CCTV video cameras include a pan, tilt, and/or zoom function, the ability to record audio, and the ability to transmit the video signal from the camera to a receiver using radio waves.

Pan and tilt functions permit the camera to be moved in different directions allowing the camera to cover a wider area of view than one that is stationary. Using pan and tilt functions, one camera may be able to cover the area that may take two or three stationary areas to cover. The zoom function also allows the camera to take advantage of enlarging the field of view, much like a telephoto lens. Cameras can be purchased with the individual pan, tilt, and zoom functions or they can be offered collectively, often referred to as PTZ cameras.

PTZ cameras can be controlled manually, by remote control, and by programming. Programming functions for PTZ cameras can provide automatic tracking functions when utilized with automatic motion detection. For example, the camera can follow a car traveling through a parking lot or an individual in a specific area.
Wireless CCTV video security surveillance equipment normally uses the 2.8 MHz or 5.8 MHz radio band to transmit the video image from the camera to the receiver, which then sends it along to the processor. Cameras come with built-in antennas and circuitry that send the images.

CCTV video security surveillance equipment has seen tremendous technological improvements in just the past few years making the equipment versatile and affordable for just about any application.

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