Posts Tagged ‘ webcams’



CCTV Digital System

Written By:
Thursday, January 27th, 2011

CCTV Digital SystemNothing can provide the power of security and surveillance better than a Closed Circuit Television or CCTV digital system. Analog digital security provides adequate security and surveillance, but with the advent of the CCTV digital system there are far more beneficial features and options available. In fact there is a CCTV digital system for just about every security or surveillance situation.

A standard CCTV digital system is based on components. That means that individual devices (i.e. components) can usually be mixed and matched to adapt to a variety of uses to create the ultimate CCTV digital system. The three components, digital cameras, Digital Video Recorders or DVRs, and monitors provide the flexibility of versatile applications while maintaining the power and integrity of a single, complete and easily controllable system.

CCTV digital systems are expandable so they are great for both residential and commercial applications. Security Camera King offers the “Complete 16 Channel (i.e. 16 camera inputs) DVR Ultimate Security Camera Package with Bulk Cable” as its finest, top-of-line digital system. Although this package can handle sixteen channels which is adequate for most security applications, if more cameras are required, additional cameras with an additional DVR can be added.

CCTV digital system camera’s have a wealth of features and options to make them applicable to almost any application. In addition to the standard box, bullet, or dome shaped cameras CCTV digital systems can easily employ the use of covert video surveillance cameras such as hidden or disguised cameras. This is possible because the digital cameras can be manufactured in such incredibly small sizes.

In addition, the electronic sensor inside the camera that converts the light energy emitted by the objects in the camera’s field of view can also inherently detect near infrared radiation. In fact, most non-infrared cameras have an infrared filter over the sensor to block out the near infrared light. This inherent ability to detect infrared radiation makes the camera an excellent choice for night time or total darkness video monitoring applications. The camera’s sensor can detect the infrared light but it is invisible to the human eye.

Other optional features of CCTV digital systems include using the Internet for networking cameras or DVRS and for providing access to CCTV digital systems anywhere in the world that there is broadband Internet access and a suitable device (computer or smartphone).

CCTV digital systems can also have object tracking or following as part of the software that is supplied with either the DVR or Pan-Tilt-Zoom (PTZ) cameras. Object tracking makes CCTV digital systems an excellent choice for commercial parking lots or for following individuals in open spaces.

Digital Video Recorders, like their analog ancestors the VHS or Beta video recorder, can store digital video files for later use or archiving, or can render them in real-time for live viewing. Security Camera King’s featured DVRs even have the ability to stream the digital images from our CCTV digital systems over the Internet. Unlike analog recording mediums, long-term digital storage media (CDs and DVDs for example) don’t allow the quality of the video image to degrade over time.

The third component of the CCTV digital system, the digital monitor, has also offered vast improvements over its analog ancestor the CRT monitor. Digital monitors can provide High Definition (HD) images or several camera images on just one monitor. In addition, these monitors are much lighter so they can easily be wall or ceiling mounted. Furthermore, they use a lot less power to produce their pictures than their older counterparts.

Finally, since every component of a CCTV digital system now operates based on digital data, many of the individual electronic parts of the system are the same parts used in the personal computer world. CCTV digital system cameras are similar to webcams; DVRs are similar to computer hard disk drives; and security monitors are similar to computer monitors.

This provides for an enormous advantage over older analog systems. Much of the equipment used in CCTV digital systems takes advantage of the vast technological advances that are made in the personal computing world. Not only do the systems reap the benefit of technological advances, but the systems themselves are much more versatile in use and are lower in price.

If you have any additional questions about the individual components of a CCTV digital system or are considering the purchase of a CCTV digital system, contact one of our security experts today. They are easily accessible via the “Live Chat” option or by telephone.

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Camera Monitor Security Software

Written By:
Tuesday, December 21st, 2010

Using camera monitor security software, you can turn an average webcam into your own digital video security camera. Though digital video security cameras are designed specifically for security and surveillance applications and provide the best option for this purpose, it is possible to use new or existing web cams, digital cameras, and even video cameras for security monitoring.

There are many different camera monitor security software programs available today. In fact, this software is not limited in application to just webcams and similar devices but also applies to the programs that are used on a Digital Video Recorder (DVR) for standalone digital video security systems. Let’s talk about the software that applies to webcams and similar devices first, and then we’ll mention some features of the camera monitor security software used on DVRs.

A typical standalone digital video security system is a component system which consists of at least three major components: 1) One or more digital video cameras; 2) A DVR with a Digital Signal Processor (DSP); and, 3) A monitor.

A digital video security camera converts the reflecting light energy in the camera’s field of view into electrical energy. This electrical energy can be measured and digitized (converted from analog to binary or digital form) and passed along to a DSP. The DSP compiles the data sent to it from the camera and creates a digital video file that is stored on the DVR and/or can be viewed in real-time (live) on a monitor.

Camera monitor security software allows one to use a digital video device not typically designed for security and surveillance applications, to be used for this purpose along with a personal computer. Using this software, the user can program the computer to become the DVR and monitor and link the digital video device to them.

This is not the same as a system that is specifically designed to work with a computer by inserting a PCI card and installing special software to use with the PCI card. An example of such a system is a Geovision system, (see our July 2010 Archive in our Knowledge Base or click this link http://www.securitycameraking.com/securityinfo/2010/07/ for information on Geovision systems). Geovision systems are designed to be used with standard digital video cameras, not webcams.

There advantages and disadvantages to using camera monitor security software instead of a standalone digital video security system. The following lists a few of each:

Advantages
• Allows you to use existing hardware so that only the software needs to be purchased.
• Significantly reduces the cost for a digital video security system.

Disadvantages
• Many programs/computers can only utilize one camera, which is seldom enough to provide comprehensive security coverage.
• Webcams are generally designed for “up-close” usage and may not provide an adequate field of view.
• Most personal digital video devices (webcams, digital cameras, etc.) are not weather-proof and cannot be used outdoors.
• Using this software, especially continuously, can tie up valuable personal computer resources such as memory and hard disk drive space which can significantly reduce the efficiency of the computer for other tasks.

The disadvantages of this specific type of camera monitor security software generally outweighs the advantages for use in security and surveillance applications. Nonetheless, it can provide an economic solution for applications where a computer and webcam are already available.

The other type of camera monitor security software mentioned at the beginning of this article is designed for use with standalone DVR systems. This software is usually a proprietary program that is designed by or for the manufacturer of the DVR. Modern DVR units are basically mini-personal computers but are specifically designed for video recording use. This software coordinates the interaction between the digital video security camera, the DVR, and the monitor.

In addition, the software may contain additional features such as:
• Motion detection;
• E-mail or other electronic communication alerts;
• Timing functions;
• Controlling camera functions such as Pan-Tilt-Zoom (PTZ); and,
• Controlling monitor display functions such as the number of cameras, the frame rate, color or black and white, and other features.

As you can see, in either application, camera monitor security software is the programming link between the various hardware devices including the processor. It can be designed for specific or general applications and can be provided in a variety of different formats. If you need more information or are interested in purchasing camera monitor security software, contact one of Security Camera King’s security experts today.

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