Zoom CCTV

 

One of the most popular digital video security system features is the zoom CCTV or Closed Circuit TeleVision. There are many different types of Zoom CCTV cameras designed for a multitude of uses; be sure when shopping for one that you get the features you need. What is a “zoom CCTV” anyway? It’s a digital video security camera used in CCTV that can vary its lenses focal length enough to enlarge objects farther away from the camera and make them appear closer (enlarged) and with more detail. These lenses are often referred to as varifocal. Most box cameras that do not have built in lenses so they have the advantage of using Zoom CCTV lenses only. These can be manual lenses where they are basically positioned through trial and error by hand or they can be remotely controlled as well. There are also some cameras that do have on-board lenses that zoom only and these are often found among the bullet type and dome type cameras. When we say “Zoom” only, we are referring to just the zoom function, as compared to a Pan-Tilt-Zoom or PTZ camera which has additional features including the ability to move horizontally or vertically.

Source : http:// www. security cameraking .com/ securityinfo /

TVL Camera Resolution

Digital video security cameras come in all shapes and sizes and with different degrees of resolution, often using the phrase “TVL Camera” such as a 600 TVL Camera. What does TVL mean and how does it relate to digital video security cameras?  We’ll answer that question and more in the following article.

First, It will make things much easier to understand if you know a little security camera industry history. Full security camera systems have been around for several years now, however not until relatively recently have the systems been based on binary (digital) data instead of its older analog data.

In the old days, (a few years back), security cameras were in a closed loop with an analog recorder, such as the older VHS or Betamax video recorders. Recorded security footage was either recorded on a looping video tape, so that when the tape reached its end it would start at the beginning recording new material over the previously recorded older data. Another method was to monitor the Video Recorder closely (and constantly) and eject the current tape when full and insert another blank tape (probably the least favorable of any of the methods).

The point here being that video security systems have been around for a long time, doing most all of its work based on an analog system and not a digital system. When Personal Computers became poplar and started creating all sorts of devices that could be digital instead of analog, the security video industry certainly wasn’t the last to be affected. Today, nearly all video security systems that are sold are DIGITAL video systems.

As the “digital age” came upon us, the security camera industry started assimilating advanced technology and digital based devices with just one problem. Sometimes the industry adopted the new digital nomenclature yet other times they would maintain the old analog nomenclature. So, TVL camera is actually a carryover from the analog days.

A TVL camera is referring to the detail it can display in different formats. It represents the horizontal lines of resolution that the camera is capable of displaying. Older CRT (Cathode Ray Tube) monitors and televisions created a picture by flashing a moving beam across the screen, usually about 60 times per second. TVL represented how many times the CRT would draw a horizontal line. The greater the number the more detail on the picture.

TVL camera carried over from the analog days and is still used today. However, today’s cameras are digital and produce their images by creating tiny dots that are circular or square called pixels. This is how the Digital Video Recorder or DVR displays its images. However, there is still some confusion, because the specifications for the DVR refer to the size of the image being recorded, not the detail. To make matters more confusing, they use a mixture of different terms. For example:

- D1 is the same as 720 x 480 pixels
- CIF is the same as 360 x 240 pixels
- 4CIF is 704 x 480 pixels

And these are usually the terms referenced in regard to what size image the DVR will display from a given camera; once again this is not detail but how big of a display it can create. However, TVL can be applied to these because TVL is the resolution or detail in each of the above examples. This means that a D1 camera/DVR combination should be able to display up to a size of 720 x 480 pixels with a 520 TVL camera. However, if the TVL camera produces a resolution higher than what the DVR can support, the detail resolution information is lost or in other words just not used.

For example, if a DVR displays the image in CIF format, using a 540 TVL camera is basically overkill because CIF format can only support about 280 TVL, the rest is wasted. Be certain to consider these picture sizes and resolutions when designing your system because you’ll want everything to match up.

Source : http:// www. security cameraking .com/ securityinfo /

IPNET Access Management Software - CCTV Camera | Biometrics Systems | DVR | IP Camera | IPCCTV | Surveillance System

IPNET Access Management Software

IPNET Guardman Access Management Software

All IPNET GUARDMAN controllers are supplied complete with GUARDMAN access management PC software at no additional cost.
The IPNET GUARDMAN software suite is an extremely user-friendly and intuitive package that provides a wealth of access control functionality in addition to some innovative and very useful features. Following Microsoft Windows® convention ensures that you feel immediately at home and can familiarise yourself with the controls in a matter of minutes. This also minimises the need for any specialist training saving you both time and money.

Understanding Security Camera Requirements

Understanding security camera requirements depends on the user's reasons for deploying the devices. Home or business  owners have different reason for installing cameras and must choose between a wired or wireless installation. Advances in the security industry have made security cameras more affordable and easier to install. Now, homeowners, business owners and other users can find a set-up ranging from a single security camera to a more complicated multi-camera system

Drug-dealing garage boss jailed

Drug-dealing garage boss jailed

A garage boss has been jailed for 11 years and two months after his own CCTV cameras showed him involved in illegal drug deals. John James, 48, was arrested along with Martin Dickson, 27, after police raided JJ Autos in Wishaw, North Lanarkshire, in September 2008. The High Court in Glasgow heard how officers found a kilo of heroin as well as cocaine, a shotgun and crossbow.

Dickson was sentenced to five years and two months in prison.

The court was told that during the raid, police found a kilo of heroin with a potential street value of £70,000 buried in the grounds of the garage as well as a small quantity of cocaine.

Black sack

They also found a sawn-off shotgun hidden behind a plasterboard wall and a loaded crossbow under James' desk.

James, a wheelchair-user, also had £2,000 in cash in his trouser pockets when police searched him.

Footage from CCTV cameras at the garage showed James, whose spinal cord was severed after he was shot nine years ago, involved in several drugs transactions.

Dickson was also shown approaching the garage after hours and throwing a black sack over the fencing. The bag was similar to the one which police dug up containing the heroin.

James, from Wishaw, was convicted of being concerned in the supply of cocaine and heroin between 1 and 11 September 2008, and possessing without lawful authority the crossbow and gun.

Dickson, also from Wishaw, was convicted of being concerned in the supply of heroin and cocaine between the same dates.

http://www.iptecworld.com/cctv-news/cctv/drug-dealing-garage-boss-jailed.html

Dubai Security Cameras "Everywhere"

Dubai Security Cameras "Everywhere"

Dubai police are to spend Dh500 million ($136 million) on security technology in 2010 with the aim of having surveillance cameras "everywhere".

There are 25,000 security cameras in the bustling emirate of Dubai.This number will be increased to keep up with the city’s fast expansion as the police force starts installing a new type of smart cameras that can rotate to cover what were once “dead spots”.

“We need to work according to a well-studied strategic plan and not only react to events as they come along...We will have cameras everywhere,” Lieutenant GeneralDahi Khalfan Tamim, the Chief of Dubai Police, told The National on June 19, 2010.

Attacker is free because no CCTV

Attacker is free because no CCTV

A lack of CCTV cameras has meant a glassing attacker has escaped conviction after a New Year's Eve assault, victim Kylie Keough says. Ms Keough was hit in the face with a glass on December 31, 2008, at the Ashmont Inn but 17 months later the attacker has yet to be charged. Although the venue has extensive video surveillance, the beer garden in which Ms Keough was assaulted was a blind spot.

Ensure Safety With Cctv Security Systems

In this day and age, you can’t be too complacent about the safety of your own home. Crime abounds everywhere, and even the seemingly safest areas are not spared. Crime prevention is a near impossible feat. However, crime detection leading to prosecution is not, thanks to CCTV security systems.

IPTEC H.264 Digital Video Recorder (DVR) - IPD-4HQ

IPTEC IPD-4HQ Digital Video Recorder is a professional entry level DVR that not only replaces the traditional VCR & multiplexer setup but also offers the benefits derived from the latest in digital video processing. It is competitively priced with features you would normally expect to see only on more expensive DVR's. This includes superior picture quality, fast frame rates and LAN for Local connection also support TCP/IP and DDNS function for internet connection.  The following are the 10 key features and the reasons why you need to have IPD-4HQ.

Super High Resolution Sony CCTV Infrared Camera - IPB-3816PVR

Colour 600/700TVL Sony 1/3” High Resolution Infrared Camera up to 40 meters

IPTEC IPB-3816PVR IR long range cameras are truly superior quality. Super High Resolution colour camera with latest advance 4th generation SONY 1/3”  CCD.  Designed for surveillance application where a high definition image and color reproduction are required. With its built-in 48pcs high performance  LED’s it can produce black and white images up to 40 meters in conditions as low as 0 lux.  IPB-3816PVR has unique 3-Axis mechanism, to achieve free 3D rotation (Pan/Tilt/Roll).