CCTV Camera Systems
It is crucial to take security seriously in this day and age. It is not just businesses and commercial properties that need good security but it is our homes too. With crime increasing and burglaries very common place, it is very important to consider the available security options and choose one that is the best fit for you.
One of the most popular and cost effective ways of providing security in the home and place of work is with cctv cameras and equipment. CCTV cameras can act as a very successful deterrent to thieves and burglars, certainly making them think twice at the very least. The technology behind security equipment these days is incredibly advanced, and it is even possible to hook the cameras up to an ordinary television or computer to watch the footage.
The following are some of the concerns both home and business have and the Top 10 Reasons for installing CCTV.
- Prevent Crime
- Prevent Employee Theft
- Be a useful piece of evidence
- Help law enforcement solve crime
- Keep an eye on children and elderly folks
- Protecting your staff
- Encourage good behaviour
- Monitoring high-risk area
- Increase customer’s confidence
Analogue CCTV Surveillance
Though most of our attention these days is focused on the transition to IP video technology, it’s important to note that analogue CCTV solutions can still be highly effective for many surveillance applications, especially those on a budget. With traditional CCTV, the video signal is processed and transmitted in analogue format for local viewing from one central monitoring location. But that doesn’t mean you can’t use analogue cameras in an IP-based surveillance environment. Using IP video encoders and other equipment such as digital video recorders and hybrid DVRs makes it possible to leverage your existing analogue cameras while migrating into the world of digital surveillance.
What is a CCTV Camera?
In its truest form, a CCTV (or closed-circuit television) camera is an analogue video camera that transmits signals via coaxial cable to a single central location for monitoring, recording, and video analysis. While the recent trend is a push towards IP network cameras, CCTV cameras are still widely used, and offer a cost-effective answer to many common surveillance scenarios.
CCTV technology has been around since the 1940′s, and became a major player in the security industry around 1970. The technology is tried and true, and there are CCTV camera models for virtually any surveillance application. The two main categories of CCTV cameras are fixed cameras and pan/tilt/zoom models which can rotate horizontally and vertically to cover more area.
CCTV Pros and Cons
These days, there’s a lot to think about when putting together a video surveillance system. And the first question on most people’s minds is “Do I go with traditional analogue cameras, or IP network cameras?” There are pros and cons to both choices. Let’s focus our attention on analogue CCTV cameras.
Pros of analogue CCTV
- Lower initial cost – In most cases, analogue cameras cost less up front than IP network cameras.
- Wide-spread compatibility – Mixing and matching camera models and surveillance equipment form different manufacturers is easy with an analogue CCTV setup.
- Lower initial cost – Analogue cameras tend to handle low-light situations better than IP cameras on average, though IP camera technology is improving in this regard.
CCTV Surveillance System Components
There’s a lot that goes into a successful CCTV installation. While the cameras get most of the attention in the beginning, you also have other concerns, such as viewing, recording, and archiving the video footage, and the equipment required for carrying out those tasks. Here’s a look at the basic components of a typical CCTV system.
Security cameras are the starting point for most CCTV systems. There are endless possibilities when choosing CCTV cameras and lenses – everything from fixed models designed for monitoring very specific locations, to day/night cameras, and powerful PTZ domes for patrolling large areas.
In a traditional CCTV setup, operators view footage from a central location on a monitor very much like a TV, but with higher lines of resolution for better picture quality. Monitors can be dedicated (meaning they display video from a single camera), or call-up (meaning operators can access multiple cameras at the same time).
With an analogue system, coaxial cable is required for transmitting video footage from the cameras. This is one of the drawbacks of analogue CCTV, as the cable can be expensive and difficult to install, especially for larger camera networks, and those were cameras must be positioned in difficult locations.
Most modern CCTV systems incorporate DVRs (digital video recorders) which enable operators to reap some of the benefits of a network-based surveillance setup. DVRs convert the analogue footage to digital, which helps to extend storage capacity, makes it much easier to search archived footage, and also allows users to stream video over a network for remote viewing from multiple locations.