_There are two different types of IP cameras. These include decentralized IP cameras and centralized IP cameras. Decentralized IP cameras include a network video recorder or NVR functionality that is integrated into the camera and therefore does not require the installation of video management software. The data can thus be recorded directly to network attached storage, flash or SD and hard disk drive. The centralized IP security cameras are mostly used for surveillance purposes and therefore need to be connected to a network video recorder to enable alarm management and the proper recording of the entire video.

IP security cameras or Internet Protocol Cameras are quite different from CCTV or closed circuit television technology. The former enables data transmission through a computer network and are slowly taking over as one of the most popular products in the surveillance market. Their popularity can be attributed to the fact that these offer high resolution images and have therefore given a new dimension to home security systems. 

The advantages of using IP security cameras as part of your wireless property protection strategies are many. In fact these can be broadly classified as flexible image format, increased functionality, cost advantages and extensible network infrastructure. 

Flexible Image Format: 

Enabled to offer digital zoom in case of high resolution megapixel images 

Compatible to different modes of video compression like H.264, Motion JPEG or MPEG-4 Part 2.

Offering support for different image resolutions

Progressive scan options

Selection of particular resolution and frame rates

Increased Functionality: 

Remote maintenance, diagnostics and configuration

You can place the camera anywhere as IP security cameras are wireless

Encryption of audio and video data and camera control data 

Compatible to different compression formats and for streaming media

Can be locked with a password to restrict unauthorized access to the images and tampering with the camera configuration 

Cost Advantages: 

Low costs involved even in case of cabling comparatively larger installations

High image resolution

The IP networking equipment infrastructure ensures that the system has a reduced system cost 

A 1MP camera can cover much more in comparison to an analog camera

Less space requirement for installation

Extensible Network Infrastructure: 

Capable of using power over Ethernet

Commands for tilt, zoom and pan are transmitted through a one network cable

Can be used on legacy coaxial cables along with suitable converters

Can be installed at an already existent IP cabling infrastructure 

Has the ability to utilize fiber optic links with suitable fiber converters 

IP security cameras ensure that the business owners and homeowners can keep a tab on their property and belongings even when they are not physically present. All that is required is a computer or even a 3G phone. Article by Jenny at Inter-Dev SEO Companyon behalf of Visonic Wireless home security

_Professional CCTV camera systems have many uses. There are, however, so many different models on the market that it can be hard to find the right model for any give use. Between the different types of cameras, monitoring systems and even memory storage options, it can get quite overwhelming for those making a first purchase. Fortunately, taking the time to really think about your needs can help you to narrow down the field by quite a bit. Your needs will likely be met by at least one set-up sold on the open market, and considering those needs will make the process easier.

_Primary Uses

Professional systems seem to see quite a bit more usage in business settings than the do in homes, though some individuals with highly specialized security needs may need to upgrade to professional-level devices. Such systems are used not only for live surveillance, but also for for security recording purposes. To find the right CCTV system, one must keep in mind the various features available. Every business and individual has specialized security needs, and finding the right system will be a matter of meeting those needs as thoroughly as possible.

Color or Black and White?

One major choice that those looking for professional-grade systems must make is between black and white systems and color. While color does tend to have better overall detail, black and white systems do tend to show better contrast. For those looking for a less expensive solution, black and white is almost always a better choice. The majority of modern systems, though, feature color camera output, and thus tend to have varying levels of quality. Between the few HD cameras on the market and the far more common standard definition color units, the choices are actually quite difficult for many to make.

_Onboard Recording vs. DVR

The next division within the professional monitoring equipment tends to be between those with centralized recording systems and those with individual camera memory units. The latter is far more common, though those with the onboard units do have their place. Central units are generally better for those that need to have constant monitoring services, while onboard memory tends to work better for those that need constant surveillance without monitoring equipment. Both tend to use basic forms of computer memory, and replacing and upgrading the units are both relatively inexpensive.


Monitor System Choices

Finally, one must consider the necessity of the monitoring equipment itself. The most common choice is a single, simple monitor with the necessary tools to switch between camera angles. Also common, though, is a bank of monitors that can allow a single security officer to view multiple cameras at one time. Splitting the difference between the two are the multi-monitor setups that feature a "master" monitor with a larger image of a single camera with smaller monitors that may allow for views of several other cameras at once. The choice between such monitors generally comes down to the level of attention paid to each camera and the number of cameras purchased.

If you want to use a professional CCTV system, you must always take the time to consider your own needs. Make sure that you have the right cameras, the right kind of memory units, and the right kind of viewing systems for your business or home. Always avoid buying systems simply based on price and try to find a unit that actually suits your own needs. There are many different models on the market, but not all models can suit all needs. Make sure to take your time in making your choice, and always be careful to choose a brand that suits your budget.