Home security – Types of Security Surveillance System


Cameras are watching you wherever you go – in shops, malls, ATM, and even traffic signals. And now cameras have started making their way into our home. If you are one of those people who still hasn’t invested in a surveillance security system for your home or is looking to upgrade your existing security setup you have come to the right place.

Let’s look at some of the different types of surveillance systems:

CCTV system – These systems are a little bit old school. They have been around since the 80s and even though the resolution of camera unit has changed these systems are pretty much still the same. The setup consists of several cameras connected to a closed circuit running within your residential compound which is attached to a monitoring and storage unit. These systems often have enough storage to keep two months of footage before the storage space is reused. The analog nature of the system is it’s the biggest disadvantage as the quality of the footage is nowhere near its digital counterpart. One advantage is the relatively cheaper cost of the system.

IP system – These systems started popping up with the popularity of the internet. They are entirely digital and use LAN or Internet for collecting a feed from different cameras. The setup consists of individual cameras that broadcast their feed on an IP address within the local network or over the internet. The cameras used with this system are much better than CCTV cameras regarding video quality and can be wired or wireless. Wireless cameras can directly work over Wi-Fi and only need power outlet ( or battery ) to run at any location. IP system has also made it possible to have a remote security camera in places where implementing a CCTV system is not feasible. These remote cameras can work over 3G/4G and so they can be setup wherever you have cellular coverage. The video feed from IP system can be monitored with smartphone apps in real-time. The only disadvantage is that individual camera units for an IP system are more expensive than CCTV ones.

Now let’s have a quick look at the different camera types available to be used in these systems. A security system usually contains more than one type of camera to harness the strengths of the different camera in various situations.

Here are the common types of cameras you will find:

Box cameras – These cameras might not look very nice, but they are robust and get the job done. The lens can be changed according to your needs making them quite adaptable. They are also very affordable.

Dome cameras – These cameras are encased in a dome-shaped housing that not only looks good but also keeps dust off the functioning unit. These cameras can be used both outdoors and indoors.

PTZ Cameras – PTZ stands for Pan, Tilt, and Zoom. These cameras can track motion and follow the moving subject. They are more expensive but provide better control over the footage being captured and can be programmed to scan the area using different patterns.

Bullet cameras – These cameras are encased in a bullet like a shell and usually perform better in low light conditions. They have IR illuminators which enable them to work after dark.

Wide Dynamic Range cameras – These cameras are capable of capturing minute details even in harsh lighting conditions in both ends of the spectrum. They work well in areas with too much sunshine or where bright lights are used.

Wireless IP cameras – These are perfect for use as a remote security camera as they can work directly on Wi-Fi or 4g network. They don’t need physical infrastructure to transmit the feed. The video feed can be monitored in real-time via apps. The only downside is that they cost much more than wired IP cameras.