What is analogue cameras and IP cameras?

ANALOG CAMERAS – These are your standard type of security camera. Analogue signals can also be converted into a digital signal to enable the recordings to be stored on a PC as digital recordings. After the signal is converted to digital, it can be recorded through the use of a digital video recorder (DVR). Such a device is similar in functionality to a PC with a capture card and appropriate video recording software. Unlike PCs, most DVRs designed for CCTV purposes are embedded devices that require less maintenance and simpler setup than a PC-based solution, for a medium to large number of analogue cameras.

IP CAMERAS – A growing branch in CCTV is Internet Protocol Cameras (IP Cameras). IP cameras allow homeowners and businesses to view their camera(s) through any internet connection available through a computer or a 3G phone.

IP cameras are Closed-circuit television (CCTV) cameras that use Internet Protocol to transmit image data and control signals over a Fast Ethernet link. As such, IP cameras are also commonly referred to as network cameras. IP cameras are primarily used for surveillance in the same manner as analog closed-circuit television. A number of IP cameras are normally deployed together with a digital video recorder (DVR) or a network video recorder (NVR) to form a video surveillance system.

The terms IP camera and network camera are most commonly used to refer to surveillance cameras with a Fast Ethernet interface. In this context, the term IP camera does not include GigE vision camera, which is a machine vision camera with a Gigabit Ethernet interface. Internet Protocol is a protocol used for communicating data across a packet-switched network using the Internet Protocol Suite, also referred to as TCP/IP. As with digital still cameras, the resolution of IP cameras has increased with time. Megapixel IP CCTV cameras are now available at resolutions of 1, 2, 3, 5 and even 11 megapixels. Today there are many manufacturers of IP cameras. IP surveillance equipment vendors include both specialized digital imaging equipment manufacturers and larger manufacturers that are active in consumer, broadcast, and security video.

MEGAPIXEL CAMERAS – In some situations where standard-definition video cameras (either analog or digital) are used, the quality is going to be poor because the maximum pixel resolution of the image chips in most of these devices is 320,000 pixels (analogue quality is measured in TV lines but the results are the same); they generally capture horizontal and vertical fields of lines and blend them together to make a single frame; the maximum frame rate is normally 30 frames per second. That said, multi-megapixel IP-CCTV cameras are becoming more popular. They can capture video images at resolutions of 1, 2, 3, 5 and even up to 11 Mpix. Unlike with standard definition (digital or analogue) cameras, details such as license plates are easily readable. At 11 Mpix, forensic quality images are made where each hand on a person can be distinguished. Because of the much higher resolutions available with these types of cameras, they can be set up to cover a wide area where normally several analogue cameras would have been needed.

Cameras and video recording systems offer a high level of security.

Having the ability to capture a crime in progress will greatly help the authorities convict the suspects. We have all seen video footage on the news of crimes captured on video.

Video surveillance is the best way to monitor activity on your premise, regardless if you are there or not.

Systems now offer more then simple recording. With the new technology, you can remotely assess your camera system on the internet. Some offer access with your 3G phone. Digital Video Recorders (DVR) can also alert you of events via email. Event emails can be directed your mobile phone. Video surveillance has come a long way from the days of the VCR tapes.

At G&A Lock and Security, we offer many solutions to be able to monitor your premise with video technology. We are a Bosch dealer and have had much success with their premium camera technology.

As there is an extremely wide range of video technology for your security needs, we will help find the solution that is best fit for you and your budget. Have one of our security specialists help you with a free consultation.

Securing your premise with a video surveillance system is a step to greater peace of mind.


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