New improvements for video surveillance and electronic security are implemented every day and now there are so many types of systems, it can get difficult to get them all straight! Here’s an easy breakdown of the three main types of video surveillance systems: Analog, HDCVI, and IP/Megapixel.
This is the oldest type of video surveillance available on the market. It utilizes analog cameras with coaxial cabling and BNC connectors to record footage on a digital video recorder. The resolution with these systems is usually between 720-1000 TVL. This is a standard D1 resolution of 704×480 (essentially, what you see on a nice 7-11 robbery footage roll). These systems are simple and generally, pretty low resolution. To put it in perspective, this footage is less than 1 megapixel, and the new Galaxy S6 has a 16 megapixel camera on it.
The newest system of the bunch, IP Megapixel camera systems provide a wide range of available resolutions, price points, and system capabilities. Using CAT5 or CAT6 cabling, routers and a network video recorder, IP megapixel camera systems can provide cameras with resolutions between 1 and 40 megapixels! In contrast with analog systems, the IP recording systems also have a more malleable number of “channels” or cameras which can be put into a single machine. With analog systems, you choose either a 4, 8, 16, or 32 channel unit to store cameras. With IP systems, a single network video recorder can hold a variable number of cameras depending on what the resolution of each camera is, and how long the end user needs to store footage. IP camera systems also open doors for remote surveillance solutions and off-site recording.
CVI or HDCVI
CVI stands for “Composite Video Interface” this essentially means that the system is built from various elements, or, that you can use Analog video cabling to connect IP/Megapixel quality cameras. Pretty cool, right? We thought so. With HDCVI, you can get up to 1080P resolution (about 2 megapixels) while utilizing coaxial cabling. This is great for folks who want to upgrade their video quality without ripping apart and re-wiring their whole system.
But what if you only have enough in your budget to upgrade one or two of your cameras at a time? You remember Hybrid units, right? They hold IP and Analog? Well, meet the Tribrid. It’s a machine that records and plays back all three technologies. Analog, IP, and CVI. Upgrading your system just got a lot easier.