The security systems is a device to be used as evidence in identifying a person, consisting of CCTV Camera (closed circuit television) connected to a web network. Use with the higher quality cameras they are usually placed near entrances, hallways, stairways, or parking areas that anytime can monitored. The CCTV, or the closed circuit television is the industry standard in surveillance cameras, can be a single or multiple network of cameras linked together via switches, internet or wide area computer technology. Video data is analog but can be converted to digital via CCTV Digital Video Recorders. For the interior surveillance spaces of the building it is better use a wider angle camera lens with a color monitor to identify a person by the clothes they are wearing. Then the digital video data can be automatically saved in the storage devices.
There are many types of CCTV Camera available on the market, and with this notes who want to find its can decide what options should be choose.
1. To get the right positions, distances and the target area, the first step should be done is to make sketch about the surveillance zone before the cameras would be located. Then the size of zoom can be chosen.
2. To fix the covered area of surveillance from the planed camera locations it is necessary to take photos of the proposed areas, to know what is or how far and how wide the viewing areas want to see. Depend on this study, the type of lenses can be decided.
3. Which lenses would be the maximize of surveillance potential are determined by each camera location either want to capture a person face or a car license plate.
4. Damage resistant cameras are available at the market, if the camera would be located at the position subject to damage by vandalism this type of camera may be the right one to be chosen.
5. There are two kinds of CCTV Cameras, the infrared cctv cameras and the low light cameras. If lighting at the covered of surveillance are turned off at night the infrared cctv cameras are the right one to be chosen used.
6. Many types of CCTV Cameras available at market each camera have their features, the higher features would be offered at the higher price. Any type of the camera can be chosen depend on the budget but one should be keep in mind that a low cost camera is better than no camera at all.
