About security cameras system

Security cameras are of different styles:   • bullet camera with a cylindrical shape and an integrated lens is weatherproof and designed for outdoor use   • Domes, dome-shaped lens and a built-in, are generally used indoors, although some of them with a “bulletproof”, which can be used outdoors   • C-Mount camera or “box”, a rectangular shape and a lens attached to that person, only inside, if in a separate enclosure for outdoor use are included. These cameras are usually commercial   • Hidden camera in several forms, including a super-small cameras “eye” type, which simply disappears, or the hidden cameras that are designed to look like something else, like a teddy bear, the head of smoke detectors or sprinklers. These cameras are generally designed only for indoor use and are built into the lens.   Your choice for each security cameras in the system, either inside or outside depends, to set the size you need glasses, the resolution (higher resolution, more images), if you spend the night, you must mount the type of infrared (requires to put it on the wall, the ceiling must be installed in a column, etc) and, of course, budget.   3.6 mm lens can get a wide-angle camera, no image distortion. This will provide detailed procedures for the face to 30 meters. For more information, versus 30 feet from the camera, then you need to aim higher mm. mm main objective will further reduce the focal length and angle. Vario-lenses (eg, from 5 to 100 mm) and zoom camera. This is useful if you do not know what target size needed to advance.   You can also choose which type of digital video recorders (DVR), camera recording. Most digital video recorders are available in 4, 8 or 16 camera inputs (also known as “conduits”) version, however, and DVR models, which saves at least 64 cameras. Remember that the addition of a camera innings later, the existing DVR, in general, it is not possible, so that you can do to ensure future growth. Looking for a DVR with a “real time” recording at 30 frames per second (fps) for the camera. DVR also differ in the compression technology they use. The best compression technology compresses video data, so you can save a little space on your hard drive, and lose less information (image quality) in this process. Compression of the oldest (worst) to last (above) are: J-PEG, M-JPEG (also known as MPEG), MPEG4 and H.264. Next, determine how much disk space you need. If you use the disk space, video files on the old DVR on reboot. Many people want from 2 to 4 weeks to save the recorded video on the hard disk. Other features of DVR are looking for remote monitoring and control, audio support and ease of operation and backup event.   In the end, all cables and connections to the camera and digital video recorder, and connect the video signal from the camera to the recorder. There are two basic approaches to system wiring: cable connectors and play, climb against the use of RG59, which is more secure (fewer problems with noise), however, forces him to use a fork. With plug and play cable is easier, but it is only reliable when the cable is less than 100 feet, and no fluorescent lighting in the building is used instead of infrared cameras, high-performance. Your insurance provider can help determine if all the connections and the parts you need.