A security camera system basically consists of a series of security cameras, digital video recorder to record the cameras and wiring and connectors to connect everything together.
Security cameras are available in a variety of styles:
• bullet camera, with a cylindrical shape and fitted with a lens are weather resistant and are ideal for outdoor applications
• Domes, a dome shape and an integrated internal lens, are generally used, although some have a "reservoirHousing ", which can be used outdoors
• C-mount or "box" cameras, with a rectangular shape and a lens that is selected and installed separately, is limited to internal use, because it is enclosed in a separate enclosure for outdoor use. These cameras are generally used in commercial
• Hidden cameras can come in a variety of forms, including super-small "eye" type cameras that can be easily concealed or hidden cameras that are designed to look like something else, suchlike a teddy bear, a smoke detector or a shower. These cameras are designed for internal use only and have a built-in lens.
• Pan - Tilt - Zoom (PTZ) to allow a remote operator to pan (back and forth), tilt (up and down) and zooming the lens and are usually large and can be used indoors or to ' open.
Your choice for each camera on your system, whether it be installed inside or outside, what lens size you need to hang the resolution (the highestthe resolution the sharper the image), consider whether you need infrared for night, and the mountain-type (you need to put on a wall, ceiling, pole mount, etc.) and of course your budget.
It can get a 3.6 mm lens offers the widest angle of a camera does not distort the image. This will provide detailed expression to about 30 meters. If you need more details of the face of 30 meters from the camera, then you need a higher goal mm. It will be a higher goal mmAnother focal length, but reduces the viewing angle. Vario-lenses (eg 5 to 100 mm) are available, varying the focal length of the camera. This is useful if you are not sure what size lens you're going to have to before.
They also want to choose which type of digital video recorders (DVRs), you must register the cameras. Most DVR 4, 8 or 16 camera inputs (also known as "channel") versions, although it can DVR models, up to 64 records areCameras. Remember that the addition of camera inputs available following a DVR is not usually possible, so that you'll want to provide for future growth. Looking for a DVR recording with a 'real time' to 30 frames per second (fps) per camera. DVR also differ in the compression technology they use. The best compression technology compresses the video data so that the smallest space can be stored on the hard drive, and loses the least amount of information (image quality) in the process.Compression technologies, from the oldest (lowest) to newest (at best) are: J-PEG, M-JPEG (also known as MPEG), MPEG4 and H.264. Next, determine the amount of disk space you need. If space on your hard drive is sold out, the DVR is recording the oldest video on the system will reboot. Many people choose 2 to 4 weeks to keep the video recorded on the hard drive. Other features include the search for a remote DVR monitoring and operation, audio support and ease of use and backup event.
Finally, you canall cables and connectors to power the cameras and the DVR and connect the video signal from the cameras to the DVR. There are two basic approaches to the wiring system: With plug-and-play cable, connections with pre-vs. RG59 cable, which is more shielded (so less problems with noise), but requires that the connections are still have. . With cable plug and play is simple, but reliable only if the cables are less than100 meters, and neon lights located in a building is used, and without high-performance infrared cameras are used. Your security dealer can help determine if all the connections and the necessary parts.
Other products that are in the design of the camera system and surge protection, a safe deposit box to protect the DVR and a monitor for viewing the cameras directly from the DVR (from across the network).
After providing all the componentsCameras connected to the DVR, and a monitor connected, you should read your cameras away. The DVR software allows you to customize your application to display features such as network and motion detection.
