The basis of any video system is a good camera with a high degree of image detailing. The capabilities and settings of this device depend on the goals that the installation of the surveillance system and the features of the protected object. The vehicle parameter is the detail of the translated picture, which also depends on the angle of viewing of the device and the focal length of the lens. There are special recommendations for the settings of cameras from manufacturers who promise to solve certain problems. A system of coefficients has also been developed that help to establish optimal visibility for specific goals: for example, simply notice and fix a person or accurately identify his personality. Thus, the focal length of the lens is a work of such quantities as a distance to the object and the factor that guarantees the solution of a specific problem. You can use such averaged coefficients:- the detection of a person- 0.25;- identification of the object- 1;- detection (identification) of the personality- 2.5. Example for clarity: in order to fix a person from a 20-meter distance, you will need a camera with a focal length of 5 mm (20*0.25), and for its identification this indicator should already be 50 mm (20*2.5). The details are also affected by the angle of inclination of the chamber, changing which can be achieved by the necessary clarity. The resolution of the device, which is primarily important, is less important, which is primarily the number of pixels of the matrix is ​​indicated in the TWL - television lines. Now on the market there are cameras leading broadcasting in the HD quality. High resolution is useful to systems that put forward strict requirements for the quality of the picture and imply the image processing of the image. For home use, as a rule, devices with more modest capabilities are suitable. It is possible to believe that for high -quality video surveillance, it is enough to choose several analog cameras with a standard set of characteristics, install them and connect them yourself. It is important to design an effective project for monitoring, taking into account the complexity of the object and does not leave “dead zones” - places that slip away from the camera lens. The best cameras for the video surveillance system are those that provide the highest quality of the video, are easy to install and maintain and have a wide range of functions. When choosing a camera for your video surveillance system, be sure to consider all these factors to get the best possible results. https://prostitutkitumeni-sexplanet.com