For a long time past those carefree times when it was possible without excessive fears to ask to look after the child or to water flowers during holiday of almost any of neighbors have already become past. Today, the issue of ensuring the safety of housing is quite acute even in small settlements, not to mention large metropolitan areas. To protect a house or apartment from intruders, to control the work of a nanny or a housekeeper, and just to find out who came to visit not coming to the door - all these tasks are easily solved with the help of modern video surveillance systems, the heart for either of which is the right camera.
Types of video cameras for video surveillance
When choosing the technique for video surveillance, first of all, it is necessary to clearly define what function we want to assign to it:
- fixing the situation in the apartment during the absence of the owners;
- observation of the staircase;
- Observation of the territory near a private house;
- fixation of moving objects falling into the camera lens.
If we are talking about control over the relative small area, it makes sense to install an analog video surveillance system, the image in which is transmitted in the form of pulses. Cameras for analog surveillance systems have a fairly simple appearance and low cost. If the task is to control several objects at the same time, while receiving a picture of good quality, then it is necessary to install a digital video surveillance system. Cameras with digital signal processing cost an order of magnitude more expensive than analog, but they have a wide range of performance and performance, which allows you to get the most efficient system at the output.
The following types of cameras are distinguished by their execution:
- Case . The installation of such cameras is carried out with the help of brackets, while they can be mounted on any surface: wall, ceiling and even the floor. A huge advantage of standard video cameras is the ability to mount almost any lens on them, which allows you to get the right approximation and picture quality.
- Ceiling (domed) . Such cameras have the form of a hemisphere and are intended for installation on a ceiling inside premises. With an infrared module, they can do excellent shooting not only during the day, but also at night. Produced in a white or black casing and with proper installation are almost unobtrusive.
- Miniature . Designed for hidden video surveillance and can have a case of any shape, from round to rectangular.
- Modular. They have the form of a lens mounted on the board. The case of such cameras is not available, since they are designed for flush mounting. For example, they can be installed instead of the door eye in the body of the front door or in the protective housing for outdoor use.
- Camouflaged. A variety of modular chambers built into the smoke detector body or movement.
- Outdoor. Camcorders designed for outdoor (outdoor) video surveillance. They have a special visor that protects the lens from sun glare and precipitation. To protect against vandals, such cameras are recommended to be installed at a height inaccessible without using a ladder.
- Antivandal. Cameras that have a strong metal case and special tempered glass.
- Rotary. Robotic cameras with remote control and programming capabilities. Such cameras can be turned on and off at certain intervals, turn in different directions, giving the maximum coverage of the territory.