When it comes to the security of their business, the tranquility of the lives and health of their loved ones, need to carefully approach the aspects of the elections security system. This article will try to understand the diversity of security systems, focusing its attention on how to select the most suitable for your needs a system of video surveillance, explain what they are and try to understand what parameters should pay special attention when choosing a security video surveillance system.

To get started, here are the classification. Video surveillance systems, depending on where they are used are internal streets and hidden. Regardless of the type of video surveillance system designed to provide visual observation of the object using video cameras. With the help of one or more video cameras, they can monitor the protected object as the one, and different locations.

To date, there are digital and analog video surveillance system. At the core of analog video surveillance system built using analog recording and playback of video (VCRs, multiplexers, monitors). Thus the signal transmitted from camera to monitor video surveillance is the same as a normal television signal. A major disadvantage of not allowing today analog video surveillance system to compete with digital systems, this low speed recording and low quality images. Digital video surveillance system based on the principle of binary encoding information that allows several times to increase their speed reading and recording of information, improves the quality of the signal transmitted by the camera, improves the scalability of the network, allowing, if necessary, add in the running system additional sensors and cameras. It is also worth noting the low cost of operating a digital video surveillance system.
Color images.

Video systems are colored and black and white. The benefits of recent obvious: a higher resolution and as a result, almost unlimited possibilities of detail photos, excellent sensitivity in the dark and dim lighting conditions (the protected perimeter of the facility, warehouses), a lower cost. However, color image provides a picture of more information on the site monitoring and if necessary would greatly facilitate the identification and tracing the attacker.
Type recorder

Systems based on self-registrar, which is a device that connects to a video camera, characterized by greater specification. To work with the equipment and its maintenance requires skilled professionals. These costs are offset by the fact that the device is initially targeted and configured to perform security tasks. Systems based on a personal computer, where the PCI-slot PC card installed special video capturing, which handles the images coming from digital cameras.
Operation of video surveillance system.

There are several options for activating the security system:

* Alarm traffic. Chambers worked at a time when the sensor records the existence of a moving object in the field of observation. Using this system saves resources of the system facilitates the retrieval of information in the processing of incoming information for the reporting period.
* Srabatyvanie lengthy probe. The system is activated at the time of operation of volumetric sensor signals the emergence of the object of any nature in the protected zone.
* For a signal access control system. This option is effective when installing the system at checkpoints or entry of enterprises.
* According to the schedule. Activation occurs within a certain operator intervals.

Options videos.

You can configure the number of frames per second in the exercise video. Increased number of frames per second allows you to the nearest dolisekundy record event, but it imposes some restrictions on the performance of the hardware that is included in a protection package. Specialists Access-Electronics, which has over 7 years is the installation of security systems, agree that in real life is sufficient if the recording speed will be approximately 6-7 frames per second. This will enable the fully restored picture not miss the details, and to avoid redundancy.

View the video can be made directly from the device, which made a record or remotely on the LAN or via the Internet. This will create a semblance of a central observation post inside the protected object, or at any time, anywhere in the world abreast of the situation at a particular controlled by the facility. You can also transfer information to removable media.

When selecting cameras worth paying attention to the following: Resolution (Low - 380 TV Lines, Medium - 470 TVL, High - 600 TVL), sensitivity (Low - 1, Luke (deluxe), Medium - 0.5 Luke, High - 0002 Luke ), The presence of the microphone allows you to record additions to the image and sound features to increase the remote cameras, the focal length, which is defined angle camera (the smaller the angle, the higher the degree of detail available images).