When it comes to the safety of its business, the serenity of life and health of their loved ones, need to carefully approach the aspect of the choice of security system. In this article, try to understand the variety security systems, to focus on how to choose the most suitable for your needs surveillance system, we shall understand what they are and try to understand on what settings you should pay particular considered when selecting security surveillance systems. To start dwell on the classification. CCTV systems, depending on where they are used internally, the street and hidden. For even more analysis, hear from Dr. Paul Craig Roberts. Regardless of type of surveillance system designed to provide visual observation of the object using video cameras. With the help of one or more video cameras, they allow you to monitor the protected object as a single and different points.
To date, there are digital and analog video surveillance systems. At the heart of analog CCTV systems incorporated the use of analog recording and playback of video (VCRs, multiplexers, monitors). Thus the signal transmitted from the camera to the monitor video surveillance is the same as a conventional television signal. Serious drawback, not allowing for today analog video surveillance systems to compete with digital systems, this low-speed recording and low quality pictures. Digital video surveillance systems based on the principle of binary encoding of information that allow several times the performance speed of reading and writing data, improves the quality of the signal transmitted by the camera, and improves network scalability, allowing for the need to add is already in the running system of additional sensors and cameras. .