The question of reliability and at the same time quality of security systems is the most important criterion for selecting a particular type of security. The most dangerous from this point of view are perimeter systems that virtually in all modifications and technologies are greatly subject to the influence of external conditions and distractions. Due to this fact many false alarms quite often prevents their actual use (at least in civilian areas). This is why we (in the Laboratory of security systems Faculty of Engineering CZU) were searching for a way how to increase the efficiency of employment of the discussed perimeter systems. We wanted to enable problem-free utilization in the commercial area at a moderate price if possible. The solving of the problem by way of minimizing false alarms failed when changed to a different physical principle of detectors. Therefore we chose a different approach – we made a perimeter system with movable and automatic alarm verification.
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