In the paper within the confines of automating the creating, operating and evaluating the effectiveness of different objects complex security systems, the authors ‘attention is focused on the detection subsystem, as key to ensuring timeliness and reliability of threats attempts identifying, and therefore as directly affecting the effectiveness of the whole security system.
In particular, the particular problem of taking into account the threats detecting means technical characteristics through a formalized description of the detection zones they form is considered. As an example, there is an analytical description of the detection zones of such widely used in complex security systems classes of detection equipment as infrared (active and passive) and radiotechnical in the paper. After preliminary analysis and systematization of information about this classes of technical means and their tactical and technical characteristics, the general expressions covering all possible variations in the formation of their detection zones were obtained, namely: for passive infrared detection means - a volumetric multilevel diagram from which a transition to any particular cases (for example, a surface single-stage detection zone, a solid curtain type detection zone, etc.) is possible; for active infrared devices - plurality of parallel infrared rays diverging from several sources, detection zone type “surface rays barrier”; for radiotechnical devices - detection zones such as ellipsoid of revolution, "drop", elliptical channel surface, etc.
The way of detection devices zones formalizing within the complex security system presented in the article makes it possible to take into account their technical characteristics and to algorithmize the procedures for automated design of the threats detecting subsystems and of evaluating the resulting integrated protection system effectiveness. It can also be used during the synthesis of decision support systems to ensure the safety of various kinds of objects.