Technique for Noise Immunity Analysis of Access Control Systems Using Electromagnetic Topology Method

Access control systems are a set of software and hardware for restricting and registering the entrance and exit of objects to a given territory through special passages. Reliable functioning of these systems is an important element of security facilities. Electromagnetic interference can lead to disruption of the functions of access control systems. The paper proposes technique for noise immunity analysis of access control systems under external electromagnetic influences using electromagnetic topology method. An electromagnetic topological model is constructed that takes into account all the basic mechanisms and ways of exposure to external electromagnetic interference. The mathematical formulation of the criterion for violation of the noise immunity of access control systems is determined. The mechanisms of the impact of electrostatic discharge as the most likely and dangerous source of interference for access control systems are considered.