Facilitates access control in secure areas indoors. Typical usage: passenger traffic ticket and access control points, airports/seaports, authorized personnel entry points, passenger flow direction, access control points in secure buildings (e.g. federal facilities, including border crossings, departments, other agencies and branches, ticket control and fee collection points at museums, theaters, exhibitions, fairs, arenas, pay tiolets, ticket control points in sport facilities, e.g. wimming pools, stadiums, other multi-purpose arenas, access control and TNT systems in the workplace, e.g. offices, special areas in factories.