DEVICE FOR RECOGNITION AND SECURITY CONSISTING OF AT LEAST ONE BADGE AND A BADGE READER

摘要

The invention relates to a recognition and security device (1) for a system whose use is controlled, in particular used in an alarm system to allow its control to authorized users.The device consists of at least one badge (2) and a reader (3) without contact, associated with the system and provided for reading an identification signal issued by the badge, the badge incorporating at least one integrated circuit (4) comprising on the one hand, a memory inside which is stored an identification code, and secondly, an antenna (5), in particular printed, for the transmission of the identification signal, the contactless reader comprising receiving means ( R) and reading means (LT) of the identification signal transmitted by the badge, the badge (2) further having magnetic means (7) whose field is able to activate at least one component sensitive to the contactless reader and cooperating with the circuit of this According to the invention, said at least one sensitive component (81, 82) is a passive element such as a flexible blade switch which closes under the field of the magnetic means (7), said at least one sensitive component ( 81, 82) controlling, directly or indirectly, all or part of the power supply circuit of the reader (3) without contact. The invention particularly allows the realization of a badge reader to zero consumption when unsolicited.