Low-energy detection of a transponder by means of read unit and a system for identity determination and/or authorization determination, optionally in the form of a locking system

System (10) for identity determination or/and authorisation determination, and if appropriate for enabling or preventing a logical or/and physical access to a destination device, comprising:

• a first unit (12), which may be associated with the destination device, and which has a determination device (14) which is designed to determine, on the basis of a preferably encrypted or/and bidirectional data exchange via a first wireless interface (16, 18) of the first unit with a second unit (100), an identity or/and an authorisation, the first wireless interface being designed for wireless data exchange over a first range;
• at least one second unit (100) which is associated with the first unit (12), and has a notification device (108), which is designed to notify to the determination device (14) of the first unit (12) an identity or/and an authorisation, on the basis of existing identification data or/and authorisation data and of the data exchange which is carried out via the first wireless interface and a second wireless interface (110, 122) of the second unit over the first range;
• characterised by
• at least one portable ident medium (50), which carries at least identification data and has an ident medium wireless interface (52, 54), which is designed for wireless readout or transmission over a second range at least of the identification data or of identification data or/and authorisation data which is supplied on the basis of this identification data by a determination device (56) of the ident medium in the case of a positive determination of an identity or/and authorisation;
• the notification device (108) of the second unit (100) also being designed to receive at least the identification data or/and authorisation data of the ident medium via a third wireless interface (102, 104, 106;
• 102, 105) of the second unit and the ident medium wireless interface (52, 54) over the second range, or to read it out from it, and to use this data or identification data or/and authorisation data which is supplied on the basis of this data by a determination function of the notification device (108) of the second unit (100) in the case of a positive determination of an identity or/and authorisation as existing identification data or authorisation data for notification of an identity or authorisation to the determination device (14) of the first unit (12).