SYSTEM FOR MANAGING AND CONTROLLING ACCESS TO CODES, WITHOUT KEY OR PORTABLE OBJECT, CORRESPONDING ACCESS CONTROL DEVICE AND ACCESS CODE ACQUISITION DEVICE

摘要

The invention concerns a system for managing and controlling access to a site and/or a service for a plurality of users. It comprises at least a control device itself including: first means for obtaining a plurality of access codes each associated with a validity time slot, means for direct code input by the users, and means for comparison between an access code input at a given time by a specific user and the access code(s) obtained by the first code-acquisition means and whereof the associated validity time slot includes the given time. The comparison means generate an authorisation command or an access denial, depending on whether the comparison is positive or negative. The system further comprises at least a device for obtaining access codes including second means for obtaining at least part of a plurality of predetermined access codes and/or calculated in accordance with a predetermined programme. The access codes obtained with said at least code-acquisition device are communicated to the users.