Patent ID: 8565725

Claim:
A secured system for controlling the opening of lock devices, comprising: at least one lock device provided with electronic circuits for controlling locking/unlocking mechanical members; a mobile phone at the disposal of a user authorized to open the lock device; a remote management site; and a mobile network operator, coupled to the management site and to the mobile phone, the system being characterized in that: the remote management site comprises: a database of lock devices and authorized users with, for each user, a unique identifier associated with a mobile phone number, and data about access rights and conditions of use, and a generator of accreditation data, the accreditations being encrypted acoustic accreditations in the form of single-use audio signals, adapted for allowing the opening of the lock devices that are indexed in the database; the system comprises means for secured transmission of said accreditation data from the management site to the mobile phone of the corresponding authorized user; the phone comprises an electroacoustic transducer capable of reproducing said acoustic accreditations; the lock device comprises an electroacoustic transducer capable of picking up the acoustic accreditations reproduced by the phone's transducer previously placed in the vicinity of the lock device; and the lock device comprises means for recognizing, analyzing and authenticating the acoustic accreditations picked up by the transducer, and operating the unlocking of the mechanical members upon recognizing a compliant accreditation.