Articles and utilizable objects e.g. bicycle, entry monitoring method for e.g. building, involves transferring user release code to release device, and decontrolling articles and code alteration device after positive verification of code

摘要

The method involves transferring a user release code from a central processing unit to a release device (12) via a mobile telephone (3). Articles and code alteration device (16) are decontrolled by the device (12) after positive verification of the code. An alteration code is entered in an input unit of the device (16) by a user, so that the alteration code becomes a new release code that is transferred to the unit by the telephone.