Patent ID: 7664464
Filing Date: 2010-02-16
Classification: G07C

Abstract:
1. A method for the exchange of data between a mobile communications unit carried by a user and at least one of an elevator terminal, a transmitter/receiver unit and a computer unit, wherein the elevator terminal, the transmitter/receiver unit and the computer unit are positioned at different locations in an environment, wherein the elevator terminal frees access to an elevator and the transmitter/receiver releases an electronic door lock of a door; wherein the method comprises the following steps: a) establishing contact between the mobile communications unit and a first elevator terminal disposed in the vicinity of the elevator at a first floor when the first elevator terminal and the mobile communications unit are spaced from one another at a predetermined distance, wherein a near-field radio connection is generated within the distance; b) exchange of data between the mobile communications unit and the first elevator terminal by the near-field radio connection, whereby a list with locked access codes stored in the first elevator terminal is transferred from the first elevator terminal to the mobile communications unit and is temporarily stored in the mobile communications unit; c) communication of data from the first elevator terminal to the computer unit, which computer unit is connected with the first elevator terminal; d) establishing contact between the mobile communications unit and the transmitter/receiver unit when the transmitter/receiver unit and the mobile communications unit are spaced from one another at the distance, wherein a near-field radio connection is generated within the distance; and e) exchange of data between the mobile communications unit and the transmitter/receiver unit by the near-field radio connection, whereby the list with locked access codes temporarily stored in the mobile communications unit is transferred by the mobile communications unit to the transmitter/receiver unit and stored in the electronic door lock.