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US 5,932,853 AGranted
Identification system for a lift installation
AssigneeInventio AG
InventorsPaul Friedli, Kilian Schuster, Karl F. Schneeberger
Life of this patent
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AssigneeInventio AG
InventorsPaul Friedli, Kilian Schuster, Karl F. Schneeberger
Estimating the term…
An identification system for a lift installation in which a lift user carries with him an information transmitter. The information transmitter communicates individual data, for example the weight of the lift user, to a recognition device, which files the data in a data bank. Lift users without information transmitters, so-called unauthorized travellers, are detected with the aid of a load-measuring device. A comparator compares the weight in a lift cage with the weight identified by means of the information transmitter to verify the identity of the lift user as the user to whom the information transmitter was assigned. In the case of agreement, a release signal issued to a lift control, which dispatches or otherwise permits operation of the lift cage.
An identification system for a lift installation comprising an information transmitter carried by a lift user, at least one recognition device for reception of reference data from the information transmitter, and means associated with the lift installation for activating the information transmitter when in proximity to the lift installation without intervention by the lift user, detecting data associated with the lift user and for comparison with the reference data of the information transmitter for generating a signal reflecting the results of said comparison.
Dependencies are inferred from the claim text.