Patent · US Active

Access control system for controlling access of a user to one or more operating functions of a technical installation

US11468156B2 · kind B2 · utility

0Cited by

14References

18Claims

0Family size

Assignee

Pilz GmbH & Co. KG · DE

Inventors

Christoph ZELL · Scharnhauser Park, DE
Juergen Fleiner · Scharnhauser Park, DE
Raphael Schuchardt · Scharnhauser Park, DE
Peter John Schuster · Scharnhauser Park, DE
Waldemar Friesen · Scharnhauser Park, DE

Key dates

Filing date	Mar 27, 2020
Grant date	Oct 11, 2022
Priority date	—
Expiry date	Oct 6, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG06F2221/2151
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An access control system controls access of a user to one or more operating functions of a technical installation. The access control system includes a receiving device configured to read access authorization data from a mobile data medium and an access control device configured to receive and validate the access authorization data from the receiving device. The receiving device continuously adds a dynamic portion to the access authorization data to create dynamic access authorization data and sends the dynamic access authorization data to the access control device. The access control device, in response to the dynamic access authorization data corresponding to a defined expectation, generates a release signal for those operating functions for which the access authorization data is valid.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.