System and method for managing usage authorizations based on the use of smart cards

US8271789B2 · kind B2 · utility

Assignee

• Scheidt & Bachmann GmbH · DE

Inventors

• Norbert Miller
• Wolfgang Flugge · Schwalmtal, DE
• Martin Koczwara · Wegberg, DE

Key dates

• Filing date: Aug 13, 2004
• Grant date: Sep 18, 2012
• Expiry date: Nov 2, 2027

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F2221/2149
• WIPO field: Control
• WIPO sector: Instruments

Abstract

Disclosed is a system managing usage authorizations, comprising a central computer system, field devices and smart cards, wherein the system maintains databases containing all information relating to the users, user accounts, user smart cards, field devices and products, establishes and maintains at least at times communication with the field devices, issues instructions based on the available information and transmits to a plurality of field devices, with the field devices maintaining information relating to the smart cards and products so that communication between a field device and a smart card allows at least a portion of the smart card-related instructions to be processed from the instruction list and stored on the field device and to be transmitted to the computer system during the next communication, and wherein the smart cards carry to allow exchange of information with a field device and store instructions.