Gateway Authorization Assignment for Field Devices
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Solution Overview
Problem
Existing methods for assigning access authorizations to mobile operating devices for field devices are cumbersome and lack automation, leading to potential unauthorized access.
Innovation Solution
A gateway system that automatically transmits access authorizations from a central authorization unit to mobile operating devices via wireless communication, with interfaces for short-range and long-range communication, ensuring secure and flexible access management based on location, time, and device-specific permissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual authorization assignment methods are used, then security control is maintained, but the process becomes cumbersome and time-consuming
Solution Approach 1:
The system performs preliminary actions by pre-configuring authorization rules and user profiles in the authorization server before field operations. When a mobile device approaches a field device, the gateway automatically retrieves and transmits the appropriate authorization tokens without requiring manual intervention, thus simplifying the process and saving time.
Solution Approach 2:
The system enables self-service by allowing mobile devices to automatically receive and manage their own authorization credentials through the gateway. The authorization assignment unit autonomously handles credential distribution based on pre-defined rules, eliminating the need for manual authorization management and reducing time loss.
2Productivity
If automated authorization transmission is implemented, then process simplification is achieved, but security risks may increase
Solution Approach 1:
The system implements feedback mechanisms where the gateway continuously monitors the presence and status of mobile devices near field devices. Authorization credentials are dynamically transmitted or revoked based on real-time feedback about device proximity and operational context, maintaining security while enabling automated high-efficiency authorization management.
Solution Approach 2:
The authorization system is made dynamic by allowing credentials to be automatically granted, modified, or revoked based on changing conditions such as device proximity, time of day, and operational requirements. This dynamic approach maintains security through conditional authorization while achieving productivity gains through automation.
3Ease of operation
If access authorization is granted broadly, then ease of access is improved, but unauthorized access risk increases
Solution Approach 1:
The system applies local quality by granting different authorization levels to different mobile devices based on their specific needs, roles, and proximity to field devices. Instead of broad uniform access, each device receives precisely the authorization level required for its specific operational context, facilitating ease of access while preventing unauthorized access through granular control.
Data Source
AI summary
A gateway for assigning an access authorization for a mobile operating device to a field device, including a first interface that wirelessly communicates with the mobile operating device, a second interface that communicates with an authorization assignment device, a memory device that stores an access authorization of the mobile operating device transmitted by the authorization assignment device, authorization assignment circuitry that reads the access authorization of the mobile operating device from the memory device and transmits the access authorization to the mobile operating device via the first interface.