Token-Based User Control for Handheld Craft Tools

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Solution Overview

Problem

Conventional handheld devices are prone to incorrect operation and safety risks, especially when used for complex or delicate tasks, due to the lack of user-specific control and authorization, leading to potential misuse and operational inefficiencies.

Innovation Solution

A token-based system that identifies users and assigns personalized authorization profiles to craftsman's devices, allowing or restricting access and usage based on user-specific characteristics, qualifications, and occupational safety conditions, ensuring secure and error-proof operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional handheld devices are controlled directly by the user, then the ease of operation is improved, but the operational safety and error robustness deteriorate

Engineering Contradiction:
Improveease of operationVSAvoidoperational safety
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent introduces a token as an intermediary device between the user and the handheld device. The token contains a processor that receives control inputs from the user and translates them into device-specific control signals. This intermediary layer ensures that users without specialized knowledge can operate delicate tasks safely, as the token processes and validates commands before they reach the device, thereby improving operational safety while maintaining ease of use.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If user-specific authorization control is implemented, then the operational safety is improved, but the device complexity increases

Engineering Contradiction:
Improveoperational safetyVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the authorization control functionality from the handheld device itself and places it in the token. The token contains the processor and memory that store user-specific authorization profiles and control logic. This separation means the device remains relatively simple while the token handles the complex authorization management, improving safety without significantly increasing device complexity.

Inventive Principle:
Principle #2Taking out (Extraction)

3Reliability

If a token-based authorization system is implemented, then the operational safety is improved, but the ease of operation deteriorates

Engineering Contradiction:
Improveoperational safetyVSAvoidease of operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The token is designed to automatically handle authorization and control functions without requiring manual intervention. When a user presents the token, the processor automatically retrieves the user's authorization profile, validates it against the device's requirements, and enables or disables operation accordingly. This self-service approach improves safety through automated verification while maintaining ease of operation, as users simply need to present the token without dealing with complex authorization procedures.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4140655B1Craftsman equipment having a token for user-related control of a handheld device
Publication Date: 2024.12.25 ADOLF WURTH GMBH & CO KG
  • EP4140655B1 patent drawingFigure 1
  • EP4140655B1 patent drawingFigure 2~4
  • EP4140655B1 patent drawingFigure 5

AI summary

Token (100) for user-related control of a craft tool (102), wherein the token (100) comprises a processor (106) designed for control-related interaction with the craft tool (102), an identification device (170) designed to identify a user of the token (100), and a storage device (128) with stored information indicative of or granting access to a personalized authorization profile of the user with respect to the craft tool (102), wherein the processor (106) is designed, when the token (100) is paired with the craft tool (102), to allow, set, and/or prevent the user from using the craft tool (102) based on the personalized authorization profile.