RFID Transponder Wireless Operation Area Enforcement
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Solution Overview
Problem
In safety-relevant environments, existing technologies restrict machine operation to stationary points or wired devices, lacking the ability to define and enforce safe, wireless operation areas effectively, which hinders flexible and secure operation.
Innovation Solution
A method utilizing RFID transponders to define and enforce safe, wireless operation areas for mobile devices, where an effective range list is configured and checked to ensure proper operation, incorporating safety measures like unique transponder identification and distance verification, and requiring users to authenticate within specific, named effective ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless operation is enabled without defined effective ranges, then operational flexibility is improved, but safety is compromised
Solution Approach 1:
The system divides the operational space into distinct effective ranges (WB1, WB2, etc.), each associated with specific machines and safety parameters. This segmentation allows wireless operation flexibility within defined boundaries while maintaining safety through clear spatial delimitation.
Solution Approach 2:
Different effective ranges have different safety characteristics and machine associations. The system applies local quality by assigning specific safety rules, machine identifiers, and transponder configurations to each spatial zone, allowing tailored safety control for different operational areas.
2Device complexity
If RFID transponders are installed without verification, then device complexity is reduced, but reliability deteriorates due to configuration errors
Solution Approach 1:
The system performs preliminary verification of transponder installation and configuration through automated reading and checking processes. Before operation begins, the control device reads transponder data and verifies configuration accuracy, preventing erroneous operations from incorrect installations.
Solution Approach 2:
The system implements feedback mechanisms where the control device continuously reads transponder identification numbers and verifies them against stored effective range lists. This feedback loop ensures configuration accuracy and alerts operators to any mismatches or errors.
3Ease of operation
If effective ranges are not clearly defined, then ease of operation is improved, but measurement precision of operational boundaries deteriorates
Solution Approach 1:
RFID transponders serve as intermediaries that physically mark and define effective range boundaries. These transponders act as mediators between the abstract concept of operational zones and the physical space, providing precise boundary definition through their spatial placement and readable identification.
Solution Approach 2:
The system uses visual display of effective range identification numbers and machine names to clearly demarcate operational boundaries. The HMI presents colored or distinct visual indicators for different effective ranges, making boundary precision visible and easy to understand for operators.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables secure and flexible operation of machines in safety-relevant environments by technically defining and enforcing safe wireless operation areas, preventing unauthorized access and ensuring correct configuration and installation of RFID transponders, thus enhancing safety and operational flexibility.
Implementation Method 1
The effective areas are limited by one or more RFID transponders
Data Source
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AI summary
The invention relates to a method for using a mobile operating device (4) with which a machine can be operated within an assigned operating area (EA). For this purpose, an operating area list (EA list) is designed, which is checked based on transponder data from RFID transponders (5).