RFID Near-Field Detection for Safety Harness Interlock Verification
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Solution Overview
Problem
Existing safety harness systems for elevated platforms rely on visual inspections, which are limited in ensuring proper engagement and use of fall restraints, posing risks if restraints are not functioning or not used.
Innovation Solution
A platform system utilizing passive RFID tags and readers for near-field detection of interlocked safety harness components, providing real-time status monitoring and alerts to ensure continuous compliance with safety protocols, preventing unauthorized access to elevated areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If visual inspections are performed to ensure fall restraints are working properly and being utilized, then safety monitoring is provided, but the inspection value is limited and cannot ensure continuous compliance
Solution Approach 1:
The patent replaces manual visual inspection with an automated RFID detection system. The reader automatically detects the presence and engagement status of fall restraints through RFID tags, eliminating the need for continuous human visual monitoring and providing reliable, continuous automated safety verification.
Solution Approach 2:
The patent introduces RFID tags as intermediaries attached to fall restraint components. These tags enable automatic identification and status detection without requiring direct visual contact or manual inspection, allowing the reader to verify engagement status through electromagnetic field communication.
2Reliability
If RFID tags and readers are used for near-field detection of interlocked safety harness components, then continuous real-time monitoring is achieved, but device complexity increases
Solution Approach 1:
The patent extracts the monitoring function from the mechanical interlock itself and separates it into independent RFID components. The RFID tag is attached to one component while the reader is placed on another, allowing detection of engagement status without adding mechanical complexity to the interlock mechanism itself.
Solution Approach 2:
The RFID reader serves multiple functions: detecting the presence of the tag, verifying engagement status, and providing continuous monitoring alerts. This multi-functionality reduces the need for separate detection systems while maintaining comprehensive safety monitoring capability.
3Reliability
If passive RFID tags are attached to interlocking parts for detection, then mechanical wear is reduced and bypassing is prevented, but manufacturing complexity increases
Solution Approach 1:
The RFID tags are attached to fall restraint components during the manufacturing or assembly process before deployment. This preliminary attachment ensures that the tags are already in place and properly positioned, eliminating the need for complex installation procedures at the usage site and simplifying the overall manufacturing workflow.
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
Enhances safety by eliminating the need for visual inspections, reducing mechanical wear, and preventing bypassing of safety measures, ensuring continuous monitoring of safety harness engagement and proper platform usage.
Implementation Method 1
a passive RFID reader coupled to the second part 114 for near field detection of the tag within a prescribed range of the second part 114
Data Source
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AI summary
A restraining system (100) comprises a restraining device (110) including first and second interlockable parts (112, 114) that, when interlocked, restrain the system. The restraining system (100) further comprises a passive RFID tag (120) attached to the first part (112), and a passive RFID reader (130) coupled to the second part (114) for near field detection of the tag (310) within a prescribed range of the second part (114).