Inductive Anchor Detection in Fall Protection Equipment
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Solution Overview
Problem
Current fall protection equipment lacks effective means to ensure workers are properly anchored to support structures, as existing methods rely on manual checks that can be error-prone and do not account for all types of metals or environmental conditions.
Innovation Solution
Incorporating inductive sensors within fall protection devices that detect changes in resonant frequency to determine if a metal support structure is present, allowing for real-time monitoring and confirmation of proper anchoring, regardless of environmental factors like ice or concrete cover.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual checks are used to verify anchoring, then the device complexity is low, but the reliability of detection is insufficient and error-prone
Solution Approach 1:
The patent replaces manual mechanical checking with an inductive sensing system that uses electromagnetic fields to automatically detect the presence of metal support structures. The inductive sensor generates an electromagnetic field and detects changes in resonant frequency or impedance caused by nearby metal, providing reliable automatic detection without requiring manual intervention.
Solution Approach 2:
The fall protection device performs self-verification by using its own inductive sensor to automatically detect whether it is properly anchored to a metal support structure. The system monitors its own connection status through electrical characteristic changes, enabling self-service detection without external assistance.
2Measurement precision
If inductive sensors are added to detect metal support structures, then the reliability and accuracy of anchoring detection improve, but the device complexity increases
Solution Approach 1:
The patent uses inductive sensing technology that leverages electromagnetic fields and electrical characteristic measurements to detect metal support structures. This substitution of mechanical detection with electromagnetic sensing provides high measurement precision while maintaining relatively simple device architecture through integrated sensor circuits.
Solution Approach 2:
The inductive sensor detects changes in electrical parameters (resonant frequency, impedance) that occur when metal support structures are present. By monitoring these parameter changes, the system achieves high detection accuracy without requiring complex mechanical measurement systems.
3Adaptability or versatility
If traditional detection methods are used, then the device complexity remains low, but the ability to detect various metals and withstand environmental conditions is insufficient
Solution Approach 1:
The patent replaces traditional mechanical or visual detection methods with inductive sensing that uses electromagnetic fields. This approach provides versatility in detecting different types of metals (ferrous and non-ferrous) and maintains effectiveness under various environmental conditions including ice, concrete cover, and extreme temperatures, without requiring complex adaptive mechanisms.
Solution Approach 2:
The inductive sensor serves multiple functions: detecting various metal types (steel, aluminum, copper), operating in extreme temperatures, detecting metals beneath ice or concrete, and providing automatic anchoring verification. This multi-functionality achieves high adaptability through a single integrated sensing mechanism.
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
The use of inductive sensors provides reliable and accurate detection of metal support structures, ensuring worker safety by preventing falls and reducing the risk of equipment misuse, while being immune to external magnetic fields and capable of detecting various metals.
Implementation Method 1
an inductive sensor within the body for sensing whether the support structure is within the area of attachment. The inductive sensor includes an electrical circuit arranged within the body so that a resonant frequency of the electrical circuit of the inductive sensor changes when the support structure is within the area of attachment
Implementation Method 2
using inductive sensing techniques, such as detecting changes to a resonant frequency of electronic circuits of one or more inductive sensors within the fall protection device
Data Source
AI summary
Techniques are described for monitoring and controlling fall protection equipment. For example, the techniques of this disclosure may be used to monitor the connection status of fall protection equipment, e.g., whether or not the fall protection equipment is connected to a support structure. The techniques described in the disclosure may determine whether the fall protection equipment is connected to a support structure based on changes in a resonant frequency of an electronic circuit of an inductive sensor within the fall protection equipment. The inductive sensor may be formed from sets of one or more coils, where a first set of one or more coils and a second set of one or more coils are wound in opposite directions.