Glove Pressure Sensing With Localized Force Area Correction
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Solution Overview
Problem
Existing sensor systems for measuring pressure on gloves are prone to inaccuracies due to relative parameters, leading to incorrect computation of resultant forces when force is applied only to a portion of the sensor surface rather than the entire area, which can result in inaccurate pressure measurements and potential discomfort or injury during tasks.
Innovation Solution
The method involves detecting forces applied to a sensing area with multiple regions, determining correct and incorrect sensing regions, calculating corrected force measurements based on activation areas and force distributions, and using confidence factors to ensure accurate force localization and measurement, thereby improving the accuracy of pressure calculations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the complete sensor area is used to compute resultant force, then the calculation is simplified, but measurement accuracy deteriorates when force is applied to only a portion of the sensor surface
Solution Approach 1:
The sensor surface is divided into multiple sensing regions, each with its own force sensor. The system identifies which regions are actually activated by applied force and computes pressure only using those active regions, rather than the complete sensor area. This segmentation allows accurate pressure measurement while maintaining computational efficiency by only processing relevant regions.
Solution Approach 2:
Different sensing regions are treated differently based on their activation state. The system applies local quality by identifying correct sensing regions where force is actually applied versus incorrect sensing regions where no force is applied, and computes pressure measurements using only the appropriate local regions rather than a uniform global approach.
2Measurement precision
If multiple sensing regions are monitored to improve accuracy, then measurement precision improves, but device complexity increases
Solution Approach 1:
The sensor is divided into multiple independent sensing regions with individual force sensors. This segmentation enables accurate localization of applied force while keeping each sensing unit relatively simple and modular, making the overall system manageable despite having multiple regions.
Solution Approach 2:
The system monitors all sensing regions but only processes and computes pressure measurements for regions that are actually activated by applied force. This partial action approach improves accuracy by focusing computational resources on relevant regions while avoiding the complexity of uniformly processing all regions regardless of their activation state.
3Measurement precision
If force is applied to only a portion of the sensor surface, then localized pressure measurement is needed, but using only the activated area reduces measurement reliability
Solution Approach 1:
The system applies local quality by treating each sensing region according to its actual activation state. It identifies correct sensing regions where force is applied and computes pressure measurements specifically for those regions, rather than applying a uniform measurement approach across the entire sensor surface. This ensures both localized accuracy and measurement reliability.
Solution Approach 2:
The system uses feedback by continuously monitoring the activation state of each sensing region and using this information to dynamically adjust which regions are used for pressure computation. This feedback mechanism ensures that pressure measurements are consistently derived from correctly activated regions, improving both localized accuracy and overall measurement reliability.
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
This approach enhances the accuracy of pressure measurement on gloves by localizing the active force area, allowing for precise determination of pressure distribution and reducing the risk of injury or discomfort during task performance.
Implementation Method 1
a force applied to a sensing area of a sensor system, the sensing area including a first sensing region and a second sensing region
Data Source
AI summary
A method includes detecting a force applied to a sensing area of a sensor system, the sensing area including a first sensing region and a second sensing region. The first sensing region is determined to be a correct sensing region. The second sensing region is determined to be an incorrect sensing region. An activation area of the incorrect sensing region is determined. A force distribution of the incorrect sensing region is determined. A corrected corresponding force measurement of the incorrect sensing region is calculated based on the activation area and force distribution of the incorrect sensing region.