Wearable Sensor Selection for User-Specific Measurement Accuracy
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Solution Overview
Problem
Existing mounted sensing devices face accuracy issues due to unstable sensing conditions caused by movement relative to the user and diverse environmental changes, despite using accurate sensors, necessitating a method to enhance measurement accuracy.
Innovation Solution
A method involving a mounted sensing device with a plurality of similar or identical sensors at different locations and orientations, selecting the most appropriate sensor based on wearer-specific conditions, such as position, orientation, and application data, to customize the device for improved accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If sensors are mounted on a mounted sensing device to be worn by a user, then the device can be used in diverse environments and by different users, but the sensing conditions become unstable due to movement and environmental changes, reducing measurement accuracy
Solution Approach 1:
The system dynamically selects and switches between multiple sensors based on real-time conditions including user morphology, device position, and environmental factors. This dynamic adaptation allows the system to maintain measurement accuracy despite changes in wearing conditions, user anatomy, or environment by automatically adjusting which sensor is active at any given moment.
Solution Approach 2:
The system changes operational parameters by selecting different sensors from the set based on varying conditions. The selection criteria include user morphology parameters, device position parameters, and environmental parameters. By changing which sensor is active according to these parameters, the system maintains accuracy across diverse conditions without requiring physical reconfiguration.
2Measurement precision
If the position and orientation of sensors are customized for each wearer to maximize measurement accuracy, then measurement accuracy improves, but the complexity and cost of device customization increases significantly
Solution Approach 1:
The system achieves customized accuracy for each user through software-based sensor selection rather than physical customization. A universal device design with multiple sensors of the same type can serve different users with different anatomies and preferences by algorithmically selecting the optimal sensor subset for each user's characteristics, eliminating the need for manual customization processes.
Solution Approach 2:
Instead of creating physically unique sensors for each user, the system creates a virtual customization layer that copies and selects from the physical sensor set. The selection algorithm effectively creates a customized configuration for each user by choosing which physical sensors to activate, without requiring physical modification of the device or sensors themselves.
3Measurement precision
If multiple similar or identical sensors with different locations and orientations are provided in the mounted sensing device, then the ability to select the most appropriate sensor for each wearer improves, but the device complexity and sensor quantity increases
Solution Approach 1:
The sensor system is segmented into multiple identical or similar sensor units positioned at different locations and orientations. This segmentation allows the system to divide the measurement task across multiple sensors and select the most appropriate subset for each user, rather than relying on a single sensor that must be perfectly positioned for all users.
Solution Approach 2:
The system manages the multiple sensors by changing operational parameters - specifically which sensors are active - rather than changing the physical device configuration. The selection process adjusts the operational state of each sensor based on user morphology, device position, and environmental conditions, effectively managing the quantity of active sensors dynamically.
Data Source
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AI summary
A method for customizing a mounted sensing device comprising a first set of similar or identical sensors having different location and/or orientation, each sensor being adapted to measure at least one first parameter relating to the wearer of the mounted sensing device, the method comprising a sensor selecting step during which at least one of the sensors is selected to be used to measure the at least one first parameter, wherein the at least one selected sensor is selected among the first set of similar or identical sensors based on wearer data indicative of the morphology of the wearer, and based on their respective location and/or orientation such that said selected at least one sensor is the most appropriate for the wearer and/or for measuring the at least one first parameter.