Integrated Sensor Device for Dynamic Power Transfer Measurement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current devices are inadequate for measuring dynamic interaction and power transfer between bodies during random movements, particularly between a human and a ball or a non-hard surface, limiting the ability to improve performance in sports and assess physical load in ergonomics and prosthetic use.
Innovation Solution
A device comprising kinematic and kinetic sensors, processing means, and communication means is placed between the contact surfaces of two bodies to directly measure power transfer by calculating the internal vector product of force and velocity signals, allowing continuous measurement of power transfer during random movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If force plates are used to measure reaction forces during running on hard surfaces, then force measurement is possible, but power transfer measurement is not achievable because velocity is zero when force is non-zero
Solution Approach 1:
The patent combines kinematic sensors (accelerometers, gyroscopes) and kinetic sensors (force sensors, moment sensors) into a single integrated measurement device. This merging allows simultaneous acquisition of both velocity/acceleration data and force data, enabling power transfer calculation (P=F·v) during dynamic movements where traditional force plates fail to capture velocity information.
Solution Approach 2:
The measurement device is designed with multi-functionality to perform various tasks: measuring forces, measuring moments, measuring accelerations, measuring angular velocities, and calculating power transfer. This universal device can be applied to diverse scenarios including sports analysis, ergonomics, and prosthetic evaluation, overcoming the limitation of specialized force plates that can only measure forces statically.
2Measurement precision
If traditional kinematic sensors are used alone, then movement analysis is possible, but force and power transfer measurement are not achievable
Solution Approach 1:
The patent merges kinematic sensors (accelerometers, gyroscopes) with kinetic sensors (force sensors, moment sensors) in an integrated device. This combination enables simultaneous measurement of movement parameters and force parameters, allowing calculation of power transfer (P=F·v) and comprehensive analysis of dynamic interactions between bodies.
Solution Approach 2:
The integrated sensor device acts as an intermediary between the moving body and the measurement system. By incorporating both kinematic and kinetic sensors, the device mediates the measurement of force transfer and power exchange during dynamic movements, providing comprehensive data for sports analysis, ergonomics, and prosthetic evaluation.
3Force
If force plates are used during running on hard surfaces, then reaction force measurement is possible, but velocity measurement is not available when force is non-zero
Solution Approach 1:
The patent combines force sensors with kinematic sensors (accelerometers, gyroscopes) in an integrated measurement device. This merging ensures that both force data and velocity/acceleration data are captured simultaneously during dynamic movements, allowing complete power transfer analysis (P=F·v) without the limitations of traditional force plates.
Solution Approach 2:
The integrated sensor device continuously measures both force and kinematic parameters throughout the entire movement cycle, including phases where traditional force plates would show zero velocity. This continuous measurement ensures that power transfer can be calculated at all times during dynamic interactions, providing comprehensive data for performance analysis.
Data Source
AI summary
The invention relates to a device for measuring the dynamic interaction, in particular power transfer and work performed, between a first and a second body, in particular during relatively random movements. The device comprises a housing in which at least one kinematic sensor and at least one kinetic sensor is arranged, in addition to processing means for processing the signals from the sensors, and communication means for data exchange with the outside world. The invention also relates to a method for measuring the dynamic interaction between a first and a second body, and a carrier provided with a number of devices according to the invention.