Pressure Sensing Plate for Body Motion Analysis
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Solution Overview
Problem
Current sports assistive devices, such as somatosensory cameras and G-Sensor inertial sensors, are unable to accurately detect changes in the human body's center of gravity, necessitating the presence of professionals to guide exercises that train core muscle groups and balance ability, limiting their effectiveness outside clinical settings.
Innovation Solution
A body motion analysis system comprising a pressure sensing plate with a matrix of pressure sensors, a data transmission device, and a data processing device that analyzes pressure distribution data to assess sports performance, enabling accurate detection of body motion and providing feedback for improved training.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If current sports assistive devices (somatosensory camera and G-Sensor inertial sensor) are used, then the device can be simple and portable, but the measurement precision of body center of gravity detection is insufficient
Solution Approach 1:
The pressure sensing plate is divided into multiple independent pressure sensing units arranged in a matrix, with each unit capable of independently detecting pressure changes. This segmentation allows precise localization of pressure distribution across the plate, enabling accurate detection of body center of gravity movements while maintaining a modular and manageable device structure.
Solution Approach 2:
The patent introduces a pressure sensing plate as an intermediary device between the user's body and the detection system. This plate distributes and transmits pressure information from multiple body contact points to the processing system, enabling indirect but accurate measurement of center of gravity changes without requiring direct complex sensing of body movements.
2Reliability
If professional guidance is provided for rehabilitation exercises, then the sports performance analysis is accurate and reliable, but the ease of operation and accessibility is reduced
Solution Approach 1:
The system continuously monitors pressure distribution during exercises and provides real-time feedback to users through the processing device. This feedback mechanism guides users through proper form and technique automatically, ensuring reliable exercise execution without requiring constant professional supervision, thereby improving both reliability and ease of operation.
Solution Approach 2:
The system enables users to perform and monitor their own rehabilitation exercises independently. The automated detection and analysis functions allow users to self-assess their performance and receive guidance without external professionals, making the system self-sufficient and highly accessible for home use while maintaining reliable exercise execution.
3Measurement precision
If pressure sensing plate with multiple pressure sensors is used, then the measurement precision of pressure distribution is improved, but the device complexity and cost increase
Solution Approach 1:
The pressure sensing plate is segmented into multiple independent sensing units arranged in a matrix pattern. Each unit detects local pressure changes independently, and the results are combined to provide comprehensive pressure distribution mapping. This segmentation achieves high measurement precision while keeping each individual sensor unit simple and the overall structure modular.
Solution Approach 2:
The patent replaces complex mechanical measurement systems with an electronic pressure sensor matrix that digitally records pressure distribution. This substitution of mechanical sensing with electronic sensing enables precise pressure measurement without complex mechanical linkages or moving parts, reducing device complexity while improving measurement precision.
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
Enables autonomous and effective practice of exercises like Tai Chi and other core muscle training programs by accurately analyzing body motion, providing real-time feedback, and enhancing user performance without the need for continuous professional guidance.
Implementation Method 1
The pressure sensing plate comprises a plurality of pressure sensors arranged in a matrix. The pressure sensing plate is used to sense pressure exerted on the pressure sensing plate by at least two of the user's body parts
Data Source
AI summary
A body motion analysis system is provided. The body motion analysis system includes a pressure sensing plate, a data transmission device, and a data processing device. Two of the user's body parts exert pressure on the pressure sensing plate and the pressure sensing plate senses the pressure to output pressure distribution data. The pressure sensing plate transmits pressure-distribution stream data to the data processing device according to the pressure distribution data. The data processing device processes the pressure-distribution stream data to obtain sports performance of the user.