Tri-Axial Accelerometer Sensor for Posture Feedback
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Solution Overview
Problem
Conventional biomechanical sensors for postural feedback are often bulky, uncomfortable, and require garments or belts for attachment, making them inconvenient and visually unappealing, while also depleting battery power quickly due to reliance on wireless communication for data processing.
Innovation Solution
A tri-axial accelerometer-based sensor device with a microprocessor that normalizes data and provides real-time postural feedback through an actuator, allowing for continuous data gathering and minimizing energy consumption by performing local processing and analysis, and can be attached to the body using flexible adhesives or clips, enabling comfortable and flexible use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional biomechanical sensors use wireless communication for data processing, then real-time postural feedback is achieved, but battery power is depleted quickly
Solution Approach 1:
The patent pre-processes and normalizes accelerometer data locally using an onboard microprocessor before transmission. By performing data normalization, posture determination, and feedback triggering locally rather than relying on continuous wireless communication for processing, the system reduces the frequency and intensity of wireless transmissions, thereby conserving battery power while maintaining real-time feedback capability.
2Stability of the object's composition
If conventional biomechanical sensors require garments or belts for attachment, then sensor stability is improved, but device comfort and visual appeal deteriorate
Solution Approach 1:
The patent employs a flexible adhesive patch as the attachment mechanism for the sensor device. This thin, flexible substrate allows the sensor to conform to the body's surface contours, providing stable attachment without requiring bulky garments or belts. The flexible nature of the adhesive patch enhances user comfort and eliminates visual concerns associated with traditional attachment methods.
3Extent of automation
If conventional biomechanical sensors are made bulky for data processing, then processing capability is improved, but device comfort and portability worsen
Solution Approach 1:
The patent replaces bulky mechanical data processing systems with a compact microprocessor-based electronic system. The microprocessor performs local normalization of accelerometer data and determination of posture descriptions, eliminating the need for large mechanical components. This electronic substitution enables sophisticated data processing within a small, lightweight form factor that maintains comfort and portability.
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 solution provides effective, real-time postural feedback that is comfortable and energy-efficient, allowing for continuous monitoring of posture and movement states without the need for bulky attachments, thereby improving user experience and reducing battery drain.
Implementation Method 1
receiving by a microprocessor at repeated intervals data from a tri-axial accelerometer
Data Source
AI summary
A system and method are described herein for a sensor device which biomechanically detects in real-time a user's movement state and posture and then provides real-time feedback to the user based on the user's real-time posture. The feedback is provided through immediate sensory feedback through the sensor device (e.g., a sound or vibration) as well as through an avatar within an associated application with which the sensor device communicates.