Electronic Device Posture Normalization via Coordinate Transformation
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Solution Overview
Problem
Existing techniques for determining a user's posture are ineffective when the positional relationship between the imaging unit and the user changes, as they fail to accurately assess whether the posture is ideal.
Innovation Solution
An electronic device equipped with an acquiring unit to determine the positional relationship, a posture information acquiring unit to normalize posture data, and a controlling unit to provide notifications based on predetermined conditions, ensuring accurate posture assessment regardless of device placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the imaging unit position is fixed to determine posture, then the posture determination is simple, but the system cannot accurately assess posture when the positional relationship between the device and user changes
Solution Approach 1:
The system changes the parameter of coordinate system orientation based on the detected positional relationship between the imaging unit and user. By dynamically adjusting the coordinate system parameters (rotation angles, translation vectors) rather than fixing the imaging unit position, the system maintains accurate posture assessment across different device placements without increasing hardware complexity
Solution Approach 2:
The patent introduces an intermediary coordinate transformation process between the fixed imaging unit and the user's body coordinates. This intermediary step (normalization process) mediates the relationship between device position and posture measurement, allowing accurate assessment regardless of device placement while keeping the imaging unit physically fixed
2Adaptability or versatility
If the device is placed at various positions to increase adaptability, then the ease of operation improves, but the existing technique cannot determine whether the posture is ideal
Solution Approach 1:
The system allows the imaging unit to be placed at various positions (increasing adaptability) while compensating for position changes by dynamically adjusting coordinate system parameters. The normalization process transforms posture data from different device positions into a unified reference frame, maintaining measurement precision across all placements
Solution Approach 2:
The patent creates a universal posture determination system that functions accurately regardless of device placement position. By implementing coordinate normalization that works for any imaging unit position, the system achieves multi-functionality - it can assess posture ideals universally whether the device is placed on the left, right, center, or at different heights
Data Source
AI summary
An electronic device includes an acquiring unit configured to acquire a positional relationship between a subject and the electronic device, a normalization unit configured to normalize posture information of the subject based on a positional relationship acquired by the acquiring unit and a controlling unit configured to perform control to perform predetermined notification in a case where posture information of the subject that is normalized satisfies a predetermined condition, and control not to perform the predetermined notification in a case where posture information of the subject that is normalized is not the predetermined posture.