Controller chair
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Solution Overview
Problem
Existing wellness systems fail to generate signals based on the specific movements of a user's torso, left arm, right arm, left leg, and right leg, limiting their interactive capabilities with video and other sensory feedback systems.
Innovation Solution
A controller chair design featuring pivotable seat and backrest portions, arm, and leg holding structures, equipped with rotation angle detecting sensors and airbags for secure user positioning, allowing for the generation of signals corresponding to these movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single exercise load providing means is used to detect physical exercise, then the device complexity is reduced, but the measurement precision of specific body part movements is insufficient
Solution Approach 1:
The patent divides the detection system into five separate rotation angle detecting portions, each dedicated to detecting movements of specific body parts (torso, left arm, right arm, left leg, right leg). This segmentation allows precise measurement of each body part's movement independently, resolving the contradiction between measurement precision and device complexity by distributing detection functions to specialized components.
2Measurement precision
If multiple rotation angle detecting portions are added to detect each body part movement, then the measurement precision improves, but the device complexity increases
Solution Approach 1:
Each rotation angle detecting portion serves multiple functions: it detects rotation angle, determines movement direction, calculates movement amount, and generates control signals for the video display system. This multi-functionality reduces the need for separate components for each detection task, thereby improving measurement precision while limiting the increase in device complexity.
3Reliability
If airbags are added to fix user positioning on arm and leg holding portions, then the reliability of user positioning is improved, but the device complexity increases
Solution Approach 1:
The patent uses airbags (pneumatic elements) to provide adjustable positioning support for the user's arms and legs. The airbags can be inflated or deflated to accommodate different user sizes and positioning requirements, improving reliability of user positioning while maintaining relatively simple device complexity through the use of a single pneumatic system for multiple holding portions.
Data Source
AI summary
A backrest portion supported, such as to be pivotable around an axis extending along its width direction center line, by a base, a left arm holding portion projecting forward from a left side portion of the backrest portion and supported, such as to be pivotable up and down around its base end portion, by the backrest portion, a right arm holding portion projecting forward from a right side portion of the backrest portion and supported, such as to be pivotable up and down around its base end portion, by the backrest portion, a left leg holding portion extending downward from a vicinity of a left side portion of a front edge of a seat portion at a front side of the base and supported, such as to be pivotable up and down around its upper end portion, by the base, and a right leg holding portion extending downward from a vicinity of a right side portion of the front edge of the seat portion at the front side of the base and supported, such as to be pivotable up and down around its upper end portion, by the base are included.