Body Composition Analyzer With Image Scanning for Stable Electrode Posture
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Solution Overview
Problem
Conventional body composition analysis systems using bioelectrical impedance analysis face inaccuracies due to subject movement and improper electrode placement, leading to inconsistent and inaccurate measurements.
Innovation Solution
A body composition analysis system with an image scanning function that includes handrails with telescopic rods and handles, allowing for adjustable support and posture maintenance, combined with an image capturing device and calculating unit to ensure accurate electrode placement and minimize subject movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the measured person stands on a rotary plate for rotary scanning, then the body composition analysis can be performed, but the measured person will swing or change posture, affecting measurement accuracy
Solution Approach 1:
The handrails are pre-positioned and adjusted before the measurement begins, establishing a stable support structure in advance. The measured person can lean on the handrails before stepping onto the rotary plate, preventing posture changes during the scanning process.
Solution Approach 2:
The handrails act as an intermediary support between the measured person and the rotary plate. By providing this intermediate support structure, the system allows the measured person to maintain stable posture while still enabling rotary scanning for body composition analysis.
2Ease of operation
If the measured person contacts the electrodes with both hands at a small included angle, then the operation is simple, but skin contact or clothing interference occurs, affecting measurement repeatability
Solution Approach 1:
The handrails with telescopic rods allow for dynamic adjustment of the contact position and angle. The measured person can adjust their posture and the handrail position to find the optimal contact point that avoids skin-to-skin contact and clothing interference, while maintaining measurement repeatability.
Solution Approach 2:
The system allows changing the geometric parameters of the measurement configuration by adjusting the handrail angles and positions. This enables optimization of the electrode contact geometry to avoid interference while maintaining ease of operation.
3Measurement precision
If the measured person maintains a certain included angle between arm and trunk, then measurement accuracy improves, but the measured person is liable to swing or change posture
Solution Approach 1:
The handrails serve as an intermediary support that allows the measured person to maintain the required included angle between arm and trunk for accurate measurement. By providing external support, the handrails prevent the measured person from needing to actively maintain posture, thereby preventing swinging or posture changes.
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 system improves measurement accuracy and repeatability by preventing subject movement and allowing for personalized posture adjustment, enhancing the reliability of bioelectrical impedance analysis results.
Implementation Method 1
an image capturing device for capturing image data of a measured person
Implementation Method 2
the four limbs of the measured person contact electrodes of the body composition measuring instrument, and very low current is passed therethrough. By the characteristic that the difference of the water content and cell membrane properties of different tissues in the body results in different resistance and reactance for current of different frequencies, the body water content is obtained.
Data Source
AI summary
A body composition analysis system having image scanning function includes an image capturing device, a body composition analyzer having a stand platform with two first electrode sets, two handrails and a calculating unit electrically connected with the image capturing device, and a control panel. Each handrail has a telescopic rod and a handle having a second electrode set. An end of each telescopic rod is pivotably attached to the stand platform. Each handle is disposed at another end of each telescopic rod. The calculating unit includes a body shape module database and a calculational logic, receives resistance and reactance measured by the first and second electrode sets and image data obtained by the image capturing device, and after comparing the image data with the body shape module database, calculates by the calculational logic to obtain a body composition data to be shown on the control panel.