Body Composition Detection Method and Device
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Solution Overview
Problem
Bioelectrical impedance analysis (BIA) based body composition detection methods face accuracy issues due to humidity on the skin surface, leading to inaccurate measurements when the user's feet or hands are sweaty or moist, especially after exercise or showering.
Innovation Solution
A body composition detection device equipped with a dehumidification assembly that removes moisture from the skin surface before impedance measurement, ensuring accurate body impedance readings and improved composition detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If BIA measurement is performed on a body surface with moisture, then the measurement process can be conducted immediately without additional processing, but the measurement accuracy deteriorates due to large impedance measurement errors
Solution Approach 1:
The patent applies preliminary action by introducing a dehumidification assembly that performs dehumidification processing on the body surface before the impedance measurement is conducted. This preliminary removal of moisture ensures that the subsequent measurement is performed on a dry surface, thereby maintaining high measurement accuracy while still allowing the user to measure immediately after exercise or showering without manual drying.
2Measurement precision
If a dehumidification assembly is added to the detection device, then the measurement accuracy is improved by removing moisture from the body surface, but the device complexity increases
Solution Approach 1:
The dehumidification assembly is designed with multi-functionality, serving both as a dehumidification device and as part of the overall measurement system. The same assembly that removes moisture can also serve as a contact interface for measurement, reducing the need for separate components and minimizing the increase in device complexity while still achieving the goal of improving measurement accuracy.
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 device enhances the accuracy of body impedance measurement and composition detection by ensuring a dry skin surface, thereby providing reliable and precise results.
Implementation Method 1
the dehumidification assembly dehumidifies a body surface in contact with the impedance measurement assembly
Implementation Method 2
When different weak currents pass through a human body, fat, muscle, and other components in the human body have different electrical conductivity, and generate different body impedance
Data Source
AI summary
A body composition detection method and a device (100) are provided. The device (100) includes a housing (2), a support layer, and at least one detector (101, 102, 103, or 104). The detector (101, 102, 103, or 104) includes an impedance measurement assembly and a dehumidification assembly. The support layer includes a processor. Both the impedance measurement assembly and the dehumidification assembly are electrically connected to the processor. The impedance measurement assembly, the dehumidification assembly, and the processor are all disposed inside the housing (2). The impedance measurement assembly is embedded on an upper surface of the housing (2). An upper surface of the impedance measurement assembly is flush with or higher than the upper surface of the housing (2). The upper surface of the impedance measurement assembly is in contact with a human body during measurement.