Biological Information Measurement Support Device Motion Filtering
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Biological information measurement devices worn on the body for extended periods face challenges in accurately measuring data due to body motion changes, leading to unreliable readings and inefficiencies in data collection, as existing technologies do not effectively correct for motion-induced deviations in pulse wave measurements.
Innovation Solution
A biological information measurement device equipped with a pulse wave detection unit, system control unit, and body motion detection unit that calculates and stores biological information only when the pulse wave meets specific adoption conditions, such as stable body motion and valid wave shape, and provides measurement efficiency information to users, distinguishing between successful and failed measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the biological information measurement device is worn on the body for extended periods to continuously measure data, then the measurement duration is improved, but the measurement reliability deteriorates due to body motion changes causing pulse wave deviations
Solution Approach 1:
The device performs preliminary detection of body motion using the motion detection unit before proceeding with pulse wave measurement. By detecting motion in advance and evaluating whether it exceeds thresholds, the system can determine ahead of time whether measurement conditions are suitable, thereby preventing unreliable measurements from being recorded and maintaining reliability over extended wear periods.
Solution Approach 2:
The system implements feedback by continuously monitoring body motion during measurement periods and using this information to adjust measurement operations. The motion detection unit provides real-time feedback about body motion states, which the control unit uses to determine whether to proceed with or abort measurements, ensuring that only reliable measurements are captured even during extended wear.
2Device complexity
If the device treats measurement during body motion as failure to simplify processing, then the device complexity is reduced, but the measurement precision deteriorates by missing potentially correctable data
Solution Approach 1:
Instead of performing full correction processing for all measurements, the device applies partial action by selectively processing only those measurements where body motion detection indicates potential issues. The system performs motion evaluation and correction only when necessary, rather than universally applying complex correction algorithms to every data point, thus balancing processing complexity with measurement precision.
3Quantity of substance
If the device stores only successfully measured data to reduce storage requirements, then the storage volume is reduced, but the information completeness deteriorates by losing measurement context
Solution Approach 1:
The device extracts and stores only the essential motion detection results and measurement success/failure indicators, separating this contextual information from the full measurement data. By storing condensed motion evaluation results rather than complete raw data, the system maintains measurement context information while minimizing additional storage requirements.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A biological information measurement support device, a biological information measurement device, a biological information measurement support method, and a biological information measurement support program, whereby biological information measurement efficiency can be confirmed and efficient measurement of biological information can be supported. A system control unit 11 in the biological information measurement device 1 generates and reports measurement efficiency information indicating measurement efficiency for biological information included in biological information calculation results information, based on biological information calculation results information and pulse wave detection results information from a storage medium 13 storing the biological information calculation results information and the pulse wave detection results information, said biological information calculation results information being information indicating the calculation results for biological information from a biological information calculation unit 11A that calculates biological information based on pulse waves for each pulse detected for a living body, said biological information calculation results information including at least the biological information, and said pulse wave detection results information indicating results from pulse wave detection performed for calculating biological information included in the biological information calculation results information.