Oral Care System Position-Resolved Feedback
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Solution Overview
Problem
Existing personal-hygiene systems lack effective integration of position information and treatment parameter data to provide actionable feedback for improving hygiene practices, such as contact pressure during oral care, leading to suboptimal cleaning and potential gum health issues.
Innovation Solution
A personal-hygiene system that includes a position-determining unit for tracking the treatment head's position relative to the user's treatment area, a sensor unit for monitoring treatment parameters like pressure, a processor for generating position-resolved treatment data, and a control unit that triggers actions based on this data to provide feedback and improve hygiene practices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If position information and treatment parameter values are collected and processed to generate position-resolved treatment data, then the quality and effectiveness of hygiene treatment is improved, but the device complexity increases
Solution Approach 1:
The treatment area is divided into multiple position zones, and treatment data is segmented and stored separately for each zone. This allows the system to provide targeted feedback for specific areas (e.g., left vs. right quadrant) without requiring complex global analysis, thereby improving treatment effectiveness while managing system complexity through modular data organization.
Solution Approach 2:
The system implements feedback mechanisms that provide users with real-time and post-treatment information about their brushing behavior, including pressure application and area coverage. This feedback loop enables users to adjust their technique, improving hygiene effectiveness without requiring complex mechanical modifications to the device.
2Ease of operation
If the system provides detailed feedback based on position-resolved treatment data, then user hygiene behavior is improved, but the processing requirements and energy consumption increase
Solution Approach 1:
The system provides differentiated feedback based on local treatment characteristics - different position zones have different feedback requirements and thresholds. For example, the system can apply different pressure guidelines for gum areas versus tooth surfaces, optimizing energy usage by processing only relevant data for each zone rather than uniformly processing all data at high detail levels.
Solution Approach 2:
The system implements partial processing where only certain treatment parameters are fully analyzed for all positions, while other parameters are processed at reduced detail levels. For instance, pressure data may be fully processed for gum-sensitive areas while being coarsely sampled in less critical regions, reducing overall processing energy while maintaining sufficient feedback quality.
Data Source
AI summary
An oral-care system includes an oral-care device having a treatment head, a position-determination unit for determining position information of the treatment head in relation to a user's treatment area at a plurality of time instances during a treatment session, a sensor unit for determining treatment-parameter values of at least one treatment parameter at the plurality of time instances, a processor unit for processing the determined position information and the determined treatment parameter values to generate at least position-resolved treatment data, a memory unit for storing at least the position-resolved treatment data, and a control unit for triggering an action of the personal-hygiene system based at least on a current position information and on the stored position-resolved treatment data.


