Smart Razor Sensor Segmentation for Shave Feedback
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Solution Overview
Problem
Existing personal appliances, such as shaving razors, lack comprehensive sensors to provide users with detailed feedback on usage techniques, leading to suboptimal shaving experiences and potential blade attrition.
Innovation Solution
A shaving razor equipped with motion sensors, hair cutting implement displacement sensors, and a communication device, powered by a rechargeable battery, collects and processes data on shaving strokes, pressure, direction, and other parameters to generate user feedback information and recommend improved shaving behaviors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple sensors are added to collect detailed shaving data, then measurement precision and information quality improve, but device complexity increases
Solution Approach 1:
The shaving razor system is segmented into multiple independent sensor modules, each dedicated to measuring specific parameters (motion, force, displacement). This modular segmentation allows each sensor to focus on a single measurement function, improving overall measurement precision while organizing complexity into manageable, replaceable units.
Solution Approach 2:
The collected shaving data serves multiple functions: providing real-time feedback to users, analyzing blade attrition, monitoring usage techniques, and generating maintenance recommendations. This multi-functionality justifies the added sensor complexity by deriving multiple valuable insights from a single integrated data collection system.
2Loss of information
If comprehensive sensors and data processing are implemented, then user feedback quality improves, but energy consumption increases
Solution Approach 1:
The system processes and transmits shaving data periodically rather than continuously, analyzing accumulated sensor data at intervals to generate feedback. This periodic processing reduces continuous energy consumption while still providing comprehensive shaving information, balancing data quality with power efficiency.
Solution Approach 2:
The razor system automatically processes and analyzes its own sensor data using onboard computing resources, generating feedback without requiring constant external processing. This self-service capability reduces the energy burden of data transmission and external processing, allowing the system to maintain high information quality while managing power consumption.
3Productivity
If real-time feedback is provided during shaving, then user experience improvement accelerates, but processing time and computational load increase
Solution Approach 1:
The system pre-processes sensor data during the shaving process itself, continuously analyzing motion and force patterns in real-time to provide immediate feedback. By performing preliminary analysis during shaving rather than after, the system accelerates technique improvement while minimizing additional processing time through efficient real-time computation.
Data Source
AI summary
A method for generating user feedback information from a shave event associated with a user. A shaving razor is provided to user. The shaving razor includes a handle, a hair cutting implement connected to the handle, at least one motion sensor in the handle, a hair cutting implement displacement sensor positioned in the handle, a communication device positioned in the handle and a power source positioned in the handle. The power source powers the at least one motion sensor, the hair cutting implement displacement sensor and the communication device. Shave event data associated with the user during a shave is collected from the at least one motion sensor and the hair cutting implement displacement sensor. The shave event data is processed to generate user feedback information.