Shaving Appliance Notification Circuit for Stroke Direction Feedback
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Solution Overview
Problem
Existing shaving razors lack the capability to provide comprehensive user feedback and guidance on proper usage techniques, falling short of enhancing the shaving experience.
Innovation Solution
A networked shaving appliance system equipped with motion, orientation, and pressure sensors that generate shave event information, communicating with a computer network to process user data and provide personalized feedback through a graphical user interface, including suggestions based on blade wear, shave stroke direction, and hair growth direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If sensors are added to provide usage information, then user feedback capability is improved, but device complexity increases
Solution Approach 1:
The system segments the feedback provision into two parts: (1) the shaving appliance with sensors that collects data locally, and (2) a remote server that processes the data and generates personalized feedback. This segmentation allows the appliance to remain relatively simple while still providing comprehensive usage information through the distributed system.
Solution Approach 2:
A communication module acts as an intermediary between the shaving appliance and the remote server. The appliance sends raw sensor data through this intermediary, which then processes the information and returns personalized feedback. This intermediary approach allows complex processing to occur remotely while keeping the appliance design manageable.
2Ease of operation
If personalized feedback is provided through network connection, then user experience is improved, but loss of time for data processing occurs
Solution Approach 1:
The system performs preliminary actions by having users complete a one-time usage survey that captures their preferences, skin type, and shaving habits. This pre-collected information is stored and later combined with sensor data to generate personalized feedback more quickly, reducing processing time for subsequent interactions.
Solution Approach 2:
The system implements self-service by allowing users to input their personal preferences and characteristics once, creating a personalized profile that the system then uses automatically. This eliminates the need for repeated data collection and speeds up the feedback generation process while maintaining personalization.
3Measurement precision
If motion and orientation sensors are used to track shave strokes, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The sensor system is designed with multi-functionality, using the same motion and orientation sensors to accomplish multiple tasks: tracking shave stroke direction, measuring applied pressure, detecting blade attrition patterns, and monitoring usage technique. This universal approach provides precise measurement across multiple parameters without proportionally increasing system complexity.
Data Source
Figure 1~1A
Figure 2
Figure 3
AI summary
A shaving appliance includes: a handle and a shaving head connected to the handle; a plurality of sensors provided in the shaving head and/or handle; a sensor circuit connected via a data connection to receive sensor signals from the plurality of sensors and to generate shave stroke direction information from the sensor signals; and a notification circuit determining relative shave stroke direction information for a user from the shave stroke direction information and from hair growth direction information electronically stored with respect to the user.