Sensor-Guided Shaving Feedback for Force and Blade Positioning
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Solution Overview
Problem
Existing shaving systems lack the ability to provide real-time feedback on proper shaving techniques, leading to issues such as razor burn, irritation, and premature blade dulling due to improper usage.
Innovation Solution
A shaving system equipped with sensors, including a microcontroller, proximity sensors, and a camera, which transmit sensory data to provide real-time feedback on blade positioning and shaving quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional razors without sensors are used, then the device complexity is low, but the user cannot obtain real-time feedback on shaving technique quality
Solution Approach 1:
The patent implements feedback by equipping the razor with sensors (proximity sensors, cameras, force sensors) that detect shaving parameters and provide real-time feedback to the user through a mobile application. This feedback loop enables users to adjust their shaving technique based on objective measurements, directly addressing the information loss problem while accepting increased device complexity as a necessary trade-off.
Solution Approach 2:
The patent introduces a mobile application as an intermediary between the razor's sensor system and the user. The sensors collect data, the mobile application processes and presents this data in an understandable format, and guides user adjustments. This intermediary simplifies the user interface and makes the complex sensor data actionable for improving shaving technique.
2Measurement precision
If users rely on feel to determine shave quality, then the device complexity is low, but the measurement precision of shaving technique is insufficient
Solution Approach 1:
The patent replaces the subjective mechanical sense of touch with objective electronic sensing systems. Proximity sensors, cameras, and force sensors provide quantitative measurements of blade-to-skin distance, shaving direction, and applied force, replacing the imprecise human tactile system with highly accurate electronic measurement devices.
Solution Approach 2:
The system continuously monitors shaving parameters through sensors and provides real-time feedback to users, enabling them to maintain optimal blade positioning and technique. This feedback mechanism transforms subjective feel into objective, measurable, and correctable parameters, significantly improving measurement precision.
3Reliability
If improper shaving techniques are used, then the ease of operation is high, but the reliability of achieving a quality shave deteriorates
Solution Approach 1:
The patent uses feedback to monitor blade-to-skin distance, shaving direction, and applied force in real-time, providing users with guidance to maintain proper technique. This continuous feedback enables users to achieve consistent, high-quality shaves by correcting technique errors as they occur, thereby improving reliability without significantly increasing operational difficulty.
Solution Approach 2:
The system provides preliminary guidance through the mobile application, teaching users proper shaving techniques before they attempt to shave. By establishing correct technique patterns in advance, users can achieve more reliable results with less trial and error, improving consistency while maintaining ease of operation.
4Manufacturing precision
If users cannot see the shaving region clearly, then the device complexity is low, but the manufacturing precision of the shave deteriorates
Solution Approach 1:
The patent introduces a camera system that captures images of the shaving region and transmits them to a mobile application, serving as an visual intermediary for users who cannot directly see their shaving area. This allows users to monitor blade positioning and shaving progress with high precision, overcoming visual limitations without requiring complex optical magnification systems in the razor itself.
Solution Approach 2:
The system transitions the visual information from the three-dimensional shaving region to a two-dimensional image display on a mobile device. This dimensional transformation allows users to view the shaving area from different angles and with enhanced clarity, improving shave precision by enabling better visual assessment of blade positioning and hair removal quality.
Data Source
AI summary
A shaving system including a handle, a cutting member, a sensor, a feedback indicator, and a microcontroller. The sensor is configured to detect a force exerted by the user. The feedback indicator includes an indicator display that is configured to generate a first indication in response to and representative of the force detected by the sensor. The microcontroller is configured to generate a first signal based on the detected force and send the first signal to the feedback indicator such that the feedback indicator generates the first indication during the shaving session to assist the user with shaving. The microcontroller is configured to send a second signal indicative of a change in force to the feedback indicator such that the feedback indicator generates a second indication including illumination in response to and representative of the change in force during the shaving session to assist the user with shaving.