Sensor-Guided Razor Feedback for Blade Positioning Accuracy
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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 handling and positioning during shaving.
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, allowing for improved technique and extended blade life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If users rely only on feel to determine shave quality, then the device complexity is low, but the shaving precision and blade positioning accuracy deteriorate leading to improper techniques
Solution Approach 1:
The shaving system is divided into modular components: handle, cartridge, and sensor module. The sensor module itself is segmented into multiple sensors (proximity sensor, force sensor, camera) that independently measure different aspects of shaving quality. This segmentation allows each sensor to be optimized for its specific function while keeping the overall system manageable.
Solution Approach 2:
The sensor module serves multiple functions: proximity sensing for blade-to-skin distance, force sensing for pressure measurement, and visual documentation through camera. This multi-functionality consolidates what could be separate devices into one integrated unit, improving measurement precision without proportionally increasing complexity.
2Ease of operation
If real-time sensor feedback is implemented, then shaving technique guidance is improved, but the device complexity and cost increase
Solution Approach 1:
The system continuously monitors shaving parameters through sensors and provides real-time feedback to the user. The proximity sensor detects blade-to-skin distance and provides haptic or visual feedback when optimal positioning is achieved. The force sensor monitors pressure and alerts users when excessive force is applied, enabling proper technique without complex manual intervention.
Solution Approach 2:
The shaving system performs self-monitoring and self-correction guidance. The microcontroller automatically processes sensor data, compares it against optimal parameters, and provides feedback without requiring user interpretation or manual measurement. The system serves itself by autonomously evaluating shaving quality and guiding the user through feedback mechanisms.
3Reliability
If multiple sensors are added to monitor blade positioning, then the reliability of shaving guidance is improved, but the device complexity increases
Solution Approach 1:
Multiple sensing functions (proximity detection, force measurement, visual recording) are merged into a single integrated sensor module that attaches to the razor cartridge. This consolidation provides reliable multi-parameter monitoring while avoiding the complexity of separate distributed sensor systems. The merged module shares power, data, and control resources efficiently.
Solution Approach 2:
The sensor module acts as an intermediary between the blade cartridge and the user's neural processing. Rather than requiring users to directly sense and interpret multiple physical parameters, the sensors convert complex mechanical and optical information into simplified feedback signals (haptic vibrations, visual displays, or audible cues) that are easy to interpret and act upon.
4Manufacturing precision
If proximity sensors are used to detect blade-to-skin distance, then the precision of positioning guidance is improved, but the manufacturing complexity increases
Solution Approach 1:
The proximity sensor and other sensing components are pre-assembled and calibrated as an integrated module before attachment to the razor cartridge. This preliminary integration ensures proper positioning and electrical connections are established during controlled manufacturing conditions, achieving precise blade-to-skin distance measurement while simplifying the overall manufacturing process by reducing on-site assembly complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enhances shaving experience by reducing irritation and extending blade life through precise guidance on shaving techniques, providing real-time data analysis and feedback.
Implementation Method 1
one of the one or more sensors is a proximity sensor
Implementation Method 2
one of the one or more sensors is a camera having an image sensor configured to capture video and/or still images
Data Source
AI summary
An intelligent shaving system is disclosed herein including a system having a handle, at least one blade connected to the handle, a microcontroller attached to the handle, a wireless communication unit configured to send and receive data from microcontroller to an external device, a memory configured to store data applicable to the at least one blade, and one or more sensors configured to send sensory data from the one or more sensors to microcontroller. The one of the one or more sensors is a proximity sensor or a camera having image sensor configured to capture video and/or still images. The shaving system assists in determining blade attrition and provides indicators to assist in shaving techniques. The shaving system further may include at least one blade slightly curved to follow & tangent of the skin. The at least one blade may have a nanolattice structure.