Smart Shaving Razor Sensor Feedback System
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing personal appliances, such as shaving razors, lack comprehensive sensors to provide users with detailed feedback on their usage techniques, limiting the ability to improve shaving experiences.
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 shave events to generate user feedback information, including stroke count, pressure, and other parameters, and recommends improved shaving behaviors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple sensors are added to collect detailed shave data, then the quality and quantity of user feedback information is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent integrates multiple sensors (motion sensors, displacement sensors, force sensors) into a single multi-functional sensing system that simultaneously captures various shave parameters including stroke count, pressure, speed, and blade attrition metrics. This universal sensor system resolves the contradiction by consolidating multiple measurement functions into one integrated unit, reducing overall system complexity while maintaining comprehensive data collection capabilities.
Solution Approach 2:
The patent employs a nested sensor architecture where displacement sensors and motion sensors are integrated within the handle structure, and force sensors are embedded within the cutting implement assembly. This nesting approach allows multiple sensing functions to be housed within the existing razor structure, minimizing additional complexity while maximizing information gathering capability.
2Measurement precision
If comprehensive sensors are integrated to track shaving parameters, then the measurement precision of usage techniques is improved, but the manufacturing cost increases
Solution Approach 1:
The patent implements self-service functionality where the sensor system automatically calibrates and adjusts measurement parameters based on detected shave patterns. The system performs self-diagnosis and adaptive calibration, eliminating the need for complex manual calibration procedures and reducing manufacturing costs associated with precision adjustment mechanisms. This self-service capability maintains high measurement precision while simplifying the manufacturing process.
Solution Approach 2:
The patent employs parameter changes by using flexible sensor thresholds and measurement ranges that adapt to different shave types and user preferences. The system dynamically adjusts measurement parameters such as force thresholds, stroke speed ranges, and pressure limits based on detected conditions, maintaining high precision across varied shaving scenarios without requiring multiple specialized sensor systems, thereby reducing manufacturing complexity and cost.
3Ease of operation
If real-time feedback is provided during shaving, then the user experience and ability to improve technique is improved, but the energy consumption increases
Solution Approach 1:
The patent implements periodic feedback delivery where the system collects shave data continuously but provides feedback at strategically determined intervals rather than in real-time continuous stream. The feedback is triggered by completed shave sequences, detected blade attrition thresholds, or user-defined intervals, reducing processing and communication energy requirements while maintaining effective technique improvement guidance.
Solution Approach 2:
The patent maintains continuous data collection during shaving to ensure comprehensive measurement coverage, but processes and transmits data in optimized batches. The system continuously monitors shave parameters but performs minimal real-time processing, deferring complex analysis until after the shave event or during low-power intervals, thus maintaining measurement continuity while reducing active energy consumption during the shaving process.
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 associated with the handle, a communication device associated with the handle and a power source associated with 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.