Heating System User Identification via Inhalation Cooling
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Solution Overview
Problem
Existing aerosol generation systems lack a cost-effective method for user identification, which is essential for preventing unauthorized use and tailoring operations to individual preferences.
Innovation Solution
The system measures changes in properties associated with the heating system due to user inhalation, determining a unique inhalation signature to identify users, eliminating the need for dedicated sensors and allowing for personalized settings and usage logging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a dedicated sensor for user identification is implemented, then user identification accuracy is improved, but system cost increases
Solution Approach 1:
The heating system is designed to serve dual purposes: its primary function of heating the aerosol-forming precursor and a secondary function of enabling user identification through cooling effect measurement during inhalation. By making the heating system multi-functional, the patent eliminates the need for dedicated sensors while maintaining user identification capability, thus resolving the contradiction between measurement precision and device complexity
Solution Approach 2:
The heating system performs self-measurement by detecting temperature changes caused by user inhalation through the flow path. The system uses its own thermal state changes to identify users without requiring external sensing components. This self-service approach reduces system cost while maintaining identification accuracy
2Adaptability or versatility
If existing aerosol generation systems are used, then basic aerosol delivery is achieved, but user identification capability is lacking
Solution Approach 1:
The heating system is designed to serve dual purposes: its primary function of heating the aerosol-forming precursor and a secondary function of enabling user identification through cooling effect measurement during inhalation. By making the heating system multi-functional, the patent eliminates the need for dedicated sensors while maintaining user identification capability, thus resolving the contradiction between measurement precision and device complexity
Solution Approach 2:
The heating system performs self-measurement by detecting temperature changes caused by user inhalation through the flow path. The system uses its own thermal state changes to identify users without requiring external sensing components. This self-service approach reduces system cost while maintaining identification accuracy
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
This approach enables accurate user identification, allowing the system to operate in preferred modes, prevent underage access, and log usage data effectively, while reducing costs by eliminating the need for expensive sensors.
Implementation Method 1
A heating system may be formed of one or more electrically activated resistive heating elements, which are arranged to heat said precursor to generate the aerosol
Implementation Method 2
A change in the property due to a cooling effect on the heating system from a user inhalation through the flow path
Data Source
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AI summary
An aerosol generation system (36) for generation of an aerosol from an aerosol-forming precursor, the system comprising: an electrically operated heating system (30) to heat said precursor to generate the aerosol; a flow path (18} for transmission of flow, including the aerosol, to a user; the heating system (30) arranged in fluid communication with the flow path (18); electrical circuitry (8) to measure a change in a property associated with the heating system (30) due to a cooling effect on the heating system (30) from a user inhalation through the flow path (18), and to determine a characteristic of the inhalation based on the measured property associated with the heating system (30), and to identify the user based on the determined characteristic.