Aerosol Article State Detection Using Dual Capacitance Sensors
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Solution Overview
Problem
Existing aerosol generating devices struggle to accurately determine whether an aerosol generating article is reused or over-humidified, which affects user satisfaction and device performance.
Innovation Solution
An aerosol generating device equipped with multiple sensors and a controller that analyzes capacitance variance of different segments of the aerosol generating article to determine its state, including reuse and humidity levels, ensuring optimal smoking satisfaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single sensor is used to detect the state of the aerosol generating article, then the device complexity is reduced, but the measurement precision and reliability of determining both reuse state and humidity state deteriorate
Solution Approach 1:
The detection function is segmented into two separate sensors: a first sensor for detecting reuse state and a second sensor for detecting humidity state. This segmentation allows each sensor to be optimized for its specific detection task, improving overall measurement precision while maintaining reasonable device complexity.
Solution Approach 2:
Both sensors operate within the same detection system and contribute to comprehensive state assessment of the aerosol generating article. The system integrates multiple detection functions (reuse detection and humidity detection) into a unified control framework, achieving multi-functionality without proportionally increasing complexity.
2Device complexity
If capacitance variance measurement is used to detect both reuse and humidity states, then the measurement method is simplified, but the reliability of distinguishing between reused and over-humidified states deteriorates
Solution Approach 1:
The detection system is segmented into two independent measurement channels: one for reuse state detection and another for humidity state detection. This segmentation enables reliable distinction between the two states by analyzing capacitance variance through separate detection paths, each optimized for its specific parameter.
Solution Approach 2:
The system utilizes changes in capacitance parameters under different conditions (reuse vs. over-humidification) to distinguish between states. By monitoring how capacitance variance changes with different article states, the system achieves reliable state identification while maintaining a relatively simple measurement approach.
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
Effectively determines the state of the aerosol generating article, including reuse and humidity, thereby providing enhanced user satisfaction and device performance.
Implementation Method 1
measuring a capacitance variance of the medium segment of the aerosol generating article by a first capacitive sensor, measuring a capacitance variance of the first filter segment by a second capacitive sensor
Data Source
AI summary
An aerosol generating device includes a housing including an inner space, a first sensor disposed adjacent to the inner space, a second sensor disposed adjacent to the inner space at a position different from that of the first sensor, and a controller that is accommodated by the housing and includes at least one processor, in which the controller is configured to determine whether the aerosol generating article is over-humidified based on first information received from the first sensor and determine whether the aerosol generating article is reused based on second information received from the second sensor.