Aerosol Generating Device With Optical Reuse Detection and Heater Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing aerosol generating devices fail to effectively prevent the reuse of cigarettes, leading to reduced smoking satisfaction due to decreased smoking taste and atomization when reused cigarettes are heated, and there is a need for a technology to differentiate between new and used cigarettes.
Innovation Solution
An aerosol generating device equipped with a light source, reuse detection sensor, and controller that determines whether to operate the heater based on the rate of increase or decrease of a sensing value from the reflected light, preventing reuse by limiting heater operation when specific threshold conditions are met.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a reusable cigarette is heated again by using an aerosol generating device, then the device can be used multiple times, but smoking taste and the amount of atomization are reduced and a burnt taste is felt
Solution Approach 1:
The patent applies preliminary action by detecting whether a cigarette has been used before heating it, through light reflection analysis. The system performs detection in advance (before heating) to identify used cigarettes and prevent them from being heated again, thus maintaining smoking quality while enabling device reusability.
2Measurement precision
If a light source and sensor are added to detect cigarette reuse, then reused cigarettes can be identified, but device complexity increases
Solution Approach 1:
The patent applies universality by making the light source serve multiple functions: it acts as both an illumination source for aerosol generation and a detection source for identifying used cigarettes. The sensor similarly serves dual purposes, detecting both light reflection patterns for reuse identification and potentially other parameters. This multi-functionality reduces the need for separate dedicated components.
Solution Approach 2:
The patent uses optical copying principles where the light reflects off the cigarette surface and carries information about its state (new or used). By analyzing this reflected light copy, the system can determine cigarette reuse status without direct physical contact or complex mechanical sensors, simplifying the detection mechanism.
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 distinguishes between new and reused cigarettes by analyzing light reflection patterns, thereby maintaining smoking satisfaction by ensuring only new cigarettes are heated, and preventing the use of reused cigarettes.
Implementation Method 1
a light source that emits light to the cigarette inserted in the cavity; a reuse detection sensor that receives light reflected from the cigarette
Implementation Method 2
a heater that heats the cigarette inserted into the cavity
Data Source
AI summary
An aerosol generating device includes a cavity into which a cigarette is inserted, a light source that emits light to the cigarette inserted in the cavity, a reuse detection sensor that receives light reflected from the cigarette, a heater that heats the cigarette inserted into the cavity, and a controller, and the controller determines whether or not to operate the heater based on a rate of increase or decrease of a sensing value received from the reuse detection sensor.