Microwave Generation Feedback Control for Aerosol Heating
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing microwave heating systems for aerosol formation face challenges in efficiently absorbing microwave energy due to changing resistance characteristics of aerosol-forming substrates, leading to high power consumption and overheating, as current frequency scanning methods are slow and imprecise.
Innovation Solution
A microwave generation method and device that includes generating an Nth microwave signal, detecting feedback signals, and adjusting control signals to dynamically adjust frequency and power based on real-time absorption efficiency, using a hardware circuit for rapid and precise frequency tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If frequency scanning is performed to find optimal working frequency, then microwave energy absorption efficiency is improved, but computing resources consumption increases and scanning speed decreases
Solution Approach 1:
The patent implements a feedback mechanism where the actual frequency is continuously adjusted based on real-time detection of the aerosol-forming substrate's resistance characteristics. The control module receives feedback signals and dynamically modifies the microwave frequency to maintain optimal absorption conditions, eliminating the need for exhaustive frequency scanning while ensuring continuous optimal performance.
Solution Approach 2:
The system transitions from static frequency selection to dynamic frequency adjustment. The microwave frequency is continuously adapted in real-time according to changing resistance characteristics of the aerosol-forming substrate, allowing the system to maintain optimal absorption efficiency without requiring time-consuming frequency scanning procedures.
2Loss of energy
If frequency scanning is performed to find optimal working frequency, then microwave energy absorption efficiency is improved, but device complexity increases
Solution Approach 1:
The patent employs a feedback control system where a detection module monitors the actual frequency and resistance characteristics, and a control module adjusts the microwave frequency accordingly. This closed-loop system eliminates the need for complex frequency scanning algorithms and extensive computing resources, achieving optimal energy absorption through real-time adaptive adjustment.
Solution Approach 2:
The patent replaces complex computational frequency scanning methods with a hardware-based feedback control system. The detection and control modules directly adjust the microwave frequency through hardware circuits, substituting the need for intensive software-based frequency analysis and computation, thereby reducing device complexity while maintaining optimal performance.
3Loss of energy
If frequency scanning is performed to find optimal working frequency, then microwave energy absorption efficiency is improved, but power consumption increases
Solution Approach 1:
The patent ensures continuous optimal microwave energy absorption by continuously adjusting the frequency to match the changing resistance characteristics of the aerosol-forming substrate. This continuous adaptation prevents energy loss from mismatched frequency conditions, maintaining high absorption efficiency throughout the operation without requiring periodic scanning that would consume additional power.
Solution Approach 2:
The feedback control system continuously monitors and adjusts the microwave frequency based on real-time detection of the substrate's resistance characteristics. This ensures that the system always operates at the optimal frequency for maximum energy absorption, preventing power waste from inefficient energy transfer while eliminating the need for power-intensive frequency scanning.
4Loss of energy
If frequency scanning is performed to find optimal working frequency, then microwave energy absorption efficiency is improved, but scanning precision decreases
Solution Approach 1:
The patent implements a feedback mechanism where the actual frequency is continuously monitored and adjusted based on real-time detection of the aerosol-forming substrate's resistance characteristics. This precise feedback loop enables accurate frequency tuning to match the substrate's changing electrical properties, achieving high scanning precision without requiring exhaustive frequency search methods.
Solution Approach 2:
The system uses dynamic frequency adjustment driven by real-time detection of resistance characteristics changes. The control module continuously adapts the microwave frequency to match the substrate's instantaneous electrical properties, providing precise frequency control that tracks the substrate's changing characteristics with high accuracy throughout the operation.
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
Enables timely and efficient absorption of microwave energy by aerosol-forming substrates, reducing power consumption and preventing overheating through rapid and precise frequency adjustments.
Implementation Method 1
When microwave energy is used for heating aerosol forming substrate to form aerosol
Implementation Method 2
there is an optimal working frequency corresponding to the aerosol-forming substrate, and microwave energy using the optimal working frequency can be maximally absorbed by the aerosol-forming substrate, and in addition the amount of reflected microwave energy is the lowest
Data Source
AI summary
A microwave generation method for an aerosol-generating device includes: generating an Nth microwave signal by a microwave generation module, N being an integer greater than or equal to 1; detecting a feedback signal corresponding to the Nth microwave signal, and generating an adjusting signal according to the feedback signal; and adjusting a control signal according to the adjusting signal by a microwave control module as an adjusted control signal, and sending the adjusted control signal to the microwave generation module.