Atomizer Heating Control Using PWM and Real-Time Temperature Feedback
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Solution Overview
Problem
The existing heating control methods for atomization devices suffer from low accuracy in temperature control, leading to suboptimal user experience due to inefficient energy transfer and the need for high-precision temperature sensors and calibration, which increases costs and complexity.
Innovation Solution
A heating control method that dynamically adjusts the heating duration based on real-time temperature measurements and specific heat capacity, using pulse width modulation (PWM) to optimize energy transfer and prevent overheating, while reducing the reliance on high-precision temperature sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If rapid heating is performed during a first period and temperature maintenance during a next period, then the atomization can meet user taste demand, but the heating control accuracy becomes low and user tasting experience is impaired
Solution Approach 1:
The heating process is divided into multiple heating periods with different heating durations. The detection period is segmented to be shorter than the heating period, allowing multiple temperature measurements within a single heating cycle. This segmentation enables the system to capture temperature changes at different stages of heating, improving control accuracy without sacrificing heating speed.
Solution Approach 2:
The heating duration of different heating periods is made dynamic (same or different) based on real-time temperature feedback. The control method dynamically adjusts heating parameters by comparing real-time detected temperature with target temperature, and modifying subsequent heating durations accordingly. This dynamic adjustment resolves the contradiction by adapting the heating process to actual temperature conditions.
2Measurement precision
If high-precision temperature sensors and calibration are used to improve heating control accuracy, then temperature control precision is improved, but device complexity and costs increase
Solution Approach 1:
The system implements a feedback mechanism where real-time detected temperature is continuously compared with target temperature. Based on this feedback, the heating duration of subsequent heating periods is dynamically adjusted. This feedback loop enables accurate temperature control using standard sensors, eliminating the need for high-precision sensors and complex calibration processes.
Solution Approach 2:
The heating control system performs self-adjustment by automatically modifying heating durations based on real-time temperature measurements. The system serves itself by using the temperature feedback to determine optimal heating parameters without requiring external calibration or high-precision sensing equipment, thereby reducing device complexity.
3Measurement precision
If detection periods are made shorter than heating periods, then real-time temperature monitoring accuracy is improved, but control system complexity increases
Solution Approach 1:
The detection period is segmented to be shorter than the heating period, creating multiple measurement opportunities within each heating cycle. This temporal segmentation allows the system to capture temperature dynamics at different phases of heating (rapid heating phase, stabilization phase) without requiring complex control logic, as each detection period independently contributes to the overall temperature profile.
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 method enhances the accuracy of heating control, improves user experience by maintaining precise temperature control, and reduces costs by simplifying sensor requirements and calibration processes.
Implementation Method 1
the atomization of the atomization device can be performed by means of rapid heating
Implementation Method 2
obtaining a real-time detected temperature of a heating element of the atomization device
Data Source
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AI summary
The present disclosure relates to a heating control method, device, circuit for an atomization device, an atomization device, a computer readable storage medium and a computer program product. The method includes obtaining a real-time detected temperature of a heating element of the atomization device in each detection period of a heating control process, and determining a heating state of the heating element based on a heating duration of a current heating period and the real-time detected temperature. The detection periods are shorter than the current heating period, and the heating durations of different heating periods are the same or different.