Digital Air Pressure Sensing for False-Trigger-Free Vaporizer Control
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Solution Overview
Problem
Existing electronic vaporizing devices face issues with false triggering due to environmental air pressure changes and misuse, leading to unnecessary power consumption and potential damage, and struggle to accurately detect air pressure differences and adjust vapor or aerosol volume.
Innovation Solution
An electronic vaporizing device equipped with a digital air pressure sensor chip that includes an air pressure sensing unit, processing unit, and switching signal output unit, which sets distinct activation and working thresholds to prevent false triggering and optimize power usage, and a microcontroller that adjusts power output based on air pressure differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the same air pressure difference threshold is used for both power off state and standby state activation, then the device can be easily activated, but false triggering occurs due to environmental air pressure changes or misuse
Solution Approach 1:
The patent applies parameter changes by implementing two distinct air pressure difference thresholds: a first threshold (higher value) for activating from power off state and a second threshold (lower value) for activating from standby state. This differentiation resolves the contradiction by making the activation criteria more stringent when transitioning from complete power off, thereby preventing false triggering while maintaining ease of operation during normal standby-to-active transitions.
2Ease of operation
If the device stays in standby state for extended periods after inhaling, then user convenience is improved, but power consumption increases excessively
Solution Approach 1:
The patent implements periodic action through an automatic sleep mode activation mechanism. After the device enters standby state following inhalation, it automatically transitions to a low-power sleep state after a predetermined time period elapses without further user input. This resolves the contradiction by limiting the duration of the high-power standby state, thereby reducing excessive power consumption while still providing adequate user convenience for normal usage patterns.
3Device complexity
If microphones or analog air pressure sensors are used for detection, then device complexity is reduced, but detection accuracy of air pressure difference is insufficient
Solution Approach 1:
The patent applies mechanics substitution by replacing traditional microphones or analog air pressure sensors with a digital air pressure sensor. This digital sensor provides superior detection accuracy for air pressure differences while maintaining manageable device complexity through integrated digital signal processing capabilities. The digital sensor directly outputs digital signals that can be processed by the microcontroller, eliminating the need for complex analog-to-digital conversion circuits and signal conditioning hardware.
4Speed
If the air pressure sensor continuously detects at original working frequency during sleep state, then detection responsiveness is maintained, but power consumption increases
Solution Approach 1:
The patent implements dynamics by making the detection frequency adaptive based on the operational state of the device. During sleep state, the digital air pressure sensor operates at a reduced detection frequency compared to its full working frequency in active states. This dynamic frequency adjustment resolves the contradiction by lowering power consumption during sleep while maintaining adequate detection responsiveness through periodic monitoring at reduced intervals.
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
The solution effectively prevents false triggering, reduces power consumption, and allows for accurate detection and adjustment of vapor or aerosol volume, enhancing the device's operational efficiency and user control.
Implementation Method 1
The air pressure sensing unit is configured to detect the air pressure difference between the air inlet channel and external environment
Data Source
AI summary
The disclosure provides an electronic vaporizing device with digital air pressure sensor chip and a controlling method thereof. The device comprises a vaporizer part, a power output unit, a microcontroller, and a digital air pressure sensor chip. The digital air pressure sensor chip is disposed in the air inlet channel of the vaporizer part, and comprises an air pressure sensing unit for detecting air pressure difference, an air pressure processing unit, a switching signal output unit, and a digital signal output unit. The switching signal output unit is configured to output a switch signal to activate the microcontroller which is in a sleep state, when the air pressure difference value reaches the set activation threshold. The output switch unit is configured to control the power output unit to provide or not provide output voltage when the air pressure difference value reaches or is lower than the set working threshold.