Piezoelectric Gas Detection Module for Home Air Quality Monitoring
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Solution Overview
Problem
There is a pressing need for real-time air quality monitoring in homes to detect harmful gases and particles, as increasing air pollution poses serious health risks, and existing solutions do not provide immediate and effective detection and warning mechanisms.
Innovation Solution
A home device equipped with a gas detection module that includes a piezoelectric actuator, sensors, and a laser component, which inhales and discharges gas through a flowing channel to detect gas information, allowing for real-time monitoring of air quality by identifying suspended particles and volatile organic compounds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a gas sensor is used to detect air quality in real-time, then the ability to detect harmful gases is improved, but the device complexity increases
Solution Approach 1:
The patent combines the gas detection module (including gas sensor, piezoelectric actuator, and flowing channel) with a home device such as a speaker or display. This integration allows the gas detection function to be embedded within an existing household appliance, achieving real-time gas monitoring without requiring a separate standalone detection device, thus managing device complexity while maintaining detection reliability.
2Measurement precision
If a piezoelectric actuator is used to transport gas to the sensor, then the gas detection accuracy is improved, but the energy consumption increases
Solution Approach 1:
The piezoelectric actuator operates periodically to create pressure differences that transport gas samples to the sensor. By using periodic on-off cycles rather than continuous operation, the system achieves sufficient gas transport for accurate detection while significantly reducing energy consumption compared to continuous operation. The actuator activates only when gas sampling is required.
3Reliability
If real-time gas detection is implemented in homes, then the safety warning capability is improved, but the cost of the device increases
Solution Approach 1:
The patent integrates gas detection functionality into existing home devices like speakers or displays that already have power supplies, housings, and user interfaces. This multi-functional approach allows the same device to serve both its original purpose and gas detection/safety warning functions, avoiding the need to manufacture entirely new specialized devices and thereby reducing overall manufacturing costs while maintaining safety capabilities.
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 immediate detection and warning of hazardous gases and particles, facilitating user safety by providing real-time air quality data, thereby preventing health risks from exposure to harmful environmental gases.
Implementation Method 1
a piezoelectric actuator and at least one sensor. Gas is inhaled into the gas flowing channel through the inlet by the piezoelectric actuator
Implementation Method 2
transported to the at least one sensor to be detected so as to obtain gas information
Data Source
AI summary
The home device capable of gas detection is provided and includes a main body and a gas detection module. The main body has at least one inlet, at least one outlet and a gas flowing channel disposed between the at least one inlet and the at least one outlet. The gas detection module is disposed in the gas flowing channel of the main body and includes a piezoelectric actuator and at least one sensor. Gas is inhaled into the gas flowing channel through the inlet by the piezoelectric actuator, is discharged out through the outlet, and is transported to the at least one sensor to be detected so as to obtain gas information.