Wireless Kitchen Fire Prevention System Using Electrochemical Carbon Dioxide Gas Sensor for Smart Home

Area of Science:

• Engineering
• Computer Science
• Safety Systems

Background:

• Gas stoves pose a significant fire risk in kitchens.
• Existing fire prevention systems may lack real-time monitoring or efficient power usage.

Purpose of the Study:

• To develop a wireless system for detecting gas stove status and preventing kitchen fires.
• To enhance user safety through timely alerts and extended device battery life.

Main Methods:

• A two-module system: a sensor module with an electrochemical CO2 sensor and an in situ algorithm, and an alarm module.
• Wireless communication using on-off keying (OOK) for low power consumption.
• Integration of a passive infrared (PIR) sensor for a wake-up function to further extend battery life.

Main Results:

• The system accurately detects the gas stove's on state within 40 seconds and off state within 200 seconds.
• The wireless communication and wake-up function contribute to a low-power design.
• The alarm module achieves an extended battery lifetime of approximately two months.

Conclusions:

• The developed wireless kitchen fire prevention system effectively monitors gas stove status.
• The system offers a cost-efficient, low-power solution for enhanced kitchen fire safety.
• The combination of CO2 sensing, OOK, and PIR technology provides a reliable and long-lasting safety alert system.