Automated Power Window Opening on Carbon Monoxide Detection

This paper presents an embedded system for car cabin safety. A number of sudden deaths happened due to inhaling of carbon monoxide (CO) gas inside car cabin in the past years. The designed embedded system keeps on sensing the accumulated CO gas inside the car cabin. If the value of CO exceeds the predefined threshold value and the motion sensor installed in embedded system detects the presence of any occupant inside the car cabin, a warning text message gets displayed on LCD installed in car cabin and buzzer alarm is generated. The warning text message is sent by GSM kit to occupant cell phone. After receiving response from occupant, DTMF kit generates a preset sequence number and sends a signal to the microcontroller. On receiving this signal, control unit immediately sends signals to power window control circuit of the car to open the power windows to let fresh air come in the car and as the amount of CO reaches below predefined threshold value, power windows of car are rolled up again automatically.