Hang Peng
ABSTRACT
Due to the limitation of single function and no Internet of things communication in the vehicle safety alarm system on the market at present, the automobile suffocation accidents occur frequently. In view of this situation, this paper studies a design method of a vehicle security early warning terminal based on Internet of things. This method uses carbon monoxide detection module, oxygen detection module, temperature detection module, pyrogenic infrared detection module, and other modules to detect whether the vehicle environment is abnormal, if the anomaly is detected, an early warning is activated and emergency measures are taken automatically. At the same time, the wireless communication module is used to send the vehicle location information to the designated user's mobile phone and cloud. The system improves the safety of the automobile and greatly reduces the possibility of asphyxiation in the automobile. The experimental results verify the effectiveness of the design. The error of the display value of CO content, oxygen concentration and temperature of the prototype is less than + 2 ppm, ± 0.1% and ± 0.1 ℃ respectively. If the carbon monoxide content, oxygen content and temperature deviate from the safe range, the buzzer will sound the alarm, upload the abnormal information in the car and the location of the vehicle to the cloud, and send a distress message to the designated user's mobile phone.
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