Abstract
With the rapid development of economy, cars enter families on a large scale. While
enjoying the convenience brought by cars, it is easy to ignore the safety problems of children in
cars. According to KidsAndCars, asphyxiation is far higher than any other type of injury in a
child's car. Due to the small body of children and weak safety awareness, once they stay in the
car for a long time, they have little ability to rescue themselves, which can easily lead to death
and other emergencies.
In order to solve the problem of children staying in the vehicle after parking, reduce the risk
of staying in the vehicle and ensure the safety of the vehicle, a stM32-controlled vehicle child
staying detection system was designed. When the vehicle stops and flameout, the system
determines whether the number of people out of the vehicle is correct through the thermal
infrared sensor, and further determines whether the vehicle is stranded through the pressure
sensor, and automatically starts the CO2 gas detection module and temperature detection module
to monitor the vehicle environment data. When detecting that the environmental data in the
vehicle reaches the set critical threshold, alarms will be raised by lowering part of the Windows
to attract the attention of pedestrians, and the GSM module will send the distress message to the
contact person bound to the vehicle according to the degree of crisis.
Establish a variety of determination mechanisms, combining infrared, pressure and CO2
detection, using GSM short message to send alerts to mobile phones. By setting the priority
trigger of each sensor, the multi-angle logical and rigorous vehicle child detention detection
system is realized. Better guarantee children ride safety.
Key words: stranded children in the car; STM32; The sensor;
