Distributed Temperature Monitoring System for Auto Spontaneous Combustion Based on Multiple Sensor Signals

Because the pressure and the temperature exceed the safety standard scope, causes the automobile performance to reduce greatly, finally causes the automobile self-ignition accident. In order to prevent and reduce the probability of this kind of accident, a temperature monitoring system is designed by using multiplex sensor signal and STM32 controller to monitor the temperature in real time. The SP37 sensor integrates pressure sensor and temperature sensor, and its internal controller is compatible with 8051 instruction. It also has the function of RF transmission. The system displays the temperature data in real time. When the data exceed the safety threshold, the system sends out warning sound to warn the driver to prevent the danger of spontaneous combustion. Experimental results show that the design has the advantages of good stability, high measurement accuracy and low power consumption.