Infrared vehicle interior environmental monitoring system based on controlled area network (CAN) / local interconnect network (LIN) bus

Abstract

The invention relates to an infrared vehicle interior environmental monitoring system based on a controlled area network (CAN) / local interconnect network (LIN) bus. The infrared vehicle interior environmental monitoring system based on the CAN / LIN bus comprises a senor, a signal processing module, an analog / digital (A / D) conversion circuit, an electronic control unit (ECU) system, a vehicle-mounted computer, a CAN / LIN data bus, an alarming circuit, a liquid crystal display (LCD) module, a wireless communication module and a power source. Signals obtained by the sensor are processed through the signal processing module at first, and then are converted through the A / D conversion circuit to be input to the ECU system to be processed. The ECU system carries out synthetic judgment by combining sensor information and vehicle state information obtained through the CAN / LIN bus from the vehicle-mounted computer. When the ECU system finds that an environment is poor or a person / life is left and vehicle doors are locked inside a vehicle, the ECU system starts the alarming circuit to give an alarm, a message prompt is sent through the wireless communication module and an instruction is sent to the vehicle-mounted computer through the CAN / LIN bus, and the vehicle-mounted computer adjusts vehicle windows or controls starting of an air conditioner and outer circulation of the air conditioner. The power source supplies power for parts. According to the infrared vehicle interior environmental monitoring system based on the CAN / LIN bus, a safety guarantee is provided for the person who does not want to stay in the vehicle, and accidents are avoided.

Description

technical field [0001] The invention relates to a vehicle interior environment monitoring system, in particular to an infrared vehicle interior environment monitoring system based on a CAN / LIN bus, which belongs to the technical field of vehicle intelligent monitoring and life safety guarantee systems. Background technique [0002] In recent years, there have been frequent occurrences of poisoning deaths due to uncontrolled ambient temperature inside the vehicle, spontaneous combustion of the vehicle, or excessive concentrations of gases such as carbon monoxide / carbon dioxide, such as when drivers and occupants are resting or concentrating on an activity in a closed and stationary vehicle , because the concentration of carbon dioxide in the closed environment gradually increases or the toxic gas of carbon monoxide produced by insufficient combustion of the engine enters the car environment and causes poisoning, or because the temperature inside the car is too high or too low ...

AI Technical Summary

Problems solved by technology

[0002] In recent years, there have been frequent occurrences of poisoning deaths due to uncontrolled ambient temperature inside the vehicle, spontaneous combustion of the vehicle, or excessive concentrations of gases such as carbon monoxide / carbon dioxide, such as when drivers and occupants are resting or concentrating on an activity in a closed and stationary vehicle , because the concentration of carbon dioxide in the closed environment gradually increases or the toxic gas of carbon monoxide produced by insufficient combustion of the engine enters the car environment and causes poisoning, or because the temperature inside the car is too high or too low to cause heatstroke or frostbite and freeze to death; It is not uncommon to see accidents caused by infants, sleepers and other people who have no autonomous ability in the closed car after the car. How to prevent the occurrence of such tragedies has not yet had good measures. Continuous monitoring and ensuring the safety of drivers and passengers are particularly important

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