Vehicle-mounted monitoring and controlling method and device

The invention discloses a vehicle-mounted monitoring and controlling method and device. The vehicle-mounted monitoring and controlling method comprises the steps that whether vehicle doors are locked is monitored; if the vehicle doors are locked, whether a person is in a vehicle is further monitored; if someone is in the vehicle, whether the temperature in the vehicle exceeds a preset temperature threshold value in the vehicle is further monitored; if the temperature in the vehicle exceeds the temperature threshold value in the vehicle, one or more site photos or a video are/is captured, and an alarm request including the site photos or the video is sent to an associated smartphone APP; a control instruction is received, vehicle window glass automatically drops down according to the control instruction to open vehicle windows, and the condition in the vehicle can be monitored in real time. When the abnormal condition occurs in the vehicle, the an alarm request can be sent to the associated smartphone APP, so that a vehicle owner can remotely control the vehicle windows and regulate the temperature to achieve anti-theft protection on the vehicle and the remote control functions of positioning the position of the vehicle in real time and locking the vehicle to prevent the vehicle from being driven.