Method for judging and alarming people detained in vehicle

The invention relates to the technical field of riding safety, in particular to an in-vehicle staying person judgment and alarm method which comprises the following steps: S1, after a vehicle is started, vehicle starting and stopping information is collected, whether the vehicle is shut down or not is judged, and the step is repeated if the vehicle is not shut down; s2, after the vehicle flames out, the millimeter wave radar module collects information in the vehicle and judges whether people exist in the vehicle or not; and S3, after it is judged that the person exists in the vehicle, the alarm module gives a leaving alarm, meanwhile, the temperature detection module measures the temperature in the vehicle in real time, and if the temperature in the vehicle reaches a high-temperature threshold value, the alarm module gives a danger alarm. According to the method for judging and alarming the staying persons in the vehicle, the millimeter wave radar module is arranged to judge whether the persons in the vehicl