Method and device for detecting living body in vehicle, computer device and storage medium

The invention relates to a method and device for detecting a living body in a vehicle, a computer device and a storage medium. According to the method, a signal that is reflected after a millimeter wave radar signal emitted by a millimeter wave radar device installed above a seat in a vehicle meets a to-be-detected object is obtained; mixing processing is carried out on the obtained signal and theemitted millimeter wave radar signal to obtain an intermediate frequency signal; relevant information of a to-be-detected object is obtained based on the intermediate frequency signal; tracking and interference elimination processing are carried out on the to-be-detected object based on the relevant information of the to-be-detected object to obtain a processing result; whether a living body exists in the vehicle is determined based on the processing result; and if so, an alarm signal is sent out. Detection of existence of a living body is realized; occurrence of phenomena that any one is locked in the vehicle due to