Fatigue driving alarm method and device, in-vehicle infotainment system, vehicle and medium

The invention discloses a fatigue driving alarm method and device, a vehicle machine system, a vehicle and a medium, and the method comprises the steps: obtaining the electroencephalogram data of a driver; differential entropy features of the electroencephalogram data are extracted, the differential entropy features and a first preset adjacent matrix are input into a pre-trained fatigue detection model, the current sleep state of the driver is output, the fatigue detection model is obtained through training of a preset public data set, and the current sleep state of the driver is obtained; the first preset adjacency matrix is obtained based on a medical brain functional connection relationship; recognizing the current fatigue state of the driver according to the current sleep state, matching the optimal fatigue alarm level of the vehicle according to the current fatigue state under the condition that the driver is judged to be in fatigue driving based on the current fatigue state, and controlling the vehicle