The invention provides a
safe driving distraction threshold early warning method based on a multi-
modal interaction behavior, and relates to the field of automobile
safe driving, the method comprises the following steps: S101, obtaining driving behavior data, facial micro
expression data and environment data in real time; s102, identifying
distraction actions of the driving behavior data through a space-time
convolutional neural network model according to the driving behavior data, and calculating a danger coefficient of the current
distraction action; according to the facial micro-
expression data, a current facial emotion is recognized through a micro-expression-semantic
coupling network model, and an emotion coefficient is calculated; identifying current road conditions and weather conditions by adopting an environment sensing model according to the environment data, and calculating an environment coefficient; s103, calculating a distraction value
score according to the danger coefficient, the emotion coefficient and the environment coefficient; step S104, setting a distraction threshold according to the recognized current distraction action, facial emotion and environmental condition; and S105, comparing the current distraction value
score with a distraction threshold value, and if the current distraction value
score is greater than the distraction threshold value, performing early warning.