Early warning method and system for tunnel emergency parking strip

The invention provides an early warning method and system for a tunnel emergency parking strip, and the method comprises the steps: obtaining a plurality of continuous first tunnel frame images, and extracting a concerned image corresponding to the emergency parking strip; obtaining a second tunnel frame image and a third tunnel frame image, and determining whether a to-be-evaluated vehicle exists in the emergency parking strip or not through the second tunnel frame image, the third tunnel frame image and the attention image; if yes, determining the area of the to-be-evaluated vehicle as a first target area, and obtaining a second target area through the third tunnel frame image and the fourth tunnel frame image; judging whether the to-be-evaluated vehicle is static based on the first target area and the second target area; and if the vehicle is static, the vehicle is judged to be a pre-parking vehicle, and a first occupation early warning corresponding to the emergency parking strip is broadcasted. Through a