Overlapping area overspeed alarming method and system based on vehicle speed limit

The invention discloses an overlapping area overspeed alarming method and system based on vehicle speed limit. The method comprises the steps of (S1) analyzing an area type of a position where a vehicle is located at present in a vehicle operation process, (S2) judging whether the vehicle is in an overlapping area at present according to an analysis result, going to a step (S3) if so, and carrying out overspeed alarm according to an alarm parameter of a current area if not, (S3) determining an alarm parameter of the overlapping area according to an overlapping area alarm rule, and (S4) carrying out overspeed alarm according to the alarm parameter of the overlapping area. The invention provides the overlapping area overspeed alarming method and system based on vehicle speed limit, in the vehicle operation process, the overspeed alarming of a non-overlapping area and area in and out alarming can be realized, the overspeed alarming of the overlapping area and the area in and out alarming can be realized, the pro