1 results about "GPS/INS" patented technology

The invention belongs to the technical field of road traffic safety, and discloses an autonomous road traffic system vehicle rollover risk early warning method and system, and the method comprises the steps: collecting the kinetic parameters, road parameters and environmental parameters of an autonomous vehicle; based on GPS / INS positioning data, in combination with a roadside unit collaborative awareness technology, space-time synchronization and dynamic mapping of a vehicle planning track and road environment parameters are carried out, and a space-time coupling sequence used for rollover prediction is constructed; calculating a real-time rollover risk index according to the four-wheel load obtained by the data of the vehicle detector; according to the real-time rollover risk index, taking the kinetic parameters, the road parameters and the environmental parameters of the current vehicle as input, and adopting an extreme random tree algorithm to predict a rollover risk index value in a future preset time; and judging a rollover risk level according to the predicted rollover risk index value, and outputting early warning information for an autonomous road traffic system to perform safety control and path adjustment.