Path navigation method and device based on automatic driving

Abstract

The invention discloses a path navigation method and device based on automatic driving, relates to the technical field of vehicle automatic driving, greatly improves the success rate of an automatic driving navigation function, and improves the user experience of automatic driving navigation. According to the main technical scheme, when an input vehicle starting point and an input destination are received, a navigation planning path is generated according to the starting point and the destination; acquiring road network information corresponding to the navigation planning path from the map data; a preset algorithm is used for processing the navigation planning path and the road network information, a lane-level navigation path is output, the lane-level navigation path is composed of a plurality of branch paths, a path segmentation line between every two adjacent branch paths carries a first driving direction label, each branch path is divided into a plurality of road sections, and the road sections are divided into a plurality of first driving direction labels; a lane included in each road section carries a second driving direction label; and according to the lane-level navigation path, controlling the vehicle to drive to the destination according to the navigation planning path.

Description

technical field [0001] The present invention relates to the technical field of automatic driving of vehicles, and in particular, to a method and device for route navigation based on automatic driving. Background technique [0002] With the rapid development of information and control technology, automatic driving technology is gradually welcomed by car manufacturers and users. It will be a major trend of future car development. The application of automatic driving technology can not only reduce the risk of driving, but also reduce the heavy driving of users. Operational tasks. [0003] At present, in the process of automatic driving of the vehicle, road-level navigation information can be generated according to the starting point and ending point set by the user on the navigation map, which is used to give the navigation planning path of the automatic driving, so that the automatic control of the vehicle can know which intersection should be Change the direction of travel i...

AI Technical Summary

Problems solved by technology

[0004] However, the navigation planning path is only equivalent to telling the vehicle which path to drive from the starting point to the destination. For complex driving conditions, the vehicle will perform routine automatic driving such as changing lanes, overtaking, accelerating, and decelerating according to actual needs. operation, which makes some unpredictable variables still occur even under the premise that the navigation planning path has been formulated

For example, when the current navigation planning route prompts that a freeway off-ramp is about to be required, if the current vehicle is not driving in the rightmost lane (that is, the lane corresponding to the allowed off-ramp), then according to traffic regulations, the vehicle can no longer follow the Once the navigation planning path enters the branch path, it can only re-formulate a new navigation planning path to drive to the destination, which will increase unnecessary driving kilometers, waste driving cost and time cost, and greatly reduce the automatic Driving Navigation User Experience

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