Calculation method and device for planned route

Abstract

The invention discloses a calculation method and device for a planned route. When an initial route is planned, first time for reaching each intersection is calculated by adopting the departure as a starting point according to road continuity, whether the first time for reaching each intersection is limited or not is judged, route calculation is performed by combination of the first time for reaching each intersection and limiting information corresponding to each intersection, and an original recommended route is provided; second time for reaching each intersection is calculated according to the current position of a user after advancing; whether the second time for reaching the same intersection is consistent with the limiting information corresponding to the first time is judged, so thatwhether the route is required to be re-planned or not is determined. According to the method, effective planned route calculation is performed by sufficiently utilizing the road restriction information, a more accurate planned route is provided for the user, and behaviors of violation of traffic rules, detouring and the like due to misguidance are effectively avoided.

Description

technical field [0001] The invention relates to a calculation method and device for a planned route. Background technique [0002] In the existing car navigation, the route planning function considers the factors such as road restrictions and traffic lights. The general method is to create a time zone for the user based on the current time at the beginning of the route calculation. When the time regulation is in Within this time zone, the route will avoid this road section, but the time zone obtained from this is general and the accuracy is poor, so it is easy to cause the user to drive to this road section at an unregulated time point, and the route calculation process However, it avoids driving on this section of the road, causing the user to take the wrong driving route or detour; and during the driving process of the self-vehicle, due to many factors that will affect the driving speed, it may also cause the arrival time of the self-vehicle to change, or The previous reg...

AI Technical Summary

Problems solved by technology

[0002] In the existing car navigation, the route planning function considers the factors such as road restrictions and traffic lights. The general method is to create a time zone for the user based on the current time at the beginning of the route calculation. When the time regulation is in Within this time zone, the route will avoid this road section, but the time zone obtained from this is general and the accuracy is poor, so it is easy to cause the user to drive to this road section at an unregulated time point, and the route calculation process However, it avoids driving on this section of the road, causing the user to take the wrong driving route or detour; and during the driving process of the self-vehicle, due to many factors that will affect the driving speed, it may also cause the arrival time of the self-vehicle to change, or The previous regulatory information is invalid, causing the user to take an extra section of the road or a restricted road section; for example, a U-turn is prohibited after 17:00 at a certain intersection. After using the above method to plan the route, the time zone is not after 17:00. Route planning U-turn at this intersection, but due to road conditions, or delays in the middle, when the user drives to this intersection after 17:00, the user follows the original planned route prompts to make a U-turn, thus violating traffic regulations and may be punished accordingly

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