Method and device for processing high-precision roads
A processing method and road technology, which is applied to road network navigators and other directions, can solve the problems of high-precision roads that cannot be smoothly transitioned naturally, poor positions, and do not conform to the actual road direction, and achieve the effect of optimizing the navigation path planning effect
Active Publication Date: 2021-05-25
ALIBABA (CHINA) CO LTD
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[0003] In general, a branch intersection will connect more than three high-precision roads. Since the high-precision road expresses the actual shape of the road more accurately, the endpoints of the high-precision roads (the absolute positioning accuracy is generally at the meter level) connected at the branch intersection There will be a position difference between them, and this will cause the high-precision roads connected by the fork intersection to fail to transition smoothly naturally
E.g, figure 1 The fork shown connects HD road A, HD road C, and HD road B. As shown in the figure, HD road A and HD road C are HD roads in the same direction, and these two HD roads overlap Therefore, when planning the navigation path, a smoothly connected navigation path from high-precision road A to high-precision road C can be planned, and since the endpoint of high-precision road B is b, there is a position between b and a This will cause the planned navigation route from HD road A to HD road B to have a "Z"-shaped route, which obviously does not conform to the actual road direction
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[0027] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.
[0028] An embodiment of the present invention provides a method for processing high-precision roads. The method is applied to optimize the position of the endpoints of the high-precision roads connected to the branch intersection, so that the endpoints of the high-precision roads connected to the branch intersection are no longer Appear figure 1 The "Z" shaped route shown. The specific steps of this method are as follows figure 2 shown, incl...
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The invention discloses a processing method and device for high-precision roads, relates to the technical field of electronic maps, and mainly aims to eliminate "Z"-shaped routes between forks connecting high-precision road endpoints. The main technical solution of the present invention is: to obtain more than three high-precision roads connected to the same bifurcation intersection, the high-precision roads include two types of entering high-precision roads and exiting high-precision roads; selecting one type of high-precision roads Intercept another type of HD road to divide another type of HD road into an intercepted road segment and a reserved road segment, one end of the intercepted road segment is another type of HD road connected to the fork According to the connection relationship between another type of high-precision road and other high-precision roads in the branch intersection, the intercepted road section is fused, so that the intercepted road section is another type of high-precision road connected to the branch. The endpoint of the fork is no longer the endpoint connected to the fork.
Description
technical field [0001] The invention relates to the technical field of electronic maps, in particular to a method and device for processing high-precision roads. Background technique [0002] The fork is one of the components of electronic map data, and it is the basic data supporting navigation path planning and guidance services. [0003] In general, a branch intersection will connect more than three high-precision roads. Since the high-precision road expresses the actual shape of the road more accurately, the end points of the high-precision roads (the absolute positioning accuracy is generally at the meter level) connected at the branch intersection There will be a position difference between them, and this will cause the high-precision roads connected by the bifurcation intersections to fail to transition smoothly naturally. E.g, figure 1 The fork shown connects HD road A, HD road C, and HD road B. As shown in the figure, HD road A and HD road C are HD roads in the sa...
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IPC IPC(8): G01C21/32
CPCG01C21/32
Inventor 贾双成王守荣
Owner ALIBABA (CHINA) CO LTD
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