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Method and device for correcting road acquisition relative offset deviation normal average share

A relative offset and partial normal technology, applied in the field of map measurement and calculation, can solve the problems of inability to guarantee shape points and reduce accuracy

Active Publication Date: 2019-11-15
NAVINFO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method moves a small number of points, but due to the lack of some points, it is only generated by interpolation, which cannot guarantee that the shape points generated by interpolation are the same as the original shape points, and have the actual acquisition curvature slope, which reduces the future The precision of the slope curvature calculations to be made

Method used

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  • Method and device for correcting road acquisition relative offset deviation normal average share
  • Method and device for correcting road acquisition relative offset deviation normal average share
  • Method and device for correcting road acquisition relative offset deviation normal average share

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Embodiment 1

[0104] see figure 2 , this embodiment obtains a group of data from different data collectors, but the lanes in the data collector’s collection specifications are inconsistent with the original data specifications, plus collection errors, when the data is fused with the two, the data deviation has reached more than 10 meters. Among them, the five-pointed star is the deviation point, and the dot is the corrected point. The above data is corrected by using the method of this embodiment, the manual method and deleting some points, and correcting the difference after moving.

[0105]It can be found that the corrected data using the calculation method of this embodiment is completely connected. Through manual screening, no data with unreasonable fusion connection or strange shape was found. After the calculation and verification of curvature slope, the maximum deformation position, curvature change and slope The changes are far lower than the acquisition error, and the time consu...

Embodiment 2

[0108] Using the method of this embodiment, the data obtained by different data collectors are fused and docked, and the results are as follows:

[0109]

[0110]

[0111] It can be seen that, compared with the method of manually moving, since this embodiment can be obtained through continuous calculation, it does not depend on manual work. Therefore, the working time of one man is reduced from a maximum of six days to nine minutes, and the hooking effect is the same as that of a man. Compared with the method of deleting some points and correcting the difference after moving, the working time is reduced by more than 50%, and the mounting effect is greatly improved. The comparison with the coordinate offset points actually collected at the mounting point is the best, and there is no need for a separate curvature and slope adjustment work, the workload for the subsequent curvature and slope adjustment work is reduced by at least 1 man-day.

[0112] The above embodiments h...

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Abstract

The invention discloses a road collection relative offset deviation skewed normal equalization correction method and device. According to the method, first, current positions and target positions needing to be corrected to of a starting point and an ending point of an offset line are acquired; vector offset of the starting point and vector offset of the ending point are calculated according to the current positions and the target positions; the mileage from each offset point n to the starting point and the mileage from each offset point n to the ending point are calculated, and vector offset of each offset point n is subjected to weighted calculation according to the vector offset of the starting point, the vector offset of the ending point and the mileage to the ending point; and target positions of the offset points n after movement are obtained through calculation according to the current positions and the vector offset of the offset points n. Through the method and device, the offset points can be well moved, the practical collection curvature gradient precision of each offset point can be guaranteed, and the workload of offset point movement is greatly lowered.

Description

technical field [0001] The present application relates to the field of map measurement and calculation, in particular, to a method and device for correcting the normal average share of the relative offset deviation of road acquisition. Background technique [0002] With the development of intelligent technology, more and more smart cities, smart transportation, etc. have entered our lives. For example, the Traffic Information Collecting System (Traffic Information Collecting System) uses traffic information collection systems (sensors, cameras, etc.) installed on roads and vehicles to collect traffic flow, driving speed, control information, road conditions, parking lots, weather, etc. The collection, processing and release of dynamic information has become an important part of the intelligent transportation system. Another example is Advanced Driver Assistance Technology (ADAS), which is active safety technology. It is an advanced driver assistance system that assists the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/29
CPCG16Z99/00
Inventor 孔维桢王亚南刘芳芳王萌
Owner NAVINFO