Navigation map updating method and device and automatic driving system

The invention provides a navigation map updating method, a navigation map updating device and an automatic driving system. The method comprises the following steps: firstly, acquiring track point data and road network data of each floating car; then, based on grids and direction angle intervals, cor...

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Bibliographic Details
Main Authors YANG CHUNLI, ZHANG RUNZE, XIA HUALIN
Format Patent
LanguageChinese
English
Published 17.03.2023
Subjects
GYROSCOPIC INSTRUMENTS
MEASURING
MEASURING DISTANCES, LEVELS OR BEARINGS
NAVIGATION
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
SURVEYING
TESTING
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Summary:The invention provides a navigation map updating method, a navigation map updating device and an automatic driving system. The method comprises the following steps: firstly, acquiring track point data and road network data of each floating car; then, based on grids and direction angle intervals, correlation statistics is carried out on the track point data and the road network data to obtain road track popularity; wherein the road trajectory popularity comprises the number of trajectory point data corresponding to the road in different road directions and the traffic ratio of the road in each road direction; and finally, according to the scheme of updating the road direction and the road construction state of the road in the navigation map according to the road track heat, the road attributes including the road direction and the road construction state are judged by using the track point data and the road network data. Therefore, the navigation map is updated by using the obtained road attributes, the timelin
Bibliography:Application Number: CN202111070735