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1. WO2020139330 - SYSTEMS AND METHODS FOR LOADING AND TRACKING MAPS ON A VEHICLE

Publication Number WO/2020/139330
Publication Date 02.07.2020
International Application No. PCT/US2018/067555
International Filing Date 26.12.2018
IPC
G06F 16/29 2019.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
16Information retrieval; Database structures therefor; File system structures therefor
20of structured data, e.g. relational data
29Geographical information databases
G01C 21/36 2006.01
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
21Navigation; Navigational instruments not provided for in groups G01C1/-G01C19/104
26specially adapted for navigation in a road network
34Route searching; Route guidance
36Input/output arrangements for on-board computers
G06F 16/172 2019.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
16Information retrieval; Database structures therefor; File system structures therefor
10File systems; File servers
17Details of further file system functions
172Caching, prefetching or hoarding of files
G06F 16/44 2019.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
16Information retrieval; Database structures therefor; File system structures therefor
40of multimedia data, e.g. slideshows comprising image and additional audio data
44Browsing; Visualisation therefor
CPC
G01C 21/005
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
21Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
005with correlation of navigation data from several sources, e.g. map or contour matching
G01C 21/3667
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
21Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
26specially adapted for navigation in a road network
34Route searching; Route guidance
36Input/output arrangements for on-board computers
3667Display of a road map
G01C 21/3881
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
21Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
38Electronic maps specially adapted for navigation; Updating thereof
3863Structures of map data
387Organisation of map data, e.g. version management or database structures
3881Tile-based structures
G06F 16/29
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
16Information retrieval; Database structures therefor; File system structures therefor
20of structured data, e.g. relational data
29Geographical information databases
Applicants
  • BEIJING VOYAGER TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • HOU, Tingbo
  • XIANG, Guomin
Agents
  • ALTMAN, Daniel, E.
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEMS AND METHODS FOR LOADING AND TRACKING MAPS ON A VEHICLE
(FR) SYSTÈMES ET PROCÉDÉS DE CHARGEMENT ET DE SUIVI DE CARTES SUR UN VÉHICULE
Abstract
(EN)
A method and systems for loading and tracking maps on a moving vehicle. One method includes obtaining a geographic location of a system on a vehicle, obtaining a boundary corresponding to a contiguous geographical boundary area around the geographic location of the system, loading map data comprising a plurality of map data tiles each including a portion of the geographical boundary area, the plurality of map data tiles including a center tile having a point corresponding to the system location and surrounding map data tiles. The method further includes obtaining an updated system location, and if the updated geographic location is outside of the boundary area, obtaining an updated boundary centered on the updated geographic location and loading map data based on the updated boundary such that the resulting loaded map data includes a center tile and map data tiles surrounding the center tile that intersect the geographical boundary area.
(FR)
L'invention concerne un procédé et des systèmes de chargement et de suivi de cartes sur un véhicule en mouvement. Un procédé consiste à obtenir un emplacement géographique d'un système sur un véhicule, à obtenir une limite correspondant à une zone de limite géographique contiguë autour de l'emplacement géographique du système, à charger des données de carte comprenant une pluralité de pavés de données de carte comprenant chacun une partie de la zone de limite géographique, la pluralité de pavés de données de carte comprenant un pavé central ayant un point correspondant à l'emplacement de système et entourant des pavés de données de carte. Le procédé comprend en outre l'obtention d'un emplacement de système mis à jour, et si l'emplacement géographique mis à jour est à l'extérieur de la zone de limite, l'obtention d'une limite mise à jour centrée sur l'emplacement géographique mis à jour et le chargement de données de carte sur la base de la limite mise à jour de telle sorte que les données de carte chargées résultantes comprennent un pavé central et des pavés de données de carte entourant le pavé central qui croisent la zone de limite géographique.
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