Data updating device, data updating method, and storage medium storing data updating program
US11585673B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2020 |
| Grant date | Feb 21, 2023 |
| Priority date | — |
| Expiry date | Nov 10, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/3881
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A data updating device sets, with respect to map data in which road links are represented as line segment sequences, a plurality of first straight lines extending in a first direction and a plurality of second straight lines extending in a second direction that intersects with the first direction, to thereby generate mesh map data. Then, the data updating device sets a set L of points or line segments that represent the update location, sets a set V including a plurality of first straight lines, and sets a set H including a plurality of second straight lines. Then, the data updating device sets the state of each mesh based on the set L, the set V, and the set H.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.