Map error information obtaining system and map error information obtaining method
US7363151B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2004 |
| Grant date | Apr 22, 2008 |
| Priority date | — |
| Expiry date | Jul 25, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/3837
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides a map error information obtaining system which can promote the collection of the map error information as well as reduce the number of man-hours required for researching the site and verifying whether or not the collected map error information is accurate. The map error information obtaining system herein disclosed comprises a position detecting apparatus including image obtaining means for obtaining image data indicative of an actual condition of and in the vicinity of a current position, and a center apparatus, the position detecting apparatus being operative to transmit map error information including a position of the map information and image data where it is judged that there is a difference, to the center apparatus. The center apparatus is operative to correct the map information after verifying whether or not the difference in the map information is accurate using the image data. Furthermore, the center apparatus is operative to calculate an evaluation point for each of the position detecting apparatuses which have transmitted the map error information so that operators operating the position detecting apparatuses can be rewarded in accordance…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.