Method and system for querying in a moving object database
US6895329B1 · kind B1 · utility
132Cited by
17References
52Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 29, 2001 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | Oct 4, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99933
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A database receives location information about a moving object. Using the destination of the object and an electronic map, the database finds a projected path for the moving object. From the projected path, the database computes a trajectory. The trajectory may be used to estimate past and future positions of the moving object. The moving object may send location updates to the database when its actual location differs from its anticipated location by more than an uncertainty threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.