Method and system for querying in a moving object database

Details Method and system for querying in a moving object database Method and system for querying in a moving object database

2006-03-21

2006-03-21

Nguyen, Tan Q. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Navigation

Employing position determining equipment

C701S201000, C701S205000, C701S210000, C340S988000, C340S995230, C707S793000

Reexamination Certificate

active

07016781

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.

REFERENCES:
patent: 6662105 (2003-12-01), Tada et al.
patent: 6791472 (2004-09-01), Hoffberg

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