Progressive map maintenance at a mobile navigation unit
First Claim
Patent Images
1. A system, comprising:
- a hardware-based processing unit; and
a non-transitory computer-readable storage device comprising code that, when executed by the processing unit, causes the processing unit to perform operations comprising;
receiving baseline map data, including a baseline number of prioritized map features for each of a plurality of road segments, from a remote map-data source;
receiving first supplemental map data, wherein the first supplemental map data includes a supplemental number of prioritized map features for at least some of the plurality of road segments, wherein the at least some of the plurality of road segments are selected for receiving the supplemental number of prioritized map features based on a measure of visitation of a mobile navigation unit to the at least some of the plurality of road segments being above a threshold amount of the measure of visitation;
determining whether prioritized map features necessary for a present mobile navigation-unit function along selected ones of the plurality of road segments are found in at least one of the baseline map data and the first supplemental map data, yielding a map-sufficiency determination;
using, if the map-sufficiency determination is affirmative, the baseline map data and the first supplemental map data for the present mobile navigation-unit function along the at least some of the plurality of road segments; and
if the map-sufficiency determination is negative;
determining navigation-unit movement characteristics;
obtaining, based on the navigation-unit movement characteristics, second supplemental map data; and
using at least the second supplemental map data for the present mobile navigation-unit function.
1 Assignment
0 Petitions
Accused Products
Abstract
A system configured to receive baseline map data from a remote map-data source, and determine whether the baseline map data is sufficient for present mobile navigation-unit function, yielding a map-sufficiency determination. If the map-sufficiency determination is affirmative, using the baseline map data for the present mobile navigation-unit function. If the map-sufficiency determination is negative, the system predicts navigation-unit movement, obtains based on the navigation-unit movement predicted, supplemental map data, and uses the baseline map data and the supplemental map data for the present mobile navigation-unit function.
-
Citations
9 Claims
-
1. A system, comprising:
-
a hardware-based processing unit; and a non-transitory computer-readable storage device comprising code that, when executed by the processing unit, causes the processing unit to perform operations comprising; receiving baseline map data, including a baseline number of prioritized map features for each of a plurality of road segments, from a remote map-data source; receiving first supplemental map data, wherein the first supplemental map data includes a supplemental number of prioritized map features for at least some of the plurality of road segments, wherein the at least some of the plurality of road segments are selected for receiving the supplemental number of prioritized map features based on a measure of visitation of a mobile navigation unit to the at least some of the plurality of road segments being above a threshold amount of the measure of visitation; determining whether prioritized map features necessary for a present mobile navigation-unit function along selected ones of the plurality of road segments are found in at least one of the baseline map data and the first supplemental map data, yielding a map-sufficiency determination; using, if the map-sufficiency determination is affirmative, the baseline map data and the first supplemental map data for the present mobile navigation-unit function along the at least some of the plurality of road segments; and if the map-sufficiency determination is negative; determining navigation-unit movement characteristics; obtaining, based on the navigation-unit movement characteristics, second supplemental map data; and using at least the second supplemental map data for the present mobile navigation-unit function. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
Specification