US 12,235,127 B2
Use of geospatial coordinate systems for modifying map and route information
Fharon M. Hicks, Memphis, TN (US); Kosar N. Saeed, Memphis, TN (US); Eric B. Michel, Collierville, TN (US); and Seth Lee Johnson, Memphis, TN (US)
Assigned to United States Postal Service, Washington, DC (US)
Filed by United States Postal Service, Washington, DC (US)
Filed on Nov. 9, 2020, as Appl. No. 17/093,301.
Claims priority of provisional application 62/950,725, filed on Dec. 19, 2019.
Claims priority of provisional application 62/933,724, filed on Nov. 11, 2019.
Prior Publication US 2021/0140791 A1, May 13, 2021
Int. Cl. G01C 21/00 (2006.01)
CPC G01C 21/3819 (2020.08) [G01C 21/3841 (2020.08)] 22 Claims
OG exemplary drawing
 
1. A system for updating map data, the system comprising:
a mobile computing device comprising a location circuit to generate breadcrumb data as the mobile computing device moves along a delivery route; and
a computer system configured to:
receive, from the mobile computing device, the breadcrumb data;
generate breadcrumb lines by converting the breadcrumb data into lines connecting the breadcrumbs within the breadcrumb data;
determine a threshold distance from the generated breadcrumb lines, wherein the threshold distance is a distance within which a threshold number of breadcrumbs of the breadcrumb data are located;
generate buffer lines bounding the generated breadcrumb lines;
draw the buffer lines at the determined threshold distance from the generated breadcrumb lines;
generate buffer centerlines from the generated buffer lines, the buffer centerlines being drawn along a midline between the generated buffer lines;
determine, based on the buffer center lines, the estimated locations of new streets; and
update a map based on the new streets.