US 12,136,170 B2
Information management device, information management method, and storage medium
Satomi Takagi, Tokyo (JP); and Takashi Ohta, Tokyo (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
Filed on Mar. 24, 2022, as Appl. No. 17/702,826.
Claims priority of application No. 2021-054888 (JP), filed on Mar. 29, 2021.
Prior Publication US 2022/0309750 A1, Sep. 29, 2022
Int. Cl. G06T 17/20 (2006.01); G06T 19/20 (2011.01); H04W 4/02 (2018.01)
CPC G06T 17/205 (2013.01) [G06T 19/20 (2013.01); H04W 4/025 (2013.01); G06T 2219/2004 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An information management device, comprising a storage medium storing a computer-readable instruction and a processor coupled to the storage medium, the processor executing the computer-readable instruction to:
acquire, from a mobile object, uploaded information associated with position information on the mobile object;
generate mesh information based on the uploaded information; and
store the mesh information into a storage in association with a mesh region including the position information on the mobile object among a plurality of mesh regions defined so as to delimit a ground region,
wherein when a first mesh region including the position information corresponding to the uploaded information of a first sampling time and a second mesh region including the position information corresponding to the uploaded information of a second sampling time are different from each other, and the first mesh region and the second mesh region are not adjacent to each other, the processor identifies a third mesh region different from the first mesh region and the second mesh region, which has been passed by the mobile object between the first sampling time and the second sampling time, based on whether or not a line segment connecting the position information corresponding to the first sampling time and the position information corresponding to the second sampling time intersects with each contour line in the first mesh region and whether or not the line segment intersects with a contour line in the second mesh region, and
wherein the processor distributes details of the uploaded information corresponding to the second sampling time into the first mesh region, the second mesh region, and the third mesh region proportionally, and generates the mesh information associated with the first mesh region, the mesh information associated with the second mesh region, and the mesh information associated with the third mesh region.