Geographic space management

• US 10,019,446 B2
• Filed: 06/19/2015
• Issued: 07/10/2018
• Est. Priority Date: 06/19/2015
• Status: Active Grant

• Current Assignee: Green Market Square Limited
• Original Assignee: International Business Machines Corporation
• Inventors: Gotoh, Yasuhisa, Miyahira, Tomohiro, Sasaki, Taku, Tanibayashi, Makoto
• Primary Examiner(s): Shaawat, Mussa A
• Assistant Examiner(s): Kim, Kyung J
• Application Number:
  US14/744,056
• Publication Number:
  US 20160371281A1
• Time in Patent Office: 1,117 Days
• Field of Search: None
• CPC Class Codes: G01C 21/005 with correlation of navigation data from several sources, e.g. map or contour matching G01C21/30 takes precedence
• CPC Class Codes: G01C 21/26 specially adapted for navigation in a road network
• CPC Class Codes: G01C 21/34 Route searching; Route guidance
• CPC Class Codes: G01C 21/3407 specially adapted for specific applications
• CPC Class Codes: G01C 21/3881 Tile-based structures
• CPC Class Codes: G06F 16/444 Spatial browsing, e.g. 2D maps, 3D or virtual spaces
• CPC Class Codes: G06F 3/0482 Interaction with lists of selectable items, e.g. menus

Abstract

At least one subsystem among the plurality of subsystems includes a managing section operable to manage individual route information for routes in a management target region of the at least one subsystem among the plurality of regions and adjacent route information for routes positioned in a partial range from a boundary of the management target region among routes in an adjacent region that is adjacent to the management target region, and an identifying section operable to identify the route on which the moving object is positioned based on the observation position, by using the individual route information and the adjacent route information managed by the at least one subsystem. Also provided is a method and computer program product.

Claims

1. A computer system comprising a non-transitory computer readable storage medium having program instructions embodied therewith, the program instructions executable by a computer to cause the computer to perform operations comprising:

managing, via a first subsystem, a first information region and a first management region, wherein the first information region is a first portion of a geographic space including a first route, and the first management region manages a first plurality of mobile objects;

managing, via an adjacent subsystem, an adjacent information region and an adjacent management region, wherein the adjacent information region is a second portion of the geographic space including a second route, wherein a portion of the adjacent information region overlaps the first information region forming a redundant region, wherein the adjacent management region manages a second plurality of mobile objects, and wherein a management boundary is located in the redundant region;

transferring, from the first subsystem to the adjacent subsystem, management of a first mobile object of the first plurality of mobile objects based on the first mobile object crossing the management boundary; and

changing the management boundary based on the load of the first subsystem.

2. The system according to claim 1, wherein the redundant region has a shape and a center of the shape is positioned on one of a vertices of the portion of the geographic space.

3. The system according to claim 1, wherein changing the management boundary based on the load of the first subsystem comprises using a new subsystem to manage the redundant region to decrease information exchanged between the first subsystem and the adjacent subsystem.

4. The system according to claim 1, wherein changing the management boundary based on the load of the first subsystem further comprises transferring control of a mobile object from the first plurality of mobile objects from the first management region to the adjacent management region.

5. The system according to claim 1, wherein changing the management boundary based on the load of the first subsystem further comprises notifying the first plurality of mobile objects in an event of the management boundary changes.

6. The system according to claim 1, wherein the first management region is further divided into predetermined number of blocks.

7. The system according to claim 6, wherein changing the management boundary based on the load of the first subsystem further comprises transferring control of the blocks adjacent to the adjacent management region to the adjacent subsystem.