Patent ID: 11933614
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G  B | IPC B  G

Claim 0:
1. A positioning method, comprising:
receiving a wireless positioning coordinate of a moving object;
determining a visual sub-map to be matched in a visual map database based on the wireless positioning coordinate; and
obtaining a visual positioning coordinate corresponding to a current image of the moving object captured at time of wireless positioning as a positioning result, based on the determined visual sub-map to be matched;
wherein the positioning method further comprises:
determining a projection point of the wireless positioning coordinate on a preset path as a positioning result, based on a planar environment map of a positioning coverage area;
wherein determining a projection point comprises: determining whether a navigation path has been generated within the planar environment map; if so, projecting the wireless positioning coordinate onto the navigation path, and if not, projecting the wireless positioning coordinate onto an accessible path in the planar environment map;
wherein the positioning method further comprises: when the wireless positioning coordinate is projected onto the navigation path, determining whether the shortest distance of projecting the wireless positioning coordinate onto the navigation path is greater than an absolute value of a system error of the wireless positioning coordinate; if so, projecting the wireless positioning coordinate onto the accessible path, and if not, using a projection point corresponding to the shortest distance as a positioning result.