| 摘要 |
PROBLEM TO BE SOLVED: To obtain an accurate current position by correcting errors due to a sensor. SOLUTION: The position sensor includes: a receiving means for outputting to receive sensor information from the outside; a storing means for storing map data giving position information of blocks by dividing an indoor map being a positioning object range into a plurality of the blocks; a current position calculation means for calculating a current position after being moved from another current position before movement of a positioning object based on information output from the receiving means; and a current position correction means for correcting the center of the block in which an area overlapped with a movable range is largest as the current position after movement of the positioning object by storing a previously measured error range of the sensor, referring the map data stored to the storing means, setting a movable range by centering the current position after movement calculated by the current position calculation means based on the error range, and adjoining to the block belonging to the current position before the movement. COPYRIGHT: (C)2009,JPO&INPIT |
