MOBILE MACHINE, POSITION ESTIMATION METHOD, AND POSITION ESTIMATION PROGRAM

摘要

PROBLEM TO BE SOLVED: To estimate positional information of a high accuracy.SOLUTION: A mobile machine estimates the position of each base station device existing at a position communicable with the mobile machine. Regarding each base station device, the mobile machine generates a circle whose center corresponds to the estimated position of the base station device and radius corresponds to the distance between the mobile machine and the base station device estimated using the radio field intensity from the base station device. The mobile machine estimates the position of the mobile machine using an algorithm selected on the basis of the number of generated circles of the base station device and the positional relationship between the circles.SELECTED DRAWING: Figure 3