Patent ID: 8825257
Filing Date: 2014-09-02
Classification: G05D

Abstract:
1. A method of causing a mobile body to autonomously navigate while comparing environmental magnetism data obtained in advance by measuring magnetism generated along a navigation path on which the mobile body navigates and measured magnetism detected by actually measuring the magnetism generated along the navigation path when the mobile body navigates along the navigation path, the method comprising: a step (a) of detecting both a first measured magnetism and a second measured magnetism at predetermined intervals during navigation of the mobile body, the detection of the first measured magnetism and second measured magnetism being performed in different positions on the mobile body; and a step (b) of causing the mobile body to autonomously navigate on the basis of a selected one of the first measured magnetism and the second measured magnetism, the selected one being specified by a matching property with the environmental magnetism data, and the environmental magnetism data, wherein when the selected one of the first measured magnetism and the second measured magnetism no longer has matching properties with the environmental magnetism data the other of said first measured magnetism and second measured magnetism is utilized for navigation.