| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that an external environment is marked as it is, and once conventional self-propelled equipment travels, the external environment is stained, and the self-propelled equipment is not able to travel in the same external environment again, and it is necessary to collect the mark by man power. SOLUTION: A magnet (mark) 4 showing one spot of traveling set by a magnetic force switching means (mark setting means) 5 is detected by a magnetic force detecting means (mark detecting means) 8, and collected by a magnetic force switching means (mark collecting means) 5 so that it is possible to grasp that a self-propelled equipment returns to a mark setting position, and that it is possible to collect the set mark without using any man power. Thus, it is possible to make the self-propelled equipment travel by setting the mark again without staining the external environment. COPYRIGHT: (C)2005,JPO&NCIPI
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