| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a technology of detecting abnormality of a measured value of a rotary scanning type optical range sensor. <P>SOLUTION: A traveling body includes: an outer part 3 of the traveling body having a recess part 2 in the front face; an optical rotary scanning range sensor 4 disposed in the recess part 2, and measuring the distance from the recess part 2 to an object present in an area facing the front of the traveling body by performing rotary scanning; a pathway forming part 5 disposed in the rear of the rotary scanning range sensor 4 in the recess part 2, and forming pathways L1, L2 of at least two different known distances measured by the rotary scanning range sensor 4; and an abnormality detection part 6 detecting the abnormality of the rotary scanning range sensor 4 based on the values l1, l2 of at least two different known distances formed by the pathway forming part 5 and measured by the rotary scanning range sensor 4. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
