| 摘要 |
PROBLEM TO BE SOLVED: To provide means capable of accurately acquiring the relative attitudes of two mobile bodies.SOLUTION: A first direction sensor 9 is arranged in a first mobile body 3 and a second direction sensor 11 is arranged in a second mobile body 5. The first direction sensor 9 measures a direction &thetas;of the second mobile body 5 with respect to a first reference direction D1 when viewed from the first mobile body 3. The second direction sensor 11 measures a direction &thetas;of the first mobile body 3 with respect to a second reference direction D2 when viewed from the second mobile body 5. Relative relation &thetas;between the first reference direction D1 and the second reference direction D2 is acquired as the relative attitudes of the first and second mobile bodies on the basis of the measured directions &thetas;and &thetas;. |
