| 摘要 |
PROBLEM TO BE SOLVED: To measure the spatial coordinates of a target point of a spatial coordinate system having a discretionary point as origin with a simple device configuration and method.SOLUTION: A coordinate measurement device performs: disposing a radio-wave transmission part at a target point; disposing plural reception parts that are positioned at known coordinates and receive the radio wave transmitted from the transmission parts; causing a reception part set consisting of two discretionary reception parts, of the plural reception parts, to receive the radio waves transmitted from the transmission parts; calculating, regarding a reception part set, a propagation path distance-difference that is a difference between a distance from a transmission part to a first reception part and a distance from the transmission part to a second reception part; calculating a propagation path distance-difference for each set of the plural reception part sets; and calculating a coordinate of each of the transmission parts on the basis of the known coordinate of each of the plural reception parts and the respective propagation path distance-difference of each of the plural reception part sets, measuring a coordinate of the target point as a result. |
