BRIDGE INSPECTION SYSTEM AND BRIDGE INSPECTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a bridge inspection system and a bridge inspection method capable of realizing a high-precision bridge inspection in a manner that simultaneously obtains a relation between damage on an upper face of a bridge and other damage on a lower face thereof by using an accurate position of the damage.SOLUTION: A bridge inspection system comprises: a first measuring device installed above an upper face of a bridge; a second measuring device installed below a lower face thereof; a flight vehicle which is mounted on an imaging device and moves along the lower face of the bridge; a power source device which is connected to the flight vehicle through a cable and supplies the same with electric power; a control device of the flight vehicle; and an operation processing device which carries out a calculation of coordinates of an inspection object section on the upper face of the bridge and the flight vehicle. The operation processing device calculates: the coordinates of the inspection object section on the basis of a measurement value of the first measuring device with a position where the first measuring device is installed as a coordinate reference; and the coordinates of the flight vehicle on the basis of the measurement value of the second measuring device. The control device outputs a movement instruction signal on the basis of a difference between a coordinate value of the flight vehicle and the same of the inspection object section. The flight vehicle moves in accordance with the movement instruction signal and takes an image of the lower face of the bridge immediately below the inspection object section.SELECTED DRAWING: Figure 1