POSITION MEASURING DEVICE

摘要

The present invention relates to a position measuring device of a moving apparatus for maintaining wings of an aerogenerator. According to an embodiment of the present invention, it is a position measuring device to measure position of a moving member on a tower installed to be movable in an extending direction of the tower, and a position measuring device comprising an imaged unit fixedly installed on the moving member; an imaging unit having a first imaging module movably installed on one side of the tower and a second imaging module movably installed on the other side of the tower; and a calculation unit calculating the position of the moving member using the angle of the first and the second imaging module and the imaged unit is provided.