According to one embodiment of the present invention, plant facility management is possible to more safely and exactly obtain position data and image data with respect to a facility in a plant, which is difficult for being obtained by people, by using an unmanned aerial vehicle and is possible to more easily identify a state of the facility in the plant by an operator by integrating a target facility image and an augmented reality image displaying operational state information in the target facility to display the same, thereby being possible to improve stability and efficiency of operation and maintenance of the plant.
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