Projection device and mixed reality space implementing device and nursing robot

摘要

An apparatus and method for implementing a mixed reality space are disclosed. A mixed reality space realization apparatus according to an embodiment of the present invention is a mixed reality space realization apparatus that implements mixed reality in a space including a floor surface and a wall surface, comprising: a base body; A sensing unit installed on the front of the base body to sense a user's behavior; A floor projection unit installed to be elevating on a front surface of the base body and projecting an image on the floor surface; And a wall projection unit installed on an upper surface of the base body and projecting an image onto the wall surface.