A three-dimensional (3D)
radio frequency identification (RFID) tag and an environment condition
recognition system and method using the 3D RFID tag are provided. The tag,
system and method are capable of recognizing the orientation of a mounted object as well as its intrinsic characteristics and position, thus presenting a new paradigm in the field of autonomous object sensing, identification, and recognition technology. The environment condition
recognition system capable of recognizing position and orientation of the object includes a plurality of RF tags each having a self identifier ID, being independently disposed, and having an orientation with respect to a main axial direction, an RFID antenna activating the tags and initiating connection with the RF tags, a reader connected to the antenna and reading information of the RF tags, and an analysis unit connected to the reader and collecting and analyzing the information of the tags. The tags correspond to the position and orientation of the object they are attached to so as to match the respective axial directions in an orthogonal coordinate
system of the object. According to the 3D RFID tag and the environment condition
recognition system and method using the 3D RFID tag, information about an object, a human, or the environment can be more easily obtained, and changes in physical characteristics (e.g., position, orientation) of a targeted object as well as information required for identification can be obtained.