Tracking spatial placement of HF RFID tag objects on a surface using multiple reception antennas

A device configured for tracking spatial placement of one or more HF (High frequency) RFID (Radio-frequency identification) tag objects on a surface is disclosed. The device includes an HF RFID reader, a transmission antenna, and a plurality of reception antennas. The transmission antenna effectively transmits power and data over an area that is defined to be a detection surface. Each one of the plurality of reception antennas is able to effectively receive data from a separate portion of the detection surface, while all of the plurality of reception antennas together are able to effectively receive data from substantially all of the detection surface. In one embodiment, the transmission antenna is constantly transmitting power. 本发明公开种被配置成用于在表面上跟踪个或多个HF(高频)RFID(射频识别)标签对象的空间放置的装置。所述装置包括HF RFID读取器、传输天线和多个接收天线。所述传输天线跨越被限定为检测表面的区域有效地传输功率和数据。所述多个接收天线中的每个接收天线能够从所述检测表面的单独部分有效地接收数据，而所有所述多个接收天线起则能够从大体上所有所述检测表面有效地接收数据。在个实施例中，所述传输天线恒定地传输功率。