The AT-FS100 reader is based on a one-transceiver and two-receiver reader architecture. During a single tag recognition process, it can obtain detailed and accurate carrier frequency, RSSI, and incident Angle phase information from two antennas. Combined with its built-in powerful AI processing capabilities, it simultaneously realizes batch tag inventory, tag movement direction detection, and tag area positioning functions. In typical access control scenarios, it can simultaneously support the entry and exit inventory and movement direction detection of more than 50 tags.