Method for detecting whether a transponder of an RFID system is in a boundary area, RFID system and safety switch

摘要

The present invention relates to a method for detecting whether a transponder of a RFID system comprising a reading device and the transponder is located in a border region (G), wherein a comparison is made with at least one threshold value. According to the invention, a bit error rate (BER) of signals transmitted between the transponder and the reader is determined and the at least one threshold value comprises a predetermined bit error rate for signals transmitted between the transponder and the reader. Furthermore, the invention comprises an RFID system and a safety switch.