2.4 GHz active RFID positioning system with low-frequency triggering function is a low cost meter level indoor positioning system.
The system consists of a low-frequency exciter, 2.4 GHz active RFID reader, and 2.4 GHz active RFID tag with low-frequency excitation.
2.4g active tag is launched actively, and a fixed ID number is sent within a certain interval. The
communication distance with reader can be up to 30-80m