| 摘要 |
The present invention provides an input and output control system (100) of an RFID tag comprising a signal generation unit (110) which outputs a switching signal (Ssw) made of a pulsed power source by generating a first control signal (Sc). The first control signal is connected to a power source (Vc) and selectively controls the switching connection between an RF reader (RF R/D) and each RF antenna (ANT) for an RF signal which is transmitted and received to a wire between the RF reader (RF R/D) and multiple RF antennas (ANT). The input and output control system comprises; a signal filter unit (120) which filters the switching signal (Ssw) outputted by the signal generation unit (110) from the wire and outputs it and filters an RF signal (Srf) in the wire between the RF reader (RF R/D) and the RF antenna (ANT) and inputs and outputs it; a switching control unit (130) which analyzes the switching signal (Ssw) filtered by the signal filter unit (120) and controls individual connection between the RF reader (RF R/D) and the RF antenna (ANT); and a power charging unit (140) which supplies a charging power source by rectification to the switching control unit (130) for the switching signal (Ssw) filtered by the signal filter unit (120). |
