Remote card identification device based on RC531

• Main Authors: RAN XUYANG, ZUO LICHEN, KUK HAN, CHEN MINGXING, GAO BIN, LI GANG
• Format: Patent
• Language: Chinese; English
• Published: 05.09.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; HANDLING RECORD CARRIERS; PHYSICS; PRESENTATION OF DATA; RECOGNITION OF DATA; RECORD CARRIERS

The utility model discloses a remote card identification device based on RC531. The remote card identification device comprises an ARM processor, a safety access module, a photoelectric coupling output module, a modulation-demodulation module, a power amplification module, a low-pass filtering module I, a low-pass filtering module II, a low-noise amplification module and an antenna module, the ARM processor is in communication connection with the security access module and is used for generating a digital signal; the photoelectric coupling output module is connected to the ARM processor; the modulation-demodulation module is in communication connection with the ARM processor and is composed of an MF RC531 chip and a DA/AD conversion circuit. The modulation-demodulation module, the power amplification module, the first low-pass filtering module, the antenna module, the second low-pass filtering module and the low-noise amplification module are connected in sequence, and the low-noise amplification module is fu