Communication system based on smart machine audio interface transmission RFID data

The utility model provides a communication system based on smart machine audio interface transmission RFID data, including smart machine and RFID data transmission device, the smart machine is equipped with audio interface and voice modulation module, and RFID data transmission device includes audio coding decoder, MCU, RFID module, power management module and lithium cell, the smart machine sends digital controlled signal and conveys the voice modulation module and convert audio frequency analog signal to, conveys the audio coding decoder through audio interface and decodes and obtain the digital command and erupt simultaneously and send MCU to, and the data transmission that MCU read the RFID module RFID tag converts the audio data stream to the audio coding decoder to send smart machine decode through audio interface. Implement the utility model discloses a communication system in smart machine audio interface transmission RFID data has following beneficial effect: the connection is convenient, the cost is