Method and system of payment terminal data automatic download

A payment terminal data automatic download method, comprising the following steps:

• S1:
• configuring a mother terminal to be a simulation Near Field Communication, (NFC) tag card mode and electrically connecting it to a conveyor belt control device, and setting a child terminal to be an NFC card reader mode;
• S2:
• attaching identification information to the child terminal;
• when the child terminal is turned on and determines that SN and key information do not exist, it enters a download mode or triggers the download mode by pressing a button, and continues to send a card finding instruction;
• wherein the identification information comprises barcodes or Quick Response, (QR) codes;
• S3:
• the mother terminal controls a conveyor belt to operate through the conveyor belt control device, so that the child terminal on the conveyor belt moves to a position corresponding to a scanning device;
• the scanning device automatically scans the identification information on the child terminal and transmits it to the mother terminal;
• S4:
• the conveyor belt continues to work;
• when the child terminal approaches the mother terminal, the mother terminal responds to the card finding instruction of the child terminal and establishes a communication link, and controls the conveyor belt to stop;
• S5:
• the mother terminal sends data in an NFC Data Exchange Format, (NDEF) format containing Service Number, (SN) and key information to the child terminal;
• S6:
• the child terminal sends a card reading instruction to the mother terminal, and the mother terminal sends data that needs to be sent to the child terminal as response data to the child terminal, after receiving the data, the child terminal parses and processes it;
• the child terminal converts data that needs to be sent to the mother terminal into text that is encapsulated in the NDEF format, and transmits it to the mother terminal through a card writing instruction, after receiving card writing data, the mother terminal parses and processes it, after the child terminal completes a data reception, a NFC function is turned off;
• S7:
• repeating steps S3-S6;
• or complete the step, the mother terminal controls the conveyor belt to stop;
• wherein processing steps of the child terminal comprises:
• S01:
• entering a download mode;
• S02:
• sending the card finding instruction;
• S03:
• receiving a response to the card finding instruction, proceeding to a next step;
• otherwise, returning to step S02;
• S04:
• entering an activation card mode;
• S05:
• receiving activation feedback, proceeding to a next step;
• otherwise, returning to step S02;
• S06:
• entering a card reading mode;
• S07:
• receiving response feedback, proceeding to a next step;
• otherwise, returning to step S02;
• S08:
• performing data processing and issuing read/write card instruction;
• S09:
• receiving response feedback, proceeding to a next step;
• otherwise, returning to step S02;
• S10:
• completing processing, completing the step;
• otherwise, returning to step S06;
• wherein processing steps of the mother terminal comprises:
• S21:
• initialization;
• S22:
• detecting whether there is SN and key information, proceeding to a next step;
• otherwise, repeating step S22;
• S23:
• entering the simulation NFC tag card mode;
• S24:
• receiving the card finding instruction, proceeding to a next step;
• otherwise, repeating step S24;
• S25:
• responding to the card finding instruction and triggering the conveyor belt control device to stop the conveyor belt;
• S26:
• receiving an activation command, proceeding to a next step;
• otherwise, repeating step S26;
• S27:
• receiving response feedback;
• S28:
• receiving the read/write card instruction, proceeding to a next step;
• otherwise, repeating step S28;
• S29:
• performing data processing;
• S30:
• completing processing, triggering the conveyor belt control device, starting the conveyor belt, completing the steps;
• otherwise, returning to step S28.