Control method for rapid connection and data transmission between devices

A system for data transmission, to which a control method for performing rapid connection and data transmission between devices is applied, the system comprising at least one master device and a slave device, wherein both the master device and the slave device comprise a wireless short-range communication module;

• the master device comprises a master control unit, a wireless short-range communication module, a wireless local-area or wide-area communication module, a Radio Frequency Identification (RFID) reader and writer module, an antenna, and a bar code reader;
• the power management unit, the wireless short-range communication module, the wireless local-area or wide-area communication module, the bar code reader and the RFID reader and writer module are electrically connected to the master control unit, respectively;
• the antenna is connected to the RFID reader and writer module;
• the wireless short-range communication module is configured to transmit data between the master device and the slave device;
• the RFID reader and writer module is configured to perform data collection of an RFID electronic label;
• and the bar code reader is configured to identify a bar code label;
• wherein when the slave device has a wireless short-range communication function, for performing rapid connection and then rapid data transmission by using a Radio Frequency Identification (RFID) label, the slave device is configured to perform:
• Step 1:
• writing, by a Radio Frequency Identification (RFID) reader and writer module, relevant information about a wireless short-range communication module into an RFID label, writing a serial number and type information of the slave device into the RFID label, the relevant information about the wireless short-range communication module comprising a Media Access Control (MAC) address of a Bluetooth or a WIFI wireless network Service Set Identifier (SSID) and a secret key, and fixing the RFID label onto the slave device;
• the master device is configured to perform:
• Step 2:
• when it is necessary to acquire data information about the slave device, reading information from the RFID label by using an RFID function of a terminal device, to acquire information about the wireless short-range communication module and slave device type information;
• judging a used communication mode from the read information;
• when a Bluetooth function is used, automatically starting, by the terminal device, a Bluetooth module, searching for a Bluetooth module with the corresponding name;
• after the Bluetooth module is found, performing Bluetooth pairing by automatically inputting the read secret key information;
• and after pairing is successful, sending a command to establish a connection;
• and when the read information indicates that the slave device is connected through WIFI, automatically connecting the terminal device to an SSID of the corresponding wireless local area network and inputting the read secret key information;
• and after the connection to the SSID of the wireless local area network is successful, automatically connecting client software on the terminal device to the slave device to acquire data from the slave device;
• and
• Step 3:
• after the connection is established, automatically selecting and entering, by the terminal device, an application interface for the slave device according to the slave device type information acquired from the RFID label;
• when the slave device acquires sensing data, automatically uploading the sensing data to the application interface for the slave device of the terminal device through the wireless short-range communication connection that is already established;
• and if necessary, uploading the sensing data to a remote background server through a wireless local-area or wide-area module of the terminal device.