DEVICE-PAIRING METHOD AND SYSTEM THEREFOR

1 . A method for a terminal to communicate with a device, comprising:

obtaining a machine-readable code from the device;

determining, based on the code, one or more pairing methods for pairing the terminal with the device; and

performing at least one of the pairing methods.

2 . The method of claim 1 , wherein obtaining the code comprises at least one of:

scanning a graphic code displayed on the device;

receiving an audio signal generated by the device; or

receiving the code through near-field communication (NFC).

3 . The method of claim 2 , wherein the graphic code includes at least one of a bar code, a quick response (QR) code, a three-dimensional code, or an augmented reality code.

4 . The method of claim 1 , wherein determining the pairing methods comprises:

decoding the machine-readable code; and

obtaining a recommendation for one or more of the pairing methods.

5 . The method of claim 1 , wherein determining the pairing methods comprises:

decoding the machine-readable code;

obtaining identification information of the device; and

selecting one or more of the pairing methods based on the identification information.

6 . The method of claim 5 , wherein the identification information includes at least one of a serial number, a machine access control (MAC) address, a model number, or a version number of the device.

7 . The method of claim 5 , wherein selecting one or more of the pairing methods comprises:

querying a database to determine features of the device based on the identification information; and

selecting one or more of the pairing methods based on compatibility with the device features.

8 . The method of claim 5 , wherein selecting one or more of the pairing methods comprises:

transmitting the identification information to a server;

receiving, from the server, identification of one or more of the pairing methods based on compatibility with the device features.

9 . The method of claim 5 , wherein selecting one or more of the pairing methods comprises:

transmitting the identification information to a server;

receiving, from the server, identification of one or more of the pairing methods based on success rates of the pairing methods as applied to the device.

10 . The method of claim 1 , wherein performing at least one of the pairing methods comprises:

presenting one or more of the pairing methods to a user of the terminal;

receiving, from the user, a selection of a first pairing method; and

in response to the user input, performing the first pairing method.

11 . The method of claim 1 , wherein:

the pairing methods include at least a first pairing and a second pairing method; and

performing at least one of the pairing methods comprises:

performing the first pairing method; and

after determining that the first pairing method has failed, performing the second pairing method.

12 . A terminal, comprising:

a memory storing instructions; and

a processor configured to execute the instructions to:

obtain a machine-readable code from the device;

determine, based on the code, one or more pairing methods for pairing the terminal with the device; and

perform at least one of the pairing methods.

13 . The terminal of claim 12 , wherein:

the machine-readable code is a quick-response (QR) code; and

the terminal further comprises a camera configured to scan the QR code.

14 . The terminal of claim 12 , wherein the processor is further configured to execute the instructions to:

decode the code; and

obtain a recommendation of one or more of the pairing methods.

15 . The terminal of claim 12 , wherein the processor is further configured to execute the instructions to:

decode the code;

obtain identification information of the device;

query a database to determine features of the device based on the identification information; and

select one or more of the pairing methods based on compatibility with the device features.

16 . The terminal of claim 12 , wherein the processor is further configured to execute the instructions to:

decode the machine-readable code;

obtain identification information of the device;

transmit the identification information to a server; and

receive, from the server, identification of one or more of the pairing methods based on success rates of the pairing methods as applied to the device.

17 . A non-transitory computer-readable storage medium storing instructions that cause a processor of a terminal to perform a method for communicating with a device, the method comprising:

obtaining machine-readable code from the device;

determining, based on the machine-readable code, one or more pairing methods for pairing the terminal with the device; and

performing at least one of the pairing methods.

18 . A method performed by a server, comprising:

receiving, from a terminal, a request to recommend a pairing method for pairing the terminal with a device, the request comprising identification information of the device;

selecting, based on the identification information, a pairing method that is compatible with the device; and

transmitting the selection, to the terminal, as a recommended pairing method.

19 . The method of claim 18 , wherein selecting a pairing method comprises:

querying a database to determine features of the device based on the identification information; and

selecting a pairing method that is compatible with the features of the device.

20 . The method of claim 18 , wherein:

the server stores success rates of a plurality of pairing methods used on the device; and

selecting the pairing method comprises:

selecting the pairing method based on the success rates.

21 . A method performed by a device carrying a machine-readable code, comprising:

receiving from a terminal a command for pairing with the terminal, the command being based on the code and specifying a pairing method; and

performing pairing steps according to the received method.

22 . A system, comprising:

a device carrying a machine-readable code; and

a terminal, comprising:

a memory storing instructions; and

a processor configured to execute the instructions to:

obtain the code from the device;

determine, based on the code, one or more pairing methods for pairing the terminal with the device; and

perform at least one of the pairing methods.