Methods and devices for barcode based communication and payment implementation
The present application provides a barcode-based communication method, including: rendering first transmission information into a first barcode, and displaying the first barcode for scanning by a peer device; and scanning a second barcode displayed by the peer device, to obtain second transmission information included in the second barcode, where the second transmission information is obtained by the peer device based on a processing result of the first transmission information. According to the technical solutions of the present application, two communication parties can perform bidirectional information transmission by using barcodes, to alleviate information asymmetry caused by unidirectional communication and improve service integrity and security.
1. A computer-implemented method for barcode-based communication, the computer-implemented method comprising:
determining, by one or more processors of a first device, first transmission information to send to a second device, the first transmission information comprising a service request, and a user account information;
generating, by the one or more processors of the first device, a first barcode based on the first transmission information;
displaying, by the first device, the first barcode for scanning by the second device during a predetermined display time;
determining, by the one or more processors of the first device, that the predetermined display time expired;
retrieving, by the first device using a near field communication method, a second barcode generated by the second device, the second barcode comprising second transmission information generated by the second device based on a processing result of the first transmission information, the second transmission information comprising a service result and a display adjustment request specifying a modification of a display parameter of the first device, wherein the display parameter comprises at least one of a screen brightness and a camera status;
retrieving, by the one or more processors of the first device, the second transmission information by processing the second barcode;
adjusting, by the one or more processors of the first device, the display parameter of the first device based on the display adjustment request of the second transmission information; and
in response to adjusting the display parameter, redisplaying, by the first device, the first barcode for scanning by the second device to complete a service without connecting to a remote server.
2. The computer-implemented method of claim 1 , wherein retrieving, by the first device using a near field communication method, a second barcode generated by the second device comprises scanning by the first device using a near field communication method, a second barcode displayed by the second device.
3. The computer-implemented method of claim 1 , wherein the first transmission information comprises device control information and communication control information, the device control information being used to perform at least one of: controlling a working status parameter of the second device, and performing a specific function operation, and wherein the communication control information is used to notify the second device of at least one of a current progress and a subsequent procedure of information exchange.
4. The computer-implemented method of claim 1 , wherein the second transmission information further comprises instructions for at least one of:
changing a working status parameter of a local device based on the display adjustment request in the second transmission information;
performing a specific function operation based on the display adjustment request in the second transmission information;
determining a current progress of information exchange with the second device based on the display adjustment request in the second transmission information; and
performing a subsequent procedure of the information exchange with the second device based on communication control information in the second transmission information.
5. The computer-implemented method of claim 1 , wherein the method further comprises: initiating a prompt signal after communication with the second device ends.
6. The computer-implemented method of claim 5 , wherein the prompt signal comprises at least one of a vibration or a tone, indicating communication with the second device has ended.
7. The computer-implemented method of claim 1 , wherein the second device comprises a payee device and the first device comprises a payer device, and wherein the first barcode is a payment barcode comprising payer account information.
8. A non-transitory, computer-readable medium storing one or more instructions executable by a computer system to perform operations comprising:
determining, by a first device, first transmission information to send to a second device, the first transmission information comprising a service request, and a user account information;
generating, by the first device, a first barcode based on the first transmission information;
displaying, by the first device, the first barcode for scanning by the second device during a predetermined display time;
determining, by the first device, that the predetermined display time expired;
retrieving, by the first device using a near field communication method, a second barcode generated by the second device, the second barcode comprising second transmission information generated by the second device based on a processing result of the first transmission information, the second transmission information comprising a service result and a display adjustment request specifying a modification of a display parameter of the first device, wherein the display parameter comprises at least one of a screen brightness and a camera status;
retrieving, by the first device, the second transmission information by processing the second barcode;
adjusting, by the first device, the display parameter of the first device based on the display adjustment request of the second transmission information; and
in response to adjusting the display parameter, redisplaying, by the first device, the first barcode for scanning by the second device to complete a service without connecting to a remote server.
9. The non-transitory, computer-readable medium of claim 8 , wherein retrieving, by the first device using a near field communication method, a second barcode generated by the second device comprises scanning by the first device using a near field communication method, a second barcode displayed by the second device.
10. The non-transitory, computer-readable medium of claim 8 , wherein the first transmission information comprises device control information and communication control information, the device control information being used to perform at least one of: controlling a working status parameter of the second device, and performing a specific function operation, and wherein the communication control information is used to notify the second device of at least one of a current progress and a subsequent procedure of information exchange.
11. The non-transitory, computer-readable medium of claim 8 , wherein the second transmission information further comprises instructions for at least one of:
changing a working status parameter of a local device based on the display adjustment request in the second transmission information;
performing a specific function operation based on the display adjustment request in the second transmission information;
determining a current progress of information exchange with the second device based on the display adjustment request in the second transmission information; and
performing a subsequent procedure of the information exchange with the second device based on communication control information in the second transmission information.
12. The non-transitory, computer-readable medium of claim 8 , wherein the operations further comprise: initiating a prompt signal after communication with the second device ends.
13. The non-transitory, computer-readable medium of claim 12 , wherein the prompt signal comprises at least one of a vibration or a tone, indicating communication with the second device has ended.
14. The non-transitory, computer-readable medium of claim 8 , wherein the second device comprises a payee device and the first device comprises a payer device, and wherein the first barcode is a payment barcode comprising payer account information.
15. A computer-implemented system, comprising:
one or more computers; and
one or more computer memory devices interoperably coupled with the one or more computers and having tangible, non-transitory, machine-readable media storing one or more instructions that, when executed by the one or more computers, perform one or more operations comprising:
determining, by a first device, first transmission information to send to a second device, the first transmission information comprising a service request, and a user account information;
generating, by the first device, a first barcode based on the first transmission information;
displaying, by the first device, the first barcode for scanning by the second device during a predetermined display time;
determining, by the first device, that the predetermined display time expired;
retrieving, by the first device using a near field communication method, a second barcode generated by the second device, the second barcode comprising second transmission information generated by the second device based on a processing result of the first transmission information, the second transmission information comprising a service result and a display adjustment request specifying a modification of a display parameter of the first device, wherein the display parameter comprises at least one of a screen brightness and a camera status;
retrieving, by the first device, the second transmission information by processing the second barcode;
adjusting, by the first device, the display parameter of the first device based on the display adjustment request of the second transmission information; and
in response to adjusting the display parameter, redisplaying, by the first device, the first barcode for scanning by the second device to complete a service without connecting to a remote server.
16. The computer-implemented system of claim 15 , wherein retrieving, by the first device using a near field communication method, a second barcode generated by the second device comprises scanning by the first device using a near field communication method, a second barcode displayed by the second device.
17. The computer-implemented system of claim 15 , wherein the first transmission information comprises device control information and communication control information, the device control information being used to perform at least one of: controlling a working status parameter of the second device, and performing a specific function operation, and wherein the communication control information is used to notify the second device of at least one of a current progress and a subsequent procedure of information exchange.
18. The computer-implemented system of claim 15 , wherein the second transmission information further comprises instructions for at least one of:
changing a working status parameter of a local device based on the display adjustment request in the second transmission information;
performing a specific function operation based on the display adjustment request in the second transmission information;
determining a current progress of information exchange with the second device based on the display adjustment request in the second transmission information; and
performing a subsequent procedure of the information exchange with the second device based on communication control information in the second transmission information.
19. The computer-implemented system of claim 15 , wherein the operations further comprise: initiating a prompt signal after communication with the second device ends.
20. The computer-implemented system of claim 19 , wherein the prompt signal comprises at least one of a vibration or a tone, indicating communication with the second device has ended.