Traffic section fee payment method, fee system, and payment system

1. A computer-implemented method for traffic section fee payment, comprising:

generating, by a client device, first barcode information comprising first electronic credential information and an inbound timestamp, wherein the first electronic credential information comprises a random code generated by a payment system based on a user identity in the client device, and wherein the inbound timestamp is added to the first barcode information and limits validity of the first barcode information to a predetermined period of time;

scanning, by an inbound charging apparatus, the first barcode information displayed by the client device;

obtaining, by the inbound charging apparatus and from the first barcode information, the first electronic credential information;

sending, by the inbound charging apparatus, inbound information to the payment system, wherein the inbound information comprises inbound station information and the first electronic credential information;

obtaining, by an outbound charging apparatus, second electronic credential information of the client device, wherein the second electronic credential information is different from the first electronic credential information, the second electronic credential information being generated based on the user identity in the client device; and

sending, by the outbound charging apparatus, outbound information to the payment system, wherein the outbound information comprises outbound station information and the second electronic credential information, wherein the outbound information and the inbound information are used by the payment system to determine a payment account that corresponds to the user identity in the client device and pay a traffic fee.

2. The computer-implemented method of claim 1 , further comprising:

before scanning the first barcode information:

requesting, by the client device, the first electronic credential information that corresponds to the user identity from the payment system; and

before obtaining the second electronic credential information:

requesting, by the client device, the second electronic credential information that corresponds to the user identity from the payment system.

3. The computer-implemented method of claim 1 , further comprising:

verifying, by the inbound charging apparatus, validity of the first electronic credential information prior to sending, by the inbound charging apparatus, the inbound information to the payment system.

4. The computer-implemented method of claim 3 , wherein the second electronic credential information further comprises an inbound identifier, wherein the inbound identifier indicates that the client device has registered with the inbound charging apparatus, and wherein the inbound identifier is used to verify validity of the second electronic credential information.

5. The computer-implemented method of claim 4 , further comprising:

obtaining, by the outbound charging apparatus, the second electronic credential information of the client device and the inbound station information recorded by the client device, wherein the inbound identifier is used to indicate that the payment system has received the inbound information that comprises the first electronic credential information.

6. The computer-implemented method of claim 5 , further comprising:

verifying, by the outbound charging apparatus, the validity of the second electronic credential information prior to sending, by the outbound charging apparatus, the outbound information to the payment system, wherein the outbound information comprises the inbound station information.

7. The computer-implemented method of claim 6 , further comprising:

receiving, by the payment system, the outbound information sent by the outbound charging apparatus;

verifying, by the payment system, the validity of the second electronic credential information; and

in response to verification of the second electronic credential information as valid, paying, by the payment system, the traffic fee by using the payment account that corresponds to the user identity based on the inbound station information and the outbound station information.

8. A non-transitory, computer-readable medium storing one or more instructions executable by a computer system to perform operations comprising:

generating, by a client device, first barcode information comprising first electronic credential information and an inbound timestamp, wherein the first electronic credential information comprises a random code generated by a payment system based on a user identity in the client device, and wherein the inbound timestamp is added to the first barcode information and limits validity of the first barcode information to a predetermined period of time;

scanning, by an inbound charging apparatus, the first barcode information displayed by the client device;

obtaining, by the inbound charging apparatus and from the first barcode information, the first electronic credential information;

sending, by the inbound charging apparatus, inbound information to the payment system, wherein the inbound information comprises inbound station information and the first electronic credential information;

obtaining, by an outbound charging apparatus, second electronic credential information of the client device, wherein the second electronic credential information is different from the first electronic credential information, the second electronic credential information being generated based on the user identity in the client device; and

sending, by the outbound charging apparatus, outbound information to the payment system, wherein the outbound information comprises outbound station information and the second electronic credential information, wherein the outbound information and the inbound information are used by the payment system to determine a payment account that corresponds to the user identity in the client device and pay a traffic fee.

9. The non-transitory, computer-readable medium of claim 8 , the operations further comprising:

before scanning the first barcode information:

requesting, by the client device, the first electronic credential information that corresponds to the user identity from the payment system; and

before obtaining the second electronic credential information:

requesting, by the client device, the second electronic credential information that corresponds to the user identity from the payment system.

10. The non-transitory, computer-readable medium of claim 8 , the operations further comprising:

verifying, by the inbound charging apparatus, validity of the first electronic credential information prior to sending, by the inbound charging apparatus, the inbound information to the payment system.

11. The non-transitory, computer-readable medium of claim 10 , wherein the second electronic credential information further comprises an inbound identifier, wherein the inbound identifier indicates that the client device has registered with the inbound charging apparatus, and wherein the inbound identifier is used to verify validity of the second electronic credential information.

12. The non-transitory, computer-readable medium of claim 11 , the operations further comprising:

obtaining, by the outbound charging apparatus, the second electronic credential information of the client device and the inbound station information recorded by the client device, wherein the inbound identifier is used to indicate that the payment system has received the inbound information that comprises the first electronic credential information.

13. The non-transitory, computer-readable medium of claim 12 , the operations further comprising:

verifying, by the outbound charging apparatus, the validity of the second electronic credential information prior to sending, by the outbound charging apparatus, the outbound information to the payment system, wherein the outbound information comprises the inbound station information.

14. The non-transitory, computer-readable medium of claim 13 , the operations further comprising:

receiving, by the payment system, the outbound information sent by the outbound charging apparatus;

verifying, by the payment system, the validity of the second electronic credential information; and

in response to verification of the second electronic credential information as valid, paying, by the payment system, the traffic fee by using the payment account that corresponds to the user identity based on the inbound station information and the outbound station 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:

generating, by a client device, first barcode information comprising first electronic credential information and an inbound timestamp, wherein the first electronic credential information comprises a random code generated by a payment system based on a user identity in the client device, and wherein the inbound timestamp is added to the first barcode information and limits validity of the first barcode information to a predetermined period of time;

scanning, by an inbound charging apparatus, the first barcode information displayed by the client device;

obtaining, by the inbound charging apparatus and from the first barcode information, the first electronic credential information;

sending, by the inbound charging apparatus, inbound information to the payment system, wherein the inbound information comprises inbound station information and the first electronic credential information;

obtaining, by an outbound charging apparatus, second electronic credential information of the client device, wherein the second electronic credential information is different from the first electronic credential information, the second electronic credential information being generated based on the user identity in the client device; and

sending, by the outbound charging apparatus, outbound information to the payment system, wherein the outbound information comprises outbound station information and the second electronic credential information, wherein the outbound information and the inbound information are used by the payment system to determine a payment account that corresponds to the user identity in the client device and pay a traffic fee.

16. The computer-implemented system of claim 15 , the operations further comprising:

before scanning the first barcode information:

requesting, by the client device, the first electronic credential information that corresponds to the user identity from the payment system; and

before obtaining the second electronic credential information:

requesting, by the client device, the second electronic credential information that corresponds to the user identity from the payment system.

17. The computer-implemented system of claim 15 , the operations further comprising:

verifying, by the inbound charging apparatus, validity of the first electronic credential information prior to sending, by the inbound charging apparatus, the inbound information to the payment system.

18. The computer-implemented system of claim 17 , wherein the second electronic credential information further comprises an inbound identifier, wherein the inbound identifier indicates that the client device has registered with the inbound charging apparatus, and wherein the inbound identifier is used to verify validity of the second electronic credential information.

19. The computer-implemented system of claim 18 , the operations further comprising:

obtaining, by the outbound charging apparatus, the second electronic credential information of the client device and the inbound station information recorded by the client device, wherein the inbound identifier is used to indicate that the payment system has received the inbound information that comprises the first electronic credential information.

20. The computer-implemented system of claim 19 , the operations further comprising:

verifying, by the outbound charging apparatus, the validity of the second electronic credential information prior to sending, by the outbound charging apparatus, the outbound information to the payment system, wherein the outbound information comprises the inbound station information.