Method, apparatus and terminal device for communication protocol compatibility

• US 10,574,793 B2
• Filed: 02/08/2018
• Issued: 02/25/2020
• Est. Priority Date: 12/27/2017
• Status: Active Grant

• Current Assignee: UBTECH Robotics Corp.
• Original Assignee: UBTECH Robotics Corp.
• Inventors: Xiong, Youjun, Su, Haiwu, Chen, Lin
• Primary Examiner(s): Song, Rebecca E
• Application Number:
  US15/891,380
• Publication Number:
  US 20190199834A1
• Time in Patent Office: 747 Days
• Field of Search: None
• CPC Class Codes: H04L 69/08 Protocols for interworking; Protocol conversion
• CPC Class Codes: H04L 69/18 Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
• CPC Class Codes: H04L 69/24 Negotiation of communication capabilities

Abstract

The present disclosure provides a method, an apparatus and a terminal device for communication protocol compatibility. The method includes: receiving an external protocol list transmitted by an external device and retrieving a locally stored local protocol list; taking one of a same version information of the external protocol list and the local protocol list as matched version information, if the external protocol list and the local protocol list have the same version information; and taking the local protocol corresponding to the snatched version information as the protocol for communicating with the external device, and transmitting the matched version information to the external device. As a result, when the terminal device and the external device have the same communication protocol, they can perform data exchange using the same communication protocol automatically, which reduces the possibility of the incompatibility in the communication protocol so as to improve the communication success rate.

Claims

1. A computer-implemented method for communication protocol compatibility, comprising executing on a processor steps of:

receiving a handshake instruction transmitted by an external device, wherein the handshake instruction comprises an external protocol list, the external protocol list comprises a correspondence relationship between an external protocol and version information of the external protocol;

retrieving a locally stored local protocol list, wherein the local protocol list comprises a correspondence relationship between a local protocol and version information of the local protocol;

determining whether there is a same version information in the external protocol list and the local protocol list;

taking one of the same version information of the external protocol list and the local protocol list as matched version information, if the external protocol list and the local protocol list have the same version information;

taking the local protocol corresponding to the matched version information as the protocol for communicating with the external device, and transmitting the matched version information to the external device; and

transmitting a service protocol mismatch response to the external device, if there is no the same version information in the external protocol list and the local protocol list, wherein the service protocol mismatch response is used to notify the external device that related service data cannot be received, transmitted or parsed.

2. The method of claim 1, wherein before the step of receiving the handshake instruction transmitted by the external device further comprises:

obtaining version information of the latest protocol;

determining whether an upgrade instruction is received, if the local protocol list does not comprise the version information of the latest protocol; and

downloading the latest protocol and adding the latest protocol into the local protocol list to update the local protocol list, if the upgrade instruction is received.

3. The method of claim 2, wherein the step of determining whether the upgrade instruction is received, if the local protocol list does not comprise the version information of the latest protocol comprises:

determining whether the upgrade instruction is received according to a selection of an user which is to upgrade the local protocol, if the local protocol list does not comprise the version information of the latest protocol; and

determining that the upgrade instruction is received, if the selection of the user which is to upgrade the local protocol is detected;

or,

the step of determining whether the upgrade instruction is received, if the local protocol list does not comprise the version information of the latest protocol comprises;

determining whether the upgrade instruction is received basing on whether a time difference of a current time and a last upgrade time is greater than a preset time threshold;

determining that the upgrade instruction is received, if the time difference between the current time and the last upgrade time is greater than the preset time threshold.

4. The method of claim 1, wherein the step of determining whether there is the same version information in the external protocol list and the local protocol list comprises:

selecting the version information to be searched from the local protocol list in the order from the latest version information to the oldest version information, and determining whether the version information to be searched is in the external protocol list via traversing the external protocol list; and

taking the version information to be searched as the same version information of the external protocol list and the local protocol list, if the version information to be searched is in the external protocol list.

5. The method of claim 1, wherein the step of the taking one of the same version information of the external protocol list and the local protocol list as the matched version information comprises:

taking the latest one of the same version information of the external protocol list and the local protocol list as the matched version information.

6. The method of claim 1, wherein the step of taking the local protocol corresponding to the matched version information as the protocol for communicating with the external device comprises:

determining whether the version information corresponding to the currently loaded protocol is the matched version information;

releasing the currently loaded protocol and loading the local protocol corresponding to the matched version information according to the correspondence relationship between the local protocol and the version information of the local protocol, if the version information of the local protocol corresponding to the currently loaded protocol is not the matched version information; and

continuing to use the currently loaded protocol to communicate with the external device, if the version information corresponding to the currently loaded protocol is the matched version information.

7. The method of claim 1, further comprises:

receiving service data transmitted by the external device;

parsing the service data according to the local protocol corresponding to the matched version information to generate parsed packet data; and

packaging the parsed packet data according to the local protocol corresponding to the matched version information to transmit to the external device.

8. The method of claim 1, wherein the external protocol and the local protocol do not include underlying protocols common to all communication devices.

9. An apparatus for communication protocol compatibility comprising a processor and a memory, wherein the processor is electronically coupled to the memory and an external device, the memory stores instructions that are executable by the processor, and the instructions comprise:

a receiving module configured to receive a handshake instruction transmitted by the external device, wherein the handshake instruction comprises an external protocol list, the external protocol list comprises a correspondence relationship between an external protocol and version information of the external protocol;

a retrieving module configured to retrieve a locally stored local protocol list, wherein the local protocol list comprises a correspondence relationship between a local protocol and version information of the local protocol, and determine whether there is a same version information in the external protocol list and the local protocol list;

a matching module configured to take one of a same version information of the external protocol list and the local protocol list as matched version information, if the external protocol list and the local protocol list have the same version information; and

a setting module configured to take the local protocol corresponding to the matched version information as the protocol for communicating with the external device, and transmitting the matched version information to the external device;

wherein a service protocol mismatch response is transmitted to the external device, if there is no the same version information in the external protocol list and the local protocol list, and wherein the service protocol mismatch response is used to notify the external device that related service data cannot be received, transmitted or parsed.

10. The apparatus of claim 9, wherein the instructions further comprise:

an obtaining module configured to obtain the version information of the latest protocol;

a determining module configured to determine whether an upgrade instruction is received, if the local protocol list does not comprise the version information of the latest protocol; and

an updating module configured to download the latest protocol and adding the latest protocol into the local protocol list to update the local protocol list, if the upgrade instruction is received.

11. The apparatus of claim 9, wherein the retrieving module further configured to:

select the version information to be searched from the local protocol list in the order from the latest version information to the oldest version information, and determine whether the version information to be searched is in the external protocol list via traversing the external protocol list; and

take the version information to be searched as the same version information of the external protocol list and the local protocol list, if the version information to be searched is in the external protocol list.

12. The apparatus of claim 9, wherein the matching module is configured to take the latest one of the same version information of the external protocol list and the local protocol list as the matched version information.

13. The apparatus of claim 9, wherein the setting module is configured to:

determine whether the version information corresponding to the currently loaded protocol is the matched version information;

release the currently loaded protocol and load the local protocol corresponding to the matched version information according to the correspondence relationship between the local protocol and the version information of the local protocol, if the version information of the local protocol corresponding to the currently loaded protocol is not the matched version information; and

continue to use the currently loaded protocol to communicate with the external device, if the version information corresponding to the currently loaded protocol is the matched version information.

14. The apparatus of claim 9, wherein the instructions further comprise:

a service receiving module configured to receive service data transmitted by the external device;

a parsing module configured to parse the service data according to the local protocol corresponding to the matched version information to generate parsed packet data; and

a packaging module configured to package the parsed packet data according to the local protocol corresponding to the matched version information to transmit to the external device.

15. A terminal device for communication protocol compatibility, comprising:

one or more processors;

a memory; and

one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs comprises;

instructions for receiving a handshake instruction transmitted by an external device, wherein the handshake instruction comprises an external protocol list, the external protocol list comprises a correspondence relationship between an external protocol and version information of the external protocol;

instructions for retrieving a locally stored local protocol list, wherein the local protocol list comprising a correspondence relationship between a local protocol and version information of the local protocol;

instructions for determining whether there is a same version information in the external protocol list and the local protocol list;

instructions for taking one of the same version information of the external protocol list and the local protocol list as matched version information, if the external protocol list and the local protocol list have the same version information;

instructions for taking the local protocol corresponding to the matched version information as the protocol for communicating with the external device, and transmitting the matched version information to the external device; and

instructions for transmitting a service protocol mismatch response to the external device, if there is no the same version information in the external protocol list and the local protocol list, wherein the service protocol mismatch response is used to notify the external device that related service data cannot be received, transmitted or parsed.

16. The terminal device of claim 15, wherein the one or more programs further comprises:

instructions for obtaining the version information of the latest protocol;

instructions for determining whether an upgrade instruction is received, if the local protocol list does not comprise the version information of the latest protocol; and

instructions for downloading the latest protocol and adding the latest protocol into the local protocol list to update the local protocol list, if the upgrade instruction is received.

17. The terminal device of claim 15, wherein the one or more programs further comprises:

instructions for selecting the version information to be searched from the local protocol list in the order from the latest version information to the oldest version information, and determining whether the version information to be searched is in the external protocol list via traversing the external protocol list; and

instructions for taking the version information to be searched as the same version information of the external protocol list and the local protocol list, if the version information to be searched is in the external protocol list.

18. The terminal device of claim 15, wherein the instructions for taking one of the same version information of the external protocol list and the local protocol list as the matched version information comprises:

instructions for taking the latest one of the same version information of the external protocol list and the local protocol list as the matched version information.

19. The terminal device of claim 15, wherein the instructions for taking the local protocol corresponding to the matched version information as the protocol for communicating with the external device comprises:

instructions for determining whether the version information corresponding to the currently loaded protocol is the matched version information;

instructions for releasing the currently loaded protocol and loading the local protocol corresponding to the matched version information according to the correspondence relationship between the local protocol and the version information of the local protocol, if the version information of the local protocol corresponding to the currently loaded protocol is not the matched version information; and

instructions for continuing to use the currently loaded protocol to communicate with the external device, if the version information corresponding to the currently loaded protocol is the matched version information.

20. The terminal device of claim 15, wherein the one or more programs further comprises:

instructions for receiving service data transmitted by the external device;

instructions for parsing the service data according to the local protocol corresponding to the matched version information to generate parsed packet data; and

instructions for packaging the parsed packet data according to the local protocol corresponding to the matched version information to transmit to the external device.