Method and apparatus for bootstrapping a hydrogen fuel supply protocol

Abstract

To provide a communication method for hydrogen fuel supply that can improve safety, compatibility, efficiency, and reliability. [Solution] The communication method for hydrogen fuel supply according to the present invention includes the steps of: sharing information regarding pairing between a dispenser that supplies hydrogen fuel to a mobility and a mobility, and discovering the dispenser; checking interoperability or compatibility-related information between the dispenser and the mobility based on the pairing information; performing pairing between the dispenser and the mobility based on the pairing information; and performing subsequent processes related to a communication protocol or fuel supply protocol for the process of the dispenser supplying hydrogen fuel to the mobility by sending and receiving at least one message with the dispenser, based on the interoperability or compatibility-related information between the dispenser and the mobility.

Claims

1. A communication method for hydrogen fuel supply (fueling) carried out by hydrogen fuel mobility, A step of sharing pairing information between a dispenser that supplies hydrogen fuel to the mobility and the mobility, and discovering the dispenser that supplies hydrogen fuel to the mobility; A step of checking interoperability or compatibility-related information between the dispenser and the mobility based on the pairing information; A step of performing pairing between the dispenser and the mobility based on the information regarding the pairing; and A communication method for hydrogen fuel supply, characterized by comprising the step of performing a subsequent process related to a communication protocol or fuel supply protocol for the process of the dispenser refueling the mobility with hydrogen, based on interoperability or compatibility-related information between the dispenser and the mobility, by sending and receiving at least one message with the dispenser.

2. At the stage of discovering the dispenser, The messages transmitted and received between the dispenser and the mobility include a VSE (Vendor Specific Element) data field. The communication method for hydrogen fuel supply according to claim 1, wherein the VSE data field includes at least a portion of the information relating to the pairing.

3. The VSE data field is at least part of the information relating to the pairing, Standards supported by the aforementioned dispenser or mobility; Version of the aforementioned standard; A fuel supply protocol supported by the dispenser or the mobility; A communication protocol supported by the dispenser or the mobility; or A communication method for hydrogen fuel supply according to claim 2, comprising identification information for pairing the dispenser or the mobility;

4. The step of discovering the dispenser is, The step in which the mobility device receives a first message from at least one or more wireless communication entities; A step of identifying the dispenser from among the at least one wireless communication entity based on the first message; and A communication method for supplying hydrogen fuel according to claim 1, comprising the step of transmitting an association request message to the identified dispenser;

5. The step of identifying the dispenser from at least one wireless communication entity is: The step of extracting the VSE (Vendor Specific Element) data field from the first message; A step of identifying at least a portion of the information regarding the pairing based on the VSE data field; and A communication method for supplying hydrogen fuel according to claim 4, comprising the step of identifying the dispenser based on at least a portion of the information relating to the pairing.

6. When the first message containing the VSE data field is received from a plurality of dispenser candidates among the at least one wireless communication entity, the step of identifying the dispenser among the at least one wireless communication entity is: A communication method for supplying hydrogen fuel according to claim 5, comprising the step of identifying the dispenser from among a plurality of dispenser candidates based on at least a portion of the information relating to the pairing.

7. The step of discovering the dispenser is, The step of the mobility being at least one wireless communication entity broadcasting a probe request message that includes a VSE (Vendor Specific Element) data field containing at least a portion of the information regarding the pairing; The step in which the mobility receives a probe response message from at least one or more dispenser candidates, which includes a VSE (Vendor Specific Element) data field containing at least a portion of the information regarding the pairing; A step of identifying the dispenser from among the at least one or more dispenser candidates based on at least a portion of the information regarding the pairing in the probe response message; and A communication method for supplying hydrogen fuel according to claim 1, comprising the step of transmitting an association request message to the identified dispenser;

8. The step of the dispenser performing subsequent processes related to a communication protocol or fuel supply protocol for the process of refueling the mobility with hydrogen by sending and receiving at least one message with the dispenser is: The stage of negotiating a communication protocol between the dispenser and the mobility device; The stage of negotiating a fuel supply protocol between the dispenser and the mobility; and A communication method for hydrogen fuel supply according to claim 1, comprising the step of negotiating fuel supply parameters between the dispenser and the mobility;

9. Interoperability or compatibility information between the dispenser and the mobility device is as follows: Whether bidirectional communication between the dispenser and the mobility device is supported; Whether the function of sharing measurement data through bidirectional communication between the dispenser and the mobility device is supported; Whether the measurement data can be used to control or manage the process by which the dispenser refuels the mobility with hydrogen; or A communication method for hydrogen fuel supply according to claim 1, comprising whether, during the process of the dispenser supplying hydrogen to the mobility, a fallback or alternative protocol for the communication protocol or fuel supply protocol can be determined based on a change in the communication environment between the dispenser and the mobility;

10. A communication device for supplying hydrogen fuel to a hydrogen fuel mobility vehicle, Memory for storing at least one instruction; and A processor that executes at least one of the aforementioned instructions; The processor, by at least one instruction, Information regarding pairing is shared between the dispenser that supplies hydrogen fuel to the mobility and the mobility, and the dispenser that supplies hydrogen fuel to the mobility is discovered. Based on the pairing information, check the interoperability or compatibility information between the dispenser and the mobility device. Based on the pairing information, the pairing between the dispenser and the mobility is performed. A communication device characterized in that, based on interoperability or compatibility-related information between the dispenser and the mobility, it performs subsequent processes related to a communication protocol or fuel supply protocol for the process of the dispenser refueling the mobility with hydrogen by sending and receiving at least one message with the dispenser.

11. When the processor discovers the dispenser, The messages transmitted and received between the dispenser and the mobility include a VSE (Vendor Specific Element) data field. The communication device according to claim 10, wherein the VSE data field includes at least a portion of the information relating to the pairing.

12. The VSE data field is at least part of the information relating to the pairing, Standards supported by the aforementioned dispenser or mobility; Version of the aforementioned standard; A fuel supply protocol supported by the dispenser or the mobility; A communication protocol supported by the dispenser or the mobility; or The communication device according to claim 11, comprising identification information for pairing the dispenser or the mobility device.

13. When the processor discovers the dispenser, Having received a first message from at least one wireless communication entity, Based on the first message, identify the dispenser from among the at least one wireless communication entity, A request message is transmitted to the identified dispenser. When the processor identifies the dispenser from among the at least one wireless communication entity based on the first message, The VSE (Vendor Specific Element) data field is extracted from the first message, Based on the VSE data field, at least a portion of the information regarding the pairing is identified. The communication device according to claim 10, which identifies the dispenser based on at least a portion of the information relating to the pairing.

14. When the processor discovers the dispenser, At least one wireless communication entity broadcasts a probe request message that includes a VSE (Vendor Specific Element) data field containing at least a portion of the information regarding the pairing, A probe response message is received from at least one or more dispenser candidates, which includes a VSE (Vendor Specific Element) data field containing at least a portion of the information regarding the pairing. Based on at least a portion of the pairing information in the probe response message, the dispenser is identified from among the at least one or more dispenser candidates. The communication device according to claim 10, wherein the processor transmits an association request message to the identified dispenser.

15. The processor, by at least one instruction, after the pairing between the dispenser and the mobility, Negotiate a communication protocol between the dispenser and the mobility device, Negotiate a fuel supply protocol between the dispenser and the mobility, A communication device according to claim 10, for negotiating fuel supply parameters between the dispenser and the mobility device.

16. A communication method for hydrogen fueling performed by a communication device of a dispenser that supplies hydrogen to hydrogen fuel mobility, A step in which information regarding pairing is shared between the mobility and the dispenser, and the mobility is discovered; A step of checking interoperability or compatibility-related information between the mobility and the dispenser based on the pairing information; A step of performing pairing between the mobility and the dispenser based on the pairing information; and A communication method for hydrogen fuel supply, characterized by comprising the step of performing a subsequent process related to a communication protocol or fuel supply protocol for the process of fueling the mobility with hydrogen, based on interoperability or compatibility-related information between the mobility and the dispenser, by sending and receiving at least one message with the mobility.

17. In the stage of discovering the aforementioned mobility, The messages transmitted and received between the mobility device and the dispenser include a VSE (Vendor Specific Element) data field. The communication method for hydrogen fuel supply according to claim 16, wherein the VSE data field includes at least a portion of the information relating to the pairing.

18. The VSE data field is at least part of the information relating to the pairing, Standards supported by the aforementioned dispenser or mobility; Version of the aforementioned standard; A fuel supply protocol supported by the dispenser or the mobility; A communication protocol supported by the dispenser or the mobility; or A communication method for hydrogen fuel supply according to claim 17, comprising identification information for pairing the dispenser or the mobility;

19. The step in which the dispenser performs subsequent processes related to a communication protocol or fuel supply protocol for the process of refueling the mobility with hydrogen by sending and receiving at least one message with the mobility is: The stage of negotiating a communication protocol between the mobility device and the dispenser; The stage of negotiating a fuel supply protocol between the mobility and the dispenser; and A communication method for hydrogen fuel supply according to claim 16, comprising the step of negotiating fuel supply parameters between the mobility and the dispenser.

20. Interoperability or compatibility information between the aforementioned mobility device and the aforementioned dispenser is, Whether bidirectional communication between the mobility device and the dispenser is supported; Whether the sharing of measurement data via bidirectional communication between the mobility device and the dispenser is supported; Whether the measurement data can be used to control or manage the process by which the dispenser refuels the mobility with hydrogen; or A communication method for hydrogen fuel supply according to claim 16, comprising whether, during the process of the dispenser refueling the mobility with hydrogen, a fallback or alternative protocol for the communication protocol or fuel supply protocol can be determined based on a change in the communication environment between the mobility and the dispenser.

Images