Search

CN-122029374-A - Method and apparatus for adapting internet protocol in low speed wireless network for hydrogen fueling communication

CN122029374ACN 122029374 ACN122029374 ACN 122029374ACN-122029374-A

Abstract

The present disclosure provides methods and apparatus for adapting internet protocols in low speed wireless networks for hydrogen fueling communications. The method comprises the steps of assigning a self network layer address or a self IP address by the mobile device when a data link between the mobile device and the allocator is activated, distributing the self assigned IP address to the network node and performing duplicate address detection, and performing hydrogen fueling communication with the allocator based on the self assigned IP address, including communication protocol negotiation, fueling protocol negotiation, and fueling parameter negotiation.

Inventors

  • SHEN MINHAO

Assignees

  • 现代自动车株式会社
  • 起亚株式会社
  • 明知大学校产学协力团

Dates

Publication Date
20260512
Application Date
20241011
Priority Date
20231013

Claims (20)

  1. 1. An internet protocol adaptation method for a low speed wireless network (low speed wireless network) performed by a hydrogen fuelling (hydrogen fuelling) mobile body in a hydrogen fuelling (hydrogen fuelling) communication, the method comprising: Assigning, by the mobile body, a network layer address or an internet protocol (internet protocol, IP) address of the mobile body when a data link between the mobile body and an assigner is activated; distributing, by the mobile, context information to at least some nodes belonging to a distributor network by header compression of messages used in a hydrogen fueling communication session; performing, by the mobile body, a communication protocol negotiation with the dispatcher based on the IP address; Performing a fuel supply protocol negotiation with the dispenser based on the IP address, and Fuel supply parameter negotiations are performed with the dispenser based on the IP address.
  2. 2. The method of claim 1, further comprising: Performing, by the mobile body, duplicate address detection (duplicate address detection, DAD) of the IP address allocated to itself for the node of the network, Wherein the mobile body is configured to support adaptation of 6LoWPAN (IPv 6 of low power wireless personal area network).
  3. 3. The method of claim 2, wherein performing the duplicate address detection comprises exchanging duplicate address request messages and duplicate address acknowledgement messages with routers of the low speed wireless network.
  4. 4. A method according to claim 3, further comprising: a broadcast neighbor request (NS) message including an address registration option (address registration option, ARO) is sent by the mobile to the dispatcher or to a router or host managing the wireless connection of the dispatcher.
  5. 5. The method of claim 1, further comprising: An internet protocol version 6 (internet protocol version 6, ipv 6) address is automatically generated by the mobile body based on an arbitrary number or random number so as to assign the IP address.
  6. 6. The method of claim 5, wherein the IPv6 address is a random IPv6 address that is unassociated with a medium access control (medium access control, MAC) address of the mobile body.
  7. 7. The method of claim 1, further comprising: An additional global scope or temporary global scope internet protocol version 6 (internet protocol version 6, ipv 6) address is generated by the mobile body based on any interface identifier or random number to be used with the global scope address in order to assign the IP address.
  8. 8. The method of claim 7, further comprising: A header stack of internet protocol version 6 (internet protocol version 6, ipv 6) addresses in messages for one or more of communication protocol negotiation, fueling parameter negotiation, security sign-on, monitoring and control, security sign-off, termination, error handling, and emergency handling is compressed.
  9. 9. The method of claim 8, wherein compressing the header stack comprises prefix-encapsulating the header stack to a datagram encapsulated by LoWPAN (low power wireless personal area network) transmitted according to a data frame format of ZigBee.
  10. 10. The method of claim 1, wherein the context information comprises a context for encoding a source address or a context for encoding a destination address, and The field size of the context identifier, including the source context identifier and the destination context identifier, is 4 bits for each address and supports a maximum of 16 contexts.
  11. 11. The method of claim 1, further comprising: evaluating, by the mobile, wireless link performance of the distributor network using data collected by spectrum resource measurement (spectrum resource measurement, SRM), or The radio link characteristics are obtained by exchanging information with another node of the distributor network via a reporting message.
  12. 12. The method of claim 1, further comprising: Receiving, by the mobile body, information about maximum transmission power from a network coordinator of the distributor network, and And setting a wireless parameter variable based on the maximum transmission power.
  13. 13. An internet protocol adaptation device for a low speed wireless network (low speed wireless network) in hydrogen fueling (hydrogen fueling) communication, comprising: a memory configured to store one or more instructions, and A processor configured to connect to the memory and execute the one or more instructions, Wherein, with the one or more instructions, the processor is configured to: Assigning a network layer address or an IP address to a mobile body when a communication channel between the mobile body and an allocator is successfully discovered, connected, and paired, when a connection of a physical layer and a data link layer is established, or when a data link is activated; processing duplicate address detection (duplicate address detection, DAD) of the IP address allocated by itself for the nodes of the network of the allocator; Processing a communication protocol negotiation with the dispatcher; handling fuel supply protocol negotiations with the dispenser, and The process negotiates with the fueling parameters of the dispenser.
  14. 14. The device of claim 13, wherein the mobile body is configured to support adaptation of 6LoWPAN (IPv 6 of low power wireless personal area network) using internet protocol version 6 (internet protocol version 6, IPv 6), and The processor is configured to automatically generate an internet protocol version 6 (internet protocol version 6, ipv 6) address based on an arbitrary number or random number to assign the IP address, or to generate an internet protocol version 6 (internet protocol version 6, ipv 6) address of an additional global scope or temporary global scope based on an arbitrary interface identifier or random number to be used with the global scope address to assign the IP address, and The IPv6 address is a random IPv6 address that is unassociated with the MAC address of the mobile body.
  15. 15. The device of claim 14, wherein the processor is further configured to compress a header stack of internet protocol version 6 (internet protocol version 6, ipv 6) addresses in messages for at least one of communication protocol negotiation, fuel supply parameter negotiation, security sign-on, monitoring and control, security sign-off, termination, error handling, and emergency handling.
  16. 16. The device of claim 15, wherein the processor is configured to prefix an encapsulated header stack to a LoWPAN (low power wireless personal area network) encapsulated datagram sent over a data frame format according to ZigBee when compressing the header stack.
  17. 17. The device of claim 13, wherein the processor is configured to exchange a duplicate address request message and a duplicate address acknowledgement message with a router of the low speed wireless network when performing the duplicate address detection.
  18. 18. An internet protocol adaptation method for a low speed wireless network (low speed wireless network) performed by a dispenser control system or dispenser in hydrogen fueling (hydrogen fueling) communication, the method comprising: receiving from the mobile body an IPv6 address assigned by itself when a data link between the dispenser and the mobile body receiving fueling from the dispenser is activated, and Duplicate address detection (duplicate address detection, DAD) of the IP address allocated by the allocator itself is performed in a node of the allocator's network.
  19. 19. The method of claim 18, further comprising: Compressing, by the dispatcher, a header stack of internet protocol version 6 (internet protocol version 6, ipv 6) addresses in messages for at least one of communication protocol negotiation, fueling parameter negotiation, secure sign-on, monitoring and control, secure sign-off, termination, error handling and emergency handling, Wherein the message includes a message for one or more of communication protocol negotiation, fuel supply parameter negotiation, secure sign-on, monitoring and control, secure sign-off, termination, error handling, and emergency handling, and Compressing the header stack includes prefix of an encapsulated header stack to a datagram encapsulated by LoWPAN (low power wireless personal area network) transmitted according to a data frame format of ZigBee.
  20. 20. The method of claim 18, wherein performing the duplicate address detection comprises exchanging duplicate address request messages and duplicate address acknowledgement messages with routers of the low speed wireless network.

Description

Method and apparatus for adapting internet protocol in low speed wireless network for hydrogen fueling communication Technical Field The present disclosure relates to a technique of adapting internet protocol version 6 (internet protocol version 6, IPv 6) to a low-speed wireless network in hydrogen fueling communication for a hydrogen fuelled mobile body (hydrogen fuelled mobile body), and more particularly, to a method and apparatus of adapting 6LoWPAN (IPv 6 of low-power wireless personal area network) in hydrogen fueling communication between a mobile body such as a hydrogen fuelled vehicle and a dispenser of a hydrogen addition station. Background The hydrogen fuel moving body (hydrogen fuel moving body) refers to a moving body that uses hydrogen as an energy source or generates electric energy by using hydrogen fuel and drives an electric motor by using the generated electric energy. The hydrogen fuel moving body (hydrogen fuel moving body) includes hydrogen vehicles, hydrogen electric vehicles, industrial trucks, trains, ships, aircraft, air moving bodies, personal moving body devices, and the like. In the case of vehicles, hydrogen fuel moving bodies (hydrogen fuel moving bodies) are largely classified into hydrogen electric vehicles and hydrogen fuel automobiles. Such a vehicle is also called a hydrogen-fuelled vehicle (hydrogen-fuelled vehicle). A hydrogen electric vehicle refers to a zero-emission vehicle that moves by electric energy generated when high-pressure hydrogen stored in the vehicle encounters air in the atmosphere. The hydrogen electric vehicle is also called a Fuel Cell Electric Vehicle (FCEV) or simply a hydrogen vehicle. Most hydrogen electric vehicles generate electric power by using a fuel cell system using hydrogen as an energy source and move by driving a motor with the generated electric power. Among the hydrogen electric vehicles, not only pure water H 2 O is discharged during power generation but also fine dust in the atmosphere is removed during traveling, and thus, as an environmentally friendly moving body in the future, the hydrogen electric vehicle is attracting attention. A hydrogen-fueled vehicle (hydrogen-fueled vehicle) is a vehicle that uses hydrogen as a fuel, but unlike a hydrogen-electric vehicle, the hydrogen-fueled vehicle burns hydrogen directly in an internal combustion engine (internal combustion engine, ICE), and drives an electric motor of the vehicle by heat generated by the combustion. The hydrogenation scheme for hydrogen fuelled automobiles is not significantly different from that for hydrogen electric vehicles. The above-described hydrogen fuel moving body (hydrogen fuel moving body) has received a great deal of attention as a technology having a potential to be utilized in the entire industry because hydrogen used as a fuel is almost limitless on the earth and the process of generating energy is environmentally friendly. Meanwhile, institute of electrical and electronics engineers (Institute of ELECTRICAL AND Electronics Engineers) IEEE 802.15.4 is one of standards for low-speed wireless personal area networks (LR-WPAN) and is also called Zigbee, and IEEE 802.15.4 defines a physical PHY layer and a medium access control MAC layer for LR-WPAN devices. In addition, 6LoWPAN (IPv 6 of low power wireless personal area network) is an organization standardized for architecture using internet protocol version 6 (IPv 6) on low power wireless personal area network (low power WPAN, loWPAN) and sensor networks represented by IEEE 802.15.4. LoWPAN may correspond to LR-WPAN. 6LoWPAN is one of the work groups of the Internet Engineering Task Force (IETF) and is an organization standardized for architecture using internet protocols in LR-WPAN, sensor networks, etc. represented by IEEE 802.15.4. Here, IEEE 802.15.4 refers to a technology of directly interconnecting a so-called sensor network and an IPv6 internet protocol version 6 network. For example, IEEE 802.15.4 is used to collect information from sensors of a sensor network used in a factory or the like, and to transmit signals for controlling various sensors from a management server to the sensors. On the other hand, a hydrogen fueling mobile (hydrogen fueling mobile) needs to access a hydrogen station having a dispenser to receive the hydrogen fueling service. Further, in a hydrogen fuel moving body (hydrogen fuel moving body), there is actively studied that hydrogen fueling communication with a dispenser is performed by an internet protocol in a wireless network installed in a hydrogen addition station (particularly, loWPAN installed in the hydrogen addition station) according to a trend of unmanned operation and/or automation of the hydrogen addition station. Most nodes of a control network or a sensor network used in LoWPAN are installed to be wirelessly connected to the network based on a wireless communication technology. In this case, the nodes of the control network or sensor network are required to mee