WO2022001665A1 - Procédé de communication pour dispositif monté sur véhicule, dispositif monté sur véhicule, support d'enregistrement et appareil électronique - Google Patents

Procédé de communication pour dispositif monté sur véhicule, dispositif monté sur véhicule, support d'enregistrement et appareil électronique Download PDF

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Publication number
WO2022001665A1
WO2022001665A1 PCT/CN2021/100395 CN2021100395W WO2022001665A1 WO 2022001665 A1 WO2022001665 A1 WO 2022001665A1 CN 2021100395 W CN2021100395 W CN 2021100395W WO 2022001665 A1 WO2022001665 A1 WO 2022001665A1
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vehicle
data
network
board
vehicle device
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PCT/CN2021/100395
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English (en)
Chinese (zh)
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王小兵
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/48—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for in-vehicle communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management

Definitions

  • Embodiments of the present invention relate to the field of mobile Internet, and in particular, to a communication method for in-vehicle equipment, an in-vehicle equipment, a storage medium, and an electronic device.
  • Embodiments of the present invention provide a vehicle-mounted device communication method, a vehicle-mounted device, a storage medium and an electronic device, so as to at least solve the problem of low communication reliability of vehicle-mounted products in high-speed driving in the related art.
  • a method for communicating with on-board equipment including: establishing a communication connection between on-board equipment of a first vehicle and on-board equipment of a second vehicle through short-range communication;
  • the in-vehicle device of the second vehicle sends the first data to the network end;
  • the in-vehicle device of the first vehicle receives the second data from the network end forwarded by the in-vehicle device of the second vehicle.
  • the method may further include, when the in-vehicle device of the first vehicle is powered on, turn on the first The identification information of the vehicle is sent to the network terminal.
  • the method may further include checking the network access status of the in-vehicle device of the first vehicle.
  • establishing a communication connection between the in-vehicle device of the first vehicle and the in-vehicle device of the second vehicle through short-range communication may include: when the network access state of the in-vehicle device of the first vehicle is not normal, using short-range communication A communication connection is established with the in-vehicle device of the second vehicle.
  • the method may further include: the in-vehicle device of the first vehicle sends a broadcast requesting help to the in-vehicle device of the second vehicle message; the on-board device of the first vehicle receives an authorization message for providing assistance responded by the on-board device of the second vehicle; the on-board device of the first vehicle sends a request type message to the on-board device of the second vehicle, wherein , the request type message carries the reason for seeking help of the on-board device of the first vehicle and the network identification information of the on-board device of the first vehicle; the on-board device of the first vehicle receives the on-board device of the second vehicle
  • the response message sent wherein the response message carries information on whether the on-board equipment of the second vehicle and the on-board equipment of the first vehicle belong to the same network or a different network; the on-board equipment of the first vehicle is based on The response message selects the in
  • the sending, by the on-board device of the first vehicle, the first data to the network through the on-board device of the second vehicle may include: the on-board device of the first vehicle sending the first data to the in-vehicle device of the second vehicle, wherein the first data includes identification information of the first vehicle.
  • the receiving, by the in-vehicle device of the first vehicle, the second data from the network that is forwarded by the in-vehicle device of the second vehicle may include: receiving, by the in-vehicle device of the first vehicle, the second vehicle The second data from the network terminal is forwarded by the vehicle-mounted device of the vehicle, and the data information sent by the network terminal to itself is parsed according to the identification information of the first vehicle carried in the second data.
  • an on-board device communication method comprising: establishing a communication connection between the on-board device of the second vehicle and the on-board device of the first vehicle by means of short-range communication;
  • the in-vehicle device receives the first data sent by the in-vehicle device of the first vehicle, and sends the first data to the network;
  • the in-vehicle device of the second vehicle receives the second data from the network, and sends the first data to the network.
  • Two data are sent to the in-vehicle device of the first vehicle.
  • the method may further include: the in-vehicle device of the second vehicle receives the first data The in-vehicle device of the second vehicle sends a broadcast message requesting help; the in-vehicle device of the second vehicle sends an authorization message for providing assistance to the in-vehicle device of the first vehicle; the in-vehicle device of the second vehicle receives the information of the first vehicle A request type message sent by the in-vehicle device, wherein the request type message carries the reason for seeking help of the in-vehicle device of the first vehicle and the network identification information of the in-vehicle device of the first vehicle; the in-vehicle device of the second vehicle Sending a response message to the on-board device of the first vehicle, wherein the response message carries information on whether the on-board device of the second vehicle and the on-board device of the first vehicle
  • the method may further include: the on-board device of the second vehicle receives the data sent by the on-board device of the first vehicle. Identification information of the first vehicle.
  • the in-vehicle device of the second vehicle receives first data sent by the in-vehicle device of the first vehicle, and sends the first data to the network, which may include: the second The in-vehicle device of the vehicle receives the first data sent by the in-vehicle device of the first vehicle, and sends the identification information of the first vehicle and the first data to the network terminal.
  • the in-vehicle device of the second vehicle receives the second data from the network, and sends the second data to the first vehicle, which may include: the in-vehicle device of the second vehicle Receive the second data from the network; the in-vehicle device of the second vehicle judges whether the second data is data to be forwarded according to the flag bit field in the data packet of the second data; when the second data When the data needs to be forwarded, the second data is forwarded to the in-vehicle device of the first vehicle according to the identification information of the first vehicle carried in the data of the second data.
  • an in-vehicle device is provided, the in-vehicle device is located in a first vehicle, and includes: an establishment module configured to establish a communication connection with an in-vehicle device of a second vehicle through short-range communication; a sending module, The on-board device of the second vehicle is configured to send the first data to the network terminal; the receiving module is configured to receive the second data from the network terminal forwarded by the on-board device of the second vehicle.
  • the sending module may be further configured to send the identification information of the first vehicle to the network terminal when the in-vehicle device of the first vehicle is powered on.
  • it may further include: a checking module configured to check the network access status of the in-vehicle device of the first vehicle.
  • an in-vehicle device is provided, the in-vehicle device is located in a second vehicle, and includes: a communication module configured to establish a communication connection with the in-vehicle device of the first vehicle through short-range communication;
  • the first transceiver module is configured to receive the first data sent by the in-vehicle device of the first vehicle, and send the first data to the network end;
  • the second transceiver module is configured to receive the second data from the network end, and The second data is sent to the in-vehicle device of the first vehicle.
  • a computer-readable storage medium is also provided, and a computer program is stored in the computer-readable storage medium, wherein the computer program is configured to execute any one of the above methods when running steps in the examples.
  • an electronic device comprising a memory and a processor, wherein the memory stores a computer program, the processor is configured to run the computer program to execute any of the above Steps in Method Examples.
  • the on-board equipment of the first vehicle can perform data transmission with the network terminal through the on-board equipment of the second vehicle in the case of abnormal network access, it is possible to solve the problem of reliable communication of on-board products in the related art. It can improve the safety of vehicle-mounted products during high-speed driving.
  • FIG. 1 is a flowchart of a vehicle-mounted device communication method according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for communicating with an in-vehicle device according to an optional embodiment of the present invention
  • FIG. 3 is a structural block diagram of a vehicle-mounted device according to an embodiment of the present invention.
  • FIG. 4 is a structural block diagram of an in-vehicle device according to an optional embodiment of the present invention.
  • FIG. 5 is a structural block diagram of a vehicle-mounted communication system according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a layered structure of an on-board module of the vehicle according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a layered structure of an on-board module of an adjacent vehicle according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a hierarchical structure of a network processing module according to an embodiment of the present invention.
  • FIG. 9 is a flowchart of a method for secure communication according to an embodiment of the present invention.
  • FIG. 10 is a flowchart of the selection and assistance process of neighboring vehicles in different networks according to an embodiment of the present invention.
  • FIG. 11 is a flowchart of a secure communication method according to an optional embodiment of the present invention.
  • FIG. 12 is a schematic diagram of a data packet encapsulation format according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a method for communicating with on-board equipment according to an embodiment of the present invention. As shown in FIG. 1 , the flow includes the following steps:
  • Step S101 the on-board device of the first vehicle establishes a communication connection with the on-board device of the second vehicle through short-range communication;
  • Step S102 the on-board device of the first vehicle sends the first data to the network through the on-board device of the second vehicle;
  • Step S103 the in-vehicle device of the first vehicle receives the second data from the network that is forwarded by the in-vehicle device of the second vehicle.
  • the method may further include: sending the identification information of the first vehicle to the network terminal when the in-vehicle device of the first vehicle is powered on.
  • the method may further include: checking the network access state of the in-vehicle device of the first vehicle.
  • step S101 may include: establishing a communication connection with the in-vehicle device of the second vehicle through short-range communication when the network access state of the in-vehicle device of the first vehicle is abnormal.
  • the method may further include: the in-vehicle device of the first vehicle sends a broadcast message requesting help to the in-vehicle device of the second vehicle; the in-vehicle device of the first vehicle receives the second The on-board device of the vehicle responds with an authorization message for providing assistance; the on-board device of the first vehicle sends a request type message to the on-board device of the second vehicle, wherein the request type message carries the on-board device of the first vehicle The reason for seeking help and the network identification information of the in-vehicle device of the first vehicle; the in-vehicle device of the first vehicle receives a response message sent by the in-vehicle device of the second vehicle, wherein the response message carries the information on whether the on-board device of the second vehicle and the on-board device of the first vehicle belong to the same network or a different network; the on-board device of the first vehicle selects the on-board device of the second vehicle as a communication device according to the response message
  • step S102 may include: the in-vehicle device of the first vehicle sending the first data to the in-vehicle device of the second vehicle, wherein the first data includes the first vehicle identification information.
  • step S103 may include: the in-vehicle device of the first vehicle receives the second data from the network terminal forwarded by the in-vehicle device of the second vehicle, and according to the second data carried in the second data The identification information of a vehicle is parsed to obtain the data information sent by the network terminal to itself.
  • the in-vehicle device of the first vehicle transmits data to the network through the in-vehicle device of the second vehicle
  • the problem of low communication reliability in the in-vehicle products and smart home appliances in the related art is solved, and the in-vehicle products are improved.
  • the reliability of product communication such as smart home appliances enhances the security of product communication.
  • FIG. 2 is a flowchart of a method for communicating with in-vehicle equipment according to an optional embodiment of the present invention. As shown in FIG. 2 , the process includes the following steps:
  • Step S201 establishing a communication connection between the vehicle-mounted device of the second vehicle and the vehicle-mounted device of the first vehicle through short-range communication;
  • Step S202 the in-vehicle device of the second vehicle receives the first data sent by the in-vehicle device of the first vehicle, and sends the first data to the network;
  • Step S203 the in-vehicle device of the second vehicle receives the second data from the network, and sends the second data to the in-vehicle device of the first vehicle.
  • the method may further include: the on-board device of the second vehicle receives a broadcast message requesting help sent by the on-board device of the first vehicle; the on-board device of the second vehicle sends a message to the first vehicle.
  • the on-board device of a vehicle sends an authorization message for providing assistance;
  • the on-board device of the second vehicle receives a request type message sent by the on-board device of the first vehicle, wherein the request type message carries the on-board device of the first vehicle
  • the on-board device of the second vehicle sends a response message to the on-board device of the first vehicle, wherein the response message carries the information on whether the in-vehicle device of the second vehicle and the in-vehicle device of the first vehicle belong to the same network or a different network.
  • the method may further include: the in-vehicle device of the second vehicle receives the identification information of the first vehicle sent by the in-vehicle device of the first vehicle.
  • step S202 may include: the in-vehicle device of the second vehicle receives the first data sent by the in-vehicle device of the first vehicle, and combines the identification information of the first vehicle with the first data sent to the network.
  • step S203 may include: the in-vehicle device of the second vehicle receives the second data from the network; the in-vehicle device of the second vehicle according to the flag bit in the data packet of the second data field to determine whether the second data is data to be forwarded; when the second data is data to be forwarded, the second data is forwarded to the On-board equipment of the first vehicle.
  • an in-vehicle device is also provided, and the device is used to implement the above-mentioned embodiments and preferred implementations, and what has been described will not be repeated.
  • the term "module” may be a combination of software and/or hardware that implements a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, implementations in hardware, or a combination of software and hardware, are also possible and contemplated.
  • FIG. 3 is a structural block diagram of an in-vehicle device according to an embodiment of the present invention. As shown in FIG. 3 , the device is located in a first vehicle and includes a building module 10 , a sending module 20 and a receiving module 30 .
  • the establishing module 10 is configured to establish a communication connection with the vehicle-mounted device of the second vehicle through short-range communication.
  • the sending module 20 is configured to send the first data to the network through the in-vehicle device of the second vehicle.
  • the receiving module 30 is configured to receive the second data from the network that is forwarded by the in-vehicle device of the second vehicle.
  • the sending module 20 may be further configured to send the identification information of the first vehicle to the network terminal when the in-vehicle device of the first vehicle is turned on.
  • a checking module 40 may be further included, configured to check the network access state of the in-vehicle device of the first vehicle.
  • FIG. 4 is a structural block diagram of an in-vehicle device according to an optional embodiment of the present invention. As shown in FIG. 4 , the device is located in a second vehicle and includes a communication module 50 , a first transceiver module 60 and a second transceiver module 70 .
  • the communication module 50 is configured to establish a communication connection with the vehicle-mounted device of the first vehicle by means of short-range communication;
  • the first transceiver module 60 is configured to receive the first data sent by the in-vehicle device of the first vehicle, and send the first data to the network;
  • the second transceiver module 70 is configured to receive the second data from the network, and send the second data to the in-vehicle device of the first vehicle.
  • the above modules can be implemented by software or hardware, and the latter can be implemented in the following ways, but not limited to this: the above modules are all located in the same processor; or, the above modules can be combined in any combination The forms are located in different processors.
  • Embodiments of the present invention further provide a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, wherein the computer program is configured to execute the steps in any of the above method embodiments when running.
  • the above-mentioned computer-readable storage medium may include, but is not limited to, a USB flash drive, a read-only memory (Read-Only Memory, referred to as ROM for short), and a random access memory (Random Access Memory, referred to as RAM for short) , mobile hard disk, magnetic disk or CD-ROM and other media that can store computer programs.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • An embodiment of the present invention also provides an electronic device, comprising a memory and a processor, where a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any of the above method embodiments.
  • the above-mentioned electronic device may further include a transmission device and an input-output device, wherein the transmission device is connected to the above-mentioned processor, and the input-output device is connected to the above-mentioned processor.
  • the in-vehicle product After the 4G network is abnormally disconnected, the in-vehicle product cannot be restored in many cases.
  • the data communication of the in-vehicle product will be interrupted in the LTE 4G network, resulting in the in-vehicle product unable to communicate with the network, and in some cases In this state, the product itself cannot be restored.
  • the user can reopen the data connection in the user interface to restore, or restart the device to restore.
  • the information sent by the network terminal will not be received, especially some important reminder information, such as security patches sent by the manufacturer, important reminder information, etc., which are unsafe for products such as in-vehicle products and smart home appliances. .
  • the embodiment of the present invention focuses on improving the communication reliability of products such as in-vehicle products and smart home appliances, so as to enhance their security.
  • the vehicle that is, the “first vehicle” mentioned above, the same below
  • the neighboring vehicle that is, the "second vehicle” mentioned above
  • the vehicle initiates a help message to transmit a unique identification, such as: the frame number (VIN, vehicle identification code), the frame number is a set of character codes assigned to a vehicle by the manufacturer for identification.
  • the adjacent vehicle transmits the frame number of the vehicle to the network side, the network side will add the frame number identification to the data packet sent to the vehicle and send it to the adjacent vehicle, the adjacent vehicle will start the detection mechanism, and the detection data packet will be sent to In this way, the vehicle uses the unique encapsulation package of the frame number to receive the information sent by the network to the vehicle, including broadcast information.
  • the embodiments of the present invention can be applied to in-vehicle products under 5G network, NB IOT products, smart home appliances, unmanned driving and other terminal products that can receive network and cloud control commands.
  • the embodiments of the present invention can be used in a low-latency network environment such as 5G, and improve the security of communication products by means of an environment where everything is interconnected.
  • FIG. 5 is a structural block diagram of an in-vehicle communication system according to an embodiment of the present invention.
  • the in-vehicle communication system of this embodiment includes an in-vehicle module 100 of the own vehicle, an in-vehicle module 200 of an adjacent vehicle, and a network processing module 300 . There may be multiple modules 200 (only one is shown in the figure).
  • the on-board module 100 of the own vehicle is arranged in the own vehicle
  • the on-board module 200 of the adjacent vehicle is located in the adjacent vehicle
  • the network processing module 300 is located at the network end.
  • Both the on-board module 100 of the own vehicle and the on-board module 200 of the neighboring vehicle can communicate with the network processing module 300 through normal network communication, and the on-board module 100 of the own vehicle and the on-board module 200 of the neighboring vehicle can communicate through short-distance communication.
  • FIG. 6 is a structural block diagram of the layered structure of the on-board module of the own vehicle according to an embodiment of the present invention.
  • the on-board module 100 of the own vehicle may further include an inspection network module 110, a module for detecting adjacent vehicles 120, and a module for receiving adjacent vehicles and forwarding 130 , a data parsing module 140 .
  • the checking network module 110 is mainly configured to check the network status in real time to determine whether the network can be accessed normally.
  • the adjacent vehicle detection module 120 is mainly configured to find the adjacent vehicle on-board module and establish short-distance communication with the adjacent vehicle's on-board module when the network is abnormal.
  • the receiving adjacent vehicle forwarding module 130 is mainly configured to receive data packets from the network processing module 300 forwarded by the adjacent vehicle on-board module.
  • the data parsing module 140 is mainly configured to parse its own data information from the data packet.
  • FIG. 7 is a structural block diagram of a layered structure of an on-board module of an adjacent car according to an embodiment of the present invention.
  • the on-board module 200 of an adjacent car may further include a module 210 for accepting the connection of the own car, a module for uploading identification 220, and a module for checking data packets 230, the data packet forwarding module 240.
  • the accepting own vehicle connection module 210 is mainly configured to accept the help request message from the own vehicle on-board module, respond to the authorization message to the own vehicle on-board module, and establish short-distance communication with the own vehicle on-board module.
  • the uploading identification module 220 is mainly configured to upload the identification of the vehicle to the network processing module.
  • the checking data packet module 230 is mainly configured to check the received data packet and determine whether to forward the data packet or its own data packet.
  • the data packet forwarding module 240 is mainly configured to forward the data packets of the on-board module of the vehicle sent by the network processing module to the on-board module of the vehicle.
  • FIG. 8 is a structural block diagram of a hierarchical structure of a network processing module according to an embodiment of the present invention. As shown in FIG. 8 , the network processing module 300 further includes a receiving and identifying module 310 and a packet grouping module 320 .
  • the identification accepting module 310 is configured to receive the identification of the vehicle uploaded by the vehicle-mounted module of the adjacent vehicle, and bind the identification of the vehicle with the IP address of the vehicle-mounted module of the vehicle.
  • the package sending module 320 is configured to encapsulate the data packet sent to the on-board module of the own vehicle, and send it to the on-board module of the adjacent car.
  • FIG. 9 is a flowchart of a secure communication method according to an embodiment of the present invention. As shown in FIG. 9 , the communication method provided by this embodiment specifically includes the following step:
  • Step S901 when the on-board module of the vehicle is turned on, it sends the vehicle such as the unique identification frame number of the vehicle to the network terminal.
  • Step S902 The on-board module of the vehicle checks the vehicle speed, and checks the network status in real time and whether the network can be accessed normally when driving at high speed (for example, the speed is greater than nKm/h, where n is a settable constant).
  • Judgment S903 Judging whether the access network is normal, and determining whether help from a different network is required.
  • Step S904 discovering the adjacent car, and sending a message requesting the network operator name of the adjacent car to the adjacent car, if the adjacent car is registered in a different network and accepts the request, the own car sends a help message containing information such as the frame number.
  • Step S905 The adjacent vehicle onboard sends the received frame number of the own vehicle to the network terminal.
  • Step S906 The network adds the data sent to the own vehicle, such as the identification of the frame number, and sends it to the neighboring vehicle.
  • Step S907 the adjacent vehicle on-board detects and forwards the data packet.
  • Step S908 The vehicle receives the data packet and checks whether it is its own information packet.
  • step S1001 the vehicle connects to the adjacent vehicle through the proximity discovery protocol, and sends a request broadcast message to the adjacent vehicle. After the adjacent vehicle detects the request message, it sends out authorization information according to the same packet format.
  • Step 1002 the vehicle sends a request for help according to event 1.
  • Event 1 The vehicle sends the reason for seeking help (the network has no service or the data packet cannot reach the network, etc.) and the latest access network identifier (MCC MNC, etc.) of the vehicle to the neighboring vehicle.
  • MCC MNC latest access network identifier
  • Step S1003 the adjacent vehicle triggers event 2 to respond to the own vehicle.
  • Event 2 is: the neighboring car obtains a response to the own vehicle based on the reason for the help of the own vehicle, compares its own network ID.
  • the network identification comparison result is that the help level is set to 2 on the same network side. If the network identification comparison result is that the identification help level of the different network side is 1.
  • step S1004 the own vehicle triggers event 3 and selects a neighboring vehicle to obtain help.
  • Event 3 The vehicle receives the reply from the neighbor vehicle and checks the help level. If the vehicle self-check is not in the service area, it selects a neighbor vehicle with a help level of 1 and disconnects other neighbor vehicles.
  • the embodiment of the present invention also provides an optional secure communication method.
  • the implementation of the entire solution is described in detail below with reference to FIG. 11 :
  • Step S1101 When the vehicle is powered on, the vehicle, such as the unique identification frame number, is sent to the network terminal, and the network terminal binds the received vehicle frame number with the IP address assigned to the vehicle product.
  • the network receives a request from a neighboring car to carry the frame number information, the network can identify which car information needs to be forwarded through the neighboring car.
  • Step S1102 The vehicle on-board checks the network status in real time, whether it cannot accept network information for a long time, and whether it can access the network normally. After completing the routine detection, such as retrying to register the network timeout, etc., it still does not recover, and executes according to the judgment step S1103.
  • Step S1104 the vehicle discovers a nearby vehicle, and once the connection is established, the connection can be established by means of C-V2X (mobile vehicle networking), wherein C-V2X implements the 3GPP standard.
  • C-V2X mobile vehicle networking
  • the vehicle sends a request for help message and waits for the response from the neighbor vehicle.
  • the vehicle After receiving the response from the neighbor vehicle, the vehicle immediately sends its own information such as the frame number to the neighbor vehicle.
  • Step S1105 The neighbor car receives the help request and the frame number information from the own vehicle, sends the help request and the frame number to the network, and starts the detection process to distinguish whether it is its own information packet or whether it needs to be forwarded to the neighbor. car packet.
  • Step S1106 The network terminal receives the request packet sent by the adjacent car and the frame number information of the vehicle, uses the frame number to match the IP address according to the binding information of the IP address and the frame number described in step S1101, and sends the information to the vehicle that needs to be sent to the vehicle.
  • the data packet generated carries the frame number information and is sent to the adjacent car.
  • the network side can execute according to the packet encapsulation format of FIG. 12 .
  • Step S1106 The adjacent vehicle receives the packet sent by the network and detects whether it carries the flag bit and the vehicle frame number information. If this information is carried, the side is the information packet that needs to be sent to the vehicle for help, and the side forwards the data packet to the vehicle. vehicle.
  • Step S1107 After the vehicle receives the information data packet forwarded from the neighboring vehicle, it parses out the data information sent to it by the network.
  • FIG. 12 is a schematic diagram of a data packet encapsulation format according to an embodiment of the present invention.
  • the network side when the network side encapsulates an IP packet, it re-encapsulates the data packet that needs to be forwarded to the vehicle by a neighboring vehicle, specifically using an IP packet header.
  • the optional option is not used, and the flag bit can be set to identify the packet as a data packet that needs to be forwarded. For example, if the bit flag is set, it can be set to 10101010 in 8 bits of the 32 bits. The combined flag flag is true.
  • the neighboring vehicle needs to check whether the flag is true when receiving the new package. If it is true, it is considered that it needs to be forwarded to the vehicle. If it is not true, it is considered to be true. Its own data packets do not need to be forwarded.
  • the embodiments of the present invention can be applied to the case where the network area cannot be accessed normally.
  • the embodiment of the present invention has the characteristics of improving product performance and restoring the function of accessing the network.
  • the embodiments of the present invention can enhance the security of vehicle-mounted products and smart home appliances, and receive server-side, cloud-based control information, important data, and the like in the event of an abnormal situation where the network cannot be accessed.
  • the embodiment of the present invention can also timely inform the user of the abnormality of the vehicle-mounted product, and instruct the investigation as soon as possible.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, and they can be centralized on a single computing device or distributed in a network composed of multiple computing devices
  • they can be implemented in program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, can be performed in a different order than shown here.
  • the described steps, or they are respectively made into individual integrated circuit modules, or a plurality of modules or steps in them are made into a single integrated circuit module to realize.
  • the present invention is not limited to any particular combination of hardware and software.

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  • Mobile Radio Communication Systems (AREA)

Abstract

Des modes de réalisation de la présente invention concernent un procédé de communication pour un dispositif monté sur véhicule, le dispositif monté sur véhicule, un support d'enregistrement et un appareil électronique. Le procédé comprend les étapes suivantes : un dispositif monté sur véhicule d'un premier véhicule établit une connexion de communication avec un dispositif monté sur véhicule d'un second véhicule au moyen d'une communication en champ proche ; le dispositif monté sur véhicule du premier véhicule envoie des premières données à un réseau au moyen du dispositif monté sur véhicule du second véhicule ; et le dispositif monté sur véhicule du premier véhicule reçoit des secondes données provenant du réseau transmis par le dispositif monté sur véhicule du second véhicule. Au moyen de la présente invention, en cas d'accès anormal au réseau, le dispositif monté sur véhicule du premier véhicule peut effectuer une transmission de données avec le réseau au moyen du dispositif monté sur véhicule du second véhicule, ce qui permet de résoudre le problème lié à la faible fiabilité de communication de produits montés sur véhicule dans l'état de la technique, et d'obtenir ensuite l'effet d'amélioration de la sécurité des produits montés sur véhicule dans une conduite à grande vitesse.
PCT/CN2021/100395 2020-06-28 2021-06-16 Procédé de communication pour dispositif monté sur véhicule, dispositif monté sur véhicule, support d'enregistrement et appareil électronique Ceased WO2022001665A1 (fr)

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