WO2023184264A1 - Procédés et appareils de mandataire de trafic, dispositif électronique et support de stockage - Google Patents

Procédés et appareils de mandataire de trafic, dispositif électronique et support de stockage Download PDF

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Publication number
WO2023184264A1
WO2023184264A1 PCT/CN2022/084176 CN2022084176W WO2023184264A1 WO 2023184264 A1 WO2023184264 A1 WO 2023184264A1 CN 2022084176 W CN2022084176 W CN 2022084176W WO 2023184264 A1 WO2023184264 A1 WO 2023184264A1
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WIPO (PCT)
Prior art keywords
data frame
terminal device
transmission channel
cloud server
local transmission
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PCT/CN2022/084176
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English (en)
Chinese (zh)
Inventor
李书珍
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北京小米移动软件有限公司
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Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2022/084176 priority Critical patent/WO2023184264A1/fr
Priority to CN202280000789.3A priority patent/CN114902635A/zh
Publication of WO2023184264A1 publication Critical patent/WO2023184264A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H04L69/163—In-band adaptation of TCP data exchange; In-band control procedures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H04L69/164—Adaptation or special uses of UDP protocol

Definitions

  • the present disclosure relates to the technical field of the Internet of Things, and in particular, to a traffic proxy method, device, electronic device and storage medium.
  • TCP Transmission Control Protocol
  • the present disclosure provides a traffic proxy method, device, electronic device and storage medium to at least solve the problem in related technologies that as the number of terminal devices increases, the pressure on TCP connections between terminal devices and cloud servers increases and network services are reduced. Quality issues.
  • a traffic proxy method is provided, which is suitable for proxy devices, including: establishing a transmission control protocol TCP connection channel with a cloud server; establishing a user connection with one or more terminal devices in the same Internet of Things Datagram protocol UDP local transmission channel; through the TCP connection channel and the UDP local transmission channel, the data frames required when the terminal device communicates with the cloud server are transmitted.
  • a traffic proxy method is provided, which is suitable for terminal devices, including: in response to establishing a User Datagram Protocol UDP local transmission channel with a proxy device in the Internet of Things, disconnecting from the cloud server The first TCP connection channel; transmits data frames required for communication with the cloud server through the UDP local transmission channel.
  • a traffic proxy device suitable for proxy equipment, including: a connection module configured to establish a transmission control protocol TCP connection channel with a cloud server; a first transmission module configured to Execute the establishment of a User Datagram Protocol UDP local transmission channel with one or more terminal devices in the same Internet of Things; the second transmission module is configured to execute the transmission of the User Datagram Protocol UDP local transmission channel through the TCP connection channel and the UDP local transmission channel. Data frames required when the terminal device communicates with the cloud server.
  • a traffic proxy device which is suitable for a terminal device and includes: a connection module configured to execute a response to establishing a User Datagram Protocol UDP local transmission channel with a proxy device in the Internet of Things , disconnect the first TCP connection channel with the cloud server; the transmission module is configured to perform transmission of data frames required for communication with the cloud server through the UDP local transmission channel.
  • an electronic device including: a processor; a memory for storing executable instructions of the processor; wherein the processor is configured to execute the instructions to Implement the traffic proxy method described in the first aspect of this disclosure embodiment or the second aspect of this disclosure embodiment.
  • a computer-readable storage medium which when instructions in the computer-readable storage medium are executed by a processor of an electronic device, enables the electronic device to execute the steps of the first embodiment of the present disclosure.
  • the technical solution provided by the embodiments of the present disclosure at least brings the following beneficial effects: the data frames required when the terminal device communicates with the cloud server can be transmitted through the TCP connection channel and the UDP local transmission channel, realizing the proxy for the terminal device traffic, It reduces the pressure on TCP connections between terminal devices and cloud servers and improves network service quality.
  • Figure 1 is a flow chart of a traffic proxy method according to an exemplary embodiment.
  • Figure 2 is a schematic diagram of a traffic proxy according to an exemplary embodiment.
  • Figure 3 is a flow chart of another traffic proxy method according to an exemplary embodiment.
  • Figure 4 is an interactive diagram illustrating the establishment of a UDP local transmission channel according to an exemplary embodiment.
  • Figure 5 is a flow chart of another traffic proxy method according to an exemplary embodiment.
  • Figure 6 is a flow chart of another traffic proxy method according to an exemplary embodiment.
  • Figure 7 is an interactive diagram illustrating closing a UDP local transmission channel according to an exemplary embodiment.
  • Figure 8 is a flow chart of another traffic proxy method according to an exemplary embodiment.
  • Figure 9 is a flow chart of a traffic proxy method according to an exemplary embodiment.
  • Figure 10 is a block diagram of a traffic proxy device according to an exemplary embodiment.
  • FIG. 11 is a block diagram of another traffic proxy device according to an exemplary embodiment.
  • FIG. 12 is a block diagram of an electronic device according to an exemplary embodiment.
  • FIG. 1 is a flow chart of a traffic proxy method according to an exemplary embodiment, which is applicable to a proxy device. As shown in Figure 1, the traffic proxy method according to the embodiment of the present disclosure is executed by the proxy device. The method may include the following steps :
  • the execution subject of the traffic proxy method in the embodiment of the present disclosure is a proxy device, where the proxy device includes but is not limited to mobile phones, tablet computers, notebooks, desktop computers, vehicle-mounted terminals, smart home appliances, etc.
  • the traffic proxy method of the embodiment of the present disclosure can be executed by the traffic proxy device of the embodiment of the present disclosure.
  • the traffic proxy device of the embodiment of the present disclosure can be configured in any proxy device to execute the traffic proxy method of the embodiment of the present disclosure.
  • optical modems or fiber-to-the-home routers need to perform NAT (Network Address Translation) conversion for the TCP connection channels corresponding to all terminal devices connected to the router, and the operator's equipment hardware resources are limited.
  • NAT Network Address Translation
  • the more terminal devices users connect to the Internet the greater the NAT conversion pressure on optical modems or home routers, thereby reducing network quality and affecting users' Internet experience.
  • the embodiment of the present disclosure proposes a traffic proxy method that transmits the data frames required when the terminal device communicates with the cloud server through the TCP connection channel and UDP (User Datagram Protocol, User Datagram Protocol) local transmission channel, which can The terminal device whose traffic is proxied no longer creates a separate TCP connection channel, thereby eliminating the NAT conversion pressure on the operator's equipment, breaking through the limit on the number of terminal devices connected to the network, and improving the quality of network service.
  • UDP User Datagram Protocol, User Datagram Protocol
  • the proxy device is a central device that performs traffic proxy for terminal devices in the Internet of Things
  • the cloud server is a cloud host that provides basic services and configurations for connected devices.
  • the proxy device and the cloud server can establish transmission control. Protocol TCP connection channel for processing and forwarding of subsequent communication messages, as shown in Figure 2.
  • the terminal device is a device in the Internet of Things, and a User Datagram Protocol UDP local transmission channel is established between the proxy device and the terminal device in the same Internet of Things for subsequent information reception and forwarding.
  • the number of terminal devices may be one or more. It should be noted that the initial state of the proxy device is connected to the cloud server. After the terminal device establishes a UDP local transmission channel with the proxy device, it will disconnect from the cloud server, and then exchange information through the UDP local transmission channel.
  • the specific categories of terminal devices are not too limited and can be set according to the actual situation.
  • the terminal devices may include but are not limited to air purifiers, curtain controllers, smart phones, etc. Door locks etc.
  • the terminal device is an Internet of Things WiFi device, which may include but is not limited to air purifiers, smart cameras, curtain motors, etc.
  • each terminal device and the agent device establish separate User Datagram Protocol UDP local transmission channel, the terminal device no longer directly establishes a TCP connection channel with the cloud server. All traffic between the terminal device and the cloud server is forwarded by the proxy device.
  • the proxy device and the proxy traffic UDP packets are used to exchange information between terminal devices.
  • S103 Transmit the data frames required when the terminal device communicates with the cloud server through the TCP connection channel and the UDP local transmission channel.
  • the proxy device proxies the data frames required for communication between the terminal device and the cloud server through the TCP connection channel established in step S101 and the UDP local transmission channel established in step S102.
  • the data frame is the data unit of communication data between the terminal device and the cloud server.
  • the terminal device sends the data frames required for communication to the proxy device through the UDP local transmission channel.
  • the proxy device After the proxy device receives the data frames sent by the terminal device, it sends the data frames through the TCP connection channel established with the cloud server.
  • the data frame is sent to the cloud server.
  • the cloud server receives the data frame sent by the proxy device and returns the corresponding data frame to the proxy device.
  • the proxy device After receiving the data frame returned by the cloud server, the proxy device sends it to the terminal device, thereby realizing Transmission of data frames required for communication between terminal devices and cloud servers.
  • the proxy device establishes a Transmission Control Protocol TCP connection channel with the cloud server, and establishes a User Datagram Protocol UDP local transmission channel with one or more terminal devices in the Internet of Things, through the TCP connection channel and UDP local transmission channel to transmit the data frames required when the terminal device communicates with the cloud server.
  • TCP connection channel the Transmission Control Protocol
  • UDP local transmission channel the User Datagram Protocol UDP local transmission channel
  • the data frames required for communication between the terminal device and the cloud server can be transmitted through the TCP connection channel and the UDP local transmission channel, realizing the proxy for the terminal device traffic and reducing the TCP connection between the terminal device and the cloud server. pressure, improving network service quality.
  • the proxy device establishes a User Datagram Protocol UDP local transmission channel with one or more terminal devices in the same Internet of Things.
  • the UDP local transmission channel needs to be based on the address information of both devices. to create.
  • the proxy device can obtain its own first address information, and may also need to obtain the second address information of the terminal device.
  • the UDP link establishment process can be executed to communicate with the terminal device. Establish a UDP local transmission channel between terminal devices.
  • the address information of the present disclosure is optionally IP address information.
  • the proxy device and the terminal device need to establish a UDP local transmission channel based on having the same user ID or bound account.
  • the proxy device can also obtain the second user identification bound to the terminal device and the first user identification bound to itself. When the two user identifications are consistent, establish a UDP local connection with the terminal device. transmission channel.
  • the terminal device may obtain the first user identification of the proxy device. When the terminal device determines that its second user identification is consistent with the first user identification, it sends the second address information and the second user identification to the proxy device.
  • the proxy device in order to ensure that the data transmission between the proxy device and the terminal device is secure, the proxy device also needs to obtain the key corresponding to the second user identification so that secure transmission with the terminal device can be achieved, that is, in The data transmitted on the UDP local transmission channel is encrypted data based on the key corresponding to the second user ID.
  • FIG. 3 is a flow chart of another traffic proxy method according to an exemplary embodiment. As shown in Figure 3, the traffic proxy method according to the embodiment of the present disclosure is executed by a proxy device. The method may include the following steps:
  • step S301 in this embodiment please refer to the relevant content recorded in the above embodiment, and will not be described again here.
  • the proxy device periodically broadcasts the detection request frame to the terminal device, where the detection request frame is used by the proxy device to discover the terminal device under the same user name in the local area network and prepare for the establishment of the UDP local transmission channel.
  • a user identification is the UID (User Identity, User Identification Code) of the user account to which the proxy device belongs
  • the first address information is the source IP (Internet Protocol, IP address) information of the detection request frame sent by the proxy device.
  • the UID of the probe request frame has a byte length of 8.
  • broadcast refers to one-to-many information exchange.
  • one-to-one information exchange is unicast.
  • This disclosure does not place too many restrictions on the specific form of periodic broadcast by the agent device, and it can be carried out according to the actual situation. set up.
  • the proxy device can set 1 minute or 5 seconds as a cycle, and send a detection request frame to the terminal device once the set cycle is reached to meet the requirement of scheduled broadcast.
  • Figure 4 is a schematic diagram of the interaction between the terminal device and the proxy device in the traffic proxy mode.
  • the probe request frame is probe_request
  • the probe response frame is probe_response.
  • the proxy device and the terminal device are initializing, connecting to the cloud server, and After the server establishes the TCP connection channel, the proxy device sends the probe request frame probe_request to the terminal device in the form of a broadcast.
  • initialization means initializing the parameters of the device and restoring the default state of the device.
  • the terminal device parses the UID field in the detection request frame. If the UID of the proxy device is the same as the UID of the terminal device itself, that is, both belong to the same user account, then the terminal device Record the source IP information of the UDP message of the received detection request frame, and return the detection response frame to the proxy device.
  • the terminal device determines that the first user identity and the second user identity are the same.
  • the second user identification is the UID of the user account to which the terminal device belongs
  • the second address information is the source IP information of the detection response frame sent by the terminal device.
  • the proxy device parses the UID field in the detection response frame returned by the terminal device. After confirming that the UID of the proxy device is the same as the UID of the terminal device itself, the proxy device The device records the source IP of the UDP message of the received detection response frame and the unique DID (Device Identity, device identification code) of the terminal device.
  • the DID of the probe request frame can be all 0xFF, and the byte length of the DID is 8.
  • the proxy device can determine the validity of the data frame or detection response frame returned by the terminal device and process it accordingly.
  • the proxy device responds to receiving the data frame or the probe response frame, extracts a timestamp from the data frame or the probe response frame, and obtains a time difference based on the timestamp and the current time, in response to the time difference being less than or equal to the window time. , determine the data frame or detection response frame as a valid frame, process or transmit the valid frame; in response to the time difference being greater than the window time, determine the data frame or detection response frame as an invalid frame, and discard the invalid frame. It is not difficult to see that only when the time difference is less than or equal to the window time, the data frame or detection response frame sent by the terminal device received by the proxy device is valid.
  • timestamps are used to deduplicate messages and prevent replay attacks.
  • the timestamp (timestamp, ts for short) can be an international standard UNIX timestamp, and the byte length of the timestamp is 4.
  • S304 Perform a UDP link establishment process with the terminal device based on the first address information and the second address information to establish a UDP local transmission channel.
  • the proxy device can perform a link establishment process with the terminal device based on the first address information in step S302 and the second address information in step S303, thereby establishing a UDP local transmission channel.
  • the proxy device and the terminal device After a round of information exchange between the detection request frame and the detection response frame, the proxy device and the terminal device have obtained each other's address information, that is, the source IP information. Based on the address information of the proxy device and the terminal device, between the proxy device and the terminal device, Establish a UDP local transmission channel between terminal devices.
  • the proxy device After the proxy device successfully obtains the key of the terminal device from the cloud server, it further sends a connection request frame link_request to the terminal device in the form of unicast to request Establish a local transmission channel. After receiving the link_request sent by the proxy device, the terminal device also returns the connection response frame link_response to the proxy device in the form of unicast to express its agreement to establish the local transmission channel to achieve the establishment of the local transmission channel.
  • FIG. 5 is a flow chart of another traffic proxy method according to an exemplary embodiment. As shown in Figure 5, the traffic proxy method according to the embodiment of the present disclosure is executed by a proxy device. The method may include the following steps:
  • steps S501 to 502 in this embodiment please refer to the relevant content records in the above embodiments, and will not be described again here.
  • the terminal device determines that the first user identity and the second user identity are the same.
  • steps S501 to 503 in this embodiment please refer to the relevant content records in the above embodiments, and will not be described again here.
  • S504 Send a key acquisition request to the cloud server based on the device identification and the second user identification.
  • the detection response frame also includes the first device identification of the terminal device.
  • the device identification is the unique DID (Device Identity, device identification code) of the terminal device.
  • the key is provided by the cloud server when the terminal device binds a user account.
  • the proxy device can send a key acquisition request to the cloud server based on the device identification and the second user identification to obtain the key corresponding to the terminal device under the user account. It should be noted that one terminal device has and has only one corresponding key, and different user accounts and/or different terminal devices have different keys.
  • the proxy device can only obtain the key of the terminal device under the same user account name as the terminal device from the cloud server.
  • the proxy device after receiving the key corresponding to the second user ID returned by the cloud server, the proxy device sends a channel establishment request to the terminal device in a unicast manner for requesting to establish a UDP local transmission channel with the terminal device.
  • the proxy device fails to successfully obtain the key of the terminal device corresponding to the second user ID from the cloud server, for example, the proxy device is not connected to the cloud server, the cloud server fails, etc., the proxy device will not send a channel establishment request (link_request ) to the terminal device, so that the UDP local transmission channel cannot be established. Then the terminal device will connect to the cloud server according to the normal startup process, keeping the original connection logic unchanged.
  • link_request channel establishment request
  • S506 Perform a UDP link establishment process with the terminal device based on the first address information and the second address information to establish a UDP local transmission channel.
  • the UDP local transmission channel After the UDP local transmission channel is established, if one of the IP address information in the proxy device and the terminal device is updated, but the UDP local transmission channel between the two is not updated synchronously, the local communication between the proxy device and the terminal device cannot Doing so often results in data loss.
  • the proxy device needs to update and monitor the first address information and the second address information, promptly discover whether the address information has been updated, and reconstruct the UDP local communication path as soon as possible, which can make data transmission more secure.
  • the UDP local transmission channel is re-established based on the updated address information, that is, the link establishment process of the UDP local transmission channel is re-executed.
  • the proxy device after establishing a UDP local transmission channel, the proxy device regularly interacts with the terminal device with detection request frames and detection response frames.
  • the address information in the proxy device detection request frame is extracted.
  • the obtained address information of the proxy device is compared with the first address information. If the two comparisons are not consistent, it is determined that an address update has occurred on the proxy device.
  • the proxy device extracts the address information in the detection response frame and compares it with the second location information. If the two comparisons are not consistent, it is determined that the address update of the terminal device has occurred. That is to say, when the comparison of the first address information is not consistent and/or the comparison of the second address information is not consistent, it can be determined that the first address and/or the second address information are updated.
  • the UDP local transmission channel is re-established based on the updated address information.
  • the proxy device always sends the probe request frame probe_request regularly in the form of broadcast in the traffic proxy mode.
  • the terminal device that has established a local transmission channel with the proxy device will also send the probe_request in the form of unicast after receiving the probe_request.
  • the probe response frame probe_response is returned in the form.
  • the proxy device and the terminal device maintain each other's IP address through the interaction of probe_request and probe_response. When the IP address of one party changes, the other party can discover and re-establish the local transmission channel in time.
  • FIG. 6 is a flow chart of another traffic proxy method according to an exemplary embodiment. As shown in Figure 6, the traffic proxy method according to the embodiment of the present disclosure is executed by a proxy device. The method may include the following steps:
  • S601 Establish a transmission control protocol TCP connection channel with the cloud server.
  • S602 Establish a User Datagram Protocol UDP local transmission channel with one or more terminal devices in the Internet of Things.
  • S603 In response to receiving the uplink data frame sent by the terminal device through the UDP local transmission channel, send the uplink data frame to the cloud server through the TCP connection channel.
  • the proxy device after the proxy device receives the uplink data frame sent by the terminal device through the UDP local transmission channel, it sends the uplink data frame to the cloud server through the TCP connection channel between the proxy device and the cloud server.
  • the control center agent device or cloud server
  • the message reported to the control center by this device notification is called an uplink message.
  • the uplink message here is encrypted by the terminal device. Upward news. It should be noted that when the terminal device sends an uplink message, it uses the key corresponding to the second user ID to encrypt the uplink message, and then packages the uplink message and sends it to the proxy device through the UDP local transmission channel.
  • the application layer protocol between the proxy device and the cloud server adopts the MQTT over TLS (Transport Layer Secure Message Queuing Telemetry Transmission Standard Protocol) scheme.
  • TLS Transport Layer Secure Message Queuing Telemetry Transmission Standard Protocol
  • the definition of the upstream data frame in this scheme is as follows: device/$ ⁇ DID ⁇ /up/$ ⁇ method ⁇ : Among them, the method is agreed between the cloud server and the agent device.
  • the DID is the agent device
  • the message is the uplink message of the agent device itself.
  • the DID is the terminal device
  • Agents for upstream messages from terminal devices are possible to be agreed between the cloud server and the agent device.
  • the proxy device may determine the key corresponding to the second user identification obtained from the cloud server based on the first device identification, decrypt the encrypted uplink data frame based on the key corresponding to the second user identification, and decrypt the encrypted uplink data frame based on the key corresponding to the second user identification.
  • the agent device's own key encrypts the decrypted uplink message and sends it to the cloud server.
  • the proxy device parses the DID field in the uplink data frame, and uses the key of the corresponding terminal device, that is, the key corresponding to the second user identification, to decrypt the uplink data frame.
  • S604 In response to receiving the downlink data frame sent by the cloud server through the TCP connection channel, send the downlink data frame to the terminal device through the UDP local transmission channel.
  • the proxy device after the proxy device receives the downlink data frame sent by the cloud server through the TCP connection channel, it sends the downlink data frame to the terminal device through the UDP local transmission channel.
  • the control center agents device or cloud server
  • This data frame containing the control instructions is called a downlink data frame.
  • the downlink data here The frame is the downlink data frame encrypted by the cloud server.
  • downlink data frames in the MQTT over TLS solution is as follows: device/$ ⁇ DID ⁇ /down/$ ⁇ method ⁇ : where method is agreed between the cloud server and the proxy device.
  • DID is the proxy device
  • the message is a downlink data frame sent by the cloud server to the proxy device.
  • the message is a downlink data frame of other terminal devices that the proxy device needs to process or forward on its behalf.
  • the proxy device can decrypt the encrypted downlink data frame based on the proxy device's own key, determine the key corresponding to the second user ID obtained from the cloud server based on the first device ID, and determine the key corresponding to the second user ID obtained from the cloud server based on the second user ID.
  • the key corresponding to the identifier encrypts the decrypted downlink data frame and sends it to the terminal device through the UDP local transmission channel.
  • the proxy device establishes a Transmission Control Protocol TCP connection channel with the cloud server, and establishes a User Datagram Protocol UDP local transmission channel with one or more terminal devices in the Internet of Things.
  • the terminal device sends the uplink data frame message through the UDP local transmission channel, and sends the uplink data frame to the cloud server through the TCP connection channel.
  • the downlink data frame sent by the cloud server through the TCP connection channel through the UDP local transmission channel, Send the downlink data frame to the terminal device.
  • the data frames required when the terminal device communicates with the cloud server can be transmitted through the TCP connection channel and the UDP local transmission channel, which can reduce the number of ports used by the cloud server, relieve the TCP connection pressure of the cloud server, and enhance the local The ability to automatically control terminal equipment.
  • the data frame is encrypted and decrypted through the key, which improves the security of the transmission and eliminates the risk of privacy leakage.
  • the UDP local transmission channel is closed.
  • the proxy device when the proxy device does not receive the probe response frame probe_response returned by the terminal device for a certain period of time, the proxy device considers that the terminal device has been lost, and thus closes the corresponding UDP local transmission channel.
  • the first preset duration is set in advance. This disclosure does not limit this too much and can be set according to actual conditions.
  • the first preset time period can be set to one hour, that is, when the proxy device does not receive a detection response frame returned by the terminal device within one hour, the UDP local transmission channel is closed.
  • broadcast a channel disconnection indication where the channel disconnection indication is used to inform the terminal device to close the UDP local transmission channel.
  • the proxy device no longer wants to proxy the data frames of the terminal device, it will exit the proxy mode.
  • the proxy device will Send unlink_notify in the form of broadcast to inform the terminal device to close the UDP local transmission channel.
  • the terminal device parses the DID and UID fields in it.
  • the terminal device will close the UDP local transmission channel and stop sending uplink data frames to the proxy device. At the same time, the terminal device will return to the initial state when it was just started and reconnect to the cloud server.
  • FIG. 8 is a schematic flowchart of a traffic proxy method provided by another embodiment of the present disclosure.
  • the traffic proxy method in the embodiment of the present disclosure is executed by the terminal device.
  • the method may include the following steps:
  • S801 In response to establishing a User Datagram Protocol UDP local transmission channel with the proxy device in the Internet of Things, disconnect the first TCP connection channel with the cloud server.
  • step 801 For a detailed introduction to step 801, please refer to the relevant content recorded in the above embodiments, and will not be described again here.
  • a TCP connection channel exists between the proxy device and the cloud server.
  • the upstream data frames required for communication with the cloud server are transmitted through the UDP local transmission channel, and the proxy device sends the data frames to the cloud server through the TCP connection channel with the cloud server.
  • the terminal device can transmit the uplink data frame to the cloud server through the UDP local transmission channel and the proxy device, and receive the downlink data frame from the cloud server transmitted by the proxy device through the UDP local transmission channel.
  • the terminal device establishes a user datagram protocol UDP local transmission channel with the proxy device in the Internet of Things, disconnects the first TCP connection channel with the cloud server, and transmits the data with the cloud server through the UDP local transmission channel.
  • Data frames required for cloud server communication can be transmitted through the TCP connection channel and the UDP local transmission channel, which can reduce the number of ports used by the cloud server, relieve the TCP connection pressure of the cloud server, and enhance the local The ability to automatically control terminal equipment.
  • the process of establishing a User Datagram Protocol UDP local transmission channel between a terminal device and a proxy device in the same Internet of Things needs to be established based on the address information of both devices. .
  • the terminal device can obtain its own second address information and also needs to obtain the first address information of the proxy device.
  • the UDP link establishment process can be executed to communicate with the proxy device. Establish a UDP local transmission channel between them.
  • the terminal device and the proxy device need to establish a UDP local transmission channel based on having the same user ID or bound account.
  • the terminal device can also obtain the second user ID bound to itself and the first user ID bound to the proxy device. When the two user IDs are consistent, establish a UDP local connection with the proxy device. transmission channel.
  • the terminal device may obtain the first user identification of the proxy device. When the terminal device determines that its second user identification is consistent with the first user identification, it sends the second address information and the second user identification to the proxy device.
  • the proxy device in order to ensure that the data transmission between the proxy device and the terminal device is secure, the proxy device also needs to obtain the key corresponding to the second user identification so that secure transmission with the terminal device can be achieved, that is, in The data transmitted on the UDP local transmission channel is encrypted data based on the key corresponding to the second user ID.
  • the terminal device before the UDP local transmission channel is established, the terminal device can transfer the key corresponding to the second user ID, the second user ID and the first device of the terminal device based on the first TCP long connection with the cloud server.
  • the identity is synchronously sent to the cloud server, so that the proxy device obtains the key bound to the second user identity from the cloud server based on the above information.
  • the terminal device stores the key corresponding to the bound second user identity.
  • the terminal device can encrypt the uplink data frame and send the encrypted uplink data frame to the proxy device through the UDP local transmission channel.
  • the proxy device can obtain the key corresponding to the second user identification from the cloud server, and then can decrypt the encrypted uplink data frame according to the key corresponding to the second user identification. Further, the proxy device encrypts the decrypted uplink data frame based on its own key and sends it to the cloud server.
  • the cloud server can send the downlink data frame to the terminal device through the TCP connection channel with the proxy device.
  • the cloud server can send the downlink data frame to the terminal device through the TCP connection channel with the proxy device.
  • the proxy device sends downlink data frames to the terminal device through the UDP local transmission channel.
  • the cloud server encrypts the downlink data frame through the key corresponding to the proxy device, obtains the encrypted downlink data frame, and sends the encrypted downlink data frame to the proxy device.
  • the proxy device performs encryption based on its own key. Decrypt and obtain the decrypted downlink data frame.
  • the decrypted downlink data frame is encrypted based on the key corresponding to the second user identification bound to the terminal device, and is sent to the terminal device through the UDP local transmission channel.
  • the terminal device receives the encrypted downlink data through the UDP local transmission channel. data frame, and decrypts the encrypted downlink data frame based on the key corresponding to the second user identification bound to the terminal device to obtain the downlink data frame.
  • the terminal device, the proxy device and the cloud server perform corresponding encryption and/or decryption processing on the data frame based on the key corresponding to the second user identification and/or the key of the proxy device itself, thereby improving the efficiency of transmission.
  • Security eliminating the risk of privacy leaks.
  • only the proxy device can obtain the key corresponding to the second user ID from the cloud server, which enhances the control capability of the proxy device and further improves the security of transmission.
  • FIG. 9 is a schematic flowchart of a traffic proxy method provided by another embodiment of the present disclosure. As shown in Figure 9, the traffic proxy method according to the embodiment of the present disclosure may specifically include the following steps:
  • S901 Obtain the detection request frame periodically broadcast by the proxy device.
  • the detection request frame includes the first user identification and first address information corresponding to the proxy device.
  • S902 When it is determined that the first user identification and the second user identification corresponding to the terminal device are consistent, return a detection response frame to the proxy device, where the detection response frame includes the second user identification and the second address information of the terminal device.
  • S903 Based on the first address information and the second address information, perform a UDP link establishment process with the proxy device to establish a UDP local transmission channel.
  • the terminal device uses the first TCP connection channel to transfer the key corresponding to the second user ID, the second user ID and the first device ID of the terminal device. Synchronously sent to the cloud server.
  • the UDP local transmission channel After the UDP local transmission channel is established, if one of the address information in the proxy device and the terminal device is updated, but the UDP local transmission channel between the two is not updated synchronously, the local communication between the proxy device and the terminal device cannot be carried out. , often leading to data loss.
  • the terminal device needs to update and monitor the first address information and the second address information, promptly discover whether the address information has been updated, and reconstruct the UDP local communication path as soon as possible, which can make data transmission more secure.
  • the UDP local transmission channel is re-established based on the updated address information, that is, the link establishment process of the UDP local transmission channel is re-executed.
  • the terminal device after establishing a UDP local transmission channel, the terminal device regularly interacts with the proxy device with detection request frames and detection response frames.
  • the address information in the proxy device detection request frame is extracted.
  • the address information of the proxy device is compared with the first address information. If the two comparisons are not consistent, it is determined that the address update of the proxy device has occurred.
  • the proxy device extracts the address information in the detection response frame and compares it with the second location information. If the two comparisons are not consistent, it is determined that the address update of the terminal device has occurred. That is to say, when the comparison of the first address information is not consistent and/or the comparison of the second address information is not consistent, it can be determined that the first address and/or the second address information are updated.
  • the UDP local transmission channel is re-established based on the updated address information.
  • the UDP local transmission channel is closed, and the first TCP connection channel between the terminal device and the cloud server is re-established.
  • the closing condition of the UDP local transmission channel includes at least one of the following: the terminal device does not receive the detection request frame broadcast by the proxy device within a preset time period; the terminal device receives a channel disconnection indication broadcast by the proxy device.
  • the channel disconnection indication includes a second device identification and a third user identification
  • closing the UDP local transmission channel includes: responding that the second device identification is the first device identification of the terminal device, and the third user identification is The second user ID bound to the terminal device closes the UDP local transmission channel.
  • the terminal device responds to establishing a User Datagram Protocol UDP local transmission channel with the proxy device in the Internet of Things, disconnects the first TCP connection channel with the cloud server, and transmits data to the cloud server through the UDP local transmission channel.
  • Data frames required for communication Therefore, transmitting the data frames required for communication with the cloud server through the UDP local transmission channel can reduce the number of ports used by the cloud server, relieve the pressure on the cloud server for TCP connections, and improve the quality of network service.
  • FIG 10 is a block diagram of a traffic proxy device according to an exemplary embodiment.
  • the traffic proxy device 1000 according to the embodiment of the present disclosure includes a connection module 1001, a first transmission module 1002 and a second transmission module 1003.
  • the connection module 1001 is configured to establish a transmission control protocol TCP connection channel with the cloud server.
  • the first transmission module 1002 is configured to establish a User Datagram Protocol UDP local transmission channel with one or more terminal devices in the same Internet of Things.
  • the second transmission module 1003 is configured to transmit the data frames required when the terminal device communicates with the cloud server through the TCP connection channel and the UDP local transmission channel.
  • the first transmission module 1002 is further configured to: obtain the second address information of the terminal device, and communicate with the terminal device based on the first address information and the second address information of the proxy device itself. UDP link building process to establish UDP local transmission channel.
  • the first transmission module 1002 is further configured to perform: before establishing a UDP local transmission channel with a terminal device, obtain the first device identification of the terminal device and the data bound to the terminal device. the second user identification, and based on the first device identification and the second user identification, obtain the key corresponding to the second user identification from the cloud server.
  • the first transmission module 1002 is further configured to: periodically broadcast a detection request frame, where the detection request frame includes the first user identification and first address information corresponding to the proxy device; receive The detection response frame returned by the terminal device, where the detection response frame includes the second user identification and second address information corresponding to the terminal device; a UDP link establishment process is performed with the terminal device based on the first address information and the second address information to establish UDP local transmission channel.
  • the detection response frame also includes the first device identification of the terminal device
  • the first transmission module 1002 is also configured to perform: sending the key to the cloud server based on the first device identification and the second user identification. Obtain the request; in response to receiving the key corresponding to the second user ID returned by the cloud server, send a channel establishment request to the terminal device in a unicast manner, where the channel establishment request is used to request the establishment of a UDP local transmission channel with the terminal device.
  • the second transmission module 1003 is also configured to perform: in response to receiving the uplink data frame sent by the terminal device through the UDP local transmission channel, send the uplink data frame to the cloud through the TCP connection channel. server.
  • the second transmission module 1003 is also configured to: respond to receiving the downlink data frame sent by the cloud server through the TCP connection channel; send the downlink data frame to the terminal through the UDP local transmission channel equipment.
  • the uplink data frame is an encrypted uplink data frame and includes a first device identification of the terminal device
  • the second transmission module 1003 is further configured to perform: determining from the cloud server based on the first device identification Obtain the key corresponding to the second user ID, and decrypt the encrypted uplink data frame based on the key corresponding to the second user ID; encrypt the decrypted uplink data frame based on the proxy device's own key and send it to the cloud. server.
  • the downlink data frame is an encrypted downlink data frame and includes the first device identification of the terminal device
  • the second transmission module 1003 is also configured to perform: encryption based on the key pair of the proxy device itself Decrypt the downlink data frame; determine the key corresponding to the second user identification obtained from the cloud server based on the first device identification, and encrypt the decrypted downlink data frame based on the key corresponding to the second user identification, and use UDP to The local transmission channel is sent to the terminal device.
  • the traffic proxy device 1000 further includes: an acquisition module configured to perform, in response to receiving a data frame or a probe response frame, extract a timestamp from the data frame or probe response frame, and extract a timestamp based on the time. stamp and the current time to obtain the time difference; the first determination module is configured to determine that the data frame or detection response frame is a valid frame in response to the time difference being less than or equal to the window time, and process or transmit the valid frame; the second determination module, It is configured to respond to a time difference greater than the window time, determine the data frame or detection response frame as an invalid frame, and discard the invalid frame.
  • an acquisition module configured to perform, in response to receiving a data frame or a probe response frame, extract a timestamp from the data frame or probe response frame, and extract a timestamp based on the time. stamp and the current time to obtain the time difference
  • the first determination module is configured to determine that the data frame or detection response frame is a valid frame in response to the time difference being less than or equal to the window time
  • the first transmission module 1002 is configured to regularly interact with the terminal device with detection request frames and detection response frames after establishing the UDP local transmission channel;
  • the update module is configured to update the address information carried by the probe request frame and/or the probe response frame in response to each, and then re-establish the UDP local transmission channel based on the updated address information.
  • the traffic proxy device 1000 further includes: a closing module configured to close the UDP local transmission channel in response to not receiving a detection response frame returned by the terminal device within a first preset time period.
  • the traffic proxy device 1000 further includes: a shutdown module configured to broadcast a channel disconnection indication in response to the proxy device exiting the proxy mode, wherein the channel disconnection indication is used to inform the terminal to close UDP local transmission channel.
  • the traffic proxy device establishes a transmission control protocol TCP connection channel between the proxy device and the cloud server, and establishes a user datagram protocol UDP local transmission channel with one or more terminal devices in the Internet of Things, through the TCP connection channel and UDP local transmission channel to transmit the data frames required when the terminal device communicates with the cloud server.
  • TCP connection channel between the proxy device and the cloud server
  • UDP local transmission channel to transmit the data frames required when the terminal device communicates with the cloud server.
  • FIG 11 is a block diagram of a traffic proxy device according to an exemplary embodiment.
  • the traffic proxy device 1100 in the embodiment of the present disclosure includes a connection module 1101 and a transmission module 1102.
  • the connection module 1101 is configured to perform, in response to establishing a User Datagram Protocol UDP local transmission channel with the proxy device in the Internet of Things, disconnecting the first TCP connection channel with the cloud server.
  • the transmission module 1102 is configured to transmit data frames required for communication with the cloud server through the UDP local transmission channel.
  • the transmission module 1102 is also configured to perform: transmitting and transmitting uplink data frames from the proxy device to the cloud server through the UDP local transmission channel; receiving data from the cloud server transmitted by the proxy device through the UDP local transmission channel. Downstream data frame.
  • connection module 1101 is further configured to: obtain the first user identification and first address information corresponding to the proxy device, and determine when the first user identification and the second user identification corresponding to the terminal device are consistent. , sending the second user identification and the second address information of the terminal device to the proxy device; based on the first address information and the second address information, performing a UDP link establishment process with the proxy device to establish a UDP local transmission channel.
  • connection module 1101 is further configured to: obtain a detection request frame periodically broadcast by the proxy device, where the detection request frame includes the first user identification and first address information corresponding to the proxy device. ; When it is determined that the first user identification and the second user identification corresponding to the terminal device are consistent, return a detection response frame to the proxy device, where the detection response frame includes the second user identification and the second address information of the terminal device; based on the first address information and second address information, and performs the UDP link establishment process with the proxy device to establish a UDP local transmission channel.
  • the traffic proxy device 1100 further includes: a sending module configured to send the password corresponding to the second user ID based on the first TCP connection channel before establishing a UDP local transmission channel with the proxy device.
  • the key, the second user identification and the first device identification of the terminal device are synchronously sent to the cloud server.
  • the transmission module 1102 is also configured to: encrypt the uplink data frame based on the key corresponding to the second user identification bound to the terminal device; and encrypt the encrypted data frame through the UDP local transmission channel. Uplink data frames are sent to the proxy device.
  • the downlink data frame is an encrypted downlink data frame
  • the transmission module 1102 is further configured to perform: receiving the encrypted downlink data frame through the UDP local transmission channel, and based on the third bound data frame of the terminal device.
  • the key corresponding to the two user IDs decrypts the encrypted downlink data frame.
  • the traffic proxy device 1100 further includes: an acquisition module configured to extract a timestamp from the received data frame or probe request frame every time a data frame or probe request frame is received, And based on the timestamp and the current time, obtain the time difference; the first determination module is configured to execute in response to the time difference being less than or equal to the window time, determine that the data frame or the detection request frame is a valid frame, and process the valid frame; the second determination module The module is configured to determine that the data frame or the detection request frame is an invalid frame in response to the time difference being greater than the window time, and discard the invalid frame.
  • the traffic proxy device 1100 also includes: an interaction module configured to regularly interact with the proxy device with detection request frames and detection response frames after establishing a UDP local transmission channel; an update module, It is configured to update the address information carried in the probe request frame and/or the probe response frame in response to the update, and then re-establish the UDP local transmission channel based on the updated address information.
  • the traffic proxy device 1100 also includes: a shutdown module configured to close the UDP local transmission channel in response to the terminal device meeting the closing conditions of the UDP local transmission channel, and establish a connection with the cloud server. channel between the second TCP connection.
  • the closing condition of the UDP local transmission channel includes at least one of the following: the terminal device does not receive the detection request frame broadcast by the proxy device within a preset period of time; receives the channel disconnection indication broadcast by the proxy device .
  • the channel disconnection indication includes a second device identification and a third user identification
  • the shutdown module is further configured to perform: in response to the second device identification being the first device identification of the terminal device, If the third user ID is the second user ID bound to the terminal device, the UDP local transmission channel is closed.
  • the terminal device establishes a user datagram protocol UDP local transmission channel with the proxy device in the Internet of Things, disconnects the first TCP connection channel with the cloud server, and transmits all communication data with the cloud server through the UDP local transmission channel. required data frame.
  • the data frames required for communication with the cloud server are transmitted through the UDP local transmission channel, which reduces the pressure on the TCP connection between the terminal device and the cloud server and improves the quality of network service.
  • FIG. 12 is a block diagram of an electronic device 1200 according to an exemplary embodiment.
  • the above-mentioned electronic device 1200 includes:
  • the memory 1201 and the processor 1202 are connected to the bus 1203 of different components (including the memory 1201 and the processor 1202).
  • the memory 1201 stores a computer program.
  • the processor 1202 executes the program, the traffic proxy method described above in the embodiment of the present disclosure is implemented.
  • Bus 1203 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, a graphics accelerated port, a processor, or a local bus using any of a variety of bus structures.
  • these architectures include, but are not limited to, the Industry Standard Architecture (ISA) bus, the Micro Channel Architecture (MAC) bus, the Enhanced ISA bus, the Video Electronics Standards Association (VESA) local bus, and the Peripheral Component Interconnect ( PCI) bus.
  • ISA Industry Standard Architecture
  • MAC Micro Channel Architecture
  • VESA Video Electronics Standards Association
  • PCI Peripheral Component Interconnect
  • Electronic device 1200 typically includes a variety of electronic device-readable media. These media can be any available media that can be accessed by electronic device 1200, including volatile and nonvolatile media, removable and non-removable media.
  • Memory 1201 may also include computer system-readable media in the form of volatile memory, such as random access memory (RAM) 1204 and/or cache memory 1205 .
  • Electronic device 1200 may further include other removable/non-removable, volatile/non-volatile computer system storage media.
  • storage system 1206 may be used to read and write to non-removable, non-volatile magnetic media (not shown in Figure 12, commonly referred to as a "hard drive”).
  • a disk drive for reading and writing removable non-volatile disks (e.g., "floppy disks"), and removable non-volatile optical disks (e.g., CD-ROM, DVD-ROM) may be provided.
  • Memory 1201 may include at least one program product having a set of (eg, at least one) program modules configured to perform the functions of embodiments of the present disclosure.
  • Program modules 1212 generally perform functions and/or methods in the embodiments described in this disclosure.
  • Electronic device 1200 may also communicate with one or more external devices 1209 (e.g., keyboard, pointing device, display 1210, etc.), may also communicate with one or more devices that enable a user to interact with electronic device 1200, and/or with Any device (eg, network card, modem, etc.) that enables the electronic device 1200 to communicate with one or more other computing devices. This communication may occur through an input/output (I/O) interface 1212.
  • the electronic device 1200 may also communicate with one or more networks (eg, a local area network (LAN), a wide area network (WAN), and/or a public network, such as the Internet) through the network adapter 1213.
  • network adapter 1213 communicates with other modules of electronic device 1200 through bus 1203.
  • the processor 1202 executes various functional applications and data processing by running programs stored in the memory 1201 .
  • the electronic device can execute the traffic proxy method as described above, establish a transmission control protocol TCP connection channel with the cloud server, and establish a user datagram protocol UDP local with one or more terminal devices in the Internet of Things.
  • Transmission channel through TCP connection channel and UDP local transmission channel, transmits the data frames required when the terminal device communicates with the cloud server.
  • the data frames required for communication between the terminal device and the cloud server can be transmitted through the TCP connection channel and the UDP local transmission channel, which reduces the pressure on the TCP connection between the terminal device and the cloud server and improves network service quality.
  • the present disclosure also proposes a computer-readable storage medium.
  • the electronic device when the instructions in the computer-readable storage medium are executed by the processor of the electronic device, the electronic device can perform the traffic proxy method as described above.
  • the computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

La présente divulgation concerne des procédés et des appareils de mandataire de trafic, un dispositif électronique et un support de stockage, appartenant au domaine technique de l'Internet des objets. Un procédé consiste à : établir un canal de connexion de protocole de contrôle de transmission (TCP) avec un serveur en nuage ; établir un canal de transmission local de protocole de datagramme utilisateur (UDP) avec un ou plusieurs équipements terminaux dans l'Internet des Objets ; et au moyen du canal de connexion TCP et du canal de transmission local UDP, transmettre des trames de données requises pendant la communication du ou des équipements terminaux avec le serveur en nuage. Par conséquent, au moyen du canal de connexion TCP et du canal de transmission local UDP, les trames de données requises pendant la communication du ou des équipements terminaux avec le serveur en nuage peuvent être transmises, ce qui permet d'obtenir un mandataire pour des trafics du ou des équipements terminaux, de réduire la pression de connexion TCP effectuée entre le ou les équipements terminaux et le serveur en nuage, et d'améliorer la qualité de service de réseau.
PCT/CN2022/084176 2022-03-30 2022-03-30 Procédés et appareils de mandataire de trafic, dispositif électronique et support de stockage WO2023184264A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060256771A1 (en) * 2005-05-12 2006-11-16 Yahoo! Inc. Proxy server for relaying VOIP messages
CN102088460A (zh) * 2010-12-29 2011-06-08 北京新媒传信科技有限公司 受限网络中流媒体数据的传输方法、设备和系统
CN106357772A (zh) * 2016-09-20 2017-01-25 深圳市赛格导航科技股份有限公司 一种车载无线通讯系统及方法
CN113810349A (zh) * 2020-06-17 2021-12-17 腾讯科技（深圳）有限公司 数据传输方法、装置和计算机设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104566783A (zh) * 2014-12-05 2015-04-29 广东志高空调有限公司 一种空调控制方法及系统
US20180288179A1 (en) * 2017-04-03 2018-10-04 Randeep S. Bhatia Proxy for serving internet-of-things (iot) devices
CN110719248B (zh) * 2018-07-12 2021-08-17 中移（杭州）信息技术有限公司 用户数据报协议报文的转发方法及装置
CN109495258B (zh) * 2018-12-19 2022-05-13 天翼数字生活科技有限公司 监控数据解密的方法、装置、计算机设备及存储介质
CN112243002B (zh) * 2020-10-10 2023-07-04 腾讯科技（深圳）有限公司 数据转发方法、装置、电子设备以及计算机可读介质
CN112637344A (zh) * 2020-12-23 2021-04-09 苏州三六零智能安全科技有限公司 物联网设备的监控方法、设备、装置以及存储介质
CN114244886B (zh) * 2021-11-22 2024-04-30 北京小米移动软件有限公司 设备控制方法、设备控制装置及存储介质

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060256771A1 (en) * 2005-05-12 2006-11-16 Yahoo! Inc. Proxy server for relaying VOIP messages
CN102088460A (zh) * 2010-12-29 2011-06-08 北京新媒传信科技有限公司 受限网络中流媒体数据的传输方法、设备和系统
CN106357772A (zh) * 2016-09-20 2017-01-25 深圳市赛格导航科技股份有限公司 一种车载无线通讯系统及方法
CN113810349A (zh) * 2020-06-17 2021-12-17 腾讯科技（深圳）有限公司 数据传输方法、装置和计算机设备

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