Cross-protocol domain data interaction method, vehicle-mounted network system and vehicle

By mapping the original protocol frames to VPU data in a unified payload format and performing scheduling processing, the problems of complex protocol conversion logic and poor scalability in vehicular networks are solved, achieving efficient cross-protocol domain data interaction and improving the performance and reliability of vehicular communication systems.

CN122027707BActive Publication Date: 2026-07-03CHONGQING LANDIAN AUTOMOBILE TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-04-13
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing in-vehicle multi-protocol gateway solutions suffer from poor scalability, lack of unified data representation, rigid routing strategies, inability to uniformly guarantee the quality of cross-domain data transmission, and linear increase in conversion latency with load, making it difficult to meet the real-time requirements of safety-critical services such as ADAS.

Method used

By mapping the original protocol frame to VPU data in a unified payload format, encapsulating it to form a VDU frame, and performing scheduling processing based on the VDU frame, the data is output to the destination port after determining the timing of transmission. After decapsulation, the data is recapsulated according to the target protocol, thus achieving efficient interoperability of data across protocol domains.

Benefits of technology

It simplifies the cross-protocol domain data interaction process, enables accurate and orderly forwarding of data of different protocol types, and improves the performance and reliability of the vehicle communication system.

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Patent Text Reader

Abstract

The application provides a cross-protocol domain data interaction method, a vehicle-mounted network system and a vehicle, relates to the technical field of vehicle-mounted communication, and comprises the following steps: obtaining an original protocol frame from any functional domain in a plurality of functional domains of a vehicle-mounted network system; mapping the original protocol frame from an original vehicle-mounted protocol to a unified payload format to obtain VPU data; encapsulating information of a corresponding destination port of the original protocol frame and the VPU data to obtain a corresponding VDU frame; scheduling based on the VDU frame to obtain a to-be-sent occasion of the VDU frame, and outputting the VDU frame to the destination port when the to-be-sent occasion arrives; unpackaging the VDU frame output from the destination port to obtain original data; encapsulating the original data according to a target vehicle-mounted protocol of a target functional domain where the destination port is located to obtain a target protocol frame of the target vehicle-mounted protocol, so that the target functional domain processes based on the target protocol frame. The application can improve the flexibility of vehicle-mounted data interaction.
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Citation Information

Patent Citations

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  • Vehicle-mounted cross-protocol data time sequence cooperative processing method

    CN121643968A