一种数据传输方法及相关装置

By using a daisy-chain topology and a frame-based data transmission mechanism, the problems of high cabling difficulty and insufficient system stability in multi-device connections are solved, achieving efficient bidirectional data transmission, reducing cabling costs and weight, and improving system flexibility and stability.

CN120785674BActive Publication Date: 2026-07-17SHENZHEN LONTIUM SEMICON TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN LONTIUM SEMICON TECH CO LTD
Filing Date
2025-07-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In multi-device connection scenarios, existing technologies face challenges in wiring between devices, resulting in high costs, system stability, and flexibility. This is especially true in in-vehicle multimedia systems, where the number of devices increases linearly, leading to a rise in the number and weight of connecting cables. Furthermore, communication between device nodes is highly dependent on the control node, which can easily cause line conflicts and system paralysis.

Method used

A daisy-chain topology is used to connect multiple nodes through a single bus. The bus transmits data in frames, which contain downlink and uplink subframes. Nodes process data autonomously by transmitting configuration information, reducing the amount of wiring and enabling bidirectional data transmission within each frame. Nodes can operate normally without processor intervention.

Benefits of technology

It effectively reduces the number and cost of wiring between devices, improves data transmission efficiency, enhances system flexibility and stability, reduces system weight, and maintains normal system operation without processor intervention.

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Abstract

本申请公开一种数据传输方法及相关装置,方法包括:主节点向总线发送当前帧的下行同步帧,并基于传输配置信息对当前帧的下行子帧进行处理;多个从节点响应于当前帧的下行同步帧,从总线上接收当前帧的下行子帧,并基于传输配置信息对当前帧的下行子帧进行处理;多个从节点中的第一从节点向总线发送当前帧的上行同步帧,并基于传输配置信息对当前帧的上行子帧进行处理,第一从节点为总线的下行方向上的最后一个节点;多个节点中除第一从节点之外的其他节点响应于当前帧的上行同步帧,从总线上接收当前帧的上行子帧,并基于传输配置信息对当前帧的上行子帧进行处理。这样可以减少数据传输系统的布线数量与难度,实现系统的双向数据传输。
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