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arXiv 2409.05904cs.NIcs.SYeess.SY
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车载网络中集成数据分发服务与时间敏感网络的一种基于集中式发现的方法

A Centralized Discovery-Based Method for Integrating Data Distribution Service and Time-Sensitive Networking in In-Vehicle Networks

Feng Luo, Yi Ren, Yanhua Yu, Yunpeng Li, Zitong Wang

AI总结:

针对车载网络中 DDS 与 TSN 集成部署不足的问题,提出基于集中式发现的 DoT 架构,结合轻量级 FastDDS-lw 与 DFIA 自动识别流,降低关键业务时延抖动并实现数十毫秒级自动配置。

摘要:

随着智能网联汽车(ICV)电子电气架构(E/EA)的演进,传统的分布式、面向信号的架构正被集中式、面向服务的架构(SOA)所取代。新一代 E/EA 要求车载网络(IVN)具备高带宽、实时性、可靠性和面向服务的能力。数据分发服务(DDS)和时间敏感网络(TSN)正越来越多地被采用以满足这些需求。然而,在汽车应用中对 DDS 与 TSN 进行集成部署的研究仍处于起步阶段。本文提出一种基于集中式发现架构(CDA)的 DDS over TSN(DoT)通信架构。首先,面向资源受限的车载设备开发了轻量级 DDS 实现 FastDDS-lw。其次,提出一种基于 CDA 的 DDS 流识别算法(DFIA),用于在发现阶段自动识别潜在的 DDS 流。最后,设计了融合 FastDDS-lw 和 DFIA 的 DoT 通信架构。实验结果表明,与传统以太网相比,DoT 架构显著降低了关键 DDS 流的端到端时延和抖动。此外,DoT 还提供了一种可在几十毫秒内完成的自动化网络配置方法。

英文摘要:

As the electronic and electrical architecture (E/EA) of intelligent and connected vehicles (ICVs) evolves, traditional distributed and signal-oriented architectures are being replaced by centralized, service-oriented architectures (SOA). This new generation of E/EA demands in-vehicle networks (IVNs) that offer high bandwidth, real-time, reliability, and service-oriented. data distribution service (DDS) and time-sensitive networking (TSN) are increasingly adopted to address these requirements. However, research on the integrated deployment of DDS and TSN in automotive applications is still in its infancy. This paper presents a DDS over TSN (DoT) communication architecture based on the centralized discovery architecture (CDA). First, a lightweight DDS implementation (FastDDS-lw) is developed for resource-constrained in-vehicle devices. Next, a DDS flow identification algorithm (DFIA) based on the CDA is introduced to identify potential DDS flows during the discovery phase automatically. Finally, the DoT communication architecture is designed, incorporating FastDDS-lw and DFIA. Experimental results show that the DoT architecture significantly reduces end-to-end latency and jitter for critical DDS flows compared to traditional Ethernet. Additionally, DoT provides an automated network configuration method that completes within a few tens of milliseconds.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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