数据总线薄传输层

[中文适用范围]： 本 SAE 推荐实践详细介绍了智能交通系统 (ITS) 数据总线的精简传输层，该总线通常供车载使用。 [外文原描述]： This SAE Recommended Practice details the Thin Transport Layer of the Intelligent Transportation Systems (ITS) Data Bus, which is generally intended for in-vehicle use.The Thin Transport Layer sits between SAE J2366-2 and J2366-7. It provides the handling of such activities as the packetizing of long messages and message reassembly. Design of the messages and headers has stressed economy, in terms of bits within a CAN 2.0B frame.The ITS Data Bus (IDB) is a non-proprietary virtual token passing bus, designed to allow disparate consumer, vehicle, and commercial electronic components to communicate and share information across a standard, open data bus.This document describes the Thin Transport Layer of the IDB, as shown in Figure 1 .Cross Reference: Bosch CAN Specification, Version 2.0,BoschCANSpecifi,ISO7498:1990,J1760_201910,J2355,J2366-1,J2366-2,J2366-7,J2366/1,J2366/2,J2366/7,J2590