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原文传递 Vehicle Information Exchange Needs for Mobility Applications Exchange: Version 2.0.

题名：	Vehicle Information Exchange Needs for Mobility Applications Exchange: Version 2.0.
作者：	M. McGurrin;
关键词：	basic safety message(bsm), mobility applications, connected vehicles
摘要：	This white paper presents the results of a preliminary assessment of the information that needs to flow to and from vehicles in order to support thirty high priority applications identified by the Dynamic Mobility Applications (DMA) and connected vehicle road weather programs and the extent to which the Basic Safety Message (BSM) can support those needs. The concepts of operation and system requirements for these applications are still under development. As a result, the findings will undoubtedly change as more information becomes available. This document will be periodically updated through mid-2013. Connected Vehicle to Vehicle (V2V) safety applications heavily rely on the BSM, which is one of the messages defined in the Society of Automotive standard J2735, Dedicated Short Range Communications (DSRC) Message Set Dictionary, November 2009. The BSM is broadcast from vehicles over the 5.9 GHz DSRC band. Transmission range is on the order of 1 kilometer. The BSM consists of two parts: BSM Part 1: Contains core data elements, including vehicle position, heading, speed, acceleration, steering wheel angle, and vehicle size It is transmitted at an adjustable rate of about 10 times per second BSM Part 2: Contains a variable set of data elements drawn from an extensive list of optional elements. They are selected based on event triggers, e.g., ABS activated They are added to Part 1 and sent as part of the BSM message, but are transmitted less frequently in order to conserve bandwidth The BSM message includes only current snapshots (with the exception of path data which is itself limited to a few seconds worth of past history data).
总页数：	53p
报告类型：	科技报告