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SAE J2735-Draft-Rev29 [issued: 12-11-08]
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This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
<xs:element name="secMark" type="DSecond" minOccurs="0"/>
<xs:element name="vmt" type="VehicleMotionTrail" />
<!-- a set of recent Bread Crumbs
might want to pick which one
patern to use in above -->
<xs:element name="intersetionID" type="IntersectionID" />
<!-- the applicable Intersection, from the MAP-GID
the best applicable movement, from the MAP-GID -->
<xs:element name="laneNumber" type="LaneNumber" />
<!-- the best applicable Lane, from the MAP-SPAT-GID
zero sent if unknown -->
<xs:element name="eventFlag" type="EventFlags" />
<!-- used to convey vehicle Panic Events,
Set to indicate "Intersection Violation" -->
<xs:element name="localIntersectionCollision" type="local:IntersectionCollision"
minOccurs="0"/>
</xs:sequence>
</xs:complexType>
Remarks: Note: This message can become superfluous given that the same information can also be sent in
the BSM (in part II) or in the alaCarte messages. An issue for further committee discussion.
5.6 Message: MSG_NMEA_Corrections
Use: The NMEA_Corrections message is used to encapsulate NMEA 183 style differential corrections for
GPS radio navigation signals as defined by the NMEA (National Marine Electronics Association)
committee in its Protocol 0183 standard. Here, in the work of DSRC, these messages are "wrapped" for
transport on the DSRC media, and then can be re-constructed back into the final expected formats defined
by the NMEA standard and used directly by GPS positioning systems to increase the absolute and relative
accuracy estimates produced.
ASN.1 Representation:
NMEA-Corrections ::= SEQUENCE {
msgID DSRCmsgID,
-- the specific edition of the standard
-- that is being sent, normally 2.0
-- the message and sub-message type, as
-- defined in the revision being used
-- NOTE as the message type is also in the payload,
wdCount INTEGER (0..1023),
-- a count of bytes to follow
...
}
XML Representation:
<xs:element name="nMEA-Corrections" type="NMEA-Corrections"/>
<xs:complexType name="NMEA-Corrections" >
<xs:sequence>
<xs:element name="msgID" type="DSRCmsgID" />
<!-- the specific edition of the standard
that is being sent, normally 2.0 -->
<!-- the message and sub-message type, as
defined in the revision being used
NOTE as the message type is also in the payload, -->
<xs:element name="wdCount" >
<xs:simpleType>
<xs:restriction base="xs:unsignedShort">
<xs:maxInclusive value="1023"/>
</xs:restriction>
</xs:simpleType>
</xs:element>