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SAE J2735-Draft-Rev29 [issued: 12-11-08]
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104 -
This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
Remarks: The delta units used in the latOffset and Long offset are 1/8th micro degrees from the
anchor point given by the full position vector. The delta units used in the zOffset are 0.1 meters
from the elevation of the full position vector. The delta units of time used in the time offset are
0.1 mSec. The delta units used in the heading are units of 002136 deg. The delta units used in
the speed are units of 0.05 m/Sec.
7.20 Data Element: DE_BreadCrumbVersion-9
Use: The BreadCrumbVersion-9 data element one of a set of related items to carry breadcrumb data
(typically vehicle trials). In use, sequences of this data set are sent (one per crumb), typically combined
into a single final octet string.
ASN.1 Representation:
BreadCrumbVersion-9 ::= OCTET STRING (SIZE(8))
-- To be made up of packed bytes as follows:
-- longOffset INTEGER (-32767..32767)
-- latOffset INTEGER (-32767..32767)
-- accuracy PositionalAccuracy
XML Representation:
<xs:complexType name="BreadCrumbVersion-9" >
<xs:simpleContent>
<xs:annotation>
<xs:documentation>
To be made up of packed bytes as follows:
longOffset INTEGER (-32767..32767)
latOffset INTEGER (-32767..32767)
accuracy PositionalAccuracy
</xs:documentation>
</xs:annotation>
<xs:extension base="BreadCrumbVersion-9-string" >
<xs:attribute name="EncodingType" use="required">
<xs:simpleType>
<xs:restriction base="xs:NMTOKEN">
<xs:enumeration value="base64Binary"/>
</xs:restriction>
</xs:simpleType>
</xs:attribute>
</xs:extension>
</xs:simpleContent>
</xs:complexType>
<xs:simpleType name="BreadCrumbVersion-9-string">
<xs:restriction base="xs:base64Binary">
<xs:length value="11"/>
</xs:restriction>
</xs:simpleType >
Used By: This entry is used directly by one other data structure in this standard, a DF called
DF_VehicleMotionTrail <ASN> <XML>. In addition, this item may be used by data structures in
other ITS standards.
Remarks: the delta units used in the latOffset and Long offset are 1/8th micro degrees from the
anchor point given by the full position vector. The delta units used in the zOffset are 0.1 meters
from the elevation of the full position vector. The delta units of time used in the time offset are
0.1 mSec. The delta units used in the heading are units of 002136 deg. The delta units used in
the speed are units of 0.05 m/Sec.
7.21 Data Element: DE_BumperHeightFront
Use: The DE_Bumper Height Front data element conveys the height of the front bumper of the vehicle.
In cases of vehicles with complex bumper shapes, the center of the mass of the bumper (where the bumper
can best absorb an impact) should be used.