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SAE J2735-Draft-Rev18 [issued: 06-26-07]
-
87 -
This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
MSG
<XML>, and
DF
In addition, this item may be used by data structures in other ITS standards.
Remarks: Note that one byte heading data elements are found in other parts of ITS.
7.25 Data Element: DE_IntersectionID
Use: The IntersectionID is used to globally and uniquely define an intersection within a country or region
in a 32 bit field. Need some words about using the upper bytes with some common sense here.
ASN.1 Representation:
IntersectionID ::= INTEGER (0..4294967295)
-- note that often only the lower 16 bits of this value
-- wil be send as the operational region (state etc) will
XML Representation:
<xs:simpleType name="IntersectionID" >
<xs:annotation>
<xs:documentation>
note that often only the lower 16 bits of this value
wil be send as the operational region (state etc) will
be known and not sent each time
</xs:documentation>
</xs:annotation>
<xs:restriction base="xs:unsignedInt"/>
</xs:simpleType>
Used by: This entry is directly used by the following 2 other data structures in this standard (record type,
descriptive name, ASN.1, and XML name (if present) of each):
DF
<XML>, and
MSG
In addition, this item may be used by data structures in other ITS standards.
7.26 Data Element: DE_J1939-71-Axle Location
Use: Encoded as: Low order 4 bits represent a position number, counting left to right when facing
the direction of normal vehicle travel. The high order 4 bits represent a position number, counting
front to back on the vehicle. 256 states/8 bit, 0 offset, Range: 0-255
ASN.1 Representation:
AxleLocation ::= INTEGER (0..255)
XML Representation:
<xs:simpleType name="AxleLocation" >
<xs:restriction base="xs:unsignedByte"/>
</xs:simpleType>
Used by: This entry is used directly by one other data structure in this standard, a DF called DF_J1939-71-
standards.
7.27 Data Element: DE_J1939-71-Axle Weight
Use: Encoded as: 0.5kg/bit, 0deg offset Range: 0 - 32,127.5kg