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SAE J2735-Draft-Rev28 [issued: 11-10-08]
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This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
</xs:restriction>
</xs:simpleType>
Used By: This entry is used directly by one other data structure in this standard, a DF called
DF_BumperHeights <ASN> <XML>. In addition, this item may be used by data structures in other
ITS standards.
7.24 Data Element: DE_CodeWord
Use: The DE_CodeWord is used to convey a prior known string of bytes between systems, typically to
establish trust or validity of the message request in which it is found. The use and setting of these words, as
well as any policy regarding changing the value over time, is up to the participants.
ASN.1 Representation:
CodeWord ::= OCTET STRING (SIZE(1..16))
-- any octect string up to 16 bytes
XML Representation:
<xs:simpleContent>
<xs:annotation>
<xs:documentation>
any octect string up to 16 bytes
</xs:documentation>
</xs:annotation>
<xs:extension base="CodeWord-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="CodeWord-string">
<xs:restriction base="xs:base64Binary">
<xs:minLength value="2"/>
<xs:maxLength value="22"/>
</xs:restriction>
</xs:simpleType >
Used By: This entry is used directly by one other data structure in this standard, a DF called
DF_SignalRequest <ASN> <XML>. In addition, this item may be used by data structures in other ITS
standards.
7.25 Data Element: DE_CoefficientOfFriction
Use: Coefficient of Friction of an object, typical a wheel in contact with the ground. This DE is typically
used in sets where the value of each wheel is provided in turn as a measure of relative local traction.
ASN.1 Representation:
CoefficientOfFriction ::= INTEGER (0..50) -- re-confirm this range
-- where 0 = 0.00 micro (frictonless)
-- and 50 = 0.98 micro, in steps of 0.02
XML Representation:
<xs:simpleType name="CoefficientOfFriction" >
<xs:annotation>
<xs:documentation>
re-confirm this range
where 0 = 0.00 micro (frictonless)
and 50 = 0.98 micro, in steps of 0.02
</xs:documentation>