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SAE J2735-Draft-Rev15 [issued: 01-30-07]
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This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
}
XML Representation:
<xs:complexType name="DTime" >
<xs:sequence>
</xs:sequence>
</xs:complexType>
Used by: This entry is used directly by one other data structure in this standard, a DF called DF_ValueList <ASN>
<XML>. In addition, this item may be used by data structures in other ITS standards.
9.12 Data Frame: DF_DYearMonth
Use: The DSRC style year-month is a compound value consisting of finite-length sequences of integers (not
characters) of the form: "yyyy, mm" - as defined below. Because the length of each element is known, no inner
element tagging is normally used in transmission. Thus, this data frame occupies 3 bytes in total.
ASN.1 Representation:
DYearMonth ::= SEQUENCE {
year DYear, -- 2 bytes
month DMonth, -- 1 byte
}
XML Representation:
<xs:complexType name="DYearMonth" >
<xs:sequence>
<xs:element name="year" type="DYear" />
<!-- 2 bytes -->
<xs:element name="month" type="DMonth" />
<!-- 1 byte -->
</xs:sequence>
</xs:complexType>
Used by: This entry is used directly by one other data structure in this standard, a DF called DF_ValueList <ASN>
<XML>. In addition, this item may be used by data structures in other ITS standards.
9.13 Data Frame: DF_PositionShort
Use: The localized position of the vehicle (with the upper 16 bits for each of lat and long not sent because they are
know by both parties). This results in two 16 bit values for the "short" lat-long which scale directly from the
standard ITS 32 bit value representation with the LSB as one micro degree.
ASN.1 Representation:
PositionShort ::= SEQUENCE {
lat ShortLatitude,
long ShortLongitude
}
XML Representation:
<xs:complexType name="PositionShort" >
<xs:sequence>
<xs:element name="lat" type="ShortLatitude" />
<xs:element name="long" type="ShortLongitude" />
</xs:sequence>
</xs:complexType>
In addition, this item may be used by data structures in other ITS standards.
10. CONFORMANCE
Since this SAE Standard specifies standard message sets, data frames and data elements for use by applications
intended to utilize the DSRC communications systems, an application will be judged to be in conformance with