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SAE J2735-Draft-Rev15 [issued: 01-30-07]
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141 -
This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
9.2 Data Element: DE_DDuration
Use: The DSRC style Duration element is a simple value consisting of the number of milliseconds from some
known starting time. A 3 byte value.
ASN.1 Representation:
DDuration ::= INTEGER (0..1200000) -- up to 20 minutes of elapssed time
XML Representation:
<xs:simpleType name="DDuration" >
<xs:annotation>
<xs:documentation>
up to 20 minutes of elapssed time
</xs:documentation>
</xs:annotation>
<xs:restriction base="xs:unsignedInt">
<xs:maxInclusive value="1200000"/>
</xs:restriction>
</xs:simpleType>
9.3 Data Element: DE_DOffset
Use: The DSRC style (time zone) offset is a simple value consisting of a signed integer representing an hour and
minute value set from -14:00 to +14:00 representing all the worlds local time zones in units of minutes. The value
of zero (00:00) may represent an unknown value. Note some time zones are do not align to hourly boundaries.
ASN.1 Representation:
DOffset ::= INTEGER (-340..340) -- units of minutes from UTC time
XML Representation:
<xs:simpleType name="DOffset" >
<xs:annotation>
<xs:documentation>
units of minutes from UTC time
</xs:documentation>
</xs:annotation>
<xs:restriction base="xs:short">
<xs:minInclusive value="-340"/>
<xs:maxInclusive value="340"/>
</xs:restriction>
</xs:simpleType>
9.4 Data Element: DE_MessageType
Use: The basic type of message that follows. This value describes not only the specific message type but the
implicitly defined encoding of the bytes that follow in the message.
ASN.1 Representation:
MessageType ::= ENUMERATED {
-- Safety System messages
item_1 (0), -- Basic
-- Safety Vehicle messages
item_2 (1), -- Basic
item_3 (2), -- Common
item_4 (3), -- Connect
item_5 (4), -- Identify
item_6 (5), -- Notice
item_7 (6), -- Synchronize
item_8 (7), --
item_9 (8), --
item_10 (9), --
item_11 (10), --
item_12 (11), --
item_13 (12), --