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SAE J2735-Draft-Rev28 [issued: 11-10-08]
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192 -
This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
LSB units of 0.02 degrees.
a range of 655.36 degrees each way
(1.82 full rotations in either direction)
</xs:documentation>
</xs:annotation>
<xs:restriction base="xs:int">
<xs:minInclusive value="-32767"/>
<xs:maxInclusive value="32768"/>
</xs:restriction>
</xs:simpleType>
Used By: This entry is used directly by one other data structure in this standard, a DF called
DF_VehicleStatus <ASN> <XML>. In addition, this item may be used by data structures in other ITS
standards.
7.128 Data Element: DE_SunSensor
Use: The "Sun Sensor" Probe Data Element is intended to inform Probe Data Users as to the level of Sun
Light in the area the vehicle was traveling at the time the Probe Data snapshot was taken. The value of the
Sun Sensor data element ranges from 0-7, with 0 indicating "Complete Darkness", 1 indicating "Minimal
Sun Light", and 7 indicating "Maximum Sun Light". This information could be sent to vehicles
approaching the area to tell drives to be prepared for sunny/clouding conditions ahead or a Weather Server
for monitoring weather conditions in the area.
ASN.1 Representation:
SunSensor ::= INTEGER (0..1000) -- units of watts / m2
-- Note that units are still TBD,
-- perhasps a log scale is wanted here
XML Representation:
<xs:annotation>
<xs:documentation>
units of watts / m2
Note that units are still TBD,
perhasps a log scale is wanted here
</xs:documentation>
</xs:annotation>
<xs:restriction base="xs:unsignedShort">
<xs:maxInclusive value="1000"/>
</xs:restriction>
</xs:simpleType>
Used By: This entry is used directly by one other data structure in this standard, a DF called
DF_VehicleStatus <ASN> <XML>. In addition, this item may be used by data structures in other ITS
standards.
Remarks: It is recommended that Automotive Manufacturers divide the range of their Sun Sensors into 8
resistance ranges corresponding to the above scale. For Example: a sensor that has a resistance range from
12K Ohms (No Light) to 250 Ohms (Max Light) will have the following resistance value ranges:
# 0= 10501 to 12000 Ohms
# 1=9250 to 10749 Ohms
# 2=7750 to 9249 Ohms
# 3=6250 to 7749 Ohms
# 4=4750 to 6249 Ohms
# 5=3250 to 4749 Ohms
# 6=1750 to 3249 Ohms