Page 30 - Traffic Infra Tech Magazine

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location. Some vehicle makers and
mapping service providers are starting
to use such information to identify
roadway hazards such as potholes.
From a vehicle manufacturer’s
perspective, one cannot rely on
universal cellular coverage. As a
result, applications need to be
designed to operate on the premise
that connectivity may or may not
be available and therefore vehicle
systems need to include the ability to
store critical data locally, transmitting
valuable information when connectivity
Sensor type Quantity Data generated per sensor is restored.
Radar 04-Jun 0.1-15 Mbit/s Data volume today
LIDAR 01-May 20-100 Mbit/s A study performed by ADAC in 2016
Camera 06-Dec 500-3500 Mbit/s identified that the BMW i3 electric
vehicle transmits the ‘Last State Call’
Ultrasonic Aug-16 <0.01 Mbit/s
automatically every time the driver
Vehicle motion, GNSS, — <0.1 Mbit/s switches off the car and locks the
IMU doors (vehicle is not in motion). This
call includes the content of the error
memory, battery details including
cell temperatures and charge level,
the driving mode (eco, eco plus,
sport), operational data of the range
extender, the mileage at various driving
operations, quality of the charging
point including malfunctions and the
position of the last 16 charging points
used.
Key to note in the BMW case is that
some information is obtained while
the vehicle is in motion, with other
information being collected at the end
of the journey. Information provided
by OEM A (a Japanese auto- maker)
indicates that their personal light
vehicles generate a report of ~10-
15MB per duty-cycle. How does this
compare to the typical smartphone
users? According to a 2018 report,

30 April - May ’19 / TrafficInfraTech www.trafficinfratech-com-500653.hostingersite.com