Transcript Future Communications Systems for Foresighted Driving University of Applied Sciences (HTW)

Future Communications Systems
for Foresighted Driving
University of Applied Sciences (HTW)
Research and Development in the Automotive Sector
Prof. Dr.-Ing. Horst Wieker
Prof. Dr.-Ing. Horst Wieker
HTW
Goebenstraße 40
D-66117 Saarbrücken
Phone: (+49)681/5867-195
Mail: [email protected]
Prof. Dr.-Ing. Wolfram Seibert
HTW
Goebenstraße 40
D-66117 Saarbrücken
Phone: (+49)681/5867-264
Mail: [email protected]
About Us
Department of Telecommunications
Department of Automotive Engineering
Prof. Dr.-Ing. Horst Wieker
Prof. Dr.-Ing. Wolfram Seibert
Aggregation of competence on vehicle engineering &
telecommunication systems
Vehicle-to-Vehicle Communication Projects
Source: Prof.Dr.-Ing.habil. Raymond Freymann (BMW) – Connectivity and Safety
Motivation: Accident Statistics
Road accidents in 2003
Cause of accidents
resulting in injuries 1)
86.1
1
2.2
5.6
86.1
Other
16.0
3.9
6.2
11.1
Caused by pedestrians
Under influence of alcohol
5.1
22.8
Driver 2)
Vehicle 2) 3)
Other
Pedestrians
Road conditions
26.1
Source: Verkehr in Zahlen 2003, Deutscher Verkehrs-Verlag
1) Cause of accident determined by the police
2) Automobiles incl. motorcycles, mopeds, motor bicycles and other vehicles
3) Technological faults, maintenance faults
Driving in wrong lane,
overtaking, passing
Right of way, traffic regulations,
turning corners, pulling in and out,
u-turns
Driving too fast, tailgating
Potential for improvement
through vehicle communication!
Areas of Application for Vehicle-to-Vehicle Communication
On the highway
In city traffic
Danger alert
Intersection assistance
Vehicle – Vehicle – Communication
Warning beacon
Communication
Traffic flow
with traffic signals
Fahrzeug – Infrastruktur – Kommunikation
Foresighted Driving
In future, telematics (maps,
communication and networking)
will play an increasingly important
role in safe and efficient driving.
Information spectrum simple sensors
Traffic information
local forecast
complex sensors
+ telematics
telematics
regional forecast
wide-ranging
forecast
PReVENT WILLWARN – Local Danger Alert
Obstacle behind a bend
Slippery road surface
Danger alert
 Obstacle alert
 Warning in situations with
poor visibility or reduced
road grip
 Warning at road works
… through
vehicle communication
Reduced visibility
Road works
Vehicle-to-Vehicle Communication
Requirements
 Available everywhere
 Existing technology
 No operating costs
Solution
 Wireless LAN
 Available on every computer today
 Information distribution via Ad Hoc networks
PReVENT WILLWARN – Local Danger Alert
In rural areas:
• Store & forward
a
A
b
c
b
1
B
4
On highways:
2
3
• Ad Hoc networking
Routing protocols coordinated with the project NOW – Network on Wheels
Ad Hoc Communication
• Random group of vehicles creates an
(Ad Hoc) communication network
• Some vehicles leave the network, others join it
•Advantage
of Ad Hoc: no operating costs
• Communication between vehicles in new configuration
Danger Identification
The vehicle as sensor
 Vehicles already feature a large number of reliable
electronic driving safety systems today (ABS, ESP, …)
 All systems function more or less independently as
stand-alone applications
 Goal: information from these systems should be used
in a coordinated fashion to help identify dangers
Danger Identification
GPS
WLAN
(Navigation
device not
required)
Light, wipers,
rain sensor, …
e.g. lateral/longitudinal
acceleration, steering
angle/steering speed,
crash sensors
Additional
sensor
information
Data from
ESP/ ABS/
ASR
Data fusion and logical combination
 Goal: affordable solution for everybody  in particular also small cars
 Retrofitting possible
a) with appropriate danger detection system adapted to the vehicle
Slippery
b) without danger detection system, Poor
to relay information
surfaces
Obstacles
 Exclusive use
of
off-the-shelf
sensors
visibility
3-5 steps
Future communication architectures & related challenges

Applications (Traffic-, Fleet
Management, etc.) will function
via seamless access to various
communication technologies
(CALM +)
 Interfaces, handover procedures,
delay etc.

Local communication (Ad Hoc)
has to be harmonised to
infrastructure communication
 Way from WILLWARN scenario
to CVIS scenario
Future communication architectures & related challenges

Integration of personal mobile
devices (PDAs) has to be
ensured
 Evolution from vehicle-to-vehicle
communication
to road user to road user
communication (R2R-Com)

Systems will be very complex
 Have to be adequately explained
to the driver
 Must be easy to handle so that the
driver can concentrate on his main
task, which is…
Driving the vehicle!