Use of broadband communication for information and

Use of broadband communication for
information and control purposes in railways
Dr.-Ing. Michael Meyer zu Hörste (DLR FS)
Folie 1
Standardfoliensatz >24.4.2006
Structure
Introduction
Communication application cases
State-of-the-art
One example for safety-relevant applications
Conclusion and perspective
Folie 2
Standardfoliensarz > 24.4.2006
Introduction
Functionality:
Many railway applications need to exchange information
Bandwidth requirements differ from location reference to
realtime-video
Safety requirements differ from non safe (passenger entertainment)
to highly safe (train control)
Technology:
Digital broadband communication systems are available on the
market (W-LAN, DECT, WiMax, etc.)
Robustness, cost and quality enable use for railway
W-LAN: Wireless Local Area Network, DECT: Digital Enhanced Cordless Telecommunication
Folie 3
Standardfoliensarz > 24.4.2006
Communication application cases in Railways
Train to infrastructure (T2I) centre
Interlocking/
Radio Block Centre
Balise
Axlecounter
Balise
Axlecounter
Folie 4
Standardfoliensarz > 24.4.2006
Communication application cases in Railways
Train to infrastructure (T2I) de-central units
Interlocking/
Radio Block Centre
Balise
Axlecounter
Balise
Axlecounter
Folie 5
Standardfoliensarz > 24.4.2006
Communication application cases in Railways
Train to train (T2T)
Interlocking/
Radio Block Centre
Balise
Axlecounter
Balise
Axlecounter
Folie 6
Standardfoliensarz > 24.4.2006
Communication application cases in Railways
Vehicle to Vehicle (V2)
Interlocking/
Radio Block Centre
Balise
Axlecounter
Folie 7
Standardfoliensarz > 24.4.2006
Effort
Functional application classes
(classified by safety-relevance)
Safetysystems
Controlsystems
(Assistance)
Informationsystems
Time
Folie 8
Standardfoliensarz > 24.4.2006
Possible functional applications by class
(Examples)
Safety-systems:
Train Control: Movement authority transmission
Train separation: Position and speed reporting
Control-systems:
Traction control
Tilting train control
Information-systems:
Passenger information
On board entertainment systems
On board internet access
Maintenance data collection
Folie 9
Standardfoliensarz > 24.4.2006
State of the art: current projects
Name
Aim
BIT
Funded
by
BMBF
MAR
(USA)
Digital broadband
commuter trains
internet
access
in
BBRail
(Japan)
Digital broadband
commuter trains
internet
access
in
Bahn2050
Siemens
Reliable and safe communication between
(Germany) autonomous vehicles (DECT)
Digital broadband internet access in high(Germany) speed trains
Beijing’s
Siemens
Train Control System (W-LAN)
Metro
Line (Germany)
10
RCAS
DLR
Train to train communication
(Germany)
W-LAN: Wireless Local Area Network, DECT: Digital Enhanced Cordless Telecommunication
DLR: German Aerospace Centre,
RCAS: Railway Collision Avoidance System
Folie 10
Standardfoliensarz > 24.4.2006
Idea of the Railway Collision Avoidance
System (RCAS)
Alert!
Safety overlay
system
T2T communication
Funded by the DLR
Demonstration
2008 -2009
EBULA
Folie 11
Standardfoliensarz > 24.4.2006
Conclusion and Perspective
Conclusion
Digital broadband communication systems are used as common-offthe-shelf products for railway purposes
Normally these purposes are not safety-relevant,
but in future these technologies can be used for safe applications, too
Perspective
Continuing the work on the project RCAS by:
Demonstration of reliability of the T2T and T2I communication
Concept of safety of the communication
Integration of Localisation and communication
Identifying suitable technology – application pairs
Folie 12
Standardfoliensarz > 24.4.2006
Thank you for your attention!
Any questions?
Folie 13
Standardfoliensarz > 24.4.2006