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Transcript of Www.thalesgroup.com/germany Thales Axle Counter The Challenges for a modern Train Detection System...
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Thales Axle CounterThe Challenges for a modern
Train Detection System
Joachim JanleDirector Axle Counter Business
Axle Counter, Modern Challenges, 240412.PPT
2 /
THALES World-Wide market leader in Axle Counter Technology
More than 80 years experience with Axle Counters
Axle Counter – Past Challenges
Axle Counter, Modern Challenges, 240412.PPT
3 /
System Evolution Introduction in the 1930ies: First Inductive Rail Contacts
BUT: Axle Counters not as reliable as Track Circuits
Change in the late 1960ies: Introduction of Electronic Axle Counters -> Drastic Improvement of reliability compared to Track Circuits
New Generation in the 1980ies: Introduction of Microprocessor technology -> Introduction of redundant system concepts (2oo3) and fault tolerant data transmission
1995: German Railways DB decides to go exclusively with Axle Counters for Train Detection for two reasons Economical: Application of Axle Counter much cheaper than Track Circuits
Operational: Much higher reliability than track circuits
2000: Introduction of CENELEC Compliant Systems Modular and Scalable Thales Multi-Section Axle Counter AzLM
Axle Counter – Past Challenges
Axle Counter, Modern Challenges, 240412.PPT
4 /
What has in the past prevented the widespread application of Axle
Counters ?
Axle Counter – Future Challenges
Axle Counter, Modern Challenges, 240412.PPT
5 /
Broken Rail Detection
Axle Counter – Past Challenges
Track Circuits can detect broken rails, Axle Counters can not….
Year '91 '92 '93 '94 '95 '96 '97 '98 '99 '00
No. of Cracked Rails - 61 52 41 65 38 39 45 22 22
No. of Broken Rails 2 1 0 1 1 2 0 0 4 0
No. of Detected by TC 0 0 0 1 0 1 0 0 2 0
Example: Statistic by MTRC (Hong Kong), June 27th, 2001
BUT: Can Track Circuits really detect Broken Rails (reliably) ?
SUMMARY: Only independent Track Inspection (e.g. Ultrasonic) can reliably detect
cracked and broken rail
-> Track Circuits can NOT !
Axle Counter, Modern Challenges, 240412.PPT
6 /
Track Circuit Clips
Axle Counter – Past Challenges
A Track Circuit Clip can block a Track Circuit, e.g. in case of an accident, Axle Counter can not….
BUT: What happens in block lines without train detection ?
Stopping a train to block an adjacent track is a safety risk by itself
SOLUTION: Train Radio is now widely available for driver communication
It is faster and safer than a Track Circuit Clip
Axle Counter, Modern Challenges, 240412.PPT
7 /
How are Axle Counters today contributing to Railways growth in safety
and operational efficiency ?
Axle Counter – Performance Challenges
Axle Counter, Modern Challenges, 240412.PPT
8 /
Full Redundant Axle Counter Applications
Axle Counter – Performance Challenges
Train detection reaching 100% Availability !
Background: Applications: Lines with extremely high train density, Operational
Bottleneck sections, Difficult site access in case of failure (e.g. tunnels)
Areas with high impact on railway operation
-> Driven by financial compensation for Non-Availability (delay Minutes)
Reference Projects: Lötschberg Tunnel Project, Switzerland
HSL South High speed Line, Netherlands
Gotthard Tunnel Project
Axle Counter, Modern Challenges, 240412.PPT
9 / Axle Counter – Performance Challenges
Full Redundant Axle Counter Systems Highest availability of service critical railway lines
Proven and hardened solution
In service since 2005
The interface to the interlocking is evolving over time
HSL South, NL
Lötschberg, CH
Axle Counter, Modern Challenges, 240412.PPT
10 /
Reset Reset
Sectionstatus
ACE 2oo2ACE 2oo2
DP DP DP DP
ACE 2oo2ACE 2oo2
Sectionstatus
ACE 2oo2ACE 2oo2
DP DP DP DP
ACE 2oo2ACE 2oo2
Interlocking Interlocking
Full redundant 2 x 2oo2 configurations
Axle Counter – Performance Challenges
Axle Counter, Modern Challenges, 240412.PPT
11 /
Classical Application Indoor 2oo2 ACE, Non-Redundant Outdoor
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ACESection 1
Redundancy concepts Indoor redundancy
Outdoor redundancy
Full redundancy: indoor and outdoor redundancy
InterlockingRelay or serial interface
Axle Counter – Redundancy Flexibility
Axle Counter, Modern Challenges, 240412.PPT
12 /
Indoor redundancy Indoor 2oo2 ACE, Non-Redundant Outdoor
Relay Output or Serial Output to Interlocking
Section evaluation in Separate Circuitry or in the Interlocking
Alternative: duplicated cable infrastructure
Interlocking
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Section 1
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Section 1
Axle Counter – Redundancy Flexibility
Axle Counter, Modern Challenges, 240412.PPT
13 /
Outdoor redundancy Outdoor Redundant Concept 2 x Outdoor and 1 x Indoor
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Section evaluation in Separate Circuitry or in the InterlockingI/
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ACE
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Interlocking
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Axle Counter – Redundancy Flexibility
Axle Counter, Modern Challenges, 240412.PPT
14 /
Full Redundancy Full Redundant Concept 2 x (Indoor 2x2oo2 ACE + Outdoor).
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Section evaluation in Separate Circuitry or in the Interlocking.I/
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Section 1a
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ACE 1
ACE 2
Relay or serial interface
Proven and hardened solution: In service since 2005.
Axle Counter – Redundancy Flexibility
Axle Counter, Modern Challenges, 240412.PPT
15 /
What is making Axle Counters even more effective ?
Axle Counter – Efficiency Challenges
Axle Counter, Modern Challenges, 240412.PPT
16 /
Text
REDUCTION of
OWNERSHIP COST
SEAMLESS INTEGRATION
intoIP NETWORKS
STANDARDIZED INTERFACE
to ELECTRONIC INTERLOCKING
NEW value adding AXLE
COUNTERAPPLICATIONS
Key features of the Thales Az LM V6-series
Axle Counter – Efficiency Challenges
Axle Counter, Modern Challenges, 240412.PPT
17 /
Reduction of Ownership Cost: The new Rail Contact SK30K No disassembly for tamping and rail grinding
Mounting over sleeper in combination with large rail profiles (e.g. UIC60, S54, …)
Cable outlet on/beside the sleeper (protection of cables)
Electrically compatible with the Sk30H Rail Contact
Improved compatibility with track maintenance vehicles
Axle Counter – Efficiency Challenges
Axle Counter, Modern Challenges, 240412.PPT
18 /
2-way Vehicle Zone
70mm
26...50 mm
Sk30H Sk30K
Reduction of Ownership Cost: The new Rail Contact Sk30K Improved Clearance at rail mounting
Axle Counter – Efficiency Challenges
Axle Counter, Modern Challenges, 240412.PPT
19 /
Axle Counter EvaluatorAxle Counter Evaluator
Standardized serial IP interface to Electronic Interlocking
No Relays and Parallel I/O cards in the indoor unit required
No relay / opto coupler interfaces at the interlocking required
Available for 2oo2 and redundant 2oo3 system IP connection to
the Electronic Interlocking the Operation and Maintenance Centres
4
Relay Output
44444
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Interlocking Interlocking
Relays / Opto couplers
Axle Counter – Efficiency Challenges
Axle Counter, Modern Challenges, 240412.PPT
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2 Power Supply
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IP network
InterlockingOperation & Maintenance
IP network IP network
IP network IP network
IP network IP network
Seamless integration into IP networks e.g. Ethernet right up to the Trackside Detection Points
Axle Counter – Efficiency Challenges
Axle Counter, Modern Challenges, 240412.PPT
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Seamless integration into IP networks ACE-ACE connection via IP network.
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IP network
Axle Counter – Efficiency Challenges
Axle Counter, Modern Challenges, 240412.PPT
22 /
Serial Interface Reduction of Relay boards
Seamless integration into IP networks Drastic reduction in Hardware
Axle Counter – Efficiency Challenges
Detection Points via IP network Reduction of Serial I/O
Boards
Axle Counter, Modern Challenges, 240412.PPT
23 /
Operation and Maintenance IP based diagnostic information
Remote Resetting
Axle Counter – Future Challenges
From individually maintained Stations…..
To full CTC controlled area supervision…..