the preventive balise maintenance solution...the preventive balise maintenance solution 10/27/2016 2...
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10/27/2016 Company Presentation CONFIDENTIAL 1
Balise Life Check
The preventive balise maintenance solution
10/27/2016 Company Presentation CONFIDENTIAL 1
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10/27/2016 2
System Description & Features
Customers
System Components
Recording Process
EuroBalise Analysis
KVB Analysis
Options & Extensions
New Markets
Agenda
ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL
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The Balise Life Check in one slide
● System for automated measuring and qualification of ERTMS Balises
● Independent of any other system (EVC)
● Works with existing inductive balise systems:
– ETCS Balises
– TBL1+ , SCMT Balises (ERTMS packet 44)
– KER Balises (KVB, EBICAB, RSDD).
● Designed for balises maintenance.
● Subset 85 lab-on-wheels
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Balise Life Check components
● A BTM transmitting/receiving antenna
Transmits energy to the balise (TELEPOWERING) and receives
signal from the it (UPLINK)
● An electronics control & acquisition unit
Generates TELEPOWERING, digitizes UPLINK signal
● A software application
Controls recording process, stores full UPLINK signal, analyzes
and decodes balise emission, qualifies measurements, displays
results
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Balise Life Check features
● Unattended & Automatic
● Generates ERTMS Subset 36 compliant TELEPOWERING signal
(27.095 MHz)
● Digitizes and stores the balise UPLINK signal at 400 M samples/sec
● Operational from 0 km/h to 500 km/h
● Display, export results
● Optionally: send alarms
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Balise Life Check – Reference Documents
● Frequencies, Levels, Timings
● Telegram Format
● Coding/Decoding
● Performances
● Tolerances
● Messages
● Packets
● Variables
● Descriptions
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Balise Life Check features : measurements
● UPLINK Amplitude Jitter: -2,0 dB to 1,5 dB
● UPLINK Instantaneous frequencies: 3.951 MHz and 4.516 MHz
● UPLINK central frequencies and deviations : +/- 7%
● UPLINK Mean Data Rate: 564,48 bits/sec
● UPLINK Mean Time Interval Error
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Balise Life Check features : bits and telegrams
● Extract bits from UPLINK signal
● Rebuild telegrams from bits
● Verify polynomial checksum bits
● Verify telegram repetitions
● Mark strange/invalid bits/telegrams
● Decode Subset26 application messages
– NID_BG, N_PIG, Packets…
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Balise Life Check Customers
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Antenna
AirGap Unit
Control and Analysis Software
Balise Life Check components
ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL
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Balise Life Check Antena
● SIEMENS ANT-5A
● Off-the-shelf, proven in use
● Single cable
● Emits TELEPOWERING
● Captures UPLINK
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Balise Life Check - AirGap Unit
● Generate TELEPOWERING
● Amplify TELEPOWERING
● Auto-detect balise presence
● Acquire UPLINK from antenna
● Separate UPLINK/TELEPOWERING
● Digitize UPLINK (400 M samples/sec)
● Transmit to PC
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Balise Life Check - Software Application
● Controls Air Gap unit
● Stores RAW digitized signals
● Performs analysis / measurements / qualification
● Computes numerical properties
● Displays numerical properties
● Displays analog curves
● Displays telegram contents
● Export to Excel
● Export to Google Earth
● Export to PDF
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BLC Recorder
Balise Life Check Software
ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL
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Balise Life Check Recorder
● Controls AirGap Unit
● Stores acquisitions in DB
● On-the-fly analyzis
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EuroBalise Analysis process
KER balises process
Balise Life Check Software
ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL
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EuroBalise Process – UpLink signal
● UPLINK signal acquired at 400 M samples/sec
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EuroBalise Process– UpLink Filtering
● Digital filtering removes train (traction/braking) EM noise
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EuroBalise Process – UpLink Filtering
● Balise telegram is FSK modulated with 2 frequencies: 3,951 MHz and
4,516 MHz
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EuroBalise Process – UpLink Amplitude Jitter
● Amplitude Jitter
Subset 36 : $5.2.2.2.5 Amplitude Jitter -1.5 dB .. 1.5 dB
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EuroBalise Process – Instananeous FSK Frequencies
● Instananeous Frequencies Evaluation
Subset 36 : §5.2.2.2.2 Centre Frequency and Frequency Deviation
The magnetic field shall produce two frequencies that shall be used for frequency shift keying (FSK) of the Uplink data. The two frequencies shall nominally be 3.951 MHz for a logical 0 (fL) and nominally be 4.516 MHz for a logical 1 (fH)
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EuroBalise Process – Central Frequency
● Center FrequencySubset 36 §5.2.2.2.2 Centre Frequency and Frequency Deviation
The centre frequency shall be (fH+fL)/2 = 4.234 MHz
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EuroBalise Process – Frequency Deviation
● Frequency DeviationSubset 36 §5.2.2.2.2 Centre Frequency and Frequency Deviation
The frequency deviation shall be (fH-fL)/2 = 282.24 kHz
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EuroBalise Process – Mean Data Rate
● Mean Data RateSubset 36 : §5.2.2.2.3 Mean Data RateThe mean data rate is defined as 1500 divided by the length of 1500 consecutive data bits.The mean data rate shall be 564.48 kbit/s, with an overall tolerance of +/- 2.5%
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EuroBalise Process – MTIE
● Maximum Time Interval ErrorSubset 36 : §5.2.2.2.4 Data Rate Variation
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EuroBalise Process – Bits extraction
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EuroBalise Process – Bits Extraction
● Bits Extraction: 10 000 to 20 000 per balise
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EuroBalise Process – Telegram Extraction
● Green : Valid telegram
● Yellow : Valid partial telegramSubset 36 : §4.3 Coding Requirements
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EuroBalise Process – Telegram decoding/qualification
● Support short (341 bits) and long (1024 bits) telegrams.
● Fully implement Subset36 decoding.
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EuroBalise Process – Initial Partial Telegram
● Verify that transmission head and tail are partial valid telegrams.
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EuroBalise Process – Telegram Decoding
● Subset 26 – System Requirements Specifications
● Chapter 7 – ERTMS/ETCS Language
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Variables/Packets name
Binary values
Human Readable
Description fromSubset 26
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EuroBalise Process – Properties (Signature)
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KVB Balises Analysis
Balise Life Check Software
ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL
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KER Balises – Bits Detection
● Bits Detection
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KER Balises – Telegrams Detection
● Telegrams detection
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Optional Modules & Extensions
Balise Life Check
ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL
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Balise Life Check – Big Metal Masses (option)
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Big Metallic Masses on track can potentially trigger Alarms on BTM
system caused by a strong BTM antenna detuning causing BTM
Telepowering failures.
These alarms can trigger strong braking situations by EVC unless
properly identified.
BMM optional functionality on BLC will help to produce a full
cartography of antenna tuning (impedance) characteristics all along the
track.
Potential “Big Metallic Masses” areas can therefore be identified.
ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL
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Balise Life Check – Balise Positioning (extension)
● Compares Observations (on the field) with customer
provided Reference (implementation plans)
● Uses High Precision GPS with integrated Inertial Movement
Unit (IMU)
● Precision <= 2m
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Balise Life Check – Alarms Generator (extension)
● Detections
– Out of Tolerance balises
– Packet 254 (issue with LEU)
– Missing Balise
● Notifications
– SMS Alarm through public GMS
– Summary upload through 3G
– Summary upload through WiFi
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• New markets
Balise Life Check
ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL
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Applicability outside of Eurobalise markethttps://en.wikipedia.org/wiki/Train_protection_system
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Applicability outside of Eurobalise markethttps://en.wikipedia.org/wiki/Track_circuit
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http://www.uic.org/cdrom/2008/11_wcrr2008/pdf/I.1.1.1.4.pdf
Today: Eurotunnel – TVM430, Mesea – TVM300Tomorrow: Ocvia – ITE, Crocodiles
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Turn BaliseLifeCheck upside down: check the onboard
ETCS antenna and BTM = BTMLifeCheck
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Turn BaliseLifeCheck upside down: check the onboard
ETCS antenna and BTM = BTMLifeCheck
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- Checks if the onboard antenna and BTM are Subset-036 compliant- Alert in case of degradation. Replace before it breaks
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Thank you for your attention!
www.ertmssolutions.com
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