the preventive balise maintenance solution...the preventive balise maintenance solution 10/27/2016 2...

10/27/2016 Company Presentation CONFIDENTIAL 1

Balise Life Check

The preventive balise maintenance solution

10/27/2016 Company Presentation CONFIDENTIAL 1

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

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

10/27/2016 3ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

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


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


Balise Life Check – Reference Documents

● Frequencies, Levels, Timings

● Telegram Format

● Coding/Decoding

● Performances

● Tolerances

● Messages

● Packets

● Variables

● Descriptions


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


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…


Balise Life Check Customers


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Antenna

AirGap Unit

Control and Analysis Software

Balise Life Check components


Balise Life Check Antena

● SIEMENS ANT-5A

● Off-the-shelf, proven in use

● Single cable

● Emits TELEPOWERING

● Captures UPLINK


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


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


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



EuroBalise Process – UpLink signal

● UPLINK signal acquired at 400 M samples/sec


EuroBalise Process– UpLink Filtering

● Digital filtering removes train (traction/braking) EM noise


EuroBalise Process – UpLink Filtering

● Balise telegram is FSK modulated with 2 frequencies: 3,951 MHz and

4,516 MHz


EuroBalise Process – UpLink Amplitude Jitter

● Amplitude Jitter

Subset 36 : $5.2.2.2.5 Amplitude Jitter -1.5 dB .. 1.5 dB


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)


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


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


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%


EuroBalise Process – MTIE

● Maximum Time Interval ErrorSubset 36 : §5.2.2.2.4 Data Rate Variation


EuroBalise Process – Bits extraction


EuroBalise Process – Bits Extraction

● Bits Extraction: 10 000 to 20 000 per balise


EuroBalise Process – Telegram Extraction

● Green : Valid telegram

● Yellow : Valid partial telegramSubset 36 : §4.3 Coding Requirements


EuroBalise Process – Telegram decoding/qualification

● Support short (341 bits) and long (1024 bits) telegrams.

● Fully implement Subset36 decoding.


EuroBalise Process – Initial Partial Telegram

● Verify that transmission head and tail are partial valid telegrams.


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


EuroBalise Process – Properties (Signature)


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KVB Balises Analysis



KER Balises – Bits Detection

● Bits Detection


KER Balises – Telegrams Detection

● Telegrams detection


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Optional Modules & Extensions

Balise Life Check


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.


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


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


10/27/2016 46

• New markets

Balise Life Check


Applicability outside of Eurobalise markethttps://en.wikipedia.org/wiki/Train_protection_system


Applicability outside of Eurobalise markethttps://en.wikipedia.org/wiki/Track_circuit


http://www.uic.org/cdrom/2008/11_wcrr2008/pdf/I.1.1.1.4.pdf

Today: Eurotunnel – TVM430, Mesea – TVM300Tomorrow: Ocvia – ITE, Crocodiles

https://en.wikipedia.org/wiki/Track_circuit

Turn BaliseLifeCheck upside down: check the onboard

ETCS antenna and BTM = BTMLifeCheck


Turn BaliseLifeCheck upside down: check the onboard

ETCS antenna and BTM = BTMLifeCheck


- Checks if the onboard antenna and BTM are Subset-036 compliant- Alert in case of degradation. Replace before it breaks

Thank you for your attention!

www.ertmssolutions.com
