The document describes the Balise Life Check system, which is used to automatically measure and qualify ERTMS balises. It consists of a transmitting/receiving antenna, an electronics control unit, and software. The system transmits energy to power balises and receives signal data, which it analyzes to check parameters like amplitude jitter, frequency, bit rates, and telegram contents against specifications. It detects any issues and can optionally send alerts. The software decodes balise messages and provides numerical and graphical outputs. The system works on both Eurobalise and KVB balises and can help identify problematic areas on tracks.

1. 10/27/2016 Company Presentation CONFIDENTIAL 1
Balise Life Check
The preventive balise maintenance solution
10/27/2016 Company Presentation CONFIDENTIAL 1

2. 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

3. 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

4. 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
10/27/2016 4ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

5. 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
10/27/2016 5ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

6. Balise Life Check – Reference Documents
● Frequencies, Levels, Timings
● Telegram Format
● Coding/Decoding
● Performances
● Tolerances
● Messages
● Packets
● Variables
● Descriptions
10/27/2016 6ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

7. 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
10/27/2016 7ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

8. 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…
10/27/2016 8ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

9. Balise Life Check Customers
10/27/2016 9ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

10. 10/27/2016 10
Antenna
AirGap Unit
Control and Analysis Software
Balise Life Check components
ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

11. Balise Life Check Antena
● SIEMENS ANT-5A
● Off-the-shelf, proven in use
● Single cable
● Emits TELEPOWERING
● Captures UPLINK
10/27/2016 11ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

12. 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
10/27/2016 12ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

13. 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
10/27/2016 13ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

14. 10/27/2016 14
BLC Recorder
Balise Life Check Software
ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

15. Balise Life Check Recorder
● Controls AirGap Unit
● Stores acquisitions in DB
● On-the-fly analyzis
10/27/2016 15ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

16. 10/27/2016 16
EuroBalise Analysis process
KER balises process
Balise Life Check Software
ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

17. EuroBalise Process – UpLink signal
● UPLINK signal acquired at 400 M samples/sec
10/27/2016 17ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

18. EuroBalise Process– UpLink Filtering
● Digital filtering removes train (traction/braking) EM noise
10/27/2016 18ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

19. EuroBalise Process – UpLink Filtering
● Balise telegram is FSK modulated with 2 frequencies: 3,951 MHz and
4,516 MHz
10/27/2016 19ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

20. EuroBalise Process – UpLink Amplitude Jitter
● Amplitude Jitter
Subset 36 : $5.2.2.2.5 Amplitude Jitter -1.5 dB .. 1.5 dB
10/27/2016 20ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

21. 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)
10/27/2016 21ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

22. EuroBalise Process – Central Frequency
● Center Frequency
Subset 36 §5.2.2.2.2 Centre Frequency and Frequency Deviation
The centre frequency shall be (fH+fL)/2 = 4.234 MHz
10/27/2016 22ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

23. EuroBalise Process – Frequency Deviation
● Frequency Deviation
Subset 36 §5.2.2.2.2 Centre Frequency and Frequency Deviation
The frequency deviation shall be (fH-fL)/2 = 282.24 kHz
10/27/2016 23ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

24. EuroBalise Process – Mean Data Rate
● Mean Data Rate
Subset 36 : §5.2.2.2.3 Mean Data Rate
The 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%
10/27/2016 24ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

25. EuroBalise Process – MTIE
● Maximum Time Interval Error
Subset 36 : §5.2.2.2.4 Data Rate Variation
10/27/2016 25ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

26. EuroBalise Process – Bits extraction
10/27/2016 26ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

27. EuroBalise Process – Bits Extraction
● Bits Extraction: 10 000 to 20 000 per balise
10/27/2016 27ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

28. EuroBalise Process – Telegram Extraction
● Green : Valid telegram
● Yellow : Valid partial telegram
Subset 36 : §4.3 Coding Requirements
10/27/2016 28ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

29. EuroBalise Process – Telegram decoding/qualification
● Support short (341 bits) and long (1024 bits) telegrams.
● Fully implement Subset36 decoding.
10/27/2016 29ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

30. EuroBalise Process – Initial Partial Telegram
● Verify that transmission head and tail are partial valid telegrams.
10/27/2016 30ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

31. EuroBalise Process – Telegram Decoding
● Subset 26 – System Requirements Specifications
● Chapter 7 – ERTMS/ETCS Language
10/27/2016 31
Variables/Packets name
Binary values
Human Readable
Description from
Subset 26
ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

32. EuroBalise Process – Properties (Signature)
10/27/2016 32ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

33. 10/27/2016 33
KVB Balises Analysis
Balise Life Check Software
ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

34. KER Balises – Bits Detection
● Bits Detection
10/27/2016 40ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

35. KER Balises – Telegrams Detection
● Telegrams detection
10/27/2016 41ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

36. 10/27/2016 42
Optional Modules & Extensions
Balise Life Check
ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

37. Balise Life Check – Big Metal Masses (option)
10/27/2016 43
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

38. 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
10/27/2016 44ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

39. 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 45ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

40. 10/27/2016 46
• New markets
Balise Life Check
ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

41. Applicability outside of Eurobalise market
https://en.wikipedia.org/wiki/Train_protection_system
10/27/2016 47ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

42. Applicability outside of Eurobalise market
https://en.wikipedia.org/wiki/Track_circuit
10/27/2016 48ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL
http://www.uic.org/cdrom/2008/11_wcrr2008/pdf/I.1.1.1.4.pdf
Today: Eurotunnel – TVM430, Mesea – TVM300
Tomorrow: Ocvia – ITE, Crocodiles

43. Turn BaliseLifeCheck upside down: check the onboard
ETCS antenna and BTM = BTMLifeCheck
10/27/2016 49ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL

44. Turn BaliseLifeCheck upside down: check the onboard
ETCS antenna and BTM = BTMLifeCheck
10/27/2016 50ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL
- Checks if the
onboard antenna and
BTM are Subset-036
compliant
- Alert in case of
degradation. Replace
before it breaks 

45. Thank you for your attention!
www.ertmssolutions.com
10/27/2016 51ERTMS Solutions’ BaliseLifeCheck CONFIDENTIAL