fans-1/a and atn data link: an avionics perspective bob kerr [email protected]
TRANSCRIPT
FANS-1/A and ATN Data Link:FANS-1/A and ATN Data Link:An Avionics PerspectiveAn Avionics Perspective
ATN 2000 - London - Sept. 2000 2
AgendaAgenda
• Aviation Data Link Users
• Today’s ATC Data Link: FANS-1/A
• The Next Step: ATN
• System Accommodations
• Lessons Learned
• Conclusion
ATN 2000 - London - Sept. 2000 3
Potential Aviation Data Link UsersPotential Aviation Data Link Users
ATN 2000 - London - Sept. 2000 4
FANS 1/A Data Link - OverviewFANS 1/A Data Link - Overview
• Augments other ATM functions, e.g. RNP• ATC Communications using existing ACARS data link
infrastructure– Automatic Dependent Surveillance– ATC Data Link - (pilot controller communications)
• Aircraft Equipped (current or available soon)
– Boeing 717, 747-400, 757, 767, 717, MD-90, MD-10, MD-11– Airbus A320 family, A330, A340– Planned for Classic retrofit, Biz Jets, military transports, ...
• Regions– Oceanic and Remote Airspace
• Benefits– Crew workload (replaces routine HF communications)– Dynamic Re-routing– User-preferred Trajectory (available soon)
ATN 2000 - London - Sept. 2000 5
Satcom
HF Radio
A429
Analog VHF Radio
A429
Equipment Requirements - FANS-1/A D/LEquipment Requirements - FANS-1/A D/L
FMSA-618,A-622
A-724BACARS MU
MFD
MCDUData Link
Key
ATN 2000 - London - Sept. 2000 6
Satcom
HF Radio
A429
A429
FMS
MFD
MCDU
Equipment Requirements - ATNEquipment Requirements - ATN
A-758 CMUATN Router &Applications
A-429
A-750VHF Data Radio
VDL Mode 2
Protocol Update
Data Level 3
ATN Applications
CHI Upgrade
ATN 2000 - London - Sept. 2000 7
VDR GrowthVDR Growth
<2000 2000 2001
IncreasedFunctionality
Today’s VHF RadioToday’s VHF RadioMode 0Mode 0
•25 kHz/8.33 kHz•FM Immunity•2400 bps ACARS•MSK Modulation
•Internal Modem•ARINC 429 Buss
to CMU/ATSU
•D8PSK Modulation•Spectrum Mask•31.5 kbps data link
Mode 2 VHF RadioMode 2 VHF Radio
2nd DSPMode A VHF RadioMode A VHF Radio
Modem
ATN 2000 - London - Sept. 2000 8
CMU GrowthCMU Growth
•ACARS Messaging•Support for FANS-1
ATC Messages
•ARINC 623 ATC Apps (PDC, OCX, ATIS, etc)
•Uses MCDU or Proprietary CDU
Today’s ACARS MU Today’s ACARS MU or ATSUor ATSU
Today’s Systems 2001 2002 2004 - 2007
IncreasedFunctionality
• ATN Baseline 2 Applications• Dual Operation• Enhanced Security (authentication and encryption)• Network Management
•VDL Mode 2 AOA•ARINC 758 or 724B
•ATN Protocols•ATN Baseline 1 Apps
(CM, ADS, CPDLC)•Data Link CDU
VDL Mode 2 VDL Mode 2 CMUCMU
(ARINC 758)(ARINC 758)
ATN CompliantATN Compliant CMUCMU
ATN 2000 - London - Sept. 2000 9
FMC Data Link GrowthFMC Data Link Growth
Today’s Systems 2005 - 2007
IncreasedFunctionality
•ATN Baseline 1 SupportAuto-load route uplinkADS data transmission
•ATN Baseline 2 SupportClearance requestsClearance uplinks
•ACARS Apps (AOC)•FANS 1/A Apps•ARINC 622
Today’s Flight Today’s Flight Management Management Computer Computer
CPDLC Compliant CPDLC Compliant Flight Management Flight Management
Computer Computer
ATN 2000 - London - Sept. 2000 10
Integrated Avionics Data Link GrowthIntegrated Avionics Data Link Growth
Today’s Systems 2005 - 2007
IncreasedFunctionality
•ACARS Apps (AOC)•FANS 1/A Apps•ARINC 622
•VDL Mode 2 AOA
•ATN Protocols•ATN Applications
(CM, ADS, CPDLC)
Today’s Integrated Today’s Integrated Avionics ComputerAvionics Computer
e.g. AIMS, EPICe.g. AIMS, EPIC
CPDLC Compliant CPDLC Compliant Integrated Avionics Integrated Avionics
ComputerComputer
ATN 2000 - London - Sept. 2000 11
Crew InterfaceCrew Interface
2119Z FROM KZAK CTL
WILCO*
OPENAT ALCOA CLB TO & MAINT FL310
STDBY** UNABLE
< OTHER
DCDU
MCDU
MFD
ATN 2000 - London - Sept. 2000 12
Integration ChallengesIntegration Challenges
ATN 2000 - London - Sept. 2000 13
System AccommodationsSystem Accommodations
• FANS-1/A and ATN Services will co-exist into the future
• Different communications infrastructure• Different message definitions
– but some mapping is possible
• Operational and Service differences must be minimized
• Accommodation possible on aircraft, ground, or both– Possibility of reduced benefits regionally
• Under analysis in RTCA SC-189/EuroCAE WG-51
ATN 2000 - London - Sept. 2000 14
Lessons Learned (1)Lessons Learned (1)
• Programmatic
– Tight configuration management for successful
interoperability
– Close cooperation between the participating ATC Service
Providers is required
– Technology introduction quicker than modifications to
operational procedures
– Operational benefits not as early as planned
ATN 2000 - London - Sept. 2000 15
Lessons Learned (2)Lessons Learned (2)
• Human Factors
– Pilot interface must be carefully designed
– Adequate crew training is expensive but mandatory
• Technical
– Compatibility of air and ground navigation data base
– Significant operational benefits accrue from tight interface
with Flight Management System ‘Auto-load’ of Route Clearances, etc.
– High integrity and robust data link infrastructure required
to support ATC data link safety requirements
ATN 2000 - London - Sept. 2000 16
ConclusionsConclusions
• FANS-1/A ATC Data Link suitable for oceanic and remote geographic regions into the future
• ATN ATC Data Link is NOT an immediate replacement for FANS-1/A– Supports different airspace needs
– Supports different user mission needs
• Successful ATC Data Link requires tight integration between Communication system and other avionics– CHI : ‘Pilot friendly interface’
– FMC : CPDLC integration with the ‘navigator’
www.honeywell.com
18ATN 2000 - London - Sept. 2000