The shore based AIS Service as an e-navigation service
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NNF E-navigation Confere nce Oslo, October 16th – 17th 2007 1 The shore based AIS Service as an e-navigation service Principle engineer Tom Braute Norwegian Coastal Administration NNF E-navigation Conference – Oslo, October 16th – 17th 2007
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The shore based AIS Service as an e-navigation service. Principle engineer Tom Braute Norwegian Coastal Administration. NNF E-navigation Conference – Oslo, October 16th – 17th 2007. The Norwegian Coastal Administration AIS service. Layered structure: AIS Service Management - PowerPoint PPT Presentation
Transcript of The shore based AIS Service as an e-navigation service
NNF E-navigation Conference Oslo, October 16th – 17th 2007
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The shore based AIS Service as an e-navigation service
Principle engineer Tom BrauteNorwegian Coastal Administration
NNF E-navigation Conference – Oslo, October 16th – 17th 2007
NNF E-navigation Conference Oslo, October 16th – 17th 2007
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The Norwegian Coastal Administration AIS service
Layered structure:
AIS Service Management
Logical Shore Station
Physical Shore Station
Interlan VPN FLO/IKT
AIS Administrasjonssenter(Haugesund)
LSS Master Alarm systemDB control
PSSPSS
PSSPSS
PSSAIS Basestasjon
PSSPSSPSSPSSPSSServer
Vardø
AIS til VTS
Klient admKlienter
AIS tilHovedredningssentralen
Klient adm
AIS til CRIADS
Criads serverKlienter
PSSPSSPSSPSSPSSServer
Horten
Distribution Network Coastal adm / Internet
SjøfartsdirektoratetPoliti Toll Andre etater og havner
Klienter
External Basic AIS Services
36 AIS Physical
Shore Stations
NNF E-navigation Conference Oslo, October 16th – 17th 2007
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External Basic AIS Services -examples
• Receive data from AIS mobile stations
• Transmit safety related messages
• Transmit DGNSS corrections
• Transmit binary messages
• Transmit synthetic/virtual AtoN data
• Transmit assignment command
NNF E-navigation Conference Oslo, October 16th – 17th 2007
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Use of received AIS dataExamples• AISOnline (WEB
presentation tool)• VTS; in
combination with other shore-based ENAV services– Radar– VHF– LRIT...
NNF E-navigation Conference Oslo, October 16th – 17th 2007
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Use of AIS Binary Messages(MET/HYD data application)
NNF E-navigation Conference Oslo, October 16th – 17th 2007
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LAND
Onboard Equipment
VESSEL
AIS GNSS
Base Station
DGNSS Service
Shore based AIS Service
Use of DGNSS Corrections
GNSS
DGNSS corrections
NNF E-navigation Conference Oslo, October 16th – 17th 2007
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Virtual AtoN NB! Demonstration only. IEC standard for presentation of navigation information (IEC 62288) requires AIS AtoNs to be displayed by a diamond symbol.
Example:
• Need to mark temporary danger
• Possible solution: Virtual special mark
NNF E-navigation Conference Oslo, October 16th – 17th 2007
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Point of viewfrom shore applications
Encapsulation of complexity for shore applications
Applica-tion 1
Applica-tion 2
Applica-tion 3
Applica-tion 4
DataTrans-
ferNet-work
Link
eNAV-service
Concept of ENAV service
Shore based AISService
AIS VDL
Application-to- application virtual connection(peer-to-peer)
NNF E-navigation Conference Oslo, October 16th – 17th 2007
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ENAV System Architecture
Value-addedData
Processingservices
User Interaction
Service
Gateway Service
DataCollectionand DataTransferservices
common shore-based eNAV system architecture
Traffic objects,including
ships
PrimaryUsers
Shore based„third party“ users
Shore based AIS Service
Data exchange shore-to-shore
Add value to raw data MMI to primary users
(single service)
Interfacing ENAV system to physical links
Functional interface = External Basic AIS Services
NNF E-navigation Conference Oslo, October 16th – 17th 2007
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Definition of e-navigation(IMO WG on ENAV)
• “E-Navigation is the harmonized collection, integration, exchange, presentation and analysis of maritime information onboard and ashore by electronic means to enhance berth to berth navigation and related services, for safety and security at sea and protection of the marine environment.”
NNF E-navigation Conference Oslo, October 16th – 17th 2007
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Limitations of AIS as an ENAV service
• Limited link capabilities
• Safety issues
• Limited shipborne equipment capabilities– Display of virtual/syntetic AtoNs – Display of binary application data– Use of DGNSS corrections
NNF E-navigation Conference Oslo, October 16th – 17th 2007
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AIS link capabilities
Shore
e-Nav
System
Ship
e-Nav
System
Traffic data
Aids to Navigation
Maritime Safety Info
Met/Hyd/Oce service
Ship Reporting
...
Integrity Confidentiality
AvailabilityTransparency
Authenticity
AIS LINK
Integrity?Authenticity?
Confidentiality?
NNF E-navigation Conference Oslo, October 16th – 17th 2007
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Safety issues
!! Main function of AIS is anti-collision !!
• AIS Services requires capacity on the VDL
• Management of the VDL capacity is needed to protect the main functions of AIS
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Questions?
