an understanding of the basics of A.I.S. operation
1.3 Understand
the advantages of the system1.4 Understand the dis-advantages of the system
1.5 Understand the limitations of the system
Разделы презентаций
- Разное
- Английский язык
- Астрономия
- Алгебра
- Биология
- География
- Геометрия
- Детские презентации
- Информатика
- История
- Литература
- Математика
- Медицина
- Менеджмент
- Музыка
- МХК
- Немецкий язык
- ОБЖ
- Обществознание
- Окружающий мир
- Педагогика
- Русский язык
- Технология
- Физика
- Философия
- Химия
- Шаблоны, картинки для презентаций
- Экология
- Экономика
- Юриспруденция
AIS Automatic Identification System KMA Deck Officers Year 1 2012 - 2013
Содержание
- 1. AIS Automatic Identification System KMA Deck Officers Year 1 2012 - 2013
- 2. A.I.S.Automatic Identification System (A.I.S.)
- 3. A.I.S.Topics 1.1 Gain an appreciation of the
- 4. A.I.S.What is it? Automatic Identification System According
- 5. A.I.S.1.1 Legal obligation Chapter VSafety of Navigation Regulation 19
- 6. A.I.S.1.2 Automatic Identification System (A.I.S.) Why AIS
- 7. A.I.S.Typical AIS panels1.2 Automatic Identification System (A.I.S.)
- 8. A.I.S.1.2 Automatic Identification System (A.I.S.)
- 9. A.I.S.1.2 A.I.S. a few basics AIS is
- 10. A.I.S.
- 11. In a TDMA system (like GSM) time
- 12. Ships at sea have no network system
- 13. There are 3 operating modes1. SOTDMA2. FATDMA3. POLLING
- 14. Autonomous mode: System “looks ahead in time”
- 15. Слайд 15
- 16. 2. FATDMA Fixed Access Time Division Multiple
- 17. 3. Polling ModeAlso called interrogation mode. One
- 18. Technical description AIS station2 types: Class-A:
- 19. Class-A station(D)GPS: Used for time synchronization. Can
- 20. In some cases (North America) one can
- 21. 1.2 AIS informationA.I.S.
- 22. 1.2 Update rates of AIS A.I.S.
- 23. A.I.S.Position report, message 1,2,3 MMSI Position in
- 24. A.I.S.Ship Static and Voyage related data, message
- 25. A.I.S.Ship Static and Voyage related data, message
- 26. A.I.S.Ship Static and Voyage related data, message
- 27. A.I.S.Ship Static and Voyage related data, message
- 28. A.I.S.1.3 A.I.S. plus points +++ Pilot use
- 29. A.I.S.1.3 A.I.S. display
- 30. A.I.S.1.4 A.I.S. minus points --- Not all
- 31. A.I.S.1.5 A.I.S. leading to complacencylink to 1.5.1
- 32. A.I.S.1.5 AIS options or short range +/- 25 nmvoluntary
- 33. A.I.S.1.5 A.I.S. is not L.R.I.T. Long Range Identification and Trackinglink to 1.5.3 L.R.I.T.link to 1.5.4 eulrit
- 34. A.I.S.Acknowledgements Maritime Education Platform (M.E.P.) www.maib.gov.uk Kelvin
- 35. Скачать презентанцию
A.I.S.Automatic Identification System (A.I.S.)
Слайды и текст этой презентации
Слайд 3A.I.S.
Topics
1.1 Gain an appreciation of the legal framework
1.2 Gain
an understanding of the basics of A.I.S. operation
the advantages of the system1.4 Understand the dis-advantages of the system
1.5 Understand the limitations of the system
Слайд 4A.I.S.
What is it?
Automatic Identification System
According to IMO
(MSC 74(69) annex 3)
In the ship to ship mode, to
assist in collision avoidanceAs a means for states to obtain information about ships
and their cargoes
As a VTS tool (ship-shore for vessel traffic management)
…. also
Radar target broadcasting, VTS waypoints/route plan,
Transmission of met or hydrographic info, Info about aids
to navigation, Psuedo aids to navigation
Слайд 5A.I.S.
1.1 Legal obligation
Chapter V
Safety of Navigation
Regulation 19 - Automatic Identification
System :
2.2.2.4 All ships > 300 gt same requirements
as Passenger ships, tankers and ships>500gt as of 1 July 2004 or
at first safety equipment survey after 1 July 2004.
Latest 31 December 2004
2.2.2.7 AIS in operation at all times
Слайд 6A.I.S.
1.2 Automatic Identification System (A.I.S.)
Why AIS ?
“Ship on my
port side, ship on my port side, get out of
my way!That’s why!
Слайд 9A.I.S.
1.2 A.I.S. a few basics
AIS is basically a VHF
(Very High Frequency) radio communications system,
operating on marine-band
frequencies 
Слайд 11In a TDMA system (like GSM) time is divided in
short timeslots. Every user has his own slot.
Usually a system
like this is managed by a central manager from a network. Principle based on TDMA
Time Division Multiple Access
Слайд 12Ships at sea have no network system available.
Solution is
found in the fact that GPS receivers have a very
accurate time signal availableEVERY AIS SYSTEM IS EQUIPTED WITH A GPS RECEIVER USED FOR TIME-SYNCHRONISATION.
Слайд 14Autonomous mode: System “looks ahead in time” in order to
give new (incoming) stations a chance to find a free
timeslotHOW?
All users on that frequency and that time frame include time of next transmission in their information message.
RESULT!
No incoming user is going to use that slot. Completely independent self organizing local system. (No shore/sat. management needed)
1. SOTDMA
Self Organized Time Division Multiple Access
Слайд 162. FATDMA
Fixed Access Time Division Multiple Access
Competent authorized user divides
the timeslots
(USUALLY VTS-AIS STATION) between users.
This can be useful to
increase the broadcast of dynamic information for selected users.The VTS station also reserves timeslots to send its own messages on a regular basis.
Слайд 173. Polling Mode
Also called interrogation mode.
One user asks another
user to send a certain message.
Слайд 18Technical description AIS station
2 types:
Class-A: Ships under SOLAS.
AIS station has to comply with IMO standard.
Class-B: Ships
not under SOLAS AIS station may comply with IMO standard.
Слайд 19Class-A station
(D)GPS: Used for time synchronization. Can be used as
a back-up for positioning. Position info is taken from bridge
navigation system.DGPS
POWER
UNIT
PROCESSOR
2VHF
Power Unit: 24 Volt from a UPS. (Battery)
Processor: Generates messages and handles info stream (input-output)
2 VHF Units. Both listening one sending
Слайд 20In some cases (North America) one can not use the
normal AIS frequencies. Solution: every AIS station has a channel 70
DSC receiver build in to take care of local AIS frequency change over.CLASS-B STATIONS
Слайд 23A.I.S.
Position report, message 1,2,3
MMSI
Position in latitude and longitude
Course Over Ground
Speed Over Ground
Position accuracy
Rate of
TurnHeading
Time stamp
Navigational status
Ship at anchor, not moving or < 3 knots 3 minutes
Ship at anchor, moving faster than 3 knots 10 seconds
Ship 0-14 knots 10 seconds
Ship 0-14 knots, changing course 3,3 seconds
Ship 14-23 knots 6 seconds
Ship 14-23 knots, changing course 2 seconds
Ship > 23 knots 2 seconds
1.2 A.I.S. information
Слайд 24A.I.S.
Ship Static and Voyage related data, message 5
MMSI
IMO
number
Call sign
Name
Type of ship
1.2 A.I.S. information
Слайд 25A.I.S.
Ship Static and Voyage related data, message 5
MMSI
IMO
number
Call sign
Name
Type of ship
Type of Electronic
Position Fixing Device1.2 A.I.S. information
Слайд 26A.I.S.
Ship Static and Voyage related data, message 5
MMSI
IMO
number
Call sign
Name
Type of ship
Type of Electronic
Position Fixing DeviceReference point for reported position
1.2 A.I.S. information
Слайд 27A.I.S.
Ship Static and Voyage related data, message 5
Present Static
Draught
Destination
ETA
Type of Cargo
1.2 A.I.S. information
Слайд 28A.I.S.
1.3 A.I.S. plus points +++
Pilot use – Communication with
VTS
Improved situational awareness
Overcome problem of “target
swapping” Unambiguous identification of radar targets
Ability to “see” around bends or behind a landmass
Detect vessels that might otherwise be hidden in another
vessel’s radar shadow
Real time information about other ship’s movements
(e.g., speed +/-, rate of turn)
Detect a change in another ship's heading without waiting
for ARPA calculations
Слайд 30A.I.S.
1.4 A.I.S. minus points ---
Not all ships/boats have AIS
fitted
AIS can be turned off
Need for regular
checking to ensure data transmitted is correct Possible display overload for OOW
Radar Sea Stabilised v AIS Ground Stabilised
Open system (can endanger vessel i.e. piracy, 9/11)
Слайд 31A.I.S.
1.5 A.I.S. leading to complacency
link to
1.5.1 A.I.S. assisted collision
Hyundai
Dominion and Sky Hope
21 June 2004 p.28
Слайд 33A.I.S.
1.5 A.I.S. is not L.R.I.T.
Long Range Identification and Tracking
link
to
1.5.3 L.R.I.T.
link to
1.5.4 eulrit
Слайд 34A.I.S.
Acknowledgements
Maritime Education Platform (M.E.P.)
www.maib.gov.uk
Kelvin Hughes
- The Nautical
Institute Seaways July, September 2009
www.mackaycomm.com
Heijden van der Wim
F.M.. AIS long-range ship reporting.IMO/IALA Seminar on AIS session 4 paper 3 extract
- EMSA
