NMEA 0183 V4.00
The Standard’s Evolution Continues
Lee A. Luft – USCG R&D Center
New Sentences
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Supporting the VDR
ŽProviding Detailed Alarm information
Supporting RADAR
z Supporting AIS Shore Stations
z Supporting AIS AtoN Stations
z Supporting Shipboard and AIS Shore
Stations
z Supporting Protocol Extensions
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L. Luft 05/09
NMEA 0183 V4.00
Slide 2
New Items
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A host of new Talker IDs for AIS
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A new Talker ID
ŽContaining a numeric value
ŽConfigurable per application
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New Status Flag for Sentences
ŽCommand vs Status
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NMEA 0183 V4.00
Slide 3
New Protocol Extension
Transport Sentences
z Annotate Sentences
z Group Sentences
z Enables Safe and Accurate Transport
z Use Shipboard and on Shore
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z TAG
L. Luft 05/09
Block
NMEA 0183 V4.00
Slide 4
What’s in the Works
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New Sentences supporting Galileo
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Expanded GNSS Sentences supporting
Galileo
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E-Navigation
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NMEA 0183 V4.00
Slide 5
New Sentences
Voyage Data Recorder
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AKD - Acknowledge Detail Alarm
Condition
ALA - Set Detail Alarm Condition
DOR - Door Status Detection
ETL-Engine Telegraph Operation Status
EVE – General Event Message
FIR – Fire Detection
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Slide 6
New Sentences
Voyage Data Recorder
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GEN – Generic Status Information
HSS-Hull Stress Surveillance Systems
PRC-Propulsion Remote Control Status
TRC-Thruster Control Data
TRD-Thruster Response Data
WAT- Water Level Detection
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Slide 7
New Sentence
Supporting RADAR
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TTD – Tracked Target Data
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Six-bit Encapsulation
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Up to Four Targets / 256 sentences
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NMEA 0183 V4.00
Slide 8
New Sentences
AIS Shore Stations
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ACM: Preparation and initiation of an AIS Base
Station addressed channel management
message (ITU-R M.1371 Message 22)
AGA: Preparation and initiation of an AIS Base
Station broadcast of a group assignment
message (Message 23)
ASN: Preparation and initiation of an AIS Base
Station broadcast of assignment VDL Message 16
BCG: Base Station configuration, General
command
BCL: Base Station configuration, Location
command
DLM: Data link management slot allocations for
Base Station
L. Luft 05/09
NMEA 0183 V4.00
Slide 9
New Sentences
AIS Shore Stations
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ECB: Configure broadcast rates for Base
Station messages with epoch planning
support
SPO: Select AIS device’s processing and
output
TFR: Transmit feed-back report
TSA: Transmit slot assignment
TSP: Transmit slot prohibit
TSR: Transmit slot prohibit status report
VSI: VDL signal information
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NMEA 0183 V4.00
Slide 10
New Sentences
AIS AtoN Stations
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ACF: General AtoN Station Configuration
Command
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ACG: Extended General AtoN Station
Configuration Command
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AFB: AtoN Forced Broadcast Command
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NMEA 0183 V4.00
Slide 11
New Sentences
AIS AtoN Stations
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AID: AtoN Identification Configuration
Command
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CBR: Configure Broadcast Rates for AIS
AtoN Station Message Command
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MEB: Message input for Broadcast,
Command
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TPC: Transmit slot Prohibit Command
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Slide 12
New Sentences
Shipboard & AIS Shore
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ADS: Automatic device status
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CEK: Configure Encryption Key Command
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COP: Configure the Operational Period,
Command
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DCR: Device Capability Report
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DDC – Display Dimming Control
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NMEA 0183 V4.00
Slide 13
New Sentences
Shipboard & AIS Shore
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FSR: Frame summary of AIS reception
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NAK: Negative Acknowledgement
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RST: Equipment ReSeT command
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SID: Set an equipment’s IDentification
command
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VER: Version
L. Luft 05/09
NMEA 0183 V4.00
Slide 14
TAG Block
Configuration
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CPC: Configure Parameter-code for UNIX time
parameter (c)
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CPD: Configure Parameter-code for destinationidentification parameter (d)
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CPG: Configure Parameter-code for the
sentence-grouping parameter (g)
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CPN: Configure Parameter-code for the linecount parameter (n)
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Slide 15
TAG Block
Configuration
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CPR: Configure Parameter-code for relative time
parameter (r)
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CPS: Configure Parameter-code for the source
identification parameter (s)
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CPT: Configure Parameter-code for general
alphanumeric string parameter (t)
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TBR: TAG Block Report
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TBS: TAG Block listener Source-identification
configuration command
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Slide 16
TAG Block
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Contents
ŽBackground
ŽInteroperability
ŽStructure
ŽCoding Rules
ŽParameter Code Dictionary
ŽInterpretation
ŽFiltering
ŽRules for transmission
ŽRules for reception processing
ŽConfiguration
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NMEA 0183 V4.00
Slide 17
TAG Block
Designed for Networks
z Useful on any interface
z Clarifies sentence relationships
z Provides sentence Linkage
z Does not transport equipment data
z Provides sentence related information
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NMEA 0183 V4.00
Slide 18
TAG Block
Reliably link …
z Accurately Identify Source …
z Accept Recognized Sources …
z Identify Timing relationships …
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NMEA 0183 V4.00
Slide 19
TAG Block
Accurately Identify Destination …
z Ignore Sentences …
z Allow annotation during transport …
z Detect Loss …
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Slide 20
TAG Block
Interoperable with Legacy 0183 Equip
z Considers Existing Rules
z Implemented Proper Decoding
z Device has Sufficient Buffer Space
z Device Handles Valid / Invalid Chars
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NMEA 0183 V4.00
Slide 21
TAG Block
Basic Structure
\s:r003669961,c:1153612428*77\
Begin TAG Block Delimiter - Back Slash Character “\”
Parameter Code
Code Delimiter
Parameter Value
Field Delimiter
Standard 0183 Checksum
End TAG Block Delimiter - Back Slash Character “\”
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Slide 22
TAG Block
2 Line Example
\g:1-2-1234,s:r3669961,c:1120959341*hh\!ABVDM,1,1,1,B,…..,0*hh
\g:2-2-1234*hh\$ABVSI,r3669961,1,013536.96326433,1386,-98,,*hh
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NMEA 0183 V4.00
Slide 23
TAG Block
3 Line Example
\g:1-3-1234,s:r3669961,c:1120959341*hh\
\g:2-3-1234*hh\!ABVDM,1,1,1,B,.....,0*hh
\g:3-3-1234*hh\$ABVSI,r3669961,1,013536.96326433,1386,-98,,*hh
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Slide 24
TAG Block
Parameter Code Dictionary
c
UNIX time
c:positive integer
d
Destination-identification
d:alphanumeric string (15 char. maximum)
g
Sentence-grouping
g:numeric string
n
Line-count
n:positive integer
r
Relative time
r:positive integer
s
Source-identification
s:alphanumeric string (15 char. maximum)
t
Text-string
t:valid character string
Room for growth
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NMEA 0183 V4.00
Slide 25
TAG Block
Parameter Code c
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Unix (POSIX) Time
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Positive Integer
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Resolution down to milliseconds
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CPC Sentence
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TAG Block
Parameter Code d
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Destination
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Alphanumeric String
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Unique Identifier (AIS Applications)
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Multiple destinations possible
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CPD Sentence
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TAG Block
Parameter Code g
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Sentence Grouping
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Numeric String
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Always First
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Two or More Lines
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CPG Sentence
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TAG Block
Parameter Code n
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Line Count
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Positive Integer
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Incremented
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CPN Sentence
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TAG Block
Parameter Code r
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Relative Time
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Positive Integer
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Seconds or Manufacturer Defined
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CPR Sentence
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NMEA 0183 V4.00
Slide 30
TAG Block
Parameter Code s
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Source Identification
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Alphanumeric String
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15 Char
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CPS Sentence
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Slide 31
TAG Block
Parameter Code t
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Text String
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Valid Character String
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CPT Sentence
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Slide 32
TAG Block
Query Sentences with TAG Block
Query using a TAG Block:
\s:ControlPC1,d:A003669955,c:1149654649*58\$UPABQ,VER*3A
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Response to Query using a TAG Block:
\s:A003669955,d:ControlPC1*2C\$ABVER,1,1,,AB,XYZ,A003669955,
XYZ0001,Beta,1,1*00
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Slide 33
TAG Block
Configuration Reporting
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TBR – TAG Block Report Request
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Two sides – Listener & Talker
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All Parameter Codes Active.
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All Parameter Codes Supported
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All Parameter Codes Inactive but Supported
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NMEA 0183 V4.00
Slide 34
TAG Block
Source Configuration
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TBS – TAG Block Listener Source-identification
Configuration Command
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One side – Listener
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Add
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Remove / Remove All
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Report configured Sources
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NMEA 0183 V4.00
Slide 35
SUMMARY
z NMEA
0183 V4.00 is Still Evolving
z Meeting
new challenges
z Supporting
z Both
L. Luft 05/09
new equipment
On Ship or On Shore
NMEA 0183 V4.00
Slide 36
SUMMARY
z Supports
Advanced
communications through use of
TAG Block
z TAG
Block is Powerful and
Extensible
z Used
Today in the USCG’s
Nationwide AIS Increment 1
Network
L. Luft 05/09
NMEA 0183 V4.00
Slide 37
NMEA 0183 V4.00
Evolving to meet industry’s needs
L. Luft 05/09
NMEA 0183 V4.00
Slide 38