ACR Electronics AIS Installation

Y1-03-0204 Rev. L

Please read this first!

Warning:

Although ACR strives for accuracy in all its publications; this material may contain errors or omissions, and is subject to change without prior notice. ACR shall not be made liable for any specific, indirect, incidental or consequential damages as a result of its use. ACR components may only be used in safety of life devices or systems, with the express written approval of ACR, as the failure of such components could cause the failure of the ACR device or system. If these fail, it is reasonable to assume that the safety of the user or other persons may be endangered.

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1 GENERAL INTRODUCTION ................................................................................ 5

NAUTICAST™ Installation Manual Index Page Number

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1.1 Description of AIS 5

1.2 AIS in an Operational Environment 5

1.3 AIS Networks 7

1.4 Carriage Requirement 8

1.4.1 Chapter V (Safety of Navigation) Regulation 19, of the SOLAS Convention. ................................................... 8

1.4.2 Accelerated Implementation of AIS: ................................................................................................................. 8

2 NAUTICAST™ ...................................................................................................... 9

2.1 System Overview 9

3 INSTALLATION .................................................................................................. 10

3.1 Installation Requirements 10

3.2 Installation Overview 10

3.3 General Interface Description 12

3.4 Interface NMEA Description: 13

3.4.1 Sensor - Interface CH1, CH2, CH3 ................................................................................................................ 13

3.4.2 ECDIS – Presentation Interface CH 4 ............................................................................................................ 13

3.4.3 Pilot Port CH 5 .............................................................................................................................................. 14

3.4.4 Long Range CH 8 ......................................................................................................................................... 14

3.4.5 DGPS – DGNSS Channel 9 .......................................................................................................................... 15

3.4.6 Alarm Circuit – BIIT Channel 10 .................................................................................................................... 15

3.4.7 Proprietary Sentences ................................................................................................................................... 15

3.5 Sensor Interface Definitions 16

3.5.1 Talker drive circuits ....................................................................................................................................... 16

3.5.2 Listener Receiver Circuits .............................................................................................................................. 16

3.5.3 Electrical isolation ......................................................................................................................................... 16

3.5.4 Maximum voltage on the bus ......................................................................................................................... 16

3.5.5 Data transmission ......................................................................................................................................... 16

3.6 Sensor notes 17

3.7 Sensor Hardware Installation: 18

3.7.1 Installation of an RS422 serial interface:........................................................................................................ 18

3.8 Sensor Software Configuration 19

3.8.1 Introduction ................................................................................................................................................... 19

3.8.2 Set up Sensor Speed, Checksum (CRC) and NMEA Talker and Sentence ID ............................................... 19

3.8.3 Real-Time Analysis of NMEA Data Streams .................................................................................................. 22

3.8.4 Sensor Monitoring for Problem Analysis ........................................................................................................ 24

3.8.5 Priority Handling of Sensor Sentence ............................................................................................................ 25

3.8.6 Supported NMEA-0183 Sentences ................................................................................................................ 25

3.8.7 Calculated Values ......................................................................................................................................... 29

3.8.8 Versions of NMEA Sentences ....................................................................................................................... 29

3.9 Pin-Description AIS-Cable / Socket 50-Pins: 30

3.10 Pin-Description AIS-Connector: 31

3.11 Installation of VHF / GPS Antennas 32

3.11.1 VHF Antenna Installation ............................................................................................................................... 32

3.11.2 GNSS Antenna installation ............................................................................................................................ 33

3.11.3 Power Supply ................................................................................................................................................ 36

4 STARTING THE NAUTICAST™......................................................................... 37

4.1 Entering the MMSI and IMO Numbers: 37

4.2 Entering Voyage Related Data: 39

4.3 Entering Ship Settings: 40

4.4 Service and User Passwords: 42

5 TROUBLESHOOTING ........................................................................................ 45

5.1 Reading and understanding Alarms: 45

5.2 Alarm Codes 47

5.3 Text Messages 48

6 ACCESSORIES .................................................................................................. 49

7 TECHNICAL INFORMATION ............................................................................. 50

8 CONTACT AND SUPPORT INFORMATION ..................................................... 51

9 APPENDIX ......................................................................................................... 52

9.1 Samples for battery calculation 52

9.1.1 Typical Installation ......................................................................................................................................... 52

9.2 Drawings and Approvals 53

History of Changes

Date

Version

Rev.

Status

Comments

Responsible

2003-04-30

1.0.2

Released

Dimensional drawings as Annex Wheelmark Certificate as Annex

A. Lesch

2003-06-30

1.0.3

Released

Amendments for: Power consummation, Troubleshooting, grounding, external fuse, battery calculation in Appendix

B. Werner

2004-06-03

1.0.4

Released

New Approvals, new pictures

B. Werner

2004-07-09

1.0.5

Draft

Sensor Configuration

A. Lesch

2004-07-14

1.0.5.

Draft

ROT

Gruber

2004-07-15

1.0.5.

Released

Sensor Configuration

Werner/Moore

2005-11-01

1.0.6

Released

GPS-Antenna, editorial work

A. Lesch

2006-05-24

1.0.7

Released

Editorial work

M.D‟Arcangelo

2006-11-07

1.0.8

I & J

Released

Character Change Out

M.D‟Arcangelo

2009-07-28

1.0.9

Released

ITU-R M.1371-3 Updates

B.Werner

2009-11-20

1.10

Released

Editorial work

B. Werner

Date

AIS software Version

Status

Comments

Responsible

2009-04-12

2.0.S105.X408

Test version for Approval tests

A. Lesch

2009-07-28

2.0.S105.X714

Released

New GPS Module. New way to store ship dimensions.

A. Lesch

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Software dependencies

This revision of the Manual is valid for the Software version (s) below stated and future versions unless otherwise noted (ref.: www.acrelectronics.com / www.acr-europe.com .

1 General Introduction

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IMPORTANT: IMO REGULATIONS MANDATE that after the physical installation has been successfully completed, all ships data and settings be entered into the AIS transponder. See Section 4 for further instructions.

1.1 Description of AIS

What does the abbreviation AIS stand for?

AIS stands for: “Automatic Identification System”

What is AIS?

According to IALA regulations, AIS is defined as follows:

Very simply, the AIS is a broadcast Transponder system, operating in the VHF maritime

mobile Band. It is capable of sending ship information such as identification, position course, speed and more, to other ships and to shore. It can handle multiple reports at rapid update rates and uses Self-Organizing Time Division Multiple Access (SOTDMA) technology to meet these high broadcast rates and ensure reliable and robust ship to ship operation.

What are the performance standards of AIS?

The IMO defines the performance standards as follows:

- Ship to Ship working

- Ship to Shore working, including Long Range Application

- Automatic and continuous operation

- Provision of information messaging

- Utilization of maritime VHF channels

Which modules make up an AIS-Transponder?

The Modules:

- DGPS / GPS receiver

- VHF Radio

- Antenna

- Computer (CPU)

- Power Supply

Appropriate application software connects the individual modules.

In which modes does AIS function?

AIS are required to function flawlessly in a variety of modes. The relevant regulations require:

The system shall be capable of

- An "autonomous and continuous" mode for operation in all areas. This mode

shall be capable of being switched to/from one of the following alternate modes by a competent authority;

- An "assigned" mode for operation in an area subject to a competent authority

responsible for traffic monitoring such that the data transmission interval and/or time slots may be set remotely by that authority;

- A "polling or controlled" mode, where the data transfer occurs in response to

interrogation from a ship or competent authority.

1.2 AIS in an Operational Environment

This illustration depicts a typical AIS System, where two or more AIS

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equipped vessels (and shore based systems) are automatically communicating with each other.

On the bottom, a typical NAUTICAST™ installation in a common environment is shown. The NAUTICAST™ is connected to the vessels emergency power supply, and in connection with the VHF, and GPS-Antennas, the minimal requirements for Transponder operation are fulfilled.

Both vessels in the above illustration are equipped with a NAUTICAST™ (or any other certified AIS-Transponder). Due to “Time – Synchronization” they use the same organization of free and allocated windows (Slots) in the shared VHF Data Link (this

method is called “Self Organized Time Division Multiple Access”) to send and receive

messages.

Without the necessity of any active interaction, both vessels know exactly who or what is cruising nearby and where the individual object is heading.

1.3 AIS Networks

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The scenario below shows a full AIS coverage area (including all applications and complete shore infrastructure).

The Carriage Requirement currently applies exclusively to SOLAS Vessels, but following the current international discussions on maritime security; it is common understanding that other possible AIS users will follow very soon. Shore Based infrastructure will be among the first groups to become AIS equipped.

1.4 Carriage Requirement

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1.4.1 Chapter V (Safety of Navigation) Regulation 19, of the SOLAS Convention.

IMO regulations require sea vessels from a size of 300 GT (Gross Tonnage) in international and 500 GT in national waters to be equipped with an AIS-Transponder. The implementation of this legislation began on July 1, 2002 and will be enforced in the following stages:

July 2002 for all vessels built from this period onwards July 2003 for all passenger ships and all tankers which were built before July 1, 2002 July 2004 for all ships of 50,000 GT and above which were built before July 1, 2002 July 2005 for all ships from 10,000 GT up to under 50,000 which were built before

July 1, 2002

July 2006 for all ships from 3,000 GT up to under 10,000 which were built before

July 1, 2002

July 2007 for all ships from 300 GT up to under 3,000 which were built before

July 1, 2002

July 2008 for all other ships which do not travel in international waters and were built

before July 2002

In some cases, exemptions may be granted to such ships, which will be taken off sea within 2 years of legislation coming into effect.

Refer to IMO Recommendation ITU-R M.1371-1 and IALA-AIS-Guidelines

1.4.2 Accelerated Implementation of AIS:

ANNEX AMENDMENTS TO THE TO THE INTERNATIONAL CONVENTION FOR THE SAFETY OF LIFE AT SEA, 1974 AS AMENDED CHAPTER V - SAFETY OF NAVIGATION

Regulation 19 - Carriage requirements for ship borne navigational Systems and equipment states:

1 The existing subparagraphs .4, .5 and .6 of paragraph 2.4.2 are replaced by the following:

“4 in the case of ships, other than passenger ships and tankers, of 300 gross tonnage and upwards, but less than 50,000 gross tonnage, not later than the first safety equipment survey' after 1 July 2004 or by 31 December 2004, whichever occurs earlier; and”

2 The following new sentence has been added at the end of the existing subparagraph

7 of paragraph 2.4;

“Ships fitted with AIS shall maintain AIS in operation at all times except where

international agreements, rules or standards provide for the protection of navigational information.”

Refer to the International Convention for the Safety of Life at Sea, 1974 (SOLAS), held at IMO, 9-13 December 2002

2 NAUTICAST™

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2.1 System Overview

Unlike other AIS devices, the NAUTICAST™ combines all required functions into one cabinet. Additionally, the NAUTICAST™ gives the operator a number of additional features (easy mounting & installation, environmental protection and smallest dimensions).

3 Installation

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3.1 Installation Requirements

General Requirements

Please note that international conventions, regulations, instructions and guidelines have to be adhered to when installing the NAUTICAST™.

The following points must be observed before installation can commence:

- Permission by the local authority to install such a device must be granted.

- Trained service personnel must undertake the installation.

- The NAUTICAST™ must be fitted in a suitable place on the bridge.

- The VHF and GPS Antennas must be installed in a suitable position, where excellent

reception conditions apply (refer to Chapter 3.11 Installation of VHF antenna)

- All available interfaces must be installed.

- The vessels power supply must suffice, and the GMDSS power supply has to be used.

- Installation of the pilot plug in conning position (close to the pilot working place).

3.2 Installation Overview

Survey

AIS is considered part of the ship‟s radio station and is surveyed together with radio

installation. Surveys on SOLAS Convention ships should be carried out in accordance with the rules laid down in IMO Res. A 746(18) "Survey Guidelines under the harmonized system of survey and certification" (R) 8, and "Protocol of 1988 relating to the International Convention for the Safety of Life at Sea, 1974."

The NAUTICAST™ consists of one unit, which integrates all necessary modules. Step-by-Step Installation Procedure:

Mount the NAUTICAST™ close to ships operation workstation for traffic surveillance

and maneuvering.

Use the VHF adapter cable (P/N 2612) together with the VHF plug and TNC plug to

connect the VHF and GPS antenna cables and antennas.

The sensors, ECDIS, PC, pilot case, long range devices and auxiliary displays can be

connected to the NAUTICAST™ cabinet by the AIS cable by means of the connection box. The device is driven by a 24V DC 7A supply, which is connected to the power terminal at the connection box. The AIS should be connected to an emergency power source. A battery capacity calculation together with GMDSS-equipment is needed! Please refer to Appendix 9.1 for examples of battery capacity calculations.

After performing these steps, the NAUTICAST™ automatically starts operation. The NAUTICAST™ has a ground terminal which has to be connected to ship ground. Now configure the required initial system parameters according to Chapter 4 “Starting

the NAUTICAST™”.

NAUTICAST™ Connection Diagram

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Note: The ACR connection box includes a fuse of 6,3A. If it is not used, then the unit has to be protected against high current by an external slow blow fuse of 6,3A.

Components and Interfaces

Interface

Designation

Speed

Direction

Sensor 1

CH 1

4800bps or 38400bps

Input

Sensor 2

CH 2

4800bps or 38400bps

Input

Sensor 3

CH 3

4800bps or 38400bps

Input

ECDIS

CH 4

38400bps

Input/Output

PILOT

CH 5

38400bps

Input/Output

LONG RANGE

CH 8

38400bps

Input/Output

DGPS (RTCM SC104)

CH 9

9600bps

Input/Output

ALARM CIRCUIT

CH 10

Dry relay contact (power off and alarm state closed)

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The diagram below illustrates which devices can be connected to the NAUTICAST™. For a detailed description of sensor connecting e.g. an existing Gyro to the NAUTICAST™ refer to Chapter 3.7 “Sensor Installation”.

3.3 General Interface Description

3.4 Interface NMEA Description:

Sentence Formatters

Direction

Used Fields

ABK

UAIS Addressed and binary broadcast acknowledgement

out

All fields are provided for Input and Output.

For further information please refer to IEC 61993-2 / NMEA 0183 HS V3.0 for detailed field information.

ACA

AIS Channel assignment message

in / out

ACK

Acknowledge Alarm

AIR

UAIS Interrogation Request

ALR

Set Alarm State

out

ABM

UAIS Addressed binary and safety related message

BBM

UAIS Broadcast Binary Message

DSC

Digital Selective Calling Information

out

DSE

Expanded Digital Selective Calling

out

DSI

DSC Transponder Initialize

out

DSR

DSC Transponder Response

out

LRI

UAIS Long-Range Interrogation

out

LRF

UAIS Long-Range Function

out

SSD

Station Static Data

TXT

Text Transmission

out

VSD

Voyage Static Data

VDM

UAIS VHF Data-link Message

out

VDO

UAIS VHF Data-link Own-vessel report

out

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3.4.1 Sensor - Interface CH1, CH2, CH3

Refer to Chapter 3.8 for detailed information on Sensor - Interface and Configuration.

3.4.2 ECDIS – Presentation Interface CH 4

3.4.3 Pilot Port CH 5

Sentence Formatters

Direction

LRI

UAIS Long Range Interrogation

Input

LRF

UAIS Long-Range Function

Input / Output

LR1

UAIS Long-Range Reply Sentence l

Output

LR2

UAIS Long-Range Reply Sentence 2

Output

LR3

UAIS Long-Range Reply Sentence 3

Output

Field Information: All fields are provided for input and output. For further information please refer to IEC 61993-2 / NMEA 0183 HS V3.0 for detailed field information.

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The used sentence formatters for the pilot plug are the same as those listed for the ECDIS port.

Note: A pilot input/output port is part of an AIS Class A installation. A plug connected to this

port should be installed on the bridge near the pilot‟s operating position, so that a pilot can

connect a Personal Pilot Unit (PPU) if required. Also, a power connector for the pilot unit should be available nearby.

The pilot plug should be configured as follows: (Refer to SUB-COMMITTEE ON SAFETY OF NAVIGATION NAV48/18 2.4.2002)

AMP/Receptacle (Square Flanged (-1) or Free-Hanging (-2)), Shell size 11, 9-pin, Std. Sex 206486-1/2 or equivalent with the following connections:

- Tx A (out-) is connected to Pin 1

- Tx B (out+) is connected to Pin 4

- Rx A (in-) is connected to Pin 5

- Rx B (in+) is connected to Pin 6

- Shield is connected to Pin 9

3.4.4 Long Range CH 8

The AIS long range function requires a compatible long range communication system (e.g. Inmarsat-C or MF/HF radio as part of GMDSS). This connection is required in order to activate the long range function of the AIS. Its input/output port must meet the IEC 61162-2 requirements.

3.4.5 DGPS – DGNSS Channel 9

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Field / Protocol information: All fields are provided with further information; please refer to ITU-R M.823-2 / RTCM SC 104 for detailed field information.

3.4.6 Alarm Circuit – BIIT Channel 10

The AIS requires that an alarm output (relay) must be connected to an audible alarm device or the ships alarm system, if available.

Alternatively, the BIIT (built-in integrity test) alarm system may use the alarm messages output on the presentation port (ECDIS Port Channel 5), provided the ECDIS alarm system is connected and AIS compatible.

3.4.7 Proprietary Sentences

The proprietary ACR NMEA sentences have the NMEA registered manufacture talker ID “NAU”. The $PNAU sentences are an addition to the standard sentences and offer other

manufactures full remote control to the Transponder. The NMEA interface developer‟s

manual includes the full description of how to use the proprietary ACR manufacturer sentences.

List of ACR related proprietary sentences: Proprietary NMEA-Sentences $PNAU

MID – Mobile (MMS) Id ASD – Advanced Ship Data RCS – Read Configuration Settings STO - Set Transponder Options

TSI - Transponder State Information SCR - Sensor Configuration Request SCA - Sensor Configuration Acknowledge SCD - Sensor Configuration Data SCM - Sensor Configuration Mode AIQ - Request status information from the Transponder

3.5 Sensor Interface Definitions

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All interface ports of the NAUTICAST™ comply with IEC-61162-1 / -2 and NMEA-0183 HS

3.0 specifications (aligned to RS422 parameters).

3.5.1 Talker drive circuits

The maximum output current is I requirements of ITU-T V.11.

3.5.2 Listener Receiver Circuits

Multiple listeners may be connected to a single talker. Optional termination resistors (120Ohm) for the input lines are provided in the connection box. The input terminals A, B and C are electrically isolated from the remaining electronics of the listening device. The input impedance is 30kOhm between A and B lines, disregarding the connection of termination resistors. The minimum input voltage is ±0,3V. The listener's receiver circuit complies with ITU-T V.11.

3.5.3 Electrical isolation

There are no direct electrical connections between the signal lines A and B. The signal ground C must not be connected to the ship main ground or power line! This isolation is in accordance with IEC 60945.

= 50mA on each port. The drive circuit meets the

max

3.5.4 Maximum voltage on the bus

The maximum applied voltage between signal lines A and B and between either line and ground C is in accordance with ITU-T V.11. For protection against incorrect wiring and for unintended connection to older TALKER models, all receiver circuit devices are capable of withstanding 15 V between both lines and signal ground for an indefinite period.

3.5.5 Data transmission

Data is transmitted in serial asynchronous form in accordance with IEC 61162-1. The first bit is a start bit, and is followed by data bits, whereby the least significant bit is first. The following parameters are used:

– Baud rate 38 400 (bits/s) 9600 (bits/s) 4 800 (bits/s) – Data bits 8 (D7 = 0), parity none – Stop bits 1.

3.6 Sensor notes

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External Sensor

The AIS has interfaces (configurable as IEC 61162-1 or 61162-2) for position, bottom track (BT) speed, heading and rate of turn (ROT) sensors. In general, sensors installed in compliance with other carriage requirements of SOLAS Chapter V should be connected to the AIS System.*1. The sensor information transmitted by AIS should be the same information being used for navigation of the ship. Interfacing problems might occur if the existing on board sensors do not have serial (IEC 61162) outputs. A converter is needed to translate the non conform data to IEC 61162 – sensor data. For Example ACR Converter type P/N 2641.

*1) The fact that AIS is fitted on board a vessel does NOT entail the need to install additional sensors

other than those stated in the carriage requirements.

External GPS

GNSS position sensors normally have IEC 61162 outputs suitable for direct AIS interfacing. However, it is important to note that:

• The Geodetic Datum of the position data is transmitted by the sensor in WGS84 so that an

IEC 61162 DTM sentence is configured.

• AIS is able to process two reference points for its antenna position, one for external, and

one for an internal sensor. If more than one external reference point is used, the appropriate information needs to be input to the AIS, so that the reference point information is suitably adjusted.

External Heading

A gyrocompass providing heading information is a mandatory sensor input to the AIS. A converter unit (synchro or step-signal converter to NMEA 0183 v.3.0 for example ACR Converter type P/N 2641 will be needed for AIS connection in the case that the ship‟s gyrocompass does not provide IEC 61162 output.

External Speed and Course

If a bottom track (BT)log for speed over ground (SOG) is available, it may be connected. A converter (for example Raytheon converter type: 133-812) is needed if the BT-log does not provide IEC 61162 outputs

External Rate of Turn

Not all ships will carry a Rate-Of-Turn (ROT) indicator according to IMO A.526. However, if a rate-of-turn indicator is available and it includes an IEC 61162 interface, it should be connected to the AIS. If ROT information is not available from a ROT indicator, it may (optionally) be derived from heading information through:

• The gyrocompass itself,

• An external converter unit (see Heading),

• The AIS itself (calculated ROT).

3.7 Sensor Hardware Installation:

AIS Conncetion Box

Listener (other equipment)

A B C (GND)

- IN

+ IN

G1 (or 2,3)

Shields

A B C (GND)

Talker (e.g.: GPS)

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3.7.1 Installation of an RS422 serial interface:

In most cases, the output from a GPS is already being used by existing navigation equipment. It is possible to split an RS 422 output for two devices. If the signal becomes too low, then an NMEA splitter has to be used.

Example for single talk multi-listener connection:

Each interface on the Transponder is a RS422 serial interface The shield or ship main ground should not be connected with the signal ground (GND).

3.8 Sensor Software Configuration

N 1o19' E 0o13' |1> N/A|2>0.00|3>0.10nm |--------------------------------- | 5. Transponder Configuration

-----| | | +- 1. Change User Password View | +- 2. Region Settings | +- 3. Alarm Settings

-----| +- 4. Interrogation Settings | +- 5. Sensor Settings Msg. | |

-----| | Displ|

---------------------------------------NUM|Select->| | |<-Back

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3.8.1 Introduction

The AIS NAUTICAST™ requires a connection to various sensor devices. Sensor Configuration should enable compatibility with existing navigation devises aboard any vessel. This chapter deals with several ways to configure the NAUTICAST™ and to comply with the requirements of the specific sensor interfaces.

Configuration and display is visible on two screens of the Sensor Configuration Menu. The NAUTICAST™ offers the following configuration options:

Set up data speed 4800/9600/38400 baud. Monitor the connected sensor inputs for each sensor channel. Verify and edit the Sensor Configuration on the display screen. Analyze the information received from the connected sensor devices. Produce an electronic installation report. Configuration of various NMEA protocols.

The individual options may be repeated until the required configuration for the connected sensor devices is achieved. During the configuration process, the NAUTICAST™ is not operational.

3.8.2 Set up Sensor Speed, Checksum (CRC) and NMEA Talker and Sentence ID

Sensor configuration is available in the AIS software versions higher than 2.0.1.0. It is

accessible via the new submenu „5. Sensor Settings‟ in the Service Password protected

menu: „5. Transponder Configuration‟.

After accessing the Sensor Configuration menu this main configuration screen is active:

N 1o19' E 0o12' |1> N/A|2>0.00|3>0.10nm *********** Sensor Settings ************ BaudRate Sensor1:< 4800> CRC: auto Ignored:$HC---$-----$-----$----- $-----$-----$-----$----- 1>Start Monitor> BaudRate Sensor2: 4800 CRC: auto Ignored:$HC---$-----$-----$----- $-----$-----$-----$----- 2>Start Monitor> BaudRate Sensor3: 38400 CRC: auto Ignored:$HC---$-----$-----$----- $-----$-----$-----$----- 3>Start Monitor>

--------------------------------------- | Save | Default | Analyze | Back

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A variety of possible settings can be made on this screen. It is possible to navigate from one configuration item to another by pressing the up and down arrow keys. Value will be changed by pressing the left and right arrow key. The fastest way to jump from one sensor to another is by pressing numbers 1 – 3 on the keyboard. (Refer also to chapter 3.8.4 for specific information on a particular sensor)

The following changes can be undertaken for each of the sensor interfaces (by left and right arrow key):

o Changing the baud rate (4800, 9600 and 38400) to the required speed of the sensor

device by pressing the right or left arrow keys.

o Enabling or disabling CRC-Checking by pressing the right or left arrow keys.

<auto> Sentence will be accepted with or without Checksum <on> Checksum must be available

o Configuring NMEA sentences, which the system filters and ignores

There are 5 entry fields where characters can be input. Two positions of each entry field are for Talker-Id, and three for Sentence-Id, which represents the NMEAsentence which should be ignored by the system.

(i.e. the default setting: “HC“ means ignore all NMEA records starting with HC on this particular sensor interface)

Note: HC stands for magnetic north and should be ignored.

For Example:

--VTG means all VTG sentence IDs will be ignored like GPVTG, GNVTG… VW--- means all VW Talkers ID from speed log will be ignored like VWVHW, VWVBW

Changes on this screen can be saved by pressing the “Save” – Button [M5]. The factory settings can be recalled be pressing the “Default” – Button [M6]. Returning back to the previous screen is possible by pressing the “BACK” – Button [M8].

The next step is the analysis of the current sensor interface settings, which can be undertaken with the “Analyze” – Button [M7]. After pressing this button, the real-time analysis of the sensor data stream begins. This process takes around 30 seconds and is visible on a temporary screen.

*********** Sensor Settings ************

************************************** * * * Please stay... * * analyze Sensor 1..3 * * this takes max. 30sec. * * * **************************************

--------------------------------------- | | | | Back

N 1o18' E 0o12' |1> N/A|2>0.00|3>0.10nm ************ Sensor Analyze ************ Analyze: Date Src Used CHx Update Position: Ext >$GPGLL 1,2 820ms : Int $GPGGA i,1 273ms : Int $GPRMC i,1,3 656ms UTC : Ext $GPGLL 1,2 820ms : Int $GPGGA i,1 273ms : Int $GPRMC i,1,3 656ms Date : Int $GPRMC i,1,3 656ms COG : Ext $GPVTG 1,2 792ms : Int $GPRMC i,1,3 656ms SOG : Ext $VDVBW 1,2 820ms>

--------------------------------------- | Select | | | Back

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It is possible to interrupt this process by pressing the “Back” - Button [M8]. After the analysis is complete, the Transponder will list the data used for the AIS operation.

3.8.3 Real-Time Analysis of NMEA Data Streams

N 1o19' E 0o13' |1> N/A|2>0.00|3>0.10nm ********* Details on Sentence ********** $VDVBW ext. on <Ch1> :SOG

Sentence : VBW Talker : VD Update Rate: 1093ms ChkSum : Ok Used Fields: 4,5,6 4:LonGS 5:TraGS 6:Data Valid

[09:21:53,062] $VDVBW,19.63,-01.32,V,19. 63,-01.33,A*47 [09:21:51,859] $VDVBW,19.63,-01.31,V,19. 63,-01.33,A*44

--------------------------------------- | | Next | | Back

N 1o19' E 0o13' |1> N/A|2>0.00|3>0.10nm ************ Sensor Analyze ************ Analyze: Date Src Used CHx Update Position: Ext $GPGLL 1,2,3 898ms : Int $GPGGA i,1,3 291ms : Int $GPRMC i,1,3 812ms UTC : Ext $GPGLL 1,2,3 898ms : Int $GPGGA i,1,3 291ms : Int $GPRMC i,1,3 812ms Date : Int $GPRMC i,1,3 812ms COG : Ext $GPVTG 1,2,3 898ms : Int $GPRMC i,1,3 812ms SOG : Ext >$VDVBW 1,2,3 934ms>

--------------------------------------- | Select | | | Back

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After these configuration procedures, an overview of the current Sensor Software Configuration has been attained.

This filtered NMEA data can be analyzed further. The data source is shown on the screen below. The source can be internal or external devices, the received NMEA sentence and the channel where this data was identified (Sensor 1, 2, 3 or calculated), as well as the measured update rate.

To view any NMEA sentence in detail, the required data line can be selected by pressing [Enter]. The detailed information on this source appears as follows:

It is possible to scroll through the sources of this sensor interface channel by pressing the

“Next” –Button [M6]. The previous menu can be accessed at any time by pressing the “Back” – Button [M8].

Each time the analysis process for sensor configuration is undertaken; a trace file (see below)

$PNAUSCA,4800,4800,4800,1 $PNAUSCD,------------ Sensor Settings -----------$PNAUSCD,Date : 06/22/2004 08:57:05 $PNAUSCD,Hardware: AIS Transponder Class A $PNAUSCD,Software: 2.0.0.11R3 $PNAUSCD,SW Stamp: Jun 14 2004 11:46:10 $PNAUSCD,LAT : N 53o30.123' LON : E 10o 1.234' $PNAUSCD,Heading : ExtHDT:0o iRot : 0o/min $PNAUSCD,IMO No. : 303174162 MMSI: 2222222 $PNAUSCD,ShipName: U4 CS : D11233 $PNAUSCD,ShipType: Pilot vessel $PNAUSCD,Length : 220m Beam: 43m $PNAUSCD,RefPtExt: A200 B20 C10 D33m $PNAUSCD,RefPtInt: A190 B30 C20 D23m $PNAUSCD,Cargo : N/A or harmless $PNAUSCD,Draught : 24.8m $PNAUSCD,Dest. : CASABLANCA $PNAUSCD,ETA : 10/13 12:31 $PNAUSCD,NavStat : Engaged in fishing $PNAUSCD,EPFDType: GPS $PNAUSCD,------------ Sensor Settings -----------$PNAUSCD,BaudRate Sensor1: 4800 CRC:auto $PNAUSCD,Ignored:$-----$-----$-----$----$PNAUSCD, :$-----$-----$-----$----$PNAUSCD,BaudRate Sensor2: 4800 CRC:auto $PNAUSCD,Ignored:$HC---$-----$-----$----$PNAUSCD, :$-----$-----$-----$----$PNAUSCD,BaudRate Sensor3: 4800 CRC:auto $PNAUSCD,Ignored:$HC---$-----$-----$----$PNAUSCD, :$-----$-----$-----$----$PNAUSCD,------------ Sensor Settings -----------$PNAUSCD,Analyze: $PNAUSCD,Date Src Used CHx Update $PNAUSCD,Position: Ext $GPGLL 1 955ms $PNAUSCD,UTC : Int $GPGGA i 952ms $PNAUSCD,Date : Int $GPRMC i 951ms $PNAUSCD,COG : Ext $VDVBW 1 Calc 952ms $PNAUSCD,SOG : Ext $VDVBW 1 Calc 952ms $PNAUSCD,Heading : Ext $TIHDT 1 953ms $PNAUSCD,ROT : Ext $TIROT 1 949ms $PNAUSCD,------------ Sensor Settings -----------$PNAUSCD,Monitoring Sensor Channel 1 $PNAUSCD,[08:56:35,000] $TIROT,0.0,A $PNAUSCD,[08:56:35,255] $GPGLL,5330.1234,N,01001 $PNAUSCD,.2345,E,141800.00,A,A $PNAUSCD,[08:56:35,410] $GPVTG,350.0,T,,M,10.0,N

... ...

$PNAUSCD,[08:49:50,806] $TIHDT,359.9,T $PNAUSCD,------------ ROT : -----------------$PNAUSCD,$TIROT ext. on Ch1 :ROT $PNAUSCD, $PNAUSCD,Sentence : ROT Talker : TI $PNAUSCD,Update Rate: 949ms ChkSum : N/A $PNAUSCD,Used Fields: 1,2 $PNAUSCD, 1:Rate Of Turn $PNAUSCD, 2:Data Valid $PNAUSCD, $PNAUSCD,[08:49:52,900] $TIROT,0.0,A $PNAUSCD,[08:49:51,950] $TIROT,0.0,A $PNAUSCD,[08:49:51,001] $TIROT,0.0,A $PNAUSCD, $PNAUSCD,------------ Sensor Settings ------------

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is automatically generated and sent out to the ECDIS-Port. This output can also be used as a Sensor Configuration Report.

3.8.4 Sensor Monitoring for Problem Analysis

*********** Sensor Settings ************ Monitoring Sensor Channel 2 PAGE 1/4 [08:26:48,000] $GPGLL,5330.1234,N,01001 .2345,E,141800.00,A,A [08:26:48,328] $GPVTG,350.0,T,,M,10.0,N ,,K,A [08:26:48,437] $VDVBW,11.00,01.00,A,12. 00,02.00,A,,V,,V [08:26:48,547] $TIHDT,359.9,T [08:26:48,656] $TIROT,0.0,A [08:26:48,765] $GPGLL,5330.1234,N,01001 .2345,E,141800.00,A,A [08:26:48,875] $GPVTG,350.0,T,,M,10.0,N ,,K,A >

--------------------------------------- |Cfg CH2 |Monitor 1|Monitor 3|<-Back

N 1o21' E 0o15' |1> N/A|2>0.00|3>0.10nm *********** Sensor Settings ************ BaudRate Sensor1:< 4800> CRC: auto Ignored:$HC---$-----$-----$----- $-----$-----$-----$----- 1>Start Monitor> BaudRate Sensor2: 4800 CRC: auto Ignored:$HC---$-----$-----$----- $-----$-----$-----$----- 2>Start Monitor> BaudRate Sensor3: 38400 CRC: auto Ignored:$HC---$-----$-----$----- $-----$-----$-----$----- 3>Start Monitor>

--------------------------------------- | Save | Default | Analyze | Back

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For specific information on a particular sensor, the NMEA input data can be monitored and is listed on the AIS display.

From the Sensor Configuration main screen one of the three sensor channels may be selected by pressing 1, 2 or 3 or by using the cursor keys. By pressing the right cursor, the monitoring process is started.

Complete NMEA sentence are shown. With Monitor 2 [M6] or Monitor 3 [M7] another sensor channel can be selected.

3.8.5 Priority Handling of Sensor Sentence

Positioning System

Source

Priority

HIGH

Time of Position

Latitude/Longitude

GNS

Position accuracy

GLL

GGA

RMC

Rate of Turn(ROT)

ROT

Reference Datum

DTM

Speed over Ground

VBW

VTG

OSD

RMC

Heading

HDT

OSD

RAIM Indicator

GBS

LOW

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This table shows the priority handling of NMEA sentences. The sentences which are treated with higher priority are listed first.

3.8.6 Supported NMEA-0183 Sentences

DTM - Reference

1 2 3 4 5 6 7 8 9 | | | | | | | | | $--DTM,ccc,a,x.x,a,x.x,a,x.x,ccc*hh<CR><LF>

Field Numbers:

1) Local datum code (W84,W72,S85,P90,999-user defined, IHO datum code)

2) Local datum subdivision code

3) latitude offset, minutes

4) N or S (North or South)

5) longitude offset, minutes

6) E or W (East or West)

7) altitude offset, meters

8) Reference datum code ((W84,W72,S85,P90)

9) CRC

Used Fields: 1,8 1: Local datum code 8: Reference datum code

GGA - Positioning System Fix Data

Time, Position and fix related data form GPS receiver. 11 1 2 3 4 5 6 7 8 9 10 | 12 13 14 15 | | | | | | | | | | | | | | | $--GGA,hhmmss.ss,llll.ll,a,yyyyy.yy,a,x,xx,x.x,x.x,M,x.x,M,x.x,xxxx*hh Field Numbers:

1) UTC

2) Latitude

3) N or S (North or South)

4) Longitude

5) E or W (East or West)

6) GPS Quality Indicator,

0 - fix not available,

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1 - GPS fix, 2 - Differential GPS fix

7) Number of satellites in view, 00 - 12

8) Horizontal Dilution of precision

9) Antenna Altitude above/below mean-sea-level (geoid)

10) Units of antenna altitude, meters

11) Geoidal separation, the difference between the WGS-84 earth ellipsoid and mean-sea-level (geoid), \-\ means mean-sea-level below ellipsoid

12) Units of geoidal separation, meters

13) Age of differential GPS data, time in seconds since last SC104 type 1 or 9 update, null field when DGPS is not used

14) Differential reference station ID, 0000-1023

15) CRC

Used Fields: 1,2,3,4,5,6,7 1:UTC 2:Lat 3:LaInd 4:Lon 5:LoInd 6:Acc 7:Sat

GLL - Position - Latitude/Longitude

1 2 3 4 5 6 7 8 | | | | | | | | $--GLL,llll.ll,a,yyyyy.yy,a,hhmmss.ss,A,a*hh<CR><LF> Field Numbers:

1) Latitude

2) N or S (North or South)

3) Longitude

4) E or W (East or West)

5) Universal Time Coordinated (UTC)

6) Status A - Data Valid, V - Data Invalid

7) Mode indicator

8) CRC

Used Fields: 1,2,3,4,5,6,7 1:Lat 2:LaInd 3:Lon 4:LoInd 5:UTC 6:Valid 7:Acc

GNS - Fix Data

1 2 3 4 5 6 7 8 9 10 11 12 13 | | | | | | | | | | | | | $--GNS,hhmmss.ss,llll.ll,a,yyyyy.yy,a,c--c,xx,x.x,x.x,x.x,x.x,x.x*hh Field Numbers:

1) UTC

2) Latitude

3) N or S (North or South)

4) Longitude

5) E or W (East or West)

6) Mode indicator

7) Total number of satellites in use,00-99

8) HDROP

9) Antenna altitude, meters, re:mean-sea-level(geoid)

10) Goeidal separation meters

11) Age of differential data

12) Differential reference station ID

13) CRC

Used Fields: 1,2,3,4,5,6,7 1:UTC 2:Lat 3:LaInd 4:Lon 5:LoInd 6:Acc 7:Sat

RMC - Minimum Navigation Information

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12 1 2 3 4 5 6 7 8 9 10 11| 13 | | | | | | | | | | | | | $--RMC,hhmmss.ss,A,llll.ll,a,yyyyy.yy,a,x.x,x.x,ddmmyy,x.x,a,a*hh<CR><LF> Field Numbers:

1) UTC Time

2) Status, V = Navigation receiver warning

3) Latitude

4) N or S

5) Longitude

6) E or W

7) Speed over ground, knots

8) Course over Ground, degrees true

9) Date, ddmmyy

10) Magnetic Variation, degrees

11) E or W

12) Mode Indicator

13) CRC

Used Fields: 1,2,3,4,5,6,7,8,9,10,11,12 1:UTC 2:Valid 3:Lat 4:LaInd 5:Lon 6:LoInd 7:SOG 8:COG 9:Date 10:MagV 11:MagIn 12:Acc

VBW - Ground/Water Speed

1 2 3 4 5 6 7 | | | | | | | $--VBW,x.x,x.x,A,x.x,x.x,A*hh<CR><LF> Field Numbers:

1) Longitudinal water speed, \-\ means astern

2) Transverse water speed, \-\ means port

3) Status, A = Data Valid

4) Longitudinal ground speed, \-\ means astern

5) Transverse ground speed, \-\ means port

6) Status, A = Data Valid

7) CRC

Used Fields: ,5,6 4:LonGS 5:TraGS 6:Valid

VTG - made good and Ground speed

1 2 3 4 5 6 7 8 9 10 | | | | | | | | | | $--VTG,x.x,T,x.x,M,x.x,N,x.x,K,A*hh<CR><LF> Field Numbers:

1) Track Degrees

2) T = True

3) Track Degrees

4) M = Magnetic

5) Speed Knots

6) N = Knots

7) Speed Kilometres per Hour

8) K = Kilometres per Hour

9) Status, A = Data Valid

10)CRC

Used Fields: 1,5,6,7,8,9

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