iho presentation library 4.0

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Checking the IHO S-52 Presentation Library edition 4.0 in ECDIS Background -IHO ECDIS Data Presentation and Performance Check

Related Papers

Zakirul Bhuiyan

Abstract: For the optimum situational awareness, navigators must recognise the level of display for objects presented when using Electronic Chart Display and Information System (ECDIS). The appearance and content of data displayed may be changed by the different settings as the display is generated in line with IHO Presentation Library (S-52) specifications. Improper management of the system may result in the anti-grounding alarms and other indications failing to activate as required for the safe conduct of the navigation. Navigators must exercise extreme caution when using the scale or zoom facility of the electronic charts. It is possible to zoom-in to a scale larger than that used in the compilation of the data which could create a false impression about the reliability of the charted information. Consequently, it could give a false impression of safe waters around the vessel where some dangers may not be shown due to the limitations imposed by original chart scale. Appropriate safety settings are of paramount importance for ECDIS display. Failings in appropriate settings have recently resulted a few grounding incidents (e.g. CSL Thames and LT Cortesia). The values for the safety depth and safety contour must be understood and entered to achieve a sensible and considered meaning. The navigators must remember that the display of underwater obstructions or isolated danger symbols can change according to the settings of this safety contour which also marks the division between " safe " and " unsafe " water. Additionally, the shallow contour could be utilised to indicate the gradient of the seabed (adjacent to a channel) and the deep contour to indicate the depth of water in which own ship may experience squat and interaction. This paper recognises the limitations of ECDIS display, the significance of appropriate safety settings as well as the alarm management.

Gabriel Materiales

Dmytro Stryzhkov

The International Hydrographic Review

Panagiotis Gkionis , Tyzack Laura

The International Centre for ENCs (IC-ENC) was set up in 2002 with a remit to harmonise the production and distribution of high quality ENCs. This Note provides an insight into IC-ENC, its validation processes, and the new ENC Validation Training Course.

Ian Russell

Chapter V Regulation 9 of the SOLAS Convention, annexed for reference, requires contracting governments to provide hydrographic services. Many signatories cannot provide these unaided. This is despite the fact that new cruise ship itineraries and trade routes are being established in their waters for increasingly larger and deeper draught vessels. This article reviews a number of chart related casualties. These demonstrate that no chart, paper or digital, is infallible. This emphasizes the urgent need for new and better hydrographic data collection in some key oceanic areas. Potential innovative solutions for data acquisition and hydrographic capacity building strategies are considered.

Transactions on Maritime Science ToMS

Dragan Perakovic

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ECDIS Presentation Library 4.0 and PSC Concentrated Inspection Campaign (CIC) on SAFETY OF NAVIGATION

The Maritime Authorities of the Tokyo and the Paris Memoranda of Understanding (MoU) on Port State Control will launch a joint Concentrated Inspection Campaign (CIC) on SAFETY OF NAVIGATION. The aim of the CIC is to check compliance with the applicable requirements of the SOLAS Convention, the overall status of the vessel’s navigation safety, and the competency of crew involved in navigation operations.

This inspection campaign will be held for three months, commencing from 1 September 2017 and ending 30 November 2017 . A ship will only be subject to one inspection under this CIC during the period of the campaign.

Port State Control Officers (PSCOs) will use a list of 12 questions to assure that navigation equipment carried onboard complies with the relevant statutory certificates, the master and navigation officers are qualified and familiar with operation of bridge equipment, especially ECDIS, and that navigation equipment is properly maintained and functioning.

This campaign is also related to standards updates that have been carried by IHO with further implementation by ship owners and ECDIS manufacturers.

One of the good tools for PSC visit preparation may be the ECDIS Familiarisation Recommendations by the Nautical Institute provided in the form of check-list.

During the last years ECDIS has been more commonly used on SOLAS vessels and with the ECDIS Carriage requirement a majority of vessels will be equipped with ECDIS by the end of this decade. The development of ECDIS is an ongoing process based on user needs, technology achievements and need for improvement related to safety of navigation. The need to improve previously adopted ECDIS Standard was also recognized by the IMO «in order to ensure the operational reliability of such equipment and taking into account the technological progress and experience gained» and resulted in a revised performance standard for ECDIS MSC.232(82) adopted in December 2006. In the same way the related IEC test standards, as well as the IHO standards used for production and presentation of Electronic Navigation Charts (ENC) have been revised periodically.

In Oct 2011 the IHO issued the ECDIS Data Presentation and Performance Checks , which included two fictitious ENC cells intended to assist mariners identifying if their ECDIS was using the latest IHO S-52 Presentation Library, edition 3.4. The dataset also highlighted if there were any known ENC display anomalies present in the system. Mariners were asked to run a series of quick tests using the check datasets within their ECDIS to ascertain if they were experiencing display issues. If the system was found to be running an old IHO Presentation Library or had a more serious display anomaly Mariners were advised to contact their ECDIS manufacturer or an appropriate equipment maintenance company to obtain software patches and investigate further to resolve the issues. Results of the tests were to be sent to the IHO for analysis and for use in revising IHO standards.

The IHO ECDIS Data Presentation and Performance Checklist were not intended for, and are not suitable to be used as a Port State Inspection / Carriage compliance test for ECDIS.

To address the display anomalies and improve the ECDIS user experience the IHO issued S-52 Presentation Library edition 4.0 in September 2014.

The IHO has coordinated with the IEC to align the issue dates of S-52 and IEC 61174 “ECDIS Operational and performance requirements, methods of testing and required test results” publications. This resulted in a new edition (4.0) of IEC 61174 being published in Aug 2015. These standard updates affect all new ECDIS systems and new installations from Aug 19 th 2015. Current ECDIS users have until Aug 31 st 2017 to update their systems to comply with the ECDIS software updating guidance in MSC.1.Circ.1503 “ECDIS – GUIDANCE FOR GOOD PRACTICE” .

Changes to the IHO S-52 Presentation Library introduced in edition 4.0 will invalidate the tests contained in IHO ECDIS Data Presentation and Performance Checks which were specifically designed and developed for ECDIS using the IHO S-52 Presentation Library edition 3.4 or earlier.

IEC 61174 ed 4.0 address the following main problems:

- Consistent use of symbols and abbreviations

- Alarm categorization

- Alarm visualization

- Reducing a number of audible alerts

- ECDIS default control settings Route exchange format «RTZ»

Set of new IHO standards address the following main areas:

- New design of Chart object info functionality (Pick report) makes access to ENC chart information easier and understandable for user

- Reorganization of alert management resulting in less alarms being generated by ENC objects

- Crossing navigational hazards (isolated dangers and aids to navigation) as well as areas with special conditions (TSS, anchorage areas, etc.) will generate only visible alarms now

- Safety contours continue to create audible and visible alarms

- Standardized way of making ENC update status report will allow mariners and Port State Control inspectors to confirm that the ENCs installed in an ECDIS are up-to-date

- ECDIS viewing groups extension based on Mariner feedback for detailed control of ENC features

- Chart management and ENC status reports

- ENC test data sets

- Other modifications - new symbols, names of fairways and anchorage areas, highlighting ENC updates, date dependent objects, new chart display layers, and some more

ECDIS and the IHO Presentation Library Edition Number

All ECDIS must have a function to display the edition number of the IHO Presentation Library that is in use within the ECDIS. The new IHO ECDIS Presentation Library edition 4.0 clause 19.1 states: ‘The edition number of the PresLib installed must be available to the Mariner on request’. This requirement is tested for in the standard IEC 61174 edition 4 clause 5.5.1 Presentation library (S 52/Annex A, Part I/19.1) ‘The edition number of the PresLib installed shall be available to the Mariner on request’.

All Mariners must familiarise themselves with the function in their ECDIS that will display the edition number of the IHO Presentation Library as this varies across ECDIS manufactures. This function will be required when Port State Control officers want evidence that the ECDIS is up-to-date to the latest IHO standards. MSC.1.Circ.1503: ‘Additionally, ECDIS software should be kept up to date such that it is capable of displaying up-to-date electronic charts correctly according to the latest version of IHO's chart content and display standards’.

ECDIS Chart 1 and IHO Presentation Library edition 4.0 checks

This is the IHO recommended method for checking that the ECDIS system can display symbols correctly. There is no intention for the IHO to issue a check data set for IHO Presentation 4.0.

ECDIS users can check that their systems are capable of displaying the new symbols introduced in the IHO S-52 Presentation Library edition 4.0 by opening the ECDIS Chart 1 datasets. ECDIS Chart 1 which includes a legend of symbols used in ENC’s, should be installed on all type approved ECDIS.

Any anomalies in the display, shall be reported to the ECDIS provider and the IHO at [email protected].

More details can be found at www.iho.int

Viewing ECDIS Chart 1, “Information about chart display (A, B)” within the ECDIS will only display the new symbols if the IHO Presentation Library edition 4.0 is installed.

( 1 ) The beacon and buoy features below (approx. position is 15°07.0’N 005°06.5’W) display the date dependent magenta ‘d’ symbol when the ECDIS date range is set between 01.04.2014 and 27.08.2014.

( 2 ) New indication highlight symbology for objects that pose a danger to the vessel.

( 3 ) Automatic update symbology for identifying where changes to the ENCs have occurred.

It will not be possible to view the new symbols, if the ECDIS software has not been updated to use the S-52 Presentation Library Edition 4.0.

Referring to mentioned above deck officers must know how to check their actual Presentation Library. Usually you can easily find it via so called “PIC report” enquiring ENC cell information. Let’s see how it’s done by example of two different systems.

IHO Presentation Library check on Transas Navi-Sailor 4000

This can be done in three steps:

( 1 ) Click “I” button on the console

( 2 ) TrackBall RightClick anywhere on the chart

( 3 ) Click “General” in the chart information field

As you can see, this ECDIS still runs with the old Presentation Library ed 3.4 from 2008.

Another tricky moment is that not every ECDIS clearly shows ECDIS chart 1 as it is. ECDIS chart 1 is split in several cells with names starting from “AA”. So, if one clicks “Task List” -> “Charts” he will be able to see charts “aa5cab1” and “aa5cab2”, which are supposed to be checked as per IHO recommendations. As mentioned above, it is not possible to view the new symbols, as the ECDIS software has not been updated to use the S-52 Presentation Library Edition 4.0

IHO Presentation Library check on Simrad Maris 900

This can also be done in three steps:

( 1 ) TrackBall RightClick anywhere on the chart

( 2 ) Click “Properties” on the context menu

( 3 ) Click “More” in the chart information field

This ECDIS already runs with the new Presentation Library ed 4.0 from 2014 . And if you access the Charts Management utility, you will be able to find ECDIS Chart 1 and the same notation for its cells. Checking cells “aa5cab1” and “aa5cab2” will give an exact match with example given by IHO.

I do hope that this information helped to clarify some concerns regarding ECDIS Presentation Library and corresponding checks and I wish you fair winds, following seas and no deficiencies!

Learn more about ECDIS operation and safety settings with our ECDIS Awareness course .  

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Ecdis operating with edition 4.0 of the iho presentation library.

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Understanding ENCs: A guide to symbols and abbreviations in ECDIS

Helping mariners to navigate confidently.

Digital navigation allows today’s mariners to navigate and dock vessels with even greater confidence and precision than ever before.

With the use of Electronic Chart Display and Information Systems (ECDIS), seafarers can navigate in real time using Electronic Navigational Charts (ENCs) from official services such as ADMIRALTY Vector Chart Service (AVCS) .

When navigating with ECDIS, it’s important that mariners are confident in interpreting ENC symbology and how it relates to the area in which they’re operating. Below you can find information on how ENC symbols are displayed on ECDIS and useful resources to help you understand the symbols and abbreviations used in these charts. 

How are ENC symbols displayed on ECDIS?

Historically, it has been the task of highly skilled cartographers to present accurate and reliable information on ADMIRALTY paper charts. However, when it comes to ENCs, the responsibility for the portrayal of navigational information is controlled by the  International Hydrographic Organization’s S-52 standard .

S-52 is a standard used by ECDIS manufacturers that determines how ENC data is displayed on screen. This means that what the mariner sees on the screen is displayed in the same way across all type-approved makes and models of ECDIS. An important part of this standard is the S-52 Presentation Library 4.0.

What is the Presentation Library in ECDIS?

The IHO S-52 Presentation Library contains instructions to ECDIS manufacturers for the ‘drawing engine’ within the ECDIS on how to display symbols, colours and line styles on the screen. For example, this could include the size and shape of particular symbols the mariner sees on their ENC.

It is essential for all users to make sure their ECDIS is using the latest Presentation Library to remain SOLAS-compliant. This ensures that all ENC symbols are appearing accurately and consistently on screen.

What is ECDIS Chart 1?

ECDIS Chart 1 is a legend of the entire set of symbols that may be used within an ENC and is installed on all type-approved ECDIS systems. For a graphical way to establish whether your ECDIS is up to date, the mariner can use ECDIS Chart 1 to review the new symbols introduced in IHO S-52 Presentation Library Edition 4.0.

Understanding ENC symbols

We’ve made available a number of guides to help you understand both the traditional and simplified forms of ENC symbols displayed in ECDIS. These are available as paper publications and as ADMIRALTY e-Nautical Publications:

• ADMIRALTY Guide to ENC Symbols used in ECDIS (NP5012) 

NP 5012 offers detailed explanations and descriptions of both traditional and simplified forms of ENC symbols displayed in ECDIS, ensuring bridge crews possess the knowledge needed to navigate safely.

• Symbols and Abbreviations used on ADMIRALTY Paper Charts (NP5011)  

NP 5011 can also be useful if you need to cross reference ENC symbols to the equivalent paper chart symbol.

The quick guide to ENC symbols

We have also created the ‘Quick Guide to ENC Symbols’ as a free and easy-to-use reference guide that can help you to identify some of the lesser-known symbols found on ENCs.

Each symbol covered in this guide can be quickly interpreted using the image, explanation and additional information provided to support safe navigation using ECDIS.

Please note:  ENC symbols shown in the ‘Quick Guide to ENC Symbols’ are shown in daytime colours and therefore may be shown in different colours/shades in night-time palette. The guide is not intended to replace ECDIS Chart 1.

Name Thomas Mellor

As Head of Technical Partnerships, Tom leads the UKHO’s collaboration with technical partners including Original Equipment Manufacturers (OEMs) to enable the development of e-navigation products and S-100 solutions for Electronic Chart and Information Display Systems (ECDIS). Tom works at the forefront of the latest ‘next generation’ navigation technologies to support the implementation of new standards that can help improve safety, efficiency and optimisation.

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How to check ECDIS displays the latest symbols, IHO S-52 Presentation Library 4.0

All ECDIS should have been upgraded to the new IHO S-52 Presentation Library edition 4.0 by August 31st 2017.

IMO SN Circ 266 rev1 states;

ECDIS that is not updated for the latest version of IHO Standards may not meet the chart carriage requirements as set out in SOLAS regulation V/19.2.1.4.

Once upgraded there is no need to use the IHO Check Data Set to check that symbols are being displayed correctly.

To check that the ECDIS is correctly displaying the new symbols, the Mariner can check ECDIS Chart 1. ECDIS Chart 1 is a legend of the entire set of symbols that may be used within an ENC. It is installed on all type approved ECDIS systems.

Only ECDIS updated to IHO Presentation Library edition 4.0 will be able to show the new ENC symbols. 

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Robot vacuum cleaner support

Ask Siri to clean the floors.

The Home app now supports the core functionality of robot vacuum cleaners, such as power control, cleaning mode, vacuum, mop, and charge status. They can also participate in automations and scenes, and respond to Siri requests. So you can add them to your cleaning routines — or tell Siri to do some spot cleaning in the living room.

View your home electricity use

Easily access and understand your home electricity usage right from the Home app. Eligible Pacific Gas and Electric Company customers can connect their utility account to view their electricity usage and rate plan information. 19

Privacy and Security

Control how you share contacts with apps.

Decide which contacts to share with an app, rather than giving it access to all your contacts. Or give the app access only to those you message and call most.

Redesigned Privacy and Security settings

An improved Privacy and Security settings menu makes it easier to manage how much information you’re sharing with apps.

Improved Bluetooth privacy

Pair accessories with greater privacy.

App developers will be able to offer an intuitive new way to pair accessories while protecting information about your nearby Bluetooth devices.

And so much more.

Accessibility..

Eye Tracking makes it possible for people to control iPhone with just their eyes. 20 Music Haptics syncs the iPhone Taptic Engine with the rhythm of songs so those who are deaf or hard of hearing can enjoy the Apple Music catalog. 21 And Vocal Shortcuts helps people with severe atypical speech record sounds that trigger specific actions on iPhone.

Calculator.

Access the all-new Math Notes calculator, a new portrait orientation for the scientific calculator, and other new features like unit conversion and history.

A redesigned month view makes it easier to get an overview of your month ahead. And you can create, view, edit, and complete reminders from the Reminders app right in Calendar.

Scenes let you organize and present your board section by section. Send a copy of your board to anyone with just a link. An improved diagramming mode makes it easier to form connections on your canvas. And align your board content just the way you like by snapping items to the grid.

With enhanced screen sharing capabilities, you can draw on someone’s screen so they can see what they can do on theirs, or control their screen and take actions yourself.

Emergency SOS live video.

Share streaming video and recorded media during emergency calls. During a call, participating emergency dispatchers will send you a request to share live video or photos over a secure connection, making it easier and faster to get the help you need.

Apple Fitness+.

A new design lets you jump right into a personalized selection of workouts or meditations. The For You tab elevates activities based on preferred trainers, durations, and music. And an all-new search feature makes it easy to find exactly what you love.

Record and transcribe a live call directly from the Phone app. 22 You can also search call history more easily, dial smarter, and switch SIM cards seamlessly.

iOS 18 is compatible with these devices.

Learn more about iPhone

• iPhone 16 Plus
• iPhone 16 Pro
• iPhone 16 Pro Max
• iPhone 15 Plus
• iPhone 15 Pro
• iPhone 15 Pro Max
• iPhone 14 Plus
• iPhone 14 Pro
• iPhone 14 Pro Max
• iPhone 13 mini
• iPhone 13 Pro
• iPhone 13 Pro Max
• iPhone 12 mini
• iPhone 12 Pro
• iPhone 12 Pro Max
• iPhone 11 Pro
• iPhone 11 Pro Max
• iPhone X S  Max
• iPhone SE (2nd generation or later)

Developers will love iOS 18, too.

Learn more about developing for iOS