Electronic Chart Display and Information System

 

Electronic Chart Display and Information System (ECDIS): A Comprehensive Overview

History of ECDIS

The concept of ECDIS began in the mid-1980s when the International Maritime Organization (IMO) and the International Hydrographic Organization (IHO) started discussions on electronic charts. The first Electronic Navigational Chart (ENC) was patented in 1986 by Mortimer Rogoff, Peter Winkler, and John N. Ackley with Navigation Sciences, Inc. The IMO adopted performance standards for electronic charts in the 1990s, and in 2000, the revised Chapter V (Safety of Navigation) of the International Convention for the Safety of Life at Sea (SOLAS) came into force, allowing ECDIS to be accepted as meeting chart carriage requirements.

Usage of ECDIS

ECDIS is a navigation information system that displays selected information from a System Electronic Navigational Chart (SENC) with positional information from navigation sensors. It assists mariners in route planning and monitoring, providing continuous positional and navigational safety information. ECDIS can be used as an alternative to paper charts, offering real-time information, route monitoring, automatic estimated time of arrival (ETA) calculation, and ENC updating. It integrates with other navigational equipment such as GPS, RADAR, ARPA, and Echo Sounder, enhancing navigational safety and reducing the navigator's workload.

Updates in ECDIS

ECDIS technology has evolved significantly over the years. The transition to the S-100 Universal Hydrographic Data Model by the IHO aims to create a unified, interactive suite of products and standards. The S-101 product specification is under development for the production and publishing of ENCs2. Updates to ECDIS include improved chart correction processes, enhanced integration with other navigational systems, and the ability to tailor charts to specific voyage requirements.

Maintenance of ECDIS

Maintaining ECDIS involves regular updates to ensure the accuracy and reliability of the system. This includes updating the electronic charts, ensuring the software is up-to-date, and performing routine checks on the hardware1. Maintenance also involves training the crew on the proper use and troubleshooting of the system to ensure its effective operation.

Testing of ECDIS

Testing ECDIS involves verifying that the system meets the performance standards set by the IMO. This includes type approval testing to ensure the system complies with the IEC 61174 standard for ECDIS1. Testing also involves checking the integration with other navigational equipment and ensuring that the system provides accurate and reliable information.

Conclusion

ECDIS has revolutionized marine navigation by providing a safer, more efficient, and cost-effective alternative to traditional paper charts1. Its continuous evolution and updates ensure that it remains a vital tool for mariners, enhancing navigational safety and reducing operational costs.