The International Electrotechnical Commission (IEC) is a global organization that develops and publishes international standards for electrical and electronic technologies. One of the important standards they have developed is the IEC 61174, which specifically deals with electronic chart display and information systems (ECDIS).
Understanding the purpose of the IEC 61174 standard
The IEC 61174 standard provides guidelines and requirements for manufacturers, shipbuilders, and navigators in the implementation and use of ECDIS on board ships. The primary purpose of this standard is to ensure safe navigation and improve situational awareness at sea.
Before the advent of ECDIS, paper charts were the main source of navigational information on ships. However, with technological advancements, electronic chart systems became more prevalent as they significantly improved efficiency and accuracy in navigating vessels.
Key features of the IEC 61174 standard
The IEC 61174 standard specifies various features and functionalities that an ECDIS should possess. Some of these key features include:
Data presentation: The standard describes how chart data, such as depth contours, navigation aids, and other relevant information, should be presented on the electronic display in a clear and legible manner.
Data updating: As charts constantly change due to shifting tides, dredging activities, or new constructions, the standard mandates regular updating of the electronic charts to provide accurate and up-to-date information to navigators.
Backup arrangements: To ensure uninterrupted navigation, the standard requires ECDIS units to have backup arrangements, such as redundant power supply and backup data storage, in case of system failures.
User interface: The IEC 61174 standard also provides guidelines for the user interface of an ECDIS, including features like zooming, panning, route planning, and display customization options.
Benefits and future developments
The implementation of the IEC 61174 standard has contributed to safer navigation practices and reduced the risk of maritime accidents. ECDIS systems have improved situational awareness for navigators, allowing them to make informed decisions regarding vessel position, course, and potential obstructions.
In recent years, there has been ongoing research and development in electronic chart systems, with advancements like real-time weather overlay, integration of AIS (Automatic Identification System) data, and enhanced connectivity with other shipboard systems. These advancements aim to further enhance the capabilities of ECDIS and improve navigation safety.
In conclusion, the IEC 61174 standard plays a vital role in ensuring the effectiveness and reliability of electronic chart display and information systems on ships. By providing clear guidelines and requirements, it helps in the safe navigation of vessels and contributes to the overall efficiency of the maritime industry.
Nina She