Electronic Nautical Chart

Product Introduction

The Electronic Chart Display and Information System (hereinafter referred to uniformly as ECDIS) is a new type of ship navigation and decision-support system. Based on digital nautical charts that comply with international standards, it dynamically displays maritime geographic and navigational information. By integrating navigation data from external sensors and devices such as GPS, log, gyrocompass, echo sounder, AIS, and navigation radar, the system enables functions including positioning, navigation, route planning and monitoring, collision avoidance, and intelligent alerting, thus constituting a next-generation electronic nautical chart system that achieves automated navigation. This system assists mariners in their navigation operations through visual graphical displays, freeing them from heavy, repetitive tasks and significantly enhancing both their work efficiency and the safety of ship operations.

 

Main functions

1. Chart display

Offers three color display modes: daytime, evening, and nighttime.

Offers four hierarchical display modes: basic, standard, user-customized, and full.

Provides basic map operations such as zoom in, zoom out, drag, 1:1 view, and object query.

2. Nautical chart management function

It can load new electronic nautical charts and update files (supporting S-57, S-63, and ARCS formats);

You can uninstall the electronic chart files from the system.

You can view the logs for loading, updating, and unloading electronic charts.

Electronic charts can be sorted and viewed in adjustable layouts.

3. Navigation information display

Supports displaying integrated navigation information in text or graphical format, including: position, speed over ground, course, and heading.

Water depth, AIS targets, ARPA targets, situational and meteorological information, as well as information such as map name, map number, scale, date, and time.

4. Route Planning Function

It can complete the design and planning of new shipping routes and supports both rhumb lines and great-circle routes.

Supports editing, querying, deleting, and text output of flight routes;

The flight routes can be subjected to safety checks, and a list of elements that do not meet safety requirements can be generated for those routes.

5. Navigation Monitoring and Alarm

The vessel’s position can be marked on the nautical chart in real time based on location information.

Based on target information transmitted by navigation radar and AIS, the system can automatically plot surrounding maritime moving targets and perform real-time calculations of collision parameters (CPA and TCPA) for these moving targets. It can also trigger collision avoidance alarms according to pre-set collision avoidance alarm parameters.

The system can load and display the planned route. During ship navigation, it clearly shows the relationship between the vessel’s current status and the planned route. It can calculate in real time the distance to the next waypoint, the time required to reach the next waypoint, the estimated time of arrival at a specified waypoint, as well as deviations in distance and heading. When necessary, it provides prompts or alarms.

Supports monitoring hazardous sea areas, reefs, no-navigation zones, shoals, and safe water depths ahead of the vessel’s course, and provides alerts accordingly.

Alarm information has been categorized according to the urgency of the information, and various methods—including sound, color, and regional flashing—have been employed to differentiate between alarm, warning, and notification messages. Furthermore, sound, color, and flashing effects are used to present alarm information in a hierarchical and tiered manner for command personnel.

6. Nautical chart operation function

Supports landmark-based positioning;

Supports estimated position calculation function;

Supports surveying and mapping functions, including the calculation of distances between two points, azimuths, and areas of regions.

7. Track display function

Supports at least 12 hours of historical track data, and allows marking timestamps on the historical track at user-defined time intervals.

You can query historical flight track information.

 

Technical Features

1. Information display capability

Complies with the international standards IEC61174, IEC60945, and IEC62288;

Supports digital nautical charts in S57 and S63 formats;

The chart display update rate is ≥20 times per minute;

Resolution ≥ 1280x1024.

2. Target Mapping and Surveillance Capability

Target types: navigation radar targets and AIS targets;

Number of plotted targets: No fewer than 100 AIS targets and no fewer than 100 radar targets.

3. Trajectory recording capability

It can record historical tracks for at least 3 months.

4. Accuracy of information data display

Latitude and longitude accuracy: 0.001 minutes;

Heading accuracy: 0.1 degree;

Speed accuracy: 0.01 knots.

 

Device interface

Table 1: Device Interface

 

Technical Parameters

Table 2: Technical Parameters

 

Deployment method

 

Product Composition

The CMC-ECDIS-1000 series Electronic Chart Display and Information System is available in two models: the CMC-ECDIS-1100 and the CMC-ECDIS-1200.

The CMC-ECDIS-1100 ECDIS features a modular design;

The CMC-ECDIS-1200 ECDIS features an integrated design and is a compact, all-in-one device that combines both the processing unit and the display unit into a single unit.

 

1. Equipment List for CMC-ECDIS-1100 Model

The system block diagram of the CMC-ECDIS-1100 ECDIS is shown in Figure 1.

Figure 1: Block Diagram of the CMC-ECDIS-1100 System Configuration

 

The CMC-ECDIS-1100 ECDIS consists of three main components: the processing unit, the display unit, and the control unit. The selected unit parameters for the CMC-ECDIS-1100 are shown in the table below.

 

Table 3: Technical Specifications of the Computer Processing Unit

 

Table 4 shows the technical parameter table for unit components.

 

Table 5: Technical Parameter Table for the Control Unit

 

2. List of Equipment for CMC-ECDIS-1200 Model

The CMC-ECDIS-1200 ECDIS is a marine-specific computer that integrates both the processing unit and the display unit into one device, and it holds certification certificates from multiple classification societies. The system architecture diagram is shown in Figure 2.

Figure 2: Block Diagram of the CMC-ECDIS-1200 System

 

Table 6: Technical Specifications of Computer Processing and Display Unit