원문정보
초록
영어
As e-navigation is developed by IMO (International Maritime Organization), more technical developments are also pushing developments in the direction of more integrated shipborne systems. Virtually all manufacturers of bridge equipment have their own proprietary network solutions, normally based on Ethernet, that are able to handle many of the integration requirements. However, standards are needed for efficient interfacing between different manufacturers’ equipment and will also be beneficial where incremental improvement or refurbishment of navigation components is an issue. Recently the International Electrotechnical Commission (IEC) published new IEC 61162-450 standard on ship data networks. This is an Ethernet based network specification with a relatively low level of protocol complexity which satisfies specific requirements from the ship equipment industry. This paper briefly introduces a new Ethernet-based shipborne interface technology which transports both NMEA sentences and binary image data such as Radar images.
목차
1. Introduction
2. Light-Weight Ethernet Overview
2.1 Network function (NF) requirements
2.2 System function (SF) requirements
2.4 Other network function (ONF) requirements
3. Electrical and mechanical requirements
4. Network Requirements
4.1 IP Address assignment for equipment
4.2 Multicast address range
5. Transport layer specification
5.1 Use of multicast addresses and port numbers
5.2 UDP checksum
5.3 Datagram size
6. Application layer specification
6.1 Valid header
6.2 General IEC 61162-1 sentence transmissions
6.3 Requirements for processing incoming datagrams
6.4 Binary image transfer using UDP Multicast
7. Conclusion
References