The Design And Realization Of Embedded Electronic Chart Navigation System

Aimed at the current development of ship navigation systems, a Embedded Electronic Navigation Chart(ENC) System is designed and implemented in this dissertation. The system uses high performance 32-bits embedded processor(Intel PXA255), uses Embedded Linux as operating system, uses Embedded GUI. With GPS receiver and ENC, it affords many functions such as displaying charts, helping with charts business and monitoring ships. Compared with other systems, it is compact, powerful, convenient, low-cost and high-reliable.Chapter 1 describes the current development of Electronic Chart System(ECS) and Embedded System.Chapter 2 analyses the feature and the functions of the system. A feasible scheme is also described.Chapter 3 introduces the background of navigation and the related technologies.Chapter 4 discusses ENC s preprocessing.Chapter 5 describes the hardware design of the Embedded System.Chapter 6 discusses the software design and implementation of the Embedded System in detail. The software is divided into several modules such as GUI module, display module, algorithm module, ENC manipulation module, GPS module and file management module. Boot loader and Flash File System are also discussed.Chapter 7 gives the testing method and the result.Chapter 8 draws the conclusion and gives the prospect of this system.