Research And Realization Of Integrated Navigation Information Processing System Based On VxWorks OS

Integrated Navigation Information Processing System (INIPS) is an important equipment of Marine navigation system. The navigation equipments are combined to achieve data fusion, centralized control and display of navigation information through computer technology and Information fusion technology. It put forward high requirements for integrated navigation information processing system such as the data management, information communication rate, and the effect of system display. Under the background of the one type INIPS, according to the features of navigation system and the character of real-time embedded operation system, the overall design is completed to improve the integrated navigation system performance.In this paper, on the basis of the platform of VxWorks operating system, the various tools and technologies such as the current powerful user graphic development tools -Tilcon, the embedded communication technology, database technology and integrated navigation data fusion technology, are used to research and design data optimization, storage, communications and display, which makes the system more friendly, information management more conveniently, stable and reliable.It is briefly introduced the development process, status and characteristics of the research field. The whole system design is completed according to requirement of system. On the basis of further study of VxWorks operating system and communication technology, the double-nic redundancy communication and serial interface communication are realized. The structure principle and development approach of embedded GUI tool -Tilcon is introduced, the man-machine interaction module based on Tilcon is designed in detail, including the interface design, key code of program and debugging process of program. Then it is designed a human-computer interaction system which is friendly to display and simple to operate. In order to make the analysis of sailing conveniently in future, the navigation data and fault information based on Embedded database----Berkeley DB is stored. Additionally, the optimization design of navigation data with kalman filtering is realized in this paper. Finally, the testing system is established to test the function of system, and the results meet the requirements.