The Design Of Integrated Navigation Evaluation System

Integrated navigation system has two or more navigation subsystems to provide multiple datas, and can get the best navigation information by the use of data fusion technology. With the rapid development of integrated navigation technology, whether it can operate safely and reliably is an important symbol of quality evaluation of navigation equipment.However, most institutions make their researches on integrated navigation with theory and practice separated, and the normal development system also lacks the real-time display technology of multiple navigation datas and the effective monitoring of navigation equipment performance.In this paper, after doing thorough research on system development process,an evaluation system for the performance of integrated navigation based on a deep theory research is designed. According to the design requirements, the design of system is divided into three parts. There are hardware development, software design with data acquisition system and the procedure program system.Firstly,the holistic considering of system design is introduced.System function,seheme design and configuration are described in details. Then, the hardware design of syetem based on ARM processor LPC2292 is discussed, which is mainly composed of reduced system,serial-port expansion and A/D converting. What's more, the software platform with data acquisition system and application software system is developed. The drivers of hardware devices make use of C to develop in the ADS1.2 Code Warrior IDE,and the application software is carried out in the use of Visual 6.0 C++. Finally,the system establishs the database in the use of Access2003.and can visit the database by a method of ADO.The hardware-software codesign and debugging of the system are realized, and the test results show that the system can collect multiple navigation datas. At the same time, it can measure the performance of navigation equipment through data comparison and real-time display. At present, the system can meet the requirements of production.