Application Study Of ARM In System Of Rapid North-seeking And Orientation Measure

The system of Rapid North-Seeking and Orientation-Measuring works with inertial principle. Its function is to obtain the azimuth angle with respect to geographic north and local latitude through north-seeking measure under the condition of the carrier staying at static state so that aligning orientation and plumbing benchmark. The Rapid North-Seeking and Orientation-Measuring system is a kind of self-contained and independent position indicating system without relying on any outside information. It can not be interfered by the environment such as magnetic field. It behaved premium properties under the condition of either high or low temperature. The system can fast determine geographic north precisely under all-day environment, and is suitable for the high mobile field operation environment especially.The traditional Rapid North-Seeking and Orientation-Measuring system generally adopt the computer platform using PC/104 with high volume, high power consumption, fewer interfaces. Compared with PC/104, the ARM chip has incomparable merits such as low power, more interfaces, high integration level and convenient repotting of program. So, the thesis uses LPC2294 of ARM chip to construct the computer platform for the Rapid North-Seeking and Orientation-Measuring system.The thesis first analyse the theory of the system, then discusses the hardware design of computer platform of the system in detail. Then, the process of repotting the flush type real-time operating system μC/OS- II is given. Finally, the thesis briefly gives the process of exploiting the software of Rapid North-Seeking and Orientation-Measuring system.