Research And Design Of The Meteorological Data Collector Based On ARM

With the development of the Meteorological Industry, there have been great changes in not only the quantity but also quality of which people require information. To meet the society needs, our national automatic meteorological observing technology has gotten fast development. Meanwhile, the key instrument which is the meteorological data collecting system is researched. But the research work is later than the developed countrys'. Because of this condition, it is trend for our nation to research a series of high-precise and high-flexible data collecting systems. This paper gives the research theory and building method about the data collecting system. The paper performs the whole procedure of design of the multi-channel data collecting system based on ARM. In the system, wide-used ARM chip produced by Atmel Company, AT91M55800A, is selected and regarded as the core controlling part in order to realize to control the outer unit, store the data and communicate the data. In addition, many kinds of chips with the digital interface are applied in this system to make the whole system be of not only all kinds of data communications but high currency and high flexibility. The main content of the paper contained two parts: 1.The design of the hardware circuit scheme in the data collecting system. It includes analog part, digital part and other interface circuit design. 2. The design of the software in this system. It includes start-program, the download of the real-time operation system-μC/OS-II and the introduction of a application program. 3. We give the test schedule and result of the whole system.