The Research And Design Of Based On ARM9 Wireless Data Acquisition System

Embedded system, as a new area of computer applications, with its high stability, high efficiency can be applied to various fields. Embedded system as a platform for data acquisition can achieve high sampling frequency, high data transfer rate, and the implementation of data cache. We proposalsed a new designing of based on ARM9 and using ZigBee wireless data acquisition system, and compared with under different platforms data acquisition system.At first, I introduced the application of Embedded systems in the data acquisition, then simplely presented embedded systems development and the Wince operating system .after this I contact with the demand of actual project, analysed the required of project put forward a suitable solution. The hardware of data acquisition details detailed introduced the principle of realize and the framework of function, Designed a large number of peripheral interface circuit, Mainly include the Front-end data acquisition card and the Wireless data sending module. In this i give detailed description of every circuit module which i designed, And given some technical parameters. In part of software, I Briefly introduced the development of embedded operating system Wince, cutting core and the process of organ transplant. And introduced the Wince environment hardware-driven development process. Besides of this i described in detail the steps of application program design under Wince. And provide the process of communication which the system and host computer . Using of the real-time operating embedded system which can be cut, and can be transplanted and multi-threaded, not only can effectively improve the performance of high-precision data acquisition, and can effectively improve the real-time and Anti-interference performance of whole system. Finally, I Provided the debugging process of the system .I introducted a ARM9-based wireless data acquisition system hardware structure and software implementation, given some test data, Finally summarize system characteristics, Describes the characteristics and significance of topics and Proposed the deficiencies of system and improvement ideas, prepared for further study.