Abstract
Data Acquisition System is a system that works as following steps: get the analog signals from sensor, and translate into digital signals, then send the digital signals into the computer for processing, at last export the result as the requiring format. As the developing of the Computer Technology and Electronic Information Technology, the Data Acquisition System combined with advanced Electronic Technology could deal with vast process data. Nowadays, the Data-Acquiring Technology is used in many fields such as Analytical Instrument, Geology Reconnoiter, Medical Treatment Instrument, Radar, and Communication etc.
Based on rapid development of computer, semiconductor and software technology, the performance of embedded microprocessor get highly improved and the kind of embedded operating system emerge in endlessly. The embedded system gets extensive application in increasing subject. This design is an application of embedded system in data collection and controlling system.
The hardware use the ATmega16 of AVR series for MCU. With its internal 8-channel independent of the 10 precision A / D interface, the job in the noise model, enhanced anti-jamming capabilities and reduce costs. is The embedded real time system uSmartX act as the software platform, provide excellent software support.
Key words: uSmartX 、 RTOS、 A/D Acquisition、 Data Acquisition、AVR