Field data acquisition is faster in PDA-based mobile environment compared with document-based data acquisition, ensuring accurate data acquisition. However, portable DAQ systems of mobile environment can effectively replace DAQ systems embedded in computers but are less capable than DAQ systems embedded in computers and usually used in environments different from computers, causing noises whose cause are characteristics not certainly known. Therefore, in order to collect mobile-based field data, CompactFlash card-based hardware prototypes are suggested and mobile applications which guarantee acquisition of large amount of data with low hardware capability are performed. According to the test, mobile environments such as PDA were proved to be an effective way of collecting large amount of data. However, hardware performance has major effects on sequential data acquisition in mobile environments regardless of data display.
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