Design Of Data Acquisition Instrument And Data Analysis System Based On PC104 Bus

In manufacturing process of modern enterprises, the application of intelligent dataacquisition system is widely noticed and it is recognized as the important method to improvethe competitive power of the enterprises. For developing the high reliability portable dataacquisition instrument, the principle of intelligent data acquisition system is researcheddeeply. The data acquisition instrument based on pc104 bus is developed.In development process, design method based on pc104 bus structure is adopted, andthe pc104 bus structure's features are made full use of, for instance stacked connect, compactstructure, high integrated level etc. This apparatus not only has the function of dataacquisition and analysis, but also has the expandability function of digital I/O control, timeclock and counter etc.The software system of data acquisition and analysis is developed for monitoring highquality manufacturing process effectively, to make full use the hardware performance of dataacquisition instrument. In software design, the advanced theory algorithm is adopted.According to the result of data normality test, the theory of statistical process quality controlis utilized to monitor manufacturing process effectively. This software system has powerfulfunction, such as intelligent data acquisition, effective data management, process qualityexponential calculation, show the control chart and it can remind people in time when theprocess is not normal. In the end, the performance's reliability and theory's correct of the system is proved bypractice case analysis. The system can be used to analyzing and estimating status ofproducing, controlling manufacturing process and then preventing rejects' appearance. Thedevelopment of this system has tremendous significance to economy and society.