Design And Application Of Data Acquisition And Processing System Based On Virtual Instrument

Traditional data acquisition and processing system for system does not specificallyconsider optimization. But with the application of new technologies, the digital world hasbecome increasingly complex, requirements for rapid development and high performanceare also increasing. By combining computer platform deeply with standard interfacehardware modules, the widely used virtual instrument technology, due to its openarchitecture and software-centric design framework, make it possible to provide productsrapidly and improve performance effectively.Based on the analysis of domestic and foreign research results of data acquisition andprocessing techniques, this paper explores the potential of the parallel process of dataacquisition and processing, and models pipeline for data acquisition and processing, Themain contents and results are summarized as follows:Using asynchronous pipeline design pattern to model the process of data acquisitionand processing, optimizing the software design with multithreading technology, a model isproposed for data acquisition and processing to get the purpose of highly performance andgood user experience.With task-oriented software engineering concept, to centralize resource information ofdata collection process, unified development model is applied, to reduce development andmaintenance costs.The model is applied to a contact parameter measurement system based on virtualinstrument technology, to show the details of the application of this model, highlightingbenefits of the optimal design.The experiment results prove that the model can significantly shorten the average testtime in the ideal case of random input of test tasks. Applying this model to an instance ofmeasuring characteristic parameters of AC contactor, the results further indicate that thismodel can significantly increase the flexibility of test configuration and avoid thecomplexity of multithreading programming.