面向材料試驗機領(lǐng)域的嵌入式設(shè)備控制中間件的研究與應(yīng)用
[Abstract]:With the development of embedded system in the industrial field, it is more and more necessary to solve the problems such as long development cycle, great pressure of developers and much knowledge due to the complex equipment differences at the bottom. Therefore, referring to the soft bus technology of PC computer and the proxy mechanism of CORBA, by analyzing the characteristics of embedded middleware products in various fields and combining with the special problems in industrial control field, the middleware for small industrial equipment is studied and designed. Deployment in the "embedded controller touch screen" hardware environment. The results are verified on the material impact testing machine, and good results are obtained. This paper encapsulates the device driver, which is similar to reading and writing to the file system, into components, and generates the proxy mechanism of calling components in the application layer, which constitutes the basic architecture and idea of middleware. The whole middleware consists of four functional modules, and the data storage module provides a unified interface with the Sqlite embedded database. The application management module is used to manage the startup, termination and scheduling of each application. The device control module plays the role of command parsing. It not only accepts commands from local users but also processes commands from remote customers in distributed situations. Data processing module is divided into two sub-modules: data acquisition and data fusion, which play the role of data processing. The fusion matrix fusion algorithm is integrated into the middleware to remove invalid data and improve the accuracy and reliability of experimental data. Two tables based on the whole world are designed, which are the equipment file mapping table and the data type mapping table. These two tables are used as the link between the above four functional modules, which are laid on the operating system and device driver together, and form a multi-level middleware layer. The middleware is based on the hardware platform of CE9200 development board, and uses the integrated development environment of embedded Linux system and Qt. The five C classes of ApplicationManage,Control Middleware,Data Fusion,DataPicker,Data Save are designed. Through the continuous expansion and refinement of these classes, the middleware design in industrial control field can be improved.
【學(xué)位授予單位】:北方民族大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:TP311.52
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