水泥抗折试验机测控系统的设计

发布时间：2019-06-12 18:13

【摘要】：水泥是一种重要的建筑材料,它的应用十分广泛。水泥抗折试验机是进行水泥试样抗折强度的重要仪器。随着社会的发展,原有的水泥抗折试验机在控制、精度、数据处理等方面已经难以满足使用者的需要。因此本课题提出了基于嵌入式Linux平台的抗折试验机,来提升系统的数据处理能力和控制精度。本课题的研究目的是设计一款可以高精度地采集信号,同时可以实时显示采集信号的测控系统。本课题从水泥抗折试验机的构成、发展状况出发,研究了抗折试验机的优缺点和发展趋势,在系统设计的过程中,分为硬件设计和软件设计两部分。硬件设计部分,主要包括电源模块、LCD模块、USB模块等,介绍了硬件系统搭建的方法。通过传感器实现对待测数据的采集,从而对数据进行分析、处理和显示。在软件设计的过程中,介绍了 Linux的安装过程和串口驱动程序的设计。人机界面采用的是Qt,实现了对测试结果的显示等功能。论文基于ARM设计了水泥抗折试验机测控系统,完成了硬件选型和测控电路设计,编写了基于Linux系统的测控软件,对系统进行了整体测试。本课题设计的测控系统,通过模块化的设计,实现了对水泥的抗折强度进行测量、处理、显示的目的,测得的数据的精确度满足要求,数据处理能力强大,并且实现了精确的自动化控制,具有较好的实时性,达到了预期效果。
[Abstract]:Cement is an important building material, its application is very extensive. Cement bending testing machine is an important instrument for bending strength of cement samples. With the development of society, the original cement bending tester has been difficult to meet the needs of users in control, accuracy, data processing and so on. Therefore, a bending tester based on embedded Linux platform is proposed to improve the data processing ability and control accuracy of the system. The purpose of this paper is to design a measurement and control system which can collect signals with high precision and display them in real time. Based on the composition and development of cement bending tester, the advantages, disadvantages and development trend of bending tester are studied in this paper. In the process of system design, it is divided into two parts: hardware design and software design. The hardware design part, including power module, LCD module, USB module and so on, introduces the method of hardware system construction. Through the sensor to achieve the collection of measurement data, so as to analyze, process and display the data. In the process of software design, the installation process of Linux and the design of serial port driver are introduced. The man-machine interface uses Qt, to display the test results. In this paper, the measurement and control system of cement bending tester is designed based on ARM, the hardware selection and measurement and control circuit design are completed, the measurement and control software based on Linux system is compiled, and the whole system is tested. The measurement and control system designed in this paper, through modular design, realizes the purpose of measuring, processing and displaying the bending strength of cement, the accuracy of the measured data meets the requirements, the data processing ability is strong, and the accurate automatic control is realized, which has good real-time performance and achieves the expected effect.
【学位授予单位】：天津科技大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TQ172.6

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