基于Qt的水流量装置测控软件开发

发布时间：2018-07-09 19:35

本文选题：流量标准装置 + Qt　；参考：《天津大学》2016年硕士论文

【摘要】：流量标准装置的研究是流量计量与测试技术发展的重要内容。流量标准装置不仅应具有较强的检定流量仪表的能力,而且在工作效率、操作性、自动化程度、友好性等方面也面临着越来越高的要求。本课题以天津大学流量实验室的流量标准装置为研究平台,主要完成了以下工作。1、流量标准装置包含多种电气元件,构成了装置的控制部分,本课题首先完善了开关阀、调节阀、电磁流量计、步进电机及驱动器的布线和电气设计。2、流量标准装置不是采用下位机而是用研华运动控制卡实现控制,本课题分析了研华DAQNavi驱动的特点和使用方法,相对旧版本Adsapi32驱动的优点。对比了当前几种主流图形界面程序开发框架的特点,最终选用Qt开发测控软件。3、软件开发考虑了用户界面的友好性和美观性。本课题采用了QML和C++混合编程的思想:以Qt Quick开发主界面,使用Qt Style Sheet样式表美化子界面,用C++实现业务逻辑,使界面效果得以提升。4、实现装置的正常功能。在Qt环境下调用API与研华运动控制卡通信,控制各个电气元件工作,实现了计算机与电子称、变频器的串口通信,完成了流量标准装置的称重法检定过程,将采集和处理的数据存入数据库MySQL中。5、探索PLC控制步进电机进而控制换向器的方法。采用Qt开发上位机程序与西门子PLC通信,为以后使用PLC作下位机对流量标准装置进行控制奠定基础。
[Abstract]:The research of flow standard device is an important content of the development of flow measurement and testing technology. The flow standard device should not only have a strong ability to calibrate the flow meter, but also face a higher demand in the aspects of work efficiency, operability, automation and friendliness. This subject takes the flow Laboratory of Tianjin University. The standard device is the research platform, which mainly completes the following work.1. The flow standard device contains a variety of electrical components and constitutes the control part of the device. First, this subject has perfected the switch valve, the regulating valve, the electromagnetic flowmeter, the wiring and electrical design of the step motor and driver, and the electrical design of the.2. The flow standard device is not using the lower machine, but using the study. The control card realizes the control. This topic analyzes the characteristics and the use method of the DAQNavi driven by the Yanhua. Compared with the advantages of the old version of the Adsapi32 drive, the characteristics of several current main graphics interface program development frameworks are compared. Finally, the Qt development and control software.3 is selected, and the software development takes into account the friendliness and beauty of the user interface. The idea of mixed programming with QML and C++ is adopted: developing the main interface with Qt Quick, using Qt Style Sheet stylesheet to beautify the sub interface and realize the business logic with C++, so that the interface effect can be improved and the normal function of the device is realized. Under Qt environment, the API and the Yanhua movement are used to control the cartoon letters, and the work of each electrical element is controlled and the computer is realized. With the electronic name, the serial communication of the frequency converter has completed the weighing method verification process of the flow standard device. The data collected and processed into the database MySQL.5, exploring the method of controlling the stepper motor and then controlling the commutator by PLC. Using Qt to develop the host computer program and the SIEMENS PLC communication, in order to use PLC as the lower machine for the flow standard in the future. It lays the foundation for the control of the device.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TP311.52

【相似文献】