【作者】 董晶；

【导师】 彭继慎；

【作者基本信息】 辽宁工程技术大学 ， 控制理论与控制工程， 2008， 硕士

【摘要】 在细致分析目前压铸机自动监测与控制系统的基础上,本文设计了以DSP为核心的控制器加后台监控软件的压铸机控制系统。简要叙述了控制器硬件设计,详细介绍基于Windows操作系统的人机界面应用软件的设计。重点讨论了控制器与VB程序之间的数据通讯问题,设计通过串行通信接口实现信息的实时传递与显示。人机界面部分采用功能强大的面向对象可视化编程语言Visual Basic 6.0进行开发,界面友好、美观,使用简单方便、易于掌握。另外,针对控制系统各关键元件的偶发故障问题,采用基于RBF神经网络的故障诊断方法,能够快速有效地判断控制系统中如传感器、开关、按钮、电磁阀等器件的故障信息,以及对操作者的误操作进行提示,为维修、维护提供了极大的方便。通过反复对软、硬件的调试、修改,本文研究的压铸机控制系统可以成功应用到各种型号的压铸机控制上。该系统的使用提高了压铸机的工作效率,具良好的人机界面和较高的性价比,对于提高国产压铸机的自动控制水平具有一定的理论和实践意义。更多还原

【Abstract】 After detailed analyzing the current automatic monitoring and control system of the die-casting machine, this article designs the die-casting machine control system that uses the DSP as its CPU, and it mainly designs software part about background performance test based on the graphical user interface in the development system. This article includes some description of the hardware design strategy of the DSP controller and detailed description about the development of the application software of man-machine interface based on the Windows operation system using personal computer as its carrier. It also emphatically discusses the data communication problem between DSP controller and VB program and provides a method of realization of the real-time transmission and display of the information by using serial communication interface. The man-machine part is developed by using the powerful object-oriented visual programming language Visual Basic 6.0, which has a beautiful and friendly interface and is easy to use and master.In addition, this article puts forward a method of fault diagnosis based on the RBF neural network, and it could conveniently and effectively detect the fault information on devices such as sensor, switch, button, electromagnetic valve and so on in the control system, so it provides assurance on safety production. It improves a great convenience for repair and maintainAfter repeated debug and modification of the software and hardware, the die-casting machine inspection control system designed in this paper could be applied to various types of die-casting machine control. This system improves the working efficiency of die-casting machine and possesses a friendly interface and a high performance-value ratio, so it has theoretical and practical significance for improving autmatic control level of China-made die-casting machine.更多还原