基于LabVIEW的三维可视化温度在线监测系统设计

3D Visualization Data Acquisition System Based on LabVIEW

摘要:

主要对低温真空球罐三维可视化温度在线监测系统进行介绍,为了直观显示低温真空球罐的整体温度信息,提高测试监控效率,在真空球罐外罐内壁、内罐外壁、夹层、垂直支架等部位安装温度传感器,通过LabVIEW数据采集板卡实时采集温度信号,在Pro－E中建立球罐三维模型,划分网格后导入到LabVIEW环境中,将采集到的温度信号通过空间插值算法映射到模型中,直观显示真空球罐的整体温度场分布信息,同时,通过LabVIEW增加场景对象、创建截断平面、绘图样式子VI开发了模型隐藏、剖分、透视以及拾取传感器点等多样化功能,采用三维可视化模型显示方法,增加了显示的整体性和相关性,提高了数据分析的效率,达到了对低温球罐进行实时监测的目的;该套在线监测系统已经投入使用,整体性能表现优异,尤其是直观新颖的三维可视化操作界面受到操作人员的一致好评。

Abstract:

D visualization temperature online monitoring system is introduced. In order to display the overall temperature information of low-temperature vacuum spherical tank and improve the efficiency of test monitoring,temperature sensors are installed in the inner wall of outer tank,the outer wall of inner tank,sandwich,vertical bracket and other parts of the vacuum tank. Temperature signal is acquired real-time through LabVIEW data acquisition card,3D model and mesh map of spherical tank is established in Pro-E and is imported into the LabVIEW environment. Temperature signal value is mapped into the model by spatial interpolation algorithm. The overall temperature field distribution information of vacuum tank can display intuitively. At the same time,a variety of functions are developed by the subprogram of increasing scene object ,creating clip plane and setting drawstyle,such as model hiding,partition,perspective and picking up sensor points and so on. Adopting the method of 3D visualization,the integrity and correlation of model displaying is increased,the efficiency of data analysis is improved,the goals is accomplished for real-time monitoring of low temperature vacuum tank. The online monitoring system has been accepted and put into use. Excellent overall performance,especially a visual and novel 3D visualization interface has been praised by operators. 