基于回转窑表面温度场的红外三维图像重建算法研究

Study of Reconstruction Algorithm of Infrared 3D Images Based on Rotary Kiln Surface Temperature Field

回转窑是工业生产中熟料煅烧的核心设备,生产过程中需要对其进行实时监测,防止温度过高引发事故。现代工业采用红外测温方法实时监测回转窑的表面温度,在监测过程中需要进行实时故障定位。传统方法对回转窑实时监测时,普遍使用二维图像显示回转窑的表面温度,这种热像图的直观性差,立体感不强。针对上述问题,提出了一种新方法,对回转窑的表面温度场进行三维重建,并以伪彩显示出回转窑整个表面的温度信息。实验表明,生成的回转窑温度场的三维立体模型比传统热像图的效果更好,更容易被工作人员辨识,有利于工业生产。

Rotary kilns are the core equipment for clinker calcination in industrial production.To prevent the accidents caused by local high temperature,they need to be monitored in production in real time.In modern industries,the surface temperature of rotary kilns is usually monitored by infrared temperature measurement methods in real time.But in the process of monitoring,the faults should be located in real time.Traditional real-time rotary kiln monitoring methods generally use two-dimensional images to display the surface temperature of rotary kilns.The thermal images obtained by these methods are poor in intuition and stereoscopic sense.To solve the above problems,a new method which can reconstruct the surface temperature fields of a rotary kiln in three dimensions and display the temperature information on the whole surface of the rotary kiln in pseudo color is proposed.The experimental results show that the three-dimensional model of the temperature field of the rotary kiln generated is better than traditional thermal images and is easier to be identified by operators.This is beneficial to industrial production.