火炮在连续射击过程中，炮膛内壁温度持续积累升高，当其温度超过全可燃药筒燃点时具有较高的安全隐患。介绍了一种基于红外热成像技术的炮膛测温方法与装置。叙述了该装置的组成以及测温基本原理与流程；分析了火炮连续射击换弹的过程，炮膛测温装置利用边缘检测、轮廓提取与识别判断等图像处理技术，自动分析有效测温时间段与目标区域；利用根据最小二乘法标定好的解算曲线，实时确定目标区域的最高温度值与平均温度值，并将温度数据及时上传至火炮控制系统，以判断是否换弹或击发，可有效提高火炮连续射击过程中的安全性。
Abstract
During the continuous launching of gun, the temperature of inside wall of gun bore increases substantially, which will cause a high security risk when the temperature exceeds the ignition point of all combustible cartridge. An application and device of infrared thermal imaging technology in gun bore temperature measurement was introduced, included the composition and temperature measurement principle of the device. Combined the course of replacing ammunition during the continuous launching process, the image processing techniques such as edge detection, contour extraction, and identification judgment were used in the gun bore temperature measurement device, it could automatically analyze the effective time and the target area of temperature measurement. Based on the resolving curve calibrated by least-square method, the maximum temperature and average temperature of the target area could be determined, and the device reported the temperature data to the gun control system in real time for it to determine whether to replace ammunition or strike, which could effectively improve the safety of gun during the continuous launching process.
关键词
炮膛 /
最小二乘法 /
图像处理 /
红外热成像
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Key words
infrared thermal imaging /
image processing /
least square method /
gun bore
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