Automatic ingot pulling control method based on visual liquid level detection

The invention relates to vacuum electron beam cold bed furnace smelting control, in particular to an automatic ingot pulling control method based on visual liquid level detection. The working intensity of personnel is reduced, and the control requirement of whole-course automatic ingot pulling without human intervention in the smelting process of the vacuum electron beam cold bed furnace is met. The method includes: acquiring a liquid level picture by an industrial camera; the monitoring host is used for analyzing and processing the liquid level picture; calculating time parameters of each curve section of the ingot pulling process through a central controller of the vacuum electron beam cold bed furnace; the ingot pulling servo controller controls the servo motor to achieve ingot pulling operation. 本发明涉及真空电子束冷床炉熔炼控制，尤其涉及一种基于视觉液位检测的自动拉锭控制方法。其降低了人员的工作强度，实现了真空电子束冷床炉熔炼过程中无需人为干预的全程自动拉锭的控制需求。包括：采用工业相机获取液位画面；利用监控主机对液位画面分析处理；通过真空电子束冷床炉中央控制器计算出拉锭工艺各曲线段时间参数；拉锭伺服控制器控制伺服电机实现拉锭操作。