The invention relates to the field of cage up-and-down stroke detection, in particular to a cage up-and-down stroke detection method for coal mine shaft overhaul. According to the method, the initial image and the broken wire characteristics of the surface of the steel wire rope are processed to obtain the preprocessed image without the broken wire, and the position characteristics of the surface of the steel wire rope are indirectly displayed in a steel wire rope oscillogram mode by calculating the sum of the pixel values of all the pixel points in the pixel window. Indirect calculation of the actual pitch of the steel wire rope is achieved through the mode of the pre-selection frame and the steel wire rope oscillogram, finally, the depth of the cage is accurately calculated through the combination of the number of newly-added poles on the steel wire rope oscillogram corresponding to the moving image and the actual pitch of the steel wire rope, and accurate detection and positioning of the position of the cage are achieved. The problems that in the shaft overhauling process, the mode that the stroke of a cage is controlled only through a steel wire rope displacement detection device has large errors, and overhauling personnel are difficult to find fault points rapidly and accurately are solved.
本发明涉及罐笼上下行程检测领域,具体为一种用于煤矿井筒检修的罐笼上下行程检测方法;本发明通过对初始图像和钢丝绳表面断丝特征的处理,以获得去除断丝后的预处理图像,利用计算像素窗口内所有像素点像素值之和的方式将钢丝绳表面的位置特征通过钢丝绳波形图的方式进行间接的显示,并通过预选框与钢丝绳波形图的方式实现对钢丝绳实际节距的间接计算,最后通过移动图像所对应的钢丝绳波形图上新增的极点的数量与钢丝绳实际节距结合对罐笼所在深度进行精确计算,实现对罐笼位置的准确检测和定位;解决了在井筒检修的过程中仅通过钢丝绳位移检测装置来控制罐笼行程的方式存在较大误差,容易导致检修人员难以快速准确的找到故障点的问题。
Cage up-and-down stroke detection method and system for coal mine shaft maintenance
一种用于煤矿井筒检修的罐笼上下行程检测方法及系统
2024-03-19
Patent
Elektronische Ressource
Chinesisch
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