Detection system for coal mine electrical inspection instrument with digital display based on machine visio
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摘要: 针对人工核定煤矿数显电测量仪表时存在的检测效率低、劳动强度大、受人主观因素影响等弊端，设计了基于机器视觉的煤矿数显仪表自动检测系统。该系统通过控制数显电测量仪表上电全显示与相机录像获取开机过程，使用亮点统计方式识别全显帧，采用模板匹配完成仪表显示质量的自动判定，并通过穿线法字符识别自动判定其测量精度。工业样机实验结果验证了该系统的有效性。Abstract: In view of problems of low measurement efficiency, high labour intensity and being influenced by subjective factors in manually calibrating coal mine electrical inspection instrument with digital display, an automatic inspection system for coal mine electrical inspection instrument with digital display was designed based on machine vision. The system controls power on of the instrument and a video to get booting process, and uses high lights statistics mode to identify key display frame of the electrical inspection instrument, uses template matching to complete automatic identification of the display image, and uses digit recognition with threading method to detect the measurement accuracy automaticly. Validity of the designed system is verified with experiment results from industrial prototype system.
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