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The gas pressure of SF6 circuit breaker working in power system is a critical real-time monitoring parameter. In this paper, bicubic interpolation, Otsu, morphological filtering and Goertzel algorithm are studied on FPGA. In particular, the method HVPL is proposed. Segmentation, extraction and number identification are realized for the SF6 pressure gauge image by applying these strategies, such that...
The lubricating oil pressure of ball mill in ore dressing plant is a critical real-time monitoring parameter. In this paper, bilinear interpolation, DoG filter, Marr-Hildreth edge detector and watershed algorithms are studied on FPGA. In particular, the algorithm HVPP is proposed. Segmentation, extraction and number identification are realized for the pressure pointer dial image by using these algorithms,...
Bicolor water level gauge is the important equipment for industrial boiler. Machine recognition of water level image makes the traditional video monitoring system more intelligent. In this paper, the recognition algorithms such as improved BP neural network and feature matching are studied and compared. Experiments show that the recognition rate of latter approach is up to 100% with high identifying...
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