Real-time detection method for detecting mixture paving uniformity on bituminous pavement
The invention provides a real-time detection method for detecting the mixture paving uniformity on a bituminous pavement. According to the method, the color digital image of a paving pavement is shot in real time during the paving process of a bituminous mixture paving machine at a preset acquisitio...
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Zusammenfassung: | The invention provides a real-time detection method for detecting the mixture paving uniformity on a bituminous pavement. According to the method, the color digital image of a paving pavement is shot in real time during the paving process of a bituminous mixture paving machine at a preset acquisition height, a preset light source luminance and a preset illumination angle; subjecting the obtained color digital image to ashing, filtering, histogram equalizing, image binaryzation and morphological processing by adopting the MATLAB software; obtaining the static distance difference alpha 0 of aggregates of each particle size range in the bituminous mixture relative to the X-axis and the Y-axis, the sum alpha 1 of all static distance differences in each secondary area relative to the original center of the image, and the sum alpha 2 of all static distance differences in each secondary area themselves, and adopting alpha 0, alpha 1 and alpha 2 as indexes for evaluating the mixture paving uniformity on the bituminous pavement. According to the technical scheme of the invention, the paving uniformity of the bituminous mixture during the paving process can be simply, quickly and quantitatively tracked, detected and analyzed in real time based on the digital image processing technology. Meanwhile, the system software is accurate in operation, fast in analyzing speed, reliable in data and convenient in operation. |
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