Error Analysis of Ramming Settlement Measurement with Monocular Vision Method
To address the problems of manual measurement of ramming settlement such as poor accuracy,low efficiency and high risk,the monocular vision method is used to realize the real-time and high-efficiency measurement of ramming set-tlement.To verify the effectiveness of this method,the ram-ming settlement accuracy evaluation model is established based on the ramming settlement calculation model and the er-ror propagation law.The error sensitivity analysis is carried out,and some suggestions are given to improve the accuracy of ramming settlement measurement.The results show that the parameter which has the greatest impact on the measure-ment accuracy is the camera pitch angle,and the feature point recognition error is the main source of the measurement error.The engineering results show that the mean square error of the ramming settlement is±28.46 mm,which meets the ac-curacy requirements of the measurement error of ramming set-tlement at the engineering site,and has great promotion value.
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