Real-time monitoring of changes in building tilt angle using double square artificial marks

Abstract

To monitor changes in building tilt angles more accurately and efficiently and to safeguard the people's safety and property, a new tilt angle monitoring method was proposed in this paper. This method adopts double square artificial marks and a plumb line determined by MATLAB to record changes in the building tilt angle based on image processing technology. Two black square artificial marks with the size of 10 mm × 10 mm were placed near the side of the plumb line. A digital camera was adopted to collect tilt images which were saved in the computer. The tilt images were successively subjected to image greying, binarization, denoising, image segmentation and pixel calibration. Finally, the true length of a single pixel and tilt angle change value would be obtained. The experimental results showed that the accuracy of the method was 96% higher than the manual method. Compared with traditional manual methods and three-dimensional scanning monitoring methods, the advantages of this method are that the equipment used is relatively cheap, the image calculation workload is small and is suitable in dangerous working conditions. In conclusion, the proposed technique could accurately, concisely and effectively calculate the changes in building tilt angle and improve work efficiency.

Real-time Monitoring Method of Insulation Status of Photoelectric Composite Submarine Cable based on Thermoelectric Coupling

“…Therefore, this paper combines the conventional partial discharge monitoring method through the optimization of the traditional process and the introduction of the thermoelectric coupling model to identify the parameters of the photoelectric composite submarine cable. For the interference of the conventional way in terms of noise, a filtering algorithm is used to discretize the noise of the discharge signal and improve the processing effect of the discharge signal [17]. The major research challenge is as follows:…”