Analysis of influence factors of machine visual instrument in surface settlement monitoring of open-cut station project

In this paper, a open-cut subway station project in Beijing is taken as Beijing. By analyzing a large amount of monitoring data, the factors affecting the accuracy of machine vision instrument are analyzed. The influence degree of each factor on the machine vision instrument is quantified by calculating the correlation coefficient. The results show that light intensity, distance and vibration are the main factors affecting machine vision instrument, while temperature, humidity, air quality and other factors have little influence on instrument accuracy.