Research on building measurement accuracy verification based on terrestrial 3D laser scanner

Abstract

The accuracy of terrestrial 3D laser scanners is mainly determined by the acc uracy of ranging and angle measurement. Therefore, the research of horizontal angle a ccuracy is very important. The current construction industry can develop at the fastest speed because of the advent of many advanced science and technology research and de velopment. The rational application of these science and technology to the constructio n industry can intuitively display the internal structure and external shape of the buildi ng. In front of people, it effectively guarantees the country's economic benefits and the people's property safety. The article studies the influence of distance, incident angle a nd target color on the accuracy of the scanner during measurement. Using the plane fitt ing method to analyse the accuracy, a qualitative analysis conclusion is drawn that as t he distance increases, the angle of incidence increases, which will cause the measurem ent accuracy of the ground 3D laser scanner to decrease.