Study And Application On Engineering Precision And Rapid Positioning Using Close Range Photogrammetry

Photogrammetry technology is developing rapidly, the traditional close-range photogrammetry is moving towards real- time photogrammetry. With domestic and foreign researchers deeply improve the measure theory and practice of photography, the photogrammetry technology has been widely used in various fields like military, aerospace measurement, digital city, and now more and more applied in the deformation monitoring, building design and other directions. In this paper, we use close-range photogrammetry technology, to measure nodes of the stadium for building walls in the study area and compared to data obtained by other means of measurement to evaluate the accuracy.The research was conducted by non-metric digital camera actual venue glass curtain wall construction. based on non- metric digital camera to measure the nodes of glass facade of a systematic program design for Q ingdao International Horticultural Plant Museum. First, performed camera calibration, to accurately determine the parameters of the experiment of the camera lens; Secondly, traditional photographic meas urement principle is based on the actual engineering applications, with the known coordinates of the site study area while using non-prism total station measurements and 3D laser scanning measurement, using three different methods of measurement for the sa me study area to obtain and analyze the measurement results of the three methods.The results show that the coordinate data points obtained by the close-range photogrammetry can be used for glass curtain wall construction of buildings in the study area, to meet the actual requirements like precision and speed requirements of the whole project. Therefore, the research done in this paper can be used in t he actual construction of walls, can provide timely and effective basis for the detection precision of construction work, the construction unit to provide decision s upport for intensive production. The accuracy of non-metric digital camera close-range photogrammetry work received is as well as the accuracy achieved by other means of measurement while its on-site control requirements are greatly reduced, and thus would be more suitable for engineering applications under similar conditions.