| With the rapid development of science and technology, high-precision measurement technology is required in research and industrial production. As the traditional measurement programs and measuring equipment have been unable to meet the needs of modern industry and scientific research, the new measurement technology, measurement programs and equipment became a focus.By reviewing the relevant technical information, documentation and analyzing advanced measurement techniques, this paper designed an indoor precision positioning3D testing by near-infrared GPS measurement system for measuring in high speed, high-precision, large-scale and large amount of data. The main functions are:real-time monitoring, mobile navigation, automated assembly, the spatial three-dimensional measurement of large parts and reverse engineering. This paper provided a detailed discussion on its measurement principle and design, proposed an application program matched with the use of laser radar, and analyzed the stability errors and the causes. |