What is the relationship between satellites located far away in the sky and "skyscrapers" rising from the ground? At the 2023 Service Trade Fair, China's independently developed super high-rise Beidou high-precision satellite positioning receiver made its debut. Don't underestimate this blue box the size of a stationery box. With it, the elevation ranging accuracy of a kilometer high building can reach 150000 parts, and the plane error of a 600 meter high building can be reduced to 2 millimeters. "Zhang Shengliang, a director of the China Surveying and Mapping Society and a surveying and mapping expert from China Construction First Bureau, told reporters. During construction, the accuracy of building positioning measurement directly affects whether the building deviates and affects the quality and safety of the entire building. The precise positioning of super high-rise buildings has always been an industry challenge worldwide. Zhang Shengliang explained, "During construction, super high-rise buildings over 300 meters are often more affected by complex environments such as strong winds, heavy rain, and turbulence, and are prone to more severe building swaying. If traditional measuring instruments are used, the height of the measurement is limited, and the swing amplitude of the building is too large, which not only increases the difficulty of positioning, but also generates significant cumulative errors, leading to building deviation, The high-precision positioning technology independently developed by China has innovatively expanded the application of satellite technology in building construction, overcoming the problem of high-precision construction in super high-rise buildings. This blue box can receive signals from satellites at known locations, and the high-precision algorithm introduced can perform precise analysis on the received data to obtain accurate position coordinates. It can also be free from factors such as floor height, environment, and shaking, "said Zhou Yuqi, Deputy General Manager and Chief Engineer of China Construction First Bureau Construction and Development Company. The high-precision and stable positioning measurement has achieved high-precision construction of the world's super high-rise office building, Shenzhen Ping An Financial Center. At present, this "Chinese intelligent manufacturing" has gone abroad. (New News Agency)