RTK Operating System And Its Application For Urban Surveying And Mapping Engineering

With the economic development of our country, we carry out many important constructions. With the development of the science and technology, the level of the engineer and technology also improve quickly. The epoch affects the process of the city's construction.The construction of the city compromises the modern technology. The development of the city and the application of new technology provides a very good development foundation. Because the traditional surveying and mapping had a long consuming and measure the possibility of error, it's just very time-consuming. The GPS and RTK have been widely used in every field. The basic principle of GPS survey is to use the position determined space satellite to be the observation target, measuring the distance from the station to the satellite to determine the coordinates of the station. The static measurement of GPS baseline vector network through multiple receiver synchronization observation form, using the error correlation in space and time, the relative position between the high precision determination of ground data. RTK technology is based on this error correlation, and the distance from the base station to the observation error or the coordinate measurement error is transmitted to the mobile station through the data link, correcting the station Star mobile station distance observations or coordinate values, improving the working accuracy and efficiency of the mobile station.RTK measurement can avoid the tedious measurement organization work and the long time data acquisition and the calculation work, can obtain the coordinates of the mobile station in real time. As a measurement method can obtain real-time centimeter level accuracy, and RTK technology can be used in precise navigation, measurement, construction lofting graph widely.This paper takes the GPS survey work in Tongzhou area of Beijing as an example, and introduces the application of RTK technology in city engineering survey and concrete operation process in detail, the application of RTK technology in urban engineering survey is discussed in this paper. Through the research results show that GPS RTK technology has been used as a mature method of operation, and is used to be highly effective, convenient and precise, it is recognized by the people. And is widely used in urban construction highway measurement, the electric power measurement, the measurement, etc. Therefore as a science and technology development, RTK measurement technique is used as a in our country at the forefront of technology that will have broader developing path.