Application of satellite positioning system
11 geodetic measurements of various levels12 road and various line lofting13 underwater topographic survey14 crustal deformation measurement, dam and large building deformation monitoring15.GIS application16 construction machinery (tyre crane, bulldozer, etc.) control17 the application of precision agriculture GPS in road engineering is mainly used for the establishment of a variety of road engineering control network and the determination of external control points, etc.. With the rapid development of highway, puts forward higher requirements for the survey, due to the long lines of known points less, therefore, measured by conventional means of distribution network not only difficult, but it is difficult to meet the requirements of high precision. In the country has adopted GPS technology to establish high-precision control network line head, and then use conventional methods laid wire encryption. Practice has proved that the error in the tens of kilometers within the range of only about 2 cm, to achieve the accuracy of the conventional method is difficult to achieve, but also greatly ahead of schedule. GPS technology is also applied to the control of large bridge. Because no visibility, can constitute a strong network, improve the precision of points, but also very effective fulcrum for testing conventional measurement. GPS technology is also widely used in tunnel measurement, GPS measurement no visibility, reduce intermediate links, so the conventional method, high speed and high precision, which has obvious economic and social benefits.
Mainly for the ship, automobile, aircraft and other moving objects positioning navigation. For example:1 ocean navigation and incoming water diversion2 aircraft route guidance and approach landing3 vehicle autonomous navigation4 ground vehicle tracking and urban intelligent traffic management5 emergency rescue6 people travel and adventure7 personal communication terminal (with mobile phones, PDA, electronic map integration)8 time synchronization of electric power, post and telecommunication9 accurate timing of admission10 accurate frequency of admission
