The main parts and working principles of the IP/TV technology are introduced and the main functions and the technology characteristic are also given in this paper.

Study on Application of GPS-RTK in Surface Movement;

The Application and Practice of GPS Technique Slippery and Transform Progno sticate on Ground;

The application prospect of GPS technique in highway survey;

The developing process of GPS technique, acoustic positioning technique and multi-beam surveying technique are expounded.

Application of GPS technology in slope monitoring of Shuichang iron mine;

The application of GPS technology in survey design of highway engineering;

Application of GPS technology to the engineering deformation monitoring;

GPS RTK technique adopts carrier phase real-time kinematics differential technology for relative positioning.

Influenced by self gravity,wind and cantilevered stayed cable,cantilevered steel box girder of large-scale cablestayed bridge can vibrate in the installation process,its regime characteristics are in real-time monitoring with GPS RTK technique,and it has important significance for construction control of bridge.