智能全站仪打桩定位模型及其实现

Piling Position Model and Its Implementation Based on Intelligent Total Station

对全站仪在近岸打桩定位中的应用进行了研究,得到了一种新的实用观测模型,模型中桩的方位根据船的方位确定,桩的坡度由船上的设备获得,通过测量圆桩侧边一个切线方向的水平角和竖直角,以及桩身上任一点的三维坐标对圆桩桩中心进行定位;通过测量方桩棱线上任一点的坐标对方桩桩中心进行定位.根据数学模型,利用EVC在基于WinCE的拓普康(GPT-7502)智能全站仪上进行了软件实现,观测结果可以用无线电传输到船上,船上利用掌上电脑(PDA)接收并以图形的方式给出偏差示意,指导打桩船移动,通过实际工程的现场测试,验证了模型和方法的正确性.

A research was made on the application of intelligent total station to piling position of near-shore,and a new practical model for piling position is introduced.Azimuth and tilt of piling can be obtained by an equipment on ship.For circle piling position,the tangential direction of the piling side（including horizontal angle and vertical angle） and the three-dimensional coordinates of one point on piling surface have to be surveyed.For square piling position,only one point on piling edge needs a survey.According to the mathematical model,the software is realized based on the EVC and the WinCE-based Topcon GPT-7502 intelligent total station.Observations can be transmitted to the ship by radio.Personal digital assistant（PDA） at ship receives the data and shows it by graphic,which can guide the movement of the piling ship.Field test on practical project verifies the correctness of the model and methods.