断面一体化系统在山区高速公路测量中的应用

Applications of the integrated system for the section measure in the mountain highways

根据道路设计信息,推导出线路坐标系下任意中桩点的坐标计算公式和横断面方位角,由计算得到的横断面方向指导野外GPS断面测量。在测量过程中引入Windows CE技术,采用嵌入式编程对GPS采集的数据实时进行处理,重点对GPS数据通讯模块、GPS数据实时显示模块、横断面碎步测量模块进行了设计和研究。解决了山区高速公路断面测量自由设站的难题,实现了断面图形实时动态显示、内外业处理一体化的功能。该系统用于沪蓉西高速路的测量,结果表明:采用RTK(real-time kinematic)技术的内外业一体化系统能够实现山区高速路外业测量和内业处理的一体化。

Based on road design information, we derived coordinates of arbitrary points in the pile and crosssectional azimuth which may guide global positioning system （GPS） surveying in section surveys. Also, we introduced Windows CE technology into the measurement process, using embedded programming for the GPS real- time data process. It emphasizes designing the functional components of GPS data communications, data displays and cross sectional surveys. The software system may be used to produce the liberal station, real-time dynamic display, and indoor and outdoor work processing. This system has been used in the Shanghai-Chengdu West Road Item. The results show that the integrated system of indoor and outdoor works for reabtime kinematic （RTK） surveying in a mountain highway could simultaneously process indoor surveys and outdoor data.