前方交会平差系统在大坝外观变形监测中的应用

针对大坝外观变形监测精度要求高、作业量大等特点,在测量机器人采集外业数据的基础上,以Visual Basic编程语言和Access数据库为工具开发了前方交会平差系统。解决了观测手簿生成、数据预处理、历史数据提取、变形曲线图绘制等实际应用问题,初步实现了大坝前方交会测量的内外业一体化。详述了该系统开发过程中的几项关键技术问题以及工程应用实例分析。

Application of Forward Intersection Adjustment System to Dam External Deformation Monitoring

Forward intersection is the main method for dam external deformation monitoring.In accordance with the high precision and large workload of dam deformation monitoring,Visual Basic programming language is combined with Access database technology to develop the forward intersection adjustment system based on the collecting data of surveying robot.Many practical application issues are solved with the system,such as the generation of observation hand book,the preprocessing of data,the collection of historical data,the drawing of graphs,etc.So the work efficiency is improved,and the integration of indoor and field work in forward intersection survey of dam is accomplished.Several key technical problems in the system development process are described and an example of engineering application is analyzed in detail.