传统的大地测量、工程控制测量采用三角网、导线网方法来施测,不仅费工费时

传统的大地测量、工程控制测量采用三角网、导线网方法来施测,不仅费工费时,要求点间通视,而且精度分布不均匀,且在外业不知精度如何。采用常规的GPS静态测量、快速静态伪动态方法,在外业测设过程中不能实时知道定位精度。如果测设完成后,回到内业处理后发现精度不合要求还必须返测。而采用GPS-RTK来进行控制测量,能够实时知道定位精度,如果点位精度要求满足了,用户就可以停止观测了,而且知道观测质量如何,这样可以大大提高作业效率。如果把GPS-RTK用于公路控制测量、线路控制测量、水利工程控制测量、大地测量则不仅可以大大减少人力强度、节省费用,而且可大大地提高工作效率。测一个控制点在几分钟甚至几秒钟内就可完成。在过去测地形图时一般首先要在测区建立图根控制点,然后在图根控制点上架上全站仪或经纬仪配合小平板测图。现在发展到外业用全站仪和电子手簿配合地物编码,利用大比例尺测图软件来进行测图,甚至于发展到最近的外业电子平板测图等等,都要求在测站上测四周的地形地貌等碎部点。这些碎部点都要求与测站通视,而且一般要求至少2～3人操作,需要在拼图时一旦精度不合要求还得到外业去返测。现在采用GPS-RTK,仅需一人背着仪器在要测的地形地貌碎部点呆上3～5秒钟,并同时输入特征编码,通过手簿可以实时知道点位精度,把一个区域测完后回到室内,由专业的软件接口就可以输出所要求的地形图,这样用GPS-RTK仅需一人操作,不要求点间通视,大大提高了工作效率。采用GPS-RTK配合电子手簿可以测设各种地形图,如普通测图、铁路线路带状地形图的测设、公路管线地形图的测设、配合测深仪可以用于测水库地形图、航海海洋测图等等。

传统的大地测量、工程控制测量采用三角网、导线网方法来施测,不仅费工费时,要求点间通视,而且精度分布不均匀,且在外业不知精度如何。 采用常规的GPS静态测量、快速静态伪动态方法,在外业测设过程中不能实时知道定位精度。 如果测设完成后,回到内业处理后发现精度不合要求还必须返测。 而采用GPS-RTK来进行控制测量,能够实时知道定位精度,如果点位精度要求满足了,用户就可以停止观测了,而且知道观测质量如何,这样可以大大提高作业效率。 如果把GPS-RTK用于公路控制测量、线路控制测量、水利工程控制测量、大地测量则不仅可以大大减少人力强度、节省费用,而且可大大地提高工作效率。 测一个控制点在几分钟甚至几秒钟内就可完成。 在过去测地形图时一般首先要在测区建立图根控制点,然后在图根控制点上架上全站仪或经纬仪配合小平板测图。 现在发展到外业用全站仪和电子手簿配合地物编码,利用大比例尺测图软件来进行测图,甚至于发展到最近的外业电子平板测图等等,都要求在测站上测四周的地形地貌等碎部点。 这些碎部点都要求与测站通视,而且一般要求至少2～3人操作,需要在拼图时一旦精度不合要求还得到外业去返测。 现在采用GPS-RTK,仅需一人背着仪器在要测的地形地貌碎部点呆上3～5秒钟,并同时输入特征编码,通过手簿可以实时知道点位精度,把一个区域测完后回到室内,由专业的软件接口就可以输出所要求的地形图,这样用GPS-RTK仅需一人操作,不要求点间通视,大大提高了工作效率。 采用GPS-RTK配合电子手簿可以测设各种地形图,如普通测图、铁路线路带状地形图的测设、公路管线地形图的测设、配合测深仪可以用于测水库地形图、航海海洋测图等等。

The traditional geodetic survey and engineering control survey use triangulation network and traverse network method to survey, which not only costs time and labor, requires intervisibility between points, but also has uneven accuracy distribution, and does not know the accuracy in the field. Using the conventional GPS static measurement and fast static pseudo dynamic method, the positioning accuracy can not be known in real time in the process of field survey. If it is found that the accuracy does not meet the requirements after the survey is completed and returned to the office, it must be measured again. Using GPS-RTK for control measurement can know the positioning accuracy in real time. If the point accuracy requirements are met, the user can stop the observation and know the observation quality, which can greatly improve the operation efficiency. If GPS-RTK is used in highway control survey, line control survey, water conservancy project control survey and geodetic survey, it can not only greatly reduce the labor intensity and cost, but also greatly improve the work efficiency. Measuring a control point can be completed in a few minutes or even seconds. In the past, when surveying topographic maps, it was generally necessary to establish the root control points in the survey area, and then use the total station or theodolite on the root control points to coordinate with the small plate mapping. Now the development to the field with total station and electronic hand book with ground coding, the use of large-scale mapping software for mapping, and even the development to the recent field electronic flat mapping, etc., all require to measure the surrounding topography and other parts on the station. These parts are required to be intervisible with the station, and generally require at least 2-3 people to operate. Once the accuracy of the jigsaw puzzle is not up to the requirements, it needs to be measured by the field. Now using GPS-RTK, only one person needs to carry the instrument on his back and stay for 3-5 seconds at the broken points of the topography to be measured, and input the characteristic code at the same time. Through the manual, the point accuracy can be known in real time. After measuring an area, he can return to the room, and the required topographic map can be output by professional software interface. In this way, using GPS-RTK only needs one person to operate, and there is no need for intervisibility, Greatly improve the work efficiency. GPS-RTK with electronic hand book can be used to survey all kinds of topographic maps, such as general mapping, strip topographic map of railway line, topographic map of highway pipeline, topographic map of reservoir, marine mapping and so on.<br>