与传统控制测量相比,GPS-RTK测量具有效率高、误差累积少(各流动站

与传统控制测量相比,GPS-RTK测量具有效率高、误差累积少(各流动站之间不存在误差累积)的优点,在一些精度要求不太高的控制测量中被广泛应用。<br><br>②GPS-RTK在碎部测量中的应用<br><br>用GPS-RTK进行地形测图碎部测量可以不进行图根控制而直接根据分布在测区的一些基准点进行各碎部点的测量。安置好基准站并输入必要已知数据(基准点坐标、参考点坐标等)后即可进行碎部测量。<br><br>GPS-RTK碎部测量与传统全站仪测量的人员配备不同,传统全站仪测量一个作业组至少3人,GPS-RTK测量只需一人,另一人看守基准站即可。传统全站仪测1:1000地形图时一天能测量约800点(困难地区只有其一半),而用GPS-RTK一天能测1200点以上,大大提高了测量效率。同时RTK测量可以全天候进行,并且可以多个流动站同时进行碎部测量,效率可以成倍提高,而传统全站仪测量虽然一组可以多人跑镜但只能一人操作仪器,因而其速度提高是有限的。此外,传统全站仪测图需频繁搬站,消耗了大量时间。而GPSRTK测量则不受基准站和流动站之间的地物影响,设一基准站后可在半径10 km内采集任意碎部点(在能观测到4颗以上GPS卫星的前提下)。

与传统控制测量相比,GPS-RTK测量具有效率高、误差累积少(各流动站之间不存在误差累积)的优点,在一些精度要求不太高的控制测量中被广泛应用。<br><br>②GPS-RTK在碎部测量中的应用<br><br>用GPS-RTK进行地形测图碎部测量可以不进行图根控制而直接根据分布在测区的一些基准点进行各碎部点的测量。 安置好基准站并输入必要已知数据(基准点坐标、参考点坐标等)后即可进行碎部测量。<br><br>GPS-RTK碎部测量与传统全站仪测量的人员配备不同,传统全站仪测量一个作业组至少3人,GPS-RTK测量只需一人,另一人看守基准站即可。 传统全站仪测1:1000地形图时一天能测量约800点(困难地区只有其一半),而用GPS-RTK一天能测1200点以上,大大提高了测量效率。 同时RTK测量可以全天候进行,并且可以多个流动站同时进行碎部测量,效率可以成倍提高,而传统全站仪测量虽然一组可以多人跑镜但只能一人操作仪器,因而其速度提高是有限的。 此外,传统全站仪测图需频繁搬站,消耗了大量时间。 而GPSRTK测量则不受基准站和流动站之间的地物影响,设一基准站后可在半径10 km内采集任意碎部点(在能观测到4颗以上GPS卫星的前提下)。

Compared with traditional control measurement, GPS-RTK measurement has the advantages of high efficiency and less error accumulation (there is no error accumulation between the flow stations), and is widely used in some control measurement with low precision requirements.<br>② Application of GPS RTK in the measurement of broken parts<br>GPS-RTK can be used to measure the broken parts of topographic map without root control, and directly measure the broken points according to some reference points distributed in the survey area. After the reference station is set and necessary known data (reference point coordinate, reference point coordinate, etc.) is input, the measurement of the broken part can be carried out.<br>GPS-RTK crushing measurement is different from the personnel of traditional total station measurement. At least 3 people in a working group are measured by traditional total station. GPS-RTK measurement only requires one person and another person is able to guard the benchmark station. When the traditional total station is measuring 1:1000 topographic map, it can measure about 800 points a day (only half of the difficult areas), while GPS-RTK can measure more than 1200 points a day, which greatly improves the measurement efficiency. At the same time, RTK measurement can be carried out all day long, and it can be measured by multiple mobile stations at the same time, and the efficiency can be doubled. While a group of traditional total station can run mirrors by more than one person, only one person can operate the instrument, so the speed increase is limited. In addition, the traditional total station mapping needs to be moved frequently, which consumes a lot of time. GPSRTK measurement is not affected by the ground objects between the reference station and the mobile station. After a reference station is set, any broken point can be collected within 10 km radius (on the premise that more than 4 GPS satellites can be observed).<br>