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04
Functional Usage
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4.2 Point Survey
(Survey)→(Point Survey) interface, modify the rod height to be consis-
tent with the actual one, and the bubble can be centered to measure.
1
If you want to perform tilt measurement, click the tilt icon on the (point
survey) interface to enable the tilt measurement function. At this time, it
will prompt the tilt measurement initialization. Follow the instructions
on the handbook interface to initialize. After the prompt is completed,
the tilt icon will change from red to green. Inclination measurement can
be performed.
2
After the measurement,
the data will be auto-
matically saved in the
coordinate point library.
3
the accuracy meets the
requirements. If automat-
ic pairing is selected, the
GNSS point name mea-
sured on the control point
needs to be saved the
same as the control point
name. After the parameter
calculation is completed,
the job can be performed.
When there are only two control points, it is necessary to simply evalu-
ate the correctness of the coordinates of the control points through the
scale factor (0.9999 < scale factor < 1.0001) .
The parameter calculation operation is as follows:
Input control point coordinates: (Project) →(Coordinate Point
Library) → click “+” in the lower right corner→(Type in) → point
name, code (optional), check control point for attribute type, and
coordinate type as local plane coordinates → Enter the coordinates
of the three control points in sequence → OK. After the coordinates
are input, a detailed check must be done to avoid input errors and
subsequent conversion problems.
①
②
③ (
Collect the coordinates of the control point: on the (Survey) → (Point
Survey) interface, click the button to collect the coordinates to
collect the coordinates, and pay attention to keeping the rod height
consistent with the actual one.
(Tools) → (Parameter Calculation), click Add in the lower right
corner, select manual pairing, select the corresponding control point
from the (Control Point) library (the known control point entered in
the point library before) or directly input, (GNSS Point). Select the
point measured on the known control point from the library, select
the horizontal and vertical for the (Correction method), and add the
control point data cyclically according to this method. Click (Set-
tings), and the coordinate conversion method can choose plane
correction + elevation fitting, seven parameters or seven parameters
+ plane correction + elevation fitting. Elevation fitting method is
selected automatically, (OK). Click (Calculate) to view the horizontal
residual (the residual should be within 2 cm), and click (Apply) after
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