ashtech Z-FX, Руководство по эксплуатации и справочник

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Operations 67
O
p
erat
ion
s
Kinematic methods require receiver power remain on continuously throughout the survey.
By default, the SITE parameter is set to ????. The ???? SITE indicates to the
post processing software that the rover system is moving, about to move, or
has moved and is preparing to collect data on a point. When a SITE other
than ???? is entered, the post processing software assumes the rover system
is stationary on a point.
When the SITE parameter is changed to something other than ????, for
example PNT1, all of the data collected with the PNT1 SITE will be used to
establish the position of the new point. When data collection is completed on
a point, the SITE parameter must be changed back to ???? prior to moving to
the next point. If the SITE parameter is not changed to ???? prior to moving
the rover system, the processing software will attempt to use the data
collected while moving to determine the position of point PNT1. This will
cause point PNT1 to be in error.
To minimize this possible error, the
EPOCH COUNTER
parameter should be
used. When logging data at a point, the SITE will automatically change back
to ???? after the set occupation time is complete. This eliminates the need for
the user to change set the SITE to ????.
To further ease the user’s task, the SITE increments automatically between
points so that the user only needs to accept the new SITE instead of entering
it every time (see steps 8 and 9 below).
Enter in the
EPOCH COUNTER
parameter the amount of time, in epochs, that
you wish to collect data on the initialization point. The recommended
occupation time is five minutes if the Base and Rover are set up on a known
baseline. If the initialization baseline is not known, it must be established
through a rapid static survey. This normally requires an occupation time of
approximately 5-10 minutes. In this example we will assume we are setting
up a known baseline. With a recording interval of 5 seconds, the epoch
counter should be set to 6 epochs to collect 30 seconds of data.
The formula to determine epochs: If the record interval is 5 seconds (epoch for each record interval),
there are 12 epochs per minute. If on point for 10 minutes, you will collect 120 epochs.
a. From the main menu press
↑
< 2 seconds until
SURVCONF
is selected.
b. With
SURVCONF
selected, press
↓
>2 seconds to enter the submenu.
c. Within the
SURVCONF
submenu, press
↑
< 2 seconds repeatedly until
EPOCH COUNTER
is selected.
d. Press
↓
<2 seconds to place the receiver in edit mode.