Remotely Controlled Survey
Imagine you have to perform a survey with one small vessel that is big
enough to accommodate pilot and necessary surveying equipment (GPS,
echosounder, motion sensor, Left Right indicator, laptop computer).
Obviously, the small vessel is not spending much fuel, it moves easily,
does not require any additional crew member. Unfortunately, there is
not enough space for somebody to
concentrate on the surveying business.
The possible answer is remote surveying with an additional survey unit
located on nearby bigger vessel or in
a car along the shoreline. The current version of
HYPACK® supports such a situation. It requires additional hardware (one
computer, two radio modems, one additional comport for moving unit) and
software (two device drivers).
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The operator on the Moving Unit can see only the left/right
indicator and eventually
the on/off line signal. His goal is to keep the left/right position as
close to the center as possible. The surveyor in
the Stationary Unit receives positions from the Moving Unit and makes
the decision to start/suspend/end the survey. Every event ( start/end
survey, switch/swap line) on
the Stationary Unit is forwarded to the Moving Unit and interpreted by
the output device driver.
It is important to note that the Moving Unit receives and saves all surveying data. The question is would
it not be cheaper to get rid of
HYPACK® on the Moving Unit and send all data by radio modem to the Stationary Unit.
Obviously, it is cheaper but we are going to make the radio modem very busy and that can result in loosing some data.
Additionally, the operator on the Moving Unit is not going to have a left/right indicator position
which might cause wasting of surveying time.
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