Carlson HydroStar Manual - Página 5

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Pile Driver Position Measurements

Two critical measurements must be taken. These will allow HydroStar to determine the position of the

pile driver from the position of the two GPS antennas. The first is the angle between the line connect-

ing GPS1 to GPS2 (the x-axis in the drawing) and the line from GPS1 to the pile driver. An angle of

zero would mean the pile driver is in line with GPS2. The angle is measured counter-clockwise. The

angle should be expressed in radians. (3.14159 radians = 180 degrees) (To convert from degrees to

radians, multiply by 0.017453)

The second measurement is the distance from GPS1 to the center of the pile placed by the pile driver.

This measurement should be in the same units your project is in.

These two measurements should be set in the menu Options>Options>Navigation Options.

When the barge is displayed in HydroStar, it will have a set of four arrows added to it. These arrows

indicate where HydroStar considers the pile driver (or depth sounder) to be. If their position relative to

the barge is not correct, there is a problem. Either the barge is drawn incorrectly, or the angle and

distance specified under Navigation Options is incorrect.