A system and associated method for measuring a construction pit

A system for measuring a water-filled structure, the system comprising:

• a measurement device comprising,
• a sensor carrier with a first end arranged below a surface of water when the measurement device is in a state of use, and
• a second end arranged above the surface of the water when the measurement device is in the state of use,
• at least one measurement sensor positioned on the first end of the sensor carrier and configured to measure the water-filled structure by capturing measurement data, and
• an acceleration sensor and a prism unit;
• a tachymeter positioned outside of the water-filled structure and configured to be aimed at the measuring device, wherein a position of the tachymeter is determined using GNSS measuring points configured to receive GNSS signals from satellites in a global navigation system;
• and
• a control unit configured to determine at least one of (1) a current position of the measurement device and (2) an orientation of the measurement device, based on:
• (1) measuring data from the acceleration sensor;
• (2) the GNSS signals received by the GNSS measuring points;
• and (3) measuring data captured by the tachymeter, and further configured to match the at least one of the current position and orientation to the measurement data.

A method for measuring a water-filled structure using a measurement device, the method comprising:

• structuring the measurement device to comprise a sensor carrier comprising a first end and a second end, wherein the sensor carrier is configured to carry at least one measurement sensor;
• positioning the first end of the sensor carrier of the measurement device below a surface of water;
• measuring the water-filled structure with the at least one measurement sensor by capturing measurement data;
• determining at least one of (1) a current position of the measurement device, and (2) an orientation of the measurement device from measuring data from an acceleration sensor, wherein the measuring data comprises at least one of:
• (1) GNSS signals received by a GNSS receiver;
• and (2) measuring data from a tachymeter located on land and aimed at the measurement device;
• and matching the at least one of the current position and the orientation of the measurement device to the measurement data.

A method for measuring a water-filled structure, the method comprising:

• structuring a measurement device to comprise a sensor carrier including a first end;
• positioning the first end of the sensor carrier below a water surface;
• measuring the water-filled structure with at least one measurement sensor by capturing measurement data,
• determining at least one of a current position and an orientation of the measurement device using measuring data from an acceleration sensor based on:
• (1) GNSS signals received by GNSS measuring points for a position of a tachymeter;
• and (2) measuring data from the tachymeter aimed at prism apparatuses;
• and
• matching the at least one of the current position and the orientation of the measurement device to the measurement data.

A measurement device for measuring a water-filled structure, the measurement device comprising:

• a sensor carrier comprising a first end positioned below a water surface when in a state of use, and a second end positioned above the water surface when in the state of use;
• at least one measurement sensor positioned on the first end of the sensor carrier and configured to examine the water-filled structure by capturing measurement data;
• an acceleration sensor and a GNSS receiver configured to receive GNSS signals from satellites in a global navigation satellite system, wherein a position of the measurement device is determined using a control unit according to:
• (1) measuring data from the acceleration sensor, (2) the GNSS signals received by the GNSS receiver;
• and (3) the measuring data captured by a tachymeter aimed at the measurement device and wherein the position of the measurement device is matched to the measurement data.

A measurement device for measuring a water-filled structure, the measurement device comprising:

• a sensor carrier comprising a first end and a second end, wherein when in a state of use, the first end is positioned below water and the second end positioned above the water;
• at least one measurement sensor positioned on the first end of the sensor carrier and configured to examine the structure by capturing measurement data;
• and
• an acceleration sensor;
• and
• GNSS measuring points configured to receive GNSS signals from satellites in a global navigation satellite system and determine a position of a tachymeter, wherein at least one of (1) a position of the measurement device, and (2) an orientation of the measurement device is determined based on the measuring data from the acceleration sensor, the GNSS signals received by the GNSS measuring points, and the measuring data captured by the tachymeter aimed at the measurement device, and wherein the position of the measurement device is matched to the measurement data.