System and method for guiding cargo transfer between two bodies

A system for guiding load transfer from a first body to a second body, the system comprising:

• at least one motion sensor located on at least one of the first and the second body, which is a floating vessel, for detecting respective body motion;
• a data processing unit comprising:
• at least one motion data acquisition module for receiving the detected motion data from the at least one motion sensor;
• at least one vessel motion prediction module communicably coupled to the at least one motion data acquisition module and configured to determine a predicted subsequent motion of the at least one of the first and the second body based on the detected motion data;
• a computation module communicably coupled to the at least one vessel motion prediction module and configured to:
• successively determine a load-target distance between a load and the second body while the load is descended towards the second body using a crane located at the first body;
• and
• a logic and recommendation module communicably coupled to the computation module and configured to:
• if any of the load-target distance is within a predetermined standby distance, generate a pause signal which is to recommend pausing descent of the load;
• and
• wherein the computation module is further configured to:
• successively determine a predicted impact on the load at landing time based on the predicted subsequent motion;
• and
• wherein the logic and recommendation module is further configured to:
• if any of the predicted impact is within a predetermined load impact limit, generate a resume-landing signal which is to recommend resuming descent of the load to land the load on the second body.

A method for guiding load lifting during load transfer from a second body to a first body, the method comprising:

• successively determining a slack sling length of a sling attaching a load located on the second body to a tip of a crane located on the first body while the sling is raised by a hoisting rope to reduce slack in the sling;
• if any of the slack sling length is within a predetermined standby slack sling length, generating a pause signal which recommends pausing raising of the sling;
• determining a predicted subsequent motion of at least one of the first and the second body;
• successively determining a predicted rope tension on the crane at lift-off time based on the predicted subsequent motion;
• and
• if any of the predicted rope tension is within a predetermined safe rope tension limit, generating a resume-lifting signal which recommends resuming load lifting from the second body.

A system for guiding load transfer from a second body to a first body, the system comprising:

• at least one motion sensor located on at least one of the first and the second body, which is a floating vessel, for detecting respective body motion;
• a data processing unit comprising:
• at least one motion data acquisition module for receiving detected motion data from the at least one motion sensor;
• at least one vessel motion prediction module communicably coupled to the at least one motion data acquisition module and configured to determine a predicted subsequent motion of the at least one of the first and the second body based on the detected motion data;
• a computation module communicably coupled to the at least one vessel motion prediction module, and configured to:
• successively determine a slack sling length of a sling attaching a load located on the second body to a tip of a crane located on the first body while the hoisting rope is being retracted to reduce slack in the sling;
• and
• a logic and recommendation module communicably coupled to the computation module and configured to:
• if any of the slack sling length is within a predetermined standby slack sling length, generate a pause signal which recommends pausing raising of the sling;
• and
• wherein the computation module is further configured to:
• successively determine a predicted rope tension on the crane at lift-off time based on the predicted subsequent motion;
• and
• wherein the logic and recommendation module is further configured to:
• if any of the predicted rope tension is within a predetermined safe rope tension limit, generate a resume-lifting signal which recommends resuming load lifting from the second body.