A special software module was developed to extend the capability of the DP systems control functionality focused more on vessel maneuvering. Named “SmartPredict,” this module takes advantage of the DP system’s built-in mathematical model to provide advanced motion prediction capability for the vessel.
While most traditional prediction systems offer limited usability due to their inputs (see table), SmartPredict utilizes all of the parameters used for automated control by the DP adjusting them for the motion characteristics of the specific vessel. Inputs to the control algorithm include the vessel’s current heading and position as well as velocity and rate of turn and the associated accelerations; manual commands from the coordinated control joystick (3 axis); and finally the environmental input form the onboard wind sensor(s). All of these factors are continually evaluated to provide a constant update of the vessel path. Allowing the operator to see into the future provides a basis for making smarter and safer decisions about ship-handling, avoiding incidents like those recently shown in the media where improved navigational aids could have avoided property damage.
| Input and modeling |
Traditional |
SmartPredict |
| Current Position |
Yes |
Yes |
| Current Heading |
Yes |
Yes |
| Current Velocity |
Yes |
Yes |
| Current Heading rate |
Some |
Yes |
| Main propulsion commands |
No |
Yes |
| Thruster commands |
No |
Yes |
| Rudder commands |
Some |
Yes |
| Wind input |
No |
Yes |