Dredging vessels come in all shapes and sizes, and utilize several different methods of dredging, from suction to backhoe. Functionality in QINSy provides a full range of support for dredging vessels and excavators, from the smallest excavators to the largest cutter suction and trailing suction hopper dredgers (TSHD) in the world.
QINSy interfaces to, and communicate directly with, the dredging computer systems onboard the vessel, receiving all vital information needed to determine where the dredging tool(s) is in reference to the vessel and the area to be dredged. QINSy uses data from density and velocity sensors to compute the production of the vessel and signals from dredge status sensors for process automation.
QINSy employs a powerful algorithm to connect all moving parts of the dredger and the dredge tools, calculating the position of the dredge tool from measured angles and distances. The exact location of the dredge tool is computed and displayed continuously no matter the movement of the vessel itself. In configuring QINSy for the dredger, dredge tool models are defined so that the volume of dredged material removed or placed is accurately calculated.
Typically a pre-dredge survey is available to import into the QINSy “sounding grid”, as well as the design surface that prescribes the post dredge bottom shape. Both DTMs are imported into the sounding grid so that differences between the two can be visualized and
computed as dredging proceeds. Several different color maps are available to present views of the DTMs most convenient to the dredge operator.
Visualization of the dredging process is very important, for this matter QINSy includes various displays to view the dredger, the dredge tools, the excavated DTM and the design DTM in 2D (plan and profile views) and in 3D. As material is removed or deposited, QINSy updates the shape of the pre-dredge DTM in the sounding grid, thereby providing a realistic picture of excavated depth and overall progress. Simple two color coding can reduce the complexity of the process if desired by showing under-dredged areas in one color and completed areas in another color. The software includes a range of quality assurance tools that can smooth the entire operation and provide audio and visual alarms.
As a large percentage of dredging is done in busy traffic ways, QINSy is also used for navigation and situational awareness purposes. Interfaced to the onboard AIS transponder, all vessels within VHF range are shown on the same display as used for dredging or on a separate display if desired. This simple action significantly improves operational safety.
An Eventing Tool uses simple “hot” keys to record dredging actions as instantaneous, or periodic, events. Logs, reports and production figures are available for export.