Web-based reporting of downtime and production are acquired through a secure Internet connection.Maintenance personnel can monitor the dredge performance from remote locations.Files and updates can be transferred over the wireless system.Engineering and survey personnel don’t have to go to the dredge to retrieve permit data.Points of Interest: The dredge ladder winch and swing winches are automatically controlled by the PLC system to precisely maintain the required slopes and elevations designed by the local Palm Beach municipality Additionally, we have developed production and downtime collection and reporting database and tables which are viable remotely via any web browser. This allows for remote viewing, data collection and troubleshooting of the system. All of the data can be viewed through the Internet with proper log on authorization. All of the displayed data was collected in a local data-base and we incorporated a secure Ethernet Wireless system to remote the real-time and historical information to the remote office. Our logic in the PLC keeps the bottom of the dredge cutter moving smoothly to maintain the required slopes regardless of the pond design or dredge slope approach. The municipal slope and elevation requirements of the ponds were entered into the DredgePack software as 3D Face files. DredgePack displays real-time positioning of the dredge and cutter relative to the permitted area to the Operator. The final calculated location was sent to the DredgePack software through OPC communication capabilities. We developed custom calculations to provide location offsets (2 tens foot accuracy when validated) of the cutter location relative to the ladder trunion. The Trimble RTK GPS was setup to give position, tide and heading accurate to the dredge ladder trunion. We installed DredgePack software and instrumentation to supply ladder depth and cutter GPS location offsets to the on-board Programmable Logic Controller. Automatic Slope and Profile Control on a Cutter Suction dredgeĭescription: The customer required to have the ladder automatically follow a predetermined contour of the local municipalities geodesic pond designs for water storage.ĭetails: The dredge has a 30″ discharge pipeline with an 11′ diameter cutter and 4500 h.p.
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