Eye4Software Hydromagic Dredging Installing on a single ladder cutter dredger

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1 Eye4Software Hydromagic Dredging Installing on a single ladder cutter dredger INTRODUCTION Since version 7.0 of Eye4Software Hydromagic, it is possible to monitor the dredging depth and position of your dredging equipment. This version is included in both the demo and full version of the software, and to use all of its features, a separate license is required (your survey license will not work with the dredging version and vice versa!). REQUIRED HARDWARE In order to determine the depth of the dredge head additional hardware is required. Depending on the type of dredger, one or more incline, motion or pressure sensors will be used. Please note that Eye4Software only sells the software license. You can contact your local reseller for more information on the sensors to be used, or to request a quote for a complete system. HOW IT WORKS The dredging depth is determined by measuring the angle of the ladder. An additional offset may be added for the height of the dredge head. The angle is converted into a rotation vector which is multiplied by the height and length of the ladder. Additional calculations can be performed, when a pressure sensor for draft, or a motion sensor for the vessels roll and pitch is used.

2 CONFIGURING THE SOFTWARE To configure the hardware in the software, go to the devices tab in the preferences screen by selecting Options => Preferences from the main menu, followed by the selection of the Devices tab. Click the Add button and select the device driver for each hardware component you want to configure as showed on the right: Make sure that all hardware is working correctly. You can see data is received by the green check in front of the device name. To troubleshoot hardware, select the faulty device and click the Monitor button to have a look at the incoming data. If no data is present, please check cabling, connections and make sure the correct serial port and baud rate has been selected. If this does not help, please contact your reseller or our helpdesk for further support. The next step is to setup the dredging parameters by clicking the Dredging tab in the preferences window: First select the dredger type, which is in this case the Cutter Dredger Single Ladder option. Directly below this selection you will find three buttons: Configure dimensions and sensors, which is used to select the dimensions of the ladder, dredge head, static draft and the sensors to be used. The second button is Configure sensor offsets which is used to apply a fixed offset to the values received from the sensors. The third button is Configure sensor ranges and limits and can be used to limit the values received form the sensors.

3 CONFIGURING THE DREDGER PARAMETERS When clicking the first button, the dialog on the right appears. It is required to enter the correct settings here, otherwise the dredging depth might be off, or not being displayed at all! For the length and vertical offset, please refer to the first image of this document. You should enter the length of the two red arrows here (length from pivot point to dredge head and height from pivot point to bottom of dredge head). Please make sure you measure these distance relative to the pivot point of the ladder. Next, select which sensor has to be used for the vertical and horizontal motion of the sensor. This selection boxes will be empty if no sensor has been configured under the devices tab. When horizontal motion is not used, set this value to Do not use. When an angle returns a negative value in cases where a positive value was expected, just check the Reversed box to reverse the sign. The vessel and ladder shape files are the files used to construct the map and digging views of the vessel. The software can be used without these files, but the digging views showing the angle and position of the ladder will not be available. These shape files can be created using the Vessel Editor which is shipped with the product. The installation will contain a 3D shape file of a dredging vessel and ladder. Shape files can be imported from AutoCad DXF files as well. It is possible to create the shape files for you (small fee may apply!). Another imported parameter is the static draft. You have to enter the distance between the water surface and the pivot point of the ladder. The static draft will be subtracted from the depth calculated from the ladders dimensions and angle(s). The dredge head height can be used to add an additional height offset to the depth calculation.

4 COMPLETING THE CONFIGURATION It is recommended to restart the software after changing the configuration. After restart the correct dredging depth should be displayed.

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