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Lower table will be same as upper, grab angle not calculated. The average wire length for both winches is used to calculate the upper table. In principle the following combinations are possible: The wires can be rigged to the grab or bucket in various ways.
#Hitachi starboard wt 1 driver driver#
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The following XML tags are used in the xml file: The grab definition is used in the calibration and calculation so it is important to select the correct grab. The different grab types can be selected by the user in the setup page. This file is used to store one or multiple grab definitions. The driver automatically creates a grab definition XML file (named "GrabDefinitions.xml") in the support subfolder of the current project folder. The driver can decode the raw miscellaneous observations, various USBL observations that can be used to position the grab, the grab angle as a pitch observation and a flag observation that indicates if the grab is open or closed. It contains user interface that enables the user to set up the calculation and to perform the calibration of the wire length measurements.
![hitachi starboard wt-1 driver hitachi starboard wt-1 driver](https://i.ytimg.com/vi/YSOmv_jdxkU/maxresdefault.jpg)
The driver will calculate the corrected vertical distances from the forward sheave to the grab's upper and lower table and to the tips of the grab shell and output them as USBL observations. Hitachi Sumitomo Wire Crane (Grab Open-Close)ĭriver to decode the wire lengths and boom angle from the PLC of an Hitachi Sumitomo wire crane. Therefore it requires the hopper volume and current displacement from the IHC String as well as some user-defined fields. This driver can also compute the Tons Dry Solid (TDS) figure representing the load of the dredger using the generally accepted "Rijkswaterstaat" of the Netherlands - TDS formula.
#Hitachi starboard wt 1 driver manual#
When Manual design is used the driver sends two triangles that represent an area of 500x500 survey units around the node position. The driver selects the triangles that are located in an area around the last node position. The driver fetches the triangles from the design (manual, DTM/pro or Grid) and sends them to the IHC computer. A request for a number of TIN triangles is made by the IHC dredging computer via a TCP/IP connection. The following systems are usually added to a CSD setup:ĭriver to output a number of TIN triangles of the currently selected dredging design. Dredge status convention: 0=Unknown, 1=Trailing, 2=Sailing Loaded, 3=Dumping, 4=Discharging, 5=Sailing Empty.HdgPontoon & HdgLadder are duplicates and will contain the same data.Only Y-field of USBL observation is filled in.Pitch ladder = pitch pontoon + ladder angle, Roll ladder = roll pontoon.Only roll & pitch fields of PRH system filled in.Roll convention: +=stbd up, -=stbd down.Depths convention: +=above CD & -=below CD.Tide field is only filled when dredge result are valid and a tide value was used in computation.All distances and coordinates assume a survey unit set to meters.
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