TSHD Generic - Result Data Items

Selecting Result Data Items

Select items from:

Computations

Obviously not all these apply to dredging operations. The following are not considered here: Anchors, Catenary, Bargetrack, Eventing, Miscellaneous.

Deskewing means calculating a 'new' position (using SOG and COG) for the time of trigger. This trigger can be On Time, On Fix, On Node Result update or On System update.

Computations

These are the sub-items associated with a Computation. The need to select any one of them is remote in dredging.

The first entry is always [Priority List]. This means that the computation with the highest priority, as defined in the Controller's Computation Setup, will be used.
The rest of the list will show all available computations, as defined in the Controller's Computation Setup of the current selected QINSy database

Refer to Computations for further information.

Nodes

The first entry is always [Steered Node]. It can be changed if the position of the steered node is not required.
In our example the TSHD CoG and drag head CoG are needed.

Click on Result Data and then Nodes.

Click on

.

Select the node and the computation from which sub-items are drawn.

Select sub-items; in this case Easting, Northing and Height for each node selected.

These are all the sub-items available:

Modify sub-item Properties if necessary.

For example, choose which vertical datum to use for the Height observation:

Refer to Various for explanations of the various properties.

Refer to Nodes for further information.

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Line Offsets

A list with 10 entries. The first one is always the Controller's mainline.The other 9 are the Additional mainlines.
The actual mainline/additional mainline selection (POINT, LINE, ROUTE) is done in the Controller's Session Setup.

Click on Line Offsets.

Click on

.

Mainline is the default line. Select the Node to be reference to the mainline.

Select sub-items Distance Across, Distance Along, MP (meter point), and Speed Across.

These are the available sub-items:

Modify sub-item Properties if necessary. Refer to Various for explanations of the various properties.

Refer to Line Offsets for further information.

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Height Aiding

Click on Height Aiding.

Click on

.

Select the Vessel. The first entry is always [Reference Vessel]. This means that the first defined object will be used (with Object Id 1).

In Database Setup you will see 'square' icon in front of the vessel name.
The rest of the list will show all available objects existing in the current selected QINSy database.

Select sub-items to display. In our example these are:

Draft - The instantaneous actual water level above Vertical Datum.
Mean Actual Water Level - The Actual Water Level minus the heave of the object, so i.e. the actual water level without the swell influence.

These are the available sub-items:

Modify sub-item Properties if necessary. Refer to Various for explanations of the various properties.

Refer to Height Aiding for more information.

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Tide Results

The first entry is always [Reference Vessel]. This means that the first defined object will be used (with Object Id 1).
In Db Setup you will see 'square' icon in front of the vessel name
The rest of the list will show all available objects, existing in the current selected QINSy database.

These are the sub-items:

Tide: This is the tide component of the Height Aided Observation, on Survey Datum. This observation is calculated by the Height Aiding driver (which is always present in the windows taskbar).
Notice that this item is the same as item Tide under Height Aiding.

Refer to Tide Stategies for more information.

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Dredging Results

Lists all available dredging systems that exist in the currently selected QINSy database.

Click on Dredging.

Click on

.

Select the Dredge System and the dredge head.

Most sub-items below are 'connected' to a particular head, but some are head independent, i.e. it does not matter whether Head 1 or 2 is selected.
The presence of Head 2 depends on the type of dredger (backhoe, cutter, hopper, etc.), as defined in the Database Setup.

Select sub-items to display.

Notes on sub-items:

Sub-item

Description

General State

Item is head independent.

Sailing Empty: Hopper is sailing but empty
Dredging: Pumping up material
Sailing Loaded: Hopper is sailing, fully loaded with material
Dumping
Pumping Ashore
Unknown

Time

Item is head independent.

Update time of the dredging driver.

TDS

Item is head independent.

Tons Dry Solid in [tons]
Item is empty when TDS Calculation has been disabled in your template setup.

Load Volume
Item is head independent.

Actual Load Volume in [tons]
Item is empty when TDS Calculation has been disabled in your template setup.

Displacement
Item is head independent.

Actual Displacement in [tons]
Item is empty when TDS Calculation has been disabled in your template setup.

Empty Displacement
Item is head independent.

Empty Displacement in [tons]
Item is empty when TDS Calculation has been disabled in your template setup.

System Name

The name of the selected Dredging System, as defined in the Database Setup program.

Object Name

The name of the object on which the selected head is located, as defined in the Database Setup program.

Design State

Above: Head footprint is above design (including tolerance)
On Target: Head is on design level (within tolerance levels)
Over Dredge: Head is below design level (including tolerance). Usually bad news for contractor...
Not Used: Unknown/not used possible when grid data is not available

Intrusion Alarm

(Used to be known as Emergency Hoist Alarm in previous versions)

Value depends on the Horizontal Clearance Error, which is set in the Controller Session Setup, Dredging, Intrusion Detection page.

0 = No emergency. Dredge head is still far enough from the selected intrusion zone.
1 = Emergency hoist, head must be lifted immediately.

Same alarm as seen in Alert Display, Category "Dredging Result", Type: "Intrusion Detection: Error (Emergency Hoist)"

Collision Alarm

Value depends on the Horizontal Clearance Warning, which is set in the Controller Session Setup, Dredging, Intrusion Detection page

0 = No emergency. Dredge head is still far enough from the selected intrusion zone
1 = Warning, head enters the first zone.

Same alarm as seen in Alert Display, Category "Dredging Result", Type: "Intrusion Detection: Warning"

Clearance Status

A combination of Intrusion and Collision Alarms.

Value depends on the Horizontal Clearance Warning, Horizontal Clearance Error and/or Vertical Clearance, all set in the Controller Session Setup, Dredging, Intrusion Detection page.

Clearance Status	Alarm	Height Mode
0	ALL OKAY	2D - XY Position
1	WARNING	2D - XY Position
3	HOIST	2D - XY Position
0	ALL OKAY	3D - XYZ Position
5	WARNING	3D - XYZ Position
7	HOIST	3D - XYZ Position

Mixture Density

Current mixture Density from production sensor, (C-O) already applied

Mixture Velocity

Current mixture velocity from production sensor, (C-O) already applied

Trip Volume

Current volume inside the selected dredging system

Trip Load

Current load inside the selected dredging system

Current Production

Current production, derived from production sensors
Unit:

[Cubic meter In situ material/sec]
[Tons of dry material/sec]

SOG

Speed over ground of the reference node of the selected head object

COG

Course over ground of the reference node of the selected head

Heading

Grid heading of the selected head object

Center Easting/Northing/Height

Coordinates of the dredge head CoG.

Deepest Easting/Northing/Height

Coordinates of the deepest point of the dredge head.

Cutting Easting/Northing/Height

Coordinates of the cutting point of the dredge head.

Height Above Design

Actual height minus the design height at footprint of the selected head.
Positive value means the head is above level.
Negative value means head is below level.

Design can be manual or from a sounding grid.

Design Height

Height of design at footprint of the selected head.

Design can be manual or from a sounding grid.

Dredged Layer Thickness

Amount of removed soil.
Will be zero when head is above bathy layer.

PMO Valve Time

Total time that PMO (Poor Mixture Overboard) was open (Spilling overboard).