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Stockpile Tracker
GUI Features








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The main user experience derives from a web-based
interface, as shown below.

Main intranet application web interface page
Figure 1 - Main intranet application web interface page

The GUI has three main areas:
logo bug  A data grid on the left is used to view or edit data on the right.
logo bug  A “Profile Graph” in the upper left shows a side view of the mound.
logo bug  A “Trend Graph” in the lower left shows total inventory changing over time.

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Visual Component 1: The Profile Graph

The Profile Graph
Figure 2 – The Profile Graph

Please note that the vertical axis does not use the same scale as the horizontal one, so the angle of the urea pile shown above appears exaggerated. In reality, it is 28º. The y axis is the height of the mound in meters. The x axis shows the position in meters along the length of the stockpile mound.

There are two important pieces of equipment whose positions are shown:
logo bug  The equipment (often called a “tripper car”) that deposits new material onto the mound. It’s shown as a circle positioned along the top.
logo bug  The scraper arm assembly responsible for removing material appears as a square along the bottom. The yellow bars along the base of the graph indicate which parts of the mound have been scraped since they were last poured.

The VCR-like buttons above the graph permit users to go backward and forward in time to show profiles of earlier or later instants. The Play button puts the application into a mode that always shows the latest profile, perfect for continuous monitoring.

The volume and mass shown at the top apply to the part of the stockpile visible in the graph, which changes if the user zooms and pans. Zooming limits the view to a subset of the full mound, in which case Stockpile Tracker will change the volume and mass figures to show only the amount available in the zoomed part of the mound.

graph shows volume and mass for selection
Figure 3 - If user zooms to select a region of mound, graph shows volume and mass for selection

The zoom feature is extremely useful for planning shipments, making it possible to see in advance whether a portion of the warehouse contains enough material.

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Visual Component 2: The Data Grid

Data Grid
Figure 4 – The Data Grid

This grid shows numerically the same data that is displayed visually on the Profile Graph. Editing is permitted (based on user privileges) but is usually unnecessary.

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Visual Component 3: The Trend Graph (Inventory)

Trend Graph
Figure 5 - The Trend Graph

On this graph, the x axis denotes time (hours, days, weeks – shown as timestamps including date), and the y axis shows the inventory. The graph rises during production and declines during shipping. Users may turn on additional trend lines to show shipping and production rates.

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Data Reconciliation
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   Introduction >
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Smart Objects
Stockpile Tracker
   Introduction >
   The Problem >
   What ST Provides >
   What Your Plant Needs >
   GUI Features >
   Goals of ST Design >
   Modeling Method >
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