Setting up a live data feed

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After defining a connection to a remote server in InfoWorks WS Pro,

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it is time to give your live data configuration the information it requires to find feeds within the server,

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which, in this example, is the Bridge CSV database.

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With the Live Data Configuration open, click the Live Data Feed tab.

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There are two ways to set up the feed tab: manually or by using a live data CSV file to do it automatically.

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To set the feed tab up manually, click the cell in the first row in the Feed Name column,

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and type in “189435”.

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In the Connection column, expand the drop-down and click Bridge,

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which is the connection name chosen earlier.

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In the first row of the External Units column, expand the drop-down and select l/s (liters per second).

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Set the Offset to 0 and the Factor to 1,

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as this example requires no adjustments to the input values.

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Expand the drop-down in the Time-step column and click 15 Mins.

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Set the Time Window to 15.

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In the Adaptor column, select Generic from the drop-down.

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Then, in the Table Name drop-down, select M189435.csv.

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Notice that the empty cells that do not require information are now grayed out.

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To set up the feed tab automatically using a live data CSV file,

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first click the cell in the second row of the Feed Name column.

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In the Model Group window, right-click the Live Data Configuration and select Update > From CSV....

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In the Import / Update from CSV Data dialog, click OK.

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A file navigation window opens.

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Select Live Data.

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Select the file named BridgeTownLiveData.csv, and then click Open.

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The file navigation window reopens to allow you to select another file,

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but this is the only one for this example, so click Cancel.

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A window opens, showing the results of the CSV data import

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and notifying you that this process created new objects in the Live Data Feed.

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Click the X to close this window.

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In the Live Data Feed tab, new feeds—including all required information—are listed.

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This is a much simpler way to populate this tab, especially if you are using multiple feeds.

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Note the Offset and Factor columns in the grid.

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Offset and factor simply reconcile differences between the raw data coming in through a telemetry system

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and what a model is expecting.

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The Offset is a value to be added to all telemetry data in the feed.

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This is used to adjust the positioning or reference point of the incoming data.

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For example, a logger might be recording pressure that is a representation of the pressure in relation to the logger’s position,

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which may need to be adjusted to represent the pressure in relation to sea level.

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The Factor is a multiplication factor for adjusting all telemetry data in the feed to account for known inconsistencies

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and uncertainty in the incoming telemetry data,

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such as a systematic under- or over-representation.

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It applies only to live data points coming from files.

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For example, models typically measure reservoir depth from bottom to top,

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when a telemetry sensor may actually measure it the other way around.

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The following steps are no longer mandatory, as Live Data Feeds can now be linked to model objects.

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But, to populate the Live Data Point tab;

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Click the Live Data Point tab.

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In the first cell under Live Data Point ID, right-click and select Add live data feed.

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In the Choose Telemetry Point window, click Select All, and then click OK.

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The Live Data Point table automatically populates with the same data you entered into the Live Data Feed table.

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Now that the live configuration is complete for the database,

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the next step will be to link it to the network,

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so that you know where in the network these points are.