NovaStar 5 Training Lesson / Stations and Points Calibration Computation

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Overview
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NovaStar5 Stations
NovaStar5 Points

Overview

This lesson explains how to define a new station, define a new point corresponding to data collection sensor, and configure the calibration data so that sensor data are properly collected.

Estimated completion time: ? minutes

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Need to mark out the address for the machine so that people don't try to hit that machine.

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NovaStar5 Base Station Software

Menu on left side

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NovaStar5 Stations

Station List
Station Poll
Station Type List

When a station is created you must assign a type so we usually define station types first.

Station Poll allows for manual polling of stations.

Station Type List

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Do we need a separate station type for each type of transmitter ... no.

We do need a separate station type for different telemetry modes:

Legacy ALERT
ALERT2
Satellite Orbcomm
Satellite Hughes Net
GOES
Web Page

Station Type Edit

Station List Details

Allows one to toggle on and off the various parameters for a station and provides sorting functionality

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Station List Add and Edit Buttons

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Station List Add

Puts the user into a Blank Station Add/Edit Screen ... .

Enter new station parameters and then click on Apply... .

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Station List Edit, Copy, and Apply

When finished with edits must click on the Apply button for the edits to take place.

Puts the user into the Station Edit screen for that station ... .

Click on the Copy button to make a copy of this station then we can edit from there to create a new station ... .

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Station Edit

Legacy ALERT

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ALERT2

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USGS Web Page

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Satellite

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NovaStar5 Points

Point List
Point Type List

Points represent sensors that are installed at a station. NovaStar5 database tracks data time series through point ID. Since the point type is required to define a point we usually define point types first.

Point Type

Point Type List

A listing of all the point types defined in the system.

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Point Class Precipitation - Counter

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Point Type Water Level - Analog

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Point Type ALERT Wind - Direction

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Point Type ALERT Wind - Speed

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Point Type Status

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Point List

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Point List Details

Allows one to toggle on and off the various attributes for a point and provides sorting functionality.

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Point List Add/Edit

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Point List Add

Puts the user into a Blank Point Add Screen... .

Enter new point parameters and then click on Apply to save.

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Point Edit

Puts the user into the Point Edit screen for that station ... .

Click on the Copy button to make a copy of this point then we can edit from there to create a new point ... .
When finished with edits must click on the Apply button for the edits to take place.

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Parameters - ALERT - Precipitation

Select point type.
Remote ID - the ID being transmitted from the field.
Point ID - the ID in the NovaStar5 database that the data should be written to ... typically the same as the Remote ID.

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Parameters - ALERT2 - Precipitation

Select point type.
Remote ID - the ID being transmitted from the field ... in the case of ALERT2 is the Sensor ID.
Point ID - the ID in the NovaStar5 database that the data should be written to ... typically the same as the Remote ID.

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Parameters - ALERT - Water Level

Select point type.
Remote ID - the ID being transmitted from the field.
Point ID - the ID in the NovaStar5 database that the data should be written to ... typically the same as the Remote ID.

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Parameters - ALERT2 - Water Level

Select point type.
Remote ID - the ID being transmitted from the field ... in the case of ALERT2 is the Sensor ID.
Point ID - the ID in the NovaStar5 database that the data should be written to ... typically the same as the Remote ID.

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Data Checking

Change - maximum allowable change from last value in engineering units.
Upper limit - maximum value allowed
Lower limit - minimum value allowed
No report interval - maximum allowable time between reports
Change limit/interval - maximum allowable change in specified interval
Compress interval - remove duplicate reports within this interval from time series
Out of service - take a point out-of-service rather than the entire station

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Revalidate

Quiet - debug level of output shown ... how verbose do you want the output
Force - force an update of all data ... default update only when changed
Digits - number of digits to right of decimal point for scaled data display
Computation - re-compute rating after validation is done

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Calibration

Every sensor has an associated calibration

Legacy - used to convert raw integer data to engineering value
ALERT2 - may not be needed but must still enter values

Important buttons - Add and List

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Calibration List

Provides a listing of all the historical calibrations that were used for this sensor. Recalibration for a historical period would apply each calibration over its effective time. Each calibration entry is editable and can be changed.

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Calibration Add

Select the Point.

Multiplier - multiplied by raw value (PT calibration = slope)
Adder - added to result (PT calibration = offset)
Base value - added to result (level sensor = reference datum)
Time - effective time

We always add new calibrations so we maintain an accurate history of the various calibration changes and we can always re-calibrate a historical period.

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Computation/Rating

Every sensor can have associated computations performed after the data are calibrated.

Rain sensors - computations include incremental rain, storm rain total, season total.
Level sensors - computation may include stage-discharge ratings.

The term computation and rating are used interchangeably.

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Computation

Computation - Rain

Incremental rainfall
Storm total rainfall
Season total rainfall

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Rating Assign

Incremental Rainfall

Select point
Select computation
Enter SHEF code
Number - next available rating number for point
Name
Time

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Season Total Rainfall

Select point
Select computation
Enter SHEF code
Number - next available rating number for point
Name
Time - this defines when the season starts!

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Storm Total Rainfall

Select point
Select computation
Interval - time interval for no rain used to reset storm total to zero
Enter SHEF code
Number - next available rating number for point
Name
Time

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Water Level

Select point
Select computation
Enter SHEF code
Number - next available rating number for point
Name
Table - assign the correct rating table
Effective Time - we can re-compute flows for a historic period because each rating knows over what time interval it is valid
Edit button