Monitoring

The monitoring routine offers a single-station system for deformation control of bridges, buildings, walls, etc. The software will continuously measure to defined targets and report deviation from previous measurement and total deviation. Monitoring cycles are user configurable for permanent setup. Email alerts can be sent automatically when motion tolerances are exceeded and results can be logged to a COMM or file in real time.

^†Note: This routine is only available with the purchase of the additional Monitoring module.

The routine begins by specifying the source of the targets to monitor relative to the current backsight point:

• Load target list from file: Launches the standard File Selector that permits a previously saved target list to be specified. Once specified, the command continues to the Monitoring dialog box.
• Start new session: Launches the Add Target dialog box where a target point can be added.

Note: The current Occupied Point and current Backsight Point cannot be specified as monitoring targets.

Monitoring

The Monitoring dialog box is where you organize and initiate measurements to your desired foresight target points.

• Settings: (gears) Permits the customization of the Reporting (and optional Email alerts in the event of a monitoring failure) along with Tolerances and any applicable Instrument Settings.
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  • Num. retries on failed target: In the event the instrument is unable to read a target (e.g. temporary obstruction), indicate how many times the instrument should try to reacquire the target before reporting a failure.
  • Reporting: Use this button to configure where and when an informational report of the monitoring session should be produced.
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    • Comm Output: When enabled, the results of the monitoring session can be sent to an external port that can be configured as described under equipment Communication settings.
    • Email Alerts: When enabled, the results of the monitoring session can be sent to one or more Email recipients as described under Export.
    • Email full report at end of cycle: When enabled, a complete report of the measurements to the monitoring target(s) will be transmitted to the specified Email recipient(s) upon the conclusion of the measurement cycle.

      Note: The Subject line of the Email will commonly be Carlson SurvPC Monitoring.

    • Instant email when out of tolerance: When enabled, any measurements to a target that exceed the specified Tolerances will trigger an Email alert with details of the exceeded tolerance(s).

      Note: The Subject line of the Email will commonly be Carlson SurvPC Monitoring ALERT.

      Note: The default Monitoring Alert report template is located within the PredefinedTemplates\Monitoring folder.

  • Tolerances: Use this button to establish when positional differences between computed target positions and initial target positions should trigger an alert.
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    Tolerances are designated into three tabbed categories:

    • Reference: Points (such as fixed control points) that should never move. Tolerances for these types of points should typically be very tight as movement would be a major problem.
    • Static: Points you are monitoring that shouldn't move. Tolerances for these types of points should typically be tight.
    • Kinematic: Points you are monitoring that can move. Tolerances for these types of points could be a bit looser.

    

    

    

    Within each of the three target categories are the following tolerance options:

    • 3D-Dist (XYZ) Warning out of: When the 3-dimensional distance of the measured point exceeds the cited value, a "Failed" status is generated.
    • 2D-Dist (XY) Warning out of: When the horizontal 2-dimensional distance of the measured point exceeds the cited value, a "Failed" status is generated.
    • Delt-Elv. (Z) Warning out of: When the vertical distance of the measured point exceeds the cited value, a "Failed" status is generated.
  • Instrument Settings: Use this button to establish additional parameters (when applicable) for the active robotic total station.
• Add: Launches the Add Target dialog box that permits a new monitoring target to be placed into the target list.
• Edit: Launches a renamed version of the Add Target dialog box that permits an existing monitoring target to be modified.
• Up: Moves the selected target up in the target list.
• Down: Moves the selected target down in the target list.
• Measure: Initiates the Measurement Settings dialog that controls the operation of the monitoring routine.

Add Target

The Add (also Edit) Target dialog box is used to specify or modify a desired target point.

Note: The point(s) can be established through the existing Point List, Map Screen pick or Station/Offset value.

• Static: Perhaps the most common monitoring target, specify this type for targets that are expected to remain stationary and are to remain within the Static Tolerances.
• Reference: Specify this type for additional control points that are expected to remain stationary and are to remain within the Reference Tolerances.
• Target: Indicate the type of prism that is associated with the point being monitored.

  Note: Additional prism settings can be added via the Total Station - Settings tab.

Measurement Settings

Note: In the content to follow, robotic total station sets (Backsight Direct/Reverse - Foresight Direct/Reverse, also known as a BD/BR-FD/FR set) will be followed.

Just prior to initiating the monitoring session, indicate additional parameters to control how much monitoring is to be performed:

• Continuous Measurement: The robotic total station will keep turning sets until interrupted.
• Number of Cycles: Indicate how many sequences of the Number of Sets should be measured until the routine finishes.
  • Number of Sets: For each target point, indicate how many sets should be turned to calculate the measured point.

In situations where Continuous Measurement or two or more Cycles are specified, additional controls permit you to configure a Delay Between Cycles:

• No Delay: As soon as a cycle completes, a new cycle will be started.
• One Cycle every: From the start of the initial cycle, indicate how much time should elapse before a new cycle commences.
• New Cycle Starts after: At the conclusion of a cycle, indicate how much time should elapse before a new cycle commences.

Monitoring Measurements

The instrument will begin the monitoring measurements based on the specified settings and will begin to display the results:

Note: Collected monitoring points will be assigned a default description of the SurvNET Duplicate Point Tag and the point name (number) being monitored.

Note: At the conclusion of the last measurement cycle, the instrument will foresight direct the last target location.