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MONITORING SYSTEM

NEUBREGATE

A Database Systemfor Long-Term Monitoring

NEUBREGATE offers advanced data processing capabilities
that help improve data analysis and accurately detect events during long-term monitoring.

Too Much Data?

Database Management

How to Interpret Raw Data?

Visualization

Need a Monitoring System?

Alert Notifications

01  USE CASES

NEUBREGATE Use Cases

Identify Location and Displacement

Where is displacement occurring, and by how much?

With NEUBREGATE, you can identify the measurement location and determine displacement without complex manual calculations from strain values, so you can access the information you need directly.

Visualize Changes Over Time

How are measurement values changing over time?

NEUBREGATE automatically organizes tens of thousands of accumulated measurements in chronological order and visualizes changes in an intuitive format.

Focus on Selected Sections

What do the measurements show in a specific section of the sensing fiber?

With NEUBREGATE, you can extract only the sections you need from long-distance measurement data and efficiently review changes within the selected section.

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02  BEHIND THE MEASUREMENTS

DFOS Data
Characteristics

Distributed fiber optic sensing enables advanced measurements. To process the resulting data effectively, it is important to understand several key characteristics.

  • A large amount of measurement point data is acquired per trace

    • In the case of 5cm sampling, 120,000 data points are acquired in a single measurement with 6km distance range.

  • Calculation is required to convert measurement data values (frequency) into physical quantity values

    • Conversion to strain/temperature values
    • Selection of a method for separating strain and temperature

  • It is not easy to identify the physical location from the measurement data

    • The optical fiber used for distributed measurement has no positional markers

  • Due to the shrinkage of the optical fiber, the sampling point of the measurement data and its physical location on the fiber will shift.

    • The optical fiber is fixed to the object to be measured, but the light pulse used for measurement scans inside the optical fiber, and the position (distance) is calculated based on the time it takes for the pulse to return, assuming a constant speed of light.
      Therefore, if the optical fiber shrinks due to temperature or strain, a deviation from the original measurement position will occur.

  • Repairing a broken fiber may alter the distance reference beyond the splice point.

    • Shorten the cable and re-splice it, or insert a patch cable in between.
    • Measurements taken at intervals of a certain period use different communication lines.

03  FUNCTIONS

NEUBREGATE Features

NEUBREGATE processes, stores,
retrieves, and displays optical fiber measurement data

Data Import and Processing

  • Reading and processing data from the measuring interrogator NEUBRESCOPE
  • Brillouin data fitting calculation
  • Rayleigh data correlation calculation processing
    • Method of processing
      • Regular (rolling) replacement of reference data
      • Data quality assessment and processing changes based on correlation result coefficients
      • Frequency Resampling
      • Length correction value setting (target time and position can be specified)
    • Data Correction
      • Correct Bad Point
      • Position Adjustment for Rayleigh
    • Correlation coefficient output

Calculation Function (data processing)

  • Strain temperature separation calculation
  • Smart Rod Calculation
  • Deflection Calculation
  • Actual length calculation
  • Temperature compensation from the same route
  • Absolute value calculation (initial value data setting)
  • Data correction using values from another layer (difference)
  • Arithmetic operations on layer data
  • Filtering(Savitzky-Golay)
  • Moving average
  • Distance axis inversion calculation
  • Distance Offset Adjustment Calculation
  • Handling distance-missing data
  • Data processing after repairs to a broken fiber along the measurement route
  • Custom add-ins for user-specific requirements
    • Caisson Add-In
  • Weather data handling
    • AMeDAS

Display Features

  • Select any data and compare the difference in data waveforms
  • Display time trend plots with specified periods and intervals
    • Importing external data (pressure, thermometer, AMeDAS, etc.) and displaying it overlaid in same plots
  • Check data from a bird's-eye view using Waterfall(Contour)/3D
  • Displaying waveforms on a drawing using Plot On Drawing (POD)
  • Dynamic real-time display (automatic display update)
    • Contour (Waterfall plot) also updates automatically
  • Extract and overlay plotted waveforms
  • Simultaneous display of multiple data trends

Integration Features

  • Control NEUBRESCOPE via the network
    • Calendar-based measurement schedule control
    • Sequential/synchronous control of multiple instruments
    • Data is acquired directly over the network, processed, and stored in a database
  • Export data to a single CSV file
    • Append and update
  • Automatic file output in exchange data format
    • Up to 5 layers of data can be stored in one file
    • In addition to CSV format, tab-delimited, fixed length, and <WITSML> are supported.
    • Supports HDF5 format
  • Supports importing other DTS data
    • YOKOGAWA DTSX-3000 (CSV file import/SFTP direct import)
    • Silixa Ultima DTS (XML file import)
    • AP sensing DTS (POSC data file import)

04  PRODUCTS

NEUBREGATE Lineup

05  TUTORIAL CONTENTS

Tutorial Topics

 

  • NBGEdu_001_Firststep
  • NBGEdu_002_StartupProject
  • NBGEdu_003_DataImport
  • NBGEdu_004_Displaying
  • NBGEdu_005_ControllingNBSCOPE
  • NBGEdu_006_ControlCenter
  • NBGEdu_Appendix-A_RayleighCorreration_Eng
  • NBGEdu_Appendix-B_NetworkBasis
  • NBGEdu_Appendix-C_Things to consider in fiber optic distribution measurement
  • NBGEdu_Appendix-D_Understanding_PositionShift
  • NBGEdu_Appendix-E_OnField_QuickStartUP
  • NBGEdu_Appendix-F_SettingsThreshold
  • NBGEdu_Appendix-G_CreateDifferentialData
  • NBGEdu_Appendix-H_SetComparisonPlots
  • NBGEdu_Appendix-I_DynamicMonitorOperation
  • NBGEdu_Appendix-J_CalculateSeparatedStrainUsingDTS