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NEUBREGATE

Database system : support long-term monitoring

It has an expanded data processing function,
which assist to improve data processing results and accurately capture events during long-term monitoring.

Too Much Data?
Database Management
How to Interpret Raw Data?
 
Visualization
Need a Monitoring System?
Alert Notifications

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Features and challenges of optical fiber measurement

While the latest optical fiber measurement technology is convenient and can run advanced measurements, there are some aspects that require consideration when processing the acquired data.
  • 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
    • Consider on methods 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.
  • Fiber breakage - Repair (re-splice) causes the length after the repaired part to become inconsistent
    • 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.

NEUBREGATE Features

NEUBREGATE processes, stores, retrieves, and displays optical fiber measurement data
  • Reading and processing data from the measuring instrument 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)
    • Correction process for processing
      • Correct Bad Point
      • Position Adjustment for Rayleigh
    • Correlation coefficient output

Calculation Function (data processing)

  • Strain temperature separation calculation
  • Smart Rod Calculation
  • Deflection Calculation
  • Ream 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(Savizky-Golay)
  • Moving average
  • Distance axis inversion calculation
  • Distance Offset Adjustment Calculation
  • Handling distance-missing data
  • Data processing after repairing a broken wire during the measurement route
  • Add-In functions for each user requests
    • 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
  • Pickup and overlay of plot waveforms
  • Simultaneous display of multiple data trends

Continuity 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)

 Product Introduction

 Reference Materials

Tutorial (English)

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