GSSI PaveScan RDM 2.0 Manual
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GSSI PaveScan RDM 2.0 Manual

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MN36-716 Rev A

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  • Page 1 MN36-716 Rev A...
  • Page 2 Geophysical Survey Systems, Inc. PaveScan® RDM Manual Copyright© 2020 Geophysical Survey Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form Published by Geophysical Survey Systems, Inc. 40 Simon Street Nashua, New Hampshire 03060 USA Printed in the United States SIR, RADAN, UtilityScan and PaveScan RDM are registered trademarks of Geophysical Survey Systems, Inc.
  • Page 3 OF ITS EQUIPMENT, WHETHER OR NOT DEFECTIVE. Before returning any equipment to GSSI, a Return Material Authorization (RMA) number must be obtained. Please call the GSSI Customer Service Manager who will assign an RMA number. Be sure to have the serial number of the unit available.
  • Page 4 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual MN36-716 Rev A...

  • Page 5: Table Of Contents

    Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Table of Contents Chapter 1: Introduction ......................1 1.1: Unpacking Your System ..................1 Chapter 2: Getting Started and Data Collection ............3 2.1: Start-up ........................3 2.2: System Settings ....................5 2.3: Data Collection Setup ..................12 2.4: Calibration ......................
  • Page 6 Geophysical Survey Systems, Inc. PaveScan® 2.0 RDM Manual...

  • Page 7: Chapter 1: Introduction

    Monday-Friday, 8:30 am - 5 pm EST, at 1-800-524-3011, or at (603) 893-1109 (International). 1.1: Unpacking Your System Thank you for purchasing a GSSI PaveScan RDM (hereafter referred to as RDM). A packing list is included with the shipment that identifies all the items included in the order. Please check the shipment against the packing list upon receipt of the shipment.
  • Page 8 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual MN36-716 Rev A...

  • Page 9: Chapter 2: Getting Started And Data Collection

    Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Chapter 2: Getting Started and Data Collection In Chapter 2, instructions for starting the RDM Software and setting up for data collection. The calibration procedure for sensor(s) is also be explained in detail. 2.1: Start-up Press the button on the top panel of the concentrator box.
  • Page 10 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Application Shortcut (double-click to start) The application can also be started via a desktop shortcut that appears on the desktop after the application is shutdown. MN36-716 Rev A...

  • Page 11: System Settings

    Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual 2.2: System Settings There are several user-adjustable settings that are accessible from the Main Menu. Pressing System Settings in the Main Menu displays the System Settings screen. System Settings Screen Survey wheel calibration is accessible by pressing this button (see page 6). Shows the current version of the PaveScan RDM application.
  • Page 12 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Survey Wheel Calibration Survey Wheel Calibration Screen To perform a survey wheel calibration, enter in the calibration distance. Recommended distance is 100ft/30m or more because the longer the calibration distance the more accurate the calibration. Next, line-up the cart at the starting point, and press Start.
  • Page 13 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Project Defaults Project defaults are all the settings that can be preset and are inherited in newly created projects. These settings include units, GPS Settings, and preferences. Pressing the Project Defaults button opens the Project Properties screen containing these options.
  • Page 14 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual The GPS Settings screen is shown below. The current GPS status is indicated on the top right. NMEA GGA sentences are updated at the GPS update rate when the GPS is properly connected. GPS Settings Screen Baud Rate: The Baud Rate of the GPS.
  • Page 15 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual There are numerous export options that provide extensive customization to exported files and project statistics. These are described below. Export Options Screen Measurement Type: The measurement value to export. Dielectric is the default. This value is always exported.
  • Page 16 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Output Distance Segment Interval: When Provide Segment Statistics is checked, this is the segment interval over which the statistics are calculated. Output Descriptive Header Lines: Check this selection box so show all the available information on the file when the file is exported.
  • Page 17 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Opens a screen enabling editing of data file name and other information. Collect Options The user may modify the number of measurements per unit distance. The options are “Walk”, “Fast Walk”, “Vehicle”. The measurement densities corresponding to these options are 10 scans/ft (40/m), 5 scans/ft (20 scans/m), and 2 scans/ft (8 scans/m).

  • Page 18: Data Collection Setup

    Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual 2.3: Data Collection Setup Clicking on the Collect button from the Main Menu screen displays the Sensor Detection screen. Sensor Detection Screen The detected sensors appear in this table and the Collect Preview button is enabled. The user can press Collect preview to preview collection using the last calibration.
  • Page 19 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual If a connected sensor does not appear, press Detect Again to retry. Once all sensors are detected press the Next button. The following screen appears. The user selects an existing project or a new project. Only existing projects containing the detected sensors are recalled.
  • Page 20 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Project Info Screen The options shown allows filling in details related to the project. Adjustable options here are: Project Group: Specify the group the file belongs to. Suggestions for Group Names range from highway or road names to years and months.
  • Page 21 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Enabled after a project is saved, this option allows the modification of the project settings. These are the same settings that are shown when the Project Defaults button is pressed in the System Settings screen. These settings include such things as GPS settings and export options.
  • Page 22 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual After pressing the File Information screen opens. There are several user entries tied to each file. File Information Screen Collect Mode: Select the collection mode. • Distance Mode – collects measurements at specified distance intervals as the sensors are moved. The distance intervals are determined by the collect option selected in System Settings (see section 2.3).
  • Page 23 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Decreasing Distance: When this box is checked, the distance values decrease as the data are being collected. This occurs when collecting data down station. Lane: The lane the data are obtained in. Lateral Offset from Reference Line to Cart Center(ft/m): This field is the distance of the center of the cart from the Lateral Offset Reference entered in the Project information page.
  • Page 24 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual View Layout Screen If necessary or required, the user is directed to perform air and metal plate calibrations. Directs the user to the data collection screen to start a file. This button turns green once the sensors are warmed up sufficiently.

  • Page 25: Calibration

    Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual The top status bar in the File Information screen contains icons that indicate the status of the sensors, GPS, and battery on the Toughpad computer. There is one icon per sensor indicting communication status. When the adjacent square is green, the sensors are connected and active.
  • Page 26 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual The image below indicates that the calibration procedure is ready to begin with the airwave measurement. Press the Air button. When pressed, it turns orange while the calibration measurement is being performed. The air calibration takes 5-10 seconds per sensor. •...
  • Page 27 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual The following is displayed if calibration is required. The following is displayed if no calibration is required. The following is displayed before the air calibration is performed and metal plate calibration is not required.
  • Page 28 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual In the screen below, specific options turn green when the option is available. The Air button for the air calibration is first. Once the air calibration is complete, the other buttons turn green. Perform the metal plate calibration 1 at a time by placing the metal plate underneath the appropriate sensor and pressing the correlating button MN36-716 Rev A...

  • Page 29: Data Collection

    Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual 2.5: Data Collection Pressing the green Collect Data button after calibration is completed redirects the user to the Collect screen. New Collect image. The current speed data can be collected in walk mode is about 5ft per second (1.5m/s). If this rate is exceeded by a small fraction, the missing data points is filled in with duplicates from neighboring values.
  • Page 30 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual When backing up, the current distance and dielectrics associated with the sensor positions are indicated at the top of the screen and the back-up location in the data is indicated by a large black bar. MN36-716 Rev A...
  • Page 31 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Clicking on the different buttons on the top of the screen shows different combinations of screens. Shows a heatmap of the displayed values (dielectrics or calibrated physical property value) on top and a linechart of the values on the bottom.
  • Page 32 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual By default, the Heatmap + Linechart combination is shown. The heatmap+histogram combination is shown below. MN36-716 Rev A...
  • Page 33 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual The linechart+histogram combination is shown below. Grabbing the handle on the thin bar allows shrinking or enlarging an area. The area being viewed can then be shifted by placing the pointer (or touching) and dragging the shaded area left or right. Once the sensors are moved, the area changes back to the default data collection area.
  • Page 34 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual MN36-716 Rev A...

  • Page 35: Chapter 3: Data Playback And Export

    Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Chapter 3: Data Playback and Export 3.1: Playback and Review Collected Files Playback and review previously-collected data. To do this: The most recent file in the current project can be played back from the File Information screen using Playback Last.
  • Page 36 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual The single file playback option screen, which accessed by pressing is shown below. Select Playback Screen Select the desired Project and File from the dropdown lists, then press the Playback File button. Additional options in the Playback screen include: Allows user to edit file information such as starting distance, ending distance, and filename.
  • Page 37 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual A played-back file is shown below. Display start-up screen (Main Menu) which allows access to data collection, playback data and system settings. Opens a screen which displays statistics related to the currently open file. MN36-716 Rev A...
  • Page 38 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Locates High Dielectric, Mid Dielectric, and Low Dielectric areas in the current file that are suitable for obtaining cores used to generate a dielectric or compaction curve. The columns shown contain the following information: Relative Dielectric: Average dielectric at the location using a 6”...
  • Page 39 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Display Options Screen Measurement Type: Selecting this option to display the desired measurement type. Different measurement units include: dielectric, percent voids, percent compaction, and density. In the screen above, dielectric is currently selected. Note: Calibration numbers must be entered to be able to display measurement values other than dielectric.

  • Page 40: Setting Up The Void Percentage Relationship

    Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual 3.2: Setting Up the Void Percentage Relationship Once a project is created, the Mix Calibration button appears when the project settings screen is accessed. Pressing the Mix Calibration button opens up a screen that shows the two calibration values “A” and “B”...
  • Page 41 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Press this button to automatically generate the calibration equation relating the desired physical property to dielectrics. A screen is displayed to enter in the core- measured values and corresponding dielectric values. In the screen that appears enter in the dielectrics and corresponding core-measured physical property (i.e.

  • Page 42: Exporting Collected Files

    Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual dielectric values when the option is selected in the Display Options screen. Exported data can also contain the physical property value once core calibration is completed. 3.3: Exporting Collected Files When files are exported, a folder with the same name as the project is created in the PaveScanRDM2 Exports folder.
  • Page 43 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual The default columns order of the exported file depends on if stationing is used for position and how many sensors are used during data collection. See Appendix D for details on how to customize the exported columns.
  • Page 44 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Height: Height of the bottom of the sensor above the asphalt surface. Normalized Amplitude: Used to assess the change in signal amplitude over time. This is used for data quality assessment. Sensor Temp: Temperature of electronics inside sensor. This is used for data quality assessment. Time Stamp: Time Stamp, in seconds, associated with measurement MPCal Time Stamp: Time Stamp of Metal Plate calibration measurement used to calculate the dielectric.
  • Page 45 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Playback Range exported files are exported to the project folder and are also exported in a segment statistics file when the Segment Statistics option in the Export Options screen is checked. If GPS position information is available, a Google Earth KML file is automatically created when files and selected ranges are exported.
  • Page 46 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual MN36-716 Rev A...

  • Page 47: Chapter 4: System Shutdown And Updates

    Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Chapter 4: System Shutdown and Updates In Chapter 4, steps for reviewing shutting down the system after data collection is listed. Steps for updating the PaveScan RDM with the latest software package are also listed. 4.1: System Shutdown The application is shutdown from the Exit button that is accessed by in the Main Menu.

  • Page 48: Software Updates

    Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual 4.2: Software Updates The RDM application is updated from time to time to add features and fix issues. The new software can be downloadable from the Resources section at https://www.geophysical.com in the form of a .ZIP file. Open Windows Explorer, locate the Zipped folder, click on it and a setup file (has a .EXE extension) is displayed on the right pane of the Windows Explorer screen.
  • Page 49 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Troubleshooting Is it OK to connect and disconnect the sensors when the power is on? Yes and No: no physical damage is done. However, if sensors are disconnected or connected when the application is running on the Touchpads, a restart the entire system should be done (i.e.
  • Page 50 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual MN36-716 Rev A...

  • Page 51: Appendix A - Calculation Of % Voids, % Compaction, Or Density From Dielectric

    Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Appendix A – Calculation of % Voids, % Compaction, or Density from Dielectric There are two equation types that currently can be used in the PaveScan RDM to calculate another physical property, such as % Voids, % Density, or Compaction from Dielectric. The exponential equation takes the form: P = Ae The linear equation uses the form: P = A +Bd where:...
  • Page 52 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual MN36-716 Rev A...

  • Page 53: Appendix B - Choosing The Correct Lateral Offset

    Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Appendix B – Choosing the Correct Lateral Offset The PaveScan RDM system is designed to view all data looking up-station and increasing distance. Paving direction and collection direction are irrelevant. This must be kept in mind when configuring the system regarding referring to the direction of the Lateral Offset side.
  • Page 54 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual In the figures above, the Reference line is the center line (dotted white line) between the travel and passing lanes, denoted by “0”. In the left figure the joint between the breakdown lane and the travel lane (yellow line) has a lateral offset of 12L for the southbound figure and 12R for the northbound figure.

  • Page 55: Appendix C - Valid Data Range

    Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Appendix C – Valid Data Range Valid Data Range This option is found in the Project Properties as a new checkbox “Apply Valid Data Range.” When this option is checked, a pre-selected value range is used. The value range is specified in the screen that appears when pressing the button.
  • Page 56 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual When the Apply Valid Data Range button is checked, all values outside the specified range are replaced by zeros in the display. The two images below show percent compaction data from a file before (top), and after (bottom) applying a Valid Range filter from 85 –...
  • Page 57 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual The statistics are only applied to the valid data, as shown below: The valid data range is written to the header of the exported file. MN36-716 Rev A...
  • Page 58 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual The values in the exported file outside the data value range are replaced by zeros. The values outside the valid data range are excluded from the segment statistics file. MN36-716 Rev A...

  • Page 59: Appendix D - Export Of Linear And Area Defects

    Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Appendix D – Export of Linear and Area Defects Linear and area defect export is found in the Export Settings screen shown below. Click the accompanying checkbox to enable defect export. When the “Export Defects” option checked, all defects are exported to CSV and KML files. The criteria defining the defects are accessible by pressing the Export Defect Settings button and are shown below.
  • Page 60 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual When the Export Defects button is checked, six additional files are created when the playback file or playback range is exported. Separate files are generated for defect lengths and defect areas. MN36-716 Rev A...
  • Page 61 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Segment Defects by Profiles Format The Segment Defects by Profiles file contains a list of the percent defects for each profile in the selected playback file or playback range on a segment-by-segment basis. The segment length used for the export is the segment interval specified in the Export Settings.
  • Page 62 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Segment Defect Summary Format The segment defect summary contains a listing of the percent defects as well as the number of 2-dimensional defects and if any of the 2-dimensional defects straddle adjacent segments. The table provides statistical information on segment-by-segment intervals.
  • Page 63 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Linear Defect File Format The linear defect CSV file consists of a header line indicating the defect detection criteria followed by a table. The image below is resized to show how the header and table are positioned. The header line of the file indicates the minium defect length.
  • Page 64 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual MN36-716 Rev A...
  • Page 65 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual Area Defect File Format The area defect file is similar to the linear defect file format in that there is a header line followed by a table. The header line displays the minimum defect size threshold. The image below is resized to show the overall format of the file.
  • Page 66 Geophysical Survey Systems, Inc. PaveScan® RDM 2.0 Manual MN36-716 Rev A...
  • Page 68 Geophysical Survey Systems, Inc. 40 Simon Street www.geophysical.com • sales@geophysical.com Nashua, NH 03060-3075 USA...

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