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IMAGENEX 881A/L-GS Set Up And Configuration

Gyro stabilized scanning sonar, serial/ethernet version
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IMAGENEX TECHNOLOGY CORP.
Set Up and Configuration of the
Imagenex Model 881A/L-GS
Gyro Stabilized Scanning Sonar
(Serial / Ethernet Version)
Imagenex Technology Corp.
209-1875 Broadway Street
Port Coquitlam, BC
Canada V3C 4Z1
Telephone: (604) 944-8248
Fax: (604) 944-8249
info@imagenex.com
www.imagenex.com
Number
430-044
Revision
Date
Description
0A
December 03, 2019
For internal review

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Summary of Contents for IMAGENEX 881A/L-GS

  • Page 1 IMAGENEX TECHNOLOGY CORP. Set Up and Configuration of the Imagenex Model 881A/L-GS Gyro Stabilized Scanning Sonar (Serial / Ethernet Version) Imagenex Technology Corp. 209-1875 Broadway Street Port Coquitlam, BC Canada V3C 4Z1 Telephone: (604) 944-8248 Fax: (604) 944-8249 info@imagenex.com www.imagenex.com...

  • Page 2: Table Of Contents

    Table of Contents 1.0 INTRODUCTION ...............................6 2.0 GETTING STARTED ............................7 2.1 Hardware Installation .............................8 2.2 Software Setup ..............................8 2.3 Interface .................................9 3.0 SOFTWARE MENUS ............................. 15 3.1 File ................................15 3.1.1 Connect to Sonar Head ........................15 3.1.2 File > Open File to Playback ......................15 3.1.3 File >...
  • Page 3 3.6.6 Profile > Zero Down ........................... 21 3.6.7 Profile > Profile Min Range… ......................21 3.6.8 Profile > Auto Profile .......................... 21 3.7 GPS ................................22 3.7.1 GPS > Enable ............................ 22 3.7.2 GPS > Track Plotter ........................... 22 3.7.3 GPS >...
  • Page 4 Figures and Tables 2-1 E ............................8 IGURE XTERNAL 2-2 T ............................9 ABLE OOLBAR PTIONS 2-3 F ....................... 10 IGURE OS AND PEED ONTROL 2-4 S ..........................10 IGURE ONAR TTRIBUTES 2-5 D ..............................11 IGURE ISPLAY 2-6 T ............................ 12 ABLE OOLBAR PTIONS...
  • Page 5 Acronyms and Abbreviations Acronym Meaning User Datagram Protocol Remotely Operated Vehicle Volts Direct Current Personal Computer Universal Serial Bus Page 5 of 28 430-044...

  • Page 6: Introduction

    Both units deliver a high level of performance with the 881L-GS ethernet unit able transfer data at a higher rate which leads to improved range resolution. The 881A/L-GS sonar comes with a free Windows™ program that is used to interface with the sonar, control settings, log and play back data.

  • Page 7: Getting Started

    • Deploy to stable, flat location. • Power up the 881A/L-GS. • Wait for gyro calibration to complete. The sonar, upon power up will calibrate the motor, delay for 30 seconds and automatically perform a gyro calibration. No communication to the gyro sub-system is available at this time.

  • Page 8: Hardware Installation

    D: Electronics bottle. Use this area to mount the sonar. 2.2 Software Setup The latest version of the Win881AL_GS.exe program is available from the Imagenex Technology website (https://imagenex.com/interior-page/software-download). The installation of the software on the PC is straightforward. It can be installed in its own directory, and run by double clicking, or you can create a shortcut from the desktop for it.

  • Page 9: Interface

    2.3 Interface Controls: Connect to a physical sonar head Open a File play-back session Start / Stop recording an 81R data file Scan in polar mode which means the sonar will do 360° rotations. Direction (CW / CCW) is toggled by clicking Rev.

  • Page 10: Figure 2-3 File Pos And Speed Control

    Speed: Define the scan speed of the sonar. (Slow – Fastest). Mode: Polar / Sector / Side Scan, as described in Table 2-2 Toolbar Options. Enable ES: Not used for the 881A/L-GS. Range: Not used for the 881A/L-GS. Gain: Not used for the 881A/L-GS.

  • Page 11: Figure 2-5 Display

    Figure 2-5 Display Page 11 of 28 430-044...
  • Page 12 Description Display current acoustic range and frequency of sonar in yellow. Displays grid scale and current gain in orange. Gyro enabled / disabled in green Displays only when Gyro Stabilized Image is enabled. One of: North Up, Heading Up, or Target Steering.

  • Page 13: Figure 2-7 Acquire Target

    Acquire Target The 881A/L-GS has the ability to select a target of interest, and automatically centre on and scan about a target on screen. The procedure is as follows: • Ensure the gyro is enabled and in “Target Steering” mode. The image will perform a full polar scan.

  • Page 14: Figure 2-9 Compass Display

    Figure 2-9 Compass Display See Figure 2-9 Compass Display above. Displays the current heading as a moving display if View > Compass Display is selected. Figure 2-10 ROV Overlay See Figure 2-10 ROV Overlay above. Displays the current heading as a moving display if View > ROV Overlay is selected.

  • Page 15: Software Menus

    Specify a data source as an .81R data file that is received through a UDP port. 3.1.4 File > Record Start (Stop) Toggles the record state on and off. Recording is done as per the settings below. The file format for an 881A/L-GS is .81R. 3.1.5 File >...

  • Page 16: View

    3.2 View 3.2.1 View > Hold Pause the display of sonar data. 3.2.2 View > Reverse Changes the sweep direction. Toggles clockwise / counterclockwise. 3.2.3 View > Clear Screen Clears the screen of historical data. 3.2.4 View > Zoom Factor Changes the factor by which the display is zoomed in or out (50, 75, 100, 125, 150, 175, 200%).

  • Page 17: Color Table

    Allows various colour combinations (background and scan) to be selected. Used to change the sonar data colour palettes for the sonar images. The 881A/L-GS uses a colour table to represent echo data strength (amplitude). For example, the Normal High intensity colour table maps the echo data amplitude to 256 colours ranging from black (low strength level) through blue, green, orange, yellow, white, and red (highest strength level).

  • Page 18: Systems

    3.4 Systems 3.4.1 System > Choose COM Ports Allows for the configuration of communication ports: If an 881A-GS is being used, the communication port parameters are set in the Sonar Head section. The Sonar Head configuration is not relevant with 881L as it is connected via ethernet. A serial heading output can be set here which will output the heading sensors heading on a serial port.

  • Page 19: Options

    (auto mode) to remove the accumulated drift. Automatic Gyro Calibration Imagenex Gyro enabled scanning sonars now incorporate an automatic gyro biasing feature which is selectable in the user program. This mode continuously re-bias's the gyro in real time, accommodating for temperature fluctuations and internal drift.

  • Page 20: Options > Enable Gyro Auto Bias

    3.5.5 Options > Enable Gyro Auto Bias Puts the sonar into auto bias mode where the sonar will continuously re-bias the gyro in real time. Disabling this mode requires periodic manual calibration. See Section Options > Calibrate Gyro. 3.5.6 Options > Calibrate Compass Field calibrates the internal compass.

  • Page 21: Profile

    3.6.7 Profile > Profile Min Range… Set the minimum range here. Useful to eliminate spurious returns that occur too close to the transducer. 3.6.8 Profile > Auto Profile Not used in the 881A/L-GS sonar. Page 21 of 28 430-044...

  • Page 22: Gps

    3.7 GPS 3.7.1 GPS > Enable If a GPS receiver is connected via a comm port, it may be enabled and disabled here. 3.7.2 GPS > Track Plotter Displays a window showing the historical track of the sonar. 3.7.3 GPS > Erase GPS Tracks Clears the historical track of the sonar.

  • Page 23: Video

    3.8 Video It is possible to connect a video source to the sonar via a connected USB video frame grabber. This video is viewed in the interface window in real time using the following commands. 3.8.1 Video > Open Video Window Allows the interfaced video camera to display in the interface window.

  • Page 24: Help

    3.9 Help 3.9.1 Help > Help… Displays a pane with hot keys. (see APPENDIX A) 3.9.2 Help > About… Reports the software version, which should be quoted during any support queries. Page 24 of 28 430-044...

  • Page 25: Appendix Ahot Keys

    APPENDIX A HOT KEYS Page 25 of 28 430-044...

  • Page 26: Appendix Bwindows™ Tcp/Ip Set-Up And Troubleshooting

    APPENDIX B WINDOWS™ TCP/IP SET-UP AND TROUBLESHOOTING The Imagenex Model 881L-GS sonar system consists of an underwater sonar head connected via Ethernet © directly (or indirectly) to a Windows based computer. This document covers the necessary setup procedures to enable your Windows ©...
  • Page 27 This is done as follows (Windows™ 10): • Navigate to the Control Panel and double-click ‘Network and Sharing Centre’ • Click ‘Change adapter settings’ • Right-click on the Ethernet interface you wish to connect with and select ‘Properties’ • Select ‘Internet Protocol Version 4 (TCP/IPv4)’ •...
  • Page 28 • Under “Network Connections”, right-click on the Ethernet card and select properties. Clear unnecessary network protocols: Deselect all services except for Internet Protocol Version 4 (TCP/IPv4) • Remove any firewalls present Select the “Advanced” Tab. Deselect the Firewall option (if present). •...

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