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Appendix V
AvL Vector Compass
Setup & Operation Guide
Revision R11.9.0
This document describes the configuration, concepts, and operation of the
AvL Vector Compass system.
AvL Technologies
900-159-021

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Summary of Contents for AvL Technologies Vector Compass

  • Page 1 Appendix V AvL Vector Compass Setup & Operation Guide Revision R11.9.0 This document describes the configuration, concepts, and operation of the AvL Vector Compass system. AvL Technologies 900-159-021...
  • Page 2: Table Of Contents

    Vector Compass Revision History Date Revision Revision By Comments 6/28/16 Rev. X11.7.0 Initial Release 11/9/16 Rev R11.8.0 Updates for R11.8.0 Updates for R11.9.0 and new template, updated 4/20/17 Rev R11.9.0 WL/IH introduction Contents Introduction ..............................................2 Setup Guide ..............................................2 2.1 Hardware ..............................................
  • Page 3: Introduction

    AAQ GUI as part of the AvL AAQ Controller. The Vector Compass system uses GPS satellite information to produce an accurate heading without the need for an internal compass or manual compass setting.
  • Page 4: Hardware Connection

    2.3 Hardware Connection 2.3.1 Serial Communication Connection The Serial connection is prepared at the factory for connection of the Vector Compass to the Antenna connection bulkhead. Alternate connections are not an option for the hardware associated with this module. 2.3.2 Ethernet Communication Connection Ethernet connection is not an option for the hardware associated with this module.
  • Page 5: Figure 2 - Core Configuration, Keyword "Vector

    Vector Compass Figure 2 – Core Configuration, keyword “Vector” Figure 3 – Core Configuration, keyword “Heading; Source” AvL Technologies | Proprietary – Content is Subject to Change without Notice...
  • Page 6 0 or 1 at the factory and should not be changed by the user. This flag resets the power supplied to the Vector Compass when set to “1”. This is set Vector Compass Reset Integer 0 or 1 at the factory and should not be changed by the user.
  • Page 7: Target Configuration Items

    4. Operation 4.1 Functional Overview A GPS based Vector Compass system is used as an alternative way to determine heading as opposed to using a magnetic device. As the GPS antenna is moved through space, its receiver periodically records position information. By using a second GPS unit at a measured distance from the first and comparing data between the two, positional errors can be mathematically eliminated.
  • Page 8: Figure 4 - Aaq Gui Main Page, Heading Source

    Unless a secondary source is chosen, the default selection is the same as the primary. See the AAQ Controller Manual section for additional information on available heading sources. It is important to note that when the Vector Compass option is fitted, the standard compass as part of the NAV RIOM is generally omitted.
  • Page 9: Sensor Outputs

    Vector Compass 4.2 Sensor Outputs Path Main Window → View → Sensor Outputs Level 4 Figure 5 – Sensor Outputs Item Description Vector Compass The System altitude as read from the compass data Altitude Vector Compass The error of precision in the horizontal dimension based on the satellites Horizontal Dilution used.
  • Page 10: Module Windows

    The number of complete polling messages as read from the AAQ. Message Count Vector Compass Message from the Vector Compass receiver indicating its “ready state”. Status Vector Compass The error of precision in the vertical dimension based on the satellites used. A Vertical Dilution high value could result in poor resolution.
  • Page 11: Issues And Troubleshooting

    Compass Heading on Remote GUI Vector Compass not reads zero communicating with controller Check that Vector compass is selected as heading source Perform Home command; check that sensor output variable “Vector Compass Message Count” is counting. Check connections at GPS pucks, set “Heading Averaged”...

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