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Vector Compass

AvL Technologies

| Proprietary – Content is Subject to Change without Notice

10

5.

Issues and Troubleshooting

Issue

Description

Corrective Action

Heading on Remote GUI
reads zero

Vector Compass not

communicating with controller

Check Connections to device

Check the configuration items for
communication to the Vector
Compass

Check that Vector compass is selected
as heading source

Perform Home command; check that
sensor output variable “Vector
Compass Message Count” is counting.

Inconsistent/Incorrect
Heading

Heading is not

consistent/incorrect after
performing compass read

Check connections at GPS pucks, set
“Heading Averaged” to “No” in Core
Configuration.

Check for correct “Vector Compass
Heading Offset” in Core Configuration.

Check for overhead obstructions of
Vector Compass GPS device, check for
correct/ accurate “Time Source”.

Check that GPS Pucks and their
mounting bracket are not damaged or
loose.

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Содержание Vector Compass

Страница 1: ...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 Appendix V ...

Страница 2: ...oduction Contents 1 Introduction 2 2 Setup Guide 2 2 1 Hardware 2 2 2 Software 2 2 3 Hardware Connection 3 2 3 1 Serial Communication Connection 3 2 3 2 Ethernet Communication Connection 3 3 Configuration 3 3 1 Core Configuration Items 3 3 2 Target Configuration Items 6 3 3 Signal Configuration Items 6 3 4 Feed Configuration Items 6 4 Operation 6 4 1 Functional Overview 6 4 2 Sensor Outputs 8 4 3 ...

Страница 3: ...n of the associated configuration items that are accessible through the 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 This negates any heading inconsistencies that would be introduced by magnetic interference in traditional compass components 2 Setu...

Страница 4: ... 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 3 Configuration 3 1 Core Configuration Items Path Main Window View Configuration Core Level 4 The AVL Vector Compass uses configuration items to allow the user to tailor the module s operation and interaction with ...

Страница 5: ...Vector Compass AvL Technologies Proprietary Content is Subject to Change without Notice 4 Figure 2 Core Configuration keyword Vector Figure 3 Core Configuration keyword Heading Source ...

Страница 6: ...e offset in degrees of the vector compass device This is set at the factory and should not be changed by the user Vector Compass Separation 4 Float 0 0001 to 10 0 Separation parameter used to initialize the vector compass This is set at the factory and should not be changed by the user Vector Compass Scan Width 1 Float 0 0 to 400 0 Scan width to use during an Acquisition with the Vector Compass as...

Страница 7: ...s 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 The heading information gleaned by this process avoids most of the interference and magnetic errors seen in traditional compass systems The AvL Vector Compass is used to compute a heading as well as DGPS Differential Global Po...

Страница 8: ...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 Once the Vector Compass is selected the system is ready to be used The vector compass information will be read by the controller during the antenna Home process and produce a Heading...

Страница 9: ...iption Vector Compass Altitude The System altitude as read from the compass data Vector Compass Horizontal Dilution The error of precision in the horizontal dimension based on the satellites used A high value could result in poor resolution Vector Compass Latitude The System Latitude as read from the compass data Vector Compass Longitude The System Longitude as read from the compass data ...

Страница 10: ...Vertical Dilution The error of precision in the vertical dimension based on the satellites used A high value could result in poor resolution Vector Compass Heading Indication of corrected compass heading including any applied offsets Vector Compass Raw Heading Indication of compass heading from the raw NEMA string value 4 3 Module Windows 4 3 1 Device Window A Device Window is not needed for monit...

Страница 11: ... compass is selected as heading source Perform Home command check that sensor output variable Vector Compass Message Count is counting Inconsistent Incorrect Heading Heading is not consistent incorrect after performing compass read Check connections at GPS pucks set Heading Averaged to No in Core Configuration Check for correct Vector Compass Heading Offset in Core Configuration Check for overhead...

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