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Vector Compass

 

 
 

 

AvL Technologies

 | Proprietary – Content is Subject to Change without Notice                 

 

 

 

 
 

Long Name 

Level 

Type 

Value Range 

Documentation 

Vector Compass Enable 

Integer 

0 or 1 

This flag indicates that the compass 

should be used and powered. This is set 

at the factory and should not be changed 

by the user. 

Vector Compass Reset 

Integer 

0 or 1 

This flag resets the power supplied to the 

Vector Compass when set to “1”.  This is set 

at the factory and should not be changed by 

the user. 

Vector Compass Com Port 

String 

This is the Com Port used by the Vector 

Compass to communicate with the 

controller.  This is set at the factory and 

should not be changed by the user. 

Vector Compass Com Port 

Settings 

String 

The communications parameters for the 

comm port in the form of BuadRate DataBits 

StopBits Parity (ie 9600 8 1 0) where parity 

values are 0 for none and 1 for even.  This is 

set at the factory and should not be changed 

by the user. 

Vector Compass Heading 

Offset 

Float 

-180.0 to 180.0 

The 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 

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 

Float 

0.0 to 400.0 

Scan width to use during an Acquisition with 

the Vector Compass as the Heading Source. 

GPS Source 

Choice 

Manual GPS, NAV 

RIOM GPS, Vector 

Compass GPS 

The device to use as the source of the GPS 

location.  Needs to be set to “Vector 

Compass” 

Heading Averaged 

Choice 

Yes, No 

Flag indicating the heading should be 

averaged during the dwell time. 

Primary Heading Source 

Choice 

No Compass, GPS, 

Compass, Manual, 

SatTant, Vector 

Compass, AvL GPS 

The device to use as the primary source of 

the heading. Needs to be set to “Vector 

Compass” 

Secondary Heading Source 

1  

Choice 

No Compass, GPS, 

Compass, Manual, 

SatTant, Vector 

Compass, AvL GPS 

The device to use as the heading source if 

the primary source fails 

Time Source 

Choice 

None, NTP, Vector 

CompassGPS, 

XML,  NAV RIOM 

GPS, Manual Time 

Time source used by the controller for time 

synchronization Needs to be set to “Vector 

Compass” 

 
 
 
 

Summary of Contents for Vector Compass

Page 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 ...

Page 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 ...

Page 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...

Page 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 ...

Page 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 ...

Page 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...

Page 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...

Page 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...

Page 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 ...

Page 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...

Page 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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