U-Connectlocate Software - u-blox XPLR-AOA-3 User Manual

6

u-connectLocate software

u-connectLocate software can track a certain number of tags and report their angles in
over the UART connection. The software employs an algorithm to detect the direction or angles of a
moving tag. The software runs on the NINA-B411 module, which is connected to the antenna array on
the ANT-B10 board.
As the antenna array on the board detects the Constant Tone Extension (CTE) advertised in a tag
beacon, the algorithm calculates the angles in two dimensions from the anchor to the tag. The
calculated range of the angles is -90 to 90 degrees.
For the purpose of simplifying the graphical representation of tag angles in a 3D diagram, the
complementary angles (angle1' and angle2') on which the reported angles (angle1 and angle2) are
calculated are shown in
gradient from the origin point. The white dots represent the antenna board, and the x-axis represents
the normal orientation of the board.
Figure 27: 3D space diagram – showing complementary angles on which the reported angles are based
u-connectLocate reports two angles, "angle1" and "angle2", where:
•
angle1=90°-angle1'
• angle2=90°-angle2'
Note that "angle1" is positive from the positive x-axis to negative y-axis but is negative from the
positive x-axis towards the positive y-axis. Conversely, "angle2" is positive from the positive x-axis
towards the positive z-axis but is negative in going from the positive x-axis toward negative z-axis.
When the tag is moving along the x-axis, the two reported angles should both be zero.
⚠
Upgrading the software resets all settings to factory default.
UBX-22006906 - R07
C1-Public
Figure 27. The angles shown are between the y-axis, z-axis and the tag
u-connectLocate software
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