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As described above, the XKFCore makes assumptions on the range of acceleration and
magnetic field sensed to obtain orientation. Since those quantities can widely differ among
different user applications, multiple filter profiles are introduced to improve the orientation
estimation accuracy. As a result, the XKFCore is optimised to suit different types of
movements and applications. Find below additional information on the filter profiles
available to choose which is best suited for your application.
Table 4: Filter profiles
Name
Description
General
This filter profile is the default setting. It assumes moderate dynamics and a
homogeneous magnetic field. External magnetic distortion is considered
relatively short.
Dynamic
This filter profile assumes fast and jerky motions that
last for a short time
.
The dynamic filter uses the magnetometer for stabilization of the heading
and assumes very short magnetic distortions. Typical applications are when
sensors are applied on persons for sports such as sprinting.
3.3
Xsens DOT sensor state transition
Figure 8: Xsens DOT state transition diagram
3.3.1
Power ON/OFF
You can power on the sensor either with charger or a powered USB cable to plug in the
micro-USB port in the bottom. Sensor will go to advertisement mode after powered on.
Sensor will power off under 3 conditions:
1.
Power button is pressed over 3 seconds
2.
Receive power off command
3.
Sensor will automatically shut down when battery level is lower than 2% to
prevent battery drain.
