6
Performing an Experiment
This section describes how to perform and experiment and how to read and align the data
obtained from the experiment.
6.1
Experiment preparation
In order to perform an experiment and to collect data synchronized from multiple nodes, the
following steps should be followed:
• Connect the gateway (Section 4.2).
• Check the settings of the gateway (Section 4.8.1).
• Turn on the nodes and verify that data is received from all of them (make sure they are
on the same channel as the gateway); verify packet loss and battery level in the legend
(paragraph 4.1.3).
• Check the settings of the nodes regarding enabled sensors and sampling rates (Section 4.8).
• Calibrate the sensors if necessary (Section 4.9).
• Reset the orientation using the
Reset
button in the
Tracker
(Section 4.10). In this way, all
nodes will start with the correct initial
yaw
angle.
• If logging to flash is required (e.g. when filling in lost samples), check the already existing
flash logs and perform a format for each node if necessary (Section 4.4.3).
• Open the
Logging Configuration
window and check the settings regarding location of file
and other options (Section 4.3)
• If
Export
is enabled, check the export settings (Section 4.6) and file settings, e.g.
CSV Settings
• Start recording from
Logging Configuration
window or from the toolbar.
• Stop recording from
Logging Configuration
window or from the toolbar; this step is not
necessary if a countdown timer was used (Section 4.3).
• If enabled, confirm and wait for lost samples to be filled in (Section 4.5). In case of missing
data (red sections appear in the progress bar), expand the manual settings and press
Start
to restart the process (Section 4.5.2).
• If enabled, wait for file to be exported (Section 4.6).
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