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Thermal Tests
To determine whether a companion pc is capable for use in a closed capsule inside the drone, the temperature, power usage + ???( e.g. run algorithms) needs to be measured which is needed in a similar setup.
Methodology
- put the unit into a box
- connect camera
- trigger a camera shot every second
- measure temperature by using onboard sensor
- measure average power usage by using external power meter
Results
Pi4B
Powerusage: 2.9W
Take Photo: raspistill -t 1800000 -tl 1000 -o image%04d.jpg
Temperature: /opt/vc/bin/vcgencmd measure_temp
Pi3B
Powerusage: 2.3W
Take Photo: raspistill -t 1800000 -tl 1000 -o image%04d.jpg
Temperature:
/opt/vc/bin/vcgencmd measure_temp
