Sensor Fusion & Battery duration
Hi,
we are working on two MetaMotionC devices, fw 1.3.7, and we're acquiring Linear Acceleration data through Sensor Fusion in order to track human movements. We have several questions:
1. is it possible to stream both euler angles and linear acceleration? We need to evaluate acceleration direction by north direction
2. in this scenario (euler angles + linear acceleration), assuming we're also reading RSSI data, using data streaming and not logging, what battery duration do you expect? We need to acquire data each 10 seconds
3. during data acquisition it seems to be a lack of precision due to continue recalibration (you can see a step in the graph on the y axis). This behavour avoid us to evaluate, for example, the correct distance traveled by the person. Do you expect this behaviour?
Comments
Our desiderated duration is 6 months at least..
We didn't calibrate anything. We saw a new "Calibration section" in the SDK docs: https://mbientlab.com/androiddocs/latest/sensor_fusion.html
The "Bosch tutorial video (Youtube)" for calibration has a wrong link, can you give me the right link please?
You're not going to get 6 months on one battery running the sensor fusion algorithm. You can try the other sensor fusion modes that sample the sensors at lower frequencies but those do not use the gyro.
Here's the corrected link:
https://www.youtube.com/watch?v=Bw0WuAyGsnY