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xioTechnologies / Fusion

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How to use imufusion's python package to calculate the trajectory through nine-axis data? Could you give an example? Thanks a lot. #109

Closed One-one-one-learner closed 1 year ago

xioTechnologies commented 1 year ago

It is typically not possible to calculate a 3D trajectory using only IMU measurements. I suggest you read the "Can I measure position using an IMU?" FAQ on this page.

One-one-one-learner commented 1 year ago

It is typically not possible to calculate a 3D trajectory using only IMU measurements. I suggest you read the "Can I measure position using an IMU?" FAQ on this page.

Thank you for your reply.

After reading the answer, I found that the IMU can give the motion trajectory under certain circumstances, such as gait tracking and oscillatory motion, so why can't the trajectory tracking be realized only under the condition of IMU? Could you give some hints or reasons to explain? Looking forward to your reply.

xioTechnologies commented 1 year ago

Because of the drift associated with double integration. You will find much better explanations and discussions of this if you search online.