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2016-05-31 10:22:24 -0500 commented question Imu acceleration to position exclude gravity effect

I'm using Pixhawk 3D robotics. I get from the device the angular velocity, quaternion and linear acceleration. I'm good with the rotation but not with translation. So.I'm trying to get it from linear acceleration but I can't exclude the gravity. Do you have some suggestions?

2016-05-27 11:46:36 -0500 commented question Imu acceleration to position exclude gravity effect

Im using this device: https://store.3dr.com/products/3dr-pi...

And Im working with ROS, so I get the linear accelerations but with the gravity include and I need to exclude it.

2016-05-27 11:33:06 -0500 received badge  Popular Question (source)
2016-05-27 09:19:23 -0500 commented question Imu acceleration to position exclude gravity effect

Many thanks for your suggestion.

Maybe do you have or know another method to get the position?

2016-05-26 08:47:06 -0500 asked a question Imu acceleration to position exclude gravity effect

Im working with a Pixhawk 3DR. And I need to get the position of the robot. I'm trying to calculate with the linear accelerations and a delta time, but I can't exclude the gravity effect.

Im trying with this:

x_posicion_var = (0.5*alx)*(delta_time*delta_time)
y_posicion_var = (0.5*aly)*(delta_time*delta_time)
z_posicion_var = (0.5*alz)*(delta_time*delta_time)

does some know how to resolve it?

thanks

2016-05-26 08:40:24 -0500 commented answer IMU linear acceleration to position

Hi. I have almost the same problem. And checking your inputs, you are taking a velocity value, where is it coming from? And how do you exclude the gravity effect ???

2016-04-17 17:11:35 -0500 commented question Issues with RViz and Displaying IMU data

Hi, I was trying your code, but I got an error..

IOError: [Errno 2] No such file or directory: 'input.bag'

Do I have to write an script to make a tf?? or Do I have to write also an script to record such bag files?

2016-04-10 18:32:13 -0500 commented question Issues with RViz and Displaying IMU data

Thank you very much. I will try it. Regards

2016-04-05 00:14:42 -0500 commented question Issues with RViz and Displaying IMU data

I have the same situation. Did you solve the problem?