Record and save robot data as csv

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Hi guys,

For experiments it is useful to record and save the joint and sensor data, like x,y,z orientation and coordinates of the base_link.

Is there a common best practice to do so?
Else how do I access this data in a python script to create a csv file?

Best,
Noor

2

Hi @roboor ,

In Stretch we have a dictionary called status, from the Stretch Body, if you are using the robot class you just have to get this status with the information that you are trying to get, take a look at this example, in a terminal run ipython3 and try the following:

In [1]: import stretch_body.robot

r=stretch_body.robot.Robot()

r.startup()

In [2]: r.pimu.status['imu']

In [3]: r.base.status

In [4]: r.base.status['pos']

In [5]: r.arm.status

This are only some examples that you can retrieve data from, when you run the status without a flag it’s going to print you all the data from that specific class, like the input 3 and 4, with this you can search for the data that you want to save from one specific joint and sensor. The base status is the one that has x, y and theta (z) that you may be looking for. You can also take a look at this tutorial from our docs about Accessing the Status Dictionaries.

If you want to go further and replay your motion data check out this thread for the base motion, here is some information that may help you understand better.

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