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Warning related to Tf tree

asked 2021-12-18 04:54:46 -0500

dandolain gravatar image

updated 2021-12-18 07:44:40 -0500

Mike Scheutzow gravatar image

I am working on ros project using a Raspberry pi on robot and it's the master and send the motors and sensor values to the laptop which it's the slave. On board sensors are:IMU 6050 and motor encoders. I fuse the values of these two sensors by a pakage called robot localization. I do gampping and it's going well but I think there's  a mistake with tf tree in the ekf node(refers to the (package that's make fusion) And it's always gives a waring like that Transform [sender=unknown_publisher] For frame [/camera_depth_frame]: No transform to fixed frame [map]. TF error: [Lookup would require extrapolation into the past. Requested time 1455210771.635356370 but the earliest data is at time 1637403785.973484575, when looking up transform from frame [camera_depth_frame] to frame [map]]

Any help will be appreciated

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answered 2021-12-18 07:44:20 -0500

Mike Scheutzow gravatar image

You are required to have an accurate linux time-of-day clock on both machines. This is typically done using systemd-timesyncd or ntpd.

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Can u give me any tutorial? I tried to make but i failed

dandolain gravatar image dandolain  ( 2021-12-22 06:57:14 -0500 )edit

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Asked: 2021-12-18 04:54:46 -0500

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Last updated: Dec 18 '21