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Timestamp from CAN Network

asked 2021-03-11 04:09:41 -0500

mros
23 ●13 ●20 ●23

Hi all, I am using ROS Noetic with 4 sensors and they send data via CAN network.I want to get the timestamp of the data.

So I did it with tow manners.

The first one, I creat the time stamp with the ros::Time::now().

The second method, I get the Timestamp from the header of the CAN Data Frame. But in both methods I find the same time.

So my question, the timestamp in the header of the CAN Data Frame is created in my host platform? not in the CAN network? Thank you.

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answered 2021-03-23 21:59:27 -0500

danambrosio
106 ●1 ●8 ●11

The socketcan_bridge package contains a node (socketcan_bridge_node) for reading CAN messages from a device and publishing them to a ROS message and vice-versa. This node stamps the CAN ROS message when it is processed on the node side, see here.

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Asked: 2021-03-11 04:09:41 -0500

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Last updated: Mar 23 '21

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Timestamp from CAN Network