Canbus#
The canbus module extracts fields from CAN messages (i.e. vehicle data). These fields are automatically extracted with the invocation of the canbus module.
mod |
Field |
Operators |
Example |
|---|---|---|---|
canbus |
ID |
== != < > <= >= |
canbus ID==0x341 |
canbus |
EID |
== != < > <= >= |
canbus EID==0x123456 |
canbus |
RTR |
== != |
canbus RTR==true |
canbus |
Data |
~ !~ |
canbus Data |
Example Search#
The following search will count by canbus packet IDs and display a table with the most frequent IDs.
tag=vehicles canbus | count by ID | sort by count desc | table ID count
The following search extracts messages specifying throttle data and plots the mean position of the throttle. Note that each make/model may use different message IDs and data formats for throttle.
tag=vehicles canbus ID==0x123 Data | slice uint16be(Data[2:4]) as throttle | mean throttle | chart mean