By default the Remora will use the GPS to determine if the device has moved more than a theshold, and only start a Trip based on that.
You can set the Remora to use the accelerometer to start and end trips - this is called "Jostle Based Tracking".
In this mode the Remora uses the presence of movement, vibration, knocking etc to decide that there is activity and to start a trip based on this.
It will end the trip when the activity has stopped for a period.
This can be useful to track usage of assets where they don't move very far. For example, a roller going up and down a section of a road.
Another example is where a farmer stuck a Remora on a centre pivot to know when the pivot was running or not.