How doe sthe automatic go to battery task work?

[RDaneelOlivav]

Hi,

When the battery level gets lower than a certain value, the task to go back to the charging station is issued. But it does coincide with the value of recharge_threshold. And if it gets lower tan the recharge_threshold. The robot is considered useless or at least that can't get anywhere.

Where and how is this recommended percentage of the battery calculated? Is it 10% of the recharge_threshold?

[Yadunund]

The logic is baked into the TaskManger as seen here. When the robot is idle, a timer periodically computes the estimated battery drain if the robot were to head back to the charger now. If the battery level after the estimated drain is within a safety factor applied to the recharge_threshold, the TaskManager will automatically begin a task to take the robot back to its charging station.

The recharge_threshold is used in a similar manner during task allocation. When deciding the order of tasks performed, the TaskPlanner will estimate the battery level of the robot after performing a task A. If the estimate is below the recharge_threshold, it will then check if the robot can perform task A if it performed a recharge task before this. If this is the case then it will automatically include a recharge task before task A. If it still cannot perform task A even after recharging, it will discard the possibility of doing task A in that sequence.

[RDaneelOlivav]

Thanks a lot for the explanation ;)

[zhangyuran-gg]

Hi,I discovered a phenomenon in the simulation scenario: when I send tasks of type dispatch_task_request,robot always return to the charging point when completing tasks;when I send tasks of type robot_task_request,robot do nothing when completing tasks.(finishing_request:park) Why is it like this?