Tree processing system

A tree processing system, comprising:

• a tree processing head, comprising:
• a header frame;
• a motor coupled to the header frame;
• a saw coupled to the motor, the saw configured for cutting a tree when the saw is driven by the motor, the saw engaging with the tree from a first position and to a second position, the first position and the second position defining a cutting zone therebetween;
• an arm pivotally coupled to the header frame and configured to secure the tree;
• a sensor configured to detect a saw operation speed;
• a controller coupled to the sensor and configured to determine whether the second position is reached based upon an increase of the saw operation speed detected by the sensor, and when the second position is reached and determined by the controller, the controller transmits a resting signal to the tree processing head to perform a resting operation;
• and
• a memory coupled to or included by the controller and storing data of a threshold for the controller to determine whether the first position or the second position is reached.