Sawing device with hand position detection

A sawing device comprising:

• a sawing machine including a workbench, a saw blade housing pivotally connected to the workbench, a motor mounted to the saw blade housing, a saw blade connected to the motor to be driven by the motor to rotate and partially received in the saw blade housing to be driven by the saw blade housing to move closer to or farther away from the workbench, and a protective cover pivotally connected to the saw blade housing and covering a part of the saw blade;
• a safety module including a positioning marker and a visual element disposed on the same side of the saw blade as the positioning marker, the visual element capturing the positioning marker to obtain a relative position between the positioning marker and a center of the saw blade to define a saw blade warning area around the saw blade based on the relative position, the visual element detecting a position of a hand to define a hand warning area around the hand when the hand approaches the sawing machine;
• and
• a controller electrically connected to the motor and the visual element;
• wherein when the visual element determines that the saw blade warning area and the hand warning area partially overlap, the visual element sends a braking signal to the controller, causing the controller to stop the motor.