Back to results
US 8,948,903 B2Granted
Machine tool device having a computing unit adapted to distinguish at least two motions
AssigneeRobert Bosch GmbH
InventorsWolfgang Niehsen, Jochen Wingbermuehle, Matthias Heiler
Life of this patent
Estimating the term…
Abstract
A machine tool device having a monitoring unit for monitoring at least one machine tool monitoring range, the monitoring unit having an evaluation unit. The evaluation unit has a computing unit which is provided to distinguish at least two motions in the machine tool monitoring range.
Claims11
A machine tool device, comprising:
- a monitoring unit for monitoring at least one machine tool monitoring range, the monitoring unit having an evaluation unit, the evaluation unit having a computing unit adapted to determine a motion vector field and to distinguish at least two motions in the machine tool monitoring range;
- wherein the computing unit is adapted to:
- determine a comparison variable between motion parameters of the at least two motions, each of which characterizes a different motion;
- and
- detect the presence of a human body part in the machine tool monitoring range based on the motion vector field by ascertaining an extension of a region of uniform velocity and comparing the extension to prestored data corresponding to an extension of the human body part.
2 more elements
A machine tool, comprising:
- a tool;
- and
- a machine tool device, including a monitoring unit for monitoring at least one machine tool monitoring range associated with the tool, the monitoring unit having an evaluation unit, the evaluation unit having a computing unit adapted to determine a motion vector field and to distinguish at least two motions in the machine tool monitoring range;
- wherein the computing unit is adapted to:
- determine a comparison variable between motion parameters of the at least two motions, each of which characterizes a different motion;
- and
- detect the presence of a human body part in the machine tool monitoring range based on the motion vector field by ascertaining an extension of a region of uniform velocity and comparing the extension to prestored data corresponding to an extension of the human body part.
4 more elements
A method for monitoring a machine tool device, comprising:
- monitoring a machine tool monitoring range of a machine tool;
- detecting data in the machine tool monitoring range;
- determining a motion vector field;
- distinguishing at least two motions in the machine tool monitoring range from one another based on the data;
- and
- determining a comparison variable between motion parameters of the at least two motions, each of which characterizes a different motion
- detecting the presence of a human body part in the machine tool monitoring range based on the motion vector field by ascertaining an extension of a region of uniform velocity and comparing the extension to prestored data corresponding to an extension of the human body part.
4 more elements
Dependencies are inferred from the claim text.