Method and means for handling an object
AssigneeABB Schweiz AG
InventorsMartin Schautt, Richard Roberts
Life of this patent
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AssigneeABB Schweiz AG
InventorsMartin Schautt, Richard Roberts
Estimating the term…
A method for handling an object comprises the steps: a) connecting the object (1) with a manipulator (5) and with an input tool (7) by means of which a direction ({right arrow over (d)}′) within an internal coordinate system (K′) relating to the input tool (7) can be entered, d) initiating a test movement of the manipulator (5) on the basis of a direction ({right arrow over (r)}) known in the external coordinate system (K); e) determining the direction ({right arrow over (r)}′) of a movement of the input tool (7) in the internal coordinate system (K′) resulting from the test movement of the manipulator (5); f) determining a coordinate transformation (T) which transforms the direction of the resulting movement ({right arrow over (r)}′) in the internal coordinate system into the known direction ({right arrow over (r)}) in the external coordinate system; g) detecting an internal direction ({right arrow over (d)}′) within the internal coordinate system (K′) entered by a user using the input tool (7); h) applying the coordinate transformation (T) to the detected internal direction ({right arrow over (d)}′) in order to obtain an external direction ({right arrow over (d)}); and i) controlling a movement of the manipulator (5) on the basis of the external direction ({right arrow over (d)}).
Method for handling an object comprising the steps:
(canceled)
The object handling system according to claim 18, characterised in that the input tool (7) comprises a base (8) for attachment to the object (1) and a head (9) designed to be manipulated by the user and that the head (9) and the base (8) are physically connected via an input sensor (12) which is set up to detect at least one vectorial control parameter ({right arrow over (d)}′) applied to the head (9) by the user in relation to an internal coordinate system of the input tool.
The object handling system according to claim 18, further including an orientation sensor (16), wherein the orientation sensor (16) is an acceleration sensor, and wherein a detection result ({right arrow over (g)}′o, {right arrow over (g)}′1, {right arrow over (g)}′2) of the acceleration sensor quantitatively specifies at least the direction of an acceleration acting on the input tool in relation to an internal coordinate system (x′, y′, z′) of the input tool (7).
The object handling system according to claim 18, characterised in that the input tool (7) and the control unit (6) are equipped with wireless interfaces (16, 17) for mutual communication.
The object handling system according to claim 18, characterised in that the manipulator is an end effector (5) of a robot arm (2) with articulated members (4).
The object handling system according to claim 18, further including an input tool, and wherein the input tool includes a switch (19) which responds to the presence of a foreign body in a region of the environment surrounding the input tool.
Dependencies are inferred from the claim text.