Abstract:
Die vorliegende Erfindung betrifft ein Verfahren und eine Vorrichtung zur Positionsbestimmung einer Kinematik (110, 115, 120) einer bevorzugt hydraulischen Maschine, wobei die Kinematik (110, 115, 120) gegenüber einem die Positionsbestimmung durchführenden Maschinenbereich (105) peripher angeordnet ist, und wobei es zu Betriebssituationen der Maschine kommt, in denen zwischen der Kinematik (110, 115, 120) und dem die Positionsbestimmung durchführenden Maschinenbereich (105) keine signaltechnische Verbindung möglich ist, und wobei insbesondere vorgesehen ist, dass die Position der Kinematik (110, 115, 120) anhand eines von dem die Positionsbestimmung durchführenden Maschinenbereich (105) durchgeführten direkten signaltechnischen Messverfahrens (230, 235, 240, 245) ermittelt wird, dass die Position der Kinematik (110, 115, 120) in Betriebssituationen der Maschine, in denen keine signaltechnische Verbindung möglich ist, anhand eines indirekten Messverfahrens (210, 215, 220, 225) ermittelt wird, wobei anhand des direkten Messverfahrens (230, 235, 240, 245) und anhand des indirekten Messverfahrens (210, 215, 220, 225) ermittelte Positionsdaten zur Positionsbestimmung der Kinematik (110, 115, 120) gemeinsam ausgewertet werden.
Abstract:
A method and device for securing operation of automatic or autonomous equipment where the equipment comprises a component being displaced a space, and where the method comprises: - to calculate the component position in the space by means of data from the component control system, and where the method further comprises: - to measure non-contact wise the component real position; and - to calculate a deviation between the calculated position and the real position.
Abstract:
The invention relates to a device and a method for tool centre point calibration of an industrial robot (1). The device is intended to calibrate an industrial robot (1) with respect to a tool (3) mounted on the robot. The device comprises a camera (4) designed to take a plurality of images of at least part of the robot tool (3) for a plurality of different tool orientations, an image-processing unit (6) designed to determine the positions of the robot tool (3) in said orientations based on said images, a calculation module (7) adapted to calculate the position of the centre point of the robot tool (3), based on said determined positions, and a control module adapted to calculate the corrective movements of the robot.
Abstract:
A method for calibrating a robot system (10) comprising a planar pick surface (90) comprises: bringing a robot gripper (30) to a first location against the pick surface (90); and generating a first image of the robot gripper (30) from below. When knowing that a certain identifiable part of the robot gripper (30) in images always lies against the planar pick surface (90), the position and orientation of the pick surface (90) in relation to a manipulator coordinate frame (70) can be fully defined if the robot gripper's (30) orientation in relation to the pick surface (90) is known, or if there are images on identifiable parts of the robot gripper (30) in at least three different positions against the pick surface (90).
Abstract:
Positional measurements for a robot arm are made using a light ray projector (10) mounted on the robot arm and arranged to emit light rays (50) along a multiplicity of distinct paths that are fixed relative to the projector (10), and a removable support frame (20) carrying a multiplicity of image sensors (22) at fixed positions relative to the support frame (20), the support frame surrounding the base of the robot arm. A signal processor (25) connected to the light sensors (22) determines the positions at which light rays (50) are incident on the image sensors (22), and hence determines positional information of a system of axes associated with the projector (10) relative to the frame (20). This enables relative positional measurements to be made substantially in real time, and in an accurate and cost- effective manner.
Abstract:
Method and system for finding a relationship between a tool-frame attached at a robot wrist and kinematics using an external camera. Position and orientation of the robotic wrist define a known wrist-frame, leaving initially unknown the relationship of the tool-frame with the Tool Center Point (TCP). The camera captures an image of the tool and an appropriate point is designated as the TCP. The robot is moved placing the wrist into poses, each pose constrained such that the TCP point falls within a specified geometric constraint. A TCP relative to the wrist frame is calculated as a function of the geometric constraint, and its position and orientation for each pose. The tool- frame relative to the wrist frame may be the calculated TCP. Refining calibration of the tool-frame may account for tool orientation and operational direction. The camera may calibrate using a simplified extrinsic technique.
Abstract:
Apparatus and method for correcting a travelling route for a robot, the method comprising the steps of setting a tool (2) mounted on a leading end of a wrist of a robot (1) at a preset photographing position P1, photographing the front and side of the tool (2) by cameras (41, 42) to thereby obtain three-dimensional configuration data of the tool (2), comparing the three-dimensional configuration data so obtained with standard configuration data to thereby detect a deformed amount of the tool (2), and modifying a travelling route for a robot instructed by a program based on the deformed amount.