EP4633877A1 - Greifen mit verpackungsmaterial - Google Patents
Greifen mit verpackungsmaterialInfo
- Publication number
- EP4633877A1 EP4633877A1 EP23808746.4A EP23808746A EP4633877A1 EP 4633877 A1 EP4633877 A1 EP 4633877A1 EP 23808746 A EP23808746 A EP 23808746A EP 4633877 A1 EP4633877 A1 EP 4633877A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- data
- scene
- packaging material
- camera
- classification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Program-controlled manipulators
- B25J9/16—Program controls
- B25J9/1694—Program controls characterised by use of sensors other than normal servo-feedback from position, speed or acceleration sensors, perception control, multi-sensor controlled systems, sensor fusion
- B25J9/1697—Vision controlled systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Program-controlled manipulators
- B25J9/16—Program controls
- B25J9/1612—Program controls characterised by the hand, wrist, grip control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Program-controlled manipulators
- B25J9/16—Program controls
- B25J9/1656—Program controls characterised by programming, planning systems for manipulators
- B25J9/1669—Program controls characterised by programming, planning systems for manipulators characterised by special application, e.g. multi-arm co-operation, assembly, grasping
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/70—Determining position or orientation of objects or cameras
- G06T7/73—Determining position or orientation of objects or cameras using feature-based methods
- G06T7/74—Determining position or orientation of objects or cameras using feature-based methods involving reference images or patches
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20081—Training; Learning
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20084—Artificial neural networks [ANN]
Definitions
- the present invention relates to a method for determining a grip position, a system for operating at least one gripping robot, and a computer program or computer program product.
- a robot equipped with a gripper In bin-picking applications, a robot equipped with a gripper typically picks objects from a bin and places or drops the picked objects at a target location. This typically involves planning a collision-free path for the robot arm to bring the gripper to a target position where it can successfully grasp the object during picking.
- objects are usually packed in a container that contains deformable packaging material to protect the objects.
- deformable packaging material for example, in the food industry, fresh fish are covered with ice, and in other applications, fragile objects are protected by wood chips or Styrofoam flakes. This can be a challenge for path planning algorithms, as there may not be collision-free target positions for the gripper that avoid the packaging material while allowing the object to be successfully gripped.
- the object of the present invention is in particular to improve this.
- a method for operating a gripping robot is provided.
- at least one object to be gripped by the gripping robot is located, in particular at least partially, in packaging material and/or is covered by it, in particular at least partially, in particular in a container with packaging material.
- the method for operating the Gripping robot a step for determining scene data of a scene by means of a camera, in particular an RGBD camera, wherein the scene data describes depth information and color information of the scene.
- the depth information and color information of the scene can be determined in one embodiment by means of the camera, in particular by means of a stereo camera that is set up to record depth information of the scene and a camera that is set up to record color information of the scene.
- means for recording depth information and color information can be designed, in particular combined in a camera, such as in particular in an RGBD camera.
- the method further comprises a step for determining classification data, which are determined in particular by classifying the scene data.
- the classification data describe an affiliation with packaging material. In one embodiment, this can be determined by applying known classification methods.
- the method further comprises determining a collision object, in particular for movement planning and/or grip position planning, by filtering, in particular segmenting, the scene data based on the classification data. In one embodiment, this makes it possible for the scene data to comprise less data than, for example, before filtering or without determining a collision object.
- the method further comprises determining grip position data and/or movement data, wherein the grip position data in one embodiment describes at least one grip position for the gripping robot on at least one object to be gripped and the movement data describes at least one movement path or a movement for at least part of the gripping robot.
- scene as used herein is to be understood in particular as a snapshot of a (relevant) environment, which includes a scenery with objects, in particular the container, the objects to be grasped and/or the packaging material; dynamic elements, such as in particular at least parts of the robot; the field of view(s) the camera(s) and/or state(s) of the robot or camera, as well as the connection between these entities.
- the term "camera” as used herein is to be understood in particular as a recording device for recording digital and/or three-dimensional images, and can in particular have at least one 3D camera and/or at least two spatially spaced cameras and/or at least one scanner, preferably for three-dimensional scanning.
- the scene data mentioned here has depth information, preferably a point cloud, more preferably a three-dimensional point cloud, and can in particular be such or consist of such, and color information, wherein, depending on the recording device, color information is represented as 2D information in the scene data or is or can be assigned as 3D information to the depth information, in particular to the points of the point cloud.
- the packaging material is taken into account in the path planning, in particular by determining a collision object, or to be included, in particular based on the determination of movement data, in particular in contrast to the prior art, in which the packaging material is usually ignored and the path planning is based (solely) on the detected objects and a priori known objects, e.g. the container at a configured position.
- the scene described by the scene data can advantageously be "positively" defined for the trajectory planner and/or collision checker with a collision object described therein.
- the prior art usually starts with an empty scene and then adds known objects to the scene, in particular recognized known objects in the container and/or the container itself, etc.
- the point cloud of the scene described by the scene data can be used as a collision object, since the collision object, in particular the point cloud of the collision object, the does not (or no longer) contain packaging material, which can lead to more possible handle positions and/or path planning, especially in comparison with the state of the art or in comparison with collision objects that are not determined based on classification data.
- the method comprises the step of setting the scene in the camera or the like prior to determining scene data.
- Recording device in particular by appropriate adjustment of the robot arm and/or moving and/or focusing of the recording device or the camera.
- the method comprises moving the gripping robot based on the determined movement data and/or gripping, in particular with the gripping robot, based on the determined grip position data.
- this allows more (collision-free) handle positions and/or more (collision-free) movement paths to be determined than in the prior art or than when avoiding collisions with the packaging material.
- the invention is based on the approach that the, in particular entire, scene is or will be described by the (determined) scene data, in particular including the, in particular complete, depth information or point cloud, and based on this, parts of the scene are removed in the scene data that can be assumed not to pose a problem in the event of potential collisions during movement and/or gripping, such as in particular the packaging material in the container.
- the invention is further based in embodiments on the approach that the (remaining parts of the) depth information or point cloud of the collision object (as described herein) can be used for collision checks.
- the path planning is advantageously (significantly) more robust in embodiments, since the point cloud depicts or can depict the real situation better than a scene that was set up (only) on the basis of (recognized) previously known or preconfigured objects, such as in particular a CAD model and a position of the container, or not fully recognized objects, in particular in the container.
- determining the collision object includes removing depth information based on the classification data, in particular where the classification data indicates affiliation with packaging material or where scene data has been or is classified as packaging material.
- relevant objects for path planning or motion planning can be (better) recognized or taken into account.
- a collision check can thus be improved, in particular in some embodiments the risk can be reduced that not all relevant objects are taken into account in the collision check, such as objects that are present in the container but are not recognized by the object recognition, for example because of partial or section-wise coverage with packaging material, so that in embodiments there can advantageously be fewer collisions with these objects than in prior art methods.
- the classification is carried out pixel by pixel and/or section by section based on the scene data, in particular based on the color information of the scene data, wherein the color information of the scene data corresponds to a 2D image of the scene or wherein the color information is associated with the respective depth information.
- the segmentation of the packaging material in embodiments can also advantageously benefit the object recognition algorithms, which in particular (must) estimate the position of the objects in the container.
- these algorithms contain a final position correction step that geometrically aligns the object model (CAD and/or point cloud) to the scene represented by the scene data, in particular the point cloud. If the objects in an embodiment in the collision object are already from the Packaging material are segmented or the collision object (only) contains scene data that has not been classified as packaging material, incorrect point assignments between the model of the known object and the packaging material in the scene are (advantageously) reduced or avoided.
- the removal of the depth information is based on a mapping of 2D data to 3D data of the scene data, in particular of 2D color information to 3D depth information or point cloud, in particular if the color information is 2D information or 2D data.
- the classification can be carried out pixel by pixel and/or section by section based on 2D color information of the scene data.
- the mapping of 2D data to 3D depth information or point cloud can in one embodiment be based on intrinsic parameters of the camera, such as in particular focal length, aperture, field of view, resolution or corresponding camera parameters, and/or extrinsic parameters of the camera, such as in particular position and/or orientation or the like.
- packaging material or areas classified as packaging material in the 2D color information may be (advantageously) removed from the depth information of the scene, so that a determined collision object has (at least essentially only) depth information that can be or is assigned to known objects and/or unknown objects.
- the point cloud may (advantageously) also contain objects that were not intended, such as in particular a random object that was left (by someone) in the container.
- the method described herein is applicable in embodiments to various, in particular all, objects in the container, such as in particular various fish in great variety or other objects with corresponding variety.
- colour information can be used to filter for packaging material more reliably, so that a collision object, at least essentially, only contains objects that are either known, such as in particular a container in which the objects and the packaging material are located, parts of the Robot, such as in particular the gripper, in particular depending on the attachment of the camera, and/or objects to be gripped or objects that are to be gripped but are not (yet) known.
- this can make it possible to determine a handle position more robustly, especially when there are different objects in the container.
- the scene data is classified using a convolutional neural network (CNN).
- CNN convolutional neural network
- training of the CNN is comparatively simpler because in particular only one class is or has to be recognized or classified, namely the packaging material, such as in particular ice, wood chips or plastic material, such as in particular packaging chips such as polystyrene flakes or the like.
- packaging material such as in particular ice, wood chips or plastic material, such as in particular packaging chips such as polystyrene flakes or the like.
- the determination of grip position data and/or movement data is additionally based on known objects in the scene, in particular on a CAD model of the object to be gripped and/or on a CAD model of the container in which the objects and the packaging material are located.
- the camera is attached to the gripping robot and/or the camera is attached independently of the gripping robot, in particular with a view of the scene.
- a first camera and a second camera in particular a second camera that is different from the first camera, can be used to determine the scene data.
- the first scene data and second scene data determined by the first and second cameras can be fused. become scene data, which can then be further processed as described herein.
- a system for operating at least one robot is provided.
- the system is set up to carry out a method described herein.
- the system has at least one camera, in particular an RGBD camera, and at least one gripping robot.
- the system and/or its means further have means for determining scene data of a scene.
- the system and/or its means have means for classifying the scene data, in particular for determining classification data.
- the system and/or its means have means for determining a collision object.
- the system and/or its means have means for determining grip position data and/or movement data.
- this advantageously makes it possible to determine a gripping position that would be classified as being subject to collision according to prior art methods.
- a gripper of the gripping robot can advantageously penetrate into the packaging material, in particular a comparatively better gripping position can be determined.
- a system and/or means in the sense of the present invention can be designed in terms of hardware and/or software, in particular at least one, preferably data- or signal-connected, especially digital, processing unit, especially microprocessor unit (CPU), graphics card (GPU) or the like, and/or one or more programs or program modules, preferably with a memory and/or bus system.
- the processing unit can be designed to process commands that are implemented as a program stored in a memory system, to detect input signals from a data bus and/or to output signals to a data bus.
- a memory system can have one or more, in particular various storage media, in particular optical, magnetic, solid-state and/or other non-volatile media.
- the program can be designed in such a way that it embodies or is capable of carrying out the methods described here, so that the processing unit can carry out the steps of such methods and thus in particular can operate the robot.
- a computer program product can have, in particular be, a storage medium, in particular a computer-readable and/or non-volatile one, for storing a program or instructions or with a program or instructions stored thereon.
- execution of this program or these instructions by a system or a controller, in particular a computer or an arrangement of several computers causes the system or the controller, in particular the computer(s), to carry out a method described here or one or more of its steps, or the program or the instructions are set up for this purpose.
- one or more, in particular all, steps of the method are carried out completely or partially automatically, in particular by the controller or its means.
- Fig. 1 a system according to an embodiment of the present invention
- Fig. 4 a collision object according to an embodiment
- FIG. 5 a method in a block diagram representation according to an embodiment of the present invention.
- Figure 1 shows a schematic view of a system 1 with an exemplary gripping robot 2, 3 that has a gripper 3.
- the gripper 3 is shown schematically in Figure 1 with two fingers, but in some embodiments it can have more fingers or another type of gripping device that is designed to grip, in particular pick up, objects.
- a scene 10 is also shown that schematically shows known objects 5 in a container 6.
- a camera 4 is designed to capture the scene 10, in particular to determine scene data.
- the camera 4 in the exemplary representation in Figure 1 is mounted independently of the gripping robot 2, 3 and is connected to a processing unit 7 in data communication, which in turn is connected to the robot 2, 3 in data communication.
- the processing unit 7 can be integrated into the camera 4 and/or the robot 2, 3.
- the objects 5 in the container 6 are embedded in packaging material 8 (not shown here).
- Figure 2 schematically shows a scene 10 in a top view, as can be recorded in particular by a camera 4, as shown in particular in Figure 1.
- the container 6 is not shown in Figure 2.
- the scene data that describe the scene 10 include depth information and color information, as shown here by white-colored objects 5 and black-colored packaging material.
- Figure 2 shows by way of example that the objects 5 are at least partially covered by packaging material 8, or embedded in it.
- the packaging material 8 is shown here in a simplified circular shape, but in embodiments it can have or assume any and in particular different shapes, it can in particular be ice, packaging material made of plastic, packaging material made of natural materials, such as in particular wood, paper, cardboard or cellulose, etc.
- Figure 2 shows an unknown object 9 that was, for example, accidentally left in the container 6.
- Figure 3 shows the same scene 10 as in Figure 2, with the difference that the packaging material 8 in the scene 10 was determined, in particular classified. Accordingly, Figure 3 shows classification data that describe an affiliation with packaging material. This is indicated by the dashed lines of the packaging material 8.
- the classification can be carried out in embodiments based on the color of the packaging material 8, or on other criteria that characterize the packaging material 8.
- the unknown Object 9 is not classified as packaging material 8 because it does not have the properties, in particular a characteristic property, of the packaging material 8, such as in particular a certain (previously known) colour and/or (previously known) shape.
- Figure 4 schematically shows the same scene 10 as in Figure 1 or Figure 2, with the difference that Figure 5 shows a collision object that was determined by filtering, in particular segmenting, the scene data based on the classification data. Furthermore, a determined handle position 11 is shown, which is or is described by handle position data. Furthermore, a handle position 1T on the unknown object 9 is shown as an example, which was determined based on the collision object. Here, it can be seen as an example that the handle position 11' is set at a point on the unknown object 9 that is covered by packaging material 8. Such a handle position 11' would have resulted in a collision with the methods customary in the prior art and would therefore not have been planned.
- Figure 5 schematically shows a method 20 according to an embodiment as a block diagram.
- the determination of scene data S10 is carried out in particular by means of a camera that is directed at a scene, the scene in embodiments comprising objects to be grasped with or in packaging material.
- classification data is determined S12, which describes whether the determined scene data belongs to packaging material.
- S14 represents, by way of example, a determination of a collision object that is determined based on the determined classification data using the determined scene data.
- S16 represents a determination of grip position data and/or movement data that are determined based on the determined collision object.
- the method 20 can further comprise a step S18, which is shown in dashed lines in Figure 5, S18 representing, by way of example, a gripping based on the determined grip position data and/or a movement based on the determined movement data of the robot.
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- Engineering & Computer Science (AREA)
- Robotics (AREA)
- Mechanical Engineering (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Manipulator (AREA)
- Image Analysis (AREA)
Abstract
Description
Claims
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022213568.7A DE102022213568B3 (de) | 2022-12-13 | 2022-12-13 | Kalibrieren einer Steuerung |
| DE102022213555.5A DE102022213555A1 (de) | 2022-12-13 | 2022-12-13 | Objektlagedetektion mit automatisierter Merkmalsextraktion und/oder Merkmalszuordnung |
| DE102022213557.1A DE102022213557B3 (de) | 2022-12-13 | 2022-12-13 | Betreiben eines Roboters mit Greifer |
| DE102022213562.8A DE102022213562A1 (de) | 2022-12-13 | 2022-12-13 | Greifen mit Verpackungsmaterial |
| PCT/EP2023/081832 WO2024125921A1 (de) | 2022-12-13 | 2023-11-15 | Greifen mit verpackungsmaterial |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4633877A1 true EP4633877A1 (de) | 2025-10-22 |
Family
ID=88838801
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23808745.6A Pending EP4633876A1 (de) | 2022-12-13 | 2023-11-15 | Kalibrieren einer greifersteuerung |
| EP23809139.1A Pending EP4634861A1 (de) | 2022-12-13 | 2023-11-15 | Objektlagedetektion mit automatisierter merkmalsextraktion und/oder merkmalszuordnung |
| EP23808744.9A Pending EP4633875A1 (de) | 2022-12-13 | 2023-11-15 | Betreiben eines roboters mit greifer |
| EP23808746.4A Pending EP4633877A1 (de) | 2022-12-13 | 2023-11-15 | Greifen mit verpackungsmaterial |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23808745.6A Pending EP4633876A1 (de) | 2022-12-13 | 2023-11-15 | Kalibrieren einer greifersteuerung |
| EP23809139.1A Pending EP4634861A1 (de) | 2022-12-13 | 2023-11-15 | Objektlagedetektion mit automatisierter merkmalsextraktion und/oder merkmalszuordnung |
| EP23808744.9A Pending EP4633875A1 (de) | 2022-12-13 | 2023-11-15 | Betreiben eines roboters mit greifer |
Country Status (3)
| Country | Link |
|---|---|
| EP (4) | EP4633876A1 (de) |
| CN (4) | CN120344356A (de) |
| WO (4) | WO2024125921A1 (de) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015089575A (ja) * | 2013-11-05 | 2015-05-11 | セイコーエプソン株式会社 | ロボット、制御装置、ロボットシステム及び制御方法 |
| EP3871172A1 (de) * | 2018-10-25 | 2021-09-01 | Berkshire Grey, Inc. | Systeme und verfahren zum lernen zur extrapolation optimaler zielrouting- und handhabungsparameter |
| DE112019000125B4 (de) * | 2018-10-30 | 2021-07-01 | Mujin, Inc. | Systeme, vorrichtungen und verfahren zur automatisierten verpackungsregistrierung |
| DE102021109036A1 (de) * | 2021-04-12 | 2022-10-13 | Robert Bosch Gesellschaft mit beschränkter Haftung | Vorrichtung und verfahren zum lokalisieren von stellen von objekten aus kamerabildern der objekte |
-
2023
- 2023-11-15 WO PCT/EP2023/081832 patent/WO2024125921A1/de not_active Ceased
- 2023-11-15 EP EP23808745.6A patent/EP4633876A1/de active Pending
- 2023-11-15 WO PCT/EP2023/081830 patent/WO2024125919A1/de not_active Ceased
- 2023-11-15 WO PCT/EP2023/081831 patent/WO2024125920A1/de not_active Ceased
- 2023-11-15 CN CN202380085573.6A patent/CN120344356A/zh active Pending
- 2023-11-15 CN CN202380085634.9A patent/CN120359107A/zh active Pending
- 2023-11-15 EP EP23809139.1A patent/EP4634861A1/de active Pending
- 2023-11-15 CN CN202380085633.4A patent/CN120359544A/zh active Pending
- 2023-11-15 WO PCT/EP2023/081829 patent/WO2024125918A1/de not_active Ceased
- 2023-11-15 EP EP23808744.9A patent/EP4633875A1/de active Pending
- 2023-11-15 CN CN202380085574.0A patent/CN120344357A/zh active Pending
- 2023-11-15 EP EP23808746.4A patent/EP4633877A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN120344357A (zh) | 2025-07-18 |
| WO2024125921A1 (de) | 2024-06-20 |
| WO2024125920A1 (de) | 2024-06-20 |
| CN120359544A (zh) | 2025-07-22 |
| CN120359107A (zh) | 2025-07-22 |
| WO2024125919A1 (de) | 2024-06-20 |
| EP4633876A1 (de) | 2025-10-22 |
| WO2024125918A1 (de) | 2024-06-20 |
| EP4634861A1 (de) | 2025-10-22 |
| CN120344356A (zh) | 2025-07-18 |
| EP4633875A1 (de) | 2025-10-22 |
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