WO2024262136A1 - 作業ロボット、作業ロボットの制御方法、作業ロボットの制御プログラム、及び作業システム - Google Patents
作業ロボット、作業ロボットの制御方法、作業ロボットの制御プログラム、及び作業システム Download PDFInfo
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- WO2024262136A1 WO2024262136A1 PCT/JP2024/014142 JP2024014142W WO2024262136A1 WO 2024262136 A1 WO2024262136 A1 WO 2024262136A1 JP 2024014142 W JP2024014142 W JP 2024014142W WO 2024262136 A1 WO2024262136 A1 WO 2024262136A1
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- Prior art keywords
- work
- robot
- arm
- unit
- item
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J15/00—Gripping heads and other end effectors
- B25J15/04—Gripping heads and other end effectors with provision for the remote detachment or exchange of the head or parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J13/00—Controls for manipulators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J13/00—Controls for manipulators
- B25J13/006—Controls for manipulators by means of a wireless system for controlling one or several manipulators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J13/00—Controls for manipulators
- B25J13/08—Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J19/00—Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
- B25J19/02—Sensing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J5/00—Manipulators mounted on wheels or on carriages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J5/00—Manipulators mounted on wheels or on carriages
- B25J5/007—Manipulators mounted on wheels or on carriages mounted on wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Program-controlled manipulators
- B25J9/0084—Program-controlled manipulators comprising a plurality of manipulators
-
- 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
- B25J9/1615—Program controls characterised by special kind of manipulator, e.g. planar, scara, gantry, cantilever, space, closed chain, passive/active joints and tendon driven manipulators
- B25J9/162—Mobile manipulator, movable base with manipulator arm mounted on it
-
- 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
- B25J9/1671—Program controls characterised by programming, planning systems for manipulators characterised by simulation, either to verify existing program or to create and verify new program, CAD/CAM oriented, graphic oriented programming 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
- B25J9/1679—Program controls characterised by the tasks executed
- B25J9/1682—Dual arm manipulator; Coordination of several manipulators
Definitions
- This disclosure relates to a work robot, a control method for a work robot, a control program for a work robot, and a work system.
- the inventors also discovered that, for example, when the same product is produced during the same period at multiple work sites distributed around the world, it is difficult for workers at each work site to quickly set up a work environment for the work robot.
- the present disclosure aims to provide a work robot, a control method for the work robot, a control program for the work robot, and a work system that can produce products using a work robot without a human having to configure a work environment in advance to match the work content of the work robot.
- the work robot disclosed herein comprises at least one arm that performs an instructed action on an item, a mobile unit that moves on a floor surface, and a control unit that controls the arm and the mobile unit to autonomously perform work on the item in cooperation with other work robots using status information that represents at least one of the status of the other work robots and the robot's own status.
- the control method for a work robot disclosed herein is for a work robot equipped with at least one arm that performs an instructed action on an item and a mobile unit that moves on a floor surface, and the computer executes a process to control the arm and the mobile unit so that the work robot autonomously performs work on the item in cooperation with the other work robots, using status information that represents at least one of the status of the other work robots and the robot's own status.
- the control program for a work robot disclosed herein is a program for causing a computer to execute a process for controlling a work robot equipped with at least one arm that performs an instructed action on an item and a mobile unit that moves on a floor surface, so that the work robot autonomously performs work on the item in cooperation with other work robots, using status information that represents at least one of the status of other work robots and the robot's own status.
- the work system disclosed herein comprises a plurality of work robots each having at least one arm that performs an instructed action on an item, a mobile unit that moves on a floor surface, and a control unit that controls the arm and the mobile unit to autonomously perform work on the item in cooperation with the other work robots using status information that represents at least one of the status of the other work robots and the work robot's own status, and a communication unit that performs data communication with each of the work robots and a server that transmits information related to the production of the item to each of the work robots.
- the present disclosure has the advantage that products can be produced using a work robot without a person having to configure a work environment in advance to match the work content of the work robot.
- FIG. 1 is a diagram showing an example of a configuration of a work system
- FIG. 2 is a diagram showing an example of a functional configuration of a working robot
- FIG. 3 is a diagram showing an example of a working robot
- FIG. 4 is a flowchart showing an example of a flow of control processing in a working robot.
- FIG. 5 is a diagram showing an example in which a work robot is fixed to a floor surface using a support
- FIG. 6 is a diagram showing an example of a working robot equipped with a tool on a moving unit;
- FIG. 1 is a diagram showing an example of a configuration of a work system
- FIG. 2 is a diagram showing an example of a functional configuration of a working robot
- FIG. 3 is a diagram showing an example of a working robot
- FIG. 4 is a flowchart showing an example of a flow of control processing in a working robot.
- FIG. 5 is a diagram showing an example in which a work robot is fixed to a floor surface
- FIG. 7 is a diagram showing an example of a working robot that assembles parts in cooperation with other working robots;
- FIG. 8 is a diagram showing an example of a working robot equipped with a joint;
- FIG. 9 is a diagram showing an example of linked work robots;
- FIG. 10 is a diagram showing an example of a production line in which a plurality of work robots are linked together.
- FIG. 11 is a diagram showing an example in which a work robot located at the final stage of a production line functions as an AMR.
- FIG. 1 is a diagram showing an example of the configuration of a work system 1 that produces products using a work robot 30.
- the work system 1 produces a variety of products, such as transportation machinery such as cars, electrical equipment such as air conditioners, molds, food, beverages, magazines, sporting goods, and woodworking products.
- the work system 1 produces electrical equipment as an example.
- the work system 1 is not limited to the production of products, and may also perform other work on items, such as repairing or destroying them.
- the work system 1 includes a server 20 and multiple work robots 30.
- the server 20 and work robots 30 are located in a factory 40, and a simulation device 10, which is an example of an external device, is located in a remote location away from the factory 40, such as the head office. Therefore, the simulation device 10 and the server 20 are connected by a wide area network 2 such as a WAN (Wide Area Network) or the Internet.
- the server 20 and work robots 30 are connected by a local network 3 such as a LAN (Local Area Network), local 5G, and local 6G.
- LAN Local Area Network
- the wide area network 2 and the local network 3 may be wired or wireless, but since the work robot 30 moves around the factory 40 as described below, it is preferable to construct the local network 3 wirelessly. Also, the server 20 does not necessarily need to be located within the factory 40; for example, the server 20 may be constructed using cloud computing provided on the wide area network 2.
- the work system 1 includes N work robots 30 (N is an integer equal to or greater than 2).
- N is an integer equal to or greater than 2.
- work robot 30 When distinguishing between the individual work robots 30, they are represented by adding a number from “1" to "N” after the reference number of the work robot 30.
- work robot 30 When explaining matters common to multiple work robots 30, they are simply referred to as "work robot 30.”
- the factory 40 is equipped with, for example, machine tools 4A that process and produce parts used in products, and storage shelves 4B on which parts purchased from outside are placed.
- the work robot 30 moves to a supply location that supplies product parts, such as the machine tools 4A and storage shelves 4B, and assembles, processes, transports, etc. the parts.
- product parts in this embodiment are an example of items used in products.
- the work system 1 will be explained using an example in which the work robot 30 produces electrical equipment in a factory 40, but the place where the work robot 30 works is not limited to the factory 40 and may be a place where the primary purpose is not to produce products, such as a laboratory or a home, or even outdoors depending on the characteristics of the products being produced.
- the factory 40 is shown in FIG. 1, there may be multiple factories 40, in which case the server 20 of each factory 40 is connected to the wide area network 2. There are no restrictions on the location of each factory 40, and the factories 40 may be distributed around the world, for example.
- the simulation device 10 is a device that simulates the work performed by multiple work robots 30 in cooperation with each other on parts, using work robots 30 placed in a virtual space that reproduces the space in which the work robots 30 perform their work, i.e., the interior of a factory 40.
- the simulation device 10 includes virtual space data 11, an input unit 12, a display unit 13, a simulation execution unit 14, and a communication unit 15.
- the virtual space data 11 is data used to construct in the simulation device 10 a virtual space that faithfully reproduces the space within the factory 40 where the work robot 30 works, i.e. a "virtual factory.”
- the virtual space data 11 includes data on the layout of the factory 40 where the work robot 30 works, floor steps, the positions and shapes of objects installed in the factory 40, the positions and shapes of pillars, and the positions and shapes of parts supply locations such as machine tools 4A and item shelves 4B.
- the input unit 12 receives from the user the work content of each work robot 30 and the constraints on the work performed by the work robot 30.
- the constraints include, for example, the range in which the work robot 30 can move and the threshold of the remaining battery charge at which charging action is initiated.
- the display unit 13 displays the execution process and results of a simulation of work using multiple work robots 30 in a virtual factory.
- the simulation execution unit 14 controls the work robots 30 present in the virtual factory so that each work robot 30 performs work instructed by a user under the specified constraints, and simulates the operation of the work robots 30.
- the simulation execution unit 14 receives the state information of the work robots 30 obtained by the simulation as input, generates teacher data in which the control content at that time is output, and generates a control model 16 corresponding to each work robot 30 through machine learning using the teacher data.
- the state information is information that represents at least one of the state of the other work robots 30 and the state of the work robot 30 itself.
- the work robot 30 acquires at least one of the state of the other work robots 30 and the state of the work robot 30 itself from communication with the other work robots 30, its own sensors 33, and information about its own operation, such as the direction and speed of movement.
- the simulation by the simulation execution unit 14 as in the case of an actual work robot 30, the work robot 30 in the virtual factory acquires state information and is controlled so that it takes optimal action for the acquired state information. Therefore, multiple teacher data are generated that associate state information with control content, such as what kind of control should be performed on the work robot 30 in response to various state information so that the work robot 30 can perform the instructed work.
- the simulation execution unit 14 uses multiple teacher data to perform machine learning of the control model 16 that outputs the control content of the work robot 30 from the state information.
- the server 20 includes a simulation data DB 21, an input unit 22, a setting unit 23, and a communication unit 24.
- the simulation data DB 21 stores the simulation data received from the simulation device 10.
- "DB” is an abbreviation for "database.”
- the setting unit 23 When the setting unit 23 receives an instruction to start production of a product, it associates, with the control model 16 included in the simulation data, designation information that uniquely designates the work robot 30 that will perform the work using the control model 16. The setting unit 23 then sets the control model 16 and virtual space data 11 associated with the designation information for the work robot 30 designated by the designation information. The setting of the control model 16 and virtual space data 11 for the work robot 30 by the setting unit 23 is performed via the local network 3.
- the communication unit 24 communicates data with the server 20 via the wide area network 2, and also communicates data with each work robot 30 via the local network 3.
- the work robot 30 is a robot that autonomously executes tasks instructed for product parts while coordinating with other work robots 30 using the acquired status information and the control model 16.
- the control model 16 outputs the control content for the work robot 30 from the status information, and the work robot 30 performs work according to the control content output by the control model 16, so the control model 16 is also an example of instruction information that instructs the work content for the parts.
- FIG. 2 is a diagram showing an example of the functional configuration of the work robot 30.
- the work robot 30 includes an arm 31, a moving unit 32, a sensor 33, a battery 34, a communication unit 35, and a control unit 36.
- the arm 31 is an example of a work unit that performs a commanded operation on a part.
- the work robot 30 has at least one arm 31. At the joint of each arm 31, the position of the arm 31 is controlled by moving a link attached to the joint in a commanded direction.
- the arm 31 can perform operations such as grasping parts, moving parts, processing parts, and assembling parts together.
- a mounting section is provided to which multiple types of tools 39 can be attached and detached, and the tool 39 according to the work content is mounted on the mounting section under the control of the control section 36.
- a robot hand equipped with multiple movable supports imitating human fingers is mounted on the mounting section.
- a screwdriver for turning screws is mounted on the mounting section. In this way, the tool 39 is switched on the mounting section of the arm 31 according to the work content.
- a robot hand may be mounted on the mounting section of the arm 31, and when screwing a part, the robot hand may grasp a screwdriver to perform screwing. In this way, the mode of grasping different types of tools 39 by the robot hand is also included in the tool 39 switching operation.
- the moving unit 32 is a device that allows the work robot 30 to move on the floor of the factory 40.
- the moving unit 32 realizes the movement of the work robot 30 by rotating a rotating body 32A, such as a wheel or a ball.
- the movement mechanism provided in the moving unit 32 is not limited to one that uses the rotation of the rotating body 32A.
- the moving unit 32 may be equipped with two or more legs instead of the rotating body 32A and move by walking.
- Figure 3 shows an example of a work robot 30 with a rotating body 32A attached to the location where the moving unit 32 comes into contact with the floor surface.
- the work robot 30 shown in Figure 3 has an arm 31 attached to the moving unit 32, but it goes without saying that the work robot 30 may be provided with a body section (not shown) and the arm 31 may be attached to a location other than the moving unit 32, such as the body section.
- the moving unit 32 is also provided with a work surface 32C that can be used, for example, as a workbench for placing parts.
- the sensor 33 of the work robot 30 in FIG. 2 acquires surrounding information that indicates the situation around the work robot 30.
- the work robot 30 is equipped with the sensors 33, for example, a camera 33A, an ultrasonic sensor 33B, and a LiDAR (Light Detection and Ranging) 33C.
- a camera 33A for example, a camera 33A, an ultrasonic sensor 33B, and a LiDAR (Light Detection and Ranging) 33C.
- LiDAR Light Detection and Ranging
- Camera 33A captures at least one of a visible image and an infrared image.
- the image captured by camera 33A may be a video or a still image.
- Camera 33A is primarily used to determine the shape and type of the part grasped by arm 31, and is therefore attached, for example, to the tip of arm 31 in a position where the grasped part is included within the angle of view (see FIG. 3).
- Camera 33A may be a stereo camera, which is an example of a distance sensor that measures the distance to a subject and obtains the positional relationship of surrounding objects as three-dimensional data.
- the ultrasonic sensor 33B measures the distance between the work robot 30 and other objects by measuring the time from transmitting ultrasonic waves to receiving ultrasonic waves reflected by other objects around the work robot 30.
- the ultrasonic sensor 33B is an example of a distance sensor.
- the ultrasonic sensor 33B is mainly used for collision judgment to determine whether the work robot 30 will collide with other objects, so it is attached, for example, to the surface of the work robot 30 that may collide with other objects (see Figure 3). If the shape of the mobile unit 32 is a box-like shape such as a rectangular parallelepiped or cube, the ultrasonic sensor 33B is attached to the four corners of the working surface 32C of the mobile unit 32. This attachment position of the ultrasonic sensor 33B is one example, and it may be attached to the side or arm 31 of the mobile unit 32, or it may be attached to both the mobile unit 32 and the arm 31.
- the LiDAR 33C measures the distance between the work robot 30 and other objects, as well as the position and shape of the other objects, by measuring the time between emitting laser light and receiving the reflected light from other objects around the work robot 30.
- the LiDAR 33C is an example of a distance sensor.
- LiDAR 33C Since LiDAR 33C is primarily used to create maps showing where items are located within factory 40, it is attached in a position that allows a horizontal line of vision.
- the horizontal direction refers to the direction along the floor surface along which work robot 30 moves.
- LiDAR 33C is attached to the side of mobile unit 32 (see Figure 3). This attachment position of LiDAR 33C is just one example, and it may also be attached to arm 31, or to both mobile unit 32 and arm 31.
- the sensors 33 equipped in the work robot 30 are not limited to the camera 33A, ultrasonic sensor 33B, and LiDAR 33C.
- the work robot 30 may be equipped with other types of sensors 33 that acquire surrounding information.
- the work robot 30 may be equipped with at least one additional sensor 33 as necessary, such as a barcode reader, a gyro sensor, a GPS (Global Positioning System) sensor, and an air pressure sensor.
- the work robot 30 does not need to be equipped with all of the camera 33A, ultrasonic sensor 33B, and LiDAR 33C, and it is sufficient to be equipped with at least one of the camera 33A, ultrasonic sensor 33B, and LiDAR 33C.
- the images of the surroundings of the work robot 30 captured by the camera 33A and the LiDAR 33C are an example of surrounding information that represents the situation around the work robot 30.
- the work robot 30 selects the sensor 33 to use to obtain peripheral information depending on the characteristics of the sensor 33 and the characteristics of the object to be measured.
- a marker 8 containing information indicating, for example, its own identification number is attached to the mobile unit 32.
- multiple markers 8 may be attached to the mobile unit 32 so that the markers 8 can be seen from any direction.
- a work robot 30 can identify other work robots 30 by photographing the markers 8 of the other work robots 30 using, for example, a camera 33A and reading the identification number.
- the battery 34 supplies power to various parts of the work robot 30 according to instructions from the control unit 36.
- the battery 34 is capable of receiving power directly from the outside via a wire, as well as wirelessly receiving power from the outside without contact.
- the work robot 30 moves to a wireless power supply device (not shown) in the factory 40 and autonomously charges the battery 34.
- the communication unit 35 communicates data with each of the other work robots 30 and the server 20 through the local network 3. Specifically, the communication unit 35 transmits status information of its own work robot 30 to the other work robots 30 and receives status information of the other work robots 30 in accordance with instructions from the control unit 36. By sharing status information of multiple work robots 30, it is possible to obtain information that would be difficult to obtain with a single work robot 30 alone.
- the communication unit 35 also transmits peripheral information obtained through the sensors 33 and status information of the work robot 30 to the server 20, and receives from the server 20 virtual space data 11, a control model 16 associated with specified information, and various instructions.
- the work robot 30 autonomously performs work on parts, but can also modify its operation according to instructions from the server 20.
- the control unit 36 uses the acquired status information to control the arm 31 and the mobile unit 32 so that the work robot 30 autonomously executes the instructed work on the part while coordinating with the other work robots 30. To achieve this, the control unit 36 performs the control required for the sensor 33, the battery 34, and the communication unit 35 so that the work robot 30 can carry out the instructed work.
- control unit 36 inputs the status information, which is updated successively, into the control model 16, and performs autonomous control of the work robot 30 according to the control content output from the control model 16. In other words, the control unit 36 performs autonomous control of the work robot 30 while successively determining the optimal control content for the latest status information using the control model 16.
- the control unit 36 is configured using a computer 38 including a CPU (Central Processing Unit) 36A, which is an example of a processor, a RAM (Random Access Memory) 36B, and a non-volatile memory 36C.
- a CPU Central Processing Unit
- RAM Random Access Memory
- Non-volatile memory 36C prestores various programs, including control program 37 that CPU 36A loads to control work robot 30, and various parameters that CPU 36A references when controlling work robot 30.
- RAM 36B is used as a temporary work area for CPU 36A.
- Figure 4 is a flow chart showing an example of the flow of the control process of the work robot 30 executed when a command to start production of a product is received from the server 20.
- the CPU 36A of the work robot 30 reads the control program 37 stored in the non-volatile memory 36C and executes the control process.
- Each work robot 30 executes the control process in response to the command to start production of a product, but since the same control process is executed by each work robot 30, the following explanation will focus on one work robot 30 and explain the control process executed by the work robot 30.
- the CPU 36A determines, as an initial process, whether or not the designation information associated with the control model 16 received from the server 20 matches the identification number of its own work robot 30. Only when the designation information matches the identification number of the work robot 30, i.e., only when the designation information designates its own work robot 30, does the CPU 36A execute the control process for the work robot 30 shown in FIG. 4. Note that the control model 16 and virtual space data 11 associated with its own identification number are stored in the non-volatile memory 36C of each work robot 30.
- step S10 the CPU 36A controls the LiDAR 33C to acquire an image of the surroundings of the work robot 30.
- the CPU 36A may also control the camera 33A to acquire an image of the surroundings of the work robot 30.
- step S20 the CPU 36A applies a known image analysis method to the surrounding image acquired in step S10 to recognize the surrounding environment, such as what is in which direction.
- Shape data of objects in the factory 40 such as the machine tool 4A, the storage shelf 4B, and the work robot 30, is included in advance in the virtual space data 11. Therefore, by comparing the shapes of the objects included in the surrounding image with the object shape data, the CPU 36A can identify the type, position, and orientation of objects within the reach of the laser light emitted from the LiDAR 33C, and can create a map of the inside of the factory 40.
- step S30 the CPU 36A controls the mobile unit 32 according to the control content obtained by inputting status information into the control model 16 while referring to the map created in step S20, and moves the work robot 30 toward the target position set by simulation.
- the target position is set to the machine tool 4A, and a plurality of work robots 30 work together to perform tasks such as assembly, processing, and transportation on parts produced by the machine tool 4A, but the target position may be the goods shelf 4B or another location.
- Setting the target position to the machine tool 4A means setting the target position to a position that includes parts produced by the machine tool 4A within the reach of the arm 31.
- the target position is an example of position information received from the server 20 together with the control model 16 and the virtual space data 11, and is included in the simulation data.
- the state information input to the control model 16 includes information that represents the operation and internal state of the work robot 30 itself, such as the direction and speed of movement of the work robot 30.
- the CPU 36A may control the communication unit 35 to obtain status information from each of the other work robots 30, and control the moving unit 32 according to the control content obtained by inputting the status information of the other work robots 30 together with the status information of the CPU 36A's own work robot 30 into the control model 16.
- the CPU 36A may control the mobile unit 32 according to the control content obtained by inputting only the status information of the other work robots 30 into the control model 16, without inputting the status information of its own work robot 30 into the control model 16.
- Information acquired by the sensor 33 provided on the work robot 30, such as the surrounding image and the map, and information created from the information acquired by the sensor 33, represent the internal state recognized by the work robot 30. Therefore, information such as the surrounding image and the map are also examples of state information that represent the state of the work robot 30.
- CPU 36A controls ultrasonic sensor 33B to measure the distance to other objects while moving work robot 30, and determines the possibility of collision with other objects.
- CPU 36A may determine the possibility of collision with other objects using surrounding images captured by camera 33A or LiDAR 33C, but measuring the distance to other objects using ultrasonic waves reduces the load on CPU 36A rather than measuring the distance to other objects from surrounding images. Therefore, it is preferable to determine the possibility of collision with other objects using ultrasonic sensor 33B.
- step S50 the CPU 36A determines that there is a possibility of collision with another object, it proceeds to step S60.
- step S60 the CPU 36A modifies the movement path so as not to collide with other objects, and then proceeds to step S70.
- step S50 determines whether there is no possibility of collision with another object. If it is determined in step S50 that there is no possibility of collision with another object, the process proceeds to step S70 without executing the process of step S60.
- step S70 the CPU 36A determines whether the work robot 30 has reached the target position set by the simulation. Whether the work robot 30 has reached the target position is determined, for example, based on the distance to the destination machine tool 4A or item shelf 4B, and the orientation of the machine tool 4A or item shelf 4B included in the peripheral image.
- the CPU 36A may use a map created from the surrounding image to set three-dimensional coordinates in the factory 40 that are the same as the three-dimensional coordinates set in the virtual factory included in the simulation data, and determine whether the work robot 30 has arrived at the target position based on the coordinate point of the work robot 30 in the three-dimensional coordinates.
- the CPU 36A may identify the position of the work robot 30 within the factory 40 from the direction and distance of movement of the work robot 30, and determine whether the work robot 30 has reached the target position.
- bar codes or characters indicating location information within the factory 40 may be displayed at various points on the floor, and the CPU 36A may read the location information using a camera 33A or a bar code reader provided on the work robot 30 to determine whether the work robot 30 has reached the target position.
- the CPU 36A may also use the camera 33A to recognize a position reference point whose position is fixed, such as a pillar, and use preset position information for the recognized position reference point to determine whether the work robot 30 has arrived at the target position.
- the position information of the object that serves as the position reference point may be stored in advance, for example, in the non-volatile memory 36C.
- the CPU 36A may transmit data including the transmission time from the work robot 30 and determine whether the work robot 30 has arrived at the target position by measuring the position of the work robot 30 from the difference in the reception time of the data at each access point (not shown) within the local network 3.
- step S10 a new image of the surroundings is acquired at the destination.
- the CPU 36A controls the mobile unit 32 to autonomously move the work robot 30 toward the target position while recognizing the surrounding environment and avoiding collisions with other objects.
- step S70 If it is determined in the determination process of step S70 that the target position has been reached, the process proceeds to step S80. In this case, the work robot 30 has moved to a position where the part supply location is included within the reach of the arm 31.
- step S80 when CPU 36A controls arm 31, it fixes moving unit 32 to the floor surface so that moving unit 32 will not deviate from the target position even when arm 31 is operated.
- the CPU 36A may lock the rotor 32A of the moving unit 32 with a brake to fix the moving unit 32 to the floor surface.
- the CPU 36A may also fix the moving unit 32 to the floor surface by adsorbing the floor surface with a suction cup (not shown) provided on the work robot 30.
- the CPU 36A may control the arm 31 to press a suction cup attached to the tip of the arm 31 against the floor surface to fix the work robot 30 to the floor surface.
- the CPU 36A may also fix the mobile unit 32 to the floor by, for example, hooking a hook (not shown) of the work robot 30 onto a fixing bracket provided on the floor or the machine tool 4A. Furthermore, the CPU 36A may control the arm 31 so that a robot hand attached to the tip of the arm 31 grasps the fixing bracket and fixes the work robot 30 to the floor.
- the CPU 36A may combine at least two of the brakes, suction cups, hooks, and arms 31 of the rotating body 32A to fix the work robot 30 to the floor surface.
- This method of fixing the work robot 30 can prevent the work robot 30 from shifting horizontally. However, because the arm 31 performs three-dimensional movements, it is preferable to prevent the position of the work robot 30 from shifting not only horizontally but also vertically.
- the CPU 36A may control the moving unit 32 to extend the support 32B stored inside the moving unit 32 toward the floor surface until the rotating body 32A is separated from the floor surface, and the support 32B may support the working robot 30.
- the rotating body 32A is covered with an elastic body such as rubber to ensure friction with the floor surface.
- the elastic body may cause the working robot 30 to vibrate in the vertical direction.
- the vertical direction in this embodiment refers to a direction perpendicular to the floor surface.
- FIG. 5 is a diagram showing an example in which the working robot 30 is fixed to the floor surface using the support 32B.
- the absolute position of the work robot 30 is not fixed, and as long as the relative position with respect to the other work robots 30 does not change, the arm 31 can be moved to the specified position even if the work robot 30 deviates from the target position.
- the CPU 36A may therefore measure the distance to other work robots 30 using, for example, an ultrasonic sensor 33B, and control the movement unit 32 so that the distance does not change.
- the CPU 36A also obtains an image of the marker 8 by the camera 33A, and identifies other work robots 30 working in cooperation with the camera 33A by information representing the identification number contained in the marker 8. The CPU 36A may then control the movement unit 32 so that the size of the marker 8 on the photographed work robot 30 does not change.
- step S90 of FIG. 4 the CPU 36A controls the communication unit 35 to obtain status information of the other work robots 30.
- step S100 the CPU 36A acquires status information of its own work robot 30. Specifically, the CPU 36A acquires surrounding images using the camera 33A or the LiDAR 33C, and acquires position information of the arm 31.
- step S110 the CPU 36A inputs the status information of the other work robots 30 acquired in step S90 and the status information of its own work robot 30 acquired in step S100 into the control model 16, and generates control content for realizing the operation that the work robot 30 should perform under the state represented by the acquired status information.
- the CPU 36A also identifies the process being performed from the generated control content. For example, if the control content is to grasp a screw with one arm 31 and turn the screw with the remaining arm 31, the process being performed is identified as a screw tightening process. In this case, the CPU 36A attaches a screwdriver for tightening screws to the mounting part of the arm 31.
- the CPU 36A refers to a process table that predefines the correspondence between the process and the tool 39 used in that process, and controls the switching of the tool 39 to be mounted on the mounting part of the arm 31 according to the identified process.
- the process table may be stored in advance in, for example, non-volatile memory 36C.
- the CPU 36A can select the tools 39 from the multiple types of tools 39 attached to the mobile unit 32 according to the specified process.
- the work robot 30 can perform the instructed work even if a person does not place the tools required for the work around the machine tool 4A in advance.
- the tools 39 do not necessarily need to be attached to the work surface 32C of the mobile unit 32; they may be attached to the side of the mobile unit 32, for example.
- the method of identifying the work process is not limited to this, and the control model 16 may output a work process in response to the input status information.
- the control model 16 may also generate control content corresponding to the work process, such as attaching a screwdriver to the attachment part of the arm 31 in response to the input status information.
- the CPU 36A may also identify the work process being performed from the position and shape of the part from the peripheral image acquired in step S100, as well as the tip position and angle of the arm 31 of the other work robot 30 and the type of tool 39 attached. By identifying the work process from the peripheral image as well, the accuracy of identifying the work process can be improved compared to identifying the work process only from the control content generated by the control model 16.
- the status information of the other work robots 30 and the status information of the own work robot 30 are input to the control model 16 to generate control content for realizing the operation that the work robot 30 should perform.
- the status information of the other work robots 30 or the status information of the own work robot 30 may be input to the control model 16 to generate control content for the work robot 30.
- the CPU 36A controls the position of the arm 31 and the timing of the movement of the arm 31 according to the control content generated in step S110, and cooperates with the other work robots 30 to execute the instructed work.
- the CPU 36A may obtain an image of the marker 8 on the other work robot 30 by the camera 33A, and use information on the appearance of the marker 8, such as the size, position, and shape, to control the position of the arm 31 while periodically grasping the relative position of the other work robot 30 with respect to its own work robot 30, and cooperate with the other work robots 30 to execute the instructed work.
- the CPU 36A obtains the position of the arm 31 based on the position of the marker 8 using the position information of the arm 31, and moves the arm 31 to the target position while referring to the obtained relative distance between the marker 8 and the arm 31.
- the position information of the arm 31 is obtained from the position information of the work robot 30 and the drive amount of the arm 31.
- the work robot 30 can perform work that requires a work table on the work surface 32C, even if a person does not prepare a work table in the factory 40 beforehand.
- the CPU 36A controls the arm 31 to perform the specified work on the part placed on the work surface 32C.
- the work surface 32C on which the part is placed does not necessarily have to be flat, and may have uneven or curved parts, for example. For example, even if the part to be worked on is spherical, if there is a semicircular depression on the work surface 32C, the spherical part can be placed on the work surface 32C by placing the spherical part in the semicircular depression.
- the CPU 36A may control the arm 31 to grasp the part and place it on the work surface 32, as well as the arm 31 to grasp a jig for placing the part at a specified position on the work surface 32, and use the jig to place the part at the specified position on the work surface 32. Furthermore, the CPU 36A may control the arm 31 to grasp a fixture for fixing the part placed on the work surface 32, and use the fixture to fix the part to the work surface 32.
- step S130 CPU 36A determines whether the instructed work has been completed. For example, CPU 36A may determine that the instructed work has been completed if the control content generated by control model 16 indicates that the work has been completed. If the instructed work has not been completed, the process proceeds to step S90. By repeatedly executing the processes of steps S90 to S130 until it is determined in the determination process of step S130 that the instructed work has been completed, CPU 36A inputs the successively acquired status information to control model 16, controls arm 31 according to the control content output from control model 16, and performs the instructed work in cooperation with other work robots 30.
- FIG. 7 shows an example of a work robot 30 that cooperates with other work robots 30 to assemble parts.
- step S130 determines that the instructed work has been completed, the process proceeds to step S140.
- step S140 the CPU 36A releases the locking of the mobile unit 32 performed in step S80, allowing the work robot 30 to move.
- step S150 the CPU 36A determines whether there is a subsequent task instructed by the server 20. If there is a subsequent task, the process proceeds to step S10.
- the CPU 36A repeatedly executes the processes of steps S10 to S150 to move to the next location and have the work robot 30 execute the subsequent task. As a result, the work robot 30 moves to the target position where the subsequent task will be performed and executes the task at the target position until it is determined by the determination process of step S150 that there is no subsequent task.
- step S150 If it is determined in the determination process of step S150 that there is no subsequent work, the CPU 36A moves to a predetermined waiting location for the work robot 30 and ends the control process of the work robot 30 shown in FIG. 4.
- the working robot 30 can autonomously produce products using the simulation data generated by the simulation device 10, without having to create a work environment, such as a workbench or tools 39, in advance to match the work content instructed by the user to the working robot 30. Therefore, if the layout of the work space of each working robot 30 in each factory 40 and the positions of the machine tools 4A and storage shelves 4B are standardized and the working robots 30 perform instructed work in the same work space, it is possible to simultaneously produce products in standardized factories 40 located around the world, for example, by performing a simulation just once, without having to simulate the operation of the working robot 30 for each factory 40.
- the user can use the simulation device 10 to generate simulation data for factories 40 around the world, and by sending the simulation data to the server 20 of each factory 40, the same product can be produced in multiple locations in the same period, even if it is a small-volume, high-mix product. This makes it possible to quickly respond to diversifying product needs.
- the server 20 was installed in a predetermined location in the factory 40, but the location of the server 20 may be moved in conjunction with the movement of the work robot 30.
- a mobile server robot (not shown) is used in which the functions of the server 20 are mounted on the mobile unit 32.
- the server robot is an example of a mobile robot, and does not require an arm 31 because it does not perform work on parts like the work robot 30.
- a mobile server robot If a mobile server robot is introduced into the work system 1, it can move to a position where good communication with the work robot 30 can be established as the work robot 30 moves.
- a communication format in which the communication distance is limited to line-of-sight distance such as Bluetooth (registered trademark)
- the movement range of the work robot 30 is wider than if the server 20 is fixed in place.
- any one of the work robots 30 may be equipped with the functions of the server 20. In this case, the server robot is not required.
- the types of work robots 30 in the work system 1 do not necessarily have to be the same type, and may be different types. That is, in the work system 1, general-purpose work robots 30 with different numbers of arms 31 or types of sensors 33 may work together to execute instructed tasks. Furthermore, work robots 30 specialized in specific tasks, such as a work robot 30 specialized in drilling holes in parts and a work robot 30 specialized in screwing, may work together to execute instructed tasks.
- the work robot 30 is provided with a connection part 5 on the mobile unit 32 that allows it to be connected to other work robots 30.
- FIG. 8 is a diagram showing an example of a work robot 30 equipped with a coupling part 5.
- a first coupling part 5A equipped with a female connector and a second coupling part 5B equipped with a male connector.
- the first coupling part 5A and the second coupling part 5B have a structure that allows them to be interlocked, and after interlocking, a locking mechanism 6 is provided that mechanically locks the first coupling part 5A and the second coupling part 5B together so that when one work robot 30 moves, the other work robot 30 can move in conjunction with it.
- the locking mechanism 6 starts and releases the lock under the control of the CPU 36A.
- the first coupling part 5A and the second coupling part 5B are collectively referred to as the "coupling part 5".
- the coupling part 5 may also be used for power supply and electrical signal exchange.
- the connecting parts 5 also have positioning parts 7 that are machined into a shape that allows them to fit together only when the connecting parts 5 of the working robots 30 are in the correct position.
- the positioning part 7 of the second connecting part 5B has a shape that protrudes from the contact surface with the first connecting part 5A, for example, and the positioning part 7 of the first connecting part 5A has a shape that is recessed from the contact surface with the second connecting part 5B so that the protrusion of the positioning part 7 of the second connecting part 5B fits in. Therefore, the first connecting part 5A and the second connecting part 5B cannot be connected unless the protrusion of the positioning part 7 of the second connecting part 5B fits into the recess of the positioning part 7 of the first connecting part 5A.
- the connecting part 5 of the working robot 30 shown in FIG. 8 is provided with two female connectors and two male connectors, but there is no restriction on the number of female connectors and male connectors in the connecting part 5.
- the connecting part 5 may be provided in another location, such as on the torso.
- the first connecting part 5A and the second connecting part 5B may be provided, for example, on adjacent sides of the mobile unit 32, rather than on opposing sides of the mobile unit 32.
- FIG. 9 is a diagram showing an example of a state in which two work robots 30 are connected by a connection part 5.
- the CPU 36A may control the arm 31 and the moving unit 32 so that the robot performs an instructed task while connected to another work robot 30. Whether or not to connect to another work robot 30 depends on the control content output from the control model 16.
- the CPU 36A of a specific work robot 30 may receive instructions from the other connected work robots 30 through the connection part 5, and control the arm 31 and mobile unit 32 of its own work robot 30 according to the received instructions.
- the CPU 36A of a specific work robot 30 may receive measurement values of the sensor 33 acquired by the other connected work robots 30 through the connection part 5, and control the arm 31 and mobile unit 32 of its own work robot 30 according to the received measurement values of the sensor 33.
- a specific work robot 30 may receive power from the other connected work robots 30 through the connection part 5, and charge the battery 34 of its own work robot 30.
- a particular work robot 30 can receive instructions, sensor 33 measurement values, and power not only from other adjacent work robots 30 connected by the connection, but also from all work robots 30 connected through the other adjacent work robots 30.
- a particular work robot 30 designates other work robots 30 from which it will receive instructions, sensor 33 measurement values, and power from the multiple work robots 30 connected to it, and receives instructions, sensor 33 measurement values, and power from the designated other work robots 30.
- FIG. 10 shows an example of multiple work robots 30 linked together in front of a machine tool 4A.
- Each work robot 30 is linked together so that the working surfaces 32C of the moving units 32 of adjacent work robots 30 are continuous, thereby forming a production line that extends from the machine tool 4A along the direction in which the work robots 30 are linked together.
- the CPU 36A of each work robot 30 uses its arm 31 to perform instructed tasks on parts produced by the machine tool 4A, while controlling the transfer of worked parts between the arms 31 of adjacent work robots 30. This allows the parts to be transported from upstream to downstream along the connection direction of the work robots 30. Upstream along the connection direction of the work robots 30 refers to a position approaching the machine tool 4A, and downstream along the connection direction of the work robots 30 refers to a position away from the machine tool 4A. An adjacent work robot 30 that is downstream from a particular work robot 30 is also referred to as the "backward work robot 30".
- each work robot 30 Since the work surfaces 32C of each work robot 30 are continuous, a production line is constructed along the connection direction. Therefore, the CPU 36A of each work robot 30 may place parts on the work surface 32C and perform the instructed work, and then transport the parts along the connection direction of the work robots 30 by pushing the parts that have been placed on the work surface 32C downstream with the arm 31.
- each connected work robot 30 may carry out the instructed work by holding the part with its arm 31 without placing the part on the work surface 32C, and transferring the completed part in mid-air between the arm 31 of the downstream work robot 30 and the part along the connection direction of the work robots 30.
- the CPU 36A of the linked work robots 30 located at the most downstream position i.e., the work robot 30 constituting the final stage of the production line, may control the movement unit 32 to separate its own work robot 30 from the other work robots at the connection part 5 after completing work on a part, and transport the part to a specified position.
- the work robot 30 at the final stage of the production line may function as an autonomous mobile robot (AMR).
- AMR autonomous mobile robot
- FIG. 11 shows an example in which a work robot 30 located at the final stage of a production line made up of multiple work robots 30 functions as an AMR.
- the work robot 30 located at the final stage of a production line made up of multiple work robots 30 functions as an AMR, making it possible to transport parts that have been worked on to the target position while maintaining the production line.
- the target position it is possible to change the destination of each part.
- control model 16 is not necessarily an essential element for the work robot 30 to operate autonomously.
- the work robot 30 may move to a specific position in response to instructions from the server 20, transmit the acquired status information to the server 20, and generate control content for the work robot 30 from the status information received by the server 20.
- the server 20 transmits the generated control content to the work robot 30, which is the source of the status information.
- the work robot 30, which has received the control content controls the arm 31 and the moving unit 32 according to the received control content. Even while controlling the arm 31 and the moving unit 32, the work robot 30 periodically acquires status information and uses the acquired status information to correct the control content received from the server 20 and control the arm 31 and the moving unit 32.
- the CPU 36A in the work robot 30 corrects the control content and selects a movement route with a lower possibility of collision than the movement route instructed by the control content received from the server 20.
- This type of control is also an example of autonomous control by the work robot 30.
- control process shown in FIG. 4 is realized by software
- the same process as the control process flowchart may be executed by hardware. In this case, the processing speed can be increased compared to when the control process is realized by software.
- control program 37 is stored in the non-volatile memory 36C.
- storage destination of the control program 37 is not limited to the non-volatile memory 36C.
- the control program 37 can also be provided in a form recorded on a computer-readable storage medium.
- control program 37 may be provided in a form recorded on an optical disk such as a CD-ROM (Compact Disk Read Only Memory), a DVD-ROM (Digital Versatile Disk Read Only Memory), or a Blu-ray disc.
- the control program 37 may also be provided in a form recorded on a portable semiconductor memory such as a USB (Universal Serial Bus) memory or a memory card.
- USB Universal Serial Bus
- the non-volatile memory 36C, CD-ROM, DVD-ROM, Blu-ray disc, USB, and memory card are examples of non-transitory storage media.
- control unit 36 may download the control program 37 from the server 20 via the communication unit 35 and store the downloaded control program 37 in the non-volatile memory 36C.
- the server 20 downloads the control program 37 from an external device connected to the wide area network 2, such as the simulation device 10.
- control unit and the method described in the present disclosure may be realized by a special-purpose computer having a processor programmed to execute one or more functions embodied in a computer program.
- the device and the method described in the present disclosure may be realized by a special-purpose computer having a processor configured with dedicated hardware logic circuits.
- the device and the method described in the present disclosure may be realized by one or more special-purpose computers configured by a combination of a processor that executes a computer program and one or more hardware logic circuits.
- the computer program may be stored in a computer-readable non-transient tangible recording medium as instructions executed by the computer.
- At least one arm (31) for performing a directed action on an object At least one arm (31) for performing a directed action on an object;
- a moving unit (32) that moves on a floor surface;
- a control unit (36) that controls the arm and the moving unit using status information that indicates at least one of a status of another work robot and its own status so as to autonomously perform a task on the item while cooperating with the other work robot;
- (Appendix 4) 4. The working robot according to claim 3, wherein a sensor (33) is attached to at least one of the arm and the moving unit, the sensor (33) being used by the control unit for control to avoid collision with the other working robot.
- the location information is the location of a supply location (4A, 4B) of the item to be used in the product
- the control unit controls the movement unit to move to a position where the position represented by the position information is included in a reachable range of the arm, and controls the arm to perform a task on the item in cooperation with the other working robot.
- the arm is provided at its tip with a mounting portion to which a plurality of types of tools (39) can be attached and detached;
- the control unit uses the status information to identify a process being performed in a task, and performs control to switch the tool attached to the tool attachment unit in accordance with the identified process.
- a plurality of types of tools are attached to the moving unit, The working robot according to claim 8, wherein the control unit performs control to select a tool corresponding to the identified process from among a plurality of types of tools attached to the mobile unit.
- control unit 10 identifies a step of the work being performed using peripheral information indicating a surrounding situation obtained by the sensor.
- the moving unit has a work surface (32C) on which the item can be placed;
- the working robot according to any one of claims 5 to 10, wherein the control unit controls the arm to perform a task on the item placed on the work surface.
- the mobile unit includes a connecting portion (5) for connecting with the mobile unit of the other work robot, 12.
- the working robot of any one of Supplementary Note 5 to Supplementary Note 11, wherein the control unit controls the arm and the mobile unit so that the mobile unit performs work in a state coupled with the mobile unit of the other working robot.
- the moving units each have a work surface on which the article can be placed, and the moving units are connected to each other so that the work surfaces of the adjacent moving units are continuous with each other by the connection;
- the working robot according to claim 14, wherein the control unit controls the arm to move the item that has completed work to the work surface of the subsequent moving unit to which the arm is connected.
- the control unit controls a position of the arm while acquiring a relative position between the control unit and the other work robot using an image of a marker (8) provided on a surface of the other work robot, thereby performing a task on the item in cooperation with the other work robot.
- the communication unit receives, as the instruction information, via the server, from an external device (10) that simulates a task performed on the item in a virtual space that reproduces a space in which the work robot performs the task.
- the control model (16) generates control content for the arm and the mobile unit to perform the task on the item using the status information;
- the control unit controls the arm and the mobile unit in accordance with control content generated by the control model for the updated state information.
- At least one arm (31) for performing a directed action on an object At least one arm (31) for performing a directed action on an object;
- a computer At least one arm (31) for performing a directed action on an object;
- a work robot including a moving unit (32) that moves on a floor surface,
- a control program for causing a work robot to execute a process of controlling the arm and the mobile unit so as to autonomously perform work on the item in cooperation with another work robot, using status information representing at least one of the status of the other work robot and the work robot's own status.
- a non-transitory storage medium storing a control program executable by a computer to execute control processing for a working robot (30) having at least one arm (31) that performs an instructed action on an article and a moving unit (32) that moves on a floor surface,
- the non-transitory storage medium includes a step of controlling the arm and the mobile unit to autonomously perform work on the item in cooperation with the other work robots, using status information representing at least one of a status of the other work robots and the control process's own status.
- a plurality of work robots (30) each including at least one arm (31) that performs an instructed operation on an item, a mobile unit (32) that moves on a floor surface, and a control unit (36) that controls the arm and the mobile unit to autonomously perform work on the item while cooperating with the other work robots by using status information that represents at least one of the status of the other work robots (30) and its own status, and a server (20) that includes a communication unit (24) that performs data communication with each of the work robots and transmits information related to the production of the item to each of the work robots.
- a working system (1) comprising:
- the server transmits to the work robot, via the communication unit, instruction information instructing a work content to be performed on the item, and designation information for designating the work robot to perform the work content instructed by the instruction information on the item; 23.
- (Appendix 24) 24 The work system according to claim 22 or 23, wherein the server is mounted on any one of the work robots, and the server moves together with the work robot.
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Abstract
Description
<特許文献1>
特開2015-211997号公報
図4に示した作業ロボット30の制御処理では、目標位置に到着した各々の作業ロボット30が個別に連携して指示された作業を実行する例について説明したが、目標位置において各々の作業ロボット30が連結して指示された作業を実行した方がよい場合がある。
物品に対して指示された動作を行う少なくとも1本のアーム(31)と、
床面を移動する移動ユニット(32)と、
他の作業ロボットの状態及び自身の状態の少なくとも一方を表す状態情報を用いて、前記他の作業ロボットと連携しながら前記物品に対する作業を自律的に実行するように前記アーム及び前記移動ユニットを制御する制御部(36)と、
を備えた作業ロボット(30)。
前記物品の生産に関する情報を管理するサーバ(20)とデータ通信を行う通信部(35)を備え、
前記制御部は、前記物品に対する作業内容を指示した指示情報と共に前記通信部を通じて前記サーバから取得した情報である、前記物品に対して作業を実行する作業ロボットを指定した指定情報が自身を指定している場合に、前記指定情報と対応付けられた前記指示情報に基づいて前記アーム及び前記移動ユニットを制御する
付記1に記載の作業ロボット。
前記制御部は、前記通信部を通じて前記サーバから取得した位置情報によって表される位置まで移動するように、前記移動ユニットを制御する
付記2に記載の作業ロボット。
前記アーム及び前記移動ユニットの少なくとも一方に、前記制御部が前記他の作業ロボットとの衝突を回避するための制御に用いるセンサ(33)が取り付けられた
付記3に記載の作業ロボット。
前記位置情報は製品に用いる前記物品の供給場所(4A、4B)の位置であり、
前記制御部は、前記位置情報によって表される位置が前記アームの到達範囲内に含まれる位置まで移動するように前記移動ユニットを制御すると共に、前記物品に対する作業を前記他の作業ロボットと連携して実行するように前記アームを制御する
付記4に記載の作業ロボット。
前記制御部は、前記アームを制御する場合、前記他の作業ロボットとの相対位置が変化しないように前記移動ユニットを制御する
付記5に記載の作業ロボット。
前記制御部は、前記床面に沿った方向である水平方向だけでなく、前記床面と交差する方向である上下方向にも前記移動ユニットの位置がずれないように前記移動ユニットを制御する
付記6に記載の作業ロボット。
前記アームの先端に複数種類の工具(39)の脱着が可能な装着部を備え、
前記制御部は、前記状態情報を用いて作業における実行中の工程を特定し、特定した工程に応じて前記装着部に装着する工具を切り替える制御を行う
付記5~付記7の何れか1つに記載の作業ロボット。
前記移動ユニットに複数種類の工具が取り付けられており、
前記制御部は、前記移動ユニットに取り付けられている複数種類の工具の中から、特定した工程に応じた工具を選択する制御を行う
付記8に記載の作業ロボット。
前記制御部は、前記センサによって得られた周囲の状況を表す周辺情報を用いて実行中の作業の工程を特定する
付記9に記載の作業ロボット。
前記移動ユニットは前記物品が配置可能な作業面(32C)を備え、
前記制御部は、前記作業面に配置した前記物品に対して作業を行うように前記アームを制御する
付記5~付記10の何れか1つに記載の作業ロボット。
前記移動ユニットは前記他の作業ロボットにおける前記移動ユニットと連結する連結部(5)を備え、
前記制御部は、前記移動ユニットが前記他の作業ロボットにおける前記移動ユニットと連結した状態で作業を実行するように前記アーム及び前記移動ユニットを制御する
付記5~付記11の何れか1つに記載の作業ロボット。
前記制御部は、前記物品に対する作業を行いながら、前記移動ユニットの連結方向に沿って前記物品を搬送するように前記アームを制御する
付記12に記載の作業ロボット。
前記移動ユニットが、連結した前記移動ユニットの最終段を構成する場合、
前記制御部は、前記物品に対する作業を終えた後、前記移動ユニットを前記他の作業ロボットにおける前記移動ユニットから切り離し、前記物品を指定された位置まで運搬するように前記移動ユニットを制御する
付記13に記載の作業ロボット。
前記移動ユニットは前記物品が配置可能な作業面を備えると共に、連結によって隣り合う前記移動ユニットにおける前記作業面が連続するように連結され、
前記制御部は、作業を終えた前記物品を、連結した後段の前記移動ユニットにおける前記作業面まで移動させるように前記アームを制御する
付記14に記載の作業ロボット。
前記センサとして、周囲の物体の位置関係を3次元データとして取得する距離センサ(33A、33B、33C)が用いられた
付記5~付記15の何れか1つに記載の作業ロボット。
前記制御部は、前記他の作業ロボットの表面に設けられたマーカー(8)の画像を用いて、自身と前記他の作業ロボットとの相対位置を取得しながら前記アームの位置を制御することによって、前記物品に対する作業を前記他の作業ロボットと連携して実行する
付記2~付記16の何れか1つに記載の作業ロボット。
前記通信部は、作業ロボットが作業を行う空間を再現した仮想空間の下で前記物品に対する作業のシミュレーションを行う外部装置(10)から前記サーバを通じて、前記状態情報を用いて前記物品に対する作業を行うための前記アーム及び前記移動ユニットの制御内容を生成する制御モデル(16)を前記指示情報として受信し、
前記制御部は、更新される前記状態情報に対して前記制御モデルによって生成された制御内容に従って、前記アーム及び前記移動ユニットを制御する
付記2~付記17の何れか1つに記載の作業ロボット。
物品に対して指示された動作を行う少なくとも1本のアーム(31)と、
床面を移動する移動ユニット(32)と、を備えた作業ロボット(30)に対して、
他の作業ロボットの状態及び自身の状態の少なくとも一方を表す状態情報を用いて、前記他の作業ロボットと連携しながら前記物品に対する作業を自律的に実行するように前記アーム及び前記移動ユニットを制御する処理をコンピュータ(38)が実行する作業ロボットの制御方法。
コンピュータ(38)に、
物品に対して指示された動作を行う少なくとも1本のアーム(31)と、
床面を移動する移動ユニット(32)と、を備えた作業ロボット(30)に対して、
他の作業ロボットの状態及び自身の状態の少なくとも一方を表す状態情報を用いて、前記他の作業ロボットと連携しながら前記物品に対する作業を自律的に実行するように前記アーム及び前記移動ユニットを制御する処理を実行させるための作業ロボットの制御プログラム(37)。
物品に対して指示された動作を行う少なくとも1本のアーム(31)と、床面を移動する移動ユニット(32)と、を備えた作業ロボット(30)に対する制御処理を実行するようにコンピュータによって実行可能な制御プログラムを記憶した非一時的記憶媒体であって、
前記制御処理が、他の作業ロボットの状態及び自身の状態の少なくとも一方を表す状態情報を用いて、前記他の作業ロボットと連携しながら前記物品に対する作業を自律的に実行するように前記アーム及び前記移動ユニットを制御するステップ
を含む非一時的記憶媒体。
物品に対して指示された動作を行う少なくとも1本のアーム(31)と、床面を移動する移動ユニット(32)と、他の作業ロボット(30)の状態及び自身の状態の少なくとも一方を表す状態情報を用いて、前記他の作業ロボットと連携しながら前記物品に対する作業を自律的に実行するように前記アーム及び前記移動ユニットを制御する制御部(36)と、を備えた複数の作業ロボット(30)、及び前記作業ロボットの各々とデータ通信を行う通信部(24)を備え、前記物品の生産に関する情報を各々の前記作業ロボットに対して送信するサーバ(20)
を備えた作業システム(1)。
前記サーバは前記通信部を通じて、前記物品に対する作業内容を指示した指示情報、及び前記物品に対して前記指示情報で指示した作業内容を実行させる前記作業ロボットを指定する指定情報を前記作業ロボットに送信し、
前記作業ロボットは、前記指定情報が自身を指定している場合に、前記指定情報と対応付けられた前記指示情報に基づいて前記アーム及び前記移動ユニットを制御する
付記22に記載の作業システム。
前記作業ロボットの何れか1台に前記サーバが搭載され、前記サーバが前記作業ロボットと共に移動する
付記22又は付記23に記載の作業システム。
前記アームを備えずに前記移動ユニットを備えた移動ロボットに前記サーバが搭載され、前記サーバが前記移動ロボットの移動に伴い移動する
付記22又は付記23に記載の作業システム。
前記作業ロボットの各々及び前記サーバが配置された前記物品の作業拠点(40)における前記作業ロボットの作業空間が標準化され、前記物品の作業拠点が複数の場所に存在し、各々の作業拠点における前記作業ロボットが各々の作業拠点において前記物品に対する作業を同じ期間に開始する
付記22~付記25の何れか1つに記載の作業システム。
Claims (25)
- 物品に対して指示された動作を行う少なくとも1本のアーム(31)と、
床面を移動する移動ユニット(32)と、
他の作業ロボットの状態及び自身の状態の少なくとも一方を表す状態情報を用いて、前記他の作業ロボットと連携しながら前記物品に対する作業を自律的に実行するように前記アーム及び前記移動ユニットを制御する制御部(36)と、
を備えた作業ロボット(30)。 - 前記物品の生産に関する情報を管理するサーバ(20)とデータ通信を行う通信部(35)を備え、
前記制御部は、前記物品に対する作業内容を指示した指示情報と共に前記通信部を通じて前記サーバから取得した情報である、前記物品に対して作業を実行する作業ロボットを指定した指定情報が自身を指定している場合に、前記指定情報と対応付けられた前記指示情報に基づいて前記アーム及び前記移動ユニットを制御する
請求項1に記載の作業ロボット。 - 前記制御部は、前記通信部を通じて前記サーバから取得した位置情報によって表される位置まで移動するように、前記移動ユニットを制御する
請求項2に記載の作業ロボット。 - 前記アーム及び前記移動ユニットの少なくとも一方に、前記制御部が前記他の作業ロボットとの衝突を回避するための制御に用いるセンサ(33)が取り付けられた
請求項3に記載の作業ロボット。 - 前記位置情報は製品に用いる前記物品の供給場所(4A、4B)の位置であり、
前記制御部は、前記位置情報によって表される位置が前記アームの到達範囲内に含まれる位置まで移動するように前記移動ユニットを制御すると共に、前記物品に対する作業を前記他の作業ロボットと連携して実行するように前記アームを制御する
請求項4に記載の作業ロボット。 - 前記制御部は、前記アームを制御する場合、前記他の作業ロボットとの相対位置が変化しないように前記移動ユニットを制御する
請求項5に記載の作業ロボット。 - 前記制御部は、前記床面に沿った方向である水平方向だけでなく、前記床面と交差する方向である上下方向にも前記移動ユニットの位置がずれないように前記移動ユニットを制御する
請求項6に記載の作業ロボット。 - 前記アームの先端に複数種類の工具(39)の脱着が可能な装着部を備え、
前記制御部は、前記状態情報を用いて作業における実行中の工程を特定し、特定した工程に応じて前記装着部に装着する工具を切り替える制御を行う
請求項5~請求項7の何れか1項に記載の作業ロボット。 - 前記移動ユニットに複数種類の工具が取り付けられており、
前記制御部は、前記移動ユニットに取り付けられている複数種類の工具の中から、特定した工程に応じた工具を選択する制御を行う
請求項8に記載の作業ロボット。 - 前記制御部は、前記センサによって得られた周囲の状況を表す周辺情報を用いて実行中の作業の工程を特定する
請求項9に記載の作業ロボット。 - 前記移動ユニットは前記物品が配置可能な作業面(32C)を備え、
前記制御部は、前記作業面に配置した前記物品に対して作業を行うように前記アームを制御する
請求項5~請求項10の何れか1項に記載の作業ロボット。 - 前記移動ユニットは前記他の作業ロボットにおける前記移動ユニットと連結する連結部(5)を備え、
前記制御部は、前記移動ユニットが前記他の作業ロボットにおける前記移動ユニットと連結した状態で作業を実行するように前記アーム及び前記移動ユニットを制御する
請求項5~請求項11の何れか1項に記載の作業ロボット。 - 前記制御部は、前記物品に対する作業を行いながら、前記移動ユニットの連結方向に沿って前記物品を搬送するように前記アームを制御する
請求項12に記載の作業ロボット。 - 前記移動ユニットが、連結した前記移動ユニットの最終段を構成する場合、
前記制御部は、前記物品に対する作業を終えた後、前記移動ユニットを前記他の作業ロボットにおける前記移動ユニットから切り離し、前記物品を指定された位置まで運搬するように前記移動ユニットを制御する
請求項13に記載の作業ロボット。 - 前記移動ユニットは前記物品が配置可能な作業面を備えると共に、連結によって隣り合う前記移動ユニットにおける前記作業面が連続するように連結され、
前記制御部は、作業を終えた前記物品を、連結した後段の前記移動ユニットにおける前記作業面まで移動させるように前記アームを制御する
請求項14に記載の作業ロボット。 - 前記センサとして、周囲の物体の位置関係を3次元データとして取得する距離センサ(33A、33B、33C)が用いられた
請求項5~請求項15の何れか1項に記載の作業ロボット。 - 前記制御部は、前記他の作業ロボットの表面に設けられたマーカー(8)の画像を用いて、自身と前記他の作業ロボットとの相対位置を取得しながら前記アームの位置を制御することによって、前記物品に対する作業を前記他の作業ロボットと連携して実行する
請求項2~請求項16の何れか1項に記載の作業ロボット。 - 前記通信部は、作業ロボットが作業を行う空間を再現した仮想空間の下で前記物品に対する作業のシミュレーションを行う外部装置(10)から前記サーバを通じて、前記状態情報を用いて前記物品に対する作業を行うための前記アーム及び前記移動ユニットの制御内容を生成する制御モデル(16)を前記指示情報として受信し、
前記制御部は、更新される前記状態情報に対して前記制御モデルによって生成された制御内容に従って、前記アーム及び前記移動ユニットを制御する
請求項2~請求項17の何れか1項に記載の作業ロボット。 - 物品に対して指示された動作を行う少なくとも1本のアーム(31)と、
床面を移動する移動ユニット(32)と、を備えた作業ロボット(30)に対して、
他の作業ロボットの状態及び自身の状態の少なくとも一方を表す状態情報を用いて、前記他の作業ロボットと連携しながら前記物品に対する作業を自律的に実行するように前記アーム及び前記移動ユニットを制御する処理をコンピュータ(38)が実行する作業ロボットの制御方法。 - コンピュータ(38)に、
物品に対して指示された動作を行う少なくとも1本のアーム(31)と、
床面を移動する移動ユニット(32)と、を備えた作業ロボット(30)に対して、
他の作業ロボットの状態及び自身の状態の少なくとも一方を表す状態情報を用いて、前記他の作業ロボットと連携しながら前記物品に対する作業を自律的に実行するように前記アーム及び前記移動ユニットを制御する処理を実行させるための作業ロボットの制御プログラム(37)。 - 物品に対して指示された動作を行う少なくとも1本のアーム(31)と、床面を移動する移動ユニット(32)と、他の作業ロボット(30)の状態及び自身の状態の少なくとも一方を表す状態情報を用いて、前記他の作業ロボットと連携しながら前記物品に対する作業を自律的に実行するように前記アーム及び前記移動ユニットを制御する制御部(36)と、を備えた複数の作業ロボット(30)、及び前記作業ロボットの各々とデータ通信を行う通信部(24)を備え、前記物品の生産に関する情報を各々の前記作業ロボットに対して送信するサーバ(20)
を備えた作業システム(1)。 - 前記サーバは前記通信部を通じて、前記物品に対する作業内容を指示した指示情報、及び前記物品に対して前記指示情報で指示した作業内容を実行させる前記作業ロボットを指定する指定情報を前記作業ロボットに送信し、
前記作業ロボットは、前記指定情報が自身を指定している場合に、前記指定情報と対応付けられた前記指示情報に基づいて前記アーム及び前記移動ユニットを制御する
請求項21に記載の作業システム。 - 前記作業ロボットの何れか1台に前記サーバが搭載され、前記サーバが前記作業ロボットと共に移動する
請求項21又は請求項22に記載の作業システム。 - 前記アームを備えずに前記移動ユニットを備えた移動ロボットに前記サーバが搭載され、前記サーバが前記移動ロボットの移動に伴い移動する
請求項21又は請求項22に記載の作業システム。 - 前記作業ロボットの各々及び前記サーバが配置された前記物品の作業拠点(40)における前記作業ロボットの作業空間が標準化され、前記物品の作業拠点が複数の場所に存在し、各々の作業拠点における前記作業ロボットが各々の作業拠点において前記物品に対する作業を同じ期間に開始する
請求項21~請求項24の何れか1項に記載の作業システム。
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| JP2025527490A JPWO2024262136A1 (ja) | 2023-06-19 | 2024-04-05 | |
| KR1020257042456A KR20260013215A (ko) | 2023-06-19 | 2024-04-05 | 작업 로봇, 작업 로봇의 제어 방법, 작업 로봇의 제어 프로그램 제품 및 작업 시스템 |
| EP24825546.5A EP4729244A1 (en) | 2023-06-19 | 2024-04-05 | Work robot, control method for work robot, control program for work robot, and work system |
| CN202480040510.3A CN121358569A (zh) | 2023-06-19 | 2024-04-05 | 作业机器人、作业机器人的控制方法、作业机器人的控制程序以及作业系统 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008229738A (ja) * | 2007-03-16 | 2008-10-02 | Seiko Epson Corp | 生産システム及び生産システム用汎用セル |
| JP2012011501A (ja) * | 2010-06-30 | 2012-01-19 | Canon Inc | 生産システム |
| JP2015211997A (ja) | 2014-05-07 | 2015-11-26 | 川田工業株式会社 | 作業システム |
| US20200242544A1 (en) * | 2013-07-25 | 2020-07-30 | IAM Robotics, LLC | System and method for piece picking or put-away with a mobile manipulation robot |
| JP2021084178A (ja) * | 2019-11-28 | 2021-06-03 | 川崎重工業株式会社 | ロボットシステムおよびロボットセル |
| JP2021094645A (ja) * | 2019-12-17 | 2021-06-24 | 株式会社安川電機 | 生産システム、生産方法、及びプログラム |
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2024
- 2024-04-05 WO PCT/JP2024/014142 patent/WO2024262136A1/ja not_active Ceased
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- 2024-04-05 KR KR1020257042456A patent/KR20260013215A/ko active Pending
- 2024-04-05 CN CN202480040510.3A patent/CN121358569A/zh active Pending
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008229738A (ja) * | 2007-03-16 | 2008-10-02 | Seiko Epson Corp | 生産システム及び生産システム用汎用セル |
| JP2012011501A (ja) * | 2010-06-30 | 2012-01-19 | Canon Inc | 生産システム |
| US20200242544A1 (en) * | 2013-07-25 | 2020-07-30 | IAM Robotics, LLC | System and method for piece picking or put-away with a mobile manipulation robot |
| JP2015211997A (ja) | 2014-05-07 | 2015-11-26 | 川田工業株式会社 | 作業システム |
| JP2021084178A (ja) * | 2019-11-28 | 2021-06-03 | 川崎重工業株式会社 | ロボットシステムおよびロボットセル |
| JP2021094645A (ja) * | 2019-12-17 | 2021-06-24 | 株式会社安川電機 | 生産システム、生産方法、及びプログラム |
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| JPWO2024262136A1 (ja) | 2024-12-26 |
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