Robot system and method for controlling a robot system

    公开(公告)号:US10035267B2

    公开(公告)日:2018-07-31

    申请号:US15235141

    申请日:2016-08-12

    Applicant: ABB Schweiz AG

    Abstract: A robot system, and method for controlling it, for collaborative robot applications has a movable robot arm and a controller, wherein the controller is provided to control the movement of the distal end of the robot arm along a movement path according to at least a sequence of coordinate data and respective commands of a robot program and wherein the controller is provided to determine exact movement speed and course of the movement path between consecutive coordinates according to a set of parameters. At least two alternatively selectable sets of parameters are provided which both are related to a respective individual comfort level of a respective collaborative human worker.

    SAFE OPERATION OF A ROBOTIC SYSTEM

    公开(公告)号:US20210205994A1

    公开(公告)日:2021-07-08

    申请号:US17211895

    申请日:2021-03-25

    Applicant: ABB Schweiz AG

    Abstract: A robotic system includes: at least one robot; a robot controller for controlling an operation of the at least one robot; a robot sensor system with at least one robot sensor, the robot sensor system being coupled to the robot controller to detect a presence of an object in a robot safety zone, which robot safety zone at least partially surrounds the at least one robot; and at least one automated vehicle for supplying the at least one robot. The at least one vehicle has at least one vehicle sensor for detecting a presence of an object in a vehicle safety zone, which vehicle safety zone at least partially surrounds the at least one vehicle. The robot controller determines an entry of the at least one vehicle into the robot safety zone. The robot controller adjusts at least a part of the robot safety zone.

    Distance measuring system and method, and robot system using same

    公开(公告)号:US10788576B2

    公开(公告)日:2020-09-29

    申请号:US16690162

    申请日:2019-11-21

    Applicant: ABB Schweiz AG

    Abstract: A distance measuring system includes: at least one emitter, which emits a frequency-variable scanning signal; at least one receiver; and an analysis unit for computing a distance to an object reflecting the scanning signal on the basis of a difference between the frequencies of the emitted and the received scanning signal. The rate of change of the frequency of the scanning signal in a first operating mode of the distance measuring system has a first finite value. The rate of change of the frequency in a second operating mode has a second finite value. The analysis unit is configured to compute a first distance on the basis of a frequency difference ascertained in the first operating mode, to compute a second distance on the basis of a frequency difference ascertained in the second operating mode, and to evaluate the correspondence between first and second computed distance.

    METHOD OF DETERMINING A JOINT TORQUE IN A JOINT OF AN ARTICULATED INDUSTRIAL ROBOT

    公开(公告)号:US20200122337A1

    公开(公告)日:2020-04-23

    申请号:US16720019

    申请日:2019-12-19

    Applicant: ABB Schweiz AG

    Abstract: A method of determining a joint torque in a joint of an articulated industrial robot, the robot having a first arm and a second arm which are coupled to each other by the joint and which are movable relative to each other by an electric drive unit coupled to the first and second arm, includes: controlling the electric drive unit by an electronic control device; assigning a measuring device to the electric drive unit, the measuring device measuring an electric current supplied to the drive unit; determining an actual value of the torque which is applied to the second arm from the measured electric current; and comparing, using the electronic control device, the determined actual torque value with a predetermined desired torque value for the joint.

    Safe operation of a robotic system

    公开(公告)号:US11992954B2

    公开(公告)日:2024-05-28

    申请号:US17211895

    申请日:2021-03-25

    Applicant: ABB Schweiz AG

    Abstract: A robotic system includes: at least one robot; a robot controller for controlling an operation of the at least one robot; a robot sensor system with at least one robot sensor, the robot sensor system being coupled to the robot controller to detect a presence of an object in a robot safety zone, which robot safety zone at least partially surrounds the at least one robot; and at least one automated vehicle for supplying the at least one robot. The at least one vehicle has at least one vehicle sensor for detecting a presence of an object in a vehicle safety zone, which vehicle safety zone at least partially surrounds the at least one vehicle. The robot controller determines an entry of the at least one vehicle into the robot safety zone. The robot controller adjusts at least a part of the robot safety zone.

    ROBOT SYSTEM AND OPERATION METHOD
    7.
    发明申请

    公开(公告)号:US20200376666A1

    公开(公告)日:2020-12-03

    申请号:US16999084

    申请日:2020-08-21

    Applicant: ABB Schweiz AG

    Abstract: A robot system includes: a robot arm having a plurality of links and joints by which one of the links is connected to another; sensors for determining, for any one of the joints, an angular velocity of the joint and a torque to which the joint is subject; a neural network connected to the sensors, the neural network receiving therefrom angular velocity and torque data, the neural network being trained to distinguish, based on the angular velocity and torque data, between a normal operation condition of the robot arm, a condition in which the robot arm collides with an outside object, and a condition where a person deliberately interacts with the robot arm; and a controller for controlling motion of the robot arm, a mode of operation of which is variable depending on an operation condition signal output by the neural network. One operation mode is a leadthrough mode.

    ROBOT CONTROL METHOD
    8.
    发明申请

    公开(公告)号:US20200164516A1

    公开(公告)日:2020-05-28

    申请号:US16777918

    申请日:2020-01-31

    Applicant: ABB SCHWEIZ AG

    Abstract: A method for controlling a robot includes the steps of: deciding whether there is a non-permanent object in a vicinity of the robot; if there is a non-permanent object, deciding whether the object qualifies for extended protection or not; and defining a safety zone around the object which the robot must not enter or in which a maximum allowed speed of the robot is less than outside the safety zone. The safety zone extends to a greater distance from the object if the object qualifies for extended protection than if it does not.

    Robotic system comprising a movable robot

    公开(公告)号:US12214508B2

    公开(公告)日:2025-02-04

    申请号:US17702141

    申请日:2022-03-23

    Applicant: ABB Schweiz AG

    Abstract: A robotic system and method includes at least one robot actively or passively mobile between at least first and second locations, and a first safety configuration being defined at least for said first location. A first data carrier associated to the first safety configuration is located in said first location, and the robot comprises a reader adapted to read the first data carrier when the robot is in said first location.

    SAFETY NETWORK FOR DEVICES IN INTERMITTENT USE

    公开(公告)号:US20240231301A1

    公开(公告)日:2024-07-11

    申请号:US18557923

    申请日:2021-05-04

    Applicant: ABB Schweiz AG

    CPC classification number: G05B19/0428 G05B2219/14012

    Abstract: A safety network for supporting one or more devices in intermittent use, the safety network being susceptible of verification and/or validation as a safety loop and including a safety controller configured to



    assess the integrity of the safety network, and
    monitor safety sensors and cause safety actuators to respond to any detected safety events in accordance with safety rules.




    The safety network implements safety representatives, each configured to



    maintain a virtual representation of an associated device in intermittent use, including at least one virtual safety sensor and/or virtual safety actuator,
    make the virtual representation available for integrity assessment and monitoring by the safety controller, and
    perform wireless data synchronization between the virtual representation and the associated device.




    The virtual representation further includes an activation indicator, which determines a safety rule for the safety controller's monitoring and/or for the safety representative's data synchronization.

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