G05B19/44

Anomaly detection in a pneumatic system

An error detection and localisation in a pneumatic system and in particular an error detection module includes a read-in interface for reading-in digital signals from the automation plant, a first processor unit designed to execute a detection algorithm for calculating an anomaly score for the automation plant on the basis of the set of read-in signals, a second processor unit which is designed—in the event that the anomaly score calculated with the first processor unit indicates an anomaly—to perform a machine localisation method for localising the error, wherein the machine localisation method has been trained in a training phase in order to calculate and as a result provide, on the basis of a detected circuit diagram of the automation plant with respect to the calculated anomaly score, probabilities of possible causes of error in relation to individual components of the automation plant.

DOUBLE CORRECTOR FOR ASYMMETRICAL MECHANISM COMPENSATION

The invention concerns a method for controlling a mechanism (10) displaying asymmetrical behaviour, the mechanism (10) comprising a first operating direction (F+) and a second operating direction (F−), the control method making it possible to generate, using a control module (24) of a computer (20), a control signal (x_com) from a setpoint signal (x_cons), in which—when the setpoint signal (x_cons) indicates that the mechanism (10) should be operated in the first direction (F+), the control module (24) applies a first corrector (100) to the setpoint signal (x_cons) in order to generate a control signal (x_com),—when the setpoint signal (x_cons) indicates that the mechanism (10) should be operated in the second direction (F−), the control module (24) applies a second corrector (100) to the setpoint signal (x_cons) in order to generate a control signal (x_com), and in which the first and second correctors (100, 200) have different parameters (Kp1, Kp2, Ti1, Ti2), in order to compensate for the asymmetrical behaviour of the mechanism (10).

Component mounting machine for preventing release fail of a component

A component mounting machine which deals with a component remaining on a nozzle of a mounting head includes a board conveyance device conveying a board to a predetermined position, a component supply device accommodating multiple components therein, a component mounting device on which a mounting head which picks up and holds a component by vacuum pumping of a suction nozzle is installed and which mounts a component which is taken out from the component supply device onto a board which is conveyed by the board conveyance device, and a control device controlling each of the devices. The component mounting device performs lowering of the component, releasing the component with respect to the suction nozzle of the mounting head, a first lifting of the component to a middle height, a component pickup performed at the height of the first lifting, and a second lifting after the component pickup.

Component mounting machine for preventing release fail of a component

A component mounting machine which deals with a component remaining on a nozzle of a mounting head includes a board conveyance device conveying a board to a predetermined position, a component supply device accommodating multiple components therein, a component mounting device on which a mounting head which picks up and holds a component by vacuum pumping of a suction nozzle is installed and which mounts a component which is taken out from the component supply device onto a board which is conveyed by the board conveyance device, and a control device controlling each of the devices. The component mounting device performs lowering of the component, releasing the component with respect to the suction nozzle of the mounting head, a first lifting of the component to a middle height, a component pickup performed at the height of the first lifting, and a second lifting after the component pickup.

Method for determining amplitude of stick-slip on a valve assembly and implementation thereof
10935160 · 2021-03-02 · ·

A method for processing operating data (e.g., position, setpoint, and pressure) for a valve assembly. The method is configured to associate characteristics of operation for the valve assembly with a root cause and/or a contributing factor. In one embodiment, the method can assign a first amplitude with a value that quantifies movement or jump of the valve stem that results from stick-slip on the valve assembly. The method can also assign a second amplitude with a value that quantifies a change in the data for the setpoint. The method can further ascertain the relationship or position of the first amplitude relative to the second amplitude, or vice versa. The method can use the relationship between the first amplitude and the second amplitude to indicate the root cause of the operation of the valve assembly.

Method for determining amplitude of stick-slip on a valve assembly and implementation thereof
10935160 · 2021-03-02 · ·

A method for processing operating data (e.g., position, setpoint, and pressure) for a valve assembly. The method is configured to associate characteristics of operation for the valve assembly with a root cause and/or a contributing factor. In one embodiment, the method can assign a first amplitude with a value that quantifies movement or jump of the valve stem that results from stick-slip on the valve assembly. The method can also assign a second amplitude with a value that quantifies a change in the data for the setpoint. The method can further ascertain the relationship or position of the first amplitude relative to the second amplitude, or vice versa. The method can use the relationship between the first amplitude and the second amplitude to indicate the root cause of the operation of the valve assembly.

ANOMALY DETECTION IN A PNEUMATIC SYSTEM
20200310405 · 2020-10-01 ·

An error detection and localisation in a pneumatic system and in particular an error detection module includes a read-in interface for reading-in digital signals from the automation plant, a first processor unit designed to execute a detection algorithm for calculating an anomaly score for the automation plant on the basis of the set of read-in signals, a second processor unit which is designedin the event that the anomaly score calculated with the first processor unit indicates an anomalyto perform a machine localisation method for localising the error, wherein the machine localisation method has been trained in a training phase in order to calculate and as a result provide, on the basis of a detected circuit diagram of the automation plant with respect to the calculated anomaly score, probabilities of possible causes of error in relation to individual components of the automation plant.

TRAJECTORY PLANNING UNIT, VALVE ARRANGEMENT AND METHOD
20200306966 · 2020-10-01 ·

A trajectory planning unit for providing a trajectory as a command variable for a control unit for position control of an actuator member of an actuator, wherein the trajectory planning unit is adapted to provide the trajectory on the basis of a target position curve and to limit the trajectory according to at least one limit value comprising a velocity limit value, an acceleration limit value, a braking acceleration limit value and/or a jerk limit value. The trajectory planning unit is adapted to provide the trajectory according to at least one specification value which can be specified, the specification value including an initial velocity value, a final velocity value, an initial acceleration value and/or a final acceleration value.

COMPONENT MOUNTING MACHINE FOR PREVENTING RELEASE FAIL OF A COMPONENT

A component mounting machine which deals with a component remaining on a nozzle of a mounting head includes a board conveyance device conveying a board to a predetermined position, a component supply device accommodating multiple components therein, a component mounting device on which a mounting head which picks up and holds a component by vacuum pumping of a suction nozzle is installed and which mounts a component which is taken out from the component supply device onto a board which is conveyed by the board conveyance device, and a control device controlling each of the devices. The component mounting device performs lowering of the component, releasing the component with respect to the suction nozzle of the mounting head, a first lifting of the component to a middle height, a component pickup performed at the height of the first lifting, and a second lifting after the component pickup.

Valve positioner and user interface for valve positioner
10698525 · 2020-06-30 · ·

A smart valve positioner is provided with a local user interface with non-mechanical touch buttons and a display inside a positioner housing under a housing cover for locally operating the valve positioner. The touch buttons are user-operable by touching the touch buttons when the housing cover is open. The housing cover is arranged to make the touch buttons user-operable from outside the housing by touching the housing cover, when the housing cover is closed.