Rockwell Automation Technologies Incorporated

Allen-bradley Company, LLC

Rockwell Automation Safety Ag

Rockwell Automation Switzerland Gmbh

George E Rollins

Suresh Ramanujan Nair

James Edward Dogul

Derek William Jones

Richard Galera

Ray Carlisle Delcher

George Karl Schuster

Prachi S Kulkarni

Weihua Chen

Diana A Sufariu

Anthony Gerard Gibart

Carl Meinherz

Martin Hardegger

Danilo Dorizzi

Christopher Walther

George K Schuster

A light curtain controller is provided that serially tunes or optimizes the operating margin of each channel during an initialization sequence. The controller measures and adjusts the operating margin for each emitter-receiver pair individually, such that the margin for each channel satisfies a defined optimization criterion. In this way, the light curtain's unique environmental and installation conditions are taken into account when tuning each channel. By individually tuning each emitter-receiver pair, the operating margin of each channel is set sufficiently high to ensure accurate object detection, while excessive margin is limited to prevent signal processing errors, such as those associated with adjacent-channel signal bleed-through, susceptibility to internal and external noise, etc.

Sensitivity optimization of individual light curtain channels

The present invention relates to a transceiver element for an optical unit of a photoelectric barrier to such a photoelectric barrier. In particular, a transceiver element comprises at least one optical sender, at least one optical receiver and a control element, wherein said control element comprises a driver unit for driving said at least one optical sender to emit radiation and at least one receiver unit for sensing and evaluating electrical signals generated by said optical receiver.

Transceiver element for an optical unit of a photoelectric barrier and photoelectric light curtain

An inductive proximity sensor is disclosed. The proximity sensor includes a source circuit with an inductive element configured to deliver energy to a resonator when a source current is changed. In various embodiments, the source current is provided a step current source. In various embodiments, the source current is provided by constant current source coupled to the inductive element by a switch. Apparatus and methods for operating the inductive proximity sensor are disclosed.

Apparatus and methods for proximity sensing circuitry

System(s) and method(s) that facilitate utilizing biometric sensors (e.g., fingerprint, hand scan, voice recognition . . . ) in manufacturing systems in order to maintain accurate safety audit trails. A safety audit system, utilizing a biometric sensing device, facilitates determining if a user is allowed to access and change the configuration of the manufacturing system. Once a user is allowed to change the configuration (e.g., programmable electronics, tooling changes, software updates, etc.) the changes are automatically recorded in a safety audit database. Automatic storage of configuration changes mitigates manual recording of changes thereby enhancing the safety audit data often necessary to meet safety standards for manufacturing systems.

Audit trail in a programmable safety instrumented system via biometric signature(s)

An inductive proximity sensor is disclosed. The proximity sensor includes a housing having at least a first pair of inductive coils disposed within the housing. One of the first pair of inductive coils is opposite in polarity from another one of the first pair of inductive coils. The sensor optionally includes a second set of inductive coils, having opposite polarity.

Apparatus and methods for an inductive proximity sensor

The claimed subject matter provides a system and/or a method that facilitates providing a safety mechanism associated with a protective zone in an industrial automation environment. An radio frequency identification (RFID) component can receive data from an RFID tag to identify a location. A safety component can employ a safe mode to a device based at least in part upon the location to employ a protected zone in proximity with the device.

RFID/biometric area protection

Embodiments include apparatus, methods, and system including an apparatus comprising a photo receiver operable to detect a stream of light pulses transmitted from a photo transmitter paired with the photo receiver, wherein a frequency of the stream of light pulses has a harmonic relationship with a frequency of at least one other stream of light pulses transmitted by a photo transmitter not paired to the photo receiver, wherein the stream of light pulses from the transmitter paired with the photo receiver is detectable by the photo receiver even when the photo receiver is receiving one or more light pulses from the at least one other stream of light pulses.

Non-interfering transmitted-beam pairs

An inductive proximity sensor is disclosed. The proximity sensor includes a resonator with a bifurcated inductance coupled to a plurality of transimpedance amplifiers. A portion of the resonator is configured to generate eddy currents in a target containing metal. In various embodiments, the transimpedance amplifiers provide signals associated with eddy currents to a synchronous detector. Apparatus and methods for operating the inductive proximity sensor are disclosed.

The claimed subject matter provides industrial automation systems and/or methods that configure available redundancy. An interface component can obtain input data. Additionally, an optimization component can generate a voting configuration that allocates available redundancy to provide an optimized combination of safety and availability based at least in part on the input data.

Optimizing availability and safety by reconfiguring and auto-adjusting redundancy

An industrial device comprises a light emitter and a detector that is optically coupled to the emitter. A first deformable mirror/lens is optically coupled to the emitter, the first deformable mirror/lens is dynamically shaped to facilitate receipt of light at the detector. For example, the deformable mirror/lens can be associated with one or more actuators that causes the mirror/lens to be shaped in a desirable manner.

Industrial device with adaptive optics

The claimed subject matter provides a system and/or a method that facilitates initiating a sequence within an industrial automation environment. A radio frequency identification (RFID) component can receive data from an RFID tag. An event control component can invoke at least one event related to a device in a designated control sequence.

Electronic token to provide sequential event control and monitoring

Apparatus and methods for operating an area scanner having a motorless scanning mechanism provide for enhanced operation of the area scanner. In an embodiment, an area scanner includes a micro-optical-electromechanical device to direct the scan of light from an optical source over a desired area.

Apparatus and methods for an area scanner having an adjustable mirror and a scan mirror with scan operable to 360 degrees

The claimed subject matter provides industrial automation systems and/or methods that visualize availability and safety levels. An optimization component can generate a voting configuration that provides an optimized combination of a safety level and an availability level based upon available redundancy. Additionally, a graphical user interface can present a visualization of the safety level and the availability level.

Safety versus availability graphical user interface

Systems and methods of risk management that employ a risk assessment component to continuously update risk estimation associated with a machine of a manufacturing system. A data input component is provided for receiving a measured parameter associated with a current machine condition. A comparison is performed between the measured parameter from current machine condition with predetermined risk estimations/assessment parameters to determine whether the current machine condition is within the range of acceptable operator risk conditions.

Data acquisition and processing system for risk assessment

The claimed subject matter provides industrial automation systems and/or methods that evaluate a proximity to potential hazards. A plurality of sensors can provide redundant detected data. Additionally, a proximity evaluation component can evaluate the detected data, determine a location of at least one of a person and an object, and identify a distance from the location to one or more hazardous zones in a monitored region.

Growing community of inventors

Chelmsford, MA, United States of America

George E Rollins