Failure Protection Or Reliability Patents (Class 700/21)
  • Patent number: 10310463
    Abstract: Systems, devices, and methods for building system controller configuration propagation are described herein. One system includes a first plant controller configured to control a plurality of controllers of a building system on a first channel, wherein one of the plurality of controllers on the first channel is a master controller, and a subset of the plurality of controllers on the first channel are follower controllers of the master controller, a second plant controller configured to control a plurality of controllers of the building system on a second channel, wherein a subset of the plurality of controllers on the second channel are follower controllers of the master controller, and a computing device in communication with the first plant controller and the second plant controller and configured to receive an indication of a parameter modification made to the master controller and communicate the parameter modification to the second plant controller.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: June 4, 2019
    Assignee: Honeywell International Inc.
    Inventors: Jayaprakash Meruva, Manish Gupta, Andrew David Halford, Cary Leen, Nagasree Poluri
  • Patent number: 10257560
    Abstract: An information processing apparatus and server apparatus are disclosed. In one example, the information processing apparatus is configured to display content on a first display and transmit an instruction to display the content, which is being displayed on the first display, on a second display of a first external device. This instruction causes a displaying of the content at a specified playback start point on the second display.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: April 9, 2019
    Assignee: Sony Corporation
    Inventors: Hideki Sato, Junichi Nakamura, Naoki Yuasa, Shuichi Otsu, Hiroki Hashi, Mie Namai
  • Patent number: 10156836
    Abstract: The PLC according to the present disclosure includes a control module configured to perform a control operation according to a preset program; a first communication module configured to transmit a control command from the control module to at least one of first external devices; and a second communication module configured to transmit the control command from the control module to at least one of second external devices, wherein the first and second communication modules transmit external data to the control module via a data transmission cable which is shared with each other, and check interrupt signals therebetween to alternately transmit the external data to the control module, respectively.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: December 18, 2018
    Assignee: LSIS CO., LTD.
    Inventor: Hwa-Soo Ryu
  • Patent number: 10078314
    Abstract: Method of providing functions within an industrial automation system and an industrial automation system thereof. Functions of the automation system are made available by web applications that are combined by the client during control program execution to form interlinked web applications. The functions are provided on a user interface of the client. The web applications are provided by a standard application programming interface that comprises a cross-component application programming interface for initializing and unloading application components and a component-specific application programming interface for event handling and providing component functions. Component instances are linked by an application programming interface for stipulating interactions between application components.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: September 18, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: Roland Eckl, Andreas Henrich, Harald Herberth
  • Patent number: 10031502
    Abstract: An industrial safety controller comprises a non-volatile memory configured for storing an industrial control program and at least one processing unit. The industrial safety controller, which may be a safety relay, further comprises connector means configured to communicatively couple the safety controller with an expansion module. The safety controller is configured to receive an input and/or provide an output via an I/O expansion module that is coupled to the safety controller utilizing the connector means. The industrial safety controller may comprise an expansion module bay and the connector means may comprise a bay connector.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: July 24, 2018
    Assignee: Rockwell Automation Germany GMBH & Co. KG
    Inventors: Bradley Alan Prosak, Thomas Helpenstein, Rudolf Papenbreer, Mussa Tohidi Khaniki, Norbert Machuletz, Oliver Heckel
  • Patent number: 10013553
    Abstract: There is provided a method of protecting the execution of a software application, the method performed by a plurality of processes comprising a process for executing the software application and a plurality of protection processes, wherein each protection process in the plurality of protection processes is configured to: monitor a process state of at least one other process in the plurality of processes to determine whether said process state corresponds to a predetermined process state; and perform a predetermined action in response to a determination that said process state corresponds to the predetermined process state; wherein the plurality of protection processes are configured such that a process state of the process for executing the software application is monitored by at least one protection process and a process state of each protection process is monitored by at least one other protection process in the plurality of protection processes.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: July 3, 2018
    Assignee: IRDETO B.V.
    Inventors: Yunpeng Li, Chunming Qie
  • Patent number: 9915925
    Abstract: A system and method for verifying the response capabilities of a control effector include processing, in a test module, at least command data and sensor data associated with the control effector to generate control effector health data representative of control effector health. The control effector health data are processed in a reasoner to selectively indict and clear one or more faults, determine a failure is uncertain based on the one or more indicted faults, determine one or more test excitation signals to supply to the control effector to verify whether the uncertain failure is present or absent, and supply the one or more test excitation signals to a controller that is in operable communication with the control effector.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: March 13, 2018
    Inventors: Andrew Peter Vechart, Darryl Busch, Dale Frederick Enns
  • Patent number: 9842016
    Abstract: In one aspect, multiple data path error collection is provided in a storage management system. In one embodiment, an error condition in a main data path between the storage controller and at least one of a host and a storage unit is detected, and in response, a sequence of error data collection operations to collect error data through a main path is initiated. In response to a failure to collect error data at a level of the sequential error data collection operations, error data is collected through an alternate data path as a function of the error data collection level at which the failure occurred. Other aspects are described.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: December 12, 2017
    Inventors: Gary W. Batchelor, Matthew D. Carson, Enrique Q. Garcia, Larry Juarez, Jay T. Kirch, Tony Leung, Trung N. Nguyen, Brian A. Rinaldi, Todd C. Sorenson
  • Patent number: 9780680
    Abstract: A frequency-controlled power converter includes a power stage frequency response characterization circuit. A PWM input control value F_OL_CTL generates a PWM output control signal to drive the converter to a selected output voltage. F_OL_CTL is added to each of a set of periodic, incrementally time-sequenced discrete frequency deviation control values F_DEV(t) having a periodicity of F_RESP corresponding to a frequency at which a response of the power stage is to be measured. A resulting set of perturbed PWM input control values F_CTL_PTB(t) frequency-modulate the PWM output control signal and perturb the converter output voltage. A corresponding set of perturbed converter output voltage samples V_OUT_PTB(t) is cross-correlated to the set of F_CTL_PTB(t) to generate correlation components of V_OUT_PTB(t) and F_CTL_PTB(t).
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: October 3, 2017
    Inventors: Manish Bhardwaj, Sam Gnana Sabapathy
  • Patent number: 9709963
    Abstract: Safety-related functions in automation systems for controlling industrial production processes are achieved by providing a simple and safe parameterization of the safety-related apparatuses of such an automation plant. After a start signal sent by the communication master is received, all further activities for parameterization are controlled by a logic module.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 18, 2017
    Inventor: Joachim Schmidt
  • Patent number: 9645555
    Abstract: A safety system includes a safety unit and at least one safety related participant which comprises a protective device and a first and a second interruptible signal transmission path which can be interrupted together on the occurrence of a non-secure state of the protective device. The safety system includes at least one test signal path which runs through the safety related participant to a safety input of the safety unit starting from an output of the safety unit and comprises at least one of the first and the second interruptible signal transmission paths. The safety related participant comprises an interruption switch arranged in the test signal path and an evaluation unit which is connected to the first signal transmission path and/or to a first switching signal output of the protective device and to the second signal transmission path and/or to a second switching signal output of the protective device.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: May 9, 2017
    Assignee: SICK AG
    Inventor: Franz Josef Dold
  • Patent number: 9599974
    Abstract: Systems, methods, and apparatuses are provided for a “path affinity” engine that may work in the background to discover route information needed to connect industrial control components to control level data using “tag names.” Connections may be established dynamically through the path affinity engine, thereby simplifying the commissioning process and allowing connections to be made on an as needed basis. Accordingly, discovery of tag locations at runtime may be permitted, and implementing hardware changes in industrial control environments may be greatly simplified.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: March 21, 2017
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Francisco P. Maturana, Pavel Tichy
  • Patent number: 9514001
    Abstract: According to an aspect of the present invention, provided is an information processing device including a first storage unit and a processor. The processor sets, in an external device, device identification information of the information processing device. The processor stores a duplicate copy of data stored in the first storage unit in a second storage unit included in the external device. The processor invalidates, in response to an instruction for invalidating data, the data stored in the first storage unit. The processor restores the duplicate copy stored in the second storage unit on the first storage unit at a time of start-up of the information processing device after the invalidation when the external device is connected to the information processing device and the device identification information is set in the external device.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: December 6, 2016
    Inventors: Zhaogong Guo, Koichi Yasaki
  • Patent number: 9501372
    Abstract: The present invention provides a cluster system that promptly stops access to a shared disk upon occurrence of abnormality. The cluster system is a cluster system where an active system server and a standby system server operate utilizing a shared disk. Each server includes: a disk input/output unit that accesses the shared disk by using data that is input and output via a predetermined bus; a fault detecting unit that, when a fault occurs in the active system server, detects the fault; and a bus closing unit that, when the fault detecting unit detects the fault, closes the bus by issuing an uncorrectable fault generation request to cause generation of an uncorrectable fault on the bus.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: November 22, 2016
    Inventor: Daisuke Ageishi
  • Patent number: 9412080
    Abstract: A system handles conditional dependencies between alternative product segments of a production process modeled within a manufacturing execution system (MES). The system includes data processing units connected to a network and production components. The data processing units run MES software for controlling and monitoring the process. The MES software includes a production modeler embedding time-sensitive dependency information in each product segment to define the start of execution in relation to another product segment. The production modeler embeds in each product segment programmed for alternative execution conditional dependency information and a sequence attribute about the order of evaluation of the specified condition.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: August 9, 2016
    Assignee: Siemens Aktiengesellschaft
    Inventors: Alessandro Raviola, Elena Reggio
  • Patent number: 9373253
    Abstract: A safety controller includes a first interrupt signal output unit outputting a first interrupt signal in a cycle synchronous with that of a first carrier signal defining a control cycle of a control target; a second interrupt signal output unit outputting a second interrupt signal in a cycle synchronous with that of a second carrier signal defining a control cycle of the control target, the first and second carrier signals having the same cycle and a predetermined phase difference; and a control unit executing tasks and controlling the control target by switching and scheduling time partitions according to outputs of the first and second interrupt signals from the first and second interrupt signal output units. The control unit stops controlling the control target upon detecting, as an abnormality related to the first and second interrupt signals, that the first and second interrupt signals are not output in a predetermined order.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: June 21, 2016
    Inventors: Tetsuya Taira, Hiroshi Bitoh
  • Patent number: 9252967
    Abstract: A control circuit operably couples to a plurality of home-automation edge-component interfaces. This control circuit is configured to compatibly interact with a plurality of home-automation edge components where at least some of the plurality of home-automation edge components are operationally incompatible with one another.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: February 2, 2016
    Assignee: Sony Corporation
    Inventors: Adam H. Li, Aixin Liu, Djung Nguyen
  • Patent number: 9218041
    Abstract: An apparatus includes logic to control heat generation in a device. The device to operate at least in one of a first state and a second state, wherein the device to consume more power in the first state than in the second state. The device to connect to a network at least for a portion of time while in the second state. The logic to select a plurality of thermal control solutions to decrease the generation of heat in the device in the second state, the selected thermal control solution to be performed while the device is in the second state to reduce the generated heat to below a predetermined level.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: December 22, 2015
    Assignee: Intel Corporation
    Inventors: Biswajit Sur, Thomas E. Walsh, Ajay G. Gupta, Brian C. Kluge, Kristoffer D. Fleming
  • Patent number: 9122615
    Abstract: Data cache egress of a data storage device (DSD) in a data storage system including a system controller. A size of a reserved space in a memory of the system controller is determined for storing a data cache image for a data cache of the DSD. A loss of power is detected in the data storage system and the data cache image is transferred from the DSD to the system controller. The data cache image is stored in the reserved space in the memory of the system controller.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: September 1, 2015
    Assignee: Western Digital Technologies, Inc.
    Inventors: Dean M. Jenkins, David M. Hamilton
  • Patent number: 9081566
    Abstract: Methods and systems for operating a semiconductor device (e.g., a microprocessor) are described. The microprocessor is initially operated at a voltage and frequency that would be within operating limits at any device temperature. Using models that relate device temperature, operating limits and power consumption with voltage and frequency, the amount of supply voltage and a new operating frequency can be selected. The models are periodically consulted thereafter to continue adjusting the supply voltage and operating frequency, so that the microprocessor is caused to operate at very close to its capacity, in particular in those instances when, for example, processor-intensive instructions are being executed.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: July 14, 2015
    Inventors: Kleanthes G. Koniaris, James B. Burr, Mark Hennecke
  • Publication number: 20150120004
    Abstract: A signal processing apparatus includes an interface module and a signal processing module. The interface module includes an identification resistance for identifying the interface module, the interface module being connectable to a device configured to perform at least one of measuring of a measuring target and operating of an operation target. The signal processing module includes a first connection terminal connected to one end of the identification resistance, a first power source connected to the identification resistance via the first connection terminal, a detector configured to detect any one of voltage and electrical current at the first connection terminal, and a signal processor configured to process signals received from and transmitted to the device.
    Type: Application
    Filed: October 9, 2014
    Publication date: April 30, 2015
    Inventors: Hiroyuki Jimi, Shunsuke Hayashi, Ikutomo Watanabe
  • Patent number: 9020778
    Abstract: A method of monitoring the mechanical condition of a machine in which statistically significant measurements on a characteristic signal are made over a period of time which can include interruptions and variations in the operation of the machine giving rise to uncharacteristic signals and the processing of the signal during the statistically significant measurement automatically excludes those parts of the signal associated with interruptions and variations in the operation of the machine. The invention also includes apparatus for carrying out the above method including a preamplifier, adapted to provide output to a further amplifier, adapted to provided output to dynamic enveloping circuitry, adapted to provide an output to an analogue to digital converter, adapted to provide an output to a digital micro-electronic device.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: April 28, 2015
    Assignee: Kittiwake Holroyd Limited
    Inventors: Trevor James Holroyd, David Lin
  • Patent number: 9020615
    Abstract: In embodiments of a stability control system, a computing device includes a device housing that is integrated with a display device, and the device housing tilts for multiple display positions. Pivotable components are mechanically-linked and pivot in coordination to position the device housing in a display position, and sensors detect positioning inputs that are received to re-position the device housing. Clutch mechanisms are implemented to limit and/or resist movement of the pivotable components based on the positioning inputs. A stability controller can be implemented to control the clutch mechanisms based on sensor data from the sensors to position the device housing in a display position.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: April 28, 2015
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Bernard K. Rihn, Avi R. Geiger, Andrew W. Hill, Joseph B. Gault, Stephen C. Klein
  • Publication number: 20150100137
    Abstract: A channel interface component including redundancy within a control system with highway addressable remote transfer (HART) channels is provided. In one embodiment, a circuit includes: at least two highway addressable remote transfer (HART) channels, each HART channel including an input terminal and an output terminal configured to connect with a HART device via a current loop; an channel interface component coupled to each HART channel that is configured to support HART protocol signals for communications with the HART device, wherein the channel interface component includes a suicide relay switch for connecting or disconnecting each HART channel from the HART device; and a programmable logic device coupled to the channel interface component that is configured to perform modulation and demodulation of HART protocol signals for communications with the HART device.
    Type: Application
    Filed: December 16, 2014
    Publication date: April 9, 2015
    Inventors: Daniel Milton Alley, Bruce Cameron Henderson, Longhui Shen
  • Patent number: 9000912
    Abstract: A monitoring apparatus includes a processor that executes a procedure, the procedure including outputting an alert when observation data satisfies a certain condition, the observation data being obtained at a certain time interval, suppressing the outputting of the alert in accordance with control, and performing control the suppressing until the certain time elapses since one of the outputting of the alert and the suppressing is performed.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: April 7, 2015
    Assignee: Fujitsu Limited
    Inventors: Hirokazu Sato, Toshiyuki Ito, Yasuomi Iriyama, Yasumasa Oshiro, Tomohiro Nakamura, Tomonori Ota, Junya Hiramatsu, Yuta Inoue
  • Patent number: 8983668
    Abstract: A household appliance, particularly a household dishwasher, washing machine, clothes dryer, or the like, includes an air drying device and/or fluid heating device, connected to an electrical energy supply network. At least one control/monitoring unit is provided to detect any deviation of an actual value of at least one characteristic of the electrical energy supply network from a target value and to generate at least one control signal for setting an electrical component of the member in response to a detected deviation of the actual value.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: March 17, 2015
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Ulrich Ferber, Andreas Heidel, Helmut Jerg, Bernd Kränzle, Kai Paintner
  • Patent number: 8983631
    Abstract: A process-level troubleshooting architecture (PLTA) configured to facilitate substrate processing in a plasma processing system is provided. The architecture includes a process module controller. The architecture also includes a plurality of sensors, wherein each sensor of the plurality of sensors communicates with the process module controller to collect sensed data about one or more process parameters. The architecture further includes a process-module-level analysis server, wherein the process-module-level analysis server communicates directly with the plurality of sensors and the process module controller. The process-module-level analysis server is configured for receiving data, wherein the data include at least one of the sensed data from the plurality of sensors and process module and chamber data from the process module controller.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: March 17, 2015
    Assignee: Lam Research Corporation
    Inventors: Chung Ho Huang, Vijayakumar C. Venugopal, Connie Lam, Dragan Podlesnik
  • Patent number: 8977403
    Abstract: A SCADA system includes a main switching hub and a backup switching hub that relay transmission data between a wind turbine generator and terminals provided in another SCADA system and client terminals, and a network switch for performing switching between the main switching hub and the backup switching hub for relaying transmission data between the wind turbine generator and the terminals. A backup remote I/O connected to the backup switching hub causes the network switch to perform switching based on a switching command from a SCADA terminal input via the backup switching hub. This serves to solve a data transmission problem caused by a problem in a switching hub on the wind turbine generator side from a remote location.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: March 10, 2015
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Hidekazu Ichinose
  • Patent number: 8965550
    Abstract: A wafer fabrication outcome, such as wafer yield or wafer lifetime, is predicted by excluding uncontrollable but measurable internal/external noises of a DOE system, and by rendering relations between wafer design variables and wafer outcome outputs to be more causal, as well as the relations between variances for each of the wafer design variables and the wafer outcome outputs. With the aid of a wafer fabrication outcome predicting model formed by the more causal relations, precision of predicting wafer outcomes can be raised, and performance of wafer fabrication can be thus raised as a result.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: February 24, 2015
    Assignee: United Microelectronics Corp.
    Inventors: Hsin-Ming Hou, Ji-Fu Kung
  • Patent number: 8937741
    Abstract: A multi-function printer main body has a copy function. A remote terminal conducts various kinds of copy settings or instructions to start copy. An execution button is provided in the multi-function printer main body. When the execution button is operated in normal time, copy is executed with the default settings. When copy is executed by inputting copy settings on the remote terminal side, copy can be executed again with the copy settings used for the last time by operating the execution button until a predetermined period of time passes. Therefore, in a case of executing copy with the default settings or repeatedly executing copy with the same settings as the settings used for the last time, a user's work burden can be reduced because it is sufficient for the user to operate the execution button 38.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: January 20, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Yasuhisa Yamamoto
  • Patent number: 8923992
    Abstract: A safety-extension base connected to a main base and a control method thereof are disclosed, the base includes a communication unit, a system state monitoring unit, a module control unit, a memory unit, a state conversion unit and a safety-processing unit. The communication unit performs data communication with the main base. The system state monitoring unit monitors a state of the PLC system. The module control unit controls a general operation of the safety-extension base and outputs different cases of control signals. The memory unit stores the data transmitted from the main base and a program and information. The state conversion unit converts the state of the safety-extension base into the normal state or safety state. The safety-processing unit performs a control of the safety-extension base.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: December 30, 2014
    Assignee: LS Industrial Systems Co., Ltd.
    Inventor: Seung jae Baek
  • Patent number: 8909418
    Abstract: Control devices in a motor vehicle, having first sequence-controlled control devices being connected to a first data bus and second sequence-controlled control devices being connected to a second data bus, are networked. A first control device sends a first message via the gateway device into the first and second data buses. At least a second control device receives the first message and checks whether the receiving of the first message is required for the corresponding control device. The second control device sends out a response message, which indicates whether the second control device has a corresponding need to receive the first message. In the event of such a need, a routing default is established and/or an existing routing default is changed in a gateway device.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: December 9, 2014
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Otmar Siefermann, Frank Wende
  • Patent number: 8897898
    Abstract: An apparatus includes a command generation portion that generates the command signal, and a first monitoring portion that monitors an abnormality relating to actuation of the actuator control apparatus. The actuator control apparatus includes a control portion and a second monitoring portion. The control portion generates a control signal for controlling operation of the actuator in accordance with the above-described command signal. The second monitoring portion monitors an abnormality that relates to actuation of the actuator control apparatus and that is different in type from an abnormality monitored by the first monitoring portion.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: November 25, 2014
    Assignee: NABTESCO Corporation
    Inventors: Shingo Nakagawa, Satoru Kojima
  • Patent number: 8880201
    Abstract: To perform control in synchronization with a control cycle of a control target while maintaining safety. A safety controller includes: a processor; a system program for controlling allocation of an execution time of the processor to tasks; a signal generation unit that generates a periodic carrier signal; a control unit that updates a control content for the control target with a control content instructed by instruction information output from the processor, every first predetermined cycle of the carrier signal, and performs PWM control for the control target; and an interrupt signal generation unit that outputs an interrupt signal to the processor every second predetermined cycle of the carried signal.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: November 4, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tetsuya Taira, Hiroshi Bitoh
  • Patent number: 8862289
    Abstract: A power electronic control circuitry device comprises the following intercommunicating distinct hardware physical entities: a digital microcontroller unit (UNMC) for managing the operation of the device, hardened to withstand the effects of radiations in space; a digital fast regulation unit (UNRR) for controlling priority and real-time processes, hardened to withstand the effects of radiations in space; a digital communication unit (UNC) for communications external to the device, hardened to withstand the effects of radiations in space; a digital tracing and debugging unit (UNTD) for detecting errors in the design of the device; and a digital non-volatile memory (MRN) for storing information representative of the initial configuration of the device, hardened to withstand the effects of radiations in space.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: October 14, 2014
    Assignee: Thales
    Inventors: Marc Fossion, Marc Durvaux
  • Patent number: 8847535
    Abstract: A system and method to determine the operating status of an electrical system includes a system controller and an actuator controller. The system controller determines if the actuator controller is operating properly and initiates a safe mode of operation if the actuator is not operating properly. In turn, the actuator controller determines if the system controller is operating properly and initiates a safe mode of operation if the system controller is not operating properly.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: September 30, 2014
    Assignee: Autoliv ASP, Inc.
    Inventors: Robert Duane Mills, Jeffrey Michael Carpenter
  • Publication number: 20140249653
    Abstract: A control technique that enables the use of slow or intermittently received process variable values in a predictor based control scheme without the need to change the control algorithm includes a controller, such as a PID controller, and a predictor, such as a model based predictor, coupled to receive intermittent feedback in the form of, for example, process variable measurement signals from a process. The predictor, which may be an observer like a Kalman filter, or which may be a Smith predictor, is configured to produce an estimate of the process variable value from the intermittent or slow process feedback signals while providing a new process variable estimate to the controller during each of the controller execution cycles to enable the controller to produce a control signal used to control the process.
    Type: Application
    Filed: March 1, 2013
    Publication date: September 4, 2014
    Inventors: Terrence L. Blevins, Wilhelm K. Wojsznis, Mark J. Nixon
  • Publication number: 20140249654
    Abstract: A control technique that enables the use of received process variable values in a Kalman filter based control scheme without the need to change the control algorithm includes a controller, such as a PID controller, and a Kalman filter, coupled to receive feedback in the form of, for example, process variable measurement signals from a process. The Kalman filter is configured to produce an estimate of the process variable value from slow or intermittent process feedback signals while providing a new process variable estimate to the controller during each of the controller execution cycles to enable the controller to produce a control signal used to control the process. The Kalman filter is also configured to compensate the process variable estimate for process noise with non-zero mean value that may be present in the process. The Kalman filter may apply this compensation to both continuously and intermittently received process variable values.
    Type: Application
    Filed: August 9, 2013
    Publication date: September 4, 2014
    Inventors: Terrence L. Blevins, Mark J. Nixon, Wilhelm K. Wojsznis
  • Patent number: 8805550
    Abstract: In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control the LED light bars, and a mesh network connectivity to other fixtures.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: August 12, 2014
    Assignee: Digital Lumens Incorporated
    Inventors: Brian J. Chemel, Colin Piepgras, Steve T. Kondo, Scott D. Johnston
  • Patent number: 8781637
    Abstract: A power distribution system (that can detect an unsafe fault condition where an individual or object has come in contact with the power conductors) regulates the transfer of energy from a source to a load. Periodically, the source controller opens an S1 disconnect switch, a and load controller opens an S2 disconnect switch. A capacitor represents the capacitance across the load terminals. If the capacitor discharges at a rate higher or lower than predetermined values after the S1 and S2 disconnect switches are opened, then a fault condition is registered, and the S1 and S2 switches will not be commanded to return to a closed position, thus isolating the fault from both the source and the load.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: July 15, 2014
    Assignee: VoltServer Inc.
    Inventor: Stephen S. Eaves
  • Patent number: 8755917
    Abstract: To obtain a safety control device capable of shortening a response time without using a high-speed CPU, command judging units judge whether an output command that has been input is an ON command or an OFF command; comparing units transmit a judgment result of their command judging units to each other and compare the judgment results of the command judging units with each other. Output units output an output signal to turn off a switch if the judgment result of the command judging units is the OFF command or if the comparison result of the comparing units indicates disagreement.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: June 17, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventor: Haruyuki Kurachi
  • Patent number: 8744634
    Abstract: A retrofit kit for a turbine system is provided that includes a safety instrumented system (SIS) controller having a first plurality of functions and the SIS controller is configured to be coupled to a turbine-generator controller, wherein the SIS controller permits a startup function of the turbine-generator controller based on a plurality of inputs from a turbine.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: June 3, 2014
    Assignee: General Electric Company
    Inventors: Hardik Ashok Purani, Randall John Kleen, Tabrez Shakeel, Shahriar Tymus
  • Patent number: 8706306
    Abstract: An exemplary system includes a hydraulic device configured to operate at a fluid pressure. A sensor is configured to measure fluid pressure in the hydraulic device and generate a pressure signal representative of the measured fluid pressure. An actuator configured to regulate fluid flow to the hydraulic device. A control module is configured to identify a fault pending condition based on the measured fluid pressure, increase the fluid pressure in the hydraulic device during the fault pending condition, and iteratively enable and disable the actuator during the fault pending condition to determine if the actuator has failed.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: April 22, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: James R. Bartshe, Syed Naqi
  • Patent number: 8706265
    Abstract: The present invention relates to time partitioning to enable execution of tasks in a constant cycle while guaranteeing dependence of a safety-related system. A safety controller includes a processor and a system program for controlling allocation of an execution time of the processor to tasks. The processor executes the system program to schedule tasks in accordance with scheduling information indicating, in a constant cycle, a period of one of a safety-related TP to which a safety-related task belongs and a non-safety-related TP to which a non-safety-related task belongs. In a task of a TP in the constant cycle, the processor stores the end information upon completion of processing in the task and brings the task into a ready state.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: April 22, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tetsuya Taira, Hiroshi Bitoh
  • Patent number: 8694296
    Abstract: In an automated system which includes a robot manipulator, a workcell, and a control system implemented on a hardware platform based on a programmable logic controller (“PLC”), a method and apparatus for performing integrated simulation that does not require the presence of both the robot manipulator and the workcell. If one component is real, the other component is simulated so as to be sufficiently responsive to responses from the real component such that the real component is unable to discern that the other component is not also real. A computing device simultaneously displays simulacra of both the components, real and simulated, and visualizations of the responses provided by each.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: April 8, 2014
    Assignee: Agile Planet, Inc.
    Inventors: Chetan Kapoor, Peter S. March
  • Patent number: 8688246
    Abstract: In a processing apparatus having: moveable parts disposed to form a predetermined processing environment within a processing chamber in which a predetermined processing is performed on an object to be processed; and a control means for controlling the operation of each of the moveable parts, abnormality inclusive of deterioration with time of the moveable parts constituting the processing apparatus is made to be easily judged. There is provided a vibration detection means for detecting the waveforms of vibrations that occur accompanied by the operation of the moveable parts. When control is made from the control means in order to operate any one of the moveable parts, there are obtained event data corresponding to the control and the waveforms of vibrations of all the moveable parts that are operating simultaneously at the time in question.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: April 1, 2014
    Assignee: Ulvac, Inc.
    Inventor: Yoshinori Fujii
  • Patent number: 8688244
    Abstract: In order to flexibly identify the current operating state of control elements which are used to control a process installation, the invention provides a method for identifying the operating state of at least one control element, which is designed for an active and a passive operating state, for a control apparatus, wherein, in the active operating state, the control element controls a process function of an area of a process installation, comprising the following steps: the control apparatus is connected to the process installation, the control element is functionally associated with the process function, and the operating state of the control element is identified as active on the basis of successful functional association of the control element with the process function.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: April 1, 2014
    Assignee: Phoenix Contact GmbH & Co. KG
    Inventors: Johannes Kalhoff, Thomas Huettemeier
  • Patent number: 8648292
    Abstract: A photoelectric switch reduces a cost load of a user while ensuring its protection function inherent to safety equipment without impairing its safety function, and an optical scanning type photoelectric switch is provided with a muting function settable by the user, which is a function of temporarily invalidating sensing of part or the whole of a protection area, and is provided with two output systems, with respect to each of which the muting function is settable and on each output of which an inspection signal is superimposed at a different timing in a time-division manner.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: February 11, 2014
    Assignee: Keyence Corporation
    Inventors: Shinji Kawabata, Tetsu Inoue
  • Patent number: 8639646
    Abstract: A system to build, manage, and analyze a computer generated risk assessment model and perform a layer of protection analysis. The system uses a computer generated safety instrumented system model for managing a process safety lifecycle for a safety instrumented system in a facility. The computer generated safety instrumented system model has at least one instrumented protective function.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: January 28, 2014
    Assignee: Applied Engineering Solutions, Inc.
    Inventors: Carolyn Crosby Presgraves, Cody O'Neal Wyndham Gentry, Eric Christopher Van Beek, Dane Ryan Brady, Taylor William Schuler, William Davis Creel, Michael Dennis Scott
  • Patent number: 8606377
    Abstract: A computer-implemented system for process control has two operating modes: normal mode and active procedure mode, with automatic transition between them. In normal mode, the operating system, firewall and anti-virus are fully operational. When entering a time-critical phase of a process, a process control application signals the operating system and utilities, whereupon transition to active procedure mode automatically occurs, in which access by the system services and by other applications to the resources of the computer is selectively limited in favor of the process control application. Upon completion of the procedure, the system automatically returns to normal mode.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: December 10, 2013
    Assignee: Biosense Webster, Inc.
    Inventors: Mati Amit, Yitzhack Schwartz