| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 702185000 | Cause or fault identification | 64 |
| 20080221835 | Process and methodology for root cause identification in gas turbine engine performance tracking - A system and method for narrowing an assessment of root cause to a single stage within a gas turbine engine module using coupling factors and known instrumentation non-repeatability. Embodiments examine certain root cause (RC) effects that manifest themselves as coupling levels, or ratios (CR), between an engine module's efficiency change Δη and its flow parameter change ΔFP. | 09-11-2008 |
| 20080270076 | Remote Monitoring of Operating Parts of Assets - Method and system for monitoring a movable asset including an operating part for maintaining an environment in an interior space of the asset conducive to transport of objects includes incorporating a diagnostic module into the asset for diagnosing the operating part, obtaining a diagnosis via the diagnostic module of the operating condition of the operating part, determining whether the diagnosis indicates an abnormal operating condition of the operating part, and when the determination of the diagnosis indicates an abnormal operating condition, transmitting a signal indicative of the abnormal operating condition in association with an identification of the asset to a remote facility. The operating part may be a refrigeration unit and the asset may be a cargo container, e.g., a reefer. In this case, determining whether the diagnosis indicates an abnormal operating condition of the operating part may entail determining whether refrigerant is leaking from the refrigeration unit. | 10-30-2008 |
| 20080288213 | Machine condition monitoring using discontinuity detection - Condition signals of machines are observed and one or more discontinuities are detected in the condition signals. The discontinuities in the condition signals are compensated for (e.g., by applying a shifting factor to models of the signals) and trends of the compensated condition signals are determined. The trends are used to predict future fault conditions in machines. Kalman filters comprising observation models and evolution models are used to determine the trends. Discontinuity in observed signals is detected using hypothesis testing. | 11-20-2008 |
| 20080294382 | Method and apparatus for pump fault prediction - Example embodiments relate to a method and apparatus for pump fault prediction. A method of predicting a pump fault according to example embodiments may include collecting data in real time for qualitative variables associated with a pump and a corresponding semiconductor fabricating process, wherein the pump is configured to create a vacuum in a chamber during the semiconductor fabricating process. Principal components may be identified based on the collected data. Principal components exerting a primary influence on the operation of the pump may be selected from the identified principal components. A management variable may be generated to represent variations of the selected principal components. The management-variable may be monitored in real time to predict a pump fault. A pump fault prediction apparatus according to example embodiments may include a sensor connected to a pump to collect data in real time for qualitative variables associated with the pump and a corresponding semiconductor fabricating process. A controller may be connected to the sensor and may determine that the pump is in an abnormal state if the management variable (e.g., T | 11-27-2008 |
| 20090076776 | PROCESS AND DEVICE FOR DETERMINING A DIAGNOSTIC FOR A BREAKDOWN OF A FUNCTIONAL UNIT IN AN ON-BOARD AVIONIC SYSTEM - The invention relates to a process for determining a diagnostic for a breakdown of an avionic system, the avionic system comprising a plurality of functional units and surveillance units, each capable of performing surveillance of at least one functional unit, characterized in that it comprises the following steps: acquisition of diagnostics from at least one surveillance unit, a diagnostic emitted by one surveillance unit relating to the said at least one functional unit subjected to surveillance by the surveillance unit, construction of possible diagnostics on the basis of the acquired diagnostics, determination of a likelihood criterion for each constructed possible diagnostic, the likelihood criterion for a possible diagnostic being determined on the basis of a unitary criterion determined for each functional unit associated with the possible diagnostic, selection of the possible diagnostic among the possible diagnostics according to the likelihood criterion. | 03-19-2009 |
| 20090083001 | FIELD DEVICE FOR DIGITAL PROCESS CONTROL LOOP DIAGNOSTICS - A diagnostic field device for coupling to a two-wire process control loop of an industrial process control or monitoring system includes digital communication monitoring circuitry which is configured to couple to a two-wire process control loop. The digital communication monitoring circuitry is configured to receive a digital communication signal from the two-wire process control loop. Timing circuitry in the diagnostic field device provides a timing output. Diagnostic circuitry provides a diagnostic output based upon the digital communication signal and the timing output. | 03-26-2009 |
| 20090089012 | FTIR and EDX spectrum library of contaminants found on a HDD and their potential sources - A data collection for utilization in failure analysis. The data collection includes a material data set including information associated with materials used in a component subject to a failure analysis process. The data collection also includes a source data set including information associated with the sources of the materials. The data collection further includes an image data set including graphical representations of the materials. The data collection is for providing identification of the composition of the contaminant and source of the contaminant. | 04-02-2009 |
| 20090099819 | DIAGNOSTIC METHOD FOR ROOT-CAUSE ANALYSIS OF FET PERFORMANCE VARIATION - A diagnostic method of and computer system for root-cause analysis of performance variations of FETs in integrated circuits and a method and computer system for monitoring a field effect transistor manufacturing process. The diagnostic method includes measuring source currents in the linear and saturated regions of two FETs, calculating ratios of the source currents in the linear and saturated regions for the and two FETs and comparing the ratios of the two FETs to determine a probable root cause for a performance variation between the two FETs. One of the FETs has a known good performance. | 04-16-2009 |
| 20090157358 | System for diagnosing and monitoring structural health conditions - Systems for diagnosing/monitoring structural health conditions of objects. The system, which monitors structural health conditions by use of a plurality of patch sensors attached to an object, includes at least one bridge box and at least one relay switch array module having a plurality of switches. Each of the patch sensors is adapted to perform at least one of generating a wave upon receipt of an actuator signal and developing a sensor signal. The bridge box includes an analogue-to-digital converter (ADC) for converting the sensor signal to a digital signal. The switches are adapted to establish a channel between a selected one of the patch sensors and the ADC. | 06-18-2009 |
| 20090182533 | REMOTE DIAGNOSTIC SERVICE - Diagnostic events can be collected on electronic devices at geographically distributed service centers and transmitted to a remote (e.g., network-based) diagnostic service. The diagnostic service can aggregate and analyze the diagnostic events to determine, for example, one or more possible causes of the diagnostic events, and can provide information or guidance to users and/or service personnel for characterizing, resolving or explaining the diagnostic events. In one aspect, log files of diagnostic events captured on devices are sent to the diagnostic service. For each log file, the diagnostic service can compute frequencies of recorded diagnostic events. The computed frequencies can be compared against accepted and/or expected values generated from reference data. The diagnostic service can respond to users and/or service personnel with information or guidance for resolving, characterizing or explaining the diagnostic event based on a result of the comparisons. | 07-16-2009 |
| 20090234617 | DIAGNOSTIC METHOD FOR ROOT-CAUSE ANALYSIS OF FET PERFORMANCE VARIATION - A diagnostic method of and computer system for root-cause analysis of performance variations of FETs in integrated circuits and a method and computer system for monitoring a field effect transistor manufacturing process. The diagnostic method includes measuring source currents in the linear and saturated regions of two FETs, calculating ratios of the source currents in the linear and saturated regions for the and two FETs and comparing the ratios of the two FETs to determine a probable root cause for a performance variation between the two FETs. One of the FETs has a known good performance. | 09-17-2009 |
| 20090248363 | METHOD OF MULTI-LEVEL FAULT ISOLATION DESIGN - A fault isolation method and system includes tailored fault isolators for each grouping of similar data to differentiate between one or several potential faults within any group. | 10-01-2009 |
| 20090248364 | Ultrasound system - An ultrasound system for providing megasonics and ultrasonics to a liquid at different frequencies and/or sweeping frequencies with associated generators, transducers, operations between resonance and anti-resonance, non-resistive output with phase shift, multiple/sweep/single frequency modes, individually controlled sections, gate drive power control, variable inductive compensation for temperature changes, parallel inductor matching, stacked ceramics and non-volatile memory storage of fault, error and failure history. | 10-01-2009 |
| 20090254309 | ABNORMALITY IDENTIFYING METHOD, ANALYZING APPARATUS, AND REAGENT - An abnormality identifying method is for identifying an abnormality detail in an analyzing apparatus that analyzes a specimen based on optical measurement. The method includes: for a reagent having a same function as an intermediate product produced during analysis processes, canceling a predetermined analysis process other than an analysis process to be verified for abnormality from among analysis processes with respect to the specimen; and identifying an abnormality in the analyzing apparatus based on a measurement result obtained by performing a same analysis process as an analysis process performed on the intermediate product as well as the analysis process to be verified for abnormality. | 10-08-2009 |
| 20090276184 | SYSTEMS AND METHODS FOR IDENTIFYING FAULTY SENSORS - Systems and methods for identifying a faulty sensor are provided. One system includes multiple sensors, each generating a first set of parameters based on detected measurands. The system also includes a fusion module for generating a second set of parameters by fusing the first sets of parameters, and a sensor fault module including multiple fault templates defining sensor faults, an estimation module for generating a third set of parameters based on the first and second sets of parameters, and an evaluation module. The evaluation module is configured to compare the third set of parameters and the fault templates, and determine a sensor fault based on the comparison. A method includes receiving a first set of parameters based on measurands from multiple sensors and a second set of parameters based on a measurand from a sensor, and determining a sensor fault based on the first and second set of parameters. | 11-05-2009 |
| 20090292506 | METHODS OF AND APPARATUSES FOR MAINTENANCE, DIAGNOSIS, AND OPTIMIZATION OF PROCESSES - One aspect of the present invention is a method of monitoring processes, optimizing processes, and diagnosing problems in the performance of a process tool for processing a workpiece. Another aspect of the present invention is a system configured for monitoring processes, optimizing processes, and diagnosing problems in the performance of a process tool for processing a workpiece. One embodiment of the present invention includes a software program that can be implemented in a computer for optimizing the performance of a process tool for processing a workpiece. | 11-26-2009 |
| 20100017167 | Method for determining faulty components in a system - In a method for determining faulty components in a system having a plurality of interacting components, lists of potentially faulty components are prepared as a function of different diagnosis algorithms implemented independently of each other, and an error value is assigned to each potentially faulty component. The error values for at least one selection of components of the system are linked to form an error score value for a particular potentially faulty component. | 01-21-2010 |
| 20100082298 | FAILURE DIAGNOSIS APPARATUS FOR EXHAUST PRESSURE SENSOR - A failure diagnosis apparatus for an exhaust pressure sensor for detecting the exhaust pressure in an exhaust gas recirculation passage which connects an exhaust passage and an intake passage of an internal combustion engine. A first preliminary determination that the exhaust pressure sensor is normal, is made when the engine is in a predetermined low load operating condition and a difference between the detected exhaust pressure and the atmospheric pressure is equal to or less than a first determination threshold value. A second preliminary determination that the exhaust pressure sensor is normal, is made when the engine is in a predetermined high load operating condition and the difference between the exhaust pressure detected by the exhaust pressure sensor and the atmospheric pressure is equal to or greater than a second determination threshold value. A final determination that the exhaust pressure sensor is normal, is made when both of the first and second preliminary determinations are made. | 04-01-2010 |
| 20100106462 | Systems and Methods for Diagnosing Gas Turbine Engine Faults - Systems and methods for diagnosing gas turbine engine faults are provided. In this regard, a representative method includes: dynamically assessing detected symptoms based, at least in part, on failure rates of components of the gas turbine engine as functions of usage of the components such that suspected faults are identified. | 04-29-2010 |
| 20100131241 | ENTERPRISE WIDE SYSTEM AND METHODS FOR CONFIGURING, DIAGNOSING, AND UPDATING APPLIANCES - A system and methods to provide appliance field support personnel with a tool that, together with proper interface modules, simplifies the execution of diagnostic procedures and provides an easy way to configure, reconfigure, or update electronic boards in the home on a client side of an enterprise wide system. The electronic boards serve as electronic controllers in the appliances and are programmable generic service boards. With such a system, it is possible to update and re-configure electronic boards and interact directly with an electronic controller of an appliance while an appliance is operating. Software, configuration data, and control data are downloaded from a server-side configuration of the enterprise wide system to update the electronic boards. | 05-27-2010 |
| 20100204958 | EQUIPMENT MONITORING DEVICE AND REMOTE MONITORING SYSTEM - An equipment monitoring device for monitoring equipment and transmitting an operational status of the equipment to a remote monitoring device that is provided in a remote location relative to the equipment includes an anomaly detection unit, an anomaly identifying unit and an anomaly reporting unit. The anomaly detecting unit is configured to detect an anomaly that occurs in the equipment. The anomaly identifying unit is configured to identify the anomaly based on at least one of an anomaly category and an anomaly level. The an anomaly reporting unit is configured to issue an anomaly report of the anomaly to the remote monitoring based on identification of the anomaly by the anomaly identifying unit. | 08-12-2010 |
| 20100235143 | METHOD FOR THE GENERATION OF ANALYTICAL REDUNDANCY RELATIONS FOR SYSTEM DIAGNOSTICS - A method is described for generating a set of analytical redundancy relations representative of a system with which a plurality of sensors is associated for the observation of variables indicative of operating conditions and adapted to enable detection and discrimination of faults. | 09-16-2010 |
| 20110015898 | METHOD AND ARRANGEMENT FOR DETECTING, LOCALIZING AND CLASSIFYING DEFECTS OF A DEVICE UNDER TEST - An arrangement and method for assessing and diagnosing the operating state of a device under test in the presence of a disturbing ambient noise and for detecting, localizing and classifying defects of the device which affect its operational reliability and quality. At least two sensors monitor signals at arbitrary locations which are affected by signals emitted by defects and by ambient noise sources. A source analyzer receives the monitored signals, identifies the number and location of the sources, separates defect and noise sources, and analyzes the deterministic and stochastic signal components emitted by each source. Defect and noise vectors at the outputs of the source analyzer are supplied to a defect classificator which detects invalid parts of the measurements corrupted by ambient noise, accumulates the valid parts, assesses the quality of the system under test and identifies the physical causes and location of the defects. | 01-20-2011 |
| 20110054843 | DIAGNOSTIC SYSTEM AND METHOD FOR HOME APPLIANCE - A diagnostic system and method for a home appliance is provided. When the home appliance outputs product information as a sound signal, a service center remotely performs fault diagnosis of the home appliance by receiving the sound signal, detecting the product information from the sound signal, checking the state of the home appliance using diagnostic data included in the product information to determine whether the home appliance is out of order, determining, when a drainage error has occurred, a cause of the drainage error, and deriving a solution to the drainage error. Upon deriving a diagnosis result through the fault diagnosis of the home appliance, the service center immediately notifies the user of the diagnosis result and may dispatch a service technician or may provide the user with a solution to allow the user to easily fix the fault without dispatching a service technician. | 03-03-2011 |
| 20110054844 | DIAGNOSTIC SYSTEM AND METHOD FOR HOME APPLIANCE - A diagnostic system and method for a home appliance is provided. When the home appliance outputs product information as a sound signal, a service center remotely performs fault diagnosis of the home appliance by receiving the sound signal, detecting the product information from the sound signal, checking the state of the home appliance using diagnostic data included in the product information to determine whether the home appliance is out of order, determining, when a motor error associated with a motor operation has occurred, a cause of the motor error, and deriving a solution to the motor error. Upon deriving a diagnosis result through the fault diagnosis of the home appliance, the service center immediately notifies the user of the diagnosis result and may dispatch a service technician or may provide the user with a solution to allow the user to easily fix the fault without dispatching a service technician. | 03-03-2011 |
| 20110054845 | DIAGNOSTIC SYSTEM AND METHOD FOR HOME APPLIANCE - A diagnostic system and method for a home appliance is provided. When the home appliance outputs product information as a sound signal, a service center remotely performs fault diagnosis of the home appliance by receiving the sound signal, detecting the product information from the sound signal, checking the state of the home appliance using diagnostic data included in the product information to determine whether the home appliance is out of order, determining, when a temperature error associated with a temperature abnormality has occurred, a cause of the temperature error, and deriving a solution to the temperature error. Upon deriving a diagnosis result through the fault diagnosis of the home appliance, the service center immediately notifies the user of the diagnosis result and may dispatch a service technician or may provide the user with a solution to allow the user to easily fix the fault without dispatching a service technician. | 03-03-2011 |
| 20110060553 | DIAGNOSTIC SYSTEM AND METHOD FOR HOME APPLIANCE - A diagnostic system and method for a home appliance is provided. When the home appliance outputs product information as a sound signal, a service center remotely performs fault diagnosis of the home appliance by receiving the sound signal, detecting the product information from the sound signal, checking the state of the home appliance using diagnostic data included in the product information to determine whether the home appliance is out of order, determining, when an unbalance error associated with a balance abnormality of the home appliance has occurred, a cause of the unbalance error, and deriving a solution to the unbalance error. Upon deriving a diagnosis result through the fault diagnosis of the home appliance, the service center immediately notifies the user of the diagnosis result and may dispatch a service technician or may provide the user with a solution to allow the user to easily fix the fault without dispatching a service technician. | 03-10-2011 |
| 20110178773 | System and Method for Detecting Fluid Delivery System Conditions Based on Motor Parameters - Systems and methods for detecting various system conditions in a fluid delivery system (such as an HVAC system) based on a motor parameter are disclosed. Embodiments of the present invention relate to detecting: filter condition, frozen coil condition, register condition, energy efficiency, system failure, or any combination thereof. Embodiments of the present invention relate to detecting fluid delivery system conditions based on motor parameters including system current, system power, system efficiency, motor current, motor power, motor efficiency, and/or a change (or rate of change) in motor parameters. Techniques for responding to a clogged filter and a frozen coil are also disclosed. Also disclosed are techniques for characterizing a fluid delivery system off-site, prior to system installation. | 07-21-2011 |
| 20110184702 | Identifying the Defective Layer of a Yield Excursion Through the Statistical Analysis of Scan Diagnosis Results - Yield excursions in the manufacturing process today require an expensive, long and tedious physical failure analysis process to identify the root cause. Techniques are disclosed herein for efficiently identifying the root-cause of a manufacturing yield excursion by analyzing fail data collected from the production test environment. In particular, statistical hypothesis testing is used in a novel way to analyze logic diagnosis data along with information on physical features in the design layout and reliably identify the cause of the yield excursion. | 07-28-2011 |
| 20110307218 | SYSTEM AND METHOD FOR CONFLICT RESOLUTION TO SUPPORT SIMULTANEOUS MONITORING OF MULTIPLE SUBSYSTEMS - A system includes a plurality of sensors configured to measure one or more characteristics of a gearbox. The system also includes a subsystem interaction module device, which includes at least one interface configured to receive input signals associated with multiple components of a system. The subsystem interaction module device also includes at least one processing unit configured to identify a potential fault in one or more of the components using the input signals and to provide an indicator identifying the potential fault. The at least one processing unit is configured to identify the potential fault by: identifying conflicting frequencies that are associated with different faults in the components of the system; and determining a confidence level associated with the potential fault based on the conflicting frequencies. | 12-15-2011 |
| 20110307219 | METHOD FOR DIAGNOSTIC MONITORING - In order to provide a method for the diagnostic monitoring of the operating states of a plurality of technical systems ( | 12-15-2011 |
| 20110307220 | IDENTIFYING FAILURES IN AN AEROENGINE - A method and a system for identifying failures in an aeroengine. The system includes: a mechanism defining a set of standardized indicators representative of operation of the aeroengine; a mechanism constructing an anomaly vector representative of a behavior of the engine as a function of the set of standardized indicators; a mechanism selecting in an event of an anomaly being revealed by the anomaly vector a subset of reference vectors having directions belonging to a determined neighborhood of a direction of the anomaly vector, the subset of reference vectors being selected from a set of reference vectors associated with failures of the aeroengine and determined using criteria established by experts; and a mechanism identifying failures associated with the subset of reference vectors. | 12-15-2011 |
| 20120078578 | MONITORING AND DIAGNOSING GENERATOR OPERATION - A tool for evaluating operation of a generator is provided. Diagnostic data is obtaining from a sensor in a generator. An associated computer system evaluates the diagnostic data to determine whether an anomaly exists in the data. If an anomaly exists, the computer system can provide a fault code that indicates a nature of an error in the generator that caused the anomaly. | 03-29-2012 |
| 20120116722 | Detection of Defects in an Electrochemical Device - A method for detecting defects in an electrochemical device, including obtaining at least one characteristic value dependent on at least one variable received from the electrochemical device and determining at least one defect in said device from the characteristic value obtained. The method comprises a mathematical operation including a wavelet transform, which operation is carried out in order to obtain the characteristic value from the variable received. The invention also relates to a device that carries out one such method, as well as to a corresponding computer program. | 05-10-2012 |
| 20120166142 | Anomaly Detection and Diagnosis/Prognosis Method, Anomaly Detection and Diagnosis/Prognosis System, and Anomaly Detection and Diagnosis/Prognosis Program - Provided is an anomaly detection method and system capable of constructing determination condition rules of anomaly detection from case-based anomaly detection by way of multivariate analysis of a multi-dimensional sensor signal, applying the rules to design-based anomaly detection of individual sensor signals, and also appropriately executing setting and control of threshold values for highly sensitive, early, and clearly visible detection of anomalies. Anomaly detection on the basis of a case base by way of multivariate analysis controls design-based anomaly detection. That is to say, (1) anomaly detection on the basis of a case base performs selection of sensor signals and anomaly detection according to various types of anomalies. Specifically, anomaly detection (characteristic conversion), evaluation of level of effect of each signal, construction of determination conditions (rules), and display and selection of sensor signals corresponding to the anomaly are performed. (2) Design-based anomaly detection for individual sensor signals performs anomaly detection after the above have been performed. Specifically, setting and control of thresholds, display of thresholds, and anomaly detection and display are performed. | 06-28-2012 |
| 20120215492 | Methods & apparatus for remotely diagnosing grid-based computing systems - A method, apparatus and computer program product for remotely diagnosing grid-based computing systems includes establishing an event framework defining an arrangement of event information, receiving a diagnostic event record from a resource within the grid-based computing system, the diagnostic event record containing event data concerning an event that has occurred within the resource in the grid, and diagnostic telemetry information concerning operation of the resource up to the occurrence of the event. The diagnostic event record is applied to the event framework to identify at least one resource causing the occurrence of the event in the grid-based computing system. Specific identities of resources impacted by the event are presented to the user via a graphical user interface. | 08-23-2012 |
| 20120259587 | Method and Device for Determining Diagnoses - A method for determining diagnoses for a system having a plurality of pieces of equipment, the equipment being adapted to transmit signals indicating its operating state, includes the following steps: acquiring observations based on signals transmitted by the equipment of the system under diagnosis, and determining a global situation based on the acquired observations and predetermined failure trees associated with these observations, wherein a failure tree describes the relations between an observation and root causes, and a root cause indicates a failure in a piece of equipment; determining connected situations, a connected situation being a set of observations which, when considered in pairs, have at least one common root cause in their failure tree; determining partial diagnoses on the basis of each of the connected situations, the diagnoses including root causes associated with observations signalling a failure; and, displaying the diagnoses. | 10-11-2012 |
| 20120283990 | SYSTEM AND METHOD TO MONITOR COMPRESSOR RACK OPERATION - A commercial refrigeration system receives data from a plurality of compressors in a compressor rack, and uses the data to model a steady state amp draw for each of the compressors in the compressor rack. The system receives additional data from the plurality of compressors, and determines a steady state amp draw for each of the compressors from the additional data. The system then compares the amp draw from the additional data with the steady state amp draw model, and identifies a compressor fault based on the comparison of the steady state amp draw from the additional data with the steady state amp draw model. | 11-08-2012 |
| 20120296607 | INTELLIGENT GRID COMMUNICATION NETWORK MANAGEMENT SYSTEM AND METHODS - A system for communication network management of a utility grid includes a database configured to store a grid information data set, where the grid information data set includes network device information for the utility grid and a network management system executable by a processor to: receive an event message from one or more network devices indicative of one or more failures in a communication network of the utility grid; retrieve the grid information data set; identify one or more network device associated with the one or more failures based on the grid information data set; transmit a request for a response to the identified one or more network devices; determine a response pattern based on responses from the identified one or more network devices in order to identify a cause of the failure based on the response pattern. | 11-22-2012 |
| 20120303324 | CONTROL SYSTEM FOR PROVIDING DIAGNOSTIC PULSE SIGNAL, AND CONTROL DEVICE THEREFOR - A control device includes a diagnostic pulse signal generating section having an internal circuit that generates control data and generates diagnostic pulse data for diagnosing the operating terminal and diagnoses the function of the signal line and the operating terminal from the waveform of a feedback signal of the diagnostic pulse signal; a variable amplification circuit that multiplexes the diagnostic pulse signal on the control signal and sends the result to the operating terminal with a preset signal level; and a receiving circuit that receives the feedback signal and sends it to the internal circuit. The internal circuit comprises a correction pulse data generating section that corrects the diagnostic pulse data by correcting the rise time of the diagnostic pulse signal. Even if the length of the signal line is long, the diagnostic pulse signal reception can be achieved without expanding the pulse width of the diagnostic pulse signal. | 11-29-2012 |
| 20120310597 | FAILURE CAUSE DIAGNOSIS SYSTEM AND METHOD - Conditional base maintenance has been gaining widespread acceptance, with numerous sensors attached to equipment for constant monitoring of its operational state, the resulting sensor data being compared with those about the equipment in the normal state for a diagnosis to determine whether the equipment is currently operating normally, the result of the diagnosis being used to conduct maintenance. Conditional base maintenance can rapidly detect aging deterioration of the equipment, so that abnormal sates that were not detected before in time base maintenance can now be detected. However, although conventional diagnosis technology can distinguish between the normal state and anomaly, it has been difficult with such technology to identify causes including abnormal phenomena and parts. If it is determined that the target equipment to be diagnosed deviates from the normal state, the degree of deviation of each parameter from the normal state as the reference is calculated as an abnormal contribution ratio. A failure cause is estimated from a similarity ratio between the calculated abnormal contribution ratio and the abnormal contribution ratio of each of the failure causes collected in the past and including failure phenomena and failure parts. | 12-06-2012 |
| 20120330614 | RULE-BASED DIAGNOSTICS APPARATUS AND METHOD FOR ROTATING MACHINERY - A method includes obtaining information associated with a machine having one or more components, where the information includes multiple rules associated with the one or more components. The method also includes receiving measurements of a vibration level of the machine and generating, based on the measurements, one or more feature values for one or more features associated with the one or more components. The method further includes determining a component-related condition for the one or more components based on the one or more feature values and the rules. In addition, the method includes providing an indicator identifying the component-related condition. | 12-27-2012 |
| 20120330615 | FORENSIC ANALYSIS OF RESOURCE CONSUMPTION DATA - Following an explosion, fire, flood, water damage, or other event, consumption data of utility resources such as gas and water may be used to determine a cause of the event. For example, an interrogation may be used to read data logging data from a data collection device. The data logging data may include a record of consumption data for a resource spanning a time of an event. The data logging data may be analyzed to determine whether a utility providing the resource was responsible for the event. | 12-27-2012 |
| 20130006581 | COMBUSTOR HEALTH AND PERFORMANCE MONITORING SYSTEM FOR GAS TURBINES USING COMBUSTION DYNAMICS - A system and method each utilize combustion dynamics data to monitor and assess gas turbine combustor health and performance. The system and method each employ a physics-based model to differentiate changes in the spectral features attributable to variations in the operating conditions from differences caused from changes in the hardware. | 01-03-2013 |
| 20130024160 | EVALUATING MODELS USING FORECAST ERROR ATTRIBUTION - Methods, computer readable media, and apparatuses for evaluating models using forecast error attribution are presented. According to one or more aspects, one or more input values corresponding to one or more input variables may be forecast. One or more results of a modeling function may be calculated using the one or more forecasted input values. Thereafter, actual performance data corresponding to the modeling function may be received. One or more holdout values for the modeling function may be calculated using the actual performance data. Subsequently, a graph that includes the one or more results of the modeling function, the actual performance data, and the one or more holdout values for the modeling function may be plotted. In some arrangements, the one or more holdout values for the modeling function may be indicative of one or more assumption errors made with respect to the one or more forecasted input values. | 01-24-2013 |
| 20130066593 | DIAGNOSTIC APPARATUS AND METHOD FOR HOME APPLIANCE - The present disclosure relates to diagnostic apparatus and method for home appliance which make it easy to diagnose a breakdown of a home appliance, using a signal including product information and outputted from the home appliance, in which a signal is converted in accordance with signal distortion generated in the process of transmitting the output signal or in a terminal, so that the product information of the home appliance is easily extracted, accuracy of a diagnosis result is improved, an after-sales service for a breakdown of the home appliance is easily provided, and reliability of the product is improved by the improvement of accuracy of the diagnosis result. | 03-14-2013 |
| 20130144557 | SYSTEM DIAGNOSTIC TOOLS FOR PRINTMAKING DEVICES - There is provided a method and system evaluating performance of a printing device. In accordance with the method a diagnostic routine is executed on the printing device. The diagnostic routine evaluates performance of the printing device using a set of instructions stored on a computer-readable medium. The set of instructions are configured to identify a fault in the performance of the printing device based on an artifact identifiable on at least one diagnostic output. The diagnostic output is generated by the printing device with the identifiable artifact in accordance with the diagnostic routine for identifying the artifact and associated fault of the printing device. | 06-06-2013 |
| 20130238284 | TESTING METHOD - A testing method used to check if an application executed in an operating system is crashed. The operating system is provided with a first value corresponding to the application, and the first value is stored in a storage unit. The testing method includes the following steps: send a message in a predetermined time period to the application to request a feedback from the application, and adjust the first value stored in the storage unit to another value by proceeding a predetermined algorithm; reboot the operating system if the said another value is equal to a second value; reset the said another value stored in the storage unit to the first value if the application gives the feedback. | 09-12-2013 |
| 20130268241 | EFFICIENT HEALTH MANAGEMENT, DIAGNOSIS AND PROGNOSIS OF A MACHINE - Mechanisms for generating an analysis result about a machine are provided. A device generates a first health management (HM) analysis result regarding a machine based on real-time first sensor information received during a first period of time and on a first version HM analytic model. The device provides, to an off-board device, a plurality of sensor information comprising the real-time first sensor information and that is generated during the first period of time. The device receives a second version HM analytic model that is based at least in part on the plurality of sensor information and fault information that identifies actual faults that have occurred on the machine. The device generates a second HM analysis result regarding the machine based on real-time second sensor information received during a second period of time and on the second version HM analytic model. | 10-10-2013 |
| 20140012543 | DIAGNOSIS CONTROL METHOD OF AIR CONDITIONER - A diagnosis control method of an air conditioner is provided to clearly inform a user of an air conditioner installation error. The diagnosis control method includes receiving a test run command or a self-diagnosis command for diagnosis of the air conditioner, performing a first test run to diagnose an assembly state of the air conditioner, performing a second test run to diagnose pipe connection of the air conditioner and an amount of refrigerant in the air conditioner, performing a determination including diagnosing a state of the air conditioner based on operation results of the first test run and the second test run, and displaying the diagnosis result through a display device provided at an indoor unit of the air conditioner. | 01-09-2014 |
| 20140019092 | System and Method for Monitoring Process Control System Health - Systems and methods are provided for monitoring health of a process control system. The system includes a device configured to receive diagnostic alarm data that relates to the health of the process control system, group the diagnostic alarm data into a plurality of groups, and identify a problem associated with each group of diagnostic alarm data in the plurality of groups. | 01-16-2014 |
| 20140067327 | SIMILARITY CURVE-BASED EQUIPMENT FAULT EARLY DETECTION AND OPERATION OPTIMIZATION METHODOLOGY AND SYSTEM - A similarity (or health condition evaluation) curve-based equipment fault early detection and operation optimization methodology and system, includes: selection of normal operating data from historical equipment operation records; generation of data collection from normal operating data, and creation of a data model covering equipment multi-operation conditions based on the distribution of data collections; creation of a health condition evaluation or condition similarity curve using continuous relativity calculations between online real-time operating data and historical data in the model; automatic generation of equipment health condition safety baseline through scoring on historical normal equipment operation records; Based on the change of equipment health condition evaluation curve against the safety baseline, in combining with identifying abnormally-changed process variables which lead to the decrease of health condition evaluation values, early warning on equipment health condition change is published and guidance on equipment operation optimization is provided. | 03-06-2014 |
| 20140114613 | METHOD AND APPARATUS FOR DIAGNOSIS AND RECOVERY OF SYSTEM PROBLEMS - Embodiments of the present invention relate to method and apparatus for system problem diagnosis and recovery. According to embodiments of the present invention, problem symptom information in a system can be automatically monitored and collected BY a monitoring apparatus (or referred as to “agent”) deployed at the system side. Upon after receiving such information, the diagnosis apparatus, for example, may automatically determine a root cause of the problem by querying a backend knowledge repository, and possibly generate an executable software package for recovering the problem. If the diagnosis apparatus determines that the currently available information is insufficient to determine a creditable enough root cause and/or is insufficient to generate the software package for recovering the problem, the diagnosis apparatus may interactively control the monitoring apparatus to collect desired additional information. In this way, the efficiency and accuracy of problem diagnosis and recovery may be improved. | 04-24-2014 |
| 20140156226 | Pitot Tube Diagnostic Systems and Methods - A pitot tube diagnostic system including a data acquisition unit to acquire an output signal of a pitot-static system, the output signal having a static component and a dynamic component, and a processing unit to monitor the dynamic component for one or more characteristics that deviate from one or more predetermined reference characteristics to indicate impairment of the pitot-static system. | 06-05-2014 |
| 20140172371 | ADAPTIVE FAULT DIAGNOSIS - According to an example, an adaptive fault diagnosis system may include a memory storing machine readable instructions to receive metrics and events from an enterprise system, and use a substitution graph to determine if a received metric or a received event belongs to a cluster that includes one or more correlated metrics and/or events grouped based on similarity. If the received metric or the received event belongs to the cluster, the memory may further store machine readable instructions to use a detection graph to determine if the received metric or the received event is identifiable to form a fault pattern by traversing a fault path of the detection graph. Further, the memory may further store machine readable instructions to diagnose a fault based on the traversal of the fault path of the detection graph. The system may include a processor to implement the machine readable instructions. | 06-19-2014 |
| 20140358481 | SYSTEM FOR IDENTIFYING CAUSE OF ABNORMALITY, METHOD OF IDENTIFYING CAUSE OF ABNORMALITY, AND PROGRAM FOR IDENTIFYING CAUSE OF ABNORMALITY - A system includes a measured value storing device in which a product measured value acquired periodically and a manufacturing condition measured value are stored, a product threshold value setting device that sets a product threshold value for determining whether a product is normal or not, an abnormality accumulating device that acquires a product abnormality cumulative frequency where the product abnormality measured value exceeds the product threshold value, a product threshold value changing device that changes the product threshold value, a condition threshold value setting device that sets a condition threshold value to be compared with a manufacturing condition measured value, a condition abnormality accumulating device that acquires a condition cumulative frequency, a condition threshold value changing device that changes a condition threshold value, and a cause identifying device that identifies a cause of abnormality based on the distribution of the product abnormality cumulative frequency and a manufacturing condition cumulative frequency. | 12-04-2014 |
| 20140365179 | Method and Apparatus for Detecting and Identifying Faults in a Process - A method and apparatus is provided for detecting and identifying faults in a process having a set of sensors, each of which produces an associated sensor output signal. The method and apparatus extracts the qualitative trend of each variable after detecting an abnormal situation. The set of variable trends constitutes the fault signature which can be compared to a previously generated signature database. | 12-11-2014 |
| 20150066432 | COMPUTING DEVICE AND METHOD FOR MANAGING WARNING INFORMATION OF THE COMPUTING DEVICE - In a method for managing warning information of a computing device, when an equipment fault is detected, the method determines whether or not a unique identification code of the detected equipment fault is recorded in a list. If the unique identification code of the detected equipment fault is recorded in the list, the method determines whether or not a frequency of occurrences of the detected equipment fault exceeds a preset value. If the frequency of occurrences of the detected equipment fault does not exceed a preset value, warning information of the detected equipment fault is generated. Otherwise, if the frequency of occurrences of the detected equipment fault exceeds a preset value, the method stops generating the warning information. | 03-05-2015 |
| 20150073751 | Embedded Prognostics on PLC Platforms for Equipment Condition Monitoring, Diagnosis and Time-to-Failure/Service Prediction - A prognostics analysis software module is embedded in a programmable logic controller (PLC) software platform. During cycling of the PLC real-time operating program, data is read from sensors and written to a buffer only when the prognostics analysis software module is idle. The prognostics analysis software module is then activated by a system function block of the PLC software platform. Before determining any prognostic information, prediction models within the prognostics analysis software module are automatically trained using features extracted from the sensor data. | 03-12-2015 |
| 20150120248 | SYSTEM AND METHOD FOR DIAGNOSING MACHINE FAULTS - A method for diagnosing machine faults, includes obtaining sensory data from a machine and obtaining a plurality of measured structural features based on the sensory data. The method also includes obtaining a plurality of reference cases corresponding to the sensory data, from a database. The plurality of reference cases include a plurality of reference structural features and a plurality of fault identifiers. The method further includes computing a statistical parameter based on the plurality of reference cases and obtaining a first subset of reference structural features from the plurality of reference structural features based on the computed statistical parameter. The method also includes computing a plurality of similarity values based on the obtained first subset of reference structural features and the plurality of measured structural features. The method further includes identifying at least one fault identifier among the plurality of fault identifiers, based on the computed plurality of similarity values. | 04-30-2015 |
| 20150338449 | DISTRIBUTED FILTERING METHOD FOR FAULT DIAGNOSIS IN A SENSOR NETWORK - Discussed herein are a sensor-network system and a method thereof for detecting and isolating faults occurring in sub-systems and sensors included in the network. The sub-systems and the sensor measurements are subject to noise and disturbances. A bank of Kalman-filters (KF) is used to detect and isolate the faults. Each KF is driven by either a pair of consecutive sensor measurements or a pair including a reference input and a sensor measurement. The KF residual is computed for each measurement pair and is a reliable indicator of a fault in subsystems and sensors located in the network. | 11-26-2015 |
| 20160140429 | SYSTEM AND METHOD FOR CONVEYANCE OF MODULE STATE INFORMATION - A control module comprising a display, according to various embodiments, can include an input/output module configured to receive one or more signals responsive to a state of at least one diagnostic sensor, the state being indicative of at least one from the group including a fault, an error, and a malfunction. A processor is configured to match values of the received signals to one of a plurality of stored table values to identify a matching value, each matching value corresponding to a code. A barcode generator creates a two-dimensional barcode representative of the code and outputs the barcode to the display. In one embodiment, the diagnostic sensor can be an internal diagnostic sensor within the control module capable of performing self-diagnostics. In another embodiment, the diagnostic sensor can be an external diagnostic sensor associated with an external device for performing remote diagnostics. | 05-19-2016 |
| 20160170818 | ADAPTIVE FAULT DIAGNOSIS | 06-16-2016 |
| 20160377334 | METHOD AND APPARATUS FOR MONITORING STATUS OF TERMINAL COMPRESSOR - The present disclosure provides a method and an apparatus for monitoring a status of a terminal compressor. The method includes: obtaining a working status parameter of a compressor in a first terminal; judging whether the working status parameter falls in a preset range; if the working status parameter does not fall in the preset range, determining that an abnormality of the compressor occurs; and analyzing a reason for the abnormality and transmitting preset information to a second terminal that controls the first terminal. | 12-29-2016 |
