Abstract: A method of detecting a temperature sensor failure in a turbine system, includes obtaining individual measurement values from each temperature sensor in a group of temperature sensors, calculating a characteristic value for each temperature sensor in the group based on the measurement values for the corresponding temperature sensor, selecting a first characteristic value among the calculated characteristic values, determining a first maximum value as the maximum of the characteristic values except for the first characteristic value, and determining that the temperature sensor corresponding to the first characteristic value is defective if the first characteristic value is larger than the first maximum value multiplied by a predetermined factor. A corresponding device, system, computer program and computer program product utilize the method.

Abstract: A method and apparatus for analyzing an investigated complex system the complex system including a plurality of system components, the method includes the steps of providing a base virtual object oriented data model including abstract components corresponding to system components of the investigated complex system, wherein each abstract component of the base virtual object oriented data model includes parameters and attributes of the respective system component of the investigated complex system; mapping sensor tags of sensors deployed in the investigated complex system and/or event names of events received from the investigated complex system to the parameters of the abstract components of the provided base virtual object oriented data model to generate a dedicated data model for the system type of the investigated complex system; and performing a failure mode and/or a root-cause analysis of the investigated complex system on the basis of the dedicated data model

Abstract: An embodiment relates to a method for processing an input query comprising: building an event processing framework based on the input query by converting operators of the input query into building blocks of the event processing framework.

Abstract: For performing a model-based failure analysis of a complex industrial system including hardware and/or software components each represented by a context independent component model interface terminals and a set of component behavior modes including a normal mode and failure modes of the respective component stated as constraints on deviations, is provided. This method includes generating a system model, SM, of an investigated industrial system by loading component models of the components of said investigated industrial system from a component library and connecting the interface terminals of the loaded component models according to a structure of the investigated industrial system and executing a constraint-based predictive algorithm on a reasoning engine to generate qualitative FMEA results for different operation scenarios, OS, of the investigated industrial system.

Abstract: A method and apparatus for actuating a machine is provided in which a relaxed abduction problem is determined in order to explain the greatest possible part of the observations with the fewest possible assumptions. Based upon two preference orders over a subset of observations and a subset of assumptions, tuples are determined so that the theory together with the subset of assumptions explains the subset of observations. On the basis of the formal validity of the approach certain characteristics of the set of results (such as correctness, completeness, etc.) are checked. By the choice of underlying representational language and the preference relations, the complexity of the problem-solving process is influenced and thus flexibly adapted with regard to domain requirements. The invention may be used for any machines, e.g. gas turbines or steam turbines.

Abstract: The computer device (10) comprises a receiving unit (1) for receiving numerical data (11) and logical data (12) from the technical system (100), a selection unit (2) for selecting a subset (13) of the numerical data (11), a processing unit (3) for processing the subset of the numerical data (11) and the logical data (12) by converting the subset of the numerical data (11) and the logical data (12) into text-based data and by detecting predefined events in the text-based data, a comparison unit (4) for comparing the detected events with predefined queries, wherein the predefined queries describe correlations between detected events, to provide a comparison result, and a signaling unit (5) for outputting a signal (13) based on the provided comparison result. By converting numerical data and logical data into text-based data, correlations within the data can be easily detected based on predefined queries, which are also in text-based form.

Abstract: A control apparatus of an automation system, the control apparatus includers a database adapted to store time series data in a historian data source and adapted to store events derived from the time series data based on event detection rules in an event data source, wherein a semantic data or event query received by the control apparatus is mapped to a corresponding data source of the database to retrieve the queried data or event which are contextualized using an ontological context model of the automation system stored in the database and output by said-control apparatus in a semantic format is provided.

Abstract: A configuration system and method adapted to perform a configuration or reconfiguration of applications run by an automation system, the configuration system including a processing unit adapted to process at least one natural language statement of a user requirement input by a user concerning a control and/or monitoring functionality of the automation system based on a user ontology of the user and/or an automation system ontology of the automation system to generate a formal requirements specification, and a matching unit adapted to match the generated formal requirements specification and formal component specifications read from a component library to derive a configuration deployment including one or several suitable components with configurations fulfilling the input user requirement.

Abstract: A method for making reliable sensor data available and a device for making reliable sensor data of a system available is provided, including the following steps: receiving sensor data from at least one sensor unit that monitors a system component of the system, and processing the received sensor data using at least one stored ontology and a statistical data analysis model for generating the reliable sensor data.

Abstract: A method for automatically generating and processing a number of protocol files of different types of an automation system of a technical plant includes identifying a number of relevant protocol files of different types from the generated protocol files based on at least one protocol parameter, transforming the identified relevant protocol files of different types into relevant standardized protocol files of the same type by using an agent-based software, analyzing and/or processing data sets of the relevant standardized protocol files of the same type, and outputting and/or saving the data sets of the relevant standardized protocol files.

Abstract: A method for automatically processing log files of different types of an automation system, said method determining a message part of a data set of the log file. All contents of the respective data sets of the log files are concatenated. The data sets of all the log files are summarized in a summary file. The data sets of all the log files are chronologically sorted in the summary file. The data sets are compressed in the summary file. The compressed data sets in the summary file are coded. The compressed data sets are assigned to groups with associated group codes. The group code of the assigned group is decoded. The decoded group code is output as the alphanumeric message part of the log file. The alphanumeric message part of the log file is stored in a memory.

Abstract: A computer device for detecting correlations within data received from a technical system is provided. The computer device includes a receiving unit for receiving numerical data from the technical system, a processing unit for processing the numerical data by converting the numerical data into text-based data and by detecting predefined events in the text-based data, a comparison unit for comparing the detected events with predefined queries, wherein the predefined queries describe correlations between detected events, to provide a comparison result, and a signaling unit for outputting a signal based on the provided comparison result. By converting numerical data into text-based data, correlations within the data can be easily detected based on predefined queries, which are also in text-based form. Thus, users without further knowledge of the numerical data can set queries. Further, a technical system including such a computer device and a corresponding method are provided.

Abstract: In a method, system, and storage medium for obtaining system diagnosis, a diagnosis domain is described that includes a number of possible diagnoses, the number of possible diagnoses prioritized based on at least one of a number of confidence levels, a preference function, and a calculation of a relationship between a number of confirmed system symptoms and a number of possible diagnoses. A number of hypotheses for incipient system symptoms is generated, and a hypothesis is selected from the generated number of hypotheses. Information is obtained regarding a number of system observations, and a selection relevant diagnostics for the system is obtained.

Abstract: A method is disclosed for analyzing and/or evaluating at least one event of a technical installation from a plurality of generated log files of an automation system of the technical installation. In at least one embodiment, the method includes determining a number of relevant log files based on at least one log parameter; encoding the relevant log files via at least one associated log code; determining at least one key parameter for the analysis and/or evaluation; identifying multiple relevant log files based on the at least one key parameter from the relevant log files; and grouping the relevant log files into a number of sequences of relevant log files based on the repetition rate of the key parameter in a time window to be analyzed.

Abstract: Disclosed is a method of reviewing a set of rules used for automated monitoring of a technical system for the presence of a problem. The method includes the steps of: selecting a problem in view of which the set of rules is to be reviewed; translating the rules to be reviewed to a knowledge base of formal logical statements; translating the problem to a formal logical problem statement; applying a computer algorithm for checking whether the knowledge base of logical statements together with the logical problem statement is satisfiable; labeling the problems as not being present if the knowledge base of logical statements together with the logical problem statement is satisfiable.

Abstract: According to the invention, a resource, which could optionally be used for a maintenance task of a technical system, is taken into consideration and the possible use thereof is checked even if not all conditions that would be required as per a model description of the resource are met. Thus, a compromise for a resource that comes closest to the sought resource, i.e. is as suitable as possible, can be found in an automated and efficient manner. The invention can be used, for example, for maintenance tasks of large and complex technical systems, for example, in automation technology or production technology.

Abstract: An embodiment relates to a method for processing an input query comprising: building an event processing framework based on the input query by converting operators of the input query into building blocks of the event processing framework.

Abstract: A system, a method and a computer product are disclosed. The method includes using at least one domain ontology including a plurality of domain models connected through mappings to a plurality of data sources, the data sources storing data to be accessed by the query; receiving a query by a query formulation unit; evaluating at least one of a language for defining at least one of the domain models involved in the query, a language of mappings involved in the query and a language of the query and selecting a query answering mode in accordance with results of the evaluation and retrieving an answer meeting at least one query condition from the data sources.

Abstract: Rules of a rule base are transformed in an automated fashion in order to be able to conduct consistency checks and generate explanations and thus classify and correct existing rules. This is beneficial in particular in large systems with existing rule bases, e.g., wherein each rule is associated with at least a diagnostic task of a component of a technical system, e.g., a power system. The task can be subject to fault detection, fault isolation, predictive diagnosis or reporting. The solution presented provides an overview of large sets of rules and thus allows determining which rules are suitable and which are not. The invention is applicable for all kinds of technical systems, e.g., industry and automation systems, in particular power systems.

Abstract: A method for processing a technical system is provided to predict a technical system's state and/or to provide a diagnosis of the technical system or at least one of its components. The prediction is determined based on a model-based complex event processing (CEP) approach using declarative models. This facilitates considering complex information sources as input data and allows providing a diagnosis based on diagnostic models, wherein the models can be interpreted and/or changed even by users who are not programmers. In addition, time and/or temporal relations can be modeled and considered and an open world assumption can be incorporated to allow more valuable assessments of diagnoses. The invention is applicable for all kinds of technical systems, e.g., industry and automation systems comprising in particular rotating devices and/or generators.