摘要:
The invention relates to a method for making reliable sensor data available and a device for making reliable sensor data of a system available, comprising the following steps: receiving (S1) sensor data from at least one sensor unit that monitors a system component of the system, and processing (S2) the received sensor data using at least one stored ontology and a statistical data analysis model for generating the reliable sensor data.
摘要:
Method for monitoring devices in a network, computerized system and application program interface A Method for monitoring devices (2) generating event data items (EDI) comprises: classifying events into meaningful and meaningless events according to a predetermined set of rules; and discarding event data items (EDI) that are classified as meaningless events for generating a reduced set (RDS) of event data items (EDI); and/or counting the event data items (EDI) per event description (DES) for calculating numbers of occurrences (NO), and identifying a top event description having the highest number of occurrence; and/or identifying an interval (TI) where an elevated number of events (ENO) occurs; and/or applying a sequence pattern mining process (SPM) to the set/reduced set of event data items (DS) as a function of the top or target event description and/or the identified time interval for detecting frequently occurring sequences of events; and through an application program interface (6, 10), providing the reduced set of event data items (RDS), the numbers of occurrences (NO), the identified time intervals (TI) and/or the detected frequently occurring sequences of events in response to a request (REQ). An application program interface with analytics functions on event data allows for efficient event data mining.
摘要:
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
摘要:
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.
摘要:
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.
摘要:
In order to enable an efficient abduction even for defective or insufficiently modelled observations, a relaxed abduction problem is proposed in order to explain the greatest possible part of the observations with the fewest possible assumptions. Thus, based upon two preference orders over a subset of observations and a subset of assumptions, tuples can be determined so that the theory together with the subset of assumptions explains the subset of observations. Due to the formulation as multi-criteria optimisation problem it is no longer necessary for assumptions made and observations explained to be offset against one another. On the basis of the formal validity of the approach certain characteristics of the set of results (such as correctness, completeness, etc.) can be checked, which is advantageous particularly in safety-critical applications. By means of 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.