METHOD FOR PROVIDING AT LEAST ONE ITEM OF INFORMATION RELATING TO A HYDRAULIC SYSTEM

Abstract

The invention relates to a method for providing at least one piece of information about a hydraulic apparatus (1), wherein the following stages are performed: Performing a detection (201) of detection values (210) at the apparatus (1), wherein the detection values (210) are specific for measurements at different measuring points and at different apparatus components (120) of the apparatus (1), Performing a transmission (202) of the detected detection values (210) to a processing component (300), Providing an apparatus information (211) about a specification of the apparatus (1) and/or the measurements, wherein providing the apparatus information (211) is performed at the processing component (300) to provide the transmitted detection values (210) with the apparatus information (211).

Claims

1. A method for providing at least one piece of information about a hydraulic apparatus, wherein the following stages are performed: performing a detection of detection values at the apparatus, wherein the detection values are specific for measurements at different measuring points and at different apparatus components of the apparatus, performing a transmission of the detected detection values to a processing component, providing an apparatus information about at least a specification of the apparatus or the measurements, wherein providing of the apparatus information is performed at the processing component to provide the transmitted detection values with the apparatus information.

2. The method according to claim 1, further comprising a subsequent stage of: performing processing of the transmitted detection values by the processing component, the transmitted detection values being compared with one another on the basis of the apparatus information in order to provide a soft sensor system at least for at least one further virtual measuring point of the apparatus or for at least one further apparatus component of the apparatus or for at least one further target variable in the apparatus.

3. The method according to claim 1, wherein the detection values are thereby specific to the measurements, in that the detection values are at least partially detected in the form of measured values by the measurements at least at the different measuring points or the different apparatus components of the apparatus, and in that the detection values are detected at least partially in the form of pre-processed values, at least by processing at least one of the measured values or by processing further measured values, at at least one of the apparatus components of the apparatus.

4. The method according to claim 1, wherein the processing component is configured as a central processing component for centrally providing the transmitted detection values with the apparatus information.

5. The method according to claim 1, wherein the apparatus information and the detection values are merged with each other in a common data structure to couple the measurements with the associated specification.

6. The method according to claim 1, wherein the apparatus information comprises at least one of the following static information about the apparatus: information about at least a structure or a technical configuration of the apparatus, information about at least a structure or a technical configuration of the apparatus components, information about a structural arrangement of the apparatus components with respect to each other in the apparatus, an information about the positions of the measuring points for the individual measurements in the apparatus, wherein the apparatus information is initially provided to the processing component prior to performing the transmission of the detected detection values, in order to evaluate the detection values transmitted at least during the transmission or during further transmissions based on the initially provided apparatus information.

7. The method according to claim 1, wherein the following further stage is carried out: performing processing of the transmitted detection values based on the provided apparatus information by the processing component, wherein as a result of the processing for at least one of the apparatus components at least one target variable is determined by at least a soft sensor system or at least one parameter or at least one operating point.

8. The method according to claim 7, wherein at least the at least one target variable or the at least one parameter is at least one of the following: at least a rotational speed or a flow rate or an inlet pressure or a delivery head or a power or a medium temperature or a result of a vibration analysis of the apparatus component in the form of a pump, at least a stroke position or a flow velocity or a differential pressure ratio or an inlet and outlet pressure or a medium temperature or a device status of the apparatus component in the form of a valve, wherein the at least one operating point is calculated at least on the basis of the at least one target variable or on the basis of the at least one parameter, and wherein an evaluation of the at least one apparatus component is carried out on the basis of the result of the processing.

9. The method of claim 8, wherein the visualization of the result of the evaluation comprises a graphical output for the respective apparatus component, at least on at least one photographic image or live image of the apparatus, the output being positioned in each case on the basis of a position of the apparatus component in the image.

10. The method according to claim 7, wherein the stages of the method are carried out repeatedly, in each case at least the result of the processing or a result of an evaluation of the at least one apparatus component being visualized for a user or the results of the processings being permanently stored centrally.

11. The method according to claim 7, wherein an analysis is carried out during the processing which comprises at least a calculation or estimation of detection values for further, exclusively virtually provided, measuring points of the apparatus.

12. The method according to claim 7, wherein a simulation of the apparatus is carried out on the basis of the result of the processing, at least one change, entered by a user, at least of at least one parameter or at least one operating point being simulated.

13. The method according to claim 7, wherein during the processing, the detection values are at least partially compared with at least one threshold value in order to at least determine an operating state of the at least one apparatus component or to perform an evaluation of the at least one apparatus component.

14. The method according to claim 1, wherein at least during the detection or during the transmission, the detection values are each assigned a time stamp.

15. The method according to claim 1, wherein the transmission comprises at least a wireless data transmission or a transmission via the Internet or a transmission via a mobile network.

16. The method according to claim 1, wherein in the case of the processing component, the following stages are additionally carried out: providing at least further apparatus information on specifications of further apparatuses or further measurements at different measuring points and apparatus components of the further apparatuses, receiving detection values of the further apparatuses, wherein the detection values are specific for the measurements at the different measuring points and apparatus components of the further apparatuses.

17. The method according to claim 1, further comprising a subsequent stage of: performing processing of the transmitted detection values by the processing component, wherein the transmitted detection values are processed together based on the apparatus information to identify at least one open circuit from at least one closed circuit of the apparatus, wherein the apparatus is modeled in the form of a hydraulic apparatus based on the specification and the measurements.

18. A system for providing at least one piece of information about a hydraulic apparatus, comprising: a field component for a detection of detection values at the apparatus, wherein the detection values are specific for measurements at different measuring points and at different apparatus components of the apparatus, and for a transmission of the detected detection values to a processing component, a configuration component for providing at least an apparatus information about a specification of the apparatus or the measurements at the processing component.

19. The system according to claim 18, wherein the apparatus components are each configured as hydraulic components.

20. The system according to claim 18, wherein the apparatus components at least comprise at least one pump or comprise a control valve.

21. The system according to claim 18, wherein the system is operated by a method according to claim 1.

22. A computer-implemented data structure comprising a plurality of detection values and apparatus information, wherein the apparatus information is implemented as information at least about a specification of a hydraulic apparatus with different apparatus components or about a specification of measurements at the apparatus components, wherein the detection values are specific for measurements at measuring points at the apparatus components.

23. The computer-implemented data structure of claim 22, wherein the data structure is used in a method according to claim 1.

24. A computer program comprising instructions that, when the computer program is executed by a processing component, cause the processing component to perform the following stages: at least providing at least one piece of apparatus information about a specification of a hydraulic apparatus or providing measurements at different measuring points and at different apparatus components of the apparatus, receiving detection values of the apparatus, wherein the detection values are specific to the measurements.

25. The computer program of claim 24, wherein the instructions, when the computer program is executed by the processing component, cause the processing component to execute, at least in part, a method according to claim 1.

Description

[0095] Further advantages, features and details of the invention will be apparent from the following description, in which embodiments of the invention are described in detail with reference to the drawings. In this connection, the features mentioned in the claims and in the description may each be essential to the invention individually or in any combination. They are each shown schematically:

[0096] FIG. 1 a representation of method steps/stages of a process according to the invention,

[0097] FIG. 2 a system according to the invention.

[0098] In the following figures, the identical reference signs are used for the same technical features even of different embodiments.

[0099] FIG. 1 schematically visualizes a method according to the invention for providing at least one piece of information about a hydraulic apparatus 1.

[0100] In accordance with a first method step/stage 221, a detection 201 of detection values 210 is performed at the apparatus 1, the detection values 210 being specific for measurements at different measuring points and at different apparatus components 120 of the apparatus 1. According to a second method step/stage 222, a transmission 202 of the detected detection values 210 to a processing component 300 is performed. Furthermore, according to a third method step/stage 223, it is provided that an apparatus information 211 about a specification of the apparatus 1 and/or the measurements and/or virtual measuring points (soft sensors) is provided at the processing component 300 in order to provide the transmitted detection values 210 together with the apparatus information 211.

[0101] FIG. 2 schematically shows a system according to the invention, which, like the method according to the invention, is used to provide at least one piece of information about a hydraulic apparatus 1. At least one field component 140 may be provided for detecting 201 the detection values 210 at the apparatus 1. This may also be understood as collecting the detection values 210. The detection values 210 may have been previously measured as measured values at different measuring points in each case, or may have been determined by processing measured values as pre-processed values, in particular diagnostic values. Further, the field component 140 may serve to perform a transmission 202 of the detected detection values 210 to a processing component 300. A configuration component 150 may further provide apparatus information 211 about a specification of the apparatus 1 and/or the measurements at the processing component 300. This may be done, for example, initially to configure the system according to the invention so that the apparatus information 211 is available for subsequent transmissions of detection values 210 for processing. Furthermore, a coupling component 130 may be provided to combine the apparatus information 211 and the detection values 210 into a common data structure, in particular according to the invention, and/or to store it in a non-volatile manner in a memory component 110 of the processing component 300.

[0102] The processing component 300 can execute a computer program, in particular according to the invention, for processing. It is possible that at least one parameter and/or at least one operating point of the respective apparatus component 120 is determined and/or evaluated by the processing 203 on the basis of the transmitted detection values 210 and in particular on the basis of the apparatus information 211. It is further possible that the detection values 210 and/or the operating points are evaluated in this case by means of algorithms. For example, in the case of an apparatus component 120 in the form of a pump, the parameter rotational speed and/or flow rate and/or inlet pressure (NPSH) and/or delivery head and/or power and/or medium temperature and/or vibration analysis can be determined and/or evaluated. Furthermore, for an apparatus component 120 in the form of a valve, the parameter stroke position and/or flow velocity and/or differential pressure ratio and/or inlet and outlet pressure and/or medium temperature and/or device status can be determined and/or evaluated. A result of this evaluation can be, for example, a status of the apparatus component.

[0103] For each apparatus component, the evaluation results of the aforementioned evaluation can be output as status messages during visualization, if necessary. For example, different displays can be provided in the visualization for the status diagnosis off, no abnormalities, near specification limit, out of specification, maintenance required, function check and failure. The respective evaluation can also be described in more detail in a message text, and/or possible causes and suitable remedial options or recommendations for action can also be shown.

[0104] Based on the evaluations, the apparatus 1 as a whole can also be further analyzed as an overall hydraulic system. For example, the analysis of the processing component 300 can be used to determine relationships between the apparatus components 120 or their operating points, and thus the respective load, and/or to determine potential energy savings based on the electrical and hydraulic powers introduced into the system and the hydraulic powers dissipated in the passive elements. Alternatively or additionally, the analysis can be performed with regard to the actuating value reserve. The actuating value reserve is the bandwidth in which the component operating points can still be adjusted in the direction of a better or optimized operating point. The manipulated variables for this can be the rotational speed of the pump(s) and the stroke position(s) of the control valve(s). Another possibility is to carry out the analysis with regard to the component configuration or size/type and mode of operation, and/or to optimize control circuits of the apparatus 1 and/or to carry out a referencing and plausibility check of operating and diagnostic data. In this way, optimization potentials can be made transparent across the system with regard to load reduction, energy savings and/or control performance.

[0105] The apparatus 1 shown in FIG. 2 can be configured as an open hydraulic circuit. By way of example, the apparatus 1 may comprise as apparatus component 120 a rotational speed-controlled centrifugal pump 120 and several, e.g. eight, downstream control valves 120 of different sizes. The structure shown in FIG. 2 is purely exemplary and serves only to represent further possible structures. The specific structure is indicated as static information by the apparatus information 211.

[0106] The centrifugal pump 120 is connected upstream of the parallel-connected control valves 120 as a hydraulically active apparatus component 120. It may be a problem in monitoring the apparatus 1 that detection values 210 for the apparatus components 120 are only incompletely available. For example, in order to determine the operating points of the aforementioned apparatus components 120, it may be necessary to determine the inlet and outlet pressures, the associated flow, and the medium temperature in each case, whereby the detection values 120 for these variables are not available from measurements on the apparatus components 120. These unknown quantities can therefore be determined, even without being directly measured, in the processing component 300. In this way, it is possible to nevertheless determine the operating points. In this context, it is also possible to speak of the use of a soft sensor system.

[0107] For the determination of the unknown variables, and the calculation of the corresponding unavailable detection values 210, it may be provided that other available detection values 210 of the hydraulic apparatus 1, in particular of other apparatus components 120, are used.

[0108] These detection values 210 may, for example, result from a pressure measurement and/or a flow measurement and/or a temperature measurement and/or a determination of a pump rotational speed and/or a determination of a valve position. For the calculation, these detection values 210 can then be processed with the apparatus information 211 to calculate the unavailable detection values 210 as virtual values. Such calculated values are also referred to as soft sensor system values. In the method according to the invention, the calculation of the virtual values may be performed entirely within the processing 203. The calculated values can subsequently be stored, brought to display and/or fed to an evaluation logic. Thus, the operational data of the apparatus components 120 is completed, and can now be compared to the associated configuration data of the individual apparatus components 120. This comparison may be performed as part of the evaluation logic, and may be correspondingly linked to an evaluation system. The results of the evaluation can also be stored and displayed in parallel to the user, for example as a color-coded display traffic light, i.e. by a traffic light function.

[0109] The foregoing description of the embodiments describes the present invention exclusively in the context of examples. Of course, individual features of the embodiments may be freely combined with one another, provided that this is technically expedient, without departing from the scope of the present invention.

LIST OF REFERENCE SIGNS

[0110] 1 Apparatus [0111] 110 Memory component [0112] 120 Apparatus components [0113] 130 Coupling component [0114] 140 Field component [0115] 150 Configuration component [0116] 201 Detection [0117] 202 Transmission [0118] 203 Processing [0119] 210 Detection values [0120] 211 Apparatus Information [0121] 300 Processing component [0122] 221-223 Method steps/stages