WO1999054698A2 - System and method for configuring and conducting test processes - Google Patents

System and method for configuring and conducting test processes

Info

Publication number
WO1999054698A2
WO1999054698A2 PCT/DE1999/001113 DE9901113W WO9954698A2 WO 1999054698 A2 WO1999054698 A2 WO 1999054698A2 DE 9901113 W DE9901113 W DE 9901113W WO 9954698 A2 WO9954698 A2 WO 9954698A2
Authority
WO
Grant status
Application
Patent type
Prior art keywords
hardware
acute
system
configuration
test
Prior art date
Application number
PCT/DE1999/001113
Other languages
German (de)
French (fr)
Other versions
WO1999054698A3 (en )
Inventor
Doris Hartmann
Sofiane Kacem
Rolf Krämer
Karl-Heinz Maier
Nicolai Plewinski
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS
    • G01V1/00Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/28Processing seismic data, e.g. analysis, for interpretation, for correction
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01HMEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H1/00Measuring characteristics of vibrations in solids by using direct conduction to the detector
    • G01H1/12Measuring characteristics of vibrations in solids by using direct conduction to the detector of longitudinal or not specified vibrations
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00Arrangements for displaying electric variables or waveforms
    • G01R13/20Cathode-ray oscilloscopes ; Oscilloscopes using other screens than CRT's, e.g. LCD's
    • G01R13/22Circuits therefor
    • G01R13/28Circuits for simultaneous or sequential presentation of more than one variable
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00Arrangements for displaying electric variables or waveforms
    • G01R13/20Cathode-ray oscilloscopes ; Oscilloscopes using other screens than CRT's, e.g. LCD's
    • G01R13/22Circuits therefor
    • G01R13/30Circuits for inserting reference markers, e.g. for timing, for calibrating, for frequency marking

Abstract

The invention relates to a system and a method for configuring and conducting test processes. The system consists of a hardware catalog (2), in which hardware objects (2a ... 2d) relevant to the system are stored as representation of real hardware components (e.g. calibrators, sensors, signal conditioners, signal detection modules, actuators) in addition to a executable objects (3a ... 3d) (e.g. signal detection and processing, display, filing) for configuring and/or testing a measuring structure formed on the basis of the hardware objects and/or the executable objects. The hardware objects (2a ... 2d) and the executable objects (3a ... 3d) have at least one predetermined interface (17 ... 21) for interconnecting the hardware objects (2a ... 2d) and/or the executable objects (3a ... 3d). By representing the measuring hardware components and control algorithms as software objects, a testing tool is obtained which can be fully and continuously used for configuring. Due to the fact that the configuring data can be immediately used and executed, the hardware objects and the signal processing method can be interconnected or flexibly changed. The otherwise required compilation is no longer necessary thereby enabling easy adaptation of test processes.

Description

description

System and method for planning and carrying out of test sequences

The invention relates to a system and a method for configuring and implementing Prüfablaufen.

Such a test system and test method comes beispiels-, in the area of ​​signal detection and signal evaluation are used. Here is often to combine a mixture of measurement hardware and signal processing software together with the knowledge and experience of specialists are often required due to the complexity of the relationships of such a test system.

WO 98/01728 a device for recording analogue test signals for acoustic diagnosis of test objects is known. Here analog of a device under test measurement signals can be recorded with the help of vibration sensors. A computer is equipped with a standard interface card, which is used for digitizing the measurement signals. A switching signal is used to generate a trigger signal, which is input via a preferably serial interface. A control program in the computer switched on by the trigger signal input of measurement signals on and off.

The invention has the object of providing a system and a method for planning and performing test sequence run indicate that can be configured in a simple manner by means of a data processing apparatus, processed, and executed.

This object is achieved by a system for planning and execution of test sequences with a hardware catalog, are stored in the relevant for the system hardware objects in the image of actual hardware components, and with PrüfablaufObjekten as an image signal processing algorithms and a processing device for the interconnection of the hardware objects and PrüfablaufObjekte to a test set and performing the Prüfablaufe, wherein the hardware objects and the PrüfablaufObjekte have at least one predetermined interface, which is provided for interconnection of the hardware objects and / or the PrüfablaufObjekte.

This object is achieved by a method for configuring and implementing Prüfablaufen are stored in the relevant in a hardware catalog for the system hardware objects as an image of real hardware components and PrüfablaufObjekte as an image signal processing algorithms, wherein the hardware objects and the PrüfablaufObjekte be interconnected to a test set and wherein the test sequence over a predefined interface of the hardware objects and PrüfablaufObjekte is performed with associated functions.

The user can be interconnected to create a project without previous expertise from the hardware catalog required for the testing process hardware components together and configure the hardware configuration and possibly also alter. Similarly, the test sequence is configured by the interconnection PrüfablaufObjekte and interconnected with each other and with the hardware structure with the aid of the same system. Such a generated test set is immediately usable, since the hardware objects and the PrüfablaufObjekte are connected functionally to one another via the predetermined interface. This eliminates a costly compilation of configuration data. Also, changes in the test set are both in terms of the hardware structure and in terms of the test procedure without difficulty feasible. The testing system and the testing procedure can be projected continuously and completely with a single tool. Due to the operational capability of the configuration information also changes to the test procedure are immediately verifiable, testable, which brings much shorter development times with them. Because the PrüfablaufObjekte, that is, the signal processing and present -auswertungsalgorithmen as data objects can the functionality of the test system are dynamically and easily adapted to the requirements of Prüfaufgäbe by simply adding new data objects. By mapping the hardware components of the test algorithms and hardware objects and Prüfablaufobjekten, ie tenobjekten to DA, the test system is given an enormous flexibility. New components can be added easily and are available to the system immediately for configuration available. This allows the test sequence of the respective Prüfaufgäbe can be adapted optimally without every time is to create a new inspection system.

Because the hardware objects and the PrüfablaufObjekte are formed as data objects, all of the projection can been accredited and test applications within a system in the same manner are processed. As data objects in particular so-called OLE objects (Object Linking and Embedding), who have won in the PC software from Microsoft in recent years are important. Compiled from the OLE objects test sequence is oh- ne additional compilation run immediately. In addition, new objects can be easily added.

A safe and reliable execution of a test sequence for less experienced user is ensured that the hardware objects and the PrüfablaufObjekte have a first interface to the configuration of the hardware objects and PrüfablaufObjekte and a second interface for an automatic mode, wherein in the automatic mode, a control device for execution and synchronization the test procedure is provided. Because the hardware objects and the PrüfablaufObjekte

comprise information data to its function, a configured test sequence can be used immediately after a change, and must not be compiled only.

As a advantageous application of the system has been shown that the system is provided for detection and evaluation of vibro-acoustic, technical characteristics of technical objects, in particular of electric motors.

A simple calibration of the system can take place in that in a calibration step, a comparison of an input signal of a hardware component, in particular a sensor with a predetermined normal value and variable factors of a hardware component or a PrüfablaufObjekts be adapted to a predeterminable tolerance value in a calibration step.

In the following the invention is described in detail with reference to the embodiment illustrated in the figures embodiment and discloses.

Show it:

1 shows a schematic representation of an exemplary embodiment of a configuration and test system,

FIG 2 is an exemplary view of a hardware catalog with hardware objects in the image of real hardware components of an engineering and inspection system

3 shows a view of an example of a configured test system,

4 shows an overview of the hardware configuration of an acoustic configuration and test system, a schematic representation of the coarse flow an acoustic configuration and test system,

a schematic diagram of the architecture of an acute stischen test system,

a schematic representation of the interfaces of a core object,

a block diagram of the technique for embedding in the modular engineering system,

exemplary first input masks to select the name and Abspeicherpfades for project planning of a new device under test (new acute-project),

exemplary second input masks for planning a new test object with a corresponding measurement arrangement (acute project mask)

exemplary third input masks for further configuration of a new test specimen with a corresponding measuring arrangement (Assistentenuntersützte configurations - modular selection),

exemplary fourth entry screens for configuring the technical characteristics of the device under test (Prüflingsbeschreibung)

fifth exemplary input screens for the selection of acoustic sensors for the test specimen (assistant proposals for sensors), sixth exemplary input screen for inputting new acoustic sensors ((insertion of sensors),

seventh exemplary input screens to display the technical characteristics (acoustic sensors New sensor (choice from the HW catalog)

eighth exemplary input screen for the start of an acoustic examination (sample receptacle (receptacle typical specimens)),

ninth exemplary input screens for observing an acoustic check (New recording),

tenth exemplary input screens showing the result of an acoustic examination (recording mask (representation of the recorded signals)),

eleventh exemplary input screens for selecting and

Configuring the acoustic analysis procedure for analyzing the result of an acoustic test (determination of the evaluation (Analyseka- ducts, inspection)),

(Set thresholds for testing HARACTERISTICS) twelfth exemplary input screens for further configuring the acoustic analysis method)

exemplary thirteenth input masks for generating the parameters for an automatic acoustic examination (parameterization of the automatic mode (test specifications generate)), and FIG 22 exemplary fourteenth input screens for displaying the technical characteristics of sensors (acute

Hardware Catalog Manager (HW editor)).

Fig. 1 shows a schematic principle illustration of a process jektierungs- and testing system 1. The configuration and

Test system 1 has a hardware catalog 2, are stored in the hardware objects 2a..2d. In addition, another object catalog 3 is provided, stored in the PrüfablaufObjekte 3a..3d. The hardware objects 2a..2d point interfaces 17,18, the Prüfablaufobjekte 3a..3d interfaces 19, 20, 21. The inspection system 1 also includes a processing device 4 with a first processing portion 4a determining analysis method, with a third partial processing portion 4c for a so-called automatic mode and having a fourth partial processing portion 4d 22 for a calibration of the test system with the aid of the processing device 4 may be a done accessing the hardware catalog 2 and the objects catalog. 3

The processing device 4 is used to configure a test setup 5, which is configured of hardware objects 2 and from Prüfablaufobkjekten. 3 By the numeral 5, such an exemplary test setup is indicated. The test arrangement 5 consists of a hardware structure of 5a as well as a test equential 5b. The hardware configuration includes 5a 2a..2f hardware objects. The starting point of the hardware structure 5a is a test piece 2a, for example a motor. The examinee 2a 2b sensors, 2c, 2d connected downstream, which are arranged in parallel. The outputs of the sensors 2b, 2c, 2d are connected to the inputs of a signal conditioning 2e, the signal acquisition modules 2d, 2e are in turn connected downstream. The outputs of the signal acquisition module 2f, 2g, simultaneously form the outputs of the hardware structure 5a are connected to the inputs of the Prüfablaufaufbaus. The Prüfablaufaufbau 5b contains 3e a fast Fourier transform 3a, a central value calculating 3c, a variance calculation 3d, a kurtosis determination 3b as well as a cepstrum determination in the example shown in Fig. 1 example. The output signals of the thus determined Prüfablaufkomponenten 3c, 3d, 3e are forwarded together on a classifier 3f.

The system shown in Fig. 1 for the configuration and execution of test sequences illustrates the basic structure of the integral measurement hardware and the test sequence. The measurement hardware is then configured using the processing device 4 from the hardware catalog 2 of the hardware objects 2a..2d, during the test sequence, ie the signal-processing evaluation algorithms of catalog 3 PrüfablaufObjekte 3a..3d is assembled. The processing device 4 is used in addition to the processing and execution of the measurement setup. 5

The special feature of the inspection system 1 shown in Fig. 1 in that both the hardware and the software for the testing system with the help of the processing apparatus 4 can be configured. The mapping of the Meßhardwarekomponenten and test algorithms to data processing objects opens the system enormous flexibility. Both Meßhardwarekomponenten as Prüfablaufobjekte also can be easily added and are immediately available project. The test sequence can thereby adjust the Prüfaufg be without each a completely new testing system must be created. The complete integration of the test system within a data processing system an integral test system which can be used singly occupied by non-specialists arises. In addition to the configuration of the test system is also possible to integrate the documentation of the inspection system in electronic form within the data processing system.

Fig. 2 shows a screen 14, on the first in a

The screen 12 is a hardware catalog 2 of an acoustic test system is exemplified. The hardware catalog 2 includes a plurality of hardware objects in the form of sensors, signal conditioning, signal detection modules, as well as calibrators. The hardware objects "sensors" are divided into airborne sound sensors and acoustic emission sensors, which in turn are associated with different types.

The hardware catalog shown in FIG. 2 forms the basis for planning a hardware configuration of an acoustic inspection system, as has been shown, for example in connection with FIG. 1 and explained. As seen in Fig. 2 of the hardware catalog of the test system contains in addition to the hardware objects of the hardware catalog 2 itself also a documentation for the individual hardware objects.

Fig. 3 shows an example of a fully configured Meßhardwareaufbaus an acoustic inspection system. The configured hardware of the test system is shown in a screen area 7 and is called "signal detection Hardware". In the area of ​​the screen 7, the individual Hardwa- are reobjekte this signal acquisition hardware in the form of sensors, signal conditioning, signal detection module and capital librator specified. The in Fig. view shown 3 also contains menu and icon bars 9, 10, 11, which enable the user to navigate within the test system. in the right Bildschirbereich 8, the hardware properties of the sensors that are specifically highlighted in the left pane by an arrow 15, again explicitly specified as a noise sensor and airborne sound sensor.

4 shows an overview of the hardware configuration of acoustic engineering and testing system. The hardware configuration consists of a computer 22 with a digital signal detection means 27. The digital Signalerfas- sunsgvorrichtung 27 has analog / digital converter 28 and digital / analog converter 29, the agent with a Signalkonditionie- 23 are coupled. With the Signalkonditionie- approximately 23 convey one body sound sensor 26 and an air-borne sound sensor 25 can be coupled. With the digital signal detector 27, a speaker and / or headphones 24 as well as the airborne sound sensor 25 is connected. The speaker 24 is coupled to an analog / digital converter 28 and the airborne sound sensor with a digital / analog converter. Next, reference numeral 30 denotes a digital interface as the input / output, with the reference numeral 31, a decoupling device for the computer 22 and in a process control with the reference numeral 32nd

. The testing system shown in Figure 4 is used for vibro-acoustic testing of devices under test, such as engines, taking into account the following customer requirements:

• minimize production costs, • control quality efficient processes,

• high quality and environmental acceptability of the finished products,

• high uniformity of the production in all process stages and

• increased availability of equipment

The system shown in Fig. 4 provides a powerful diagnostic system for the sound and vibration analysis for automated quality control and production monitoring represents the system allows acoustic time signals, such as sound, vibration, etc. manually added or automatically, processed and. can be archived. The system is, screen able to detect possible errors of the test object based on the detected signals from the DUT and a previous image or configuration error messages via PC interface output and store. Previous systems can be operated only by highly qualified professionals (test engineer). By using wizard techniques, the newly entwik- kelnde system of technologists should be adjustable. profound

Knowledge of measurement technique is then not required.

The product structure of the acoustic testing and project planning system, which is also referred to as acute system, the following looks reasonably: The software portion of the system consists of the acute ACUTE-based system and the so-called engineering construction kit. ACUTE is a system for automatic sound test. It can be used both in the production of parts for square litatskontrolle and in the monitoring of machines in operation. To this end, the sound signals are automatically detected and analyzed using pattern recognition algorithms and classified. The acute system is involved in the process and communicates DES half with an automation system. The acute-based system controls the automatic test mode and allows the user the configuration, calibration and adjustment of the system. With the help of technology building blocks, the user is able to project with the assistance of a wizard, which includes technology-specific knowledge to perform. The user can accept or reject the proposals of the wizard.

Fig. 5 provides an overview of the overall structure of the acute system. The acute system can be roughly divided into the parts

ACUTE-based system and technology modular divide. The acute base system includes all the components that make it possible to configure a system for acute acoustic score of specimens of a particular type, to calibrate / adjust and operate. The basic system can be expanded through technology kits to a wizard-assisted system. The ACUTE-based system consists of

• automatic mode that controls the acquisition and evaluation of the time signals in the test, • acute configuration, the tration the configuration and parameter allows an acute system.

• the calibration / adjustment, which allows a comparison of the detected at the end of the electrode sizes with a standard (calibration) and to the user the setting of calibration constants allows (adjustment),

• the acute-core which contains all components for signal acquisition and analysis.

In an acute system can be only one component to be active on the components of automatic operation, configuration and calibration / adjustment. The activation of the individual components is possible only to authorized users. Designing an acute system can either exclusively with the acute-base system (so-called. "Manual" configuration) or assistant assisted by adding a suitable technique kit done. However, a successful Manual configuration sets the user requires knowledge of the technological and metrological relationships. In the wizard-assisted project, the wizard provides the user with appropriate proposals, which he derived from his technological and metrological knowledge. it varies authorized in acute-system users can be defined. the mechanisms for identifying the user specified in the design documents.

The art kit provides the following components ready:

• Capture Prüflingsbeschreibung: Captures all technological user data in the dialog with the user, describing the structure and acoustics relevant properties of the objects to be scanned (eg electric motors).

• Wizard: supports the user in configuring an acute project by evaluating the technological user data. Based on its internal knowledge he offers the user the one proposed for the configuration and parameterization of hardware and software components of a

ACUTE project and supports the other in technological interpretation of his recorded Zeitsi- gnale.

In addition, a technology kit "electric motors" are provided.

Functional acute core can be divided into the following components are divided: / -wiedergäbe signal acquisition, signal processing, feature extraction, classification, visualization and archiving AS communication (= communication with the automation system)

The component signal acquisition / -wiedergäbe is responsible for recording and playback of the sensor signals. Depending on the recording hardware several channels can be simultaneously detected. The signal acquisition represents for each recorded channel supply recording data for further processing Verfü-. The recorded signals can be further processed in various ways (= signal processing). So are methods available to transform or the recorded time signal to the frequency domain to filter data in time or frequency domain. It can be cascaded processing methods more Signalverarbei- as long as the

Result data of the predecessor can be used as input data.

Under feature extraction refers to the calculation of property values. A feature is defined by a subset of the result data of the signal processing, as well as a calculation rule. In this calculation rule various statistical functions can be used (such as mean, variance, etc.) and (arithmetic) are combined. Results-nis feature extraction is a scalar value. The (threshold) classifier using the calculated feature values ​​in order to classify based on feature-specific thresholds, which are specified in the test specification the test piece measured in error classes defined. Are all noticeably times values ​​within their thresholds, the specimen is rated as good. In addition to the Schwellwertklassifikator other classifiers are conceivable. For the presentation of data, this component is responsible. The data to be displayed such as Signalverarbei- delivered from the other components, processing or classification. The user has the opportunity to highlight areas during the acute configuration and can be output current (metrology) values ​​(time, frequency, amplitude) at the cursor position on the screen.

The archiving takes over the storage of measured values ​​and evaluation results on the fly. Here ACUTE project for each can be parameterized which items should be logged. The communication component is responsible for communication with the connected automation system AS. Here, a function module must be active on the AS-side, supports the protocol with the acute computer. Other types of AS communication are possible in principle (eg MPI or via Object Engine.)

Another of the acute-based system is the automatic mode. The automatic operation requires a test specification which produces the acute configuration. In the test specification is defined which objects are parameters with which to perform in what order. The flow can be stopped by a communication signal from the AS or by the operator.

Calibration is the process of comparing the Prüfmit- means of a Normal. It is a prerequisite for the use of test equipment. When adjusting internal amplification factors are adjusted so that the deviation in the calibration is less than a certain tolerance value. Adjusting and calibrating covers the entire electrode, particularly but sondere the sensor. Both processes'll have carried out at least during commissioning. This affects the measurement chain including sensors / microphones, signal conditioning, sound card, computer.

Each use of an acute-system for the valuation of certain samples is described by an acute project that is created on the acute-configuration. The ACUTE project engineering offers

• the configuration of all hardware components of the test setup superstructure

• talog selecting the appropriate hardware products from a Hardwareka

Software components • the selection and parameterization of all for the signal acquisition, signal processing and the subsequent evaluation (Features / classifier) ​​required.

For each acute project an acute configuration is generated and stored on the configuration that contains all the descriptive data of a particular project. Based on the acute-configuration, the project created a so-called spec. Test that describes the testing process and contains all the information necessary for the exercise. According to this test specification time signals are in automatic mode detects evaluated and classified.

both acute new projects can be created on the Projektiervorgang than be modified existing ones. The ACUTE configuration comprises the following configuration steps

1. Hardware Configuration

2. Record / Capture typical specimens third configuration of the analytical method

4. Definition feature

5. Setting of the classifier

6. parameterization of the automatic mode

The individual configuration steps are described below. For a graphic illustration of the functionality of the wizard-assisted ACUTE configuration using the technique modular system for permanent magnet DC motors, a Oberflächendemonstrator was developed.

In the first Projektierschritt, the hardware configuration must for ACUTE project the hardware sensors

be configured signal conditioning, acquisition board and PC (see Fig. 2-4.). For each type of hardware (sensor, signal conditioning, acquisition module, PC) ER the hardware configuration enables the operations' new

Hardware produce "," Changing Properties "and" Hardware delete ". When creating a new hardware device, the new hardware component of the acute-configuration is provided with a unique symbolic name that can be changed by the user. The selection of the real hardware product, to associate with the new hardware component via the hardware catalog. the hardware component may vary according to hardware version circuit options (transmitter sorting Signalkonditionierung- Erfassungsbaugruppe-> PC) to be connected to any existing hardware components the selection of real hardware product can be changed. . Likewise adjustable hardware properties can be (eg gain signal conditioning), modified. with a hardware component all related Hardwareverschaltungen are always deleted.

For each sensor a hardware channel is created, which describes the path of a recorded time of this sensor signal by the interconnected hardware components. The user can view the interconnections of the individual channels. All configuration data generated during the hardware configuration are stored in the ACUTE configuration. In the manual configuration of the hardware (ie without technology kit) the user must determine the appropriate test piece for its hardware components from the hardware catalog independently and match.

To save configuration overhead, an existing project can be copied to a new one. Then the irrelevant Projektierteile can be changed individually. of course, the hardware catalog of the acute-base system contains only a selection of common, generally suitable for an acute system hardware components. Therefore, the user has the

Opportunity to bring him desired hardware components through an editor in the hardware catalog (see section 3.5). Only components are included in the hardware catalog, for which a proof of delivery is available.

The second Projektierschritt is: Record / Capture typical specimens. As a basis for the subsequent establishment of evaluation criteria, the time signals typical specimens are taken. To obtain comparable images, all images with the same, to be determined by the user, carried out on ahmed furious. Each recording of a typical

DUT must and provided by the user with a unique identification assigned to an error class. This assignment can also afterwards (z. B. performed after recording all samples and are changed. The user has the ability to define new classes of errors. Each recorded signal is visualized, wherein both the displayed channel as well as the manner of presentation ( time signal, FFT (Fast Fourier transform) or FFT spectrogram can be adjusted by the user with default settings). the user can display previously recorded signals again or delete it. Alternatively, as wave also the possibility of already stored images ( - einzuspielen files).

3. When Projektierschritt, the configuration of the analysis methods, the user can (in parallel and / or serially connected) evaluation define one or more for each hardware channel or sensor. A separate analysis channel is created for each evaluation, the (unique) name is specified by the user. In addition, the user must the origin of the signal analysis for each new channel (channel hardware / sensor), and to specify the analysis method with which the timing signal is to be processed (for example, FFT spectrogram). It can also be connected in series several methods (eg, filter, FFT). The methods of analysis are to be selected so that they form a suitable basis for the subsequent definition of the characteristics (see the next section). The user can apply a set analysis method to the recordings of his typical samples and let the result displayed graphically. All configuration data generated during the configuration of the analytical methods are stored in the ACUTE configuration.

In the 4th Projektierschritt, the characteristic definition, VOIM users can for each analysis channel can be set by the user one or more features. Each feature has to be defined so that a calculation result of a simple numerical value is provided (for example, sum of energies in a certain frequency range). On the definition of emerging lenwerten for a particular trait can then be performed to classify the samples. The definition of a feature system carries out graphically on the display of the signal analyzed a typical test specimen: The user selected with the mouse a specific area within its spectrum and selects from the pool of all possible functions Prüfelemente- one (or several cascaded) from. He can then be graphically show toggle the data on all of its typical samples for this feature. All configuration data generated during the feature definition are stored in the ACUTE configuration.

In the 5th Projektierschritt "Setting the classifier, the user can calculate a defined characteristic for all aufgenom- mener samples and the results can be displayed graphically (histogram) (Figure 12). The samples are sorted according to error classes and visually distinguished. The user can recognize as good, if a feature for specimens of a particular error class nisse delivers significant results-. For each shown in the graph feature value, the user can let display the corresponding record or associated Prüflingseigenschaften. About mouse operation, the user can (with respect to. The error class) in the image of a lower and an upper threshold value for a good / bad classification define the test samples.

Where, for an error class several parameters defined, they will be linked for a good / bad classification OR. An overall quality of a device under test determined that if and provides the result "good" if the candidate was in respect of all classes of errors as good. The set for a particular trait thresholds are stored in the acute-configuration. The classifier is true in automatic mode his decision with the help of these thresholds.

To control the automatic operation, a so-called. Test specification is created from project orientation, which describes the test sequence. The preparation of the test specification is done automatically based on the information stored in the configuration ACUTE configuration data. The individual steps of the generated test sequence lists the user.

capture Prüflingsbeschreibung: Designing with assistant assumes that with the acute project to be diagnosed samples (eg electric motor) are described from a technological point of view in the first step. This is done via the component Prüflingsbeschreibung grasp of tech nikbaukastens that requests any necessary data from the user on the basis of their knowledge of the basic structure of an object of its technology. Based on this technological user data, the wizard can derive suggestions for the user and added support this when interpreting its signals along with its (technological and metrological) assistant knowledge.

The wizard supports the user in configuring an acute project by Assistant proposals in the following design steps:

• Hardware Configuration

• Recording typical specimens

• Configuration of analysis methods • Characteristic Definition In each of these configuration steps the wizard provides the user on demand Projektiervorschlag he (technological user data) derives from his assistant knowledge and the description of the device under test. Each wizard proposal can be accepted by the user, modified or rejected. Alternatively, users can also make their own Projektiervorgaben continue. In the modification of an assistant proposal is to note the following of: a user wants to modify an assistant proposal, so he gets to directly select only offered those elements whose properties are compliant with the assistant proposal (eg components from the hardware catalog). However, he has the option to select other items on request. With this selection, it is, however, contradict the assistant proposal. This has the following consequences:

• The user receives a warning that his selection can lead to inconsistencies.

• For further configuration, the selection of the user is used as a basis for further assistant proposals. This may mean that the wizard suggest only a limited set of advantages or no longer can make.

• User-selected configuration can lead to impairment of the automatic mode or the Prüflingsbewertung.

The user has the option to own hardware components to identify an editor in the HW catalog and these also contribute there, if they are not included in the present HW catalog. The marked hardware components are given preferential treatment under the Assistant proposals.

The wizard supports the user also tsignale in the interpretation of the analyzed Zei. By its technological and technical measurement knowledge and specified by the user technological description parameters of the test object, it can determine the technological significance of predetermined parameters (for example, frequencies), and display to the user. For example, the user selected with the mouse in egg nem FFT spectrogram a certain frequency range and receives the assistant information that a certain multiple of the frequency of lamella is in this area, for example.

The data for the HW catalog is no egg genständige component, but merely the description of specific, particularly suitable for the technology of the art modular hardware products.

Fig. 5 shows the overall flow of the system as a coarse adjustment ACUTE run. The overall flow of the acute system is reflected on the surface again. After the start 43 of the acute-system, the user must open an existing acute or project 45 create a new project 45 in the first step 44th In order for the project-specific acute-configuration is loaded 45 and creates a new one. Then the user can select the desired mode 46,49,55, and for a new project just selecting configuring operation is possible 46.49. the user terminates the selected mode, it can then either select a different mode, or by step 58 close the acute project 45th In the initialisation of the automatic mode, the executable properties of the acute-core are indicated in the test specification produced initialized and in its execution sequence linked. 53 is started by selecting the operation step 52, the automatic mode, the objects are in their

brought order for execution, wherein a plurality of objects can be processed in parallel (for example, for each channel an FFT computation). After the sequence control is started, the acute-core objects are executed in the order of the test sequence. The test sequence can either be carried out once or in a loop.

If the user by performing the operation step the calibration and adjustment operation 56, he must first enter its name (identification) 55th The user can select the used by him in the hardware catalog from a list of standard normal. It can expand this list to its own standards with the properties name, standard value and frequency range. After selecting a normal, he will be asked the standard to be attached to a sensor. then using the keyboard it will start recording (recording time 2s). The recorded signal, the user's name, the date and time and the, the standard value assigned, measured value is stored. The measured value is output together with the percentage deviation on the screen. Calibration is completed in the operation step 57 with it. In addition, the user has to be calculated (by clicking) a new gain the option of normalized the electrode that with the same recording the displayed value is equal to the standard value. After acknowledging this gain is included in the acute-Conf iguration.

In configuring operation 47,49 both new ACUTE projects can be created as be modified existing ones. The ACUTE configuration includes the configuration steps already listed. When creating a new project, the acute individual configuration steps must be performed one after the other. After each Projektierschritt both an interruption of Projektierlaufes and spring back in an already performed is Projektierschritt al lerdings possible.

In the configuration without assistants 47 (step 46) are provided in each Projektierschritt the user via the user interface operations are available through which it create a new ACUTE configuration and display existing or manipulate. The flow within a projection animal step results from the selection and sequence of the individual selected by the user operations. All configuration data within a Projektierschrittes newly created or modified are stored in the acute configuration.

The activated by the step 49 assistant assisted configuration 50 is possible in the following design steps:

• Hardware Configuration • Recording typical specimens

• Configuration of analysis methods

• Feature Definition

In the wizard-assisted project 50, both the components of the acute-configuration of the base system and the engineering construction kit are active.

For all be specified as part of the hardware configuration hardware components (sensor signal conditioning, Erfas- sungsbaugruppe, PC) can the user can make a wizard proposal. The proposal of the sensors is derived from the technological properties of the specimen, all other hardware components must be matched to the selected sensors. Each Assistentenvor- impact can be taken by the user, modified or rejected. the user can just as independent hardware components are configured.

All configuration data generated during the hardware configuration are stored in the ACUTE configuration. The wizard supports the user with the proposal of error classes for which appropriate features can be proposed at a later stage of the project. The user must have the recordings of his typical samples, corresponding to the respective error classes, assign these. The user can of course also add your own error classes.

As part of the configuration of the analysis method, the user can be put forward by the wizard for the evaluation of the individual hardware channels appropriate proposals derived this from the technological description of the device under test and the characteristics of the channel. The user can take the individual proposed analysis channels, modify (eg set other window function for the FFT) or reject it. In the wizard-assisted project, of course, all the services described under the acute-base system are also still available. All configuration data generated during the configuration of the analytical methods are stored in the ACUTE configuration.

In the wizard-assisted project 47, the user can be suggested by the wizard for a particular Analyseka- nal features. Each proposal is allocated to one of the already proposed by the wizard error classes. The user can accept the proposed single features (eg greater frequency range select), modify or reject it. In the assistentenunterstütz- th project of course all the services described under the acute-base system are also still available. All configuration data generated during the configuration of the analytical methods are stored in the ACUTE configuration.

The hardware catalog (short HW catalog) includes the description of a selection of which can be used for acute hardware type sensor, signal conditioning, digital acquisition board, PC and calibrator. The contents of the hardware catalog forms the basis for the selection of hardware products within the (manual and assistant supported) Hardwareproj ektierung.

The project-specific data are created by the configuration of each ACUTE project and include the technological see description of the device under test (only for assistant supported configuration) and the entire configuration of an acute project.

Technological user data describe the look technological structure of the objects to be tested in an acute project, such as electric motors. They are part of the engineering construction kit, the structure of this data is technology dependent. The technological user data are "capture Prüflingsbeschreibung" of the component detected by the technique modular and are available to the wizard for creating its configuration proposals and to the interpretation of the analyzed signals.

The ACUTE configuration contains the entire configuration of acute project. It is created successively from the hardware, analysis, feature and Klassifikatorprojektierung and forms the basis for automatic operation 53rd

an object-oriented approach was chosen for the realization of the components. The individual object classes are defined by the management units of the individual components of the

ACUTE system fixed.

Essentially, it is the objects

• the hardware objects (sensor, signal conditioning, ...) • the executable properties of the automatic mode (process for the signal acquisition and processing components for visualization and archiving)

• the Prüflingsbeschreibung for technology kit.

• internal objects for realizing a flexible drain control and a flexible access to a wide variety of art kits.

The individual object classes are implemented as OLE Automation objects (Object Linking and Embedding).

Fig. 6 shows the software structure of the acute-base system. The acute-based system consists of the following software components: hardware catalog 39, hardware objects 34, Projektierablaufsteuerung 37, the automatic mode 35, calibration and adjustment 36, ACUTE core object 33, general ACUTE hardware 40 and user-specific hardware 41st

Each software component forms a provided with a defined interface completed implementation unit. Realized as OLE objects software components 33, 34 are distinguished by the fact that it for different "object user" various interfaces (represented by the symbol "o") offer. This example ensures that objects of different classes (eg all drain securable objects) can present themselves for a particular user (eg automatic mode) with a unified interface, while for other users, such as the acute-project planning, another no uniform interface (Dispatch interface) possess. The individual software components of the acute-base system are described below.

Fig. 7 shows the interface structure of an acute-core object 42. The acute-core 42 consists of a collection of OLE Automation objects that can be addressed by the acute configuration, and the automatic mode. This OLE objects are equipped with different OLE interfaces 58, 59, 60 (interfaces), via which they can advertising addressed to. In addition to the dispatch interface 58, which is an object of the varying object to standard interface of OLE objects, there are more that are standardized for the task. Thus, there exists for each acute-core object 42 is a uniform Automatikbetrieb- interface 60 for automatic operation, as well as a the configuration interface 59 for acute configuration. This has the advantage that the-use application must know nothing of the object itself, but each object can address right.

In automatic mode, the control flow accepts the execution and synchronization of the individual test steps. The sequencer is also an acute-core, so OLE object. So steps can be executed in parallel, each OLE object is invoked in a separate thread. The synchronization of the test steps is controlled by events.

The ACUTE configuration includes the following software components:

• "Controlling Projektierablauf": controls the Projektierablauf and communicate with the user via the user interface

• Hardware objects: describe the hardware configuration of acute project. These objects are not used in automatic mode, that can not be executed and therefore not included in the acute-core. The software component "control Projektierablauf" is the framework program of acute configuration and performs the following tasks: • User interface

• Control and management of Projektiervorgangs

• response of the hardware objects and objects of the acute-core.

The hardware objects as the objects of the acute-core OLE objects that represent the individual hardware components of an acute system. Supply the other components of the acute-configuration or the technology kit following interfaces:

• Dispatch Interface: Features of the property may be obtained / set • Projektierungsschni ttstelle: providing designing specific methods

The art kit offers the user the opportunity to be projektie- ACUTE project using a wizard reindeer. The wizard has to both technology dependent

have specialized knowledge and through metrological and analytical knowledge base. This knowledge is the basis for the creation of configuration proposals or the interpretation of the signals processed by the assistant. Subsequently, the general design of a modular technology is described.

Basis for the assistant's knowledge of a technique kit forms the technology-dependent knowledge base that the relevant, for the use of an emergency system in a given technology, containing technological knowledge in a colloquial form. From this knowledge, the technological rule Rules Wizard knowledge are derived that knowledge together with the nikbaukasten for each valid tech metrology (hardware, signal processing) the so-called. Form.

The metrological and hardware knowledge is independent of technology and contain mostly already in the appropriate hardware objects and objects of the acute-core (analysis, inspection elements). The wizard can draw on this knowledge. Only the (universal) dependencies between the individual hardware components which are relevant for the creation of a consistent hardware configuration, are stored in the assistant.

The technological knowledge must be re-created for each technology modular and may for special applications also expanded further. The rules, which are derived from the technological knowledge are therefore formulated in a specific rule language that can be interpreted by engineering construction kit. On the technological rules, the attributes of all hardware and acute-core objects can be linked logically and / or arithmetic. The technological rules can be classified as follows:

Fig. 7 shows the software components of the modular technique 61 and the interaction with the components of acute configuration 38. The individual components of the acute-configuration are provided with those already used in connection with FIG. 6, reference numeral. Art kit 61 consists of the software components: assistant 62, technological hardware component 63, a rule interpreter 64, technological rules 65 and specimen 66th

The individual components are described below. The wizard provides the 62 acute-Project 38 the possibility for a project proposals for a specific ACUTE object type (eg, sensors, signal evaluation, ...) to retrieve and be interpreted on the other parameters of the analyzed time signal. Since the acute-configuration, the assistant can address 62 using any technique kits 61 38 must provide the wizard 62 all building sets 61 a unified interface.

The wizard provides 62 via the interface for configuring proposals following services are available:

• creating a configuration proposed for a particular hardware component (sensor, signal conditioning, acquisition board and PC) • Preparation of a configuration proposal for evaluation (more precisely, analysis channels), fikatoren features and classi-.

As a result, the wizard 62 38 transfers of acute configuring a list of suggested objects (more precisely, the corresponding object identifiers).

For the interpretation of the analyzed time signals, the wizard provides 62 following services: • for certain parameters (time, frequency, etc.), it provides typical sizes (eg slats frequency Drehfrequente, etc.).

• predetermined parameter values ​​are shown as a function of such variables (eg frequency as a multiple of the slats frequency).

The wizard 62 maps each request to one (ore more) technological rules he selects on keywords. He is supported by the technology-independent rule interpreter that can identify a rule about the key phrase and then interpreted. Here, the rule interpreter independently procured all necessary for the execution of the rules values ​​from the technology-specific description of the - implemented as an OLE object -Prüflings 66, the hardware objects and the objects of the acute-core.

The functional components of the acute-based system 38, 61 are reflected in the corresponding software components.

The acute system meets regard. Dynamics and extensibility following requirements: • The automatic mode must be able to control a wide variety of test procedures that are created through the ACUTE configuration.

• The ACUTE-based system must boxes with different Technikbau- be executable, without the need for a special

Configuration is necessary.

• The acute-based system must be expandable to (user-specific) signal processing method.

• The technique kits need to user-specific technical knowledge nologisches can be extended.

• All extensions must be possible without repercussions on the existing acute system.

For the modification of the contents of the hardware catalog is a mask-oriented editor. The functions of the kernel can be accessed using OLE Automation objects.

The Fig. 9 - 22 show, respectively, stems exemplary input and display masks an acoustic test and Projektierungssy-, as explained in connection with Figures 1 to 8..

In particular, Fig. 9 shows exemplary first input screens 67,68,69 to determine the name and Abspeicherpfades for planning a new specimen. The activation of this input forms is required for creating a new acute care project.

10 shows exemplary second input masks 70,71 to the configuration of a new test specimen with a corresponding measuring device, so-called acute project masks.

FIG 11 shows exemplary third input masks 72,73 to further configuration of a new test specimen with corresponding measurement arrangement using a assistentenuntersütz- th configuration with selection of hardware components from the so-called modular technique.

FIG 12 shows exemplary fourth input masks 74,75 to the configuration of the technical properties of the specimen, the so-called Prüflingsbeschreibung.

FIG 13 shows exemplary fifth input masks 76,77 for the selection of acoustic sensors for the test object, wherein so-called assistant proposals for sensors are used.

FIG 14 shows a sixth input screen 78 for inputting new acoustic sensors. In this new sensors are added to the existing set of sensors.

FIG 15 shows exemplary seventh input screens 79,80,81 to view the properties of acoustic sensors. This makes the selection of a sensor from the HW catalog is supported.

FIG 16 shows an eighth input mask 82 to the start of an acoustic test, ie a pattern of recording in the form of a typical recording samples.

FIG 17 shows exemplary ninth input masks 83, 84 for observing an acoustic check, for example in connection with a new recording.

FIG 18 shows exemplary input screens tenth to 85.86

Representation of the result of acoustic test in the form of a micrograph-mask, that is a representation of the received acoustic signals. FIG 19 shows an eleventh input screen 87 for selecting and configuring the acoustic analysis procedure for analyzing the result of an acoustic test. This involves a determination of the evaluation, ie the analysis channels and the inspection characteristics.

FIG 20 shows exemplary twelfth input masks 88,89 to the other configuration of the acoustic analysis process, that is, to the threshold setting for inspection.

FIG 21 shows exemplary thirteenth input screens 90,91,92 to generate the parameters for an automatic acoustic testing. The aim is a parameterization of the automatic mode for generating a test specifications.

FIG 22 shows a fourteenth entry screen to display the technical characteristics of sensors, the so-called acute Hardware Catalog Manager or HW editor.

In summary, the invention thus relates to a system and method for configuring and performing Prüfablaufen. The system consists of a hardware catalog 2, as an image of real hardware components in the relevant for the system hardware objects 2a..2d (for example, calibrators, sen- sors, signal conditioning, signal detection modules, actuators) are stored and made executable objects 3a..3d (eg Signalerfassung- and processing, visualization and archiving) for configuring and / or testing of a test setup formed from the hardware objects and / or projects from the executable Obwalden. The hardware objects 2a..2d and executable objects 3a..3d have at least one predeterminable 17..21 interface, which is provided for interconnection of the hardware objects 2a..2d and / or executable objects 3a..3d. By mapping the Meßhardware- components and test algorithms as software objects, create a test tool can be configured continuously and completely with that. Because the configuration data can be used immediately and can be executed, hardware items, and signal processing methods can be easily connected and flexibly changed. An otherwise required compiling omitted, thereby Prüfablaufe can be easily adjusted.

Claims

Patentanspr├╝che
1. System for configuring (5a) and Durchf├╝hrung of Pr├╝fablaufen (5b) with a hardware catalog (1), in which the system f├╝r relevant hardware objects (2) are stored as an image of real hardware components, and Pr├╝fablaufObjekten (3) in the image signal processing algorithms and a processing device (4) for the interconnection of the hardware objects (2) and the Pr├╝fablaufobjekte (3) to a Pr├╝fauf- construction (5) and for carrying ├╝hrung the Pr├╝fablaufe, wherein the hardware objects (2) and the Pr├╝f blaufobjekte (3) have at least one predetermined interface (17..21) adapted for interconnection of the hardware objects (2) and / or Pr ├╝fablaufObjekte (3) is provided.
2. System according to claim 1, characterized in daß the hardware objects (2) and the Prüfablaufobjekte (3) as
OLE objects are formed.
3. System according to one of Ansprüche 1 or 2, characterized in that hardware objects (2) and the Prüfablaufobjekte (3) daß a first interface (17, 19) for configuring hardware objects (2) and Prüfablaufobjekte (3) and a second interface (18, 20) für an automatic mode, wherein a control device for Ausführung and synchronization of the Prüfablaufs (5b) is provided in the automatic mode.
4. System according to one of Ansprüche 1 to 3, characterized in that the hardware objects (2) and the Prüfablaufobjekte (3) daß comprise information data to their function.
5. The system according to Ansprüche 1 to 4, characterized in the system for collecting and evaluating vibroakusti- rule, technical characteristics of technical objects daß is provided in particular by electric motors.
6. A method for configuring (5a) and Durchf├╝hrung of Pr├╝fablaufen (5b), in which in a hardware catalog (1) the system relevant hardware objects (2) as an image f├╝r real hardware components and Pr├╝fablaufobjekte (3) are stored as image signal processing algorithms, wherein the hardware objects (2) and the Pr├╝fablaufobjekte (3) to a Pr├╝faufbau (5) are connected to one another and in which the Pr├╝fablauf a ├╝ber predeterminable interface (17..21) of the hardware objects (2) and the Pr├╝fablaufobjekte (3) with increasing level functions durchgef├╝hrt.
7. The method according to claim 6 characterized in that hardware objects (2) and the Prüfablaufobjekte (3) daß be realized as OLE objects.
8. The method according to one of Ansprüche 6 or 7, characterized in that the hardware objects (2) and the Prüfablaufobjekte (3) in an automatic mode daß über a second interface (18, 20) are interconnected wherein predeterminable in automatic operation parameters of the hardware objects (2) and the PrüfablaufObjekte (3) für a configuration and / odeer a Prüfablauf be used.
9. The method according to one of Ansprüche 6 to 8, characterized in daß method comprises a calibration step in which a comparison is made an input signal of a hardware component (2), in particular a sensor with a predetermined normal value, and having an adjustment step, in veränderbare the factors of a hardware component (2) or a PrtüfablaufObjekts (3) to a predefinable tolerance value gepaßt arrival.
10. The method according to one of Ansprüche 6 to 9 characterized in that daß method for detection and evaluation of vibroaku- stischen, technical characteristics of technical objects, is used in particular of electric motors.
PCT/DE1999/001113 1998-04-17 1999-04-14 System and method for configuring and conducting test processes WO1999054698A3 (en)

Priority Applications (6)

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DE19817137.4 1998-04-17
DE19817137 1998-04-17
DE19834972.6 1998-08-03
DE1998134972 DE19834972B4 (en) 1998-04-17 1998-08-03 Data selection by graphic marking
DE1998155874 DE19855874A1 (en) 1998-04-17 1998-12-03 Detection and evaluation system for vibration-acoustic technical characteristics
DE19855874.0 1998-12-03

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WO1998001728A1 (en) * 1996-07-05 1998-01-15 Siemens Aktiengesellschaft Device for collecting analogue measurement signals for the acoustic diagnosis of test pieces
EP0833140A2 (en) * 1996-09-30 1998-04-01 Hewlett-Packard Company Diagnostic system
US5790965A (en) * 1994-11-14 1998-08-04 Fuji Jukogyo Kabushiki Kaisha Diagnosis system applicable to several types of electronic control units for motor vehicles
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2094988A (en) * 1981-03-04 1982-09-22 Nissan Motor Inspecting vehicles
EP0442020A1 (en) * 1988-03-21 1991-08-21 Monitoring Technology Corporation Method and apparatus for detecting gear defects
US5511422A (en) * 1993-04-09 1996-04-30 Monitoring Technology Corporation Method and apparatus for analyzing and detecting faults in bearings and other rotating components that slip
US5790965A (en) * 1994-11-14 1998-08-04 Fuji Jukogyo Kabushiki Kaisha Diagnosis system applicable to several types of electronic control units for motor vehicles
GB2296097A (en) * 1994-12-15 1996-06-19 Martin Lloyd Internal combustion engine analyser
WO1997010491A1 (en) * 1995-09-12 1997-03-20 Entek Scientific Corporation Portable, self-contained data collection systems and methods
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WO1998001728A1 (en) * 1996-07-05 1998-01-15 Siemens Aktiengesellschaft Device for collecting analogue measurement signals for the acoustic diagnosis of test pieces
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