DE19855874A1 - Detection and evaluation system for vibration-acoustic technical characteristics - Google Patents

Abstract

The system includes first memory devices which contain the technical characteristics of vibration-acoustic sensors, and second memory devices which contain the characteristics of a technical object to be examined. First operating devices are provided for configuring the measuring arrangement for recording the acoustic characteristics of the technical object to be examined. Second operating devices are provided for activating and executing the recording of the acoustic characteristics of the technical object, and third operating devices are provided for evaluating the recorded acoustic characteristics.

Description

The invention relates to a system and a method for Project planning and execution of test procedures.

Such a test system or test method comes for example wise in the field of signal acquisition and signal evaluation for use. This is often a mixture of measurement hardware and combine signal processing software with each other, due to the complexity of the context for one such a measurement setup often the knowledge and experience of Specialists are required.

From WO 98/01728 is a device for the detection of analog gene measurement signals for acoustic diagnosis of test objects known. With the help of vibration sensors from Analog test signals are recorded on a test object. A Computer comes with a standard interface card equipped, which serves to digitize the measurement signals. A switching signal is used to generate a trigger signal, which can be entered via a preferred serial interface is. A control program in the computer switches over the Trig gersignal the input of measurement signals on and off.

The invention has for its object a system and a procedure for project planning and execution of test run to indicate that in a simple manner with the help of a Da projected, processed and made can be performed.

This task is carried out by a system for project planning and Execution of test procedures with a hardware catalog solves in the hardware objects relevant to the system as Ab image of real hardware components are stored, and with  Test sequence objects as an image of signal processing algo rithmen and with a processing device for boarding hardware objects and test sequence objects into one Test setup and to carry out the test procedures, the Hardware objects and the test sequence objects at least one Have predeterminable interface that are used to interconnect the Hardware objects and / or the test sequence objects provided is.

This task is accomplished through a project engineering and Execution of test procedures solved, in which in a hard hardware catalog relevant to the system as Ab image of real hardware components and test sequence objects as Ab image of signal processing algorithms are stored, in which the hardware objects and the test sequence objects to egg test setup are interconnected and the Test sequence via a predefinable interface of the hardware ob objects and the test sequence objects with assigned functions is carried out.

The user can also use oh ne previous expert knowledge from the hardware catalog for hardware components required for the test sequence interconnect and so configure the hardware structure and if necessary also change. In the same way with the same Sy stems the test sequence with interconnection of the test sequence objects configured and with each other and with the hardware structure interconnected. A test setup generated in this way is immediate can be used because the hardware objects and the test sequence objects functionally with each other via the specified interfaces are connected. This eliminates the need for an expensive compilation configuration data. Also changes are the Test setup both with regard to the hardware structure and be can be carried out without difficulty with regard to the test sequence. The test system or test method can be combined with one unit tool can be configured continuously and completely. Due to the executability of the configuration information  changes to the test procedure are immediately verifiable and testable, which means much shorter development times brings. The fact that the test sequence objects,. H. the signal processing and evaluation algorithms as data objects can be created by simply adding new data objects the functional scope of the test system dynamic and according to Requirements of the test task can be easily adapted. By the mapping of the hardware components and the test algorithm men on hardware objects and test sequence objects, d. H. to there ten objects, the test system is extremely flexible awarded. New components can easily be added and are immediately available to the system for configuration. This enables the test sequence of the respective test task adapt optimally without having to create a new test system each time create is.

Because the hardware objects and the test sequence objects are designed as data objects, all projects tation and test applications within a system in processed in the same way. As data objects so-called OLE objects (Object Linking and Embedding) in the area of the company's PC software Microsoft has grown in importance in recent years. The test sequence compiled from the OLE objects is oh ne additional compilation can be executed immediately. In addition, new objects can easily be added.

A safe and reliable execution of a test sequence This also ensures for less experienced users that the hardware objects and the test sequence objects a first Interface for configuring the hardware objects and the Test sequence objects and a second interface for an Au have automatic mode, in automatic mode a Control device for executing and synchronizing the Test sequence is provided.  

Because the hardware objects and the test sequence objects Having informational data on their function is a confi Use the gated test sequence immediately even after a change bar and does not have to be compiled first.

As an advantageous application of the system has ge shows that the system for recording and evaluating vibro acoustic, technical characteristics of technical object ten, is provided in particular by electric motors.

The system can be easily calibrated by that in a calibration step a comparison of an on output signals of a hardware component, in particular one Sensor with a predeterminable normal value and in one Adjustment step changeable factors of a hardware compo or a test sequence object to a predefinable tole ranzwert be adjusted.

In the following the invention with reference to the in the figures illustrated embodiment described in more detail and he purifies.

Show it:

Fig. 1 is a schematic illustration of an exemplary embodiment of a game configuration and test system,

Fig. 2 shows an exemplary view of a hardware catalog with hardware objects as an image of real Hardwarekom components of a configuration and test system,

Fig. 3 is a view of an example of a configured test system,

Fig. 4 shows an overview of the hardware configuration of a AKU stischen configuration and test system,

Fig. 5 is a schematic representation of the coarse flow a acoustic configuration and test system,

Fig. 6 is a schematic diagram of the architecture of a test system AKU stischen,

Fig. 7 is a schematic diagram of interfaces of a core object,

Fig. 8 is a block diagram for embedding the Technikbau box in the engineering system,

Fig. 9 exemplary first input masks to select the name and Abspeicherpfades to configu tion of a new device under test (new acute project he ask)

Fig. 10 example second input masks for configu tion of a new test specimen with a corresponding measurement arrangement (acute project mask)

11 shows exemplary third input masks for further configuration of a new test piece with entspre chender measuring arrangement. (Assistant assisted Pro project planning - Modular selection),

Fig. 12 exemplary fourth input masks for configu tion of the technical characteristics of the device under test (Prüflingsbeschreibung)

Fig. 13 fifth exemplary input screens for the selection of acoustic sensors for the test specimen (for Assisten tenvorschläge sensors)

Fig. 14 sixth exemplary input screen for inputting new acoustic sensors (insert Senso ren)

Fig. 15 seventh exemplary input screens for displaying the properties of acoustic sensors (New sensor (HW selection option from the catalog)),

Fig. 16 eighth exemplary input screen for the start of an acoustic examination (sample receptacle (receiving ty pischer samples)),

Fig. 17 ninth exemplary input screens for observing an acoustic check (New recording),

Fig. Exemplary 18 tenth input screens showing the result of an acoustic examination (recording mask (representation of the recorded signals)),

Fig. 19 eleventh exemplary input screens for selecting and configuring the acoustic analysis procedure for analyzing the result of an acoustic Che Fung (determination of the evaluation (analysis channels inspection)),

(Setting the thresholds for inspection) FIG. 20 twelfth exemplary input screens for further configuring the acoustic analysis process,

Fig. 21 exemplary thirteenth input masks for Generie tion of the parameters for an automatic akusti rule check (parameterization of Automatikbetrie bes (test specifications generate)), and

FIG. 22 exemplary fourteenth entry screens to display the technical characteristics of sensors (acute Hardware Catalog Manager (HW editor)).

Fig. 1 shows a schematic diagram of a pro jection and test 1 . The configuration and test system 1 has a hardware catalog 2, in the hard ware objects 2 a. . . 2 d are saved. In addition, a further object catalog 3 is provided, in which test sequence objects 3 a. . . 3 d are saved. The hardware objects 2 a. . . 2 d have interfaces 17 , 18 , the test sequence objects 3 a. . . 3 d section set 19 , 20 , 21 . The inspection system 1 comprises over it from a processing device 4 with a first proces beitungsteilbereich 4 a determining analysis method, with a third portion processing section 4 c for a so-called automatic operation as well as with a fourth Teilverar beitungsbereich 4 d for a calibration of the test system 22nd With the help of the processing device 4 , access to the hardware catalog 2 and to the object catalog 3 can take place.

The processing device 4 is used to configure a test setup 5 , which can be configured from hardware objects 2 and test objects 3 . Reference number 5 denotes such an exemplary test setup. The test structure 5 consists of a hardware structure 5 a and a test sequence 5 b. The hardware structure 5 a contains hardware objects 2 a. . . 2 f. The starting point of the hardware structure 5 a is a device under test 2 a, for example an engine. The device under test 2 a is followed by sensors 2 b, 2 c, 2 d, which are arranged in parallel. The outputs of the sensors 2 b, 2 c, 2 d are connected to the inputs of a signal conditioning 2 e, which in turn are connected to signal detection modules 2 d, 2 e. The outputs of the signal detection modules 2 f, 2 g, which simultaneously form the outputs of the hardware structure 5 a, are connected to the inputs of the test sequence structure. The test sequence structure 5 b in the example shown in FIG. 1 contains a fast Fourier transformation 3 a, an average value calculation 3 c, a variance calculation 3 d, a kurtosis determination 3 b and a cepstrum determination 3 e. The output signals from the test sequence components 3 c, 3 d, 3 e determined in this way are passed on together to a classifier 3 f.

The system shown in Fig. 1 for project planning and execution of test sequences illustrates the basic integral structure of the measurement hardware and the test process. The measurement hardware is using the processing device 4 from the hardware catalog 2 of the hardware objects 2 a. . . 2 d configured during the test sequence, ie the signal processing evaluation algorithms from the catalog 3 of the test sequence objects 3 a. . . 3 d is compiled. The processing device 4 is also used to process and execute the measurement setup 5th

The special feature of the inspection system 1 shown in Fig. 1 is that both the hardware and the software to be configured for the testing system with the help of the processing device 4. The mapping of the measurement hardware components and test algorithms for data processing objects opens up enormous flexibility for the system. Both measurement hardware components and test sequence objects can be easily added and are immediately available for configuration. The test sequence can thus be adapted to the test task without having to create a completely new test system. The complete integration of the test system within a data processing system creates an integral test system that can also be easily used by non-specialists. In addition to the configuration of the test system, there is also the option of integrating the documentation of the test system in electronic form within the data processing system.

FIG. 2 shows a screen 14 on which a hardware catalog 2 of an acoustic test system is shown as an example in a first screen area 12 . Hardware catalog 2 contains a large number of hardware objects in the form of sensors, signal conditioning, signal acquisition modules and calibrators. The hardware objects "sensors" are divided into airborne noise sensors and structure-borne noise sensors, which in turn are assigned different types.

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

Fig. 3 shows an example of a fully configured measurement hardware structure of an acoustic test system. The configured hardware of the test system is given in a screen area 7 and is called "signal acquisition hardware". The screen area 7 shows the individual hardware objects of this signal acquisition hardware in the form of sensors, signal conditioning, signal acquisition module and calibrator. The view shown in Fig. 3 also contains menu and ICON bars 9 , 10 , 11 , which allow the user to navigate within the test system. In the right screen area S, the hardware objects of the sensors, which are specifically highlighted in the left screen area by an arrow 15 , are again explicitly specified as a structure-borne sound sensor and airborne sound sensor.

Fig. 4 shows an overview of the hardware configuration of an acoustic configuration and test system. The hardware configuration consists of a computer 22 with a digital signal detection device 27 . The digital Signalerfas solution device 27 has analog / digital converter 28 and Digi tal / analog converter 29 , the means with a signal conditioning 23 can be coupled. With the signal conditioning means 23 , a structure-borne noise sensor 26 and an airborne sound sensor 25 can be coupled. With the digital signal detection device 27 , a loudspeaker and / or headphones 24 and the airborne sound sensor 25 can be connected . The loudspeaker 24 is coupled to an analog / digital converter 28 and the airborne sound sensor is coupled to a digital / analog converter. Wei ter is identified by the reference numeral 30, a digital interface as an input / output, by the reference numeral 31 a decoupling device for the computer 22 and by the reference numeral 32, a process control.

The test system shown in FIG. 4 is used for vibro-acoustic testing of test objects, for example motors, and takes account of the following customer requirements:

• - minimization of production costs,
• - Mastering quality processes,
• - high quality and environmental acceptance of the manufactured products,
• - high uniformity of production in all process stages and
• - Increased availability of the systems.

The system shown in Fig. 4 is a powerful diagnostic system for sound and vibration analysis for automated quality control and production monitoring. The system enables acoustic time signals, such as sound, vibrations, etc., both manually and automatically recorded, processed and can be archived. The system is able to identify possible errors on the part of the test object based on the signals recorded by the test object and a previous configuration, and to output and save error messages via the screen or PC interface. Previous systems can only be put into operation by highly qualified specialists (measurement technicians). The new system to be developed should be adjustable by technologists through the use of assistant technologies. Sound knowledge of measurement technology is then not required.

The product structure of acoustic testing and project planning systems, also referred to below as the AKUT system is as follows: The software part of the AKUT Systems consists of the AKUT basic system and the so-called Technology kit. AKUT is an automatic system Sound test. It can be used both for the production of parts for the qua quality control as well as the monitoring of machines in the ongoing operations. For this, the Sound signals recorded automatically and with the help of patterners identification algorithms analyzed and classified. The AKUT System is integrated into the process and communicates the half with an automation system. The AKUT basic system controls the automatic test mode and enables the operator the project planning, calibration and adjustment of the Sy stems. With the help of technology kits, the user is in the situation, the project planning with the support of a Assistant that contains technology-specific knowledge perform. The user can view the suggestions of the assistant Accept or reject ten.

Fig. 5 provides an overview of the overall structure of the acute system. The AKUT system can be roughly divided into the parts AKUT basic system and modular technology. The AKUT basic system includes all components that make it possible to configure, calibrate / adjust and operate an AKUT system for the acoustic evaluation of test objects of a certain type. The basic system can be expanded to a wizard-assisted system using modular technology. The AKUT basic system consists of

• - the automatic mode, the recording in test mode and Controls the evaluation of the time signals,  
• - the AKUT configuration, the configuration and parameter an AKUT system.
• - The calibration / adjustment, which is a comparison of the am Values recorded at the end of the measuring chain are allowed with a normal (Calibration) and the user the setting of Ju bull constants enabled (adjustment),
• - the AKUT core, which contains all components for signal acquisition and evaluation contains.

In an AKUT system, the components can be automatic drive, project planning and calibration / adjustment always only one Component be active. The activation of the individual compo Only authorized users are permitted. The Configuration of an AKUT system can either only with the AKUT basic system (so-called "manual" configuration) or by adding a suitable technology kit also as assisted by assistants. A successful manual However, configuration requires the user to know the technological and metrological relationships ahead. At Assi offers the assisted configuration stent suitable suggestions to the user, which he draws from his technological and metrological knowledge. Here can have differently authorized users in the AKUT system To be defined. The mechanisms for identifying the Be users are specified in the design document.

The technology kit provides the following components:

• - Enter test object description: Enter the technological User data in dialog with the user who is building and the acoustically relevant properties of the test items Describe objects (e.g. electric motors).
• - Assistant: supports the user during configuration of an AKUT project in which the technological applications evaluates data. Based on its internal knowledge  on the one hand, he suggests the configuration and parameterization of the hardware and software components of a AKUT project and supports him in the other technological interpretation of his recorded time si gnale.

In addition, a technology kit "electric motors" can be prepared be put.

The AKUT core can be functionally divided into the following components breakdown: signal acquisition / playback, signal processing tion, feature extraction, classification, visualization, ar chivation and AS communication (= communication with the Au automation system).

The component signal acquisition / reproduction is for the on taking and playback of the sensor signals responsible. Depending on Recording hardware can capture multiple channels at the same time become. The signal acquisition provides for everyone recorded Channel the recording data available for further processing supply. The recorded signals can be in various ways be further processed (= signal processing). That's Me methods available, the recorded time signal in Fre transform frequency range or data in time or fre filter frequency range. Multiple signal processing can methods are connected in series as long as the Result data from the predecessor used as input data that can.

Characteristic extraction is the calculation of Characteristic values. A characteristic is defined by a submenu ge of the result data of the signal processing, as well as by a Calculation rule. In this calculation rule you can various statistical functions (e.g. mean, variance etc.) can be used and (arithmetically) combined. Result The feature calculation is a scalar value. Of the  (Threshold) classifier uses the calculated feature values in order to be based on characteristic-specific thresholds that are in specified in the test specification, the measured test object to be divided into defined error classes. Are all notes values within their thresholds, the candidate is considered well rated. In addition to the threshold classifier are also other classifiers conceivable. For the presentation of data this component is responsible. The data to be displayed are from the other components such. B. Signal processing tion or classification. The user has during the AKUT configuration the possibility to mark areas and the current (metrological) values (time, fre frequency, amplitude) at the cursor position on the screen to be issued.

The archiving takes over the storage of measured values and Evaluation results during operation. Here is for each AKUT project can be parameterized, which elements protocol should be lated. The communication component takes over communication with the connected automation system stem AS. A function block ak tive that supports the protocol with the AKUT computer. In principle, other types of AS communication are possible (e.g. via MPI or via ObjectEngine.).

Another of the AKUT basic systems is the automatic mode. Automatic mode requires a test specification that the ACUT configuration generated. In the test specification is de defines which objects with which parameters in which Order to be executed. The process can be by a comm communication signal from the AS or stopped by the operator become.

Calibration is the process of comparing the test specimen with a normal. It is a prerequisite for use  a test equipment. Internal adjustments are made during adjustment kungs factors adjusted so that the deviation in Kali bration is less than a certain tolerance value. Ju Bull and calibrate the entire measuring chain, esp but especially the sensors. Both processes must at least carried out during commissioning. It is affected Electrode including sensors / microphones, signal condition nation, sound card, calculator.

Every use of an AKUT system for the evaluation of certain test objects is described by an AKUT project, which is created via the AKUT project planning. The AKUT configuration enables

• - the configuration of all hardware components of the test job construction
• - the selection of the corresponding hardware products from one Hardware catalog
• - The selection and parameterization of all for the signal recording me, signal processing and the subsequent evaluation (Features / classifier) required software components.

For each AKUT project, an AKUT Configuration generated and saved, all descriptive contains exercise data for a specific project. Based on AKUT configuration creates a so-called test specification that describes the test procedure and all for the Test procedure contains necessary information. Corresponding This test specification is the time in automatic mode signals recorded, evaluated and classified.

New AKUT projects can be created via the configuration process created, as well as existing ones can be modified.  

The AKUT configuration comprises the following configuration steps

• 1. Hardware configuration
• 2. Recording / importing typical test objects
• 3. Configuration of the analysis methods
• 4. Definition of characteristics
• 5. Setting the classifier
• 6. Parameterization of automatic mode.

The individual configuration steps are described below ben. For a clear illustration of the functionality of the Assistant-assisted AKUT project planning using the Tech nikbaukastens for permanent magnet DC motors developed a surface demonstrator.

In the first configuration step, the hardware configuration, the hardware components sensors signal conditioning, acquisition module and PC must be configured for the AKUT project (see Fig. 2-4). For each hardware type (sensor, signal conditioning, acquisition module, PC), the hardware configuration enables the operations "create new hardware component", "change properties" and "delete hardware component". When a new hardware component is created, the AKUT configuration assigns the new hardware component a unique symbolic name that can be changed by the user. The hardware catalog is used to select the real hardware product to be assigned to the new hardware components. The hardware component can be connected to any existing hardware components according to the hardware connection options (sensor → signal conditioning → acquisition module → PC). The selection of the real hardware product can be changed. Adjustable hardware properties (e.g. gain factor of signal conditioning) can also be modified. With a hardware component, all associated hardware interconnections are always deleted.

For each sensor, a hardware channel is created that shows the way a time signal recorded by this sensor by the interconnected hardware components. The user the interconnections of the individual channels can be displayed to let. All Pro generated during the hardware configuration Configuration data are stored in the AKUT configuration. When configuring the hardware manually (i.e. without tech nik modular system), the user must approve the test item neten hardware components from the hardware catalog independently determine and coordinate.

In order to save configuration effort, one can already exist of the project can be copied into a new one. Then you can the not applicable project parts are changed individually the. The hardware catalog of the AKUT basic system contains natural Only a selection of common ones for an AKUT system in general suitable hardware components. The user therefore has the Possibility of hardware components requested by him via ei insert an editor into the hardware catalog (see chapter 3.5). Only components are transferred to the HW catalog, for which proof of delivery is available.

The second configuration step is: Record / import typi test specimens. As a basis for the later determination of Be Evaluation criteria are the time signals of typical test objects added. In order to get comparable recordings all recordings with the same, to be determined by the user, Recording time performed. Every shot of a typical The device under test must be clearly identified by the user tion and assigned to an error class. This Assignment can also be done afterwards (e.g. after all DUTs are carried out or changed. The user has  the possibility to define new error classes. Each on taken signal is visualized, whereby both the indicated showed channel as well as the type of display (time signal, FFT (Fast Fourier Transform) or FFT spectrogram with Standard settings) can be set by the user. The user can display signals that have already been recorded leave or delete again. Alternatively there is also Possibility of already saved recordings (as wave Files).

In the third configuration step, the configuration of the analysis ver drive, the user can choose for each hardware channel or Sensor one or more (parallel and / or serial tet) Define evaluation methods. For every evaluation creates its own analysis channel, its (unique) name is specified by the user. In addition, the user for every new analysis channel the origin of the signal (Hardware channel / sensor) and specify the analysis method with whom the time signal is to be processed (e.g. FFT Spectrogram). There can also be several procedures in a row be switched on (e.g. filter, FFT). The analysis method are to be chosen so that they provide a suitable basis for the then define the characteristics (see next Section). The user can set an analysis ver driving on the recordings of his typical test subjects and display the result graphically. All during the Configuration of the analysis process generated project data are stored in the AKUT configuration.

In the 4th project planning step, the feature definition, from Users for each analysis channel can choose one or several characteristics can be defined. Every characteristic must be de be finished that as a simple calculation result Numerical value is delivered (e.g. sum of the energies in one certain frequency range). About the definition of smolder  Class values can then be used for a certain characteristic cation of the test objects. The definition of a characteristic usually takes place graphically over the representation of the analyzed Signals from a typical test object: The user selects with the mouse a specific area within its specter trums and selects from the pool of all possible test elements functions one (or several in series) out. He can then calculate the calculation for this characteristic graphical results of all his typical test objects let show. All created during the feature definition Configuration data are stored in the AKUT configuration.

In the 5th project planning step "Setting the classifier, the user can calculate a defined characteristic for all recorded test items and have the result displayed graphically (as a histogram) ( Fig. 12). The test items are sorted according to the error classes and optically differentiated The user can thus easily recognize whether a characteristic for test specimens of a certain error class delivers significant results. For each characteristic value shown in the graphic, the user can have the corresponding image or the associated test specimen properties displayed Define a lower and an upper threshold value for a good / bad classification (with regard to the error class) of the test objects in the graphic.

If several characteristics are defined for an error class, then these are for a good / bad classification OR-linked. In addition, a total qualification for a test object determines the "good" result, if the candidate is considered good with regard to all defect classes was evaluated. The set for a particular feature Thresholds are stored in the AKUT configuration. Of the  The classifier makes its decision in automatic mode with the help of these thresholds.

For the control of the automatic mode, the project a so-called test specification, which defines the test spec run describes. The test specification is created automatically based on those stored in the AKUT configuration Configuration data. The individual steps of the generated Test sequences are listed to the user.

Enter the test object description: project planning with Assi stent requires that in the first step the AKUT Project for test objects to be diagnosed (e.g. electric motor) be described from a technological perspective. this happens via the component Enter DUT Description of Tech nikbaukastens, based on their knowledge of the principle len building an object of your technology the necessary Queries data from the user. Using this technological approach The assistant can change data with his (technological and metrological) assistant knowledge deduce blows for the user or this at the Inter support pretation of its recorded signals.

The wizard supports the user when configuring an AKUT project by suggesting wizards in the following configuration steps:

• - hardware configuration
• - Inclusion of typical test objects
• - Configuration of the analysis methods
• - feature definition.

In each of these configuration steps, the assistant delivers the If requested, users can submit a project proposal know his assistant and the description of the examinee (technological user data). Every assistant The suggestion can be accepted, modified or modified by the user be rejected. Alternatively, the user can of course also continue to make their own configuration specifications.

When modifying a wizard proposal, the following must be observed: If a user wants to modify a wizard proposal, only those elements are offered for direct selection whose properties conform to the wizard proposal (e.g. components from the hardware catalog log). However, he has the option of selecting other elements if desired. This selection will contradict the assistant's suggestion. This has the following consequences:

• - The user receives a warning that his selection can lead to inconsistencies.
• - For further project planning, the selection of the user as a basis for further assistant suggestions drawn. This can result in the wizard only still a limited selection of or none at all can submit more blows.
• - The configuration selected by the user can lead to a Be Impairment of the automatic mode or the test specimen conduct evaluation.

The user has the option of using his own HW components to mark an editor in the HW catalog or this there also to be included if they are in this HW catalog are not included. The marked HW components  are given preferential treatment as part of the assistant suggestions delt.

The assistant also supports the user with the In interpretation of the analyzed time signals. Based on his technological and metrological knowledge and that of the user the given technological description parameters of the Test object, it can specify the technological meaning ner parameters (e.g. frequencies) and the user Show. Example: The user marks with the mouse in egg a certain frequency range and he keeps the assistant from the information that this Be rich z. B. be a certain multiple of the slat frequency finds.

The data for the HW catalog is not an egg fair component, but only about the description special, especially for the technology of the technology kit suitable hardware products.

Fig. 5 shows the overall sequence of the AKUT system as a rough run. The overall sequence of the AKUT system is reflected on the surface. After starting the AKUT system 43 , the user must open an existing AKUT project 45 or create a new project 45 in the first step 44 . This loads the project-specific AKUT configuration 45 or creates a new one. Then the user can select the desired mode 46, 49, 55, which is possible with a new project just selecting configuring operation 46, the 49th If the user ends the selected operating mode, he can then either activate another operating mode or close the AKUT project 45 through step 58 . In the initialization phase of the automatic mode, the objects from the AKUT core that can be carried out are created, initialized and linked in their sequence according to the test specification. If the automatic mode 53 is started by selecting the operating step 52 , the objects are executed in their order, whereby several objects can be processed in parallel (e.g. an FFT calculation for each channel). After the sequence control has been started, the AKUT core objects are executed in the sequence of the test sequence. The test procedure can be carried out either once or in a loop.

If the user selects the calibration and adjustment mode 56 by executing the operating step 55 , he must first enter his name (identification). The user can select the standard he is using from a list of commercially available standards in the hardware catalog. He can extend this list with his own standards with the properties name, standard value and frequency range. After selecting a standard, he is asked to attach the standard to a sensor. He then starts the recording using the keyboard (recording time 2 s). The recorded signal, the name of the user, the date with the time and the measured value assigned to the standard value are saved. The measured value is displayed on the screen together with the percentage deviation. The calibrate is completed in step 57 . In addition, the user has the option (by mouse click) to have a new gain factor calculated, which normalizes the electrode so that the measured value displayed is the same as the standard value with the same recording. After acknowledgment, this gain factor is transferred to the AKUT configuration.

In the configuration operation 47 , 49 new AKUT projects can be created as well as existing ones modified.

The AKUT configuration includes the already listed Pro projection steps. When creating a new AKUT Project, the individual project planning steps must be carried out one after the other which are carried out. After each configuration step, al  However, both an interruption of the configuration run and also jumping back to a previously performed pro projecting step possible.

When configuring without an assistant 47 (step 46 ), the user is provided with operations in every configuration step via the user interface, via which he can create a new AKUT configuration and display or manipulate existing ones. The sequence within a project step results from the selection and sequence of the individual operations selected by the user. All newly created or modified project data within a project planning step are stored in the AKUT configuration.

The assistant-supported configuration 50 activated by step 49 is possible in the following configuration steps:

• - hardware configuration
• - Inclusion of typical test objects
• - Configuration of the analysis methods
• - feature definition.

In the assistant-supported configuration 50 , both the components of the AKUT configuration of the basic system and of the modular technology are active.

For all to be determined within the hardware configuration Hardware components (sensor, signal conditioning, acquisition module, PC), the user can use an assistant have a suggestion made. The suggestion of the sensors is there when from the technological properties of the device under test conducts, all other hardware components must be on the selected sensors. Every assistant before  impact can be adopted, modified or canceled by the user be rejected. Hardwa reconfigured.

All projects created during hardware configuration Animal data are stored in the AKUT configuration. Of the Assistant supports the user by suggesting Error classes for which the Pro suitable features can be proposed. The user must take the recordings of his typical test objects, which correspond to the respective error classes nen. The user can of course also create his own error classes Add.

As part of the project planning of the analytical procedures the user from the assistant for the evaluation of each Have hardware channels submit appropriate suggestions that this from the technological description of the test object and the properties of the channel. The user can accept individual proposed analysis channels, modifi decorate (e.g. set another window function for the FFT) or refuse. In the assistant-supported configuration are of course still all under the AKUT basic system described services available. All during configuration configuration data generated during the analysis process stored in the AKUT configuration.

With the assistant-supported configuration 47 , the user can have the assistant suggest features for a specific analysis channel. Each suggestion is assigned to one of the error classes already suggested by the assistant. The user can accept, modify (e.g. select a larger frequency range) or reject the individual proposed features. Of course, all the services described under the AKUT basic system are still available in the assistant-supported configuration. All project data generated during the configuration of the analysis procedures are stored in the AKUT configuration.

The hardware catalog (HW catalog for short) includes the description a selection of hardware components that can be used for AKUT sensor, signal conditioning, digital acquisition assembly, PC and calibrator. The content of the hardware catalog forms the basis for the selection of hardware products in the Framework of the (manual and assistant-supported) hardware project planning.

The project-specific data are from the project planning created for each AKUT project and include the technology Description of the test object (only with assistant sub supported configuration) and the entire configuration of a AKUT project.

The technological user data describe the technologi the structure of the objects to be checked in an AKUT project, e.g. B. Electric motors. They are part of the engineering kit that The structure of this data depends on the technology. The technology The user data from the component "Capture specimen description" captured by the technology kit and are available to assist the creation of his project suggestions and for the interpretation of the analyzed signals are available.

The AKUT configuration contains the overall configuration of an AKUT project. It is successively created by the hardware, analysis, feature and classifier configuration and forms the basis for automatic operation 53 .

An object was created for the realization of the components approach chosen. The individual object classes are  through the administrative units of the individual components of the AKUT system defined.

The objects are essentially

• - the hardware objects (sensor, signal conditioning,...),
• - The executable objects of automatic mode (Methods for signal acquisition and processing, compo for visualization and archiving),
• - the test specimen description for the modular technology system,
• - Internal objects to implement a flexible process control and flexible access to the various engineering kits.

The individual object classes are called OLE automation objects (= Object Linking & Embedding) realized.

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

Each software component forms a completed implementation unit with a defined interface. The software components 33 , 34 realized as OLE objects are distinguished by the fact that they offer different interfaces (represented by the symbol “-o”) for different “object users”. This z. B. achieved that objects of different classes (z. B. all executable objects) for a specific user (z. B. the automatic operation) can present themselves with a uniform interface, while for other users, z. B. the AKUT configuration, another, non-uniform, interface (dispatch interface). The individual software components of the AKUT basic system are described below.

Fig. 7 shows the interface structure of an acute-core object 42nd The AKUT core 42 consists of a collection of OLE automation objects that can be addressed by the AKUT configuration and automatic mode. These OLE objects are equipped with different OLE interfaces 58 , 59 , 60 (interfaces), via which they can be addressed. In addition to the dispatch interface 58 , which represents a standard interface of OLE objects that varies from object to object, there are also others that are standardized for the respective task. For each AKUT core object 42 there is a uniform automatic operation interface 60 for automatic operation, as well as a projecting interface 59 for AKUT project planning. This has the advantage that the application using it does not have to know anything about the object itself, but can address each object equally.

The sequence control does this in automatic mode Execution and synchronization of the individual test steps. The Sequence control is also an AKUT core, i.e. OLE Object. So that test steps can be carried out in parallel, each OLE object is called in its own thread. The Synchronization of the test steps is controlled via events.

The AKUT configuration comprises the following software components:

• - "Control project planning process": controls the project planning process and communication with the user via the operator surface
• - Hardware objects: describe the hardware configuration AKUT project. These objects are in automatic mode drives not used, so they are not executable and therefore not included in the AKUT core.

The software component "Control configuration process" forms the framework program of the AKUT configuration and takes on the following tasks:

• - User interface
• - Control and execution of the project planning process
• - Addressing the hardware objects and objects of the AKUT core.

The hardware objects are like the objects of the AKUT core OLE objects, which represent the individual hardware components of an AKUT system. They make the following interfaces available to the other components of the AKUT configuration or the modular technology system:

• - Dispatch interface: He can properties of the object asked / set
• - Project planning interface: Provide project planning specific methods

The technology kit offers the user the opportunity his AKUT project with the help of an assistant The assistant must have both technology-dependent Special knowledge as well as metrological and analytical Basic knowledge. This knowledge forms the basis for the Creation of project planning proposals or Interpreta tion of the processed signals by the assistant. Below is the general construction of a Technikbauka describe very well.

Basis for the assistant knowledge of a modular technology system forms the technology-dependent knowledge base that the, for the use of an AKUT system in a specific technology relevant, technological knowledge in a colloquial language contains form. From this knowledge, the technologi rules, which together with the for each tech  nik modular system valid (hardware, signal evalu knowledge) form what is known as assistant knowledge.

The measurement technology or hardware knowledge is technology-independent gig and mostly already in the corresponding hardware objects and objects of the AKUT core (analysis method, test elements) included. The assistant can rely on this knowledge To fall back on. Only the (general) dependency between the individual hardware components required for the Creation of a consistent hardware configuration relevant are stored in the wizard.

The technological knowledge must be created for each technology kit and u. U. can also be expanded for special applications. The rules that derive from technological knowledge are therefore formulated in a specific rule language that can be interpreted by the modular technology system. The attributes of all hardware and AKUT core objects can be linked logically and / or arithmetically using the technological rules. The technological rules can be classified as follows:

FIG. 7 shows the software components of the modular system 61 and the interaction with the components of the AKUT configuration 38 . The individual components of the AKUT project planning are provided with the reference numerals already used in connection with FIG. 6. The technology kit 61 consists of the software components: assistant 62 , technological hardware component 63 , rule interpreter 64 , technological rules 65 and device under test 66 .

The individual components are described below. The assistant 62 offers the AKUT project planning 38 the possibility to call up project planning proposals for a certain AKUT object type (e.g. sensors, signal evaluation methods,...) And to have another parameter of an analyzed time signal interpreted. Since the AKUT project planning 38 must be able to address the assistants 62 of any technical construction kit 61 , the assistants 62 of all the technology construction sets 61 provide a uniform interface.

The Assistant 62 provides the following services via the interface for the project proposals:

• - Creation of a project proposal for a be correct hardware component (sensor, signal conditioning, Acquisition module and PC)
• - Creation of a project planning proposal for the evaluators method (more precisely: analysis channels), characteristics and classi ficators.

As a result, the assistant 62 transfers the AKUT project planning 38 a list of the proposed objects (more precisely the corresponding object identifications).

Assistant 62 offers the following services for interpreting the analyzed time signals:

• - it delivers for certain parameters (time, frequency, etc.) typical sizes (e.g. slat frequency, rotational frequency, Etc.),
• - Predefined parameter values are dependent on such Quantities shown (e.g. frequency as a multiple of La frequency).

The assistant 62 maps each request to one (or more) technological rules, which it selects using key terms. He is supported by the technology-independent rule interpreter, who can identify a rule using the key term and then interpret it. The rule interpreter independently obtains all the values necessary for processing the rules from the technology-specific description of the DUT 66 - realized as an OLE object -, the hardware objects and the objects of the AKUT core.

The functional components of the AKUT basic system 38 , 61 are reflected in the corresponding software components.

The AKUT system fulfills in terms of dynamics and expandability following requirements:  

• - The automatic mode must test a wide variety of runs that are created via the AKUT configuration, can control.
• - The AKUT basic system must have different technology boxes can be run without any special Configuration is necessary.
• - The AKUT basic system must be (user-specific) procedure be expandable for signal processing.
• - The engineering kits must be customized to user-specific tech biological knowledge can be expanded.
• - All extensions must have no repercussions on the be existing AKUT system may already be possible.

For the modification of the content of the hardware catalog stands a mask-oriented editor is available. The functions of the system core can be addressed via OLE automation objects.

FIGS . 9-22 each show exemplary input and display masks of an acoustic testing and projecting system, as was explained in connection with FIGS . 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 these input masks is necessary when creating a new acute project.

Fig. 10 shows exemplary second input masks 70 , 71 for project planning a new test object with a corresponding measurement arrangement, so-called acute project masks.

Fig. 11 shows exemplary third input masks 72, 73 for further configuration of a new test specimen to correspond to the measuring arrangement using an assistant supporting th configuration with selection of hardware components from the so-called modular technique.

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

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

Fig. 14 shows a sixth input screen 78 for inputting new acoustic sensors. New sensors are added to the existing collection of sensors.

Fig. 15 shows exemplary seventh input screens 79, 80, 81 ren for indicating the technical characteristics of acoustic Senso. Thereby, the selection is supported a sensor from the HW catalog.

FIG. 16 shows an eighth input mask 82 for starting an acoustic test, ie a sample recording in the form of a recording of typical test objects.

Fig. 17 shows exemplary ninth input masks 83, 84 used to load an acoustic test observation, for example, assistance related to a new recording.

FIG. 18 shows exemplary tenth input masks 85 , 86 for representing the result of an acoustic test in the form of a recording mask, ie a representation of the acoustic signals recorded.

Fig. 19 shows an eleventh input screen 87 for selection and the project planning Pro acoustic analysis procedure for analyzing the result of an acoustic test. This involves defining the evaluation methods, ie the analysis channels and the test characteristics.

Fig. 20 shows exemplary twelfth input screens 88, 89 to the other configuration of the acoustic analysis process, ie to set the thresholds for inspection.

Fig. 21 shows exemplary thirteenth input screens 90, 91, 92 for generating the parameters for an automatic akusti rule examination. The aim is to parameterize the automatic operation to generate a test specification.

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 a method for project planning and for carrying out test sequences. The system consists of a hardware catalog 2 in which hardware objects 2 a relevant to the system. . . 2 d are stored as an image of real hardware components (e.g. calibrators, sensors, signal conditioning, signal acquisition modules, actuators), and from executable objects 3 a. . . 3 d (e.g. signal acquisition and processing, visualization, archiving) for project planning and / or testing of a measurement structure formed from the hardware objects and / or from the executable objects. The hardware objects 2 a. . . 2 d and the executable objects 3 a. . . 3 d have at least one pre-definable interface 17 . . . 21 on that for interconnecting the hardware objects 2 a. . . 2 d and / or the executable objects 3 a. . . 3 d is provided. By mapping the measurement hardware components and test algorithms as software objects, a test tool is created that can be used to project continuously and completely. Since the configuration data can be used immediately and can be executed, hardware objects and signal processing methods can be easily linked and flexibly changed. An otherwise required compiling is eliminated, so that test procedures can be easily adapted.

Claims (10)

1. System for project planning ( 5 a) and implementation of test sequences ( 5 b) with a hardware catalog ( 1 ), in which hardware objects relevant to the system ( 2 ) are stored as an image of real hardware components, and with test sequence objects ( 3 ) as an image of signal processing algorithms and with a processing device ( 4 ) for interconnecting the hardware objects ( 2 ) and the test sequence objects ( 3 ) for a test setup ( 5 ) and for carrying out the test sequences, the hardware objects ( 2 ) and the test sequence objects ( 3 ) have at least one predeterminable interface ( 17 ... 21 ), which is provided for connecting the hardware objects ( 2 ) and / or the test sequence objects ( 3 ). 2. System according to claim 1, characterized in that the hardware objects ( 2 ) and the test sequence objects ( 3 ) are designed as OLE objects. 3. System according to claim 1 or 2, characterized in that the hardware objects (2) and the Prüfablaufobjekte (3) ei ne first interface (17, 19) reobjekte for configuring Hardwa (2) and the Prüfablaufobjekte (3) and have a second interface ( 18 , 20 ) for automatic operation, a control device for executing and synchronizing the test sequence ( 5 b) being provided in automatic operation. 4. System according to one of claims 1 to 3, characterized in that the hardware objects ( 2 ) and the test sequence objects ( 3 ) have in formation data on their function. 5. System according to one of claims 1 to 4, characterized, that the system for recording and evaluating vibroakusti technical characteristics of technical objects, ins special provided by electric motors. 6.Procedure for project planning ( 5 a) and execution of test sequences ( 5 b), in which hardware objects ( 2 ) relevant to the system are stored in a hardware catalog ( 1 ) as an image of real hardware components and test sequence objects ( 3 ) as an image of signal processing algorithms, in which the hardware objects ( 2 ) and the test sequence objects ( 3 ) are interconnected to form a test setup ( 5 ) and in which the test sequence via a predefinable interface ( 17 ... 21 ) of the hardware objects ( 2 ) and the test sequence objects ( 3 ) performed with assigned functions. 7. The method according to claim 6, characterized in that the hardware objects ( 2 ) and the test sequence objects ( 3 ) are realized as OLE objects. 8. The method according to any one of claims 6 or 7, characterized in that in an automatic mode, the hardware objects ( 2 ) and the test sequence objects ( 3 ) are connected to one another via a second interface ( 18 , 20 ), with parameters of the hardware objects which can be predetermined in automatic mode ( 2 ) and the test procedure objects ( 3 ) for project planning and / or a test procedure. 9. The method according to any one of claims 6 to 8, characterized in that the method comprises a calibration step in which a comparison of an input signal of a hardware component ( 2 ), in particular a sensor with a predeterminable normal value, and an adjustment step in which changeable Factors of a hardware component ( 2 ) or a test sequence object ( 3 ) are adapted to a predefinable tolerance value. 10. The method according to any one of claims 6 to 9, characterized, that the process of collecting and evaluating vibroaku technical characteristics of technical objects, is used in particular by electric motors.