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EP2721465A1 - Système et procédé de commande d'un processus de mesure thermographique - Google Patents

Système et procédé de commande d'un processus de mesure thermographique

Info

Publication number
EP2721465A1
EP2721465A1 EP12784548.5A EP12784548A EP2721465A1 EP 2721465 A1 EP2721465 A1 EP 2721465A1 EP 12784548 A EP12784548 A EP 12784548A EP 2721465 A1 EP2721465 A1 EP 2721465A1
Authority
EP
European Patent Office
Prior art keywords
user
control functions
thermographic
test object
test
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP12784548.5A
Other languages
German (de)
English (en)
Inventor
Lukasz Adam BIENKOWSKI
Christian Homma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
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
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP2721465A1 publication Critical patent/EP2721465A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B15/00—Systems controlled by a computer
    • G05B15/02—Systems controlled by a computer electric
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures

Definitions

  • the invention relates to a system and a method for controlling a thermographic measuring process on a test object.
  • test specimen for example an industrially manufactured item
  • various non-destructive material testing methods are known, for example a visual detection of defects on the surface of test objects or a so-called dye penetrant test, in which dyes in
  • an object to be tested or a test object is at least locally excited by external excitation by means of an energy source heated. A heat generated in the test object is then recorded with a thermal imaging camera.
  • the test object to be examined itself has an energy source.
  • thermography enables a comfortable viewing of measurement results, in particular thermographic measurement results, directly on the test object to be examined.
  • conventional systems for the thermo-measurement of test pieces involve an interaction between the tester and the system, via conventional input devices, such as a keyboard or a computer mouse.
  • This is a significant limitation for the investigating examiner in many applications, particularly in harsh climatic or process environments and locations where the examiner's freedom of movement is severely limited.
  • the examining examiner is distracted from the actual test procedure or evaluation by the operation of conventional input devices such as the keyboard and mouse.
  • Another disadvantage of conventional thermographic test systems is that the conventional input devices used in this case are heavily polluted in many cases due to the environmental conditions and thus prone to errors. It is therefore an object of the present invention to provide a
  • thermographic measurement process on a device under test
  • a controller or user control the measurement process in a simple manner can be limited without being limited in its flexibility or by interacting with input devices.
  • the invention provides a system for controlling a thermographic measurement process on a test object onto which control functions and / or thermographic measurement results are projected.
  • body gestures of a user for selecting the control functions and / or the thermographic measurement results are detected by at least one depth sensor and the control of the thermographic measurement process is carried out as a function of the sensory detected body gestures.
  • the system according to the invention has the advantage that the controller can reliably control a thermographic measuring process in an arbitrary environment even with limited freedom of movement of the user.
  • thermographic measurement process can be largely independent of environmental influences.
  • a further advantage of the system according to the invention is that when carrying out the control procedure for controlling a thermographic measuring process, the user can concentrate the evaluation of the test without being distracted by the operation of conventional input devices.
  • thermographic measuring process on a test specimen Another advantage of the system according to the invention for controlling a thermographic measuring process on a test specimen is that for the examiner there is a clear association between a detected fault on the candidate with the respective measurement result. In this way, the system and method according to the invention operates particularly reliably with regard to error detection.
  • the depth sensor used is a 3D camera which records a body gesture, in particular a hand gesture or facial expression of the user, and generates a corresponding three-dimensional image of the body gesture of the user.
  • the depth sensor is connected to a controller which evaluates the generated three-dimensional image of the body gesture for determining the control function selected by the user and / or the measurement results selected by the user.
  • the controller is connected to an image projector that projects control functions and / or the thermographic measurement results to the DUT.
  • an image projector that projects control functions and / or the thermographic measurement results to the DUT.
  • thermographic measurement used is an active thermographic measurement process in which energy is introduced into the test specimen by an external energy source, which the specimen radiates as heat.
  • thermographic measurement used is a passive thermographic measurement process the test specimen itself has an internal energy source whose energy radiates the specimen as heat.
  • the heat radiated by the test specimen is sensed by a thermal imaging camera, which generates a thermographic thermal image of the specimen.
  • thermographic thermal image of the test object is projected onto the test object itself as a thermographic measurement result.
  • a movement and an orientation of the depth sensor and / or the thermal imaging camera is controlled by the controller as a function of a sensory body gesture of the user.
  • the control functions projected on the test object have menu control functions.
  • the projected control functions have control functions for selecting a thermographic measuring method.
  • control functions are control functions for selecting a spatial and / or temporal measuring range.
  • control functions include control functions for selecting and / or setting measurement parameters.
  • control functions comprise control functions for loading existing measurement results and / or measurement data of the test object.
  • control functions include control functions for marking at least a portion of the test object
  • control functions include control functions for erasing or erasing projected measurement results and / or measurement data of the test object.
  • control functions include control functions for fading in and fading out a virtual flashlight, with the help of which the test result is hidden in a predefined area.
  • control functions have control functions for zooming the thermal imaging camera to a spatial measuring range of the test object.
  • control functions comprise control functions for evaluating the test object.
  • control functions comprise control functions for generating a measurement report for the respective test object.
  • control functions comprise control functions for evaluating the thermographic measurement results of the respective test object.
  • the depth sensor is arranged at an adjustable angle relative to a connecting line running between the user and the test object, the body gestures of the user and / or the control functions projected onto the test object and the projected measurement results in a spatial relation to the user.
  • the depth sensor is worn by the user, in particular on a helmet of the user.
  • the thermal imaging camera is worn by the user, in particular on a helmet of the user.
  • the image projector is worn by the user, in particular on a helmet of the user.
  • a movement device for moving the user in particular a lifting platform, is controlled as a function of the sensory body gestures of the user.
  • the invention further provides a method for controlling a thermographic measuring process on a specimen having the features specified in claim 17.
  • the invention accordingly provides a method for controlling a thermographic measurement process on a test object onto which control functions and / or thermographic measurement results are projected.
  • thermographic measurement process is carried out as a function of the sensory body gestures.
  • FIG. 1 shows an exemplary embodiment of a system for controlling a thermographic measuring process on a test specimen according to the invention
  • thermographic measurement process on a device under test according to the invention
  • a system 1 for controlling a thermographic measuring operation on a test object 2 has at least one depth sensor 3, which is connected to a controller 4.
  • the system 1 further comprises an image projector 5, which is controlled by the controller 4.
  • the controller 4 receives heat images of the test object 2 from a thermal imaging camera 6.
  • the thermal imaging camera 6 senses the heat radiated by the test object 2 and generates a corresponding thermographic thermal image TWB of the test object 2.
  • the thermographic thermal image of the test object 2 is sent to the Transfer control 4.
  • the depth sensor 3 detects body gestures of a user N for selecting control functions SF and / or for selecting thermographic measurement results ME, which are projected on the test object 2 by the image projector 5.
  • the control of the thermographic measurement process then takes place as a function of the body gestures sensed by the depth sensor 3.
  • the depth sensor 3 may be a 3D camera which detects a body gesture of the user, for example a hand gesture, but also a facial expression of the user, and generates a corresponding three-dimensional image of the body gesture of the user N. This generated three-dimensional image of the body gesture of the user N is transmitted from the depth sensor 3 to the controller 4.
  • the controller 4 evaluates the generated three-dimensional image of the body gesture of the user N to determine the control function SF selected by the user N or the measurement results ME selected by the user N.
  • the body gesture may consist of a hand gesture in which the user N points a thumbs up or down. Any other body gestures may also be detected, such as a victory sign or a with the Hand formed circle (OK sign).
  • the system 1 according to the invention does not use conventional input devices, such as a keyboard or a computer mouse, for inputting control commands or for selecting control functions SF or thermographic measurement results ME.
  • the body gesture control used in the system 1 according to the invention serves to dispense with all input devices. This allows the simple execution of measurement series with a large number of measurement processes.
  • the system 1 allows a measuring computer not to be placed in the immediate vicinity of the test station, so that the flexibility can be further increased as a result.
  • thermographic measuring process is an active thermographic one
  • thermographic measurement process in which energy is introduced by an external energy source in the specimen 2, wherein the specimen 2 radiates the introduced energy as heat and the radiated heat is sensed by the thermal imaging camera 6.
  • the thermographic measurement process may also be a passive thermographic measurement process in which the test specimen 2 itself has an internal energy source whose energy the specimen 2 radiates as heat.
  • the radiated heat is in turn sensed by the thermal imaging camera 6, wherein the thermal imaging camera 6 generates a corresponding thermographic thermal image TWB of the test object 2 and transmits it to the controller 4.
  • the thermographic thermal image TWB produced can then be directly displayed by the image projector 5 as a thermographic measurement result ME the surface of the specimen 2 can be projected visible to the user N.
  • the controller 4 also controls a movement and / or an orientation of the depth sensor 3 and / or the thermal imaging camera 6 as a function of a sensory body gesture of the user N.
  • the user N can cause the thermal imaging camera 6 to move relative to the surface of the test object 2 to be examined in accordance with his wishes.
  • the user may control N by aligning the depth sensor 3 with his body gestures.
  • the user N can also control the position or position of the test object 2 to be examined absolutely or relative to the user N by means of his body gestures by means of corresponding body gestures.
  • the user N can also control or adjust his own position, in particular working position, absolutely or relative to the test object 2 to be examined with the aid of his body gestures.
  • FIG. 2 shows an exemplary embodiment of the system 1 according to the invention, in which the user N is on a lifting platform 7.
  • the user N can operate the lifting platform 7 in this manner, for example by changing his height position on the platform of the lifting platform 7.
  • the test object 2 is located on a conveyor belt 8.
  • the user N can further control the conveyor belt 8 by the detected body gestures, for example by placing the test object 2 to be examined in FIG his direction moves.
  • the selection of the control functions SF and / or the thermographic measurement results ME takes place as a function of the sensory body gestures of the user N.
  • the control functions SF can be a very wide variety of control functions SF.
  • control function is a control function for selecting a thermographic measurement result ME that is projected onto the test object 2.
  • control function SF can also be a control function for selecting a thermographic measuring method used in this case.
  • control functions SF include control functions for selecting and / or setting measurement parameters.
  • the user N can also activate control functions for loading existing measurement results and / or measurement data of the test object 2 by means of his body gestures.
  • Further possible control functions SF include marking at least one subarea of the test object 2 or control functions SF for erasing or deleting projected measurement results ME and / or measurement data of the test object 2.
  • Further control functions SF have control functions for zooming the thermal imager 6 in a specific spatial measurement range of the test object 2 on. Further control functions SF of the system 1 according to the invention are
  • Control functions for evaluating the device under test 2 by the user N With the control functions SF, the user N can also automatically generate measurement reports for the respective device under test 2. Furthermore, the control functions SF include control functions for the evaluation of the thermographic measurement results ME of the respective test object 2.
  • each gesture in particular each body gesture, is assigned a specific control function SF.
  • a control function menu can be projected onto the test object 2 to be examined.
  • the depth sensor 3 can, for example, track the movement of the user N's hand, which serves as a pointer here.
  • the user or examiner can make a selection. It can, for example, select a measuring method or determine a measuring range or interrogate measured data or carry out a defect dimensioning if the measuring result for the respective test piece 2 already exists.
  • the system 1 After the selection of the measuring method by the user N, the system 1 is ready for the thermographic measurement.
  • the start of the measurement can be carried out, for example, by a special gesture "photographing.”
  • the thermographic measurement by the user N can be interrupted at any time by a special "wave" gesture.
  • the evaluation of the measurement result ME begins.
  • the measurement result ME is preferably projected onto the test object or the component 2.
  • the examiner or the user N can be provided with the following gesture-controlled control functions SF:
  • the state of the respective test object 2 can be decided.
  • a special body gesture "thumbs up”
  • the user N can express that the test part or the test specimen 2 is, in his view, in order, for example free of errors or examiner to express that the test specimen 2 is not error-free in his view.
  • a report or report of the respective test object 2 can be generated and, if appropriate, displayed. Functions such as scrolling or zooming can also be gesture-controlled.
  • additional additional control functions can be made available for certain measuring methods.
  • a pilot light may be turned off and on.
  • an induction thermography for example, with a body gesture of the user N
  • a trial recording can be triggered.
  • a special body gesture such as "finger snap”
  • the test object or the specimen 2 to a certain spatial axis with the help of a body gesture, for example turning "hand turning”.
  • the depth sensor 3 is arranged at an adjustable angle to a connecting line running between the user N and the test object 2, around the body gestures of the user N and / or the control functions 2 projected onto the test object 2 To capture the projected measurement results ME in a spatial relation to the respective user N.
  • a further information content is given, since in this embodiment not only the body gesture of the user N himself is detected, but additionally their relation to the respective test specimen 2 to be examined. For example, it can be detected in this way whether the user N points at one certain area of the specimen 2 shows or for example, away from the specimen 2 shows. For example, the user N can thereby point to a specific area or a specific location of the test object 2 and thereby cause the thermal imaging camera 6 to zoom in on the location shown.
  • the depth sensor 3 shows a further exemplary embodiment of the system 1 according to the invention for controlling a thermographic measuring process on a test object 2.
  • the depth sensor 3, the image projector 5 and the thermal imaging camera 6 are attached to a helmet 9 which is operated by a user N will be carried.
  • the controller 4 may also be integrated in the helmet 9.
  • the depth sensor 3 is directed to a region which is located directly in front of the user N. In this area, the user, for example, with his hand H, perform body gestures, which are detected by the depth sensor 3.
  • the depth sensor 3 can also be directed onto the face of the user N in order to detect the facial mic of the user N.
  • thermographic measuring process on the test specimen 2 then takes place as a function of the detected body gestures, in particular the facial expression and hand gesture of the user N.
  • the depth sensor 3 and 9 are located on the helmet 9 of the user N. the controller 4, wherein the controller 4 via a wireless
  • a helmet 9 is provided with an integrated system 1 for controlling a thermographic measuring process on a test object 2, the helmet having a depth sensor 3, a controller 4 and optionally additionally an image projector 5 and a thermal imaging camera 6 can.
  • the helmet 9 may also be a diving helmet which, for example, carries a diver when examining an aircraft platform or the like.
  • the test specimen 2 can be any manufactured object, for example a turbine blade, a gear, gears, wind wings or chip housing.
  • the test object may also be parts of a construction or a building.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Automation & Control Theory (AREA)
  • Radiation Pyrometers (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

L'invention concerne un système (1) et un procédé de commande d'un processus de mesure thermographique d'un élément à contrôler (2) sur lequel sont projetés les fonctions de commande (SF) et/ou les résultats thermographiques (ME). Les gestes corporels d'un utilisateur (N) peuvent être détectés par au moins un capteur de profondeur (3) pour sélectionner les fonctions de commande (SF) et/ou les résultats thermographiques (ME), et la commande du processus de mesure thermographique s'effectue en fonction des gestes corporels détectés par le capteur.
EP12784548.5A 2011-11-14 2012-10-31 Système et procédé de commande d'un processus de mesure thermographique Withdrawn EP2721465A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011086267A DE102011086267A1 (de) 2011-11-14 2011-11-14 System und Verfahren zur Steuerung eines thermografischen Messvorganges
PCT/EP2012/071563 WO2013072194A1 (fr) 2011-11-14 2012-10-31 Système et procédé de commande d'un processus de mesure thermographique

Publications (1)

Publication Number Publication Date
EP2721465A1 true EP2721465A1 (fr) 2014-04-23

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ID=47177974

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Application Number Title Priority Date Filing Date
EP12784548.5A Withdrawn EP2721465A1 (fr) 2011-11-14 2012-10-31 Système et procédé de commande d'un processus de mesure thermographique

Country Status (4)

Country Link
US (1) US20140249689A1 (fr)
EP (1) EP2721465A1 (fr)
DE (1) DE102011086267A1 (fr)
WO (1) WO2013072194A1 (fr)

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Also Published As

Publication number Publication date
US20140249689A1 (en) 2014-09-04
WO2013072194A1 (fr) 2013-05-23
DE102011086267A1 (de) 2013-05-16

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