DE202004014797U1 - Swivel-head camera e.g. for inspecting pipelines, uses grouped lamps arranged on separate segment - Google Patents

Swivel-head camera e.g. for inspecting pipelines, uses grouped lamps arranged on separate segment Download PDF

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Publication number
DE202004014797U1
DE202004014797U1 DE200420014797 DE202004014797U DE202004014797U1 DE 202004014797 U1 DE202004014797 U1 DE 202004014797U1 DE 200420014797 DE200420014797 DE 200420014797 DE 202004014797 U DE202004014797 U DE 202004014797U DE 202004014797 U1 DE202004014797 U1 DE 202004014797U1
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Germany
Prior art keywords
swivel
lamps
head camera
camera
separate segment
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.)
Expired - Lifetime
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DE200420014797
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German (de)
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Ibak Helmut Hunger GmbH and Co KG
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Ibak Helmut Hunger GmbH and Co KG
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Filing date
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Application filed by Ibak Helmut Hunger GmbH and Co KG filed Critical Ibak Helmut Hunger GmbH and Co KG
Priority to DE200420014797 priority Critical patent/DE202004014797U1/en
Publication of DE202004014797U1 publication Critical patent/DE202004014797U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8806—Specially adapted optical and illumination features
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/954—Inspecting the inner surface of hollow bodies, e.g. bores
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
    • G03B37/005—Photographing internal surfaces, e.g. of pipe
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N2021/1765—Method using an image detector and processing of image signal
    • G01N2021/177—Detector of the video camera type
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8806—Specially adapted optical and illumination features
    • G01N2021/8835—Adjustable illumination, e.g. software adjustable screen
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • G01N2021/8854—Grading and classifying of flaws
    • G01N2021/8874—Taking dimensions of defect into account
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/062—LED's
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2215/00—Special procedures for taking photographs; Apparatus therefor
    • G03B2215/05—Combinations of cameras with electronic flash units
    • G03B2215/0514—Separate unit
    • G03B2215/0517—Housing
    • G03B2215/0539—Ringflash

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

A swivel-head camera for inspection of confined spaces, such as pipelines, has an objective lens (10) and a number of group-controlled lamps (12,14) arranged around the objective lens (10). The grouped lamps are arranged at any one time on a separate segment.

Description

Die Erfindung betrifft eine Schwenkkopf-Kamera zum Inspizieren schlecht zugänglicher Räume, insbesondere von Rohrleitungen, mit einem Objektiv und einer Mehrzahl von um das Objektiv herum angeordneten, gruppenweise ansteuerbaren Lampen.The Invention relates poorly to a pan head camera for inspection accessible Spaces, in particular of piping, with a lens and a plurality of um lamps arranged around the lens, which can be controlled in groups.

Derartige Schwenkkopf-Kameras sind beispielsweise aus der DE 197 46 347 C1 bekannt.Such pan head cameras are for example from the DE 197 46 347 C1 known.

Bei der Untersuchung von Rohr-Oberflächen mit einer in Radialrichtung verlaufenden Versetzung besteht das Problem, dass die um das Objektiv der Kamera herum angeordneten Lampen einen Halbschatten erzeugen, der eine einfache Stufe in der Rohroberfläche der Rohrwandung als Riss erscheinen lässt.at the examination of pipe surfaces with a radial displacement there is the problem that the lamps placed around the lens of the camera are one Create penumbra, which is a simple step in the tube surface of the Pipe wall appears as a crack.

Um eine derartige, fehlerhafte Interpretation auszuschließen, muss der Kamerawagen durch den Bediener soweit im Rohr verfahren werden, bis ein Schattenwurf an einem Absatz ausgeschlossen werden kann. Der Bediener muss den Kamerawagen in Längsrichtung des Rohres vorfahren und den vermeintlichen Riss erneut durch Verschwenken der Kameraeinheit ins Bildfeld der Kamera bringen. Danach muss der Bediener den Kamerawagen in Längsrichtung des Rohres zurückfahren und den vermeintlichen Riss wieder durch Verschwenken der Kameraeinheit ins Bildfeld der Kamera bringen. Bei Längsversetzungen bzw. Längsrissen kann so nicht vorgegangen werden.Around To rule out such an erroneous interpretation must the camera carriage is moved so far in the pipe by the operator, until a shadow can be excluded from a paragraph. The operator must advance the camera carriage in the longitudinal direction of the pipe and the supposed crack again by pivoting the camera unit bring it into the field of view of the camera. Then the operator has to remove the camera carriage longitudinal drive back the pipe and the supposed crack again by swiveling the camera unit bring it into the field of view of the camera. With longitudinal dislocations or longitudinal cracks cannot be done in this way.

Dieses Vorgehen ist zeitaufwändig und hat den Nachteil, dass der Bediener durch das Verfahren des Kamerawagens den vermeintlichen Schaden verlieren kann. Nachteilig ist damit, dass das Erkennen eines Risses erschwert ist.This Action is time consuming and has the disadvantage that the operator can by the method of Camera car can lose the alleged damage. adversely is that the detection of a crack is difficult.

Der Erfindung liegt damit die Aufgabe zugrunde, eine Schwenkkopf-Kamera derart auszubilden, dass diese eine Interpretation einer möglichen Rissstelle ermöglicht, ohne dass der Kamerawagen bewegt werden muss.The The invention is therefore based on the object of a swivel-head camera trained in such a way that this is an interpretation of a possible crack location allows without having to move the camera dolly.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass die Gruppen von Lampen auf jeweils einem gesonderten Segment angeordnet sind.According to the invention Task solved by that the groups of lamps each on a separate segment are arranged.

Die Lampen können das Objektiv kreisförmig umgeben, die Segmente sind in diesem Fall Kreissegmente.The Lamps can surround the lens in a circle, in this case the segments are circular segments.

Die Lampen können LEDs sein.The Lamps can LEDs.

Die Erfindung wird im folgenden anhand einer Zeichnung erläutert. Dabei zeigt die einzige Figur eine schematische Darstellung einer derartigen Schwenkkopf-Kamera.The Invention is explained below with reference to a drawing. there the only figure shows a schematic representation of such a swivel head camera.

Die an einem nur teilweise dargestellten Kamerawagen befestigte Schwenkkopf-Kamera ist mit einem Objektiv 10 und einer Mehrzahl von Lampen 12, 14 versehen, wobei hier nur zwei Lampen dargestellt sind. Die Lampen sind um das Objektiv herum angeordnet und gruppenweise ansteuerbar.The swivel-head camera attached to a camera carriage that is only partially shown is with a lens 10 and a plurality of lamps 12 . 14 provided, only two lamps are shown here. The lamps are arranged around the lens and can be controlled in groups.

Dargestellt ist eine Position der Schwenkkopf-Kamera bei radialer Ausrichtung auf eine Versetzung. Das Licht fällt dabei derart schräg auf die nach innen weisende Kante der Versetzung, dass die Kamera einen Schatten erkennt. Dieser Schatten ist visuell dann von einem Riss nicht zu unterscheiden. Wird nun die Lampe 14 aus- und die Lampe 12 eingeschaltet, so wird erkennbar, dass es sich tatsächlich um eine bloße Versetzung, nicht also um einen Riss handelt.A position of the swivel head camera is shown with a radial alignment to a displacement. The light falls so obliquely on the inward-facing edge of the offset that the camera recognizes a shadow. This shadow is then visually indistinguishable from a crack. Now the lamp 14 off and the lamp 12 switched on, it becomes apparent that it is actually a mere transfer, not a crack.

Vorzugsweise bestehen die Gruppen von Lampen 12, 14 nicht lediglich aus einer Lampe 12, 14, sondern aus einer Mehrzahl von auf einem das Objektiv umgebenden Kreissegment angeordneten Lampen, die in beliebiger Weise zu Gruppen zusammengefasst und ein- bzw. ausgeschaltet werden können. Auf diese Weise ist es auch möglich, eine längs oder schräg verlaufende Versetzung bzw. Riss daraufhin zu prüfen, ob es sich dabei tatsächlich um einen Riss handelt. Bei einer Kombination aus einer Versetzung und einem Riss kann die Rissbreite bestimmt werden.The groups preferably consist of lamps 12 . 14 not just from a lamp 12 . 14 , but from a plurality of lamps arranged on a circle segment surrounding the objective, which can be combined into groups in any manner and switched on or off. In this way it is also possible to check a longitudinal or oblique dislocation or crack to determine whether it is actually a crack. With a combination of a dislocation and a crack, the crack width can be determined.

Claims (3)

Schwenkkopf-Kamera zum Inspizieren schlecht zugänglicher Räume, insbesondere von Rohrleitungen, mit einem Objektiv (10) und einer Mehrzahl von um das Objektiv (10) herum angeordneten, gruppenweise ansteuerbaren Lampen (12, 14), dadurch gekennzeichnet, dass die Gruppen von Lampen (12, 14) auf jeweils einem gesonderten Segment angeordnet sind.Swivel head camera for inspecting poorly accessible rooms, in particular pipes, with a lens ( 10 ) and a plurality of around the lens ( 10 ) arranged around, group-controllable lamps ( 12 . 14 ), characterized in that the groups of lamps ( 12 . 14 ) are each arranged on a separate segment. Schwenkkopf-Kamera nach Anspruch 1, dadurch gekennzeichnet, dass die Lampen das Objektiv (10) kreisförmig umgeben und die Segmente Kreissegmente sind.Swivel-head camera according to claim 1, characterized in that the lamps the lens ( 10 ) surrounded in a circle and the segments are circular segments. Schwenkkopf-Kamera nach Anspruch 1, dadurch gekennzeichnet, dass die Lampen LEDs sind.Swivel head camera according to claim 1, characterized in that the lamps are LEDs.
DE200420014797 2004-09-23 2004-09-23 Swivel-head camera e.g. for inspecting pipelines, uses grouped lamps arranged on separate segment Expired - Lifetime DE202004014797U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200420014797 DE202004014797U1 (en) 2004-09-23 2004-09-23 Swivel-head camera e.g. for inspecting pipelines, uses grouped lamps arranged on separate segment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200420014797 DE202004014797U1 (en) 2004-09-23 2004-09-23 Swivel-head camera e.g. for inspecting pipelines, uses grouped lamps arranged on separate segment

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DE202004014797U1 true DE202004014797U1 (en) 2004-12-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006128317A1 (en) * 2005-06-03 2006-12-07 Elpatronic Ag Method for illumination, and illumination arrangement
DE102017200784A1 (en) 2017-01-19 2018-07-19 Ibak Helmut Hunger Gmbh & Co Kg Inspection system for cavities

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006128317A1 (en) * 2005-06-03 2006-12-07 Elpatronic Ag Method for illumination, and illumination arrangement
DE102017200784A1 (en) 2017-01-19 2018-07-19 Ibak Helmut Hunger Gmbh & Co Kg Inspection system for cavities
DE102017200784B4 (en) 2017-01-19 2018-08-23 Ibak Helmut Hunger Gmbh & Co Kg Inspection system for cavities

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20050120

R150 Term of protection extended to 6 years

Effective date: 20070817

R151 Term of protection extended to 8 years

Effective date: 20100908

R152 Term of protection extended to 10 years
R152 Term of protection extended to 10 years

Effective date: 20120910

R071 Expiry of right
R071 Expiry of right