DE102011009463A1 - Device for determining position of objects e.g. tools, in manufacturing industry, has computing unit computing exact position of light source using data that is received from camera or light sensor, where source is arranged on object - Google Patents
Device for determining position of objects e.g. tools, in manufacturing industry, has computing unit computing exact position of light source using data that is received from camera or light sensor, where source is arranged on object Download PDFInfo
- Publication number
- DE102011009463A1 DE102011009463A1 DE201110009463 DE102011009463A DE102011009463A1 DE 102011009463 A1 DE102011009463 A1 DE 102011009463A1 DE 201110009463 DE201110009463 DE 201110009463 DE 102011009463 A DE102011009463 A DE 102011009463A DE 102011009463 A1 DE102011009463 A1 DE 102011009463A1
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- Germany
- Prior art keywords
- light
- light source
- camera
- exact position
- optical bandpass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/16—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using electromagnetic waves other than radio waves
- G01S5/163—Determination of attitude
Abstract
Description
Die vorliegende Erfindung betrifft eine Vorrichtung zur Positionsbestimmung von einem Objekt, die Kameras oder Lichtsensoren mit optischen Bandpassfiltern, Lichtquellen auf dem Objekt und eine Recheneinheit umfasst.The present invention relates to a device for determining the position of an object, comprising cameras or light sensors with optical bandpass filters, light sources on the object and a computing unit.
Die genaue Bestimmung der Position von Objekten in der industriellen Fertigung ist eine sehr nützliche und notwendige Gegebenheit. Die Kenntnis der Koordinaten der Werkzeuge und Werkstücke kann zur Qualitätssteigerung und Minimierung von Produktionskosten beitragen. So muss zum Beispiel beim Verschrauben von Zylinderköpfen die Reihenfolge der Schrauben eingehalten werden, damit keine Spannungen im Zylinderkopf entstehen und die Zylinderkopfdichtung gleichmäßig eingeklemmt wird.The exact determination of the position of objects in industrial production is a very useful and necessary fact. Knowing the coordinates of the tools and workpieces can increase quality and minimize production costs. For example, when screwing cylinder heads, the order of the bolts must be maintained so that no tension occurs in the cylinder head and the cylinder head gasket is evenly clamped.
Momentan gibt es mehrere Möglichkeiten die Position von einem Objekt zu bestimmen:
Mechanisch, zum Beispiel mit Drehgebern und Wegsensoren. Der Nachteil bei dem Verfahren ist, dass das System an eine Vorrichtung gebunden ist und mechanische Bauteile störend sind.There are currently several ways to determine the position of an object:
Mechanically, for example with encoders and displacement sensors. The disadvantage of the method is that the system is tied to a device and mechanical components are disruptive.
Positionsbestimmung durch Laufzeitdifferenz, zum Beispiel Global Positioning System (GPS) oder Ultraschall. Der Nachteil bei Funk ist, dass mit den, auf dem Markt verfügbaren, elektronischen Bauteilen die erreichbare Auflösung (ca. 50 cm) zu klein ist und meistens nicht ausreicht. Ein Ultraschallpositionsbestimmungssystem wird vom Schall beeinflusst der von den Pneumatikgeräten, die bei der Produktion verwendet werden, ausgeht.Position determination by transit time difference, for example Global Positioning System (GPS) or ultrasound. The disadvantage with radio is that with the electronic components available on the market, the achievable resolution (about 50 cm) is too small and usually not sufficient. An ultrasonic positioning system is influenced by the sound emanating from the pneumatic equipment used in production.
Positionsbestimmung nach dem optischen Verfahren mit einer Kamera die nach bestimmten, vorher aufgenommenen Mustern oder Objekten sucht. Dieses Verfahren ist sehr störungsanfällig, zum Beispiel durch schlechten Kontrast, schlechte Beleuchtung und Fremdeinstrahlung.Positioning according to the optical method with a camera looking for certain, previously recorded patterns or objects. This method is very susceptible to interference, for example due to poor contrast, poor lighting and external radiation.
Die Aufgabe der Erfindung ist es daher, eine Vorrichtung bereitzustellen, die es ermöglicht die Position von Objekten genau und störungsfrei zu bestimmen.The object of the invention is therefore to provide a device which makes it possible to determine the position of objects accurately and without interference.
Die Lösung der Aufgabe liegt in dem Zusammenwirken von einer/mehreren Lichtquellen auf einem Objekt, einer/mehreren Kameras oder Lichtsensoren mit optischen Bandpassfiltern und einer Recheneinheit.The solution to the problem lies in the interaction of one / more light sources on an object, one / more cameras or light sensors with optical bandpass filters and a computing unit.
Demgemäß stellt die vorliegende Erfindung eine Vorrichtung zur Positionsbestimmung von einem Objekt mit Lichtquellen zur Verfügung, die dadurch gekennzeichnet ist, dass sie eine oder mehrere Kameras oder Lichtsensoren mit optischen Bandpassfiltern, eine oder mehrere Lichtquellen auf einem Objekt, eine Recheneinheit zur Berechnung der genauen Position der Objekte mit Lichtquellen aus den von einer oder mehreren Kameras oder Lichtsensoren erhaltenen Daten umfasst.Accordingly, the present invention provides a device for determining the position of an object with light sources, which is characterized in that it comprises one or more cameras or light sensors with optical bandpass filters, one or more light sources on an object, a computing unit for calculating the exact position of the object Objects comprising light sources from the data obtained from one or more cameras or light sensors.
Die Wirkungsweise der Vorrichtung lässt sich folgender Maßen beschreiben:
Ein Objekt mit einer Lichtquelle befindet sich in einem von der Kamera oder Lichtsensor einsehbaren Bereich. Das Objekt mit der Lichtquelle kann sich bewegen oder stehen. Das Licht von der Lichtquelle wird durch den optischen Bandpassfilter, welcher vor dem Objektiv der Kamera oder Lichtsensor installiert ist, von der Fremdeinstrahlung befreit und zum Bildsensor der Kamera oder zum Lichtsensor durchgelassen. Die Daten der Kamera oder des Lichtsensors werden an die Recheneinheit übertragen und dort die genaue Position des Objekts mit der Lichtquelle berechnet. Die berechneten Koordinaten können für verschiedene Aufgaben verwendet werden. Zum Beispiel für die Darstellung der Bewegung des Objektes im Raum oder auf einer Fläche. Die Koordinaten können zum Beispiel auch für die Überwachung von Schraubvorgängen benutzt werden. Fall es Bereiche gibt die von einer Kamera oder Lichtsensor nicht einsehbar sind, können zusätzliche Kameras oder Lichtsensoren eingesetzt werden.The mode of operation of the device can be described as follows:
An object with a light source is located in an area visible by the camera or light sensor. The object with the light source can move or stand. The light from the light source is removed by the optical bandpass filter, which is installed in front of the lens of the camera or light sensor, from the foreign radiation and transmitted to the image sensor of the camera or to the light sensor. The data of the camera or the light sensor are transmitted to the arithmetic unit and there calculates the exact position of the object with the light source. The calculated coordinates can be used for different tasks. For example, for the representation of the movement of the object in space or on a surface. The coordinates can also be used, for example, for monitoring screwing operations. If there are areas that can not be seen by a camera or light sensor, additional cameras or light sensors can be used.
Als Nächstes wird ein Ausführungsbeispiel unter Hinweis auf die beigefügten Zeichnungen näher beschrieben.Next, an embodiment will be described in detail with reference to the accompanying drawings.
Beigefügte Zeichnungen:Attached drawings:
Auf einem Objekt (
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE201110009463 DE102011009463A1 (en) | 2011-01-24 | 2011-01-24 | Device for determining position of objects e.g. tools, in manufacturing industry, has computing unit computing exact position of light source using data that is received from camera or light sensor, where source is arranged on object |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE201110009463 DE102011009463A1 (en) | 2011-01-24 | 2011-01-24 | Device for determining position of objects e.g. tools, in manufacturing industry, has computing unit computing exact position of light source using data that is received from camera or light sensor, where source is arranged on object |
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DE102011009463A1 true DE102011009463A1 (en) | 2012-07-26 |
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DE201110009463 Ceased DE102011009463A1 (en) | 2011-01-24 | 2011-01-24 | Device for determining position of objects e.g. tools, in manufacturing industry, has computing unit computing exact position of light source using data that is received from camera or light sensor, where source is arranged on object |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0162713B1 (en) * | 1984-05-22 | 1990-08-29 | CAE Electronics Ltd. | Optical position and orientation measurement techniques |
US5227985A (en) * | 1991-08-19 | 1993-07-13 | University Of Maryland | Computer vision system for position monitoring in three dimensions using non-coplanar light sources attached to a monitored object |
US5440392A (en) * | 1991-10-11 | 1995-08-08 | Metronor As | Method and system for point by point measurement of spatial coordinates |
US5901236A (en) * | 1996-09-24 | 1999-05-04 | Komatsu Ltd. | Method and apparatus for measuring position by image processing |
US6608688B1 (en) * | 1998-04-03 | 2003-08-19 | Image Guided Technologies, Inc. | Wireless optical instrument for position measurement and method of use therefor |
-
2011
- 2011-01-24 DE DE201110009463 patent/DE102011009463A1/en not_active Ceased
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0162713B1 (en) * | 1984-05-22 | 1990-08-29 | CAE Electronics Ltd. | Optical position and orientation measurement techniques |
US5227985A (en) * | 1991-08-19 | 1993-07-13 | University Of Maryland | Computer vision system for position monitoring in three dimensions using non-coplanar light sources attached to a monitored object |
US5440392A (en) * | 1991-10-11 | 1995-08-08 | Metronor As | Method and system for point by point measurement of spatial coordinates |
US5901236A (en) * | 1996-09-24 | 1999-05-04 | Komatsu Ltd. | Method and apparatus for measuring position by image processing |
US6608688B1 (en) * | 1998-04-03 | 2003-08-19 | Image Guided Technologies, Inc. | Wireless optical instrument for position measurement and method of use therefor |
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Effective date: 20130724 |