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WO2005050879A1 - Dispositif pour la transmission de donnees entre un composant mobile et un composant fixe - Google Patents

Dispositif pour la transmission de donnees entre un composant mobile et un composant fixe Download PDF

Info

Publication number
WO2005050879A1
WO2005050879A1 PCT/DE2004/002550 DE2004002550W WO2005050879A1 WO 2005050879 A1 WO2005050879 A1 WO 2005050879A1 DE 2004002550 W DE2004002550 W DE 2004002550W WO 2005050879 A1 WO2005050879 A1 WO 2005050879A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical
fiber
coupling
arrangement according
component
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.)
Ceased
Application number
PCT/DE2004/002550
Other languages
German (de)
English (en)
Inventor
Jürgen Bauer
Axel Kellner
Uwe Schaller
Otto JÜNEMANN
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.)
Jenoptik Optical Systems GmbH
Original Assignee
Jenoptik Optical Systems GmbH
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 Jenoptik Optical Systems GmbH filed Critical Jenoptik Optical Systems GmbH
Publication of WO2005050879A1 publication Critical patent/WO2005050879A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/3604—Rotary joints allowing relative rotational movement between opposing fibre or fibre bundle ends
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type

Definitions

  • the invention relates to an arrangement for data transmission between a fixed and a movable component with at least one optical transmitter on one of the components for transmission and at least one optical receiver on the other component for receiving modulated optical radiation.
  • the invention is particularly applicable in robotics, wind power generators,
  • Electrical sliding contacts and capacitive or inductive methods are mainly used for data transmission between a fixed and a moving component.
  • An optical signal transmission between the fixed and the movable component is interference-free and allows a high data rate (bandwidth), but for continuous data transmission it requires that the transmitter and receiver are constantly facing each other.
  • the light guide body cannot be used universally, since new production forms have to be produced for each slip ring with different diameters and also for linear arrangements.
  • the coupling of the light via the prism arrangement is not effective and can change the efficiency during the rotation.
  • the object of the invention is to implement optical signal transmission in a technically simple manner with low attenuation losses.
  • this object is achieved in an arrangement of the type mentioned at the outset in that at least one optical fiber is provided for the transmission of the modulated optical radiation, in the case of which coupling and decoupling centers are used in the direction of the fiber axis for directional beam coupling out or coupling in Fiber-guided modulated optical radiation are incorporated into the surface of the optically conductive fiber core as impurities of the total reflection.
  • An advantageous embodiment of the invention consists in that at least one ring composed of a plurality of optical fibers is inserted in at least one of two components which can be rotated relative to one another, that each optical fiber is connected to an optical transmitter and that each ring has at least one pair of optical receivers is assigned to the opposite component.
  • the optical transmitters are modulated synchronously.
  • the invention ensures that the optical radiation emerging laterally from the optical fiber is permanently received by a receiver located opposite the fiber or a fiber piece and moved relative to the fiber or the fiber piece.
  • the use of several receivers guarantees a interference-free signal when the receiver signals are superimposed, even if a receiver temporarily does not receive any light.
  • a particular advantage of the arrangement according to the invention is the very simple structure. It can e.g. B. conventional plastic fibers can be used, the laying of which in fiber rings or in straight-line arrangements is easy to implement.
  • At least one optical fiber in a straight alignment should be attached to at least one of two components that can be moved linearly relative to one another and at least one optical receiver on the opposite component should be assigned to each optical fiber.
  • At least one further optical fiber is provided for the transmission of the modulated optical radiation, which is directed with one end face to the coupling-out centers and with the other end face to a receiver.
  • a special embodiment of the invention provides that in each of the components at least one optical fiber is inserted with coupling or decoupling centers incorporated into the surface of the optically conductive fiber core in the direction of the fiber axis, of which each fiber has an optical transmitter on the front of one component and each fiber on the other component is connected at the end face to an optical receiver, and that the fiber axes of the opposing fibers are directed parallel to one another.
  • An embodiment for bidirectional data transmission provides that at least one in each of the components optical fiber is inserted, on the input end of an optical transmitter and on the other end of the fiber an optical filter and a receiver are arranged on the fiber end, the transmission wavelength on one component being different from the transmission wavelength on the other component and the optical filters each Block the transmission wavelength generated on the fiber.
  • the two last-mentioned configurations are suitable both for components which can be rotated relative to one another and displaceable along a straight line, in that the optical fibers are laid as rings or in a straight line.
  • the optical fibers should advantageously have a length in which the signal propagation time in the fiber is less than the sampling time of a logical item of information.
  • Fig. 1 shows a component with an inlaid fiber inserted in a plan view and in side view with the opposite component and receivers attached to it
  • Fig. 2 shows the directional radiation from a prepared optical fiber
  • Fig. 3 shows an arrangement with additional receiving fibers for radiation transmission to the receivers
  • Fig. 4 shows an arrangement for a linear movement between a fixed and a movable component
  • Fig. 5 shows a component with a plurality of fibers inserted in a ring and associated optical transmitters in a plan view and in a side view with the opposite component and receivers attached to it
  • Fig. 6 shows an arrangement for bidirectional data transmission
  • Fig. 9 shows an arrangement with a pair of fiber rings, one of which serves as a transmitting ring and the other as a receiving ring
  • FIG. 10 shows an arrangement for bidirectional data transmission via two transmitting and / or receiving rings.
  • FIG. 11 shows an arrangement with opposing optical fibers with incorporated impurities in the total reflection
  • an optical fiber 2 is provided in a fixed component 1, provided with an optical transmitter 3 which is coupled in at the end for emitting modulated optical radiation.
  • a laser diode provided with a control 4 serves as the optical transmitter.
  • Optical receivers 5 and 6 on an opposite rotatable component 7 serve to continuously receive the modulated optical radiation emitted laterally by the fiber ring.
  • the optical fiber 2 into which outcoupling centers serving as directional outcouplings are incorporated into the surface of the optically conductive fiber core in the direction of the fiber axis as directional defects of the total reflection.
  • the radiation is therefore not diffuse, but in a directed form, as a result of which a maximum of scattered radiation can be received by one of the receivers 5 and 6 located opposite one another.
  • the intensity of the scattered radiation at the outcoupling centers must be chosen so that the decoupling of the scattered light from the fiber and the attenuation of the radiation in the fiber form a compromise.
  • decoupling centers into a plastic optical fiber using a knurled wheel has proven to be very simple and effective. With this, periodic, prismatic coupling-out centers at a defined distance into the surface of the Plastic optical fiber are introduced. By varying the contact pressure, the intensity of the scattered light emitted by the optical fiber changes.
  • receiving fibers are particularly useful if, for design reasons, it is not possible to arrange a receiver in relation to the emitting optical fiber (FIG. 3).
  • optical fibers prepared in this way can be laid in multiple geometric shapes, depending on the relative movement that the two mutually movable components are to perform.
  • the ring-shaped arrangement already described offers itself, in the case of a linear movement, however, a straight-line orientation (FIG. 4).
  • the optical fiber 2 is divided along the fiber axis into sections, of which a section Ai contains the coupling-out centers and another section A 2 is untreated and has no decoupling centers.
  • the untreated section A 2 is led out of the component 1 on the side facing away from the other component 7 and optically coupled to the transmitter 3.
  • bidirectional data transmission is also easy to implement, in that two ring systems made of optical fibers 2 and 2 'with opposing receivers 5, 6, 5' and 6 'on different diameters of the components 1 and 7 (shown in dashed lines in FIG. 6) or rectilinear fiber systems are laterally offset on the components.
  • Fig. 7 an arrangement is described with the transit time differences L ⁇ -L 2 in a fiber segment FS can be minimized by the modulated optical radiation in opposite directions in two, provided as part of a ring on one of the two mutually rotatable components optical fibers 2 'and 2 '' is coupled in and the two receiver signals of the receivers 5 and 6 are additively or alternatively linked to one another by AND or by OR circuits.
  • the optically modulated radiation with a wavelength ⁇ of a laser diode that is preferably used is coupled into the end face into the optical fiber 2 ′.
  • the radiation from the disturbed fiber surface takes place over the entire length of the transmission laser ring and is received by the reception fiber ring via its coupling-in centers and guided to the receiver 5 ', which is located on a ring end of the fiber 2''.
  • optical fibers 2 'and 2''with disturbed fiber cores in the form of incorporated decoupling or coupling centers are inserted in the form of rings in the mutually movable components 1 and 7 for bidirectional data transmission.
  • an optical transmitter 3' and 3 '' designed as a laser diode is arranged on the fiber end on the input side and an optical filter 9 'and 9''and a receiver 5' and 5 '' are arranged on the output fiber end ,
  • the optically modulated radiation of the transmission wavelengths ⁇ i or ⁇ 2 is emitted from the one fiber ring via the incorporated coupling or decoupling centers and received by the decoupling or coupling centers of the other fiber ring.
  • the transmission wavelengths ⁇ i and ⁇ 2 and Optical filters 9 'and 9''must be selected so that crosstalk between the two channels does not occur.
  • the radiation transfer between transmitting and / or receiving fibers can be seen in FIG. 11.
  • the optically modulated radiation covers different lengths of travel between the transmitter and the receiver (maximum difference of the optical paths is equal to the circumference of the fiber ring), the travel time differences for applications in robot technology at transmission frequencies of ⁇ 5 MHz do not yet play Role.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

L'invention concerne un dispositif pour la transmission de données entre un composant fixe et un composant mobile. L'objectif de l'invention est d'obtenir une transmission de signaux optique techniquement simple avec de faibles pertes d'atténuation. A cet effet, pour la transmission d'un rayonnement optique modulé entre au moins un émetteur optique, placé sur un des composants, et au moins un récepteur optique, placé sur l'autre composant, on utilise une fibre optique dans laquelle, et dans le sens axial de celle-ci, des centres d'entrée ou de sortie, servant à l'entrée ou à la sortie dirigée du rayonnement, sont formés dans la surface du coeur optiquement conducteur de la fibre pour constituer des points perturbant la réflexion totale pour le rayonnement optique modulé guidé dans la fibre optique.
PCT/DE2004/002550 2003-11-18 2004-11-17 Dispositif pour la transmission de donnees entre un composant mobile et un composant fixe Ceased WO2005050879A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10353891.7 2003-11-18
DE10353891A DE10353891B4 (de) 2003-11-18 2003-11-18 Anordnung zur Datenübertragung zwischen einem feststehenden und einem beweglichen Bauteil

Publications (1)

Publication Number Publication Date
WO2005050879A1 true WO2005050879A1 (fr) 2005-06-02

Family

ID=34609094

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PCT/DE2004/002550 Ceased WO2005050879A1 (fr) 2003-11-18 2004-11-17 Dispositif pour la transmission de donnees entre un composant mobile et un composant fixe

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DE (1) DE10353891B4 (fr)
WO (1) WO2005050879A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009147945A (ja) * 2007-12-17 2009-07-02 Siemens Ag 相対回転可能な第１機械部品から第２機械部品への光通信手段を備えた機械
WO2014056524A1 (fr) * 2012-10-09 2014-04-17 Fraunhofer Gesellschaft Zur Förderung Der Angew. Forschung E.V. Procédé et dispositif de transmission de données
EP2876471A1 (fr) * 2013-11-22 2015-05-27 BGB Engineering Limited Transmission de données entre des corps relativement mobiles
CN110463079A (zh) * 2017-03-20 2019-11-15 罗伯特·博世有限公司 光学接口
US11442234B2 (en) 2018-03-29 2022-09-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device and method for transferring light between at least one optoelectronic component and at least one optical waveguide
EP4254828A1 (fr) * 2022-03-30 2023-10-04 General Dynamics Land Systems - Canada Corporation d.b.a. General Dynamics Mission Systems - Canada Système et procédé de transmission optique de données entre des anneaux toroidaux

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008030187B4 (de) * 2008-06-26 2010-07-01 Siemens Aktiengesellschaft Vorrichtung zur Übertragung von optischen Signalen zwischen relativ zueinander drehbaren Baugruppen (Drehübertrager)
JP5385604B2 (ja) * 2008-12-25 2014-01-08 株式会社トプコン 光信号伝送装置
DE102014215172A1 (de) * 2013-08-01 2015-02-05 Hirschmann Automation And Control Gmbh Optische Datenübertragung über einen Schleifring eines Kranes
WO2017121453A1 (fr) 2016-01-14 2017-07-20 Sew-Eurodrive Gmbh & Co. Kg Système comprenant une première partie et une seconde partie
IT202100008009A1 (it) * 2021-03-31 2022-10-01 Svt Holding S P A Assieme di trasmissione segnale

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5535033A (en) * 1993-12-15 1996-07-09 Siemens Aktiengesellschaft Contactless data transmission device
JP2001308798A (ja) * 2000-04-21 2001-11-02 Hokuyo Automatic Co 側面漏光ファイバ式光データ伝送装置
US20020037133A1 (en) * 2000-08-22 2002-03-28 Unsworth John D. Side firing optical fiber

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3812203A1 (de) * 1988-04-13 1989-10-26 Fraunhofer Ges Forschung Anordnung zur ein-/auskopplung von licht in/aus einem lichtwellenleiter
WO1992015841A1 (fr) * 1991-03-06 1992-09-17 Elcede Gmbh Systeme pour la transmission de lumiere
US5297225A (en) * 1992-06-04 1994-03-22 Focal Technologies Incorporated Off-axis optical rotary joint
DE19639210A1 (de) * 1996-09-25 1998-03-26 Kuka Wehrtechnik Gmbh Vorrichtung zur Datenübertragung, insbesondere in Fahrzeugen
JP2001510906A (ja) * 1997-07-17 2001-08-07 シュライフリンク ウント アパラーテバウ ゲーエムベーハー 動的にデカップルされた２つのシステム間での光信号伝送装置
AUPP196698A0 (en) 1998-02-20 1998-03-19 Siemens Plessey Electronic Systems Pty Ltd Locator beacon
US6108483A (en) * 1998-10-30 2000-08-22 General Electric Company Rotary optical link using a radiated wave in a localized area
US6396613B1 (en) * 1998-12-22 2002-05-28 General Electric Company Optical high speed communications for a computed tomography x-ray machine
DE19904461C2 (de) * 1999-02-04 2002-01-17 Stemmann Technik Gmbh Anordnung zur berührungslosen Übertragung von Daten
US6453088B1 (en) * 2000-07-31 2002-09-17 Litton Systems, Inc. Segmented waveguide for large diameter fiber optic rotary joint
DE20021834U1 (de) * 2000-12-22 2001-03-15 Schleifring und Apparatebau GmbH, 82256 Fürstenfeldbruck Vorrichtung zur Lichteinkopplung in eine lichtleitende Schicht innerhalb einer hybrid aufgebauten elektrisch-optischen Leiterplatte
DE10160233B4 (de) * 2001-02-02 2008-10-02 Schleifring Und Apparatebau Gmbh Vorrichtung zur Übertragung optischer Signale unter seitlicher Ankopplung an Lichtwellenleiter
DE10121529B4 (de) * 2001-05-03 2004-09-30 Infineon Technologies Ag Lichtleiteranordnung zur seriellen, bidirektionalen Signalübertragung und optische Leiterplatine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5535033A (en) * 1993-12-15 1996-07-09 Siemens Aktiengesellschaft Contactless data transmission device
JP2001308798A (ja) * 2000-04-21 2001-11-02 Hokuyo Automatic Co 側面漏光ファイバ式光データ伝送装置
US20020037133A1 (en) * 2000-08-22 2002-03-28 Unsworth John D. Side firing optical fiber

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 03 3 April 2002 (2002-04-03) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009147945A (ja) * 2007-12-17 2009-07-02 Siemens Ag 相対回転可能な第１機械部品から第２機械部品への光通信手段を備えた機械
WO2014056524A1 (fr) * 2012-10-09 2014-04-17 Fraunhofer Gesellschaft Zur Förderung Der Angew. Forschung E.V. Procédé et dispositif de transmission de données
EP2876471A1 (fr) * 2013-11-22 2015-05-27 BGB Engineering Limited Transmission de données entre des corps relativement mobiles
CN110463079A (zh) * 2017-03-20 2019-11-15 罗伯特·博世有限公司 光学接口
US11474195B2 (en) 2017-03-20 2022-10-18 Robert Bosch Gmbh Optical interface
US11442234B2 (en) 2018-03-29 2022-09-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device and method for transferring light between at least one optoelectronic component and at least one optical waveguide
EP4254828A1 (fr) * 2022-03-30 2023-10-04 General Dynamics Land Systems - Canada Corporation d.b.a. General Dynamics Mission Systems - Canada Système et procédé de transmission optique de données entre des anneaux toroidaux
US12055764B2 (en) 2022-03-30 2024-08-06 General Dynamics Land Systems—Canada System and method for optical transmission of data between toroidal rings

Also Published As

Publication number Publication date
DE10353891B4 (de) 2007-03-29
DE10353891A1 (de) 2005-06-30

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