FR2514918A1 - INSTALLATION FOR CONTACTLESS TRANSMISSION OF SIGNALS - Google Patents
INSTALLATION FOR CONTACTLESS TRANSMISSION OF SIGNALS Download PDFInfo
- Publication number
- FR2514918A1 FR2514918A1 FR8211864A FR8211864A FR2514918A1 FR 2514918 A1 FR2514918 A1 FR 2514918A1 FR 8211864 A FR8211864 A FR 8211864A FR 8211864 A FR8211864 A FR 8211864A FR 2514918 A1 FR2514918 A1 FR 2514918A1
- Authority
- FR
- France
- Prior art keywords
- light
- light emitter
- installation
- receiver
- designed
- 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.)
- Pending
Links
- 238000009434 installation Methods 0.000 title claims description 10
- 230000005540 biological transmission Effects 0.000 title description 10
- 230000008054 signal transmission Effects 0.000 claims abstract description 14
- 239000013307 optical fiber Substances 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 abstract description 6
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
- H04B10/801—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water using optical interconnects, e.g. light coupled isolators, circuit board interconnections
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Optical Communication System (AREA)
- Optical Couplings Of Light Guides (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
Description
" Installation pour transmission sans contact de
signaux "."Installation for contactless transmission of
signals ".
L'invention concerne une installation destinée à la transmission sans contact de signaux entre des éléments fixes et éléments tournante, installation comportant un émetteur de lumière et un récepteur de lumiére sur lequel il peut influer. The invention relates to an installation intended for the contactless transmission of signals between fixed elements and rotating elements, installation comprising a light emitter and a light receiver on which it can influence.
Pour transmettre des signaux entre des éléments fixes et tournants, il est connu d'utiliser des voies de transmission de lumière. Ces voies optiques de transmission offrent l'avantage de permettre de transmettre des signaux sans utiliser de oontacts, ce qui permet de supprimer les bagues collectrices qui sont usuelles autrement. To transmit signals between fixed and rotating elements, it is known to use light transmission channels. These optical transmission channels offer the advantage of making it possible to transmit signals without using oontacts, which makes it possible to eliminate the slip rings which are customary otherwise.
Malgré cet avantage, il n'est pas toujours possible d'utiliser des voies optiques de transmission, parce que les conditions spatiales ou des charges d'environnement dans l'exploitation (poussière) font obstacle à leur mise en oeuvre. Despite this advantage, it is not always possible to use optical transmission channels, because the spatial conditions or environmental loads in the operation (dust) hinder their implementation.
Etant donné qu'une liaison visuelle sans incident entre un émetteur et un récepteur de lumière est une condition nécessaire pour l'emploi de voies de transmission optiques, il se pose des problèmes, par exemple lorsque le parcours de transmission de lumière ne peut pas être disposé dans l'axe de rotation. Dans un tel cas,- on peut réaliser uniquement une transmission de signaux intermittente et non pas une transmission continue, ce qui n'est pas suffisant pour de nombreux cas d'utilisation. Since an incident-free visual connection between a light emitter and receiver is a necessary condition for the use of optical transmission channels, problems arise, for example when the light transmission path cannot be arranged in the axis of rotation. In such a case, it is possible to carry out only an intermittent signal transmission and not a continuous transmission, which is not sufficient for many use cases.
L'invention a pour but, de prévoir une installation de transmission optique destinée à transmettre des signaux entre des éléments fixes et tournants, et qui soit capable, indépendamment des conditions spatiales, d'assurer une transmission continue de signaux. The object of the invention is to provide an optical transmission installation intended to transmit signals between fixed and rotating elements, and which is capable, independently of the spatial conditions, of ensuring continuous transmission of signals.
L'invention concerne à cet effet une installation pour la transmission de signaux, du type indiqué plus haut, qui est caractérisée en ce que l'émetteur de lumière dont est pourvu un élément est disposé excentriquement par rapport à l'axe de rotation, et le récepteur de lumière est influencé par l'intermédiaire dLun faisceau de fibres optiques, dont les autres extrémités juxtaposées forment un anneau pouvant êtres lors de la rotation, balayé par l'émetteur de lumière. To this end, the invention relates to an installation for the transmission of signals, of the type indicated above, which is characterized in that the light emitter with which an element is provided is arranged eccentrically with respect to the axis of rotation, and the light receiver is influenced by a bundle of optical fibers, the other juxtaposed ends of which form a ring which can be rotated, swept by the light emitter.
Divers développements et modes de réalisation avantageux de l'invention seront indiqués dans la suite. Various developments and advantageous embodiments of the invention will be indicated below.
La description ci-après et le dessin annexé se rapportent à un exemple de réalisation de l'invention. The description below and the accompanying drawing relate to an exemplary embodiment of the invention.
La figure unique de ce dessin est une vue schématique d'ensemble montrant le principe du dispositif conforme à l'invention. The single figure of this drawing is a schematic overview showing the principle of the device according to the invention.
Sur la face frontale supérieure 2 d'un rotor 1 sont montés trois émetteurs de lumière 3, 4, 5, par exemple des diodes électroluminescentes. L'émetteur de lumière 5 est situé dans l'axe de rotation du rotor 1, tandis que les émetteurs de lumière 3 et 4 sont chacun à une distance différente de l'axe de rotation. Lorsque le rotor 1 tourne l'émetteur de lumière 5 reste par conséquent dans sa position, alors que les émetteurs de lumière 3 et 4 décrivent chacun un cercle ayant comme rayon leur distance à l'axe. On the upper front face 2 of a rotor 1 are mounted three light emitters 3, 4, 5, for example light-emitting diodes. The light emitter 5 is located in the axis of rotation of the rotor 1, while the light emitters 3 and 4 are each at a different distance from the axis of rotation. When the rotor 1 rotates the light emitter 5 therefore remains in its position, while the light emitters 3 and 4 each describe a circle having as a radius their distance from the axis.
En vue de recevoir les signaux lumineux provenant des émetteurs de lumière 3, 4, 5 sont prévus trois récepteurs de lumière 6, 7, 8, en particulier des phototransistors, qui sont montés chacun - d'une manière non représentée - en un emplacement choisi sur l'élément fixe. Le récepteur de lumière 8, qui peut aussi être une photorésistance, est disposé exactement dans l'axe de rotation du rotor 1 et reçoit en conséquence directement les signaux lumineux provenant de l'émetteur de lumière 5 ; I1 pourrait cependant être disposé en un emplacement quelconque et recevoir la lumière par l'intermédiaire d'un faisceau 14 de fibres optiques. In order to receive the light signals from the light emitters 3, 4, 5 there are provided three light receivers 6, 7, 8, in particular phototransistors, which are each mounted - in a manner not shown - at a chosen location on the fixed element. The light receiver 8, which can also be a photoresistor, is placed exactly in the axis of rotation of the rotor 1 and consequently receives directly the light signals coming from the light emitter 5; I1 could however be placed in any location and receive light via a bundle 14 of optical fibers.
Les signaux lumineux envoyés par les émetteurs de lumière 3 et 4, sont transmis par des fibres optiques 9. Ces fibres optiques sont, à une extrémité, disposées à côté les unes des autres de telle manière, qu'elles forment un anneau 10, 11 pouvant être, lors de la rotation, balayé par l'émetteur de lumière 3, 4 associé à l'anneau correspondant. Les autres extrémités sont par contre guidées au-dessus des anneaux 10, 11 et dirigées sous forme de faisceaux 12, 13 vers le récepteur de lumière associé au faisceau correspondant. La lumière provenant des émetteurs de lumière 3, 4 situés en dehors de l'axe de rotation est par conséquent captée progressivement par au moins l'une des fibres optiques 9 formant les anneaux 10, 11, et transmise au récepteur de lumière 6, 7 associé au faisceau correspondant. The light signals sent by the light emitters 3 and 4 are transmitted by optical fibers 9. These optical fibers are, at one end, arranged next to each other in such a way that they form a ring 10, 11 can be, during rotation, scanned by the light emitter 3, 4 associated with the corresponding ring. The other ends are on the other hand guided over the rings 10, 11 and directed in the form of beams 12, 13 towards the light receiver associated with the corresponding beam. The light coming from the light emitters 3, 4 located outside the axis of rotation is therefore gradually picked up by at least one of the optical fibers 9 forming the rings 10, 11, and transmitted to the light receiver 6, 7 associated with the corresponding beam.
Suivant les conditions exigées dans l'installation, les émetteurs de lumière peuvent transmettre de la lumière visible, infra-rouge ou chromatique. Il peut également y avoir avantage à utiliser des types de lumière différents pour les diverses voies de transmission individuelles. Bien entendu, les émetteurs et récepteurs de lumière doivent à cet effet être conçus de façon appropriée. Depending on the conditions required in the installation, the light emitters can transmit visible, infrared or chromatic light. It may also be advantageous to use different types of light for the various individual transmission paths. Of course, light transmitters and receivers must be designed for this purpose.
La transmission de signaux entre élément fixe et élément tournant peut aussi s'effectuer par modulation de la lumière émise, au moyen d'un modulateur commandé par le signal à transmettre. Comme types de modulation conviennent notamment la synchronisation, la modulation de la largeur d'impulsion ou la modulation d'amplitude. Dans le cas où l'on prévoit plusieurs voies de transmission de lumière entre éléments fixes et tournants, on peut également utiliser des types de modulation différents. The transmission of signals between fixed element and rotating element can also be carried out by modulation of the light emitted, by means of a modulator controlled by the signal to be transmitted. Suitable modulation types include synchronization, pulse width modulation or amplitude modulation. If several light transmission channels are provided between fixed and rotating elements, different types of modulation can also be used.
Le système optique de transmission de signaux conformes à l'invention présente l'avantage d'une transmission continue de signaux, quand bien même les émetteurs de lumière et récepteurs de lumière ne se situent pas dans une même ligne visuelle. Le système de transmission de signaux peut de plus être exploité selon le mode de fonctionnement inverse, c'est-à-dire avec des anneaux de fibres optiques tournants et un émetteur ou récepteur de lumière fixe, suivant les exigences et données qui se présentent, dans chaque cas, On a en outre la possibilité, avec cette voie de transmission de signaux, de mettre en oeuvre un procédé multiplex. The optical signal transmission system according to the invention has the advantage of continuous signal transmission, even if the light emitters and light receivers are not located in the same line of vision. The signal transmission system can also be operated in the reverse operating mode, that is to say with rotating optical fiber rings and a fixed light emitter or receiver, according to the requirements and data presented, in each case, there is also the possibility, with this signal transmission channel, of implementing a multiplex method.
Claims (7)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813140978 DE3140978A1 (en) | 1981-10-15 | 1981-10-15 | Device for signal transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2514918A1 true FR2514918A1 (en) | 1983-04-22 |
Family
ID=6144178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8211864A Pending FR2514918A1 (en) | 1981-10-15 | 1982-07-06 | INSTALLATION FOR CONTACTLESS TRANSMISSION OF SIGNALS |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5875937A (en) |
| DE (1) | DE3140978A1 (en) |
| FR (1) | FR2514918A1 (en) |
| IT (1) | IT1190898B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2680243A1 (en) * | 1991-08-06 | 1993-02-12 | Bertin & Cie | Remote measurement device for a rotary member of a machine |
| EP0598924A1 (en) * | 1992-06-18 | 1994-06-01 | Kabushiki Kaisha Yaskawa Denki | Non-contact power transmission apparatus, non-contact signal transmitter, separation type machine using them and control method thereof |
| WO1995035605A1 (en) * | 1994-06-21 | 1995-12-28 | Zentrum Für Angewandte Mikroelektronik Und Neue Technologien Der Bayerischen Fachhochschulen (Zam) E.V. | Device for transmitting and receiving rotating light signals |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3626316A1 (en) * | 1986-08-02 | 1988-02-04 | Krauss Maffei Ag | Mast, which can be elevated, for a combat vehicle |
| JPH06230249A (en) * | 1993-01-29 | 1994-08-19 | Kita Syst:Kk | Method and device for coupling optical function elements |
| DE4428790C1 (en) * | 1994-08-13 | 1996-02-22 | Bfi Betriebstechnik Gmbh | Bidirectional information transmission appts. for telemetry communication through rotor-stator arrangement |
| DE19625870A1 (en) * | 1996-06-27 | 1998-01-08 | Schleifring & Apparatebau Gmbh | Device for receiving optical signals with a light-guiding object |
| JP2007274223A (en) * | 2006-03-30 | 2007-10-18 | Kyoto Univ | Data transmitter between relatively rotating members |
| DE102014225097A1 (en) * | 2014-12-08 | 2016-06-09 | Zf Friedrichshafen Ag | Device for contactless optical data transmission |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3019132A1 (en) * | 1980-05-20 | 1981-11-26 | Krauss-Maffei AG, 8000 München | Non-contact communication link between moving components - has fibre=optic loop set in groove and continuously transmitting to opto-electrical sensor |
-
1981
- 1981-10-15 DE DE19813140978 patent/DE3140978A1/en not_active Withdrawn
-
1982
- 1982-06-30 IT IT22152/82A patent/IT1190898B/en active
- 1982-07-06 FR FR8211864A patent/FR2514918A1/en active Pending
- 1982-08-11 JP JP57138641A patent/JPS5875937A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3019132A1 (en) * | 1980-05-20 | 1981-11-26 | Krauss-Maffei AG, 8000 München | Non-contact communication link between moving components - has fibre=optic loop set in groove and continuously transmitting to opto-electrical sensor |
Non-Patent Citations (2)
| Title |
|---|
| FEINWERKTECHNIK & MESSTECHNIK, vol. 87, no. 5, juillet/août 1979, pages 233-237, Munich, DE; D. HEIL et al.: "Elektrooptischer Dreh}bertrager" * |
| IBM TECHNICAL DISCLOSURE BULLETIN, vol. 7, no. 10, mars 1965, page 939, New York, US; N.D KLINE et al.: "Optical information coupling between stationary and rotating systems" * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2680243A1 (en) * | 1991-08-06 | 1993-02-12 | Bertin & Cie | Remote measurement device for a rotary member of a machine |
| EP0598924A1 (en) * | 1992-06-18 | 1994-06-01 | Kabushiki Kaisha Yaskawa Denki | Non-contact power transmission apparatus, non-contact signal transmitter, separation type machine using them and control method thereof |
| EP0598924A4 (en) * | 1992-06-18 | 1995-01-25 | Yaskawa Denki Seisakusho Kk | Non-contact power transmission apparatus, non-contact signal transmitter, separation type machine using them and control method thereof. |
| US5637973A (en) * | 1992-06-18 | 1997-06-10 | Kabushiki Kaisha Yaskawa Denki | Noncontacting electric power transfer apparatus, noncontacting signal transfer apparatus, split-type mechanical apparatus employing these transfer apparatus and a control method for controlling same |
| EP0845793A1 (en) * | 1992-06-18 | 1998-06-03 | Kabushiki Kaisha Yaskawa Denki | Noncontacting signal transfer apparatus |
| EP0845794A1 (en) * | 1992-06-18 | 1998-06-03 | Kabushiki Kaisha Yaskawa Denki | Noncontacting signal transfer apparatus |
| WO1995035605A1 (en) * | 1994-06-21 | 1995-12-28 | Zentrum Für Angewandte Mikroelektronik Und Neue Technologien Der Bayerischen Fachhochschulen (Zam) E.V. | Device for transmitting and receiving rotating light signals |
| US6043916A (en) * | 1994-06-21 | 2000-03-28 | Schleifring Und Apparatebau Gmbh | System for transmitting and receiving signals along a circular path |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3140978A1 (en) | 1983-05-05 |
| JPS5875937A (en) | 1983-05-07 |
| IT8222152A0 (en) | 1982-06-30 |
| IT1190898B (en) | 1988-02-24 |
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