EP1127221B1 - Method and device for supplying electrical power to electrical consumers in or on a pneumatic device - Google Patents

Method and device for supplying electrical power to electrical consumers in or on a pneumatic device Download PDF

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Publication number
EP1127221B1
EP1127221B1 EP00960546A EP00960546A EP1127221B1 EP 1127221 B1 EP1127221 B1 EP 1127221B1 EP 00960546 A EP00960546 A EP 00960546A EP 00960546 A EP00960546 A EP 00960546A EP 1127221 B1 EP1127221 B1 EP 1127221B1
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EP
European Patent Office
Prior art keywords
pneumatic
control
converter
signals
pressure
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EP00960546A
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German (de)
French (fr)
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EP1127221A1 (en
Inventor
Peter Christiani
Dieter Staniczek
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Festo SE and Co KG
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Festo SE and Co KG
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y10T137/0396—Involving pressure control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87217—Motor

Definitions

  • the invention relates to a method and an apparatus for Supply of electrical consumers in or on a pneumatic device with electrical supply energy, wherein the pneumatic device via a pneumatic Line is connected to a pressure source.
  • Pneumatic devices to be controlled need to one the supply of compressed air via a pneumatic Line and other electrical supply lines to Supply of electrical supply energy and electrical Control signals and, if necessary, feedback lines for Feedback of sensor signals.
  • a pneumatic Device several control devices, such as valves, and several sensors arranged, the increases accordingly Number of electrical wires, often leading to one confusing line arrangement and at high cost for performs the installation, maintenance and repair.
  • the advantage of the device according to the invention is in particular in that about the already existing pneumatiche Line also for electrical consumers in the pneumatic device required supply energy is transmitted so that related lines are omitted can.
  • the transmission takes place via the gaseous Medium or the line by means of sound waves, microwaves, Pressure changes or by means of the flow energy of the pressurized gaseous medium. For this reason it is Energy transfer also with the usually existing Plastic lines possible.
  • the conversion to electrical Supply energy takes place directly on or in the pneumatic device.
  • the pneumatic Device of pressure of the gaseous medium in the pneumatic Cable for driving a microturbine with electrical Generator used that is, the flow energy of the pressurized gaseous medium is directly in or on the pneumatic device in electrical Supply energy implemented.
  • the Sound waves or pressure changes using the piezo effect or capacitive or inductive implementation processes at least partially in electrical supply energy in the pneumatic device implemented.
  • a piezoelectric, capacitive or inductive Converter or a piston oscillator arrangement is expediently used.
  • Such a A converter or a piston oscillator arrangement is preferred also in a via the pneumatic line with the pneumatic Device connected control and / or data receiving device to convert electrical energy into sound waves to be supplied to the pneumatic line or Pressure changes provided.
  • the transmission of also takes place in an advantageous manner Control and / or sensor signals between the electronic Control and / or data receiving device and the pneumatic Device via the pneumatic line by means of Sound signals, microwaves or pressure changes.
  • Sound signals, microwaves or pressure changes are preferably different frequencies and / or Signal sequences and / or modulations and / or pressure pulse sequences provided, the transmission in particular bidirectional takes place so that sensor signals can also be reported.
  • Control and / or data receiving device and the pneumatic Device with at least a first converter Conversion of electrical signals into sound signals or Pressure changes and with at least a second converter Conversion of sound signals or pressure changes into provide electrical signals.
  • a first converter and a second converter also designed as a combined bidirectional converter can be.
  • the following are particularly suitable for implementation piezoelectric, but also inductive or capacitive Converter.
  • the converters for supplying energy supply can advantageously identical to the converters for Conversion between sound signals or pressure changes and electrical control and / or sensor signals, because by performing these double functions a more optimal Exploitation is possible.
  • the transmission of Control and / or sensor signals between the electronic Control and / or data receiving device and the pneumatic Device also wireless, in particular by radio or Infrared signals, or via an in or on the pneumatic line arranged or integrated Light guides are made.
  • the tax and / or Data receiving device and the at least one pneumatic device expediently each with a Light transmitter and / or a light receiver provided.
  • a storage device especially a capacitor or a Storage cell, for storing in or on the pneumatic Device generated electrical supply energy intended.
  • a converter in particular designed as a microcomputer in or on the pneumatic device is used advantageously Way of converting the transmitted signals into control signals for at least one control device, for example a Valve, in the pneumatic device and / or for Conversion of sensor signals into signals to be transmitted.
  • the control and / or data receiving device is preferred designed as a bus station connected to a data bus.
  • Several pneumatic can be connected to this bus station Devices directly or via pneumatic lines Branches are connected.
  • the at least one converter and the means for providing it of electrical supply energy are expedient integrated in the pneumatic device, so that there are compact arrangements for complete Installation only via a single pneumatic line must be connected.
  • Invention is a pneumatic cylinder 10 via an electrical Data bus 11, for example a field bus, controlled.
  • a pneumatic pressure source 12 is via a z. B. from flexible plastic material existing pneumatic line 13 connected to the pneumatic cylinder 10.
  • In a face Area of the housing 14 of the pneumatic cylinder 10 are two valves 15, 16 integrated, for example as 3/2-way valves are formed. Alternatively, you could for example, a 4/3-way valve.
  • the two Valves 15, 16 are each on the one hand with the pneumatic Line 13 and a ventilation channel 17 and on the other each with one of two cylinder chambers 18, 19 to both Sides of a movable piston 20 connected.
  • Electrical control signals for the valves 15, 16 are over the data bus 11 of an electronic control and data receiving device 21 forwarded.
  • This contains one to the Data bus 11 connected bus station 22, which has a bidirectional converter 23 with the pneumatic line 13 connected is.
  • the bidirectional converter 23 is for example trained as a piezo transducer and sets the supplied electrical signals into corresponding sound signals or Sound vibrations around in the gaseous medium in the Spread line 13 and finally a corresponding one bidirectional converter 24 in the pneumatic cylinder 10 reach where they in turn are translated into appropriate signals become.
  • the transmission of the in the electrical signals contained data is done either over different Frequencies that can range up to ultrasound frequencies which can also be modulated or via sound signal sequences or corresponding pressure changes or pressure surges in the gaseous medium. Alternatively, the transfer also take place, for example, via microwaves also spread in the gaseous medium, then appropriate microwave converters are required.
  • the electrical generated by the bidirectional converter 24 Signals are fed to a microcomputer 25 in the housing 14, where they are decoded and depending on the decoding into corresponding Control signals for the two valves 15, 16 converted become.
  • a storage device 27 which is designed, for example, as a capacitor.
  • a storage device 27 is a permanent power supply guaranteed, even when there are no signals on the Line 13 arrive or a short-term increased current or There is an energy requirement.
  • a storage device 27 can also be dispensed with.
  • valves 15, 16 for example as multi-pilot valve arrangements, especially when using piezo valves.
  • the sensors Sensor signals from the controller must be reported back.
  • the corresponding information is digitized there and via the data bus 11 of a master station, not shown supplied, which can be, for example, a PC.
  • microcomputer 25 can of course also another decoding and coding device occur.
  • the converter 24, the microcomputer 25, the rectifier arrangement 26 and the storage device 27 in the housing 14 of the Pneumatic cylinders 10 are in a control and data transmission device 30 summarized, for example as a unit that can be used as a whole or can be attached externally can be trained.
  • Data transmission over line 13 in both opposite directions can be, for example, within fixed time window or according to the principle of a variable master-slave system. Even the generation of the Supply energy can alternate, for example Data transmission takes place in time windows, or else Energy storage takes place in the storage device 27 each during periods when there is no data transmission takes place, which can be controlled by the microcomputer 25. As an alternative to this, a part of the electrical can be used continuously Signals for energy supply are used.
  • control and Data transmission device 31 shows an alternative embodiment of a control and Data transmission device 31 is provided instead the control and data transmission device 30 can occur.
  • the same or equivalent components or assemblies are included provided the same reference numerals and not described again.
  • the supply energy is not from here transmitted sound signals or pressure changes in the gaseous Medium won, but the pressure in the gaseous Medium is used to drive a microturbine 32 with the attached one or integrated micro-generator used. Since line 13 is constantly pressurized, this supply energy are constantly generated so that on a storage device can be dispensed with, which of course nevertheless can be provided.
  • the one generated by the microturbine 32 electrical energy is in a voltage conditioning circuit 33 processes and supplies the microcomputer 25 and a downstream driver stage 34 for controlling the Valves 15, 16. Such a driver stage 34 can of course also in the control and data transmission device 30 may be provided.
  • microturbine 32 instead of the microturbine 32, another micromechanical one can also be used System for generating electrical energy for example a piston oscillator arrangement.
  • the system shown in Fig. 3 is used to operate three Pneumatic cylinders 10, 40, 70.
  • the control and data receiving device 21 and the pneumatic cylinder 10 with its control and Data transmission device 30 and its valves 15, 16 correspond to the arrangement according to FIG. 1 (or FIG. 2).
  • the pneumatic cylinders 40, 70 have the valves 15, 16 corresponding Valves 45, 46 and 75, 76 on. In this way, the Extend overall arrangement as desired.
  • pneumatic cylinders shown in the exemplary embodiments 10, 40, 70 are only shown as examples. Instead of or in addition to these pneumatic cylinders other pneumatic devices such as valve terminals, pneumatic drives, maintenance devices, or even pure Sensor arrangements occur in which only sensor feedback done, but no control signals supplied become.
  • the data transmission described for transmission of control and / or sensor signals via the at least one pneumatic line 13, 43, 73 can transfer this data also take place wirelessly, for example by radio or Infrared signals, or via an in or on the pneumatic Line 13, 43, 73 arranged or integrated light guide.
  • Corresponding transmitters and / or receivers are in this case in the electronic control and / or data receiving device 21, 51, 81 and in the pneumatic device 10, 40, 70 included.
  • light guides for example the light transmitter and / or light receiver each arranged at the connection points of the pneumatic line.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

A method and a device for the supply of electrical loads in or on a pneumatic device with electrical power energy. The pneumatic device is connected by way of a pneumatic line with a source of pressure. The transmission of power energy to the pneumatic device takes place using acoustic waves, microwaves, changes in pressure or a flow of gas in the pneumatic line. Conversion of such transmitted energy into the electrical supply energy occurs in or on the pneumatic device. This means that electrical lines for electrical power supply may be dispensed with and that the transmission of energy takes place only by way of the pneumatic line.

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Versorgung von elektrischen Verbrauchern in oder an einer pneumatischen Vorrichtung mit elektrischer Versorgungsenergie, wobei die pneumatische Vorrichtung über eine pneumatische Leitung an eine Druckquelle angeschlossen ist.The invention relates to a method and an apparatus for Supply of electrical consumers in or on a pneumatic device with electrical supply energy, wherein the pneumatic device via a pneumatic Line is connected to a pressure source.

Zu steuernde pneumatische Vorrichtungen, wie Ventilanordnungen, Zylinder, Antriebe und dergleichen, benötigen zum einen die Zuführung von Druckluft über eine pneumatische Leitung und zum anderen elektrische Zuführungsleitungen zur Zuführung elektrischer Versorgungsenergie und der elektrischen Steuersignale sowie ggf. Rückführungsleitungen zur Rückführung von Sensorsignalen. Sind an einer pneumatischen Vorrichtung mehrere Steuervorrichtungen, wie Ventile, und mehrere Sensoren angeordnet, so erhöht sich entsprechend die Zahl der elektrischen Leitungen, was häufig zu einer unübersichtlichen Leitungsanordnung und zu hohen Kosten für die Installation, Wartung und Reparatur führt.Pneumatic devices to be controlled, such as valve arrangements, Cylinders, drives and the like need to one the supply of compressed air via a pneumatic Line and other electrical supply lines to Supply of electrical supply energy and electrical Control signals and, if necessary, feedback lines for Feedback of sensor signals. Are on a pneumatic Device several control devices, such as valves, and several sensors arranged, the increases accordingly Number of electrical wires, often leading to one confusing line arrangement and at high cost for performs the installation, maintenance and repair.

Aus der DE 195 26 459 ist es bekannt, eine Busstation an einer aus mehreren Ventilen bestehenden Ventilstation über eine Busleitung zu steuern, über die auch Sensorrückmeldungen erfolgen können, jedoch werden auch hier zusätzliche elektrische Versorgungsleitungen sowie die pneumatische Leitung benötigt, so daß auch hier der Installationsaufwand nicht unerheblich ist. From DE 195 26 459 it is known to have a bus station at a valve station consisting of several valves via one Control bus line, via which sensor feedback can be done, however, will also be additional here electrical supply lines and pneumatic Line required so that the installation effort is not insignificant.

Aus der DE 31 47 339 A1, der DE 32 09 189 A1 oder der DE 41 26 403 C2 ist es zwar bekannt, Steuer- oder Sensordaten über ein metallisches Rohrleitungsnetz mittels Ultraschall zu übertragen, jedoch nicht die Versorgungsenergie, und darüber hinaus ist dieses Verfahren für die üblicherweise aus Kunststoffmaterial bestehenden pneumatischen Leitungen nicht anwendbar.From DE 31 47 339 A1, DE 32 09 189 A1 or DE 41 26 403 C2 it is known control or sensor data over a metallic pipeline network using ultrasound transmitted, but not the supply energy, and above In addition, this procedure is usually made for Plastic material existing pneumatic lines are not applicable.

Es ist daher eine Aufgabe der vorliegenden Erfindung, ein Verfahren und eine Vorrichtung zu schaffen, durch das bzw. durch die die Zahl der Verbindungsleitungen zu einer zu steuernden pneumatischen Vorrichtung deutlich reduziert und die Installation vereinfacht werden kann.It is therefore an object of the present invention to provide a To create a method and an apparatus by which through which the number of connecting lines to one controlling pneumatic device significantly reduced and the installation can be simplified.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale der unabhängigen Ansprüche 1 und 8 gelöst.This object is achieved by the features of independent claims 1 and 8 solved.

Der Vorteil der erfindungsgemäßen Vorrichtung besteht insbesondere darin, daß über die ohnehin vorhandene pneumatiche Leitung auch gleichzeitig für elektrische Verbraucher in der pneumatischen Vorrichtung erforderliche Versorgungsenergie übertragen wird, so daß diesbezügliche Leitungen entfallen können. Dabei erfolgt die Übertragung über das gasförmige Medium bzw. die Leitung mittels Schallwellen, Mikrowellen, Druckänderungen oder mittels der Strömungsenergie des druckbeaufschlagten gasförmigen Mediums. Aus diesem Grunde ist die Energieübertragung auch bei den üblicherweise vorhandenen Kunststoffleitungen möglich. Die Umwandlung in die elektrische Versorgungsenergie erfolgt unmittelbar an oder in der pneumatischen Vorrichtung.The advantage of the device according to the invention is in particular in that about the already existing pneumatiche Line also for electrical consumers in the pneumatic device required supply energy is transmitted so that related lines are omitted can. The transmission takes place via the gaseous Medium or the line by means of sound waves, microwaves, Pressure changes or by means of the flow energy of the pressurized gaseous medium. For this reason it is Energy transfer also with the usually existing Plastic lines possible. The conversion to electrical Supply energy takes place directly on or in the pneumatic device.

Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Anspruch 1 angegebenen Verfahrens und der im Anspruch 8 angegebenen Vorrichtung möglich. By the measures listed in the subclaims advantageous developments and improvements in Claim 1 specified method and in claim 8 specified device possible.

In einer vorteilhaften Ausgestaltung wird in der pneumatischen Vorrichtung der Druck des gasförmigen Mediums in der pneumatischen Leitung zum Antrieb einer Mikroturbine mit elektrischem Generator eingesetzt, das heißt, die Strömungsenergie des druckbeaufschlagten gasförmigen Mediums wird direkt in oder an der pneumatischen Vorrichtung in elektrische Versorgungsenergie umgesetzt.In an advantageous embodiment, the pneumatic Device of pressure of the gaseous medium in the pneumatic Cable for driving a microturbine with electrical Generator used, that is, the flow energy of the pressurized gaseous medium is directly in or on the pneumatic device in electrical Supply energy implemented.

In einer alternativen Ausgestaltung der Erfindung werden die Schallwellen oder Druckänderungen mittels des Piezoeffekts oder kapazitiver oder induktiver Umsetzungsverfahren wenigstens teilweise in elektrische Versorgungsenergie in der pneumatischen Vorrichtung umgesetzt. Zur Umwandlung der Schallwellen oder Druckänderungen dient dabei zweckmäßigerweise ein piezoelektrischer, kapazitiver oder induktiver Konverter oder eine Kolbenschwingeranordnung. Ein solcher Konverter oder eine Kolbenschwingeranordnung ist vorzugsweise auch in einer über die pneumatische Leitung mit der pneumatischen Vorrichtung verbundenen Steuer- und/oder Datenempfangseinrichtung zur Umwandlung von elektrischer Energie in der pneumatischen Leitung zuzuführende Schallwellen oder Druckänderungen vorgesehen.In an alternative embodiment of the invention, the Sound waves or pressure changes using the piezo effect or capacitive or inductive implementation processes at least partially in electrical supply energy in the pneumatic device implemented. To convert the Sound waves or pressure changes are expediently used a piezoelectric, capacitive or inductive Converter or a piston oscillator arrangement. Such a A converter or a piston oscillator arrangement is preferred also in a via the pneumatic line with the pneumatic Device connected control and / or data receiving device to convert electrical energy into sound waves to be supplied to the pneumatic line or Pressure changes provided.

In vorteilhafter Weise erfolgt auch die Übertragung von Steuer- und/oder Sensorsignalen zwischen der elektronischen Steuer- und/oder Datenempfangseinrichtung und der pneumatischen Vorrichtung über die pneumatische Leitung mittels Schallsignalen, Mikrowellen oder Druckänderungen. Hierzu werden vorzugsweise unterschiedliche Frequenzen und/oder Signalfolgen und/oder Modulationen und/oder Druckimpulsfolgen vorgesehen, wobei die Übertragung insbesondere bidirektional erfolgt, um auch Sensorsignale rückmelden zu können.The transmission of also takes place in an advantageous manner Control and / or sensor signals between the electronic Control and / or data receiving device and the pneumatic Device via the pneumatic line by means of Sound signals, microwaves or pressure changes. For this are preferably different frequencies and / or Signal sequences and / or modulations and / or pressure pulse sequences provided, the transmission in particular bidirectional takes place so that sensor signals can also be reported.

Zur Übertragung dieser Steuer- und Sensorsignale sind die Steuer- und/oder Datenempfangseinrichtung und die pneumatische Vorrichtung mit wenigstens einem ersten Konverter zur Umwandlung von elektrischen Signalen in Schallsignale oder Druckänderungen und mit wenigstens einem zweiten Konverter zur Umwandlung der Schallsignale oder Druckänderungen in elektrische Signale versehen. Zur bidirektionalen Datenübertragung ist sowohl die Steuer- und/oder Datenempfangseinrichtung als auch die pneumatische Vorrichtung mit einem ersten Konverter und mit einem zweiten Konverter versehen, wobei jeweils ein erster Konverter und ein zweiter Konverter auch als kombinierter bidirektionaler Konverter ausgebildet sein kann. Zur Realisierung eignen sich hierzu vor allem piezoelektrische, jedoch auch induktive oder kapazitive Konverter.These are used to transmit these control and sensor signals Control and / or data receiving device and the pneumatic Device with at least a first converter Conversion of electrical signals into sound signals or Pressure changes and with at least a second converter Conversion of sound signals or pressure changes into provide electrical signals. For bidirectional data transmission is both the control and / or data receiving device as well as the pneumatic device with one first converter and provided with a second converter, a first converter and a second converter also designed as a combined bidirectional converter can be. The following are particularly suitable for implementation piezoelectric, but also inductive or capacitive Converter.

Die Konverter zur Bereitstellung von Versorgungsenergie können in vorteilhafter Weise identisch mit den Konvertern zur Umwandlung zwischen Schallsignalen oder Druckänderungen und elektrischen Steuer- und/oder Sensorsignalen sein, da durch die Durchführung dieser doppelten Funktionen eine optimalere Ausnutzung möglich ist.The converters for supplying energy supply can advantageously identical to the converters for Conversion between sound signals or pressure changes and electrical control and / or sensor signals, because by performing these double functions a more optimal Exploitation is possible.

In einer alternativen Ausführung kann die Übertragung von Steuer- und/oder Sensorsignalen zwischen der elektronischen Steuer- und/oder Datenempfangseinrichtung und der pneumatischen Vorrichtung auch drahtlos, insbesondere durch Funkoder Infrarotsignale, oder über einen in oder an der pneumatischen Leitung angeordneten oder integrierten Lichtleiter erfolgen. Im letzteren Falle sind die Steuerund/oder Datenempfangseinrichtung und die wenigstens eine pneumatische Vorrichtung zweckmäßigerweise jeweils mit einem Lichtsender und/oder einem Lichtempfänger versehen.In an alternative embodiment, the transmission of Control and / or sensor signals between the electronic Control and / or data receiving device and the pneumatic Device also wireless, in particular by radio or Infrared signals, or via an in or on the pneumatic line arranged or integrated Light guides are made. In the latter case, the tax and / or Data receiving device and the at least one pneumatic device expediently each with a Light transmitter and / or a light receiver provided.

Um die Versorgungsspannung kontinuierlich zur Verfügung stellen zu können, zum Beispiel auch bei kurzzeitig höherem Energiebedarf, ist in vorteilhafter Weise eine Speichereinrichtung, insbesondere ein Kondensator oder eine Speicherzelle, zur Speicherung der in oder an der pneumatischen Vorrichtung erzeugten elektrischen Versorgungsenergie vorgesehen. To continuously supply voltage to be able to place, for example, even for a short Energy requirement, is advantageously a storage device, especially a capacitor or a Storage cell, for storing in or on the pneumatic Device generated electrical supply energy intended.

Ein insbesondere als Mikrocomputer ausgebildeter Umsetzer in oder an der pneumatischen Vorrichtung dient in vorteilhafter Weise zur Umsetzung der übertragenen Signale in Steuersignale für wenigstens eine Steuereinrichtung, zum Beispiel ein Ventil, in der pneumatischen Vorrichtung und/ oder zur Umsetzung von Sensorsignalen in zu übertragende Signale.A converter in particular designed as a microcomputer in or on the pneumatic device is used advantageously Way of converting the transmitted signals into control signals for at least one control device, for example a Valve, in the pneumatic device and / or for Conversion of sensor signals into signals to be transmitted.

Die Steuer- und/oder Datenempfangseinrichtung ist vorzugsweise als an einen Datenbus angeschlossene Busstation ausgebildet. Dabei können an diese Busstation mehrere pneumatische Vorrichtungen über pneumatische Leitungen direkt oder über Verzweigungen angeschlossen sein.The control and / or data receiving device is preferred designed as a bus station connected to a data bus. Several pneumatic can be connected to this bus station Devices directly or via pneumatic lines Branches are connected.

Bei größeren Systemen können auch mehrere Busstationen an den Datenbus angeschlossen sein, die jeweils mit wenigstens einer pneumatischen Vorrichtung verbunden sind.With larger systems, several bus stations can be connected to the Data bus can be connected, each with at least one pneumatic device are connected.

Der wenigstens eine Konverter und die Mittel zur Bereitstellung von elektrischer Versorgungsenergie sind zweckmäßigerweise in der pneumatischen Vorrichtung integriert, so daß kompakte Anordnungen vorliegen, die zur vollständigen Installation lediglich über eine einzige pneumatische Leitung angeschlossen werden müssen.The at least one converter and the means for providing it of electrical supply energy are expedient integrated in the pneumatic device, so that there are compact arrangements for complete Installation only via a single pneumatic line must be connected.

Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:

Fig. 1
ein Blockschaltbild einer Vorrichtung zur Übertragung von Daten zwischen einer Busstation und einem Pneumatikzylinder,
Fig. 2
eine ähnliche Anordnung wie in Fig. 1 in einer Detailansicht mit einer Mikroturbine zur Bereitstellung von elektrischer Versorgungsenergie im Pneumatikzylinder,
Fig. 3
eine schematische Darstellung des Betriebs von drei Pneumatikzylindern über drei Busstationen,
Fig. 4
eine ähnliche Anordnung, bei der drei Pneumatikzylinder an eine Busstation angeschlossen sind, und
Fig. 5
eine ähnliche Darstellung wie in Fig. 4, bei der ein Anschluß an einer Busstation über Verzweigungen zu drei Pneumatikzylindern geführt ist.
Embodiments of the invention are shown in the drawing and explained in more detail in the following description. Show it:
Fig. 1
1 shows a block diagram of a device for transmitting data between a bus station and a pneumatic cylinder,
Fig. 2
1 shows a similar arrangement as in FIG. 1 in a detailed view with a microturbine for providing electrical supply energy in the pneumatic cylinder,
Fig. 3
a schematic representation of the operation of three pneumatic cylinders via three bus stations,
Fig. 4
a similar arrangement in which three pneumatic cylinders are connected to a bus station, and
Fig. 5
a similar representation as in Fig. 4, in which a connection to a bus station via branches to three pneumatic cylinders is performed.

Bei dem in Fig. 1 dargestellten Ausführungsbeispiel der Erfindung wird ein Pneumatikzylinder 10 über einen elektrischen Datenbus 11, beispielsweise einen Feldbus, gesteuert. Eine pneumatische Druckquelle 12 ist über eine z. B. aus flexiblem Kunststoffmaterial bestehende pneumatische Leitung 13 mit dem Pneumatikzylinder 10 verbunden. In einem stirnseitigen Bereich des Gehäuses 14 des Pneumatikzylinders 10 sind zwei Ventile 15, 16 integriert, die beispielsweise als 3/2-Wegeventile ausgebildet sind. Alternativ hierzu könnte beispielsweise auch ein 4/3-Wegeventil treten. Die beiden Ventile 15, 16 sind jeweils einerseits mit der pneumatischen Leitung 13 und einem Entlüftungskanal 17 und andererseits jeweils mit einer von zwei Zylinderkammern 18, 19 zu beiden Seiten eines bewegbaren Kolbens 20 verbunden.In the embodiment shown in Fig. 1 Invention is a pneumatic cylinder 10 via an electrical Data bus 11, for example a field bus, controlled. A pneumatic pressure source 12 is via a z. B. from flexible plastic material existing pneumatic line 13 connected to the pneumatic cylinder 10. In a face Area of the housing 14 of the pneumatic cylinder 10 are two valves 15, 16 integrated, for example as 3/2-way valves are formed. Alternatively, you could for example, a 4/3-way valve. The two Valves 15, 16 are each on the one hand with the pneumatic Line 13 and a ventilation channel 17 and on the other each with one of two cylinder chambers 18, 19 to both Sides of a movable piston 20 connected.

Elektrische Steuersignale für die Ventile 15, 16 werden über den Datenbus 11 einer elektronischen Steuer- und Datenempfangseinrichtung 21 zugeleitet. Diese enthält eine an den Datenbus 11 angeschlossene Busstation 22, die über einen bidirektionalen Konverter 23 mit der pneumatischen Leitung 13 verbunden ist. Der bidirektionale Konverter 23 ist beispielsweise als Piezowandler ausgebildet und setzt die zugeführten elektrischen Signale in entsprechende Schallsignale bzw. Tonschwingungen um, die sich im gasförmigen Medium in der Leitung 13 ausbreiten und schließlich einen entsprechenden bidirektionalen Konverter 24 im Pneumatikzylinder 10 erreichen, wo sie wiederum in entsprechende Signale umgesetzt werden. Die Übertragung der in den elektrischen Signalen enthaltenen Daten erfolgt entweder über unterschiedliche Frequenzen, die bis zu Ultraschallfrequenzen reichen können, die auch moduliert sein können, oder über Schallsignalfolgen bzw. entsprechende Druckänderungen oder Druckstöße im gasförmigen Medium. Alternativ hierzu kann die Übertragung auch beispielsweise über Mikrowellen erfolgen, die sich ebenfalls im gasförmigen Medium ausbreiten, wobei dann entsprechende Mikrowellen-Konverter erforderlich sind.Electrical control signals for the valves 15, 16 are over the data bus 11 of an electronic control and data receiving device 21 forwarded. This contains one to the Data bus 11 connected bus station 22, which has a bidirectional converter 23 with the pneumatic line 13 connected is. The bidirectional converter 23 is for example trained as a piezo transducer and sets the supplied electrical signals into corresponding sound signals or Sound vibrations around in the gaseous medium in the Spread line 13 and finally a corresponding one bidirectional converter 24 in the pneumatic cylinder 10 reach where they in turn are translated into appropriate signals become. The transmission of the in the electrical signals contained data is done either over different Frequencies that can range up to ultrasound frequencies which can also be modulated or via sound signal sequences or corresponding pressure changes or pressure surges in the gaseous medium. Alternatively, the transfer also take place, for example, via microwaves also spread in the gaseous medium, then appropriate microwave converters are required.

Die vom bidirektionalen Konverter 24 erzeugten elektrischen Signale werden im Gehäuse 14 einem Mikrorechner 25 zugeführt, wo sie decodiert und je nach Decodierung in entsprechende Steuersignale für die beiden Ventile 15, 16 umgewandelt werden.The electrical generated by the bidirectional converter 24 Signals are fed to a microcomputer 25 in the housing 14, where they are decoded and depending on the decoding into corresponding Control signals for the two valves 15, 16 converted become.

Zur Stromversorgung des Mikrorechners 25 und direkt oder indirekt der Ventile 15, 16 wird ein Teil der vom Konverter 24 erzeugten elektrischen Signale in einer Gleichrichteranordnung 26 gleichgerichtet und einer Speichereinrichtung 27 zugeführt, die beispielsweise als Kondensator ausgebildet ist. Durch die Speichereinrichtung 27 ist eine ständige Stromversorgung gewährleistet, auch dann, wenn gerade keine Signale über die Leitung 13 ankommen oder ein kurzzeitiger erhöhter Strom- bzw. Energiebedarf vorliegt. In einer einfacheren Ausführung kann auch auf eine Speichereinrichtung 27 verzichtet werden.To power the microcomputer 25 and directly or indirectly the valves 15, 16 become part of the converter 24 generated electrical signals in a rectifier arrangement 26 rectified and fed to a storage device 27, which is designed, for example, as a capacitor. Through the Storage device 27 is a permanent power supply guaranteed, even when there are no signals on the Line 13 arrive or a short-term increased current or There is an energy requirement. In a simpler version can a storage device 27 can also be dispensed with.

Im Hinblick auf die relativ geringe zur Verfügung stehende elektrische Energie sind die Ventile 15, 16 beispielsweise als mehrfach vorgesteuerte Ventilanordnungen ausgebildet, insbesondere auch unter Verwendung von Piezo-Ventilen.In view of the relatively small amount available electrical energy are the valves 15, 16 for example as multi-pilot valve arrangements, especially when using piezo valves.

An derartigen Pneumatikzylindern 10 oder anderen pneumatischen Vorrichtungen sind üblicherweise Sensoren angeordnet, deren Sensorsignale der Steuerung rückgemeldet werden müssen. Im Ausführungsbeispiel sind ein Drucksensor 28 und ein Positionssensor 29 zur Erfassung der Kolbenposition dargestellt. Diese sind mit Eingängen des Mikrorechners 25 verbunden, wo die entsprechenden Sensorsignale digitalisiert und codiert werden und in dieser Form dem bidirektionalen Konverter 24 zugeführt werden. Dort werden sie in entsprechende Schall-, Ton- bzw. On such pneumatic cylinders 10 or other pneumatic Devices are usually arranged, the sensors Sensor signals from the controller must be reported back. in the Exemplary embodiments are a pressure sensor 28 and a position sensor 29 shown for detecting the piston position. This are connected to inputs of the microcomputer 25, where the corresponding sensor signals are digitized and encoded and fed to the bidirectional converter 24 in this form become. There they are broken down into sound, sound or

Drucksignale umgewandelt und über die Leitung 13 dem Konverter 23 zugeführt, wo sie wiederum in elektrische Signale umgewandelt und so der Busstation 22 zugeführt werden. Die entsprechenden Informationen werden dort digitalisiert und über den Datenbus 11 einer nicht dargestellten Masterstation zugeführt, die beispielsweise ein PC sein kann.Pressure signals converted and via line 13 to the converter 23 supplied, where it in turn is converted into electrical signals and so the bus station 22 are supplied. The corresponding information is digitized there and via the data bus 11 of a master station, not shown supplied, which can be, for example, a PC.

Es ist selbstverständlich auch möglich, bei einer dezentralisierten Intelligenz die Sensorsignale auch zum Teil im Mikrorechner 25 und/oder in der Busstation 22 ganz oder teilweise auszuwerten, weiterzubearbeiten oder für die Steuerung zu berücksichtigen.It is of course also possible with a decentralized one Intelligence partly the sensor signals in the Microcomputer 25 and / or in the bus station 22 entirely or partially evaluate, further process or for the Control.

Anstelle des Mikrorechners 25 kann selbstverständlich auch eine andere Decodier- und Codiereinrichtung treten.Instead of the microcomputer 25 can of course also another decoding and coding device occur.

Der Konverter 24, der Mikrorechner 25, die Gleichrichteranordnung 26 und die Speichereinrichtung 27 im Gehäuse 14 des Pneumatikzylinders 10 sind in einer Steuer- und Datenübertragungseinrichtung 30 zusammengefaßt, die beispielsweise als im ganzen einsetzbare oder auch außen anbringbare Einheit ausgebildet sein kann.The converter 24, the microcomputer 25, the rectifier arrangement 26 and the storage device 27 in the housing 14 of the Pneumatic cylinders 10 are in a control and data transmission device 30 summarized, for example as a unit that can be used as a whole or can be attached externally can be trained.

Die Datenübertragung über die Leitung 13 in den beiden entgegengesetzten Richtungen kann beispielsweise innerhalb festgelegter Zeitfenster erfolgen oder nach dem Prinzip eines variablen Master-Slave-Systems. Auch die Erzeugung der Versorgungsenergie kann beispielsweise abwechselnd zur Datenübertragung in Zeitfenstern erfolgen, oder aber die Energiespeicherung in der Speichereinrichtung 27 erfolgt jeweils während Perioden, in denen keine Datenübertragung erfolgt, wobei dies vom Mikrorechner 25 gesteuert werden kann. Alternativ hierzu kann auch ständig ein Teil der elektrischen Signale zur Energieversorgung verwendet werden.Data transmission over line 13 in both opposite directions can be, for example, within fixed time window or according to the principle of a variable master-slave system. Even the generation of the Supply energy can alternate, for example Data transmission takes place in time windows, or else Energy storage takes place in the storage device 27 each during periods when there is no data transmission takes place, which can be controlled by the microcomputer 25. As an alternative to this, a part of the electrical can be used continuously Signals for energy supply are used.

In Fig. 2 ist eine alternative Ausgestaltung einer Steuerund Datenübertragungseinrichtung 31 vorgesehen, die anstelle der Steuer- und Datenübertragungseinrichtung 30 treten kann. Gleiche oder gleichwirkende Bauteile oder Baugruppen sind mit denselben Bezugszeichen versehen und nicht nochmals beschrieben. Die Versorgungsenergie wird hier nicht aus den übertragenen Schallsignalen oder Druckänderungen im gasförmigen Medium gewonnen, sondern der Druck im gasförmigen Medium wird zum Antrieb einer Mikroturbine 32 mit angesetztem oder integriertem Mikrogenerator verwendet. Da die Leitung 13 ständig druckbeaufschlagt ist, kann diese Versorgungsenergie ständig erzeugt werden, so daß auf eine Speichereinrichtung verzichtet werden kann, die selbstverständlich dennoch vorgesehen sein kann. Die durch die Mikroturbine 32 erzeugte elektrische Energie wird in einer Spannungsaufbereitungsschaltung 33 aufbereitet und versorgt den Mikrorechner 25 sowie eine nachgeschaltete Treiberstufe 34 zur Ansteuerung der Ventile 15, 16. Eine solche Treiberstufe 34 kann selbstverständlich auch bei der Steuer- und Datenübertragungseinrichtung 30 vorgesehen sein.2 shows an alternative embodiment of a control and Data transmission device 31 is provided instead the control and data transmission device 30 can occur. The same or equivalent components or assemblies are included provided the same reference numerals and not described again. The supply energy is not from here transmitted sound signals or pressure changes in the gaseous Medium won, but the pressure in the gaseous Medium is used to drive a microturbine 32 with the attached one or integrated micro-generator used. Since line 13 is constantly pressurized, this supply energy are constantly generated so that on a storage device can be dispensed with, which of course nevertheless can be provided. The one generated by the microturbine 32 electrical energy is in a voltage conditioning circuit 33 processes and supplies the microcomputer 25 and a downstream driver stage 34 for controlling the Valves 15, 16. Such a driver stage 34 can of course also in the control and data transmission device 30 may be provided.

Anstelle der Mikroturbine 32 kann auch ein anderes mikromechanisches System zur Erzeugung elektrischer Energie treten, beispielsweise eine Kolbenschwingeranordnung.Instead of the microturbine 32, another micromechanical one can also be used System for generating electrical energy for example a piston oscillator arrangement.

Das in Fig. 3 dargestellte System dient zum Betreiben von drei Pneumatikzylindern 10, 40, 70. Die Steuer- und Datenempfangseinrichtung 21 und der Pneumatikzylinder 10 mit seiner Steuerund Datenübertragungseinrichtung 30 sowie seinen Ventilen 15, 16 entsprechen der Anordnung gemäß Fig. 1 (oder Fig. 2). An den Datenbus 11, der über eine als PC ausgebildete Masterstation 35 gesteuert wird, sind zwei weitere Steuer- und Datenempfangseinrichtungen 51 und 81 entsprechend angeschlossen, die über Leitungen 43, 73 mit entsprechenden Steuer- und Datenübertragungseinrichtungen 60, 90 mit den Pneumatikzylindern 40, 70 verbunden sind. Die Pneumatikzylinder 40, 70 weisen den Ventilen 15, 16 entsprechende Ventile 45, 46 bzw. 75, 76 auf. Auf diese Weise läßt sich die Gesamtanordnung beliebig erweitern. The system shown in Fig. 3 is used to operate three Pneumatic cylinders 10, 40, 70. The control and data receiving device 21 and the pneumatic cylinder 10 with its control and Data transmission device 30 and its valves 15, 16 correspond to the arrangement according to FIG. 1 (or FIG. 2). On the data bus 11 via a master station designed as a PC 35 is controlled, are two more control and Data receiving devices 51 and 81 connected accordingly, the corresponding lines 43, 73 with Control and data transmission devices 60, 90 with the Pneumatic cylinders 40, 70 are connected. The pneumatic cylinders 40, 70 have the valves 15, 16 corresponding Valves 45, 46 and 75, 76 on. In this way, the Extend overall arrangement as desired.

Alternativ hierzu ist es auch möglich, gemäß Fig. 4 alle Pneumatikzylinder 10, 40, 70 durch die eine Steuer- und Datenempfangseinrichtung 21 zu steuern, an die hierzu die drei pneumatischen Leitungen 13, 43 und 73 angeschlossen sind. Dabei können auch gemäß Fig. 4 weitere Steuer- und Datenempfangseinrichtungen am elektrischen Datenbus 11 angeschlossen sein, die wiederum jeweils mehrere Pneumatikzylinder oder andere pneumatische Vorrichtungen steuern und/oder deren Sensorsignale empfangen. In Fig. 5 ist eine Variation bezüglich Fig. 4 dargestellt, indem dort an die Steuer- und Datenempfangseinrichtung 21 nur die pneumatische Leitung 43 angeschlossen ist, während die pneumatischen Leitungen 13 und 73 über Verzweigungen bzw. T-Stücke mit dieser Leitung 43 verbunden sind.Alternatively, it is also possible, according to FIG. 4, all Pneumatic cylinder 10, 40, 70 through a control and To control data receiving device 21, to which the three pneumatic lines 13, 43 and 73 are connected. 4 can also control and data receiving devices connected to the electrical data bus 11 be, which in turn each have several pneumatic cylinders or control other pneumatic devices and / or receive their sensor signals. 5 is one Variation with respect to Fig. 4 shown by there to the Control and data receiving device 21 only the pneumatic Line 43 is connected while the pneumatic Lines 13 and 73 with branches or T-pieces this line 43 are connected.

Die in den Ausführungsbeispielen dargestellten Pneumatikzylinder 10, 40, 70 sind lediglich beispielhaft dargestellt. Anstelle dieser Pneumatikzylinder oder zusätzlich zu diesen können auch andere pneumatische Vorrichtungen, wie Ventilinseln, pneumatische Antriebe, Wartungsgeräte, oder auch reine Sensoranordnungen treten, bei denen lediglich Sensorrückmeldungen erfolgen, jedoch keine Steuersignale zugeführt werden.The pneumatic cylinders shown in the exemplary embodiments 10, 40, 70 are only shown as examples. Instead of or in addition to these pneumatic cylinders other pneumatic devices such as valve terminals, pneumatic drives, maintenance devices, or even pure Sensor arrangements occur in which only sensor feedback done, but no control signals supplied become.

Anstelle der beschriebenen Datenübertragung zur Übertragung von Steuer- und/oder Sensorsignalen über die wenigstens eine pneumatische Leitung 13, 43, 73 kann diese Datenübertragung auch drahtlos erfolgen, beispielsweise durch Funk- oder Infrarotsignale, oder über einen in oder an der pneumatischen Leitung 13, 43, 73 angeordneten oder integrierten Lichtleiter. Entsprechende Sender und/oder Empfänger sind in diesem Falle in der elektronischen Steuer- und/oder Datenempfangseinrichtung 21, 51, 81 sowie in der pneumatischen Vorrichtung 10, 40, 70 enthalten. Im Falle von Lichtleitern sind beispielsweise die Lichtsender und/oder Lichtempfänger jeweils an den Anschlußpunkten der pneumatischen Leitung angeordnet.Instead of the data transmission described for transmission of control and / or sensor signals via the at least one pneumatic line 13, 43, 73 can transfer this data also take place wirelessly, for example by radio or Infrared signals, or via an in or on the pneumatic Line 13, 43, 73 arranged or integrated light guide. Corresponding transmitters and / or receivers are in this case in the electronic control and / or data receiving device 21, 51, 81 and in the pneumatic device 10, 40, 70 included. In the case of light guides for example the light transmitter and / or light receiver each arranged at the connection points of the pneumatic line.

Claims (26)

  1. Method of supplying electrical loads in or on a pneumatic device with electrical supply energy, wherein the pneumatic device is connected to a pressure source via a pneumatic line, characterised in that the transmission of energy to the pneumatic device (10; 40; 70) is effected over the pneumatic line (13; 43; 73) by means of sound waves, microwaves, changes in pressure or a flow of gas in the pneumatic line (13; 43; 73), and that a conversion of this transmitted energy into the electrical supply energy is effected in or on the pneumatic device (10; 40; 70).
  2. Method according to claim 1 characterised in that, in the pneumatic device (10), the pressure of the gaseous medium in the pneumatic line (13; 43; 73) is used to drive a microturbine (32).
  3. Method according to claim 1 characterised in that, in the pneumatic device (10), the sound waves or changes in pressure are converted at least partially into electrical supply energy by means of the piezoelectric effect or capacitive or inductive conversion processes.
  4. Method according to any of the preceding claims, characterised in that the transmission of control and/or sensor signals between an electronic control and/or data receiving device (21; 51; 81) and the pneumatic device (10; 40; 70) is effected over the pneumatic line by means of acoustic signals, microwaves or changes in pressure.
  5. Method according to claim 4 characterised in that, in order to transmit different control and/or sensor signals, different frequencies and/or signal sequences and/or modulations and/or pressure pulse sequences are provided.
  6. Method according to any of claims 1 to 3, characterised in that the transmission of control and/or sensor signals between an electronic control and/or data receiving device (21; 51; 81) and the pneumatic device (10; 40; 70) is effected by wireless means, in particular by radio or infrared signals, or through an optical fibre fitted in or on or integrated with the pneumatic line.
  7. Method according to any of the preceding claims, characterised in that the transmission is bi-directional.
  8. Pneumatic device with a device for supplying electrical loads in or on a pneumatic device with electrical supply energy, wherein the pneumatic device is connected to a pressure source via a pneumatic line, characterised in that in the pneumatic device (10; 40; 70) means are provided for converting energy transmitted over the pneumatic line by means of sound waves, microwaves, changes in pressure or flow energy of the gaseous medium into electrical supply energy.
  9. Device according to claim 8 characterised in that, for the conversion of sound waves or changes in pressure into electrical supply energy, a piezoelectric, capacitive or inductive converter (24) or a piston oscillator assembly is provided.
  10. Device according to claim 9, characterised in that there is similarly provided, in an electronic control and/or data receiving device connected via the pneumatic line (13; 43; 73) to the pneumatic device (10; 40; 70), a piezoelectric, capacitive or inductive converter (23) or a piston oscillator assembly for the conversion of electrical energy in sound waves or changes in pressure to be supplied in the pneumatic line.
  11. Device according to claim 8 characterised in that, for the conversion of flow energy of the pressurised gaseous medium into electrical supply energy, a microturbine (32) with electrical generator is provided in or on the pneumatic device (10; 40; 70).
  12. Device according to any of the preceding claims 8 to 11, characterised in that a storage device (27), in particular a capacitor or a storage cell assembly, is provided to store the electrical supply energy generated in or on the pneumatic device (10; 40; 70).
  13. Device according to any of the preceding claims 8 to 12 characterised in that, for transmission of control and/or sensor signals between an electronic control and/or data receiving device (21; 51; 81) and the pneumatic device (10; 40; 70) over the pneumatic line (13; 43; 73) by means of acoustic signals, microwaves or changes in pressure in the gaseous medium of the line (13; 43; 73), the control and/or data receiving device (21; 51; 81) and the pneumatic device (10; 40; 70) are provided with at least one first converter (23) to convert electrical signals into acoustic signals or changes in pressure, and with at least one second converter (24) to convert acoustic signals or changes in pressure into electrical signals.
  14. Device according to claim 13, characterised in that the control and/or data receiving device (21; 51; 81) is provided with a first converter (23) and the pneumatic device (10; 40; 70) with a second converter (24).
  15. Device according to claim 13, characterised in that, for bi-directional data transmission, both the control and/or data receiving device (21; 51; 81) and the pneumatic device (10; 40; 70) are provided with both types of converter (23, 24).
  16. Device according to claim 15, characterised in that in each case one first converter (23) and one second converter (24) are designed as combined bi-directional converters.
  17. Device according to any of claims 13 to 16, characterised in that the converters (23, 24) are in the form of piezoelectric or capacitive or inductive converters.
  18. Device according to claims 9 and 17, characterised in that the converters (23, 24) for the provision of supply energy are identical to the converters (23, 24) for conversion between acoustic signals or changes in pressure and electrical control and/or sensor signals.
  19. Device according to any of claims 8 to 12 characterised in that, for transmission of control and/or sensor signals between an electronic control and/or data receiving device (21; 51; 81) and the pneumatic device (10; 40; 70), the latter are each provided with means for data transmission by infrared or radio.
  20. Device according to any of claims 8 to 12 characterised in that, for transmission of control and/or sensor signals between an electronic control and/or data receiving device (21; 51; 81) and the pneumatic device (10; 40; 70) via the pneumatic line (13; 43; 73), the former are in the form of or are provided with optical fibres, with the control and/or data receiving device and the pneumatic device each being provided with an optical transmitter and/or an optical receiver.
  21. Device according to any of claims 8 to 20 characterised in that a converter (25), in particular in the form of a microcomputer, is provided in or on the pneumatic device (10; 40; 70), being designed for conversion of the transmitted signals into control signals for one or more control devices (15, 16) in the pneumatic device (10; 40; 70) and/or for conversion of sensor signals into signals to be transmitted.
  22. Device according to any of claims 8 to 21, characterised in that the control and/or data receiving device (21; 51; 81) is in the form of a bus station connected to a data bus (11).
  23. Device according to claim 22, characterised in that several pneumatic devices (10; 40; 70) are connected via pneumatic lines (13; 43; 73) to the control and/or data receiving device (21) in the form of a bus station.
  24. Device according to claim 22 or 23, characterised in that several control and/or data receiving devices (21; 51; 81) in the form of bus stations are connected to the data bus (11), each being connected to one or more pneumatic devices (10; 40; 70).
  25. Device according to any of claims 8 to 24, characterised in that the converter or converters (24), the means of providing electrical supply energy, and the converter (25) are integrated in the pneumatic device (10; 40; 70).
  26. Device according to any of claims 8 to 25, characterised in that the pneumatic line (13; 43; 73) is made of flexible plastic material.
EP00960546A 1999-09-07 2000-08-30 Method and device for supplying electrical power to electrical consumers in or on a pneumatic device Expired - Lifetime EP1127221B1 (en)

Applications Claiming Priority (3)

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DE19942509A DE19942509A1 (en) 1999-09-07 1999-09-07 Method and device for supplying electrical consumers in or on a pneumatic device with electrical supply energy
DE19942509 1999-09-07
PCT/EP2000/008433 WO2001018405A1 (en) 1999-09-07 2000-08-30 Method and device for supplying electrical power to electrical consumers in or on a pneumatic device

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EP (1) EP1127221B1 (en)
JP (1) JP2003508701A (en)
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AT (1) ATE264461T1 (en)
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ATE264461T1 (en) 2004-04-15
CN1335917A (en) 2002-02-13
CN1191434C (en) 2005-03-02
DE50006066D1 (en) 2004-05-19
WO2001018405A1 (en) 2001-03-15
DK1127221T3 (en) 2004-05-10
KR20010090821A (en) 2001-10-19
EP1127221A1 (en) 2001-08-29
US6581619B1 (en) 2003-06-24
JP2003508701A (en) 2003-03-04
DE19942509A1 (en) 2001-04-05
ES2215066T3 (en) 2004-10-01

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