DE10304584A1 - Communication of power and data to sensors and actuators in a process uses field transmission and avoids wiring - Google Patents

Communication of power and data to sensors and actuators in a process uses field transmission and avoids wiring

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Publication number
DE10304584A1
DE10304584A1 DE10304584A DE10304584A DE10304584A1 DE 10304584 A1 DE10304584 A1 DE 10304584A1 DE 10304584 A DE10304584 A DE 10304584A DE 10304584 A DE10304584 A DE 10304584A DE 10304584 A1 DE10304584 A1 DE 10304584A1
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Germany
Prior art keywords
characterized
arrangement according
plates
repeater
actuator
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DE10304584A
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German (de)
Inventor
Guntram Dr.-Ing. Scheible
Jean Dr.-Ing. Schutz
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ABB Research Ltd
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ABB Research Ltd
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Priority to DE10304584A priority Critical patent/DE10304584A1/en
Publication of DE10304584A1 publication Critical patent/DE10304584A1/en
Application status is Withdrawn legal-status Critical

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/05Circuit arrangements or systems for wireless supply or distribution of electric power using capacitive coupling
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J17/00Systems for supplying or distributing electric power by electromagnetic waves
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J5/00Circuit arrangements for transfer of electric power between ac networks and dc networks
    • H02J5/005Circuit arrangements for transfer of electric power between ac networks and dc networks with inductive power transfer
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/50Circuit arrangements or systems for wireless supply or distribution of electric power using additional energy repeaters between transmitting devices and receiving devices

Abstract

The machine process has a number of sensors and actuators [4n] that are located between a pair of parallel plates [2,3] of electrically conducting material. The plates are connected to a power supply having a frequency of greater than 120 Hz. A base station [15] communicates with the sensors and actuators through the generated electromagnetic field.

Description

  • Die Erfindung bezieht sich auf eine Anordnung zur drahtlosen Versorgung eines Systems mit einer Vielzahl Sensoren und/oder Aktoren mit elektrischer Energie gemäß dem Oberbegriff des Anspruchs 1. The invention relates to an arrangement for supply of a wireless system having a plurality of sensors and / or actuators with electric energy according to the preamble of claim 1.
  • Die Erfindung kann beispielsweise bei einem System mit einer Vielzahl drahtloser Sensoren und/oder Aktoren (drahtlos sowohl hinsichtlich Energieversorgung als auch hinsichtlich Kommunikation) verwendet werden, welches in einer Maschine oder Anlage, beispielsweise Industrieroboter, Herstellungsautomat, Fertigungsautomat oder Prozessanlage installiert ist. The invention may for example be in a system with a plurality of wireless sensors and / or actuators used (wireless both in terms of energy supply and with respect to communication), which is installed in a machine or system, such as industrial robots, manufacturing machines, production machines or process plant. Als Sensoren bzw. Aktoren können Näherungsschalter/Näherungssensoren, Temperaturmesssensoren, Druckmesssensoren, Strommesssensoren oder Spannungsmesssensoren bzw. mikromechanische, piezoelektrische, elektrochemische, magnetostriktive, elektrostatische oder elektromagnetische Aktoren verwendet werden. As sensors or actuators proximity switch / proximity sensors, temperature measuring sensors, pressure sensors, flow measurement sensors or voltage measuring sensors or micro-mechanical, piezoelectric, electrochemical, magnetostrictive, electrostatic or electromagnetic actuators may be used.
  • In der In the DE 199 26 799 A1 DE 199 26 799 A1 wird ein System für eine eine Vielzahl von drahtlosen Näherungssensoren aufweisende Maschine, insbesondere Fertigungsautomat, vorgeschlagen, wobei is a system for a plurality of wireless proximity sensors having machine, in particular an automated production machine, proposed wherein
    • – jeder Näherungssensor mindestens eine zur Energieaufnahme aus einem mittelfrequenten Magnetfeld geeignete Sekundärwicklung aufweist, - each proximity sensor has at least one energy from a medium magnetic field suitable secondary winding,
    • – wobei mindestens eine von einem mittelfrequenten Oszillator gespeiste, ein Magnetfeld erzeugende Primärwicklung zur drahtlosen Versorgung der Näherungssensoren mit elektrischer Energie vorgesehen ist, - wherein at least one powered by a medium frequency oscillator which generates a magnetic field for wireless supply the primary winding of the proximity sensors is provided with electrical energy,
    • – und wobei jeder Näherungssensor mit einer Sendeeinrichtung ausgestattet ist, welche interessierende Sensor-Informationen beinhaltende Funksignale an eine zentrale, mit einem Prozessrechner der Maschine verbundene Basisstation abgibt. - and wherein each proximity sensor is equipped with a transmitting device which emits interest sensor information-containing radio signals to a central, connected to a process computer of the machine base station.
  • Die erforderliche Primärwicklung umfasst eine relativ große Fläche und besteht vielfach nur aus wenigen Windungen, gegebenenfalls aus einer einzigen Windung. The required primary winding comprises a relatively large area and there is often only a few turns, if appropriate, of a single turn. Bei diesem drahtlosen System entfällt im Vergleich zu konventionellen Lösungen mit Draht/Kabelanschluss zur elektrischen Energieversorgung und zur Kommunikation der durch Planung, Material, Installation, Dokumentation und Wartung bedingte relativ hohe Kostenfaktor der Draht/Kabelanschlüsse. In this wireless system is omitted in comparison to conventional solutions with wire / cable connection to the electrical power supply and for communication of the related through planning, material, installation, documentation and maintenance relatively high cost factor in wire / cable connections. Es können keine Ausfälle aufgrund von Kabelbrüchen oder schlechten, beispielsweise korrodierten Kontakten auftreten. There may be no failures due to cable breakage or bad, for example corroded contacts.
  • In der In the DE 199 26 562 A1 DE 199 26 562 A1 werden ein Verfahren und eine Anordnung zur drahtlosen Versorgung einer Vielzahl Aktoren mit elektrischer Energie, ein Aktor und eine Primärwicklung hierzu sowie ein System für eine eine Vielzahl von Aktoren aufweisende Maschine vorgeschlagen, wobei die vorgeschlagene Technologie bezüglich Energieversorgung und Kommunikation gleichartig der vorstehend für die A method and an arrangement for the wireless supply of a plurality proposed actuators with electrical energy, an actuator and a primary winding for this purpose, as well as a system for a plurality of actuators having machine, the proposed technology with respect to power supply and communication similar to the above for the DE 199 26 799 A1 DE 199 26 799 A1 angegebenen Technologie ist. is given technology.
  • Der Erfindung liegt die Aufgabe zugrunde, eine kostengünstige und zuverlässige Anordnung zur drahtlosen Versorgung eines Systems mit einer Vielzahl Sensoren und/oder Aktoren mit elektrischer Energie der eingangs genannten Art anzugeben. The invention has the object of providing an inexpensive and reliable arrangement for the wireless supply of a system with a plurality of sensors and / or actuators to provide electrical power of the type mentioned.
  • Diese Aufgabe wird in Verbindung mit den Merkmalen des Oberbegriffes erfindungsgemäß durch die im Kennzeichen des Anspruchs 1 angegebenen Merkmale gelöst. This object is achieved in conjunction with the features of the preamble according to the invention by the features specified in the characterizing part of claim 1.
  • Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, dass im Vergleich zu konventionellen Lösungen mit Kabelanschluss zur elektrischen Energieversorgung der Sensoren und/oder Aktoren der durch Planung, Material, Installation, Dokumentation und Wartung bedingte relativ hohe Kostenfaktor eines Kabelanschlusses entfällt. The advantages attainable with the invention consist particularly in the fact that, compared to conventional solutions with cable connection to the electrical power supply of the sensors and / or actuators eliminates the induced by planning, material, installation, documentation and maintenance relatively high cost of a cable connection. Es können keine Ausfälle aufgrund von Kabelbrüchen oder schlechten, beispielsweise korrodierten Kontakten auftreten. There may be no failures due to cable breakage or bad, for example corroded contacts. Im Vergleich zur Verwendung von Batterien zur Energieversorgung von Sensoren und/oder Aktoren entfällt der Wartungsaufwand und Kostenaufwand, der durch den erforderlichen Austausch von Batterien – zumal an schwer zugänglichen Stellen – bedingt ist. is due - particularly in confined spaces - compared with the use of batteries for powering sensors and / or actuators of the maintenance effort and expense, by the necessary replacement of batteries is eliminated.
  • Weitere Vorteile sind aus der nachstehenden Beschreibung ersichtlich. Other advantages will be apparent from the following description.
  • Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet. Advantageous embodiments of the invention are characterized in the subclaims.
  • Die Erfindung wird nachstehend anhand der in der Zeichnung dargestellten Ausführungsbeispiele erläutert. The invention is explained below with reference to shown in the drawings embodiments. Es zeigen: Show it:
  • 1 1 , . 2a 2a , . 2b 2 B , . 3 3 unterschiedliche Grundanordnungen der zur Energieversorgung eines Sensors oder Aktors erforderlichen Primärelemente, different base arrangements of the power supply necessary for a sensor or actuator primary elements,
  • 4 4 , . 5 5 , . 6 6 unterschiedliche Ausführungsformen der zur Energieeinspeisung eines Sensors oder Aktors erforderlichen Sekundärelemente. different embodiments of the energy supply necessary for a sensor or actuator secondary elements.
  • Zur drahtlosen Versorgung eines Systems einer Vielzahl von Sensoren und/oder Aktoren For the wireless supply of a system of a plurality of sensors and / or actuators 4.1 4.1 ... ... 4.n 4-n mit elektrischer Energie wird eine aus mindestens zwei, im wesentlichen parallel zueinander angeordneten Körpern (beispielsweise Platten with electrical energy, an (at least two, substantially parallel to each other bodies, for example, plates 1 1 , . 2 2 gemäß according to 1 1 ) mit Oberflächen aus elektrisch leitfähigem Material bestehende Primärelemente-Anordnung vorgeschlagen, wobei eine Einspeiseschaltung ) Proposes surfaces of electrically conductive material existing primary element arrangement, wherein a feed circuit 3 3 mit den Oberflächen beider Körper elektrisch verbunden ist und diese Oberflächen mit einer mittelfrequenten Wechselspannung mit einer Frequenz größer oder gleich 120 kHz beaufschlagt. with the surfaces of both bodies is electrically connected and applied to these surfaces is greater than or equal to 120 kHz with a medium-frequency alternating voltage with a frequency. Das den Körpern zugeführte elektrische Potential ist relativ gering, so dass die auftretenden Berührungsspannungen unterhalb der zulässigen Grenzwerte liegen. The water supplied to the bodies electrical potential is relatively low, so that the contact stresses occurring within the permissible limits. Gegebenenfalls sind die elektrisch leitfähigen Oberflächen der Körper zusätzlich mit einem Isoliermaterial beschichtet. Optionally, the electrically conductive surfaces of the bodies are additionally coated with an insulating material. Das mit Hilfe dieser Primärelemente produzierte elektrische Feld dient der Energieversorgung der sich zwischen den Primärelementen befindenden Sensoren und/oder Aktoren The electric field produced by means of these primary elements is used for the energy supply of the located between the primary elements sensors and / or actuators 4.1 4.1 ... ... 4.n 4-n . ,
  • Vorzugsweise ist eine Kompensationsdrossel zwischen Einspeiseschaltung Preferably, a compensation choke between feed circuit 3 3 und den als Primärelementen dienenden Körpern geschaltet, so dass sich ein Schwingkreis mit vorgegebener Frequenz bildet. and connected to serve as primary elements bodies so as to form a resonant circuit with a predetermined frequency. Zweckmäßig ist diese Kompensationsdrossel einstellbar und regelbar, um auch bei veränderten Bedingungen eine Stabilität hinsichtlich der Frequenz des Schwingkreise sicherzustellen. Suitably, these compensation choke is adjusted and regulated to ensure stability in terms of the frequency of the oscillating circuits even under changed conditions. Alternativ kann auch eine feste Induktivität als Kompensationsdrossel Verwendung finden, die zusammen mit einer (hierzu beispielsweise parallel angeordneten) variablen, regelbaren Kapazität arbeitet. Alternatively, a fixed inductance can be found as compensation choke use, cooperates with a (this, for example, arranged in parallel) variable, variable capacitance.
  • 1 1 zeigt eine erste Grundanordnung der Primärelemente mit zwei parallel zueinander angeordneten Platten shows a first basic arrangement of the primary elements having two mutually parallel plates 1 1 , . 2 2 mit Oberflächen aus elektrisch leitfähigem Material (beispielsweise Kupfer oder Aluminium, vollflächig oder netzförmig, beispielsweise mittels Stahlbetongitter realisiert), wobei eine Einspeiseschaltung with surface made of electrically conductive material (e.g., copper or aluminum, the entire surface or reticulate, for example realized by means of reinforced concrete mesh), a feed circuit 3 3 mit beiden Platten (Elektroden) with two plates (electrodes) 1 1 , . 2 2 verbunden ist und sich eine Vielzahl von Sensoren und/oder Aktoren and extending a plurality of sensors and / or actuators 4.1 4.1 ... ... 4.n 4-n einer Maschine oder Anlage zwischen beiden im Sinne eines Plattenkondensators wirkenden Platten a machine or system between the two in terms of a plate capacitor acting plates 1 1 , . 2 2 befindet. located. Zur Kommunikation ist eine Basisstation For communication is a base station 15 15 vorgesehen, welche per Funk mit den Sensoren und/oder Aktoren provided that by radio with the sensors and / or actuators 4.1 4.1 ... ... 4.n 4-n kommuniziert. communicated. Die verwendete Funkfrequenz liegt dabei auf einem deutlich höheren Wert als die Frequenz des zur Energieversorgung produzierten elektrischen Feldes, um ausreichende Datenraten und/oder Latenzen zu erzielen. The radio frequency used is on a significantly higher value than the frequency of the produced energy to supply the electric field in order to achieve adequate data rates and / or latencies.
  • 2a 2a zeigt eine zweite Grundanordnung der Primärelemente mit einer Platte shows a second basic arrangement of the primary elements with a plate 2 2 und einem sich oberhalb der Platte 2 erstreckendem langgestrecktem Körper and located above the plate 2 erstreckendem elongate bodies 5 5 – beispielsweise eine Rohrleitung (Pipeline) – mit einer Oberfläche aus elektrisch leitfähigem Material. - for example, a pipeline (pipeline) - with a surface of electrically conductive material. Eine Einspeiseschaltung a feed circuit 3 3 ist mit Platte is connected to plate 2 2 und Körper and body 5 5 verbunden. connected. Zwischen Platte intermediate plate 2 2 und Körper and body 5 5 befindet sich eine Vielzahl von Sensoren und/oder Aktoren There are a host of sensors and / or actuators 4.1 4.1 ... ... 4.n 4-n . , Als Platte as plate 2 2 kann beispielsweise die Erdoberfläche dienen. for example can serve the Earth's surface. Zur Kommunikation ist wiederum eine Basisstation For communication is again a base station 15 15 vorgesehen. intended.
  • 2b 2 B zeigt eine Variante zur Grundanordnung gemäß shows a variant of the basic arrangement of 2a 2a mit einer langgestreckten Rohrleitung (beispielsweise mehrere hundert Meter lang) als Körper with an elongated tube (for example, several hundred meters long) as a body 5 5 , der Erdoberfläche als Platte , The surface of a plate 2 2 , mehreren, in gleichmäßigen Abständen längs der Rohrleitung verteilten und miteinander synchronisierten Einspeiseschaltungen , Multiple, distributed at equal intervals along the pipeline and synchronized with each feed circuits 3 3 (beispielsweise jeweils mit 220-Volt-Netzanschluss), einer Vielzahl von Sensoren und/oder Aktoren (For example, each with 220 volt power supply), a plurality of sensors and / or actuators 4.1 4.1 , . 4.2 4.2 ... ... 4.n 4-n und mehreren, in gleichmäßigen Abständen längs der Rohrleitung verteilten Repeatern and a plurality of distributed at regular intervals along the pipeline repeaters 16 16 (beispielsweise jeweils mit 220-Volt-Netzanschluss) für die Kommunikation, welche jeweils vorzugsweise als Basisstationen, Impulswiederholer, Rückmelder und Signal-Zwischenverstärker dienen und die Signale synchronisiert auffrischen. (For example, each 220-volt AC connection) for the communication refresh, each of which preferably serve as base stations, pulse repeater, repeater and signal repeater and synchronizes the signals. Bei kleineren Datenraten kann auch jeder einzelne Sensor und/oder Aktor als Repeater eingesetzt werden. For smaller data rates each individual sensor and / or actuator can be used as a repeater.
  • 3 3 zeigt eine dritte Grundanordnung der Primärelemente mit zwei parallel zueinander (beispielsweise horizontal) angeordneten Platten shows a third basic arrangement of the primary elements with two parallel (e.g., horizontal) disposed plates 1 1 , . 2 2 sowie zwei weiteren, im wesentlichen orthogonal hierzu (beispielsweise vertikal) und parallel zueinander angeordneten Platten and two further, substantially orthogonal thereto (for example vertical) and mutually parallel plates 6 6 , . 7 7 (gestrichelt gezeichnet). (Shown in phantom). Sämtliche Platten all plates 1 1 , . 2 2 , . 6 6 , . 7 7 weisen eine Oberfläche aus elektrisch leitfähigem Material auf. have a surface made of electrically conductive material. Eine erste Einspeiseschaltung A first feed circuit 3 3 ist mit beiden Platten is equipped with two plates 1 1 , . 2 2 verbunden. connected. Eine zweite Einspeiseschaltung A second feed circuit 8 8th (gestrichelt gezeichnet) speist die beiden Platten (Shown in phantom) feeds the two plates 6 6 , . 7 7 . , Die von den Einspeiseschaltungen By the feed circuits 3 3 , . 8 8th erzeugten Wechselgrößen weisen gleiche Frequenz, ähnliche Stromamplituden und ähnliche Spannungsamplituden auf und sind miteinander synchronisiert. Alternating quantities produced have the same frequency, similar current amplitude and similar voltage amplitudes and are synchronized with each other. Es wird eine Phasenverschiebung von vorzugsweise 90° zwischen der Wechselgröße der ersten Einspeiseschaltung There is a phase shift of preferably 90 ° between the alternating size of the first feed circuit 3 3 und der Wechselgröße der zweiten Einspeiseschaltung and the change amount of the second feed circuit 8 8th eingestellt. set.
  • 4 4 zeigt eine erste Ausführungsform der zur Energieeinspeisung eines Sensors oder Aktors shows a first embodiment of the power feed to a sensor or actuator 4.1 4.1 ... ... 4.n 4-n erforderlichen Sekundärelemente bzw. empfängerseitigen Baukomponenten. Secondary elements required or receiver-side structural components. Als Sekundärelemente weist der Sensor oder Aktor zwei parallel zueinander angeordnete Platten As secondary elements, the sensor or actuator two mutually parallel plates 9 9 , . 10 10 mit Oberflächen aus elektrisch leitfähigem Material auf. with surfaces of electrically conductive material. Die beiden Platten The two plates 9 9 , . 10 10 sind mit einem Energiewandler are connected to an energy converter 11 11 verbunden, welcher mittels eines AC/DC-Stellers die zwischen den Platten connected, which by means of an AC / DC controller between the plates 9 9 , . 10 10 erzeugte Wechselspannung U S in eine Gleichspannung wandelt und am Ausgang des Stellers einen Energiespeicher, vorzugsweise Kondensator, aufweist. AC voltage generated U S converts to a DC voltage at the output of the actuator an energy store, preferably comprising capacitor.
  • 5 5 zeigt eine zweite Ausführungsform der zur Energieeinspeisung eines Sensors oder Aktors shows a second embodiment of the power feed to a sensor or actuator 4.1 4.1 ... ... 4.n 4-n erforderlichen Sekundärelemente. Secondary elements required. Der Energiewandler The energy converter 11 11 ist hierbei mit lediglich einer Platte is in this case with only one plate 9 9 mit einer Oberfläche aus elektrisch leitfähigem Material verbunden, während der weitere Wechselspannungsanschluss des Energiewandlers connected to a surface of an electrically conductive material, while the other alternating voltage terminal of the energy converter 11 11 mit der an die Einspeiseschaltung with the feed circuit 3 3 angeschlossenen, vorzugsweise auf Erdpotential liegenden Platte connected, preferably at ground potential plate 2 2 verbunden ist. connected is. Platte plate 2 2 dient bei diesem Ausführungsbeispiel sowohl als Primärelement als auch als Sekundärelement. is used in this embodiment both as the primary element as well as a secondary element. Zwischen den Platten Between the plates 9 9 und and 2 2 wird die Wechselspannung U S erzeugt. the AC voltage U S is generated. Diese zweite Ausführungsform ist bei geerdeten Maschinen oder Anlagen, beispielsweise Robotern oder Prozessanlagen, sinnvoll. This second embodiment is in grounded machines or systems, such as robots or process plants, makes sense.
  • 6 6 zeigt eine dritte Ausführungsform der zur Energieeinspeisung eines Sensors oder Aktors shows a third embodiment of the power feed to a sensor or actuator 4.1 4.1 ... ... 4.n 4-n erforderlichen Sekundärelemente. Secondary elements required. Der Energiewandler The energy converter 11 11 ist hierbei mit im wesentlichen orthogonal zueinander angeordneten Platten is in this case substantially orthogonally arranged plates 9 9 , . 13 13 , . 14 14 verbunden, wobei jeder Platte , wherein each plate 9 9 , . 13 13 , . 14 14 eine weitere parallele Platte (in der Zeichnung nicht erkennbar) zugeordnet und ebenfalls mit dem Energiewandler a further parallel plate (not visible in the drawing) associated with the energy converter and also 11 11 verbunden ist. connected is. Die Platten The plates 9 9 , . 13 13 , . 14 14 sowie die parallelen Platten hierzu können beispielsweise auf den sechs Seitenflächen eines Würfels as well as the parallel plates this example, the six faces of a cube 12 12 angeordnet sein. be disposed. Die Platten The plates 9 9 , . 13 13 , . 14 14 sowie die hierzu parallelen Platten weisen jeweils zumindest teilweise aus elektrisch leitfähigem Material bestehende Oberflächen auf. and this parallel plates each comprise at least partially of electrically conductive material existing surfaces.
  • Vorzugsweise ist bei jedem Sensor und/oder Aktor Preferably, in each sensor and / or actuator 4 4 eine Kompensationsdrossel zwischen Energiewandler a compensation choke between energy converter 11 11 und den als Sekundärelementen dienenden Körpern geschaltet, so dass sich ein Schwingkreis mit vorgegebener Frequenz bildet, wobei diese Frequenz selbstverständlich auf die Frequenz des mittels der Primärelemente produzierten, mittelfrequenten elektrischen Feldes abgestimmt. and switched to serving as secondary elements bodies, so that a resonant circuit is a predetermined frequency, said frequency tuned to the frequency of course, produced by means of the primary cells, medium-frequency electric field. Auf diese Art und Weise wird die über das elektrische Feld zwischen Primärelementen und Sekundärelementen bewerkstelligte elektrische Energieübertragung optimiert. In this way, the electric power transmission bewerkstelligte via the electric field between the primary elements and secondary elements is optimized.
  • Selbstverständlich sind die Sensoren und/oder Aktoren Of course, the sensors and / or actuators 4.1 4.1 ... ... 4.n 4-n des Systems mit den zum Betrieb erforderlichen drahtlosen Kommunikationseinrichtungen (Empfang/Senden von Funksignalen) versehen. of the system provided with the necessary for the operation of wireless communication devices (receiving / transmitting radio signals). So ist jeder Sensor mit einer Sendeeinrichtung ausgestattet, welche interessierende Sensor-Informationen beinhaltende Sensorsignale oder gegebenenfalls Fehlermeldungen als Funksignale an eine mit einem Zentralrechner der Maschine oder Anlage verbundene Empfangseinrichtung in der Basisstation Thus, each sensor is equipped with a transmitting device, which sensor information of interest-containing sensor signals or, where appropriate error messages as radio signals to a connected with a central computer of the machine or plant in receiving means of the base station 15 15 bzw. im Repeater abgibt. and emits in the repeater. Zweckmäßig ist jeder Sensor zusätzlich mit einer Empfangseinrichtung versehen, um hierdurch spezifische Parametervorgaben oder auch Emp fangsbestätigungen vom Sender des Zentralrechners bzw. der Basisstation bzw. des Repeaters empfangen zu können. Suitably, each sensor is additionally provided with a receiving device, thereby specific parameter specifications or Emp fang confirmations from the transmitter of the central computer or the base station or the repeater can receive to.
  • Des weiteren ist jeder Aktor mit einer Empfangseinrichtung ausgestattet, welche Ansteuersignale zur Aktivierung/Deaktivierung des Aktors oder Signale zur Einstellung spezifischer Parameter einer mit dem Zentralrechner der Maschine oder Anlage verbundenen Sendeeinrichtung der Basisstation Further, each actuator is equipped with a receiving device which control signals for activation / deactivation of the actuator or signals for setting specific parameters of a connected to the central computer of the machine or system transmitting means of the base station 15 15 bzw. des Repeaters empfängt. or receives the repeater.
  • Zweckmäßig ist jeder Aktor zusätzlich mit einer Sendeeinrichtung versehen, um hierdurch den aktuellen Zustand des Aktors sowie gegebenenfalls Fehlermeldungen/Empfangsbestätigungen an den Zentralrechner bzw. Basisstation bzw. Repeater melden zu können. Suitably, each actuator is additionally provided with a transmitting device, to thereby report the current status of the actuator and, if appropriate error messages / acknowledgments to the host or base station or a repeater.
  • 1 1
    Platte mit Oberfläche aus elektrisch leitfähigem Material Plate with the surface of electrically conductive material
    2 2
    Platte (eventuell Erdoberfläche) Plate (possibly Earth's surface)
    3 3
    Einspeiseschaltung feed circuit
    4 4
    Sensoren und/oder Aktoren Sensors and / or actuators
    5 5
    langgestreckter Körper mit Oberfläche aus elektrisch leitfähigem Material an elongated body with a surface of electrically conductive material
    6 6
    Platte (orthogonal zu Plate (orthogonal to 1 1 ) )
    7 7
    Platte plate
    8 8th
    Einspeiseschaltung feed circuit
    9 9
    Platte mit Oberfläche aus elektrisch leitfähigem Material Plate with the surface of electrically conductive material
    10 10
    Platte plate
    11 11
    Energiewandler mit AC/DC-Steller und Energiespeicher Energy converters with AC / DC controller and energy storage
    12 12
    Würfel cube
    13 13
    Platte (orthogonal zu Plate (orthogonal to 10 10 ) )
    14 14
    Platte (orthogonal zu Plate (orthogonal to 10 10 ) )
    15 15
    Basisstation für Kommunikation Base station for communication
    16 16
    Repeater repeater

Claims (19)

  1. Anordnung zur drahtlosen Versorgung eines Systems mit einer Vielzahl Sensoren und/oder Aktoren ( An arrangement for the wireless supply of a system with a large number of sensors and / or actuators ( 4 4 ) mit elektrischer Energie, gekennzeichnet durch – eine aus mindestens zwei, im wesentlichen parallel zueinander angeordneten Körpern ( ) With electrical energy, characterized by - a arranged at least two, substantially parallel bodies ( 1 1 , . 2 2 , . 5 5 , . 6 6 , . 7 7 ) aus elektrisch leitfähigem Material bestehende Primärelemente-Konfiguration, wobei mindestens eine Einspeiseschaltung ( ) Consisting of an electrically conductive material primary configuration elements, at least one feed circuit ( 3 3 , . 8 8th ) mit diesen Körpern elektrisch verbunden ist und diese Körper ( ) Is electrically connected to these bodies and these bodies ( 1 1 , . 2 2 , . 5 5 , . 6 6 , . 7 7 ) mit einer mittelfrequenten Wechselspannung mit einer Frequenz größer oder gleich 120 kHz beaufschlagt, wodurch ein entsprechendes elektrisches Feld produziert wird, – eine aus mindestens zwei, im wesentlichen parallel zueinander angeordneten Körpern ( ) Is greater than or equal to 120 kHz applied, so that an appropriate electric field is produced, with a medium-frequency alternating voltage with a frequency - a arranged at least two, substantially parallel bodies ( 9 9 , . 10 10 , . 13 13 , . 14 14 ) aus elektrisch leitfähigem Material bestehende Sekundärelemente-Konfiguration eines jeden Sensors und/oder Aktors ( ) Consisting of an electrically conductive material secondary elements configuration of each sensor and / or actuator ( 4 4 ), wobei ein Energiewandler ( ), Wherein an energy converter ( 11 11 ) elektrisch mit diesen Körpern ( ) Electrically (with these bodies 9 9 , . 10 10 , . 13 13 , . 14 14 ) verbunden ist und die zwischen diesen Körpern aus dem elektrischen Feld erzeugte Wechselspannung in eine Gleichspannung wandelt. ), And converts the AC voltage generated between these bodies from the electric field into a DC voltage.
  2. Anordnung nach Anspruch 1, gekennzeichnet durch zwei parallel zueinander angeordnete Platten ( Arrangement according to claim 1, characterized by two mutually parallel plates ( 1 1 , . 2 2 ) als Primärelemente. ) As primary elements.
  3. Anordnung nach Anspruch 2, gekennzeichnet durch mindestens zwei zusätzliche, parallel zueinander und orthogonal zu den weiteren Platten ( Arrangement according to claim 2, characterized by at least two additional, parallel and orthogonal (to the further plates 1 1 , . 2 2 ) angeordnete Platten ( ) Arranged plates ( 6 6 , . 7 7 ) als Primärelemente, so dass von den Platten ( ) As the primary elements, so that (from the plates 1 1 , . 2 2 , . 6 6 , . 7 7 ) ein Kubus oder Quader umschlossen wird, innerhalb dessen sich die Sensoren und/oder Aktoren ( ) Is a cube or cuboid is enclosed within which the sensors and / or actuators ( 4 4 ) befinden. ) are located.
  4. Anordnung nach Anspruch 1, gekennzeichnet durch eine Platte ( Arrangement according to claim 1, characterized by a plate ( 2 2 ) und einen sich in vorgegebenem Abstand parallel zur Platte erstreckendem langgestreckten Körper ( ) And a erstreckendem located at a predetermined distance parallel to the plate elongated body ( 5 5 ), beispielsweise eine Rohrleitung, als Primärelemente. ), For example a pipe line, as the primary elements.
  5. Anordnung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass zur Bildung eines Schwingkreises vorgegebener Frequenz eine Kompensationsdrossel zwischen Einspeiseschaltung ( Arrangement according to one of the preceding claims, characterized in that for forming a resonant circuit of a predetermined frequency, a feed circuit between compensation choke ( 3 3 , . 8 8th ) und Primärelement geschaltet ist. ) And primary element is connected.
  6. Anordnung nach Anspruch 5, gekennzeichnet durch eine einstellbare und regelbare Kompensationsdrossel. Arrangement according to claim 5, characterized by an adjustable and controllable shunt reactor.
  7. Anordnung nach Anspruch 5, gekennzeichnet durch eine feste Induktivität als Kompensationsdrossel, die zusammen mit einer variablen, regelbaren Kapazität arbeitet. Arrangement according to claim 5, characterized by a fixed inductance compensation throttle which cooperates with a variable, adjustable capacitance.
  8. Anordnung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass mehrere miteinander synchronisierte Einspeiseschaltungen ( Arrangement according to one of the preceding claims, characterized in that several mutually synchronized feed circuits ( 3 3 ) für die Versorgung der Primärelemente vorgesehen sind. ) Are provided for the supply of primary cells.
  9. Anordnung nach Anspruch 1, gekennzeichnet durch zwei parallel zueinander angeordnete Platten ( Arrangement according to claim 1, characterized by two mutually parallel plates ( 9 9 , . 10 10 ) als Sekundärelemente. ) As secondary elements.
  10. Anordnung nach Anspruch 9, gekennzeichnet durch mindestens zwei zusätzliche, parallel zueinander und orthogonal zu den weiteren Platten ( Arrangement according to claim 9, characterized by at least two additional, parallel and orthogonal (to the further plates 9 9 , . 10 10 ) angeordnete Platten ( ) Arranged plates ( 13 13 , . 14 14 ) als Sekundärelemente. ) As secondary elements.
  11. Anordnung nach Anspruch 10, dadurch gekennzeichnet, dass die Platten ( Arrangement according to claim 10, characterized in that the plates ( 9 9 , . 10 10 , . 13 13 , . 14 14 ) auf den sechs Seitenflächen eines Würfels ( ) (On the six faces of a cube 12 12 ) angeordnet sind. ) Are arranged.
  12. Anordnung nach Anspruch 1, dadurch gekennzeichnet, dass ein und derselbe Körper ( Arrangement according to claim 1, characterized in that one and the same body ( 2 2 ) sowohl als Primärelement als auch als Sekundärelement dient. ) Serves both as a primary element and a secondary element.
  13. Anordnung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass zur Bildung eines Schwingkreises vorgegebener Frequenz eine Kompensationsdrossel zwischen Energiewandler ( Arrangement according to one of the preceding claims, characterized in that for forming a resonant circuit of a predetermined frequency compensation choke between energy converter ( 11 11 ) und Sekundärelement geschaltet ist. ) And the secondary element is connected.
  14. Anordnung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass jeder Sensor mit einer Sendeeinrichtung ausgestattet ist, welche interessierende Sensor-Informationen beinhaltende Sensorsignale oder gegebenenfalls Fehlermeldungen oder Empfangsbestätigungen als Funksignale an eine Basisstation ( Arrangement according to one of the preceding claims, characterized in that each sensor is equipped with a transmitting device, which sensor information of interest-containing sensor signals or, where appropriate error messages or acknowledgments (as radio signals to a base station 15 15 ) oder einen Repeater ( ) Or a repeater ( 16 16 ) abgibt. ) Outputs.
  15. Anordnung nach Anspruch 14, dadurch gekennzeichnet, dass jeder Sensor zusätzlich mit einer Empfangseinrichtung versehen ist, um hierdurch spezifische Parametervorgaben und/oder Empfangsbestätigungen von der Basisstation ( Arrangement according to claim 14, characterized in that each sensor is additionally provided with a receiving device, thereby specific parameter specifications and / or receiving acknowledgments (from the base station 15 15 ) oder von einem Repeater ( ) Or (by a repeater 16 16 ) zu empfangen. ) to recieve.
  16. Anordnung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass jeder Aktor mit einer Empfangseinrichtung ausgestattet ist, um Ansteuersignale zur Aktivierung/Deaktivierung des Aktors und/oder Signale zur Einstellung spezifischer Parameter und/oder Empfangssignale als Funksignale einer Basisstation ( Arrangement according to one of the preceding claims, characterized in that each actuator is equipped with a receiving means for receiving control signals for activation / deactivation of the actuator and / or signals to specific parameters and / or received signals as radio signals setting a base station ( 15 15 ) oder von einem Repeater ( ) Or (by a repeater 16 16 ) zu empfangen. ) to recieve.
  17. Anordnung nach Anspruch 16, dadurch gekennzeichnet, dass jeder Aktor zusätzlich mit einer Sendeeinrichtung versehen ist, um hierdurch den aktuellen Zustand des Aktors sowie gegebenenfalls Fehlermeldungen oder Empfangsbestätigungen an die Basisstation ( Arrangement according to claim 16, characterized in that each actuator is additionally provided with a transmitting device, thereby (the current state of the actuator and, optionally, error messages or acknowledgments to the base station 15 15 ) oder an einen Repeater ( ) Or (to a repeater 16 16 ) zu melden. ) Report to.
  18. Anordnung nach einem der Ansprüche 14 – 17, dadurch gekennzeichnet, dass zusätzlich mindestens ein Repeater ( Arrangement according to one of claims 14-17, characterized in that in addition (at least one repeater 16 16 ) zur Signalwiederholung bzw. Zwischenverstärkung vorgesehen ist. ) Is provided for signal repetition or repeater.
  19. Anordnung nach Anspruch 18, dadurch gekennzeichnet, dass ein Sensor und/oder Aktor die Funktion eines Repeaters ( Arrangement according to claim 18, characterized in that a sensor and / or actuator (the function of a repeater 16 16 ) übernimmt. ) takes over.
DE10304584A 2003-02-05 2003-02-05 Communication of power and data to sensors and actuators in a process uses field transmission and avoids wiring Withdrawn DE10304584A1 (en)

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