EP0788250A2 - Optical interface for the diagnosis of optoelectronic cooking appliance control - Google Patents

Optical interface for the diagnosis of optoelectronic cooking appliance control Download PDF

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Publication number
EP0788250A2
EP0788250A2 EP97100681A EP97100681A EP0788250A2 EP 0788250 A2 EP0788250 A2 EP 0788250A2 EP 97100681 A EP97100681 A EP 97100681A EP 97100681 A EP97100681 A EP 97100681A EP 0788250 A2 EP0788250 A2 EP 0788250A2
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EP
European Patent Office
Prior art keywords
receiver
transmitter
optical interface
feature
interface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP97100681A
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German (de)
French (fr)
Other versions
EP0788250A3 (en
Inventor
Thomas Dipl.-Ing. Gay
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BSH Hausgeraete GmbH
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Siemens AG
BSH Bosch und Siemens Hausgeraete GmbH
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Application filed by Siemens AG, BSH Bosch und Siemens Hausgeraete GmbH filed Critical Siemens AG
Publication of EP0788250A2 publication Critical patent/EP0788250A2/en
Publication of EP0788250A3 publication Critical patent/EP0788250A3/en
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
    • G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C2201/00—Transmission systems of control signals via wireless link
    • G08C2201/20—Binding and programming of remote control devices
    • G08C2201/21—Programming remote control devices via third means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C2201/00—Transmission systems of control signals via wireless link
    • G08C2201/50—Receiving or transmitting feedback, e.g. replies, status updates, acknowledgements, from the controlled devices

Definitions

  • the invention relates to an optical interface, in particular for diagnosing an optoelectronic hotplate control, according to claim 1.
  • an external programming device for data input or output for programming systems for process control or the like is known, its coupling to the unit to be programmed as an optically working interface with mutually closed contact surfaces and mutually assignable light Transmitters or light sensors.
  • such an optical interface in particular when applied to an external programming and / or diagnostic unit for an optical hotplate controller covered by a protective pane, is to be upgraded with a view to high insensitivity to external or stray influences.
  • the coupling according to the invention between a programming and / or diagnostic unit on the one hand and a control unit on the other hand ensures a high transmission quality of the transmitted pulse-width-modulated signals, despite the fact that a mutual galvanic connection is advantageous for simple handling, since the high steepness of the edge means that it is conventional and has no steep edges Ambient light and the high pulse amplitude of transmission pulses from conventional remote controls that are usually not in the immediate vicinity have no influence.
  • FIG. 1 shows in the structural application configuration and FIG. 3 in the associated block diagram shows an optical interface between an external programming and / or diagnostic unit DE above a radiation-permeable ceramic pane CE provided as a protective cover and a control unit MC in the form of a microcontroller below the ceramic pane.
  • Disc CE as a component of an optoelectronic hotplate control arranged and connected on a circuit board (PL) with a plurality of optoelectronic touch keys (not shown here).
  • a first transmitter S1 and a first receiver E1 are used for optical transmission on the upper side of the ceramic disc CE and a second receiver E2 assigned to the first transmitter S1 and a second transmitter S2 assigned to the first receiver E1 are located below the ceramic disc CE.
  • the second transmitter S2 and the second receiver E2 are connected to a serial interface output of the microcontroller, which a controller of this type, including the necessary test software, generally has.
  • the latter advantageously remains blocked during the transmission time of the activated transmitter; the data are transmitted in half-duplex mode, in which only one of the participants alternately transmits, while the other participant only receives.
  • an interface converter SW is provided on the external side between the first transmitter S1 and the first receiver E1, on the one hand, and the external programming and / or diagnostic unit DE, on the other hand, which converts or outputs the programming and / or diagnostic unit DE. incoming signals converted to the so-called TTL level.
  • this microcontroller itself can be used as a diagnostic component, in particular during the production process, in order to be able to check the correct functioning of the entire hotplate control; In addition, an initialization or update of operating parameters and, if necessary, customer service can be quickly localized, the errors are possible.
  • FIG. 2 shows in its upper first picture the example of a pulse train for a pulse-width-modulated signal which can be transmitted without interference via the first transmitter S1 to the second receiver E2 by means of infrared radiation through the ceramic disc CE and for a specific command configuration in the microcontroller MC the control unit, which in turn can then provide feedback via the second transmitter S2 by infrared radiation through the ceramic disc CE to the first receiver E1 and thus to the programming and / or diagnostic unit.
  • the output signals are usually set to high, the data bits to active low.
  • an infrared LED provided as the first transmitter S1 is pulsed, whereby no current flows during the transmission pole breaks, but a short current surge is generated during the respective pulse-compliant switch-on in such a way that the necessary high slope and high pulse amplitude is achieved;
  • the infrared signal formed in this way is shown with a steep flank during the respective pulse change in accordance with the first signal curve.
  • the corresponding signal arriving below the ceramic disc CE at the second receiver E2 is made up of the signal emitted by the first transmitter S1 with increased edge steepness and pulse amplitude and a superimposed noise caused by disturbance variables such as e.g. Room lighting and remote controls together.
  • This signal is the input signal of a differentiator DI downstream of the second receiver E2, the output signal of which is a function of the steepness of its input signals.
  • a signal change corresponding to the processed pulse edges of the signal curve in the first image leads to a short output pulse with a high amplitude, while a slow signal change only leads to a small output amplitude. This last state of affairs is indicated in the waveform of the fourth image in FIG. 2.
  • the differentiator DE is assigned a Schmitt trigger ST with an upper and a lower switching threshold, indicated with a dashed curve in the fourth image, by means of which the original pulse-width-modulated signal according to the signal curve in the fifth image can be back-modulated that a pulse edge is set by a large output amplitude each time a switching threshold is reached.

Abstract

The optical interface provides bi-directional optical data transmission using serial, specific pulse-width modulated (PWM) signals. The pulses of the PWM signals have steep flanks and/or pulse amplitude w.r.t. the simultaneous noise signals. The interface transmits data to a receiver which is connected to a differentiator which is in turn connected to a Schmitt trigger. The interface receives data from a programming and/or diagnosis device via an interface converter. The receivers at the interface input and output sides are inactive while the transmitters are active. The optical interface has a micro-controller as its central control unit.

Description

Die Erfindung bezieht sich auf eine optische Schnittstelle, insbesondere zur Diagnose einer optoelektronischen Kochstellensteuerung, gemäß Patentanspruch 1.The invention relates to an optical interface, in particular for diagnosing an optoelectronic hotplate control, according to claim 1.

Durch die DE-A1-39 21 344 ist ein externes Progammiergerät für eine Datenein- bzw. Datenausgabe zum Programmieren von Systemen zur Prozeßsteuerung oder dergleichen bekannt, dessen Ankopplung an die zu programmierende Einheit als optisch arbeitende Schittstelle mit beidseitig geschlossenen Berührungsflächen und gegenseitig einander zuordenbaren Licht-Sendern bzw. Licht-Sensoren ausgebildet ist.From DE-A1-39 21 344 an external programming device for data input or output for programming systems for process control or the like is known, its coupling to the unit to be programmed as an optically working interface with mutually closed contact surfaces and mutually assignable light Transmitters or light sensors.

Gemäß Aufgabe vorliegender Erfindung soll eine derartige optische Schnittstelle, insbesondere in Anwendung auf eine externe Programmier- und/oder Diagnoseeinheit für eine durch eine Schutzscheibe abgedeckte optische Kochstellensteuerung, im Hinblick auf hohe Unempfindlichkeit gegenüber Fremd- bzw. Streulicheinflüsse ertüchtigt werden.According to the object of the present invention, such an optical interface, in particular when applied to an external programming and / or diagnostic unit for an optical hotplate controller covered by a protective pane, is to be upgraded with a view to high insensitivity to external or stray influences.

Die erfindungsgemäße Ankopplung zwischen einer Programmier- und/oder Diagnoseeinheit einerseits und einer Steuereinheit andererseits gewährleistet trotz des für eine einfache Handhabung vorteilhaften Verzichts auf eine gegenseitige galvanische Verbindung eine hohe Übertragungsgüte der gesendeten pulsweitenmodulierten Signale, da durch die hohe Flankensteilheit ein herkömmliches, keine steilen Flanken aufweisendes Raumlicht und durch die hohe Pulsamplitude Sendeimpulse von üblicherweise nicht in unmittelbarer Nähe befindlichen üblichen Fernbedienungen ohne Einfluß bleiben.The coupling according to the invention between a programming and / or diagnostic unit on the one hand and a control unit on the other hand ensures a high transmission quality of the transmitted pulse-width-modulated signals, despite the fact that a mutual galvanic connection is advantageous for simple handling, since the high steepness of the edge means that it is conventional and has no steep edges Ambient light and the high pulse amplitude of transmission pulses from conventional remote controls that are usually not in the immediate vicinity have no influence.

Die Erfindung sowie weitere vorteilhafte Ausgestaltungen der Erfindung gemäß Merkmalen der Unteransprüche werden im folgenden anhand schematisch dargestellter Ausführungsbeispiele in der Zeichnung näher erläutert; darin zeigen:

FIG 1
Eine optische Schnittstelle mit auf eine Ceran-Abdeckscheibe einer Kochstellensteuerung aufgesetzter externer Programmier- und/oder Diagnoseeinheit;
FIG 2
ausgehend von einem durch die Programmier- und/oder Diagnoseeinheit abgegebenen pulsweitenmodulierten Diagnosesignal dessen erfindungsgemäße Bearbeitung zur Erzielung einer hohen Übertragungsgüte;
FIG 3
das Blockschaltbild zu der in FIG 1 in seiner Anwendungsfiguration dargestellten optischen Schnittstelle.
The invention and further advantageous embodiments of the invention according to the features of the subclaims are explained in more detail below with reference to schematically illustrated exemplary embodiments in the drawing; show in it:
FIG. 1
An optical interface with an external programming and / or diagnostic unit placed on a ceramic cover plate of a hotplate controller;
FIG 2
on the basis of a pulse-width-modulated diagnostic signal emitted by the programming and / or diagnostic unit, the processing according to the invention for achieving a high transmission quality;
FIG 3
the block diagram of the optical interface shown in FIG 1 in its application configuration.

FIG 1 zeigt in der baulichen Anwendungsfiguration und FIG 3 im zugehörigen Blockschaltbild eine optische Schnittstelle zwischen einer externen Programmier- und/oder Diagnoseeinheit DE oberhalb einer als Schutzabdeckung vorgesehenen strahlungsdurchlässigen Ceran-Scheibe CE und einer Steuereinheit MC in Form eines Mikro-Controllers unterhalb der Ceran-Scheibe CE als Bestandteil einer auf einer Platine (PL) angeordneten und verschalteten optoelektronischen Kochstellensteuerung mit hier nicht näher dargestellten mehreren optoelektronischen Berührungstasten. Zur optischen Übertragung dienen auf der Oberseite der Ceran-Scheibe CE ein erster Sender S1 sowie ein erster Empfänger E1 sowie unterhalb der Ceran-Scheibe CE ein dem ersten Sender S1 zugeordneter zweiter Empfänger E2 und ein dem ersten Empfänger E1 zugeordneter zweiter Sender S2. Der zweite Sender S2 und der zweite Empfänger E2 sind an einen seriellen Schnittstellenausgang des Mikro-Controllers angeschlossen, über den ein derartiger Controller einschließlich der notwendigen Prüfsoftware in der Regel verfügt.1 shows in the structural application configuration and FIG. 3 in the associated block diagram shows an optical interface between an external programming and / or diagnostic unit DE above a radiation-permeable ceramic pane CE provided as a protective cover and a control unit MC in the form of a microcontroller below the ceramic pane. Disc CE as a component of an optoelectronic hotplate control arranged and connected on a circuit board (PL) with a plurality of optoelectronic touch keys (not shown here). A first transmitter S1 and a first receiver E1 are used for optical transmission on the upper side of the ceramic disc CE and a second receiver E2 assigned to the first transmitter S1 and a second transmitter S2 assigned to the first receiver E1 are located below the ceramic disc CE. The second transmitter S2 and the second receiver E2 are connected to a serial interface output of the microcontroller, which a controller of this type, including the necessary test software, generally has.

Um einen Störeinfluß, insbesondere durch unmittelbare Reflexion an der Schutzabdeckung, eines aktivierten Senders auf seinen zugehörigen, in der gleichen Sende- bzw. Empfangsebene benachbarten Empfänger auszuschließen, bleibt dieser in vorteilhafter Weise wahrend der Sendezeit des aktivierten Senders gesperrt; die Daten werden im Halbduplexverfahren übertragen, bei dem abwechselnd nur einer der Teilnehmer sendet, wahrend der andere Teilnehmer nur empfängt.In order to prevent interference, in particular due to direct reflection on the protective cover, of an activated transmitter on its associated receiver, which is adjacent in the same transmission or reception level, the latter advantageously remains blocked during the transmission time of the activated transmitter; the data are transmitted in half-duplex mode, in which only one of the participants alternately transmits, while the other participant only receives.

Zur normierten Anpassung ist auf der externen Seite zwischen dem ersten Sender S1 und dem ersten Empfänger E1 einerseits sowie der externen Programmier- und/oder Diagnoseeinheit DE andererseits ein Schnittstellenwandler SW vorgesehen, der die von der Programmier- und/oder Diagnoseeinheit DE aus- bzw. eingehenden Signale auf sogenannten TTL-Pegel konvertiert.For standardized adaptation, an interface converter SW is provided on the external side between the first transmitter S1 and the first receiver E1, on the one hand, and the external programming and / or diagnostic unit DE, on the other hand, which converts or outputs the programming and / or diagnostic unit DE. incoming signals converted to the so-called TTL level.

Durch die Einbeziehung des an sich für die Kochstellensteuerung vorgesehenen Mikro-Controllers kann, insbesondere während des Fertigungsablaufs, dieser Mikro-Controller selbst als diagnostizierendes Bauteil mitverwendet werden, um die korrekte Funktion der gesamten Kochstellensteuerung prüfen zu können; darüber hinaus ist auf einfache Weise eine Initialisierung bzw. Aktualisierung von Betriebsparametern und bei einem eventuell notwendigen Kundendiensteinsatz eine schnelle Lokalisierung der Fehler möglich.Through the inclusion of the microcontroller provided per se for the hotplate control, this microcontroller itself can be used as a diagnostic component, in particular during the production process, in order to be able to check the correct functioning of the entire hotplate control; In addition, an initialization or update of operating parameters and, if necessary, customer service can be quickly localized, the errors are possible.

FIG 2 zeigt in seinem oberen ersten Bild das Beispiel einer Pulsfolge für ein pulsweitenmoduliertes Signal, das über den ersten Sender S1 störungsfrei an den zweiten Empfänger E2 mittels Infrarotstrahlung durch die Ceran-Scheibe CE zu übertragen ist und zu einer bestimmten Befehlskonstellation im Mikro-Controller MC der Steuereinheit führen soll, die seinerseits dann eine Rückmeldung über den zweiten Sender S2 durch Infrarotstrahlung durch die Ceran-Scheibe CE an den ersten Empfänger E1 und somit an die Programmier- und/oder Diagnoseeinheit geben kann. Die Ausgangssignale sind dabei normalerweise auf High, die Datenbits auf aktiv Low gesetzt.2 shows in its upper first picture the example of a pulse train for a pulse-width-modulated signal which can be transmitted without interference via the first transmitter S1 to the second receiver E2 by means of infrared radiation through the ceramic disc CE and for a specific command configuration in the microcontroller MC the control unit, which in turn can then provide feedback via the second transmitter S2 by infrared radiation through the ceramic disc CE to the first receiver E1 and thus to the programming and / or diagnostic unit. The output signals are usually set to high, the data bits to active low.

Entsprechend den Pulsen des Signalverlaufes im ersten Bild in FIG 2 wird eine als erster Sender S1 vorgesehene Infrarot-LED gepulst, wobei in dieser während der Übertragungspolpausen kein Strom fließt, jedoch beim jeweiligen pulskonformen Einschalten ein kurzer Stromstoß derart erzeugt wird, daß die notwendige hohe Flankensteilheit und hohe Pulsamplitude erreicht wird; im zweiten Signalverlauf von FIG 2 ist das derart gebildete ausgesendete Infrarotsignal mit steiler Flanke beim jeweiligen Pulswechsel gemäß dem ersten Signalverlauf dargestellt. Das entsprechende unterhalb der Ceran-Scheibe CE am zweiten Empfänger E2 ankommende Signal setzt sich gemäß dem dritten Signalverlauf in FIG 2 aus dem vom ersten Sender S1 abgestrahlten Signal mit erhöhter Flankensteilheit und Pulsamplitude und einem überlagerten Rauschen durch Störgrößen wie z.B. Raumbeleuchtung und Fernbedienungen zusammen.Corresponding to the pulses of the signal curve in the first picture in FIG. 2, an infrared LED provided as the first transmitter S1 is pulsed, whereby no current flows during the transmission pole breaks, but a short current surge is generated during the respective pulse-compliant switch-on in such a way that the necessary high slope and high pulse amplitude is achieved; In the second signal curve of FIG. 2, the infrared signal formed in this way is shown with a steep flank during the respective pulse change in accordance with the first signal curve. According to the third signal curve in FIG. 2, the corresponding signal arriving below the ceramic disc CE at the second receiver E2 is made up of the signal emitted by the first transmitter S1 with increased edge steepness and pulse amplitude and a superimposed noise caused by disturbance variables such as e.g. Room lighting and remote controls together.

Dieses Signal ist Eingangssignal eines nach einer Ausgestaltung der Erfindung dem zweiten Empfänger E2 nachgeschalteten Differenzierers DI, dessen Ausgangssignal eine Funktion der Steilheit seiner Eingangssignale ist. Eine Signaländerung entsprechend den bearbeiteten Pulsflanken des Signalverlaufs im ersten Bild führt zu einem kurzen Ausgangsimpuls mit hoher Amplitude, während eine langsame Signaländerung nur zu einer kleinen Ausgangsamplitude führt. Dieser letzte Sachverhalt ist im Signalverlauf des vierten Bildes in FIG 2 angedeutet. Dem Differenzierer DE ist zur Identifizierung eines dem ursprünglichen pulsweitenmodulierten Signal entsprechenden Befehlsignals ein Schmitt-Trigger ST mit einer oberen und einer unteren, mit gestrichelter Kennlinie im vierten Bild angedeuteten, Schaltschwellen zugeordnet, mit Hilfe derer das ursprünglich pulsweitenmodulierte Signal gemäß dem Signalverlauf im fünften Bild dadurch wieder rückmoduliert werden kann, daß bei jeweiligem Erreichen einer Schaltschwelle durch eine große Ausgangsamplitude eine Pulsflanke gesetzt wird.This signal is the input signal of a differentiator DI downstream of the second receiver E2, the output signal of which is a function of the steepness of its input signals. A signal change corresponding to the processed pulse edges of the signal curve in the first image leads to a short output pulse with a high amplitude, while a slow signal change only leads to a small output amplitude. This last state of affairs is indicated in the waveform of the fourth image in FIG. 2. To differentiate a command signal corresponding to the original pulse-width modulated signal, the differentiator DE is assigned a Schmitt trigger ST with an upper and a lower switching threshold, indicated with a dashed curve in the fourth image, by means of which the original pulse-width-modulated signal according to the signal curve in the fifth image can be back-modulated that a pulse edge is set by a large output amplitude each time a switching threshold is reached.

Claims (7)

Optische Schnittstelle mit bidirektionaler optischer Datenübertragung zwischen einer Programmier- und/oder Diagnoseeinheit (DE) mit einem ersten Sender (S1) und einem ersten Empfänger (E1) einerseits und einer Steuereinheit (MC) mit einem zweiten Sender (S2) und einem zweiten Empfänger (E2) andererseits mit folgenden Merkmalen: a) Zur Datenübertragung sind seriell, spezifisch pulsweitenmodulierte Signale vorgesehen; b) die Pulse der pulsweitenmodulierten Signale sind senderseitig mit einer im Vergleich zu gleichzeitigen Streusignalen erhöhten Flankensteilheit und/oder Pulsamplitude versehen. Optical interface with bidirectional optical data transmission between a programming and / or diagnostic unit (DE) with a first transmitter (S1) and a first receiver (E1) on the one hand and a control unit (MC) with a second transmitter (S2) and a second receiver ( E2) on the other hand with the following characteristics: a) Serial, specifically pulse-width-modulated signals are provided for data transmission; b) the pulses of the pulse-width modulated signals are provided on the transmitter side with an increased slope and / or pulse amplitude compared to simultaneous scatter signals. Optische Schnittstelle nach Anspruch 1 mit dem Merkmal: c) Dem zweiten Empfänger (E2) ist ein Differenzierer (DI) nachgeschaltet. Optical interface according to claim 1 with the feature: c) The second receiver (E2) is followed by a differentiator (DI). Optische Schnittstelle nach Anspruch 2 mit dem Merkmal: d) Dem Differenzierer (DI) ist ein Schmitt-Trigger (ST) nachgeschaltet. Optical interface according to claim 2 with the feature: d) The differentiator (DI) is followed by a Schmitt trigger (ST). Optische Schnittstelle nach zumindest einem der Ansprüche 1-3 mit dem Merkmal: e) Der Programmier- und/oder Diagnoseeinheit (DE) ist ein Schnittstellenwandler (SW) nachgeschaltet. Optical interface according to at least one of claims 1-3 with the feature: e) The programming and / or diagnostic unit (DE) is followed by an interface converter (SW). Optische Schnittstelle nach zumindest einem der Ansprüche 1-3 mit dem Merkmal: f) Der Empfänger (E1 bzw.E2) einer Sende- und Empfangsebene (S1,E1 bzw.S2,E2), insbesondere der erste Empfänger (E1), ist jeweils unaktiviert bei aktiviertem Sender (S1 bzw.S2) seiner Sende- und Empfangsebene. Optical interface according to at least one of claims 1-3 with the feature: f) The receiver (E1 or E2) of a transmission and reception level (S1, E1 or S2, E2), in particular the first receiver (E1), is in each case inactivated when the transmitter (S1 or S2) of its transmission and Reception level. Optische Schnittstelle nach zumindest einem der Ansprüche 1-5 mit den Merkmalen: g) Der zweite Sender (S2) und der zweite Empfänger (E2) sind Teile einer hinter einer strahlungsdurchlässigen Schutzabdeckung, insbesondere einer Ceran-Scheibe (CE), angeordneten optoelektronischen Kochstellensteuerung; h) der erste Sender (S1) und der erste Empfänger (E1) sind Teile einer zugeordneten, vor der Schutzabdeckung fixierbaren Programm- und/oder Diagnoseeinheit (DE). Optical interface according to at least one of claims 1-5 with the features: g) The second transmitter (S2) and the second receiver (E2) are parts of an optoelectronic hotplate control arranged behind a radiation-transparent protective cover, in particular a ceramic plate (CE); h) the first transmitter (S1) and the first receiver (E1) are parts of an assigned program and / or diagnostic unit (DE) which can be fixed in front of the protective cover. Optische Schnittstelle mit einem Mikro-Controller als zentrale Steuereinheit (MC) für die optoelektronische Kochstellensteuerung nach Anspruch 6 mit dem Merkmal: i) Der zweite Sender (S2) und der zweite Empfänger (E2) sind an einem externen seriellen Schnittstellenanschluß des Mikro-Controllers angeschlossen. Optical interface with a micro-controller as a central control unit (MC) for the optoelectronic hotplate control according to claim 6 with the feature: i) The second transmitter (S2) and the second receiver (E2) are connected to an external serial interface connection of the microcontroller.
EP97100681A 1996-01-30 1997-01-17 Optical interface for the diagnosis of optoelectronic cooking appliance control Withdrawn EP0788250A3 (en)

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DE1996103295 DE19603295A1 (en) 1996-01-30 1996-01-30 Optical interface, in particular for diagnosis of an optoelectronic hotplate control
DE19603295 1996-01-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2866512A1 (en) * 2004-02-12 2005-08-19 Jaeger Controls Electric cooking system e.g. baking oven, has memory with cooking program generator that determines change of cooking temperature according to time and parameters of product to be cooked for controlling power of cooking units

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19619927C2 (en) * 1996-05-17 1998-06-04 Siemens Ag Optical interface
DE10220723B4 (en) * 2002-05-10 2005-07-28 Diehl Ako Stiftung & Co. Kg Method for wireless data transmission

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3921344A1 (en) 1989-06-29 1991-01-10 Hengstler Gmbh External data programming unit - has magnetically latched cable coupling providing communication with programmable controller

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3243517A1 (en) * 1982-11-25 1984-05-30 Peter Prof.Dr. Russer Electro-optical receiving antenna
DE3717591A1 (en) * 1987-05-25 1988-12-08 Hartmann & Braun Ag CIRCUIT ARRANGEMENT FOR POTENTIAL-FREE DETECTION OF BINARY SIGNALS
FR2622754B1 (en) * 1987-10-29 1990-01-12 Alcatel Espace RADIO-OPTICAL TRANSMISSION SYSTEM, ESPECIALLY IN THE FIELD OF SPATIAL TELECOMMUNICATIONS
DE3909126C2 (en) * 1989-03-20 1998-06-04 Diehl Gmbh & Co Switchgear for a cooker
US5142397A (en) * 1990-01-04 1992-08-25 Dockery Devan T System for extending the effective operational range of an infrared remote control system
DE4019224A1 (en) * 1990-06-15 1991-12-19 Standard Elektrik Lorenz Ag RADIO NEWS TRANSMISSION SYSTEM, IN PARTICULAR CELLULAR MOBILE RADIO SYSTEM
US5315645A (en) * 1990-12-10 1994-05-24 Tek Electronics Manufacturing Corporation Communication apparatus utilizing digital optical signals
ES2048106B1 (en) * 1992-07-03 1995-06-16 Balay Sa SYSTEM FOR REMOTE CONTROL OF APPLIANCES.
FI109496B (en) * 1992-08-18 2002-08-15 Nokia Corp Apparatus and method for providing digital infrared communication between a base unit of a radiotelephone device and another device
US5383044B1 (en) * 1992-09-18 1998-09-01 Recoton Corp Systems methods and apparatus for transmitting radio frequency remote control signals
DE4310230C2 (en) * 1992-11-26 1997-09-11 Sel Alcatel Ag Portable subscriber terminal for mobile radio
JPH06216778A (en) * 1993-01-14 1994-08-05 Mitsubishi Electric Corp Demodulation circuit for communication control equipment
US5349162A (en) * 1993-04-05 1994-09-20 Whirlpool Corporation Fault detection method and apparatus for a domestic appliance
DE4433896C1 (en) * 1994-09-22 1995-11-09 Siemens Ag Reducing radio transmissions in pico-cellular wireless communications
DE9416779U1 (en) * 1994-10-18 1994-12-08 Bosch Siemens Hausgeraete Sensor-controlled glass ceramic hob unit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3921344A1 (en) 1989-06-29 1991-01-10 Hengstler Gmbh External data programming unit - has magnetically latched cable coupling providing communication with programmable controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2866512A1 (en) * 2004-02-12 2005-08-19 Jaeger Controls Electric cooking system e.g. baking oven, has memory with cooking program generator that determines change of cooking temperature according to time and parameters of product to be cooked for controlling power of cooking units

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DE19603295A1 (en) 1997-07-31
EP0788250A3 (en) 2001-11-07

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