EP2458945B1 - Transmission system for transmitting data telegrams over a load line - Google Patents

Transmission system for transmitting data telegrams over a load line Download PDF

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Publication number
EP2458945B1
EP2458945B1 EP11008291.4A EP11008291A EP2458945B1 EP 2458945 B1 EP2458945 B1 EP 2458945B1 EP 11008291 A EP11008291 A EP 11008291A EP 2458945 B1 EP2458945 B1 EP 2458945B1
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EP
European Patent Office
Prior art keywords
load line
current
load
short
control device
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EP11008291.4A
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German (de)
French (fr)
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EP2458945A2 (en
EP2458945A3 (en
Inventor
Dirk Goldyn
Frank Czimmeck
Gerhard Clever
Holger Linde
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ABB AG Germany
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ABB AG Germany
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10Controlling the light source
    • H05B47/175Controlling the light source by remote control
    • H05B47/185Controlling the light source by remote control via power line carrier transmission

Definitions

  • the invention relates to a transmission system for the transmission of data telegrams via a load line between a control device and at least one lamp, wherein the controller is connected on the other hand to the phase conductor of a supply voltage source and the at least one lamp on the other hand connected to the neutral conductor of the supply voltage source.
  • phase control or phase section In systems for brightness control of lamps, it is possible in addition to the transmission of the usual brightness information by means of phase control or phase section, in addition to transmit data digitally via the same load line.
  • phase control or phase section Such systems are used in installation technology for selecting the brightness or color temperature of lamps.
  • the transmission is based on an AC voltage phase cut or cut off by the control unit.
  • the data telegram to be transmitted is modulated, wherein either the amplitude and / or the bleed phase are keyed. Due to network disturbances, transmission errors can occur.
  • the invention has for its object to provide a robust transmission system for transmitting data telegrams via a load line, in which network disturbances can be detected and in which a disturbed transmission of data telegrams can be corrected in a simple manner.
  • the feedback control generates the short-term, pulse-like current increase synchronized to the zero crossing of the voltage of the load line.
  • the short-term, pulse-like current increase generated by the feedback control differs in the temporal behavior against a short circuit in the event of a fault, in the occurrence of the short-circuit safety shutdown, the control unit of the control unit in the sense of a shutdown influenced to prevent such that an unacceptably high current flow is generated by the power unit of the control unit.
  • the feedback control monitoring circuit checks the data stream of the data telegrams using well-known error detection methods.
  • the load line L ' is connected to the first terminal of the load 4, the feedback switch 5 and the feedback control 7, which receives the voltage of the load line L' as a synchronizing signal S (for synchronization to the zero crossing of the voltage).
  • the control unit 1 is connected with its further connection to the phase conductor L of a supply voltage source 9.
  • the second terminal of the lamp 3 is connected to the neutral conductor (neutral) N of the supply voltage source 9.
  • the feedback control 7 and the current measuring resistor 6 are connected to the feedback switch 5.
  • the feedback control 7 is located above a further connection at the common connection point of the feedback switch 5 and current measuring resistor 6.
  • the control of the feedback switch 5 is effected by corresponding, generated by the feedback control 7 drive signals A.
  • At least one further lamp 11 may be connected, which is designed similar to the lamp 3.
  • the control unit 1 comprises a power unit (preferably with at least one turn-off semiconductor switch), a control unit (preferably microprocessor) for controlling the power unit, an operating unit for influencing the control unit and a channel coder / modulator for generating data telegrams DT, which are transmitted via the load line L 'to at least one lamp 3. Furthermore, the control unit 1 has a short circuit safety shutdown, which monitors the load line L 'permanently for the possible occurrence of a short circuit. As soon as a detected short circuit exceeds a predetermined current value, the short-circuit safety shutdown influences the control unit so as to prevent a short-circuiting, unduly high short-circuit current from being generated by the power unit.
  • a short circuit safety shutdown which monitors the load line L 'permanently for the possible occurrence of a short circuit. As soon as a detected short circuit exceeds a predetermined current value, the short-circuit safety shutdown influences the control unit so as to prevent a short-circuiting, unduly high
  • phase angle is achieved by a delay of switching on the load (ignition delay) and at the zero crossing of the AC voltage (supply voltage) ends, ie at the end of the respective AC half-wave.
  • ignition delay a delay of switching on the load
  • supply voltage supply voltage
  • a voltage measuring element of the feedback control 7 detects the voltage drop across the current measuring resistor 6, from which the current flow via the current measuring resistor 6 can be derived. As soon as this current flow reaches a predetermined current value, the feedback switch 5 is opened again by means of the drive signal A.
  • the control unit 1 responds to this short-term, pulse-like current increase KI thus generated on the load line L 'by its integrated short-circuit safety shutdown. If a data telegram DT has been sent in a time frame T for data telegram repetition before the occurrence of the short-term pulse-like current increase, then the control unit 1 interprets this as an error case, ie. H. disturbed transmitted data telegram DT and then sends this data telegram DT again.
  • a data telegram DT1 is transmitted via the load line L '.
  • a network fault ST1 occurs on the load line L ', which falsifies the data telegram DT1 and thus makes it worthless.
  • the feedback control 7 detects this network fault ST1 and then generates a short-term, pulse-like current increase KI1 in the period between the times t5 and t6.
  • the short-circuit safety shutdown of the control unit 1 detects the short-term, pulse-like current increase KI1 and then checks all during a time window T1 for data telegram repetition between the times t1 and t5 sent data telegrams. Since the data telegram DT1 sent between the times t2 and t4 falls within this verified time window, it is sent again by the control unit 1 between the times t6 and t7 in the form of the data telegram DT2.
  • control unit 1 If several lamps 3, 11 Vietnamese connected in parallel, the control unit 1 is no longer able to identify the lamp associated with the disturbed data telegram. It is not possible to distinguish which of the lamps generated the occurring momentary, pulse-like current increase KI. However, this is in no way problematic, since the resent data telegrams quasi automatically always the right of the multiple lamps 3, 11 Vietnamese address.

Description

Die Erfindung betrifft ein Übertragungssystem zur Übertragung von Datentelegrammen über eine Lastleitung zwischen einem Steuergerät und mindestens einer Lampe, wobei das Steuergerät andererseits an den Phasenleiter einer Versorgungsspannungsquelle angeschlossen ist und die mindestens eine Lampe andererseits mit dem Neutralleiter der Versorgungsspannungsquelle verbunden ist.The invention relates to a transmission system for the transmission of data telegrams via a load line between a control device and at least one lamp, wherein the controller is connected on the other hand to the phase conductor of a supply voltage source and the at least one lamp on the other hand connected to the neutral conductor of the supply voltage source.

Bei Systemen zur Helligkeitssteuerung von Lampen ist es neben der Übertragung der üblichen Helligkeitsinformationen mittels Phasenanschnitt oder Phasenabschnitt möglich, zusätzlich Daten digital über dieselbe Lastleitung zu übertragen. Anwendung finden solche Systeme in der Installationstechnik zur Helligkeits- oder Farbtemperaturwahl von Lampen. Die Übertragung basiert auf einer durch das Steuergerät phasenan- oder abgeschnittenen Wechselspannung. Auf dieses Spannungssignal wird das zu übertragende Datentelegramm aufmoduliert, wobei entweder die Amplitude und/oder die Anschnittsphase umgetastet werden. Aufgrund von Netzstörungen kann es dabei zu Übertragungsfehlern kommen.In systems for brightness control of lamps, it is possible in addition to the transmission of the usual brightness information by means of phase control or phase section, in addition to transmit data digitally via the same load line. Such systems are used in installation technology for selecting the brightness or color temperature of lamps. The transmission is based on an AC voltage phase cut or cut off by the control unit. In this voltage signal, the data telegram to be transmitted is modulated, wherein either the amplitude and / or the bleed phase are keyed. Due to network disturbances, transmission errors can occur.

Der Erfindung liegt die Aufgabe zugrunde, ein robustes Übertragungssystem zur Übertragung von Datentelegrammen über eine Lastleitung anzugeben, bei welchem Netzstörungen erkannt werden können und bei welchem in einfacher Weise eine gestörte Übertragung von Datentelegrammen korrigiert werden kann.The invention has for its object to provide a robust transmission system for transmitting data telegrams via a load line, in which network disturbances can be detected and in which a disturbed transmission of data telegrams can be corrected in a simple manner.

Diese Aufgabe wird erfindungsgemäß gelöst durch ein Übertragungssystem zur Übertragung von Datentelegrammen über eine Lastleitung zwischen einem Steuergerät und mindestens einer Lampe, wobei das Steuergerät andererseits an den Phasenleiter einer Versorgungsspannungsquelle angeschlossen ist und die mindestens eine Lampe andererseits mit dem Neutralleiter der Versorgungsspannungsquelle verbunden ist,

  • wobei das Steuergerät ein Leistungsteil, eine Steuereinheit, eine Bedieneinheit, einen Kanalkodierer / Modulator zur Generierung von Datentelegrammen und eine Kurzschlusssicherheitsabschaltung umfasst,
  • wobei die Lampe eine bezüglich ihrer Leistung ansteuerbare Last, eine Rückkoppelungsregelung, einen Feedbackschalter und einen Strommesswiderstand umfasst,
  • wobei die Last einen Dekodierer zur Auswertung eines empfangenen Datentelegramms, eine Ansteuerschaltung, ein Leistungsglied und ein Leuchtmittel umfasst,
  • wobei eine Überwachungsschaltung der Rückkoppelungsregelung die Spannung der Lastleitung permanent auf das Auftreten von Netzstörungen überwacht,
  • wobei nach Detektion einer Netzstörung die Rückkoppelungsregelung den Feedbackschalter durchschaltet, wodurch sich ein die Last kurzschließender Stromfluss über den Strommesswiderstand und den Feedbackschalter einstellt, welcher eine kurzzeitige, impulsartige Stromerhöhung auf der Lastleitung verursacht und
  • wobei diese kurzzeitige, impulsartige Stromerhöhung von der Kurzschlusssicherheitsabschaltung des Steuergerätes erkannt wird, wodurch eine wiederholte Übertragung eines zuvor gestörten Datentelegramms initiiert wird.
This object is achieved by a transmission system for transmitting data telegrams via a load line between a controller and at least one lamp, wherein the controller is on the other hand connected to the phase conductor of a supply voltage source and the at least one lamp on the other hand connected to the neutral conductor of the supply voltage source,
  • wherein the control device comprises a power unit, a control unit, an operating unit, a channel coder / modulator for generating data telegrams and a short-circuit safety shutdown,
  • the lamp comprising a load-controllable load, a feedback control, a feedback switch and a current measuring resistor,
  • the load comprising a decoder for evaluating a received data telegram, a drive circuit, a power element and a luminous means,
  • wherein a monitoring circuit of the feedback control permanently monitors the voltage of the load line for the occurrence of network disturbances,
  • wherein after detection of a network failure, the feedback control switches through the feedback switch, whereby a load short-circuiting current flow via the current measuring resistor and the feedback switch adjusts, which causes a momentary, pulse-like increase in current on the load line and
  • wherein this momentary, pulse-like current increase is detected by the short circuit safety shutdown of the control unit, whereby a repeated transmission of a previously disturbed data telegram is initiated.

Vorteilhaft generiert die Rückkoppelungsregelung die kurzzeitige, impulsartige Stromerhöhung synchronisiert zum Nulldurchgang der Spannung der Lastleitung.Advantageously, the feedback control generates the short-term, pulse-like current increase synchronized to the zero crossing of the voltage of the load line.

Die von der Rückkoppelungsregelung generierte kurzzeitige, impulsartige Stromerhöhung unterscheidet sich im zeitlichen Verhalten gegenüber einem Kurzschluss im Fehlerfall, bei dessen Auftreten die Kurzschlusssicherheitsabschaltung die Steuereinheit des Steuergerätes im Sinne einer Abschaltung beeinflusst, um derart zu verhindern, dass ein unzulässig hoher Stromfluss mittels des Leistungsteils des Steuergerätes erzeugt wird.The short-term, pulse-like current increase generated by the feedback control differs in the temporal behavior against a short circuit in the event of a fault, in the occurrence of the short-circuit safety shutdown, the control unit of the control unit in the sense of a shutdown influenced to prevent such that an unacceptably high current flow is generated by the power unit of the control unit.

Vorzugsweise überprüft die Überwachungsschaltung der Rückkopplungsregelung den Datenstrom der Datentelegramme unter Verwendung allgemein bekannter Fehlererkennungsverfahren.Preferably, the feedback control monitoring circuit checks the data stream of the data telegrams using well-known error detection methods.

Die mit der Erfindung erzielbaren Vorteile liegen insbesondere darin, dass ein rückgekoppeltes Regelungssystem geschaffen wird, bei welchem die Last in der Lage ist, Netzstörungen während des Sendens eines Datentelegramms zu detektieren, um daraufhin das Steuergerät gezielt zu veranlassen, die während einer Netzstörung gesendeten Datentelegramme wiederholt zu übertragen. Eine aufwendige bidirektionale Kommunikation im eigentlichen Sinne ist hierzu nicht erforderlich.The achievable with the invention advantages are in particular that a feedback control system is provided, in which the load is able to detect network interference during transmission of a data telegram to then selectively cause the controller to repeat the sent during a network disturbance data telegrams transferred to. A complex bidirectional communication in the true sense is not required for this purpose.

Die Erfindung wird nachstehend an Hand der in der Zeichnung dargestellten Ausführungsbeispiele erläutert. Es zeigen:

Fig. 1
ein Prinzipschaltbild zur digitalen Datenübertragung zwischen einem Steuergerät respektive einem Dimmer und einer Lampe über eine Lastleitung,
Fig. 2
beispielhafte zeitliche Verläufe eines Datentelegramms, einer Netzstörung, einer kurzzeitigen, impulsartigen Stromerhöhung und eines Zeitfensters für Datentelegramm-Wiederholung.
The invention will be explained below with reference to the embodiments illustrated in the drawings. Show it:
Fig. 1
a block diagram for digital data transmission between a control unit or a dimmer and a lamp via a load line,
Fig. 2
exemplary temporal courses of a data telegram, a network fault, a short-term, pulse-like current increase and a time window for data telegram repetition.

In Fig. 1 ist ein Prinzipschaltbild zur digitalen Datenübertragung zwischen einem Steuergerät respektive einem Dimmer und einer Lampe über eine Lastleitung dargestellt. Es ist ein Steuergerät (Dimmer) 1 zu erkennen, welches über eine Lastleitung L' mit dem ersten Anschluss einer Lampe 3 verbunden ist. Die Lampe 3 umfasst

  • eine bezüglich ihrer Leistung ansteuerbare (dimmbare) Last 4 inklusive Netzteil, Dekodierer (insbesondere Mikrocontroller), Ansteuerschaltung (z. B. LED-Control), Leistungsglied (z. B. LED Driver) und Leuchtmittel, beispielsweise eine/mehrere LED(s),
  • eine Rückkoppelungsregelung 7 (Feedback Control),
  • einen Feedbackschalter 5,
  • einen seriell zum Feedbackschalter 5 angeordneten Strommesswiderstand 6.
In Fig. 1 is a schematic diagram for digital data transmission between a controller respectively a dimmer and a lamp via a load line shown. It can be seen a control device (dimmer) 1, which is connected via a load line L 'to the first terminal of a lamp 3. The lamp 3 includes
  • a (dimmable) load 4 controllable with respect to its power, including power supply unit, decoder (in particular microcontroller), drive circuit (eg LED control), power element (eg LED driver) and light source, for example one / several LED (s) .
  • a feedback control 7 (feedback control),
  • a feedback switch 5,
  • a current measuring resistor 6 arranged serially to the feedback switch 5.

Die Lastleitung L' ist mit dem ersten Anschluss der Last 4, dem Feedbackschalter 5 und der Rückkoppelungsregelung 7 verbunden, welche die Spannung der Lastleitung L' als Synchronisiersignal S empfängt (für die Synchronisierung auf den Nulldurchgang der Spannung). Das Steuergerät 1 ist mit seinem weiteren Anschluss mit dem Phasenleiter L einer Versorgungsspannungsquelle 9 verbunden. Der zweite Anschluss der Lampe 3 ist mit dem Neutralleiter (Nulleiter) N der Versorgungsspannungsquelle 9 verbunden. Mit dem zweiten Anschluss der Lampe 3 sind der zweite Anschluss der Last 4, die Rückkoppelungsregelung 7 und der Strommesswiderstand 6 verbunden. Der Strommesswiderstand 6 ist andererseits mit dem Feedbackschalter 5 verbunden. Die Rückkoppelungsregelung 7 liegt über einem weiteren Anschluss am gemeinsamen Verbindungspunkt von Feedbackschalter 5 und Strommesswiderstand 6. Die Ansteuerung des Feedbackschalters 5 erfolgt durch entsprechende, von der Rückkoppelungsregelung 7 erzeugte Ansteuersignale A.The load line L 'is connected to the first terminal of the load 4, the feedback switch 5 and the feedback control 7, which receives the voltage of the load line L' as a synchronizing signal S (for synchronization to the zero crossing of the voltage). The control unit 1 is connected with its further connection to the phase conductor L of a supply voltage source 9. The second terminal of the lamp 3 is connected to the neutral conductor (neutral) N of the supply voltage source 9. To the second terminal of the lamp 3, the second terminal of the load 4, the feedback control 7 and the current measuring resistor 6 are connected. On the other hand, the current measuring resistor 6 is connected to the feedback switch 5. The feedback control 7 is located above a further connection at the common connection point of the feedback switch 5 and current measuring resistor 6. The control of the feedback switch 5 is effected by corresponding, generated by the feedback control 7 drive signals A.

Zwischen der Lastleitung L' und dem Neutralleiter N kann mindestens eine weitere Lampe 11 angeschlossen sein, welche gleichartig zur Lampe 3 ausgebildet ist.Between the load line L 'and the neutral conductor N, at least one further lamp 11 may be connected, which is designed similar to the lamp 3.

Das Steuergerät 1 hat im Wesentlichen zwei Hauptaufgaben:

  • Dimmen der Last 4 durch Phasenanschnitt oder Phasenabschnitt der von der Versorgungsspannungsquelle 9 zur Verfügung gestellten Versorgungsspannung,
  • Übertragung zusätzlicher digitaler Informationen (Datentelegrammen) vom Steuergerät 1 zur Lampe 3, um damit gezielte zusätzliche Ansteuerungen der Lampe 3 vorzunehmen, beispielsweise einen einzustellenden Farbtemperaturwert des Leuchtmittels vorzugeben.
The control unit 1 has essentially two main tasks:
  • Dimming of the load 4 by phase control or phase section of the supply voltage provided by the supply voltage source 9,
  • Transmission of additional digital information (data telegrams) from the control unit 1 to the lamp 3 in order to make targeted additional activations of the lamp 3, for example, to specify a color temperature value of the luminous means to be set.

Das Steuergerät 1 umfasst ein Leistungsteil (vorzugsweise mit mindestens einem abschaltbaren Halbleiterschalter), eine Steuereinheit (vorzugsweise Mikroprozessor) zur Ansteuerung des Leistungsteils, eine Bedieneinheit zur Beeinflussung der Steuereinheit und einen Kanalkodierer / Modulator zur Generierung von Datentelegrammen DT, welche über die Lastleitung L' zur mindestens einen Lampe 3 übertragen werden. Des Weiteren weist das Steuergerät 1 eine Kurzschlusssicherheitsabschaltung auf, welche die Lastleitung L' permanent auf das eventuelle Auftreten eines Kurzschlusses überwacht. Sobald ein detektierter Kurzschluss eine vorgegebenen Stromwert überschreitet, beeinflusst die Kurzschlusssicherheitsabschaltung die Steuereinheit, um derart zu verhindern, dass ein den Kurzschluss speisender, unzulässig hoher Kurzschlussstrom mittels des Leistungsteils erzeugt wird.The control unit 1 comprises a power unit (preferably with at least one turn-off semiconductor switch), a control unit (preferably microprocessor) for controlling the power unit, an operating unit for influencing the control unit and a channel coder / modulator for generating data telegrams DT, which are transmitted via the load line L 'to at least one lamp 3. Furthermore, the control unit 1 has a short circuit safety shutdown, which monitors the load line L 'permanently for the possible occurrence of a short circuit. As soon as a detected short circuit exceeds a predetermined current value, the short-circuit safety shutdown influences the control unit so as to prevent a short-circuiting, unduly high short-circuit current from being generated by the power unit.

Dabei ist es z. B. aus der EP 618 667 B1 bekannt, dass ein Phasenanschnitt durch eine Verzögerung des Einschaltens der Last erreicht wird (Zündverzögerung) und beim Nulldurchgang der Wechselspannung (Versorgungsspannung) endet, also am Ende der jeweiligen Wechselstromhalbwelle. Beim Phasenabschnitt erfolgt keine Zündverzögerung, so dass die Schaltstrecke des steuernden Halbleiters schon bei Beginn der Halbwelle durchgeschaltet, aber noch vor ihrem Ende abgeschaltet ist. Um hohe Abschaltspannungen zu vermeiden, müssen induktive Lasten im Phasenanschnitt betrieben werden und um hohe Einschaltströme zu vermeiden, benutze man bei kapazitiven Lasten den Phasenabschnitt.It is z. B. from the EP 618 667 B1 known that a phase angle is achieved by a delay of switching on the load (ignition delay) and at the zero crossing of the AC voltage (supply voltage) ends, ie at the end of the respective AC half-wave. In the phase section there is no ignition delay, so that the switching path of the controlling semiconductor already switched at the beginning of the half-wave, but is switched off before its end. In order to avoid high switch-off voltages, inductive loads must be operated in phase control and to avoid high inrush currents, use the phase section for capacitive loads.

Wie vorstehend erwähnt, erfolgt die digitale Datenübertragung zwischen dem Steuergerät 1 und der Lampe 3 respektive den Lampen 3, 11 usw. in Form von über die Lastleitung L' übertragenen Datentelegrammen DT, wobei der Dekodierer der Last 4 die Ansteuerschaltung entsprechend der Information eines empfangenen Datentelegramms DT beaufschlagt, was eine entsprechende Ansteuerung des Leistungsglieds (z. B. LED Driver) und somit eine gewünschte Einstellung des Leuchtmittel zur Folge hat. Bei der digitalen Übertragung über die Lastleitung L' können unter Anderem drei unterschiedliche Typen von Netzstörungen ST auftreten, welche eine Deformierung des Informationsgehalts des Datentelegramms DT zur Folge haben, wodurch das übertragene Datentelegram fehlerhaft und damit wertlos wird:

  • Auftreten eines Burst-Impulses, beispielsweise durch einen induktiven Schaltvorgang hervorgerufen.
  • Auftreten eines Surge-Impulses, beispielsweise durch einen Schaltvorgang im Stromversorgungssystem hervorgerufen.
  • Spannungseinbruch.
As mentioned above, the digital data transmission between the control unit 1 and the lamp 3 and the lamps 3, 11, etc. in the form of the load line L 'transmitted data telegrams DT, the decoder of the load 4, the drive circuit according to the information of a received data telegram DT acts on what a corresponding control of the power element (eg LED Driver) and thus has a desired setting of the light source result. In the case of the digital transmission via the load line L ', inter alia, three different types of network disturbances ST can occur, which result in a deformation of the information content of the data telegram DT, as a result of which the transmitted data telegram becomes erroneous and thus worthless:
  • Occurrence of a burst pulse, for example caused by an inductive switching process.
  • Occurrence of a surge pulse, caused for example by a switching operation in the power supply system.
  • Voltage dip.

Diese Netzstörungen ST werden durch eine Überwachungsschaltung der Rückkopplungsregelung 7 unter Verwendung allgemein bekannter Fehlererkennungsverfahren erfasst, wobei die Spannung der Lastleitung L' permanent überwacht wird - siehe die anliegende Wechselspannung respektive das hieraus ableitbare Synchronisiersignal S. Sobald die Überwachungsschaltung eine Netzstörung ST oder ein fehlerhaftes Datentelegramm erkannt hat, generiert die Rückkoppelungsregelung 7 ein Ansteuersignal A, welches den Feedbackschalter 5 schließt, so dass sich ein Stromfluss von der Lastleitung L' über den geschlossenen Feedbackschalter 5 und den Strommesswiderstand 6 ergibt, welcher eine kurzzeitige, impulsartige Stromerhöhung KI auf der Lastleitung L' verursacht. Da der Rückkopplungsregelung 7 das Synchronisiersignal S vorliegt, ist es in einfacher Weise möglich, das Ansteuersignal A synchronisiert zum Wechselspannungsverlauf unter Berücksichtigung des Nulldurchganges der Spannung der Lastleitung L' auszubilden, so dass das Ansteuersignal A beispielsweise während eines kurzen Zeitabschnittes nach dem Nulldurchgang einer Spannungshalbwelle der Wechselspannung anliegt. Wie in Fig. 1 skizziert, erfasst ein Spannungsmessglied der Rückkopplungsregelung 7 den Spannungsabfall am Strommesswiderstand 6, woraus der Stromfluss über den Strommesswiderstand 6 ableitbar ist. Sobald dieser Stromfluss einen vorgegebenen Stromwert erreicht, wird der Feedbackschalter 5 mittels des Ansteuersignals A wieder geöffnet.These mains faults ST are detected by a monitoring circuit of the feedback control 7 using well-known fault detection method, the voltage of the load line L 'is permanently monitored - see the applied AC voltage respectively deriving therefrom synchronizing signal S. As soon as the monitoring circuit detected a network fault ST or a faulty data telegram has, the feedback control 7 generates a drive signal A, which closes the feedback switch 5, so that a current flow from the load line L 'on the closed feedback switch 5 and the current measuring resistor 6 results, which causes a momentary, pulse-like current increase KI on the load line L' , Since the feedback control 7, the synchronizing signal S is present, it is possible in a simple manner, the drive signal A synchronized to the AC waveform, taking into account the zero crossing of the voltage of the load line L 'form, so that the drive signal A, for example, during a short period of time after the zero crossing of a voltage half-wave AC voltage is applied. As in Fig. 1 sketched, a voltage measuring element of the feedback control 7 detects the voltage drop across the current measuring resistor 6, from which the current flow via the current measuring resistor 6 can be derived. As soon as this current flow reaches a predetermined current value, the feedback switch 5 is opened again by means of the drive signal A.

Das Steuergerät 1 reagiert auf diese derart generierte kurzzeitige, impulsartige Stromerhöhung KI auf der Lastleitung L' durch seine integrierte Kurzschlusssicherheitsabschaltung. Ist in einem Zeitfenster T für Datentelegramm-Wiederholung vor dem Auftreten der kurzzeitigen, impulsartigen Stromerhöhung ein Datentelegramm DT gesendet worden, so interpretiert dies das Steuergerät 1 als Fehlerfall, d. h. gestört übertragenes Datentelegramm DT und versendet dieses Datentelegramm DT anschließend erneut.The control unit 1 responds to this short-term, pulse-like current increase KI thus generated on the load line L 'by its integrated short-circuit safety shutdown. If a data telegram DT has been sent in a time frame T for data telegram repetition before the occurrence of the short-term pulse-like current increase, then the control unit 1 interprets this as an error case, ie. H. disturbed transmitted data telegram DT and then sends this data telegram DT again.

Durch diesen vorgeschlagenen Feedback-Kanal wird somit ein Rückkanal zwischen der mindestens einen Lampe 3 und dem Steuergerät 1 realisiert, wodurch auf sehr einfache Weise ein eingeschränkt bidirektionales Übertragungssystem geschaffen wird. Durch das kurzzeitige Kurzschließen der Last 4 wird das Steuergerät 1 über eine fehlerhafte Datenübertragung "NACK" respektive "Not Acknowledged" (nicht bestätigt / quittiert) informiert, wodurch die Datenübertragung vom Steuergerät 1 zur Lampe 3, 11 anschließend wiederholt werden kann.By this proposed feedback channel thus a return channel between the at least one lamp 3 and the control unit 1 is realized, whereby a restricted bidirectional transmission system is provided in a very simple manner. Due to the brief short-circuiting of the load 4, the control unit 1 via a faulty data transfer "NACK" respectively "Not Acknowledged" (not confirmed / acknowledged), whereby the data transmission from the control unit 1 to the lamp 3, 11 can be subsequently repeated.

In Fig. 2 sind hierzu zusammenfassend die beispielhaften zeitlichen Verläufe eines Datentelegramms DT, einer Netzstörung ST, einer kurzzeitigen, impulsartigen Stromerhöhung KI und eines Zeitfensters T für Datentelegramm-Wiederholung dargestellt. Im Zeitraum zwischen den Zeitpunkten t2 und t4 wird ein Datentelegramm DT1 über die Lastleitung L' übertragen. Im Zeitraum zwischen den Zeitpunkten t3 und t5 tritt eine Netzstörung ST1 auf der Lastleitung L' auf, welche das Datentelegramm DT1 verfälscht und damit wertlos macht. Die Rückkoppelungsregelung 7 detektiert diese Netzstörung ST1 und generiert daraufhin eine kurzzeitige, impulsartige Stromerhöhung KI1 im Zeitraum zwischen den Zeitpunkten t5 und t6. Die Kurzschlusssicherheitsabschaltung des Steuergerätes 1 detektiert die kurzzeitige, impulsartige Stromerhöhung KI1 und überprüft daraufhin alle während eines Zeitfensters T1 für Datentelegramm-Wiederholung zwischen den Zeitpunkten t1 und t5 abgesendeten Datentelegramme. Da das zwischen den Zeitpunkten t2 und t4 abgesendete Datentelegramm DT1 in dieses überprüfte Zeitfenster fällt, wird es zwischen den Zeitpunkten t6 und t7 in Form des Datentelegramms DT2 erneut vom Steuergerät 1 gesendet.In Fig. 2 For this purpose, the exemplary temporal courses of a data telegram DT, a network disturbance ST, a short-term pulse-like current increase KI and a time window T for data telegram repetition are summarized. In the period between the times t2 and t4, a data telegram DT1 is transmitted via the load line L '. In the period between the times t3 and t5, a network fault ST1 occurs on the load line L ', which falsifies the data telegram DT1 and thus makes it worthless. The feedback control 7 detects this network fault ST1 and then generates a short-term, pulse-like current increase KI1 in the period between the times t5 and t6. The short-circuit safety shutdown of the control unit 1 detects the short-term, pulse-like current increase KI1 and then checks all during a time window T1 for data telegram repetition between the times t1 and t5 sent data telegrams. Since the data telegram DT1 sent between the times t2 and t4 falls within this verified time window, it is sent again by the control unit 1 between the times t6 and t7 in the form of the data telegram DT2.

Sind mehrere Lampen 3, 11..... parallel geschaltet, so ist das Steuergerät 1 nicht mehr in der Lage, die dem gestörten Datentelegramm zugeordnete Lampe zu identifizieren. Eine Unterscheidung, welche der Lampen die auftretende kurzzeitige, impulsartige Stromerhöhung KI generiert hat, ist nicht möglich. Dies ist jedoch in keiner Weise problematisch, da die erneut gesendeten Datentelegramme quasi automatisch immer die richtige der mehreren Lampen 3, 11..... ansprechen.If several lamps 3, 11 ..... connected in parallel, the control unit 1 is no longer able to identify the lamp associated with the disturbed data telegram. It is not possible to distinguish which of the lamps generated the occurring momentary, pulse-like current increase KI. However, this is in no way problematic, since the resent data telegrams quasi automatically always the right of the multiple lamps 3, 11 ..... address.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Steuergerät (Dimmer) inklusive KurzschlusssicherheitsabschaltungControl unit (dimmer) including short-circuit safety shutdown
22
--
33
Lampelamp
44
Last inklusive LeuchtmittelLoad including bulbs
55
FeedbackschalterFeedback switch
66
StrommesswiderstandCurrent sense resistor
77
Rückkoppelungsregelung (Feedback Control)Feedback Control
88th
--
99
VersorgungsspannungsquelleSupply voltage source
1010
--
1111
weitere Lampeanother lamp
AA
Ansteuersignalcontrol signal
DTDT
DatentelegrammData telegram
LL
Phasenleiter der VersorgungsspannungsquellePhase conductor of the supply voltage source
L'L '
Lastleitungload line
KIKI
kurzzeitige, impulsartige Stromerhöhungshort-term, pulse-like current increase
NN
Neutralleiter (Nulleiter) der VersorgungsspannungsquelleNeutral conductor (neutral conductor) of the supply voltage source
SS
Wechselspannung respektive SynchronisiersignalAC voltage or synchronizing signal
STST
NetzstörungLine failure
TT
Zeitfenster für Datentelegramm-WiederholungTime window for data telegram repetition
tt
Zeit, ZeitpunktTime, time

Claims (4)

  1. Transmission system for transmitting data messages (DT) via a load line (L') between a control device (1) and at least one lamp (3, 11), the control device (1) being connected, on the other side, to the phase conductor (L) of a supply voltage source (9) and the at least one lamp (3, 11) being connected, on the other side, to the neutral conductor (N) of the supply voltage source (9),
    • the control device (1) comprising a power section, a control unit, an operating unit, a channel coder/modulator for generating data messages (DT) and a short-circuit safety shutdown,
    • the lamp (3, 11) comprising a load (4), the power of which can be controlled, a feedback controller (7), a feedback switch (5) and a current measurement resistor (6),
    • the load (4) comprising a decoder for evaluating a received data message (DT), a drive circuit, a power element and a luminous means,
    • a monitoring circuit of the feedback controller (7) permanently monitoring the voltage of the load line (L') for the occurrence of mains interference (ST),
    characterized by
    • the feedback controller (7) connecting the feedback switch (5) after mains interference has been detected, as a result of which a flow of current which short-circuits the load (4) is established via the current measurement resistor (6) and the feedback switch (5) and causes a brief pulse-like current increase (KI) on the load line (L'), and
    • this brief pulse-like current increase (KI) being detected by the short-circuit safety shutdown of the control device (1), thus initiating repeated transmission of a data message (DT) which previously had interference.
  2. Transmission system according to Claim 1, characterized in that the feedback controller (7) generates the brief pulse-like current increase in a manner synchronized with the zero crossing of the voltage of the load line (L').
  3. Transmission system according to Claim 1, characterized in that the brief pulse-like current increase (KI) generated by the feedback controller (7) is smaller than a predefined current value, upon the exceeding of which the short-circuit safety shutdown influences the control unit of the control device (1) in order to prevent an impermissibly high flow of current being generated by means of the power section of the control device (1).
  4. Transmission system according to Claim 1, characterized in that the monitoring circuit of the feedback controller (7) checks the data stream of the data messages (DT) using generally known error detection methods.
EP11008291.4A 2010-11-26 2011-10-14 Transmission system for transmitting data telegrams over a load line Not-in-force EP2458945B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010052663.0A DE102010052663B4 (en) 2010-11-26 2010-11-26 Transmission system for the transmission of data telegrams via a load line

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EP2458945A2 EP2458945A2 (en) 2012-05-30
EP2458945A3 EP2458945A3 (en) 2016-12-28
EP2458945B1 true EP2458945B1 (en) 2017-12-06

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CN (1) CN102592432B (en)
DE (1) DE102010052663B4 (en)
ES (1) ES2661968T3 (en)
RU (1) RU2570823C2 (en)

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CN103883550B (en) * 2014-03-21 2016-04-27 佛山市顺德区和而泰电子科技有限公司 A kind of method by power line control apparatus and wire controller
CN112180135B (en) * 2020-10-26 2023-11-07 杭州海兴电力科技股份有限公司 Zero line interference prevention electric energy meter adjustment method and electric energy meter thereof

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Publication number Priority date Publication date Assignee Title
DE4310723A1 (en) * 1993-04-01 1994-10-06 Abb Patent Gmbh Method for controlling the alternating current in a load circuit and device for carrying out the method
JPH11144880A (en) * 1997-11-06 1999-05-28 Toshiba Corp Airport lamp control system
JP3556145B2 (en) * 2000-02-18 2004-08-18 大崎電気工業株式会社 Power line data transmission system
AT407809B (en) * 2000-03-13 2001-06-25 Hierzer Andreas System for controlling a plurality of loads connected to a common electrical AC voltage supply line
EP1271799A1 (en) * 2001-06-28 2003-01-02 "VLAAMSE INSTELLING VOOR TECHNOLOGISCH ONDERZOEK", afgekort "V.I.T.O." Method and devices for controlling loads on an electrical power supply
FR2865871B1 (en) * 2004-01-29 2006-06-30 Augier S A SYSTEM AND METHOD FOR POWER CURRENT COMMUNICATION IN A LIGHTING NETWORK
FR2871890B1 (en) * 2004-06-21 2006-10-13 Watteco Soc Par Actions Simpli METHOD AND DEVICE FOR TRANSMITTING PULSES ON AN ELECTRICITY DISTRIBUTION NETWORK
ES2277665T3 (en) * 2004-09-27 2007-07-16 Bft Spa COMMUNICATION AND DOMOTIC INSTALLATION PROCESS FOR IMPLEMENTATION.
DE102005001767A1 (en) * 2005-01-13 2006-07-20 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Device for controlled switching of a lamp, use of the device and corresponding operating method
CN101009502A (en) * 2006-01-24 2007-08-01 黄勇 A DC power line carrier communication method, system and lamp series using the system
DE102007004397B4 (en) * 2007-01-29 2019-06-13 Tridonic Gmbh & Co Kg Method and system for data transmission
US7872429B2 (en) * 2007-04-23 2011-01-18 Lutron Electronics Co., Inc. Multiple location load control system

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RU2570823C2 (en) 2015-12-10
CN102592432B (en) 2015-11-25
EP2458945A2 (en) 2012-05-30
EP2458945A3 (en) 2016-12-28
CN102592432A (en) 2012-07-18
RU2011148179A (en) 2013-05-27
ES2661968T3 (en) 2018-04-04
DE102010052663A1 (en) 2012-05-31
DE102010052663B4 (en) 2016-03-10

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