EP2434207B1 - Lighting assembly with an energy supply device, control device for a lighting assembly and method for controlling same - Google Patents

Lighting assembly with an energy supply device, control device for a lighting assembly and method for controlling same Download PDF

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Publication number
EP2434207B1
EP2434207B1 EP11181662.5A EP11181662A EP2434207B1 EP 2434207 B1 EP2434207 B1 EP 2434207B1 EP 11181662 A EP11181662 A EP 11181662A EP 2434207 B1 EP2434207 B1 EP 2434207B1
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EP
European Patent Office
Prior art keywords
unit
lighting
lighting means
energy
direct current
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EP11181662.5A
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German (de)
French (fr)
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EP2434207A1 (en
EP2434207B8 (en
Inventor
Dirk Beiner
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Osram GmbH
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Traxon Technologies Europe GmbH
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    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • F21S9/03—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a lighting system with a power supply device, a control device for a lighting system and a method for controlling a lighting system.
  • Renewable energies such as in particular solar energy are increasingly being used to supply energy.
  • photovoltaic systems which are used in particular in private households, a direct current is generated in solar cells, which is fed into an energy storage such as an accumulator.
  • the stored energy in the accumulator is usually converted by means of an inverter in a standard for domestic power AC voltage, such as a 230 volts AC voltage to connect to it commercially available bulbs and other electrical consumers can.
  • the control of the photovoltaic system and the lighting system takes place independently of each other.
  • the publication WO 2010/057138 A2 describes a solar powered LED outdoor light, in which no Conversion of the generated direct current into alternating current takes place.
  • the described outdoor LED light is a luminaire with a flexible solar panel.
  • the invention relates to a method for operating a lighting installation, in which a control device is suitable for receiving data from the Internet, for example weather data.
  • the invention has for its object to provide a lighting system with a power supply device, which is characterized by improved efficiency, a resulting lower energy consumption and predictive energy management. Furthermore, a suitable control of the lighting system control device and an advantageous method for controlling the lighting system should be specified.
  • the lighting system does not include any device for converting an alternating current into a direct current, which would be required, for example, if you wanted to operate with a direct current operable light source with the usual AC voltage of a domestic power supply.
  • the lighting system does not use any devices to convert a direct current into an alternating current or an alternating current into a direct current avoids the losses otherwise occurring during the transformations. In this way, the efficiency of the lighting system is increased and the energy consumption is reduced.
  • the lighting means of the lighting unit may in particular comprise one or more LED light sources.
  • the LED light sources may be individual LEDs or LED arrays such as LED arrays.
  • the LED light sources may also contain flat LED bulbs, which are in particular organic LEDs (OLEDs).
  • the power generation unit of the power supply device may in particular be a photovoltaic system.
  • the photovoltaic system may include a plurality of solar cells that generate a direct current that is fed into an energy storage unit.
  • the energy storage unit of the energy supply device may in particular be an accumulator.
  • the accumulator serves as a buffer for the energy preferably generated by means of a photovoltaic system.
  • the power supply device and the lighting unit have a common control device.
  • the control of the power supply device, in particular a photovoltaic system, and the control of the lighting unit are thus advantageously integrated into a single device and / or done correlated with each other.
  • the control device is preferably connected to the energy supply device by means of a data line suitable for bidirectional data transmission.
  • the controller may receive data from the power supply device about the incoming and / or stored energy.
  • the control device is particularly suitable for controlling the lighting means in dependence on the data of the incoming and / or stored energy. For example, the control device can reduce the intensity and / or the number of operated bulbs at low values of the stored energy and / or the incoming energy in order to maintain a predetermined minimum illuminance for a planned lighting purpose in as long a period as possible.
  • the energy generated in the energy generating unit depends on the intensity of the incident sunlight
  • the data of the incoming energy determined by the control unit can be used for the incoming energy Control of the lighting unit depending on the daylight brightness can be used.
  • the power generation unit advantageously simultaneously functions as a brightness sensor for controlling the lighting unit.
  • the control device can take into account a prognosis for the energy arriving in a foreseeable period of time.
  • the forecast can be based in particular on a weather forecast.
  • the control device is connected to a weather station and / or set up to receive weather data via the Internet.
  • the control device is further preferably configured to control the power generation unit, in particular a photovoltaic system.
  • the control device can be set up to align a photovoltaic system in accordance with the position of the sun in order to use the incident sunlight particularly efficiently for energy generation.
  • the control device is advantageously connected to a further data line suitable for data transmission with the lighting unit.
  • the data line is suitable for bidirectional data transmission.
  • the signals transmitted by the control device to the lighting unit comprise, in particular, the information which is to be operated with which intensity of the lighting means.
  • the control device may preferably receive data on the operating state of the lighting means from the lighting unit, for example the operating temperature and / or the instantaneous energy consumption of the lighting means.
  • the lighting unit may further comprise one or more sensors to measure, for example, the intensity of incident in a room to be illuminated daylight.
  • the control device can advantageously control the lighting means as a function of this data such that a desired illumination intensity is achieved in the room to be illuminated.
  • the control device can change the color temperature in the white light emitting lamp unit, in which the generation of white light based on additive color mixing of colored LEDs, to achieve a predetermined luminosity with less energy consumption.
  • the control device can preferably realize as much as possible a lighting situation predefined by the user by utilizing the available energy stores.
  • the control device for a lighting system described herein is configured to control a lighting unit that includes a plurality of lamps that can be operated with direct current, and to control a power supply device that is set up to supply the lighting unit with a direct current.
  • control device preferably has at least one interface for transmitting data to the illuminant unit and advantageously also for receiving data from the illuminant unit. Furthermore, the control device has a further interface for sending data to the power supply device and advantageously also for receiving data from the power supply device on.
  • the control device is advantageously set up to receive weather data from a weather station and / or the Internet.
  • the control device is further adapted to change the color temperature of the white light emitting lamp unit by additive color mixing of individual light sources.
  • the power supply device and the lighting unit of the lighting system are controlled by a common control device.
  • the energy generating unit of the energy supply device may in particular be a photovoltaic system, the photovoltaic system being aligned by means of the control device as a function of the position of the sun.
  • the photovoltaic system has, for example, a motor system for aligning the solar cells according to the angle of incidence of the sunlight. Data on the angle of incidence of the sunlight as a function of date and time are advantageously stored in the control device.
  • an energy stored in the energy storage unit of the energy supply device is furthermore advantageously determined by the control device and the lighting unit controlled in dependence on the stored energy.
  • the control device can switch off individual lighting means of the lighting unit and / or reduce their intensity if the energy stored in the energy storage unit falls below a setpoint value.
  • the lighting unit is controlled by the control device in response to weather data received from the Internet and / or from a weather station.
  • the bulbs can be operated in a power-saving mode, if it is foreseeable on the basis of the weather forecast that the incoming energy in a foreseeable period of time is low.
  • the control device can not only use the current status of the energy store, but also a forecast for the future expected energy input in the power generation unit for controlling the lighting unit.
  • the lighting system is characterized by a forward-looking energy management.
  • the color temperature of the white-light emitting lamp unit in which the generation of white light is based on additive color mixing of colored LEDs, is changed by the control device so that a predetermined luminous intensity is achieved with lower energy consumption.
  • the control device can preferably realize as much as possible a lighting situation predefined by the user by utilizing the available energy stores.
  • FIG. 1 shows a lighting system with a power supply device according to an embodiment of the invention.
  • the lighting unit 3 includes a plurality of lighting means 31 which are operable with a direct current.
  • the lighting means 31 are LED light sources, each having one or more LEDs 32.
  • the lighting means 31 may comprise, for example, white light emitting LEDs 32.
  • the lighting means 31 may have colored or differently colored LEDs 32 which, for example, enable a multiplicity of illumination colors by means of additive color mixing.
  • the lighting means 31 may also be organic LEDs, which may be configured in particular as a flat light source.
  • the lighting unit 3 may in particular also contain different types of lamps 31 which can be operated with a direct current.
  • the lighting unit 3 is connected to a power supply device 2 for power supply.
  • the power supply device 2 includes a power generation unit 21 and an energy storage unit 22.
  • the power generation unit 21 is suitable for generating a direct current, wherein the power generation is advantageously based on the use of a regenerative energy.
  • the power generation unit 21 may be a photovoltaic system.
  • the energy supply device 2 further comprises an energy storage unit 22, which may in particular be an accumulator.
  • the direct current generated by means of the energy generating unit 21 is fed into the energy storage unit 22 and stored there temporarily.
  • the energy storage unit 22 acts as a DC power source for the illuminant unit 3.
  • the illuminant unit 3 is preferably connected directly to the energy storage unit 22 of the energy supply device 2 by means of at least one power line 23 through which a direct current flows.
  • This means that the energy stored in the energy storage unit 22 is not converted into a mains AC voltage of, for example, 230 volts as conventionally, but the lighting unit 3 is connected directly to the energy storage unit 22 functioning as a direct current source. In this way, losses that occur when converting a direct current into an alternating current are avoided.
  • the lighting unit 3 is not necessary to equip the lighting unit 3 with a power supply unit for converting an alternating current into a direct current, as is required in the operation of LED light sources 31 with a mains voltage in the rule. Since in the lighting system 1 conversions of a direct current into an alternating current and vice versa are avoided, the lighting system 1 is characterized by improved efficiency and thus low energy consumption.
  • the lighting system 1 furthermore has a control device 4, which controls both the power supply device 2 and the lighting unit 3.
  • the control of the power supply device 2 and the lighting unit 3 is not independent of each other, but is advantageously coordinated by the common control device 4 by utilizing data which the control device 4 receives from the power supply device 2 and the lighting unit 3.
  • the control device 3 is advantageously connected to the energy supply device 2 by means of a bidirectional data line 42.
  • the control device 4 can by In particular, the power supply device 2 receives data about the energy stored in the energy storage unit 22 and the energy currently generated by means of the energy generation unit 21.
  • the control device 4 is furthermore connected to the illuminating unit 3 with a preferably bidirectional data line 43.
  • the control device 4 can in particular send control signals to the illuminant unit 3 via the data line 43 in order to generate a desired lighting situation by means of the luminous means 31.
  • the control device 4 can take into account the state of charge of the energy storage unit 22 when controlling the lighting unit 3. For example, at a low charge state in the energy storage unit 22, the lighting unit 3 can be automatically operated in a power-saving mode. For example, it is possible for individual LEDs 32 of the lighting means 31 to be switched off to save energy, and / or for the lighting means 31 to be operated at a lower power.
  • the control device 4 not only takes into account the current state of charge of the energy storage unit 22, but also a prognosis for the energy which can be generated in the energy generation unit 21 in a foreseeable period of time.
  • the control device 4 is advantageous by means of a data line 45 connected to a weather station 5.
  • the control device 4 may be connected to the Internet 6 by means of a data line 46 in order in particular to receive data on the position of the sun or prognoses for the weather development.
  • the control device 4 can use the data received from the weather station 5 and / or from the Internet 6, for example, to reduce the power consumption of the lighting means 31, if due to an expected low solar radiation with a low power generation in the power generation unit 21 is to be expected.
  • the control device 4 is preferably configured to align the photovoltaic system as a function of the position of the sun.
  • the control device 4 can utilize stored data and / or the data received from the weather station 5 and / or from the Internet 6.
  • the solar cells contained in the photovoltaic system 21 can be aligned, for example, by means of a suitable motor technology such that they absorb the incident sunlight as best as possible. Since photovoltaic systems have an optimum operating point at a certain temperature, it is also conceivable to use the waste heat of the lighting unit 3 on cold days for heating and thus an increase in the efficiency of the photovoltaic system.
  • the control device 4 receives operating data from the light-emitting means 31 via the bidirectional data connection 43 and utilizes it for its control.
  • the control device 4 the data on the energy consumption of the individual lamps 31 received.
  • the illuminant unit 3 it is possible for the illuminant unit 3 to comprise one or more sensors which measure, for example, the operating temperature of the LEDs 32 and / or the ambient brightness. If the illuminant unit 3 contains, for example, an ambient light sensor, the control device 4 can adapt the power of the luminous means 31 to the ambient brightness, in particular to a varying incidence of daylight. In particular, the control device 4 can be set up to realize as much as possible a lighting situation predefined by a user by utilizing the available energy stores. In the case of a white-light emitting luminous unit 3 in which the generation of white light is based on additive color mixing of colored LEDs, it is optionally possible to change the color temperature in order to achieve a given luminous intensity with lower energy consumption.

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  • Circuit Arrangement For Electric Light Sources In General (AREA)

Description

Die Erfindung betrifft eine Beleuchtungsanlage mit einer Energieversorgungsvorrichtung, eine Steuervorrichtung für eine Beleuchtungsanlage und ein Verfahren zur Steuerung einer Beleuchtungsanlage.The invention relates to a lighting system with a power supply device, a control device for a lighting system and a method for controlling a lighting system.

Diese Patentanmeldung beansprucht die Priorität der deutschen Patentanmeldung 10 2010 046 299.3 , deren Offenbarungsgehalt hiermit durch Rückbezug aufgenommen wird.This patent application claims the priority of the German patent application 10 2010 046 299.3 , the disclosure of which is hereby incorporated by reference.

Zur Energieversorgung werden zunehmend regenerative Energien wie insbesondere Sonnenenergie eingesetzt. In Photovoltaikanlagen, die insbesondere auch in privaten Haushalten eingesetzt werden, wird in Solarzellen ein Gleichstrom erzeugt, der in einen Energiespeicher wie beispielsweise einen Akkumulator eingespeist wird. Die in dem Akkumulator gespeicherte Energie wird in der Regel mittels eines Wechselrichters in eine für die häusliche Stromversorgung übliche Wechselspannung, beispielsweise eine 230 Volt Wechselspannung, umgewandelt, um daran handelsübliche Leuchtmittel und andere elektrische Verbraucher anschließen zu können. Die Steuerung der Photovoltaikanlage und der Beleuchtungsanlage erfolgt dabei unabhängig voneinander.Renewable energies such as in particular solar energy are increasingly being used to supply energy. In photovoltaic systems, which are used in particular in private households, a direct current is generated in solar cells, which is fed into an energy storage such as an accumulator. The stored energy in the accumulator is usually converted by means of an inverter in a standard for domestic power AC voltage, such as a 230 volts AC voltage to connect to it commercially available bulbs and other electrical consumers can. The control of the photovoltaic system and the lighting system takes place independently of each other.

Die Druckschrift WO 2010/057138 A2 beschreibt eine mit Solarstrom betriebene LED-Außenleuchte, bei der keine Umwandlung des erzeugten Gleichstroms in Wechselstrom erfolgt. Bei der beschriebenen LED-Außenleuchte handelt es sich um eine Leuchte mit einem flexiblen Solarpanel. Es wird ein Verfahren zum Betreiben einer Beleuchtungsanlage angegeben, bei dem eine Steuervorrichtung zum Empfang von Daten aus dem Internet, beispielsweise Wetterdaten, geeignet ist.The publication WO 2010/057138 A2 describes a solar powered LED outdoor light, in which no Conversion of the generated direct current into alternating current takes place. The described outdoor LED light is a luminaire with a flexible solar panel. The invention relates to a method for operating a lighting installation, in which a control device is suitable for receiving data from the Internet, for example weather data.

Der Erfindung liegt die Aufgabe zugrunde, eine Beleuchtungsanlage mit einer Energieversorgungsvorrichtung anzugeben, die sich durch eine verbesserte Effizienz, einen daraus resultierenden geringeren Energieverbrauch und ein vorausschauendes Energiemanagement auszeichnet. Weiterhin sollen eine zur Steuerung der Beleuchtungsanlage geeignete Steuervorrichtung und ein vorteilhaftes Verfahren zur Steuerung der Beleuchtungsanlage angegeben werden.The invention has for its object to provide a lighting system with a power supply device, which is characterized by improved efficiency, a resulting lower energy consumption and predictive energy management. Furthermore, a suitable control of the lighting system control device and an advantageous method for controlling the lighting system should be specified.

Diese Aufgaben werden durch eine Beleuchtungsanlage mit einer Energieversorgungsvorrichtung, eine Steuervorrichtung für eine Beleuchtungsanlage und ein Verfahren zur Steuerung der Beleuchtungsanlage gemäß den unabhängigen Patentansprüchen gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung sind Gegenstand der abhängigen Ansprüche.These objects are achieved by a lighting system with a power supply device, a control device for a lighting system and a method for controlling the lighting system according to the independent patent claims. Advantageous embodiments and modifications of the invention are the subject of the dependent claims.

Gemäß einer Ausgestaltung umfasst die Beleuchtungsanlage eine Energieversorgungsvorrichtung, die eine zur Erzeugung eines Gleichstroms geeignete Energieerzeugungseinheit und eine Energiespeichereinheit zur Speicherung von Energie der Energieerzeugungseinheit aufweist. Weiterhin umfasst die Beleuchtungsanlage eine Leuchtmitteleinheit, die Weißlicht emittiert und mehrere mit einem Gleichstrom betreibbare Leuchtmittel umfasst und zur Versorgung mit einem Gleichstrom an die Energiespeichereinheit angeschlossen ist. Zwischen der Energieerzeugungseinheit und den Leuchtmitteln ist keine Vorrichtung zur Umwandlung eines Gleichstroms in einen Wechselstrom oder eines Wechselstroms in einen Gleichstrom angeordnet, wobei die Energieversorgungsvorrichtung und die Leuchtmitteleinheit eine gemeinsame Steuervorrichtung aufweisen, die an eine Wetterstation angeschlossen ist und/oder zum Empfang von Wetterdaten über das Internet eingerichtet ist, und die Steuervorrichtung dazu eingerichtet ist, die Leuchtmitteleinheit in Abhängigkeit von einer Prognose für den zukünftig zu erwartenden Energieeingang in der Energieerzeugungseinheit zu steuern,
dadurch gekennzeichnet, dass

  • die Leuchtmittel farbige LEDs sind,
  • die Erzeugung von Weißlicht durch additive Farbmischung der farbigen LEDs erzielt wird,
  • die Steuervorrichtung dazu eingerichtet ist, eine Farbtemperatur der Weißlicht emittierenden Leuchtmitteleinheit so zu verändern, dass eine vorgegebene Leuchtstärke bei geringerem Energieverbrauch erreicht wird.
Dadurch, dass in der Leuchtmitteleinheit der Beleuchtungsanlage mit einem Gleichstrom betreibbare Leuchtmittel eingesetzt werden, können diese direkt an die Energiespeichereinheit der zur Erzeugung eines Gleichstroms geeigneten Energieversorgungsvorrichtung angeschlossen werden, wobei insbesondere keine Vorrichtung zur Umwandlung eines Gleichstroms in einen Wechselstrom zwischen der Energieerzeugungseinheit und den Leuchtmitteln angeordnet ist.According to one embodiment, the lighting system comprises a power supply device, which has a suitable for generating a direct current power generation unit and an energy storage unit for storing energy of the power generation unit. Furthermore, the lighting system comprises a lighting unit which emits white light and comprises a plurality of lamps which can be operated with a direct current, and for the supply of a direct current connected to the energy storage unit. No device for converting a direct current into an alternating current or an alternating current into a direct current is disposed between the power generation unit and the lighting means, wherein the power supply device and the lighting unit have a common control device which is connected to a weather station and / or for receiving weather data over the Internet is set up, and the control device is adapted to control the lighting unit depending on a forecast for the future expected energy input in the power generation unit,
characterized in that
  • the bulbs are colored LEDs,
  • the generation of white light is achieved by additive color mixing of the colored LEDs,
  • the control device is set up to change a color temperature of the white-light-emitting luminous means so that a predetermined luminous intensity is achieved with lower energy consumption.
Characterized in that are used in the lighting unit of the lighting system with a direct current operated bulbs, they can be connected directly to the energy storage unit suitable for generating a DC power supply device, in particular arranged no device for converting a direct current into an alternating current between the power generation unit and the lighting means is.

Weiterhin umfasst die Beleuchtungsanlage auch keine Vorrichtung zur Umwandlung eines Wechselstroms in einen Gleichstrom, die beispielsweise erforderlich wäre, wenn man mit einem Gleichstrom betreibbare Leuchtmittel mit der üblichen Wechselspannung einer häuslichen Stromversorgung betreiben wollte. Insbesondere kann auf Netzteile zwischen der Energieerzeugungseinheit und den Leuchtmitteln verzichtet werden.Furthermore, the lighting system does not include any device for converting an alternating current into a direct current, which would be required, for example, if you wanted to operate with a direct current operable light source with the usual AC voltage of a domestic power supply. In particular, it is possible to dispense with power supply units between the power generation unit and the lighting means.

Dadurch, dass bei der Beleuchtungsanlage keine Vorrichtungen zur Umwandlung eines Gleichstroms in einen Wechselstrom oder eines Wechselstroms in einen Gleichstrom verwendet werden, werden die ansonsten bei den Umwandlungen auftretenden Verluste vermieden. Auf diese Weise wird die Effizienz der Beleuchtungsanlage erhöht und der Energieverbrauch vermindert.The fact that the lighting system does not use any devices to convert a direct current into an alternating current or an alternating current into a direct current avoids the losses otherwise occurring during the transformations. In this way, the efficiency of the lighting system is increased and the energy consumption is reduced.

Die Leuchtmittel der Beleuchtungseinheit können insbesondere eine oder mehrere LED-Lichtquellen umfassen. Bei den LED-Lichtquellen kann es sich um einzelne LEDs oder LED-Anordnungen wie beispielsweise LED-Arrays handeln. Die LED-Lichtquellen können auch flächige LED-Leuchtmittel enthalten, bei denen es sich insbesondere um organische LEDs (OLEDs) handelt.The lighting means of the lighting unit may in particular comprise one or more LED light sources. The LED light sources may be individual LEDs or LED arrays such as LED arrays. The LED light sources may also contain flat LED bulbs, which are in particular organic LEDs (OLEDs).

Die Energieerzeugungseinheit der Energieversorgungsvorrichtung kann insbesondere eine Photovoltaikanlage sein. Die Photovoltaikanlage kann eine Vielzahl von Solarzellen aufweisen, die einen Gleichstrom erzeugen, der in eine Energiespeichereinheit eingespeist wird.The power generation unit of the power supply device may in particular be a photovoltaic system. The photovoltaic system may include a plurality of solar cells that generate a direct current that is fed into an energy storage unit.

Bei der Energiespeichereinheit der Energieversorgungsvorrichtung kann es sich insbesondere um einen Akkumulator handeln. Der Akkumulator dient als Zwischenspeicher für die vorzugsweise mittels einer Photovoltaikanlage erzeugte Energie.The energy storage unit of the energy supply device may in particular be an accumulator. The accumulator serves as a buffer for the energy preferably generated by means of a photovoltaic system.

Die Energieversorgungsvorrichtung und die Leuchtmitteleinheit weisen eine gemeinsame Steuervorrichtung auf. Die Steuerung der Energieversorgungsvorrichtung, insbesondere einer Photovoltaikanlage, und die Steuerung der Leuchtmitteleinheit sind also vorteilhaft in ein einziges Gerät integriert und/oder erfolgen korreliert miteinander.The power supply device and the lighting unit have a common control device. The control of the power supply device, in particular a photovoltaic system, and the control of the lighting unit are thus advantageously integrated into a single device and / or done correlated with each other.

Die Steuervorrichtung ist vorzugsweise mit einer zur bidirektionalen Datenübertragung geeigneten Datenleitung mit der Energieversorgungsvorrichtung verbunden. Insbesondere kann die Steuervorrichtung von der Energieversorgungsvorrichtung Daten über die eingehende und/oder gespeicherte Energie empfangen. Die Steuervorrichtung ist insbesondere dazu geeignet, die Leuchtmittel in Abhängigkeit von den Daten der eingehenden und/oder gespeicherten Energie zu steuern. Beispielsweise kann die Steuervorrichtung die Intensität und/oder die Anzahl der betriebenen Leuchtmittel bei geringen Werten der gespeicherten Energie und/oder der eingehenden Energie vermindern, um eine für einen vorgesehenen Beleuchtungszweck vorgegebene Mindestbeleuchtungsstärke in einem möglichst langen Zeitraum aufrecht erhalten zu können.The control device is preferably connected to the energy supply device by means of a data line suitable for bidirectional data transmission. In particular, the controller may receive data from the power supply device about the incoming and / or stored energy. The control device is particularly suitable for controlling the lighting means in dependence on the data of the incoming and / or stored energy. For example, the control device can reduce the intensity and / or the number of operated bulbs at low values of the stored energy and / or the incoming energy in order to maintain a predetermined minimum illuminance for a planned lighting purpose in as long a period as possible.

Da im Fall einer Photovoltaikanlage die in der Energieerzeugungseinheit erzeugte Energie von der Intensität des einfallenden Sonnenlichts abhängt, können die von der Steuereinheit ermittelten Daten der eingehenden Energie zur Steuerung der Leuchtmitteleinheit in Abhängigkeit von der Tageshelligkeit verwendet werden. Die Energieerzeugungseinheit fungiert in diesem Fall vorteilhaft gleichzeitig als Helligkeitssensor für die Steuerung der Leuchtmitteleinheit.Since, in the case of a photovoltaic system, the energy generated in the energy generating unit depends on the intensity of the incident sunlight, the data of the incoming energy determined by the control unit can be used for the incoming energy Control of the lighting unit depending on the daylight brightness can be used. In this case, the power generation unit advantageously simultaneously functions as a brightness sensor for controlling the lighting unit.

Die Steuervorrichtung kann bei der Steuerung der Leuchtmittel eine Prognose für die in einem vorhersehbaren Zeitraum eingehende Energie berücksichtigen. Die Prognose kann insbesondere auf einer Wettervorhersage beruhen. Dazu ist die Steuervorrichtung an eine Wetterstation angeschlossen und/oder zum Empfang von Wetterdaten über das Internet eingerichtet.When controlling the lighting means, the control device can take into account a prognosis for the energy arriving in a foreseeable period of time. The forecast can be based in particular on a weather forecast. For this purpose, the control device is connected to a weather station and / or set up to receive weather data via the Internet.

Die Steuervorrichtung ist weiterhin vorzugsweise dazu eingerichtet, die Energieerzeugungseinheit, insbesondere eine Photovoltaikanlage, zu steuern. Insbesondere kann die Steuervorrichtung dazu eingerichtet sein, eine Photovoltaikanlage gemäß dem Sonnenstand auszurichten, um das einfallende Sonnenlicht besonders effizient zur Energieerzeugung zu nutzen.The control device is further preferably configured to control the power generation unit, in particular a photovoltaic system. In particular, the control device can be set up to align a photovoltaic system in accordance with the position of the sun in order to use the incident sunlight particularly efficiently for energy generation.

Die Steuervorrichtung ist vorteilhaft mit einer weiteren zur Datenübertragung geeigneten Datenleitung mit der Leuchtmitteleinheit verbunden. Vorzugsweise ist die Datenleitung zur bidirektionalen Datenübertragung geeignet. Die von der Steuervorrichtung an die Leuchtmitteleinheit übertragenen Signale umfassen insbesondere die Informationen, welche der Leuchtmittel mit welcher Intensität betrieben werden sollen. Vorzugsweise kann die Steuervorrichtung von der Leuchtmitteleinheit Daten über den Betriebszustand der Leuchtmittel empfangen, beispielsweise die Betriebstemperatur und/oder den momentanen Energieverbrauch der Leuchtmittel. Die Leuchtmitteleinheit kann ferner einen oder mehrere Sensoren aufweisen, um beispielsweise die Intensität des in einen zu beleuchtenden Raums einfallenden Tageslichts zu messen. Die Steuervorrichtung kann die Leuchtmittel in Abhängigkeit dieser Daten vorteilhaft derart steuern, dass in dem zu beleuchtenden Raum eine gewünschte Beleuchtungsintensität erreicht wird.The control device is advantageously connected to a further data line suitable for data transmission with the lighting unit. Preferably, the data line is suitable for bidirectional data transmission. The signals transmitted by the control device to the lighting unit comprise, in particular, the information which is to be operated with which intensity of the lighting means. The control device may preferably receive data on the operating state of the lighting means from the lighting unit, for example the operating temperature and / or the instantaneous energy consumption of the lighting means. The lighting unit may further comprise one or more sensors to measure, for example, the intensity of incident in a room to be illuminated daylight. The control device can advantageously control the lighting means as a function of this data such that a desired illumination intensity is achieved in the room to be illuminated.

Die Steuervorrichtung kann bei der Weißlicht emittierenden Leuchtmitteleinheit, bei der die Erzeugung von Weißlicht auf additiver Farbmischung farbiger LEDs basiert, die Farbtemperatur verändern um eine vorgegebene Leuchtstärke bei geringerem Energieverbrauch zu erreichen. Somit kann die Steuervorrichtung vorzugsweise eine vom Nutzer vorgegebene Beleuchtungssituation unter Ausnutzung der vorhandenen Energievorräte so gut wie möglich realisieren.The control device can change the color temperature in the white light emitting lamp unit, in which the generation of white light based on additive color mixing of colored LEDs, to achieve a predetermined luminosity with less energy consumption. Thus, the control device can preferably realize as much as possible a lighting situation predefined by the user by utilizing the available energy stores.

Die hierin beschriebene Steuervorrichtung für eine Beleuchtungsanlage ist dazu eingerichtet, eine Leuchtmitteleinheit zu steuern, die mehrere mit einem Gleichstrom betreibbare Leuchtmittel umfasst, und eine Energieversorgungsvorrichtung zu steuern, die zur Versorgung der Leuchtmitteleinheit mit einem Gleichstrom eingerichtet ist.The control device for a lighting system described herein is configured to control a lighting unit that includes a plurality of lamps that can be operated with direct current, and to control a power supply device that is set up to supply the lighting unit with a direct current.

Die Steuervorrichtung weist dazu vorzugsweise mindestens eine Schnittstelle zum Senden von Daten an die Leuchtmitteleinheit und vorteilhaft auch zum Empfang von Daten von der Leuchtmitteleinheit auf. Weiterhin weist die Steuervorrichtung eine weitere Schnittstelle zum Senden von Daten an die Energieversorgungsvorrichtung und vorteilhaft auch zum Empfang von Daten von der Energieversorgungsvorrichtung auf. Die Steuervorrichtung ist vorteilhaft zum Empfang von Wetterdaten von einer Wetterstation und/oder dem Internet eingerichtet.For this purpose, the control device preferably has at least one interface for transmitting data to the illuminant unit and advantageously also for receiving data from the illuminant unit. Furthermore, the control device has a further interface for sending data to the power supply device and advantageously also for receiving data from the power supply device on. The control device is advantageously set up to receive weather data from a weather station and / or the Internet.

Die Steuervorrichtung ist weiterhin zur Veränderung der Farbtemperatur der Weißlicht emittierenden Leuchtmitteleinheit durch additive Farbmischung einzelner Leuchtmittel eingerichtet.The control device is further adapted to change the color temperature of the white light emitting lamp unit by additive color mixing of individual light sources.

Weitere vorteilhafte Ausgestaltungen der Steuervorrichtung ergeben sich aus den im Zusammenhang mit der Beleuchtungsanlage beschriebenen Ausgestaltungen der Steuervorrichtung und umgekehrt.Further advantageous embodiments of the control device will become apparent from the embodiments of the control device described in connection with the lighting system and vice versa.

Bei einem Verfahren zur Steuerung der zuvor beschriebenen Beleuchtungsanlage werden die Energieversorgungseinrichtung und die Leuchtmitteleinheit der Beleuchtungsanlage von einer gemeinsamen Steuervorrichtung gesteuert.In a method for controlling the lighting system described above, the power supply device and the lighting unit of the lighting system are controlled by a common control device.

Die Energieerzeugungseinheit der Energieversorgungsvorrichtung kann insbesondere eine Photovoltaikanlage sein, wobei die Photovoltaikanlage mittels der Steuervorrichtung in Abhängigkeit vom Sonnenstand ausgerichtet wird. Hierzu weist die Photovoltaikanlage beispielsweise eine Motorik zur Ausrichtung der Solarzellen gemäß dem Einfallswinkel des Sonnenlichts auf. Daten zum Einfallswinkel des Sonnenlichts in Abhängigkeit von Datum und Uhrzeit sind vorteilhaft in der Steuervorrichtung gespeichert.The energy generating unit of the energy supply device may in particular be a photovoltaic system, the photovoltaic system being aligned by means of the control device as a function of the position of the sun. For this purpose, the photovoltaic system has, for example, a motor system for aligning the solar cells according to the angle of incidence of the sunlight. Data on the angle of incidence of the sunlight as a function of date and time are advantageously stored in the control device.

Bei dem Verfahren wird vorteilhaft weiterhin eine in der Energiespeichereinheit der Energieversorgungsvorrichtung gespeicherte Energie von der Steuervorrichtung ermittelt und die Leuchtmitteleinheit in Abhängigkeit von der gespeicherten Energie gesteuert. Beispielsweise kann die Steuervorrichtung einzelne Leuchtmittel der Leuchtmitteleinheit abschalten und/oder deren Intensität vermindern, wenn die in der Energiespeichereinheit gespeicherte Energie einen Sollwert unterschreitet.In the method, an energy stored in the energy storage unit of the energy supply device is furthermore advantageously determined by the control device and the lighting unit controlled in dependence on the stored energy. For example, the control device can switch off individual lighting means of the lighting unit and / or reduce their intensity if the energy stored in the energy storage unit falls below a setpoint value.

Die Leuchtmitteleinheit wird mittels der Steuervorrichtung in Abhängigkeit von aus dem Internet und/oder von einer Wetterstation empfangenen Wetterdaten gesteuert. Beispielsweise können die Leuchtmittel in einem Energiesparmodus betrieben werden, wenn aufgrund der Wettervorhersage absehbar ist, dass die in einem vorhersehbaren Zeitraum eingehende Energie gering ist. Die Steuervorrichtung kann also nicht nur den aktuellen Status des Energiespeichers, sondern auch eine Prognose für den zukünftig zu erwartenden Energieeingang in der Energieerzeugungseinheit zur Steuerung der Leuchtmitteleinheit verwenden. Die Beleuchtungsanlage zeichnet sich also durch ein vorausschauendes Energiemanagement aus.The lighting unit is controlled by the control device in response to weather data received from the Internet and / or from a weather station. For example, the bulbs can be operated in a power-saving mode, if it is foreseeable on the basis of the weather forecast that the incoming energy in a foreseeable period of time is low. Thus, the control device can not only use the current status of the energy store, but also a forecast for the future expected energy input in the power generation unit for controlling the lighting unit. The lighting system is characterized by a forward-looking energy management.

Bei dem Verfahren wird weiterhin die Farbtemperatur der Weißlicht emittierenden Leuchtmitteleinheit, bei der die Erzeugung von Weißlicht auf additiver Farbmischung farbiger LEDs basiert, so durch die Steuervorrichtung verändert, dass eine vorgegebene Leuchtstärke bei geringerem Energieverbrauch erreicht wird. Somit kann die Steuervorrichtung vorzugsweise eine vom Nutzer vorgegebene Beleuchtungssituation unter Ausnutzung der vorhandenen Energievorräte so gut wie möglich realisieren.In the method, furthermore, the color temperature of the white-light emitting lamp unit, in which the generation of white light is based on additive color mixing of colored LEDs, is changed by the control device so that a predetermined luminous intensity is achieved with lower energy consumption. Thus, the control device can preferably realize as much as possible a lighting situation predefined by the user by utilizing the available energy stores.

Weitere vorteilhafte Ausgestaltungen des Verfahrens ergeben sich aus den zuvor im Zusammenhang mit der Beleuchtungsanlage und der Steuervorrichtung beschriebenen Ausgestaltungen und umgekehrt.Further advantageous embodiments of the method will become apparent from the embodiments described above in connection with the lighting system and the control device and vice versa.

Die Erfindung wird im Folgenden anhand der Figur näher erläutert.The invention will be explained in more detail below with reference to FIG.

Figur 1 zeigt eine Beleuchtungsanlage mit einer Energieversorgungsvorrichtung gemäß einem Ausführungsbeispiel der Erfindung. FIG. 1 shows a lighting system with a power supply device according to an embodiment of the invention.

Die in der Figur dargestellten Bestandteile sowie die Größenverhältnisse der Bestandteile untereinander sind nicht als maßstabsgerecht anzusehen.The components shown in the figure and the size ratios of the components with each other are not to be regarded as true to scale.

Die in Figur 1 dargestellte Beleuchtungsanlage 1 enthält eine Leuchtmitteleinheit 3. Die Leuchtmitteleinheit 3 umfasst mehrere Leuchtmittel 31, die mit einem Gleichstrom betreibbar sind. Insbesondere handelt es sich bei den Leuchtmitteln 31 um LED-Lichtquellen, die jeweils eine oder mehrere LEDs 32 aufweisen. Beispielsweise können die Leuchtmittel 31, wie in Figur 1 dargestellt, LED-Arrays sein. Alternativ ist es aber auch möglich, dass ein oder mehrere Leuchtmittel 31 nur eine einzelne LED aufweisen.In the FIG. 1 illustrated lighting system 1 includes a lighting means 3. The lighting unit 3 includes a plurality of lighting means 31 which are operable with a direct current. In particular, the lighting means 31 are LED light sources, each having one or more LEDs 32. For example, the lighting means 31, as in FIG. 1 shown to be LED arrays. Alternatively, it is also possible that one or more lighting means 31 have only a single LED.

Die Leuchtmittel 31 können beispielsweise Weißlicht emittierende LEDs 32 aufweisen. Alternativ ist es auch möglich, dass die Leuchtmittel 31 farbige oder verschiedenfarbige LEDs 32 aufweisen, die zum Beispiel mittels additiver Farbmischung eine Vielzahl von Beleuchtungsfarben ermöglichen.The lighting means 31 may comprise, for example, white light emitting LEDs 32. Alternatively, it is also possible for the lighting means 31 to have colored or differently colored LEDs 32 which, for example, enable a multiplicity of illumination colors by means of additive color mixing.

Bei den Leuchtmitteln 31 kann es sich auch um organische LEDs handeln, die insbesondere als flächige Lichtquelle ausgestaltet sein können. Die Leuchtmitteleinheit 3 kann insbesondere auch verschiedene Typen von mit einem Gleichstrom betreibbaren Leuchtmitteln 31 enthalten.The lighting means 31 may also be organic LEDs, which may be configured in particular as a flat light source. The lighting unit 3 may in particular also contain different types of lamps 31 which can be operated with a direct current.

Die Leuchtmitteleinheit 3 ist zur Stromversorgung an eine Energieversorgungsvorrichtung 2 angeschlossen. Die Energieversorgungsvorrichtung 2 enthält eine Energieerzeugungseinheit 21 und eine Energiespeichereinheit 22. Die Energieerzeugungseinheit 21 ist zur Erzeugung eines Gleichstroms geeignet, wobei die Energieerzeugung vorteilhaft auf der Nutzung einer regenerativen Energie basiert. Insbesondere kann die Energieerzeugungseinheit 21 eine Photovoltaikanlage sein.The lighting unit 3 is connected to a power supply device 2 for power supply. The power supply device 2 includes a power generation unit 21 and an energy storage unit 22. The power generation unit 21 is suitable for generating a direct current, wherein the power generation is advantageously based on the use of a regenerative energy. In particular, the power generation unit 21 may be a photovoltaic system.

Die Energieversorgungsvorrichtung 2 umfasst weiterhin eine Energiespeichereinheit 22, bei der es sich insbesondere um einen Akkumulator handeln kann. Der mittels der Energieerzeugungseinheit 21 erzeugte Gleichstrom wird in die Energiespeichereinheit 22 eingespeist und dort zwischengespeichert.The energy supply device 2 further comprises an energy storage unit 22, which may in particular be an accumulator. The direct current generated by means of the energy generating unit 21 is fed into the energy storage unit 22 and stored there temporarily.

Die Energiespeichereinheit 22 fungiert als Gleichstromquelle für die Leuchtmitteleinheit 3. Die Leuchtmitteleinheit 3 ist vorzugsweise direkt mittels mindestens einer Stromleitung 23, durch die ein Gleichstrom fließt, an die Energiespeichereinheit 22 der Energieversorgungsvorrichtung 2 angeschlossen. Insbesondere befinden sich zwischen der Energiespeichereinheit 22 und den Leuchtmitteln 31 keine Vorrichtungen zur Umwandlung eines Gleichstroms in einen Wechselstrom oder eines Wechselstroms in einen Gleichstrom. Das heißt, dass die in der Energiespeichereinheit 22 gespeicherte Energie nicht wie herkömmlicherweise in eine Netz-Wechselspannung von zum Beispiel 230 Volt umgewandelt wird, sondern die Leuchtmitteleinheit 3 direkt an die als Gleichstromquelle fungierende Energiespeichereinheit 22 angeschlossen ist. Auf diese Weise werden Verluste, die beim Konvertieren eines Gleichstroms in einen Wechselstrom auftreten, vermieden.The energy storage unit 22 acts as a DC power source for the illuminant unit 3. The illuminant unit 3 is preferably connected directly to the energy storage unit 22 of the energy supply device 2 by means of at least one power line 23 through which a direct current flows. In particular, there are no devices for converting a direct current into an alternating current or current between the energy storage unit 22 and the lighting means 31 of an alternating current into a direct current. This means that the energy stored in the energy storage unit 22 is not converted into a mains AC voltage of, for example, 230 volts as conventionally, but the lighting unit 3 is connected directly to the energy storage unit 22 functioning as a direct current source. In this way, losses that occur when converting a direct current into an alternating current are avoided.

Weiterhin ist es auch nicht erforderlich, die Leuchtmitteleinheit 3 mit einem Netzteil zur Umwandlung eines Wechselstroms in einen Gleichstrom auszurüsten, wie es beim Betrieb von LED-Lichtquellen 31 mit einer Netzspannung in der Regel erforderlich ist. Da bei der Beleuchtungsanlage 1 Konvertierungen eines Gleichstroms in einen Wechselstrom und umgekehrt vermieden werden, zeichnet sich die Beleuchtungsanlage 1 durch eine verbesserte Effizienz und somit einen geringen Energieverbrauch aus.Furthermore, it is also not necessary to equip the lighting unit 3 with a power supply unit for converting an alternating current into a direct current, as is required in the operation of LED light sources 31 with a mains voltage in the rule. Since in the lighting system 1 conversions of a direct current into an alternating current and vice versa are avoided, the lighting system 1 is characterized by improved efficiency and thus low energy consumption.

Die Beleuchtungsanlage 1 weist weiterhin eine Steuervorrichtung 4 auf, die sowohl die Energieversorgungsvorrichtung 2 als auch die Leuchtmitteleinheit 3 steuert. Insbesondere erfolgt die Steuerung der Energieversorgungsvorrichtung 2 und der Leuchtmitteleinheit 3 nicht unabhängig voneinander, sondern wird vorteilhaft von der gemeinsamen Steuervorrichtung 4 unter Ausnutzung von Daten, welche die Steuervorrichtung 4 von der Energieversorgungsvorrichtung 2 und der Leuchtmitteleinheit 3 empfängt, koordiniert.The lighting system 1 furthermore has a control device 4, which controls both the power supply device 2 and the lighting unit 3. In particular, the control of the power supply device 2 and the lighting unit 3 is not independent of each other, but is advantageously coordinated by the common control device 4 by utilizing data which the control device 4 receives from the power supply device 2 and the lighting unit 3.

Die Steuervorrichtung 3 ist vorteilhaft mittels einer bidirektionalen Datenleitung 42 an die Energieversorgungsvorrichtung 2 angeschlossen. Die Steuervorrichtung 4 kann von der Energieversorgungsvorrichtung 2 insbesondere Daten über die in der Energiespeichereinheit 22 gespeicherte Energie und die momentan mittels der Energieerzeugungseinheit 21 erzeugte Energie empfangen.The control device 3 is advantageously connected to the energy supply device 2 by means of a bidirectional data line 42. The control device 4 can by In particular, the power supply device 2 receives data about the energy stored in the energy storage unit 22 and the energy currently generated by means of the energy generation unit 21.

Die Steuervorrichtung 4 ist weiterhin mit einer vorzugsweise bidirektionalen Datenleitung 43 mit der Leuchtmitteleinheit 3 verbunden. Die Steuervorrichtung 4 kann über die Datenleitung 43 insbesondere Steuersignale an die Leuchtmitteleinheit 3 senden, um mittels der Leuchtmittel 31 eine gewünschte Beleuchtungssituation zu erzeugen. Insbesondere kann die Steuervorrichtung 4 bei der Steuerung der Leuchtmitteleinheit 3 den Ladezustand der Energiespeichereinheit 22 berücksichtigen. Beispielsweise kann die Leuchtmitteleinheit 3 bei einem niedrigen Ladezustand in der Energiespeichereinheit 22 automatisch in einem Energiesparmodus betrieben werden. Es ist beispielsweise möglich, dass zur Energieeinsparung einzelne LEDs 32 der Leuchtmittel 31 abgeschaltet werden und/oder die Leuchtmittel 31 mit einer geringeren Leistung betrieben werden.The control device 4 is furthermore connected to the illuminating unit 3 with a preferably bidirectional data line 43. The control device 4 can in particular send control signals to the illuminant unit 3 via the data line 43 in order to generate a desired lighting situation by means of the luminous means 31. In particular, the control device 4 can take into account the state of charge of the energy storage unit 22 when controlling the lighting unit 3. For example, at a low charge state in the energy storage unit 22, the lighting unit 3 can be automatically operated in a power-saving mode. For example, it is possible for individual LEDs 32 of the lighting means 31 to be switched off to save energy, and / or for the lighting means 31 to be operated at a lower power.

Die Steuervorrichtung 4 berücksichtigt beim Betrieb der Leuchtmitteleinheit 3 nicht nur den aktuellen Ladezustand der Energiespeichereinheit 22, sondern auch eine Prognose für die in der Energieerzeugungseinheit 21 in einem vorhersehbaren Zeitraum erzeugbare Energie.During operation of the lighting unit 3, the control device 4 not only takes into account the current state of charge of the energy storage unit 22, but also a prognosis for the energy which can be generated in the energy generation unit 21 in a foreseeable period of time.

Wenn die Energieerzeugungseinheit 21 eine Photovoltaikanlage ist, ist die erzeugte Energie insbesondere vom Sonnenstand und der Witterung abhängig. Um aktuelle Daten für den Sonnenstand und/oder die Witterung zu empfangen, ist die Steuervorrichtung 4 vorteilhaft mittels einer Datenleitung 45 mit einer Wetterstation 5 verbunden. Alternativ oder zusätzlich kann die Steuervorrichtung 4 mittels einer Datenleitung 46 mit dem Internet 6 verbunden sein, um insbesondere Daten zum Sonnenstand oder Prognosen für die Wetterentwicklung zu empfangen. Die Steuervorrichtung 4 kann die von der Wetterstation 5 und/oder aus dem Internet 6 empfangenen Daten beispielsweise dazu nutzen, den Stromverbrauch der Leuchtmittel 31 zu vermindern, wenn aufgrund einer zu erwartenden geringen Sonneneinstrahlung mit einer geringen Energieerzeugung in der Energieerzeugungseinheit 21 zu rechnen ist.If the power generation unit 21 is a photovoltaic system, the energy generated depends in particular on the position of the sun and the weather. In order to receive current data for the position of the sun and / or the weather, the control device 4 is advantageous by means of a data line 45 connected to a weather station 5. Alternatively or additionally, the control device 4 may be connected to the Internet 6 by means of a data line 46 in order in particular to receive data on the position of the sun or prognoses for the weather development. The control device 4 can use the data received from the weather station 5 and / or from the Internet 6, for example, to reduce the power consumption of the lighting means 31, if due to an expected low solar radiation with a low power generation in the power generation unit 21 is to be expected.

Wenn die Energieerzeugungseinheit 21 eine Photovoltaikanlage ist, ist die Steuervorrichtung 4 vorzugsweise dazu eingerichtet, die Photovoltaikanlage in Abhängigkeit vom Sonnenstand auszurichten. Hierzu kann die Steuervorrichtung 4 gespeicherte Daten und/oder die von der Wetterstation 5 und/oder aus dem Internet 6 empfangenen Daten verwerten. Die in der Photovoltaikanlage 21 enthaltenen Solarzellen können beispielsweise mittels einer geeigneten Motorik derart ausgerichtet werden, dass sie das einfallende Sonnenlicht bestmöglich absorbieren. Da Photovoltaikanlagen einen optimalen Arbeitspunkt bei einer bestimmten Temperatur aufweisen, ist es auch denkbar, die Abwärme der Leuchtmitteleinheit 3 an kalten Tagen für eine Erwärmung und somit eine Steigerung der Effizienz der Photovoltaikanlage zu nutzen.If the power generation unit 21 is a photovoltaic system, the control device 4 is preferably configured to align the photovoltaic system as a function of the position of the sun. For this purpose, the control device 4 can utilize stored data and / or the data received from the weather station 5 and / or from the Internet 6. The solar cells contained in the photovoltaic system 21 can be aligned, for example, by means of a suitable motor technology such that they absorb the incident sunlight as best as possible. Since photovoltaic systems have an optimum operating point at a certain temperature, it is also conceivable to use the waste heat of the lighting unit 3 on cold days for heating and thus an increase in the efficiency of the photovoltaic system.

Weiterhin ist es vorteilhaft, wenn die Steuervorrichtung 4 Betriebsdaten von den Leuchtmitteln 31 über die bidirektionale Datenverbindung 43 empfängt und zu deren Steuerung verwertet. Insbesondere kann die Steuervorrichtung 4 die Daten über den Energieverbrauch der einzelnen Leuchtmittel 31 empfangen. Weiterhin ist es möglich, dass die Leuchtmitteleinheit 3 einen oder mehrere Sensoren umfasst, welche beispielsweise die Betriebstemperatur der LEDs 32 und/oder die Umgebungshelligkeit messen. Wenn die Leuchtmitteleinheit 3 beispielsweise einen Umgebungslichtsensor enthält, kann die Steuervorrichtung 4 die Leistung der Leuchtmittel 31 an die Umgebungshelligkeit, insbesondere an einen variierenden Einfall von Tageslicht, anpassen. Insbesondere kann die Steuervorrichtung 4 dazu eingerichtet sein, eine von einem Nutzer vorgegebene Beleuchtungssituation unter Ausnutzung der vorhandenen Energievorräte so gut wie möglich zu realisieren. Bei einer Weißlicht emittierenden Leuchtmitteleinheit 3, bei der die Erzeugung von Weißlicht auf additiver Farbmischung farbiger LEDs basiert, kann gegebenenfalls die Farbtemperatur verändert werden, um eine vorgegebene Leuchtstärke bei geringerem Energieverbrauch zu erreichen.Furthermore, it is advantageous if the control device 4 receives operating data from the light-emitting means 31 via the bidirectional data connection 43 and utilizes it for its control. In particular, the control device 4, the data on the energy consumption of the individual lamps 31 received. Furthermore, it is possible for the illuminant unit 3 to comprise one or more sensors which measure, for example, the operating temperature of the LEDs 32 and / or the ambient brightness. If the illuminant unit 3 contains, for example, an ambient light sensor, the control device 4 can adapt the power of the luminous means 31 to the ambient brightness, in particular to a varying incidence of daylight. In particular, the control device 4 can be set up to realize as much as possible a lighting situation predefined by a user by utilizing the available energy stores. In the case of a white-light emitting luminous unit 3 in which the generation of white light is based on additive color mixing of colored LEDs, it is optionally possible to change the color temperature in order to achieve a given luminous intensity with lower energy consumption.

Die Erfindung ist nicht durch die Beschreibung anhand der Ausführungsbeispiele beschränkt. Vielmehr umfasst die Erfindung jedes neue Merkmal sowie jede Kombination von Merkmalen, was insbesondere jede Kombination von Merkmalen in den Patentansprüchen beinhaltet, auch wenn dieses Merkmal oder diese Kombination selbst nicht explizit in den Patentansprüchen oder Ausführungsbeispielen angegeben ist.The invention is not limited by the description with reference to the embodiments. Rather, the invention encompasses any novel feature as well as any combination of features, including in particular any combination of features in the claims, even if this feature or combination itself is not explicitly stated in the claims or exemplary embodiments.

Claims (10)

  1. A lighting system (1) comprising:
    - a power supply apparatus (2) which has a power generation unit (21), which is suitable for generating a direct current, and an energy storage unit (22) for storing energy from the power generation unit (21), and
    - a lighting means unit (3) which emits white light and comprises a plurality of lighting means (31), which can be operated with a direct current, and which is connected to the energy storage unit (22) in order to be supplied with a direct current,
    wherein no apparatus for converting a direct current into an alternating current or an alternating current into a direct current is arranged between the power generation unit (21) and the lighting means (31), wherein the power supply apparatus (2) and the lighting means unit (3) have a common control apparatus (4) which is connected to a weather station (5) and/or is designed to receive weather data via the Internet (6), and the control apparatus (4) is designed to control the lighting means unit (3) as a function of a prediction for the amount of energy which can be expected to be input into the power generation unit (21) in the future,
    characterized in that
    - the lighting means (31) are colored LEDs,
    - the generation of white light is achieved by additive color mixing of the colored LEDs,
    - the control device (4) is designed to change a color temperature of the lighting means unit (3) which emits white light, such that a predefined light intensity is achieved with a relatively low level of power consumption.
  2. The lighting system according to claim 1,
    wherein the lighting means (31) comprise one or more LED light sources.
  3. The lighting system according to either of the preceding claims,
    wherein the power generation unit (21) is a photovoltaic system.
  4. The lighting system according to one of the preceding claims,
    wherein the energy storage unit (22) is a rechargeable battery.
  5. The lighting system according to one of the preceding claims,
    wherein the control apparatus (4) is connected to the power supply apparatus (2) by a data line (42) which is suitable for bidirectional data transmission.
  6. The lighting system according to one of the preceding claims,
    wherein the control apparatus (4) is connected to the lighting means unit (3) by a further data line (43) which is suitable for bidirectional data transmission.
  7. A control apparatus (4) for a lighting system, which is designed
    - to control a lighting means unit (3) which emits white light and comprises a plurality of lighting means (31) which can be operated with a direct current, and
    - to control a power supply apparatus (2) which is designed to supply the lighting means unit (3) with a direct current, and
    - to control the lighting means unit (3) as a function of a prediction for the amount of energy which can be expected to be input into the power generation unit (21) in the future, wherein the control apparatus (4) is connected to a weather station (5) and/or is designed to receive weather data via the Internet (6),
    characterized in that
    - the lighting means (31) are colored LEDs,
    - the generation of white light is achieved by additive color mixing of the colored LEDs,
    - the control device (4) is designed to change a color temperature of the lighting means unit (3) which emits white light, such that a predefined light intensity is achieved with a relatively low level of power consumption.
  8. A method for controlling a lighting system according to one of claims 1 to 6,
    wherein the lighting means unit (3) is controlled by means of the control apparatus as a function of a prediction for the amount of energy which can be expected to be input into the power generation unit (21) in the future, and the control is performed as a function of weather data received from the Internet (6) and/or from a weather station (5), wherein the color temperature of the lighting means unit (3) which emits white light is changed such that a predefined light intensity is achieved with a relatively low level of power consumption.
  9. The method according to claim 8,
    wherein the power generation unit (21) is a photovoltaic system, and the photovoltaic system is oriented by means of the control apparatus (4) as a function of the position of the sun.
  10. The method according to claim 8 or 9,
    wherein an amount of energy which is stored in the energy storage unit (22) is ascertained by the control apparatus (4) and the lighting means unit (3) is controlled as a function of the stored amount of energy.
EP20110181662 2010-09-22 2011-09-16 Lighting assembly with an energy supply device, control device for a lighting assembly and method for controlling same Active EP2434207B8 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010046299A DE102010046299B4 (en) 2010-09-22 2010-09-22 Lighting system with a power supply device, control device for a lighting system and method for controlling a lighting system

Publications (3)

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EP2434207A1 EP2434207A1 (en) 2012-03-28
EP2434207B1 true EP2434207B1 (en) 2015-02-25
EP2434207B8 EP2434207B8 (en) 2015-04-22

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EP20110181662 Active EP2434207B8 (en) 2010-09-22 2011-09-16 Lighting assembly with an energy supply device, control device for a lighting assembly and method for controlling same

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US (1) US20120126709A1 (en)
EP (1) EP2434207B8 (en)
CN (1) CN102573200B (en)
DE (1) DE102010046299B4 (en)

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Publication number Priority date Publication date Assignee Title
DE102012017803A1 (en) * 2012-09-10 2014-03-13 Rwe Effizienz Gmbh Emergency power supply
CN103024995B (en) * 2012-11-19 2014-12-03 宁波金源电气有限公司 Solar LED (Light-Emitting Diode) streetlamp control system and control method
DE102017109493A1 (en) * 2017-05-03 2018-11-08 B & S Elektronische Geräte GmbH Luminaire arrangement with a ballast and a lamp
EP4268545A4 (en) 2020-12-22 2024-10-23 Milwaukee Electric Tool Corp Lighting device with state of charge based control

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Publication number Priority date Publication date Assignee Title
US4841416A (en) * 1988-03-02 1989-06-20 Todd Doss Solar charging lamp
DE9215126U1 (en) * 1992-11-06 1992-12-24 Dinnebier-Licht GmbH, 5600 Wuppertal Solar cell light
ES2348841T3 (en) * 2006-11-10 2010-12-15 Philips Solid-State Lighting Solutions, Inc. PROCEDURES AND APPLIANCE TO CONTROL LED CONNECTED IN SERIES.
ES2436283T3 (en) * 2007-01-05 2013-12-30 Philips Solid-State Lighting Solutions, Inc. Methods and apparatus for simulating resistive loads
US7731383B2 (en) * 2007-02-02 2010-06-08 Inovus Solar, Inc. Solar-powered light pole and LED light fixture
TWI451577B (en) * 2008-07-02 2014-09-01 Sunplus Mmedia Inc Solar tracking device and method for tracking thereof
EP2308197A4 (en) * 2008-07-31 2014-04-16 Inovus Solar Inc Wireless autonomous solar-powered outdoor lighting and energy and information management network
EP2356371A4 (en) * 2008-11-14 2015-04-15 Inovus Solar Inc Energy-efficient solar-powered outdoor lighting
DE102009007501B4 (en) * 2009-02-05 2017-10-19 Osram Gmbh Method for operating a lighting system

Also Published As

Publication number Publication date
US20120126709A1 (en) 2012-05-24
EP2434207A1 (en) 2012-03-28
DE102010046299B4 (en) 2012-05-03
EP2434207B8 (en) 2015-04-22
CN102573200B (en) 2015-12-02
CN102573200A (en) 2012-07-11
DE102010046299A1 (en) 2012-03-22

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