EP3238506B1 - Method and devices for communication between led module and led converter - Google Patents

Method and devices for communication between led module and led converter Download PDF

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Publication number
EP3238506B1
EP3238506B1 EP15832941.7A EP15832941A EP3238506B1 EP 3238506 B1 EP3238506 B1 EP 3238506B1 EP 15832941 A EP15832941 A EP 15832941A EP 3238506 B1 EP3238506 B1 EP 3238506B1
Authority
EP
European Patent Office
Prior art keywords
led
led module
converter
optical signal
modulated optical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15832941.7A
Other languages
German (de)
French (fr)
Other versions
EP3238506A1 (en
Inventor
Frank Horn
Reinhold Juen
Frank Lochmann
Günter MARENT
Florian Moosmann
Peter Pachler
Alexander Barth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tridonic Jennersdorf GmbH
Tridonic GmbH and Co KG
Original Assignee
Tridonic Jennersdorf GmbH
Tridonic GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE102014226788.9A external-priority patent/DE102014226788A1/en
Application filed by Tridonic Jennersdorf GmbH, Tridonic GmbH and Co KG filed Critical Tridonic Jennersdorf GmbH
Publication of EP3238506A1 publication Critical patent/EP3238506A1/en
Application granted granted Critical
Publication of EP3238506B1 publication Critical patent/EP3238506B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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]
    • H05B45/20—Controlling the colour 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
    • H05B47/19—Controlling the light source by remote control via wireless transmission
    • H05B47/195—Controlling the light source by remote control via wireless transmission the transmission using visible or infrared light

Definitions

  • the invention relates to lamps and operating devices for lamps.
  • the invention relates in particular to devices and methods for communication between an LED module and an LED converter.
  • Non-conventional lamps such as lamps with a light emitting diode (LED) or with several LEDs, are becoming increasingly important.
  • LED modules are examples of such lamps.
  • An LED converter is used to operate a light source with at least one light-emitting diode.
  • electrically conductive connections are conventionally used. The connections required for this increase the risk of incorrect installation.
  • the patent WO 2014/141002 shows a communication between an LED module and an LED converter.
  • a modulated optical signal is generated and transmitted for communication between an LED module and an LED converter.
  • the modulated optical signal can be transmitted from the LED module to the LED converter in order to implement unidirectional communication from the LED module to the LED converter.
  • the modulated optical signal can be transmitted from the LED converter to the LED module in order to realize unidirectional communication from the LED converter to the LED module.
  • Modulated optical signals can be transmitted bidirectionally between the LED module and the LED converter
  • a transmitter of the modulated optical signal can be provided on the LED module or the LED converter.
  • One receiver of the modulated optical signal can be provided on the other of the LED module or the LED converter.
  • the modulated optical signal can be transmitted between the LED module and the LED converter through a gaseous propagation medium, for example air, or through an optical conductor.
  • a method for communication between an LED module and an LED converter comprises generating a modulated optical signal and transmitting the modulated optical signal between the LED module and the LED converter.
  • the information relating to the LED module can be implemented by a control device of the LED converter in order to control the LED converter depending on the information relating to the LED module.
  • the method may include demodulating the modulated optical signal with a demodulator of the LED converter.
  • the information relating to the LED module can be selected from a group consisting of: an LED current of the LED module, a forward voltage of the LED module, an LED power of the LED module, a temperature recorded on the LED module, aging information of the LED module and color information of the LED module.
  • At least one circuit of the LED converter can be controlled depending on the modulated optical signal that is received at the LED converter. For example, a setpoint of a control loop, with which an output current of the LED converter is controlled, can be set depending on the modulated optical signal.
  • a transmitter of the modulated optical signal can be arranged at a distance from a receiver of the modulated optical signal.
  • the transmitter and the receiver can be arranged so that they are not integrated in a common housing.
  • An arrangement of the transmitter for generating the modulated optical signal relative to the receiver for receiving the modulated optical signal can be determined by mechanical registration means.
  • the modulated optical signal can propagate freely from the transmitter to the receiver, for example through a gaseous medium.
  • the modulated optical signal can be transmitted in an optical conductor.
  • the LED module can have a first side, on which a plurality of light-emitting diodes for generating light is arranged.
  • the transmitter for generating the modulated optical signal can be arranged on a second side of the LED module, which is different from the first side.
  • the modulated optical signal can be output on one side of the LED module on which a plurality of light-emitting diodes for generating light is arranged.
  • the modulated optical signal can be emitted by one of the light-emitting diodes that generate useful light.
  • the modulated optical signal can be transmitted from the LED converter to the LED module.
  • An integrated semiconductor circuit of the LED module can perform a control or regulating function depending on the received modulated optical signal.
  • the LED module can have a first side, on which a plurality of light-emitting diodes for generating light is arranged.
  • the receiver for receiving the modulated optical signal can be arranged on a second side of the LED module, which is different from the first side.
  • An LED module is set up for coupling to an LED converter and comprises a module communication device for communication with the LED converter using a modulated optical signal.
  • the module communication device can be set up to generate the modulated optical signal as a function of information relating to the LED module.
  • the module communication device can comprise a transmitter for the modulated optical signal.
  • the transmitter can comprise at least one light emitting diode.
  • the module communication device can comprise a modulator that is set up to encode data into the modulated optical signal.
  • the information relating to the LED module can be selected from a group consisting of: an LED current of the LED module, a temperature recorded on the LED module, aging information of the LED module and color information of the LED module.
  • the module communication device can comprise a transmitter for generating the modulated optical signal.
  • the LED module has a first side on which a plurality of light-emitting diodes for generating light is arranged.
  • the transmitter can be arranged on a second side of the LED module, which is different from the first side.
  • the module communication device can be set up to emit the modulated optical signal on one side of the LED module on which a plurality of light-emitting diodes for generating light is arranged.
  • the LED module can comprise a registration means for the mechanical registration of the module communication device relative to a converter communication device of the LED converter.
  • the module communication device can be set up for coupling to an optical conductor.
  • An LED converter is set up for coupling to an LED module and comprises a converter communication device for communicating with the LED module using a modulated optical signal.
  • the converter communication device can comprise a demodulator for demodulating the modulated optical signal.
  • the demodulator can be set up to determine information relating to the LED module from the modulated optical signal, the information relating to the LED module being selected from a group consisting of: an LED current of the LED module, a forward voltage of LED module, an LED power of the LED module, a temperature detected on the LED module, aging information of the LED module and color information of the LED module.
  • the LED converter can comprise a converter circuit and a control device for controlling the converter circuit.
  • the control device can be set up to control the converter circuit as a function of the modulated optical signal.
  • the LED converter can comprise registration means for mechanical registration of the converter communication device relative to a module communication device of the LED module.
  • the converter communication device can be set up for coupling to an optical conductor.
  • a system according to an embodiment includes an LED module according to an embodiment and an LED converter according to an embodiment.
  • the LED converter and the LED module can be integrated in an LED lamp.
  • the modulated optical signal can have a wavelength in the visible range of the electromagnetic spectrum, in the infrared range of the electromagnetic spectrum or in the ultraviolet range of the electromagnetic spectrum.
  • unidirectional or bidirectional communication between the LED converter and the LED module can be carried out with a modulated optical signal. It is not necessary, Attach lines for communication to the LED converter and the LED module.
  • the invention relates to a method for communication between an LED module and an LED converter according to claim 1, an LED module according to claim 6 and an LED converter according to claim 13.
  • the dependent claims represent further aspects of the invention.
  • Figure 1 shows a system 1, in which an LED converter 10 according to an embodiment supplies an LED module 20 according to an embodiment with energy.
  • the illuminant can comprise a light emitting diode (LED) or a plurality of LEDs 21.
  • the LEDs 21 can be inorganic or organic LEDs.
  • the LED converter 10 can optionally be connected to a bus 3 or a wireless communication system in order to receive dimming commands or commands from a color control and / or to output status messages.
  • the LED converter 10 is coupled on the input side to a supply voltage source 2, for example a mains voltage.
  • the LED converter 10 may include a rectifier and a power factor correction circuit 11.
  • the LED converter 10 can comprise at least one converter circuit 12.
  • the converter circuit 12 can be a DC / DC converter, which comprises at least one controllable switch 13.
  • a control device 14 of the LED converter 10 can comprise one or more integrated semiconductor circuits.
  • the control device 14 can be set up to control the operation of the LED converter 10.
  • the control device 14 can be set up to switch at least one controllable switch 13 of the converter circuit 12 in a clocked manner.
  • the control device 14 can, for example, be set up to control or regulate an output current of the LED converter 10 and / or an output voltage of the LED converter 10 and / or an output power of the LED converter 10 and for this purpose the at least one controllable switch 13 of the Converter circuit 12 to control.
  • the control device 14 can be designed as an application-specific special circuit (ASIC, “Application Specific Integrated Circuit”), as a controller, as a microcontroller, as a processor, as a microprocessor or as another chip or as a combination of such units.
  • ASIC Application-specific special circuit
  • the LED converter 10 and the LED module 20 are set up for communication using optical signals. Communication can be unidirectional or bidirectional. If at least one communication takes place from the LED module 20 to the LED converter 10, the control device 14 can be configured to control or dependent on a modulated optical signal that is received by the LED module 20 at the LED converter 10 Control of the LED converter 10 to perform.
  • the LED module 20 is set up to receive energy for operating the at least one light-emitting diode 21 from the LED converter 10.
  • the LED module 20 can have an input which is electrically conductively connected to an output of the LED converter 10.
  • the LED module 20 and the LED converter 10 can be set up for wireless energy transmission.
  • the LED converter 10 can have an antenna for wireless energy transmission.
  • the LED module 20 can have a further antenna in order to receive the wirelessly transmitted energy.
  • the LED module 20 can comprise a rectifier circuit 22 or a driver circuit 22 which is connected between the input and the at least one light-emitting diode 22.
  • a modulated optical signal can be generated by one of the LED converter 10 and the LED module 20 and by the other of the LED converter 10 and the LED module 20 be received.
  • the LED converter 10 For communication with the LED module 20, the LED converter 10 has a converter communication device 15.
  • the converter communication device 15 can comprise a receiver for the modulated optical signal and / or a transmitter for the modulated optical signal.
  • the converter communication device 15 For communication from the LED module 20 to the LED converter 10, the converter communication device 15 comprises an optoelectronic sensor 16.
  • the optoelectronic sensor 16 is set up to detect the modulated optical signal from the LED module 20.
  • the optoelectronic sensor 16 can be positioned such that the optical signal output by the LED module 20 hits the optoelectronic sensor 16.
  • the optoelectronic sensor 16 can comprise a photodiode or another light sensor.
  • An output signal from the optoelectronic sensor 16 can be passed to the control device 14.
  • the converter communication device 15 can comprise a demodulator 17, which is set up to demodulate the modulated optical signal and to determine a data sequence which is encoded in the modulated optical signal.
  • the function of the demodulator 17 can be integrated in the control device 14.
  • An integrated semiconductor circuit can perform both the function of the control device 14 and the function of the demodulator 17.
  • the module communication device 20 For communication from the LED module 20 to the LED converter 10, the module communication device 20 comprises a transmitter for generating the modulated optical signal.
  • the transmitter may include an electro-optical element 28 for generating the modulated optical signal.
  • the electro-optical element 28 can be a light-emitting diode, which can be different from the plurality of light-emitting diodes 21.
  • the electro-optical element 28 can comprise an electro-optical modulator.
  • the LED module 20 may include a modulator 29 that is compatible with the electro-optical Element 28 is coupled or which is integrally formed with the electro-optical element 28.
  • the modulator 29 can be set up to convert information to be transmitted, which can be present as an analog value or as a digital signal sequence, into the modulated optical signal.
  • the function of the modulator 29 can be carried out by an integrated semiconductor circuit 24 of the LED module 20.
  • the modulation and / or demodulation can be done in different ways.
  • the converter communication device 15 and the module communication device 25 can be set up for amplitude modulation, frequency modulation, phase modulation or other modulation techniques.
  • the converter communication device 15 may be configured to process a signal that has been generated by amplitude shift keying, frequency shift keying, phase shift keying or other modulation techniques.
  • the module communication device 25 can be configured to generate the modulated optical signal in such a way that information to be transmitted is encoded by amplitude shift keying, frequency shift keying, phase shift keying or other modulation techniques.
  • the modulated optical signal can comprise wavelengths in the visible range, in the infrared range or in the ultraviolet range of the electromagnetic spectrum.
  • the module communication device 25 can be set up to generate a modulated optical signal depending on the information to be transmitted, which comprises a wavelength in the visible range, in the infrared range or in the ultraviolet range of the electromagnetic spectrum.
  • the modulated optical signal can be transmitted via a gap 30 between the converter communication device 15 and the module communication device 25.
  • the modulated optical signal can propagate in a gaseous medium, for example air, or can be carried in an optical conductor.
  • Different information can be transmitted from the LED module 20 to the LED converter 10 and implemented by the LED converter 10.
  • the LED module 20 can be configured to transmit information about an LED current for which the LED module 20 is designed in the modulated optical signal to the LED converter 10. This can take place, for example, at the start of operation before the at least one light-emitting diode 21 emits light.
  • An integrated semiconductor circuit 24 of the LED module 20 can provide non-volatile stored information about the LED module 20, for example information about the LED current for which the LED module 20 is designed, in order to transmit this in the modulated optical signal.
  • the LED module 20 can be configured to transmit information about an LED forward voltage of the LED module 20 in the modulated optical signal to the LED converter 10. This can take place, for example, at the start of operation before the at least one light-emitting diode 21 emits light.
  • the integrated semiconductor circuit 24 of the LED module 20 can provide non-volatile stored information about the LED module 20, for example information about the forward voltage of the at least one light-emitting diode 21, in order to transmit this in the modulated optical signal.
  • the LED module 20 can be configured to transmit information about an LED output of the LED module 20 in the modulated optical signal to the LED converter 10. This can take place, for example, at the start of operation before the at least one light-emitting diode 21 emits light.
  • the integrated semiconductor circuit 24 of the LED module 20 can provide non-volatile stored information about the LED module 20, for example information about the power of the at least one light-emitting diode 21, in order to transmit this in the modulated optical signal.
  • the LED module 20 can be configured to transmit color information of the LED module 20 in the modulated optical signal to the LED converter 10.
  • the integrated semiconductor circuit 24 of the LED module 20 can Provide non-volatile color information for transmission in the modulated optical signal.
  • the LED module 20 can be configured to transmit aging information from the LED module 20 in the modulated optical signal to the LED converter 10.
  • the integrated semiconductor circuit 24 of the LED module 20 can monitor the aging of the LED module 20 in order to transmit this in the modulated optical signal.
  • the LED module 20 can be set up to convert information acquired with a sensor 23 of the LED module 20 and to transmit it in the modulated optical signal to the LED converter 10.
  • the integrated semiconductor circuit 24 of the LED module 20 can monitor an output signal of the sensor 23 in order to transmit this in the modulated optical signal.
  • the sensor 23 can be a temperature sensor.
  • the LED converter 20 can demodulate the modulated optical signal. Operation of the LED converter 20 can be adjusted in response to the modulated optical signal.
  • the modulated optical signal contains information about the LED current for which the LED module 20 is designed, information about the forward voltage, information about the LED power, color information and / or aging information
  • a control variable can be dependent be adjusted by the modulated optical signal.
  • the control device 14 of the LED converter 10 can be set up for current regulation or voltage regulation.
  • the control device 14 can set a desired value of a control loop as a function of the modulated optical signal that is detected by the converter communication device 15.
  • the LED converter 10 can implement security mechanisms such as an automatic reduction of the Output current and / or switch off the lamp depending on the modulated optical signal.
  • the output current can be automatically reduced and / or the illuminant switched off depending on the detected LED current, the forward voltage or the LED power.
  • the system can also provide communication between multiple LED modules and / or LED converters.
  • Figure 2 is an illustration of a system 1 with an LED converter 10 and an LED module 20.
  • the converter communication device 15 comprises a transmitter for a further modulated optical signal in order to implement communication with the LED module 20.
  • the transmitter may include an electro-optical element 18 for generating the modulated optical signal.
  • the electro-optical element 18 can be a light-emitting diode.
  • the electro-optical element 18 can comprise an electro-optical modulator.
  • the converter communication device 15 can comprise a modulator 19 which is coupled to the electro-optical element 18 or which is formed integrally with the electro-optical element 18.
  • the modulator 19 can be set up to convert information to be transmitted, which can be in the form of an analog value or a digital signal sequence, into the further modulated optical signal.
  • the function of the modulator 19 can be carried out by an integrated semiconductor circuit of the control device 14.
  • the module communication device 25 comprises a receiver for the further modulated optical signal.
  • the receiver comprises an optoelectronic sensor 26.
  • the optoelectronic sensor 26 is set up to detect the further modulated optical signal from the LED converter 10.
  • the optoelectronic sensor 26 can be positioned such that the optical signal output by the LED converter 10 hits the optoelectronic sensor 26.
  • the optoelectronic sensor 26 can comprise a photodiode or another light sensor.
  • An output signal of the optoelectronic sensor 26 can be processed further by a demodulator 27 in order to demodulate the modulated optical signal and to determine a data sequence or an analog signal which is encoded in the modulated optical signal.
  • bidirectional communication between LED module 20 and LED converter 10 can be implemented in such a way that different communication methods are used for different communication directions. Communication from the LED module 20 to the LED converter 10 can take place using modulated optical signals, as described above. Communication from the LED converter 10 to the LED module 20 can take place in such a way that signals are modulated onto the energy supply and evaluated on the LED module 20.
  • the senor 26 can also be designed such that it also works as a transmitter. That is, the sensor 26 can be designed as a receiver and a transmitter at the same time.
  • the sensor can be designed as an LED in order to transmit optical signals modulated as a transmitter and to work in a so-called reverse operation as a photodiode as a receiver. In the so-called reverse mode, part of the modulated light or the optically modulated signal is received and the voltage drop at the sensor is measured and evaluated in order to obtain the information of the modulated optical signal to decrypt.
  • the system can also provide communication between multiple LED modules and / or LED converters.
  • FIG. 3 is a representation of a system 1 with an LED converter 10 and an LED module 20.
  • the module communication device 25 and the converter communication device 15 are set up in such a way that communication from the LED module 20 to the LED converter 10 is used a modulated optical signal can take place.
  • the transmitter and the receiver of the modulated optical signal are arranged at a distance from one another.
  • Various techniques can be used in the devices, methods and systems according to exemplary embodiments to ensure that a sufficiently high intensity component of the modulated optical signal can be detected at the receiver.
  • the LED converter 10 and the LED module 20 can be registered relative to one another in such a way that at least part of the intensity of the modulated optical signal emitted by the LED module 20 hits the receiver of the LED converter 10.
  • the LED module 20 and / or the LED converter 10 can comprise registration means for mechanical registration.
  • the arrangement of the LED converter 10 and the LED module 20 can be determined by suitable holding means such that at least part of the intensity of the modulated optical signal emitted by the LED module 20 hits the receiver of the LED converter 10 .
  • an optical conductor can connect the transmitter and the receiver of the modulated optical signal.
  • the modulated optical signal can propagate freely between the LED module 10 and the LED converter 20, can be deflected at least once or be guided in an optical conductor.
  • the system can also provide communication between multiple LED modules and / or LED converters.
  • FIG. 4 shows a system 1 according to an embodiment.
  • the system 1 includes an LED converter 10 and an LED module 20, as described with reference to FIG Figure 1 to Figure 3 can be described.
  • the LED module 20 comprises a circuit board 40.
  • a plurality of light-emitting diodes 21 are arranged on a first surface of the circuit board 40.
  • a transmitter 28 for the modulated optical signal is arranged on a second surface of the circuit board 40, which is different from the first surface.
  • Transmitter 28 may include a light emitting diode, an electro-optical modulator, or other electro-optical element.
  • the transmitter 28 can be arranged on that surface of the circuit board 40 which is opposite to the surface with the light-emitting diodes 21.
  • the LED converter 10 has a receiver 16 for the modulated optical signal that is emitted by the transmitter 28.
  • a light-sensitive surface of the receiver 16 is arranged on a housing 50 in such a way that the modulated optical signal can fall on it.
  • An arrangement of the receiver 16 relative to the transmitter 28 is fixed.
  • the LED module 20 can comprise a registration means 41, which determines the position of the LED module 20 relative to the LED converter 10 such that part of the intensity of the modulated optical signal emitted by the transmitter 28 is detected by the receiver 16 .
  • the LED converter 10 can have a registration means 51 so that the position of the receiver 16 relative to the transmitter 28 can be determined.
  • the LED module 20 can comprise a registration means 41, which determines the position of the LED module 20 relative to the LED converter 10 such that part of the intensity of the modulated optical signal emitted by the transmitter 28 is detected by the receiver 16 .
  • Corresponding registration means can be provided on the LED module 20 and the LED converter 10, which register the relative position between the Define LED module 20 and LED converter 10.
  • the LED converter 10 and the LED module 20 can be fixed in their relative position to one another such that an area over which the modulated optical signal is output, for example at the LED module 20, another area on which the modulated optical signal Signal received at the LED converter 10, for example, is opposite.
  • registration means 41, 51 which are matched to one another to be provided on the LED converter 10 and the LED module 20.
  • the registration means can also be designed such that they fix both the LED module 20 and the LED converter 10 in an LED lamp or another unit in such a way that part of the intensity of the modulated optical signal emitted by the transmitter 28 is detected by the receiver 16.
  • the system also works in the other direction or for bidirectional communication in both directions simultaneously.
  • FIG. 5 shows a system 1 according to an embodiment.
  • the system 1 includes an LED converter 10 and an LED module 20, as described with reference to FIG Figure 1 to Figure 3 can be described.
  • the LED module 20 comprises a circuit board 40.
  • a plurality of light-emitting diodes 21 are arranged on a first surface of the circuit board 40.
  • a transmitter 28 for the modulated optical signal is arranged on a second surface of the circuit board 40, which is different from the first surface.
  • Transmitter 28 may include a light emitting diode, an electro-optical modulator, or other electro-optical element.
  • the transmitter 28 can be arranged on that surface of the circuit board 40 which is opposite to the surface with the light-emitting diodes 21.
  • the LED converter 10 has a receiver 16 for the modulated optical signal that is emitted by the transmitter 28.
  • the modulated optical signal is transmitted in an optical conductor 49.
  • the optical conductor 49 can comprise an optical fiber or another optical fiber.
  • the transmitter 28 of the modulated optical signal on the LED module 20 can comprise a fastening section 42, which is configured to hold the optical conductor 49 in such a way that the modulated optical signal is coupled into the optical conductor 49.
  • the receiver 16 of the modulated optical signal on the LED converter 10 can comprise a fastening section 52, which is configured to hold the optical conductor 49 in such a way that the modulated optical signal couples out of the optical conductor 49 to an optoelectronic sensor of the receiver 16 becomes.
  • An arrangement with an optical conductor 49 for transmitting the modulated optical signal offers greater freedom in the arrangement of the LED converter 10 and the LED module 20.
  • the risk of incorrect installation is caused by the design of the fastening sections 42, 52, that of electrical connections are different, kept low.
  • FIG. 6 shows a system 1 according to an embodiment.
  • the system 1 includes an LED converter 10 and an LED module 20, as described with reference to FIG Figure 1 to Figure 3 can be described.
  • the LED module 20 comprises a circuit board 40.
  • a plurality of light-emitting diodes 21 are arranged on a first surface of the circuit board 40.
  • a transmitter 28 for the modulated optical signal is also arranged on the circuit board 40.
  • Transmitter 28 may include a light emitting diode.
  • the transmitter 28 can be one of the light-emitting diodes 21, which generate light, for example for room lighting, during use.
  • the modulated optical signal is preferably generated with a wavelength, a frequency or an amplitude that is not perceptible to the human eye.
  • the frequency can be chosen so high that the modulation is imperceptible due to the sluggishness of the human eye.
  • the LED converter 10 has a receiver 16 for the modulated optical signal that is emitted by the transmitter 28.
  • the LED converter 10 is arranged such that at least part of the intensity of the modulated optical signal emitted by the transmitter 28 hits the receiver 16.
  • the receiver 16 can be arranged laterally offset from the transmitter 28.
  • one or more optical deflection elements e.g. one or more mirrors may be used to direct the modulated optical signal from the transmitter 28 to the receiver 16.
  • the devices, methods and systems according to exemplary embodiments can be used for communication between an LED converter 10 and an LED module 20, which are combined in a luminaire.
  • FIG. 7 shows a system 1 according to an embodiment, which is designed as an LED lamp.
  • the system 1 includes an LED converter 10 and an LED module 20, as described with reference to FIG Figure 1 to Figure 3 can be described.
  • the LED converter 10 and the LED module 20 are installed in an LED lamp.
  • the LED lamp can have a base 61 and a translucent material 62.
  • the translucent material 62 can at least partially surround the LED module 20.
  • the LED converter 10 and the LED module 20 can be arranged such that a modulated optical signal output by a transmitter 28 of the LED module 20 is detected by a receiver 16 of the LED converter 10.
  • the relative arrangement between transmitter 27 and receiver 16 can be defined and / or an optical conductor 49 can be provided, as with reference to FIG Figure 4 until Figure 7 has been described.
  • Figure 8 10 is a flowchart of a method 70.
  • Method 70 may be performed by an LED module according to one embodiment.
  • the LED module can, for example, initially receive a low supply voltage and / or a low supply current with which the transmitter for the modulated optical signal can be operated before the at least one light-emitting diode 21 emits light.
  • At 72 it is checked whether a condition for transmitting information is fulfilled.
  • Various criteria can be used to trigger an information transfer.
  • information about an LED current and / or a forward voltage and / or an LED power and / or color information can be transmitted at each start of operation.
  • Information about an LED current and / or a forward voltage and / or an LED power and / or color information can also be transmitted only after a first start of operation after installation.
  • Information about an aging condition can be transmitted at every start of operation or selectively only if the corresponding information about the aging condition has changed.
  • Temperature information which is generated depending on an output signal of a temperature sensor, can be generated at time intervals, e.g. periodically. Alternatively or additionally, the temperature information can be selectively transmitted when the temperature reaches or exceeds a threshold value. The temperature information can be selectively transmitted when the temperature reaches or exceeds one of several threshold values. Alternatively, the information about the LED current and / or the forward voltage and / or the LED power can be transmitted if one of several threshold values has been reached or exceeded.
  • the information can also be transmitted in response to a request by the LED converter 10.
  • the request can be transmitted from the LED converter 10 to the LED module 20 via a supply line, via which the LED current from the LED module 20 is also received.
  • the operation of the LED module 20 can continue at 73.
  • the method may return to 72 for review.
  • a modulated optical signal can be generated at 74.
  • the modulated optical signal can transmit an analog value or at least one bit of digital information.
  • the modulated optical signal can be generated so that the information to be transmitted is encoded by amplitude modulation, frequency modulation, phase modulation or other modulation techniques.
  • the modulated optical signal can be generated in such a way that it has a wavelength in the visible region of the electromagnetic spectrum, in the infrared region of the electromagnetic spectrum or in the ultraviolet region of the has electromagnetic spectrum.
  • the method may return to 73 to continue operating the LED module 20.
  • Figure 9 10 is a flowchart of a method 80.
  • the method 80 may be performed by an LED converter 10 according to an embodiment.
  • the LED converter 10 receives a modulated optical signal.
  • the modulated optical signal can be received by a transmitter 28 of an LED module 20.
  • the received modulated optical signal is demodulated.
  • Information contained in the modulated optical signal can be determined by reading out an amplitude modulation, frequency modulation, phase modulation or other modulation technique.
  • the LED converter 10 can be controlled depending on the demodulated optical signal.
  • the control can take place in different ways in response to the modulated optical signal.
  • the modulated optical signal contains information about an LED current or a forward voltage or an LED power of the LED module 20
  • a control or regulation of a converter and / or a power factor correction circuit and / or further components of the LED converter 10 can be dependent on of the information received.
  • a setpoint of a control loop, which defines the output current of the LED converter 10 can be set as a function of the modulated optical signal if it contains information about the LED current of the LED module 20.
  • a strength of an output current of the LED converter 10 can be dependent on the aging information or color information can be set.
  • the modulated optical signal contains information that depends on a temperature detected on the LED module 20, one or more safety functions can be activated depending on this temperature information. For example, in order to protect against excessive temperatures in response to the modulated optical signal, an output current of the LED converter 10 can be reduced or the operation of the LED module 20 can be switched off completely if the information contained in the modulated optical signal indicates that damage to the LED module 20 threatens by temperature effects. Alternatively, the output current can be automatically reduced and / or the illuminant switched off depending on the detected LED current, the forward voltage or the LED power.
  • an LED converter 10 and an LED module 20 can be configured in such a way that an LED current is transmitted via supply lines, energy can also be transmitted to supply the at least one light-emitting diode 21 via a wireless interface.
  • Additional or alternative information can be transmitted between the LED module 20 and the LED converter 10.
  • information can be transmitted that depends on an output signal from a sensor 23 of the LED module 20.
  • An example of such information is a light intensity of a surface that is used for regulating the illuminance.
  • the integrated semiconductor circuit of an LED module 20 can be used as an application-specific special circuit (ASIC, “Application Specific Integrated Circuit”), as a controller, as a microcontroller, as a processor, be designed as a microprocessor or as another chip or as a combination of such components.
  • ASIC Application-specific special circuit
  • controller as a microcontroller
  • processor be designed as a microprocessor or as another chip or as a combination of such components.
  • An LED converter 10 and an LED module 20 can be set up in such a way that mechanical registration elements such as projections and / or recesses define a unique position in which the LED module 20 can be fastened to the LED converter 10.
  • LED modules, LED converters, methods and systems according to exemplary embodiments facilitate the installation of lamps with at least one light-emitting diode if communication between the LED module and the LED converter is provided.

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Description

Die Erfindung betrifft Leuchtmittel und Betriebsgeräte für Leuchtmittel. Die Erfindung betrifft insbesondere Vorrichtungen und Verfahren zur Kommunikation zwischen einem LED-Modul und einem LED-Konverter.
Nichtkonventionelle Leuchtmittel, wie Leuchtmittel mit einer Leuchtdiode (LED) oder mit mehreren LEDs, gewinnen zunehmend an Bedeutung. LED-Module sind Beispiele für derartige Leuchtmittel. Zum Betreiben eines Leuchtmittels mit wenigstens einer Leuchtdiode wird ein LED-Konverter verwendet. Zur Kommunikation zwischen LED-Modul und LED-Konverter werden herkömmlich beispielsweise elektrisch leitende Verbindungen verwendet. Die hierfür benötigten Anschlüsse erhöhen das Risiko einer fehlerhaften Installation. Das Patent WO 2014/141002 zeigt eine Kommunikation zwischen einem LED-Modul und einem LED-Konverter.The invention relates to lamps and operating devices for lamps. The invention relates in particular to devices and methods for communication between an LED module and an LED converter.
Non-conventional lamps, such as lamps with a light emitting diode (LED) or with several LEDs, are becoming increasingly important. LED modules are examples of such lamps. An LED converter is used to operate a light source with at least one light-emitting diode. For communication between the LED module and LED converter, for example, electrically conductive connections are conventionally used. The connections required for this increase the risk of incorrect installation. The patent WO 2014/141002 shows a communication between an LED module and an LED converter.

Es besteht ein Bedarf an Vorrichtungen, Systemen und Verfahren, die eine Kommunikation zwischen einem LED-Modul und einem LED-Konverter ermöglichen. Es besteht ein Bedarf an derartigen Vorrichtungen, Systemen und Verfahren, die ein Risiko einer fehlerhaften Installation gering halten.
Nach Ausführungsbeispielen wird vorgesehen, dass zur Kommunikation zwischen einem LED-Modul und einem LED-Konverter ein moduliertes optisches Signal erzeugt und übertragen wird.
Das modulierte optische Signal kann von dem LED-Modul zu dem LED-Konverter übertragen werden, um eine unidirektionale Kommunikation von dem LED-Modul zu dem LED-Konverter zu verwirklichen. Das modulierte optische Signal kann von dem LED-Konverter zu dem LED-Modul übertragen werden, um eine unidirektionale Kommunikation von dem LED-Konverter zu dem LED-Modul zu verwirklichen. Es können modulierte optische Signale bidirektional zwischen dem LED-Modul und dem LED-Konverter übertragen werden, umThere is a need for devices, systems and methods that enable communication between an LED module and an LED converter. There is a need for such devices, systems and methods that minimize the risk of incorrect installation.
According to exemplary embodiments, it is provided that a modulated optical signal is generated and transmitted for communication between an LED module and an LED converter.
The modulated optical signal can be transmitted from the LED module to the LED converter in order to implement unidirectional communication from the LED module to the LED converter. The modulated optical signal can be transmitted from the LED converter to the LED module in order to realize unidirectional communication from the LED converter to the LED module. Modulated optical signals can be transmitted bidirectionally between the LED module and the LED converter

eine bidirektionale Kommunikation zwischen dem LED-Modul und dem LED-Konverter zu verwirklichen.to realize a bidirectional communication between the LED module and the LED converter.

Ein Sender des modulierten optischen Signals kann an dem LED-Modul oder dem LED-Konverter vorgesehen sein. Ein Empfänger des modulierten optischen Signals kann an dem andere von dem LED-Modul oder dem LED-Konverter vorgesehen sein. Das modulierte optische Signal kann zwischen dem LED-Modul und dem LED-Konverter durch ein gasförmiges Ausbreitungsmedium, beispielsweise Luft, oder durch einen optischen Leiter übertragen werden.A transmitter of the modulated optical signal can be provided on the LED module or the LED converter. One receiver of the modulated optical signal can be provided on the other of the LED module or the LED converter. The modulated optical signal can be transmitted between the LED module and the LED converter through a gaseous propagation medium, for example air, or through an optical conductor.

Durch die Verwendung eines modulierten optischen Signals zur Kommunikation zwischen dem LED-Modul und dem LED-Konverter wird die Anzahl benötigter drahtgebundener Verbindungen zwischen dem LED-Modul und dem LED-Konverter verringert. Das Risiko einer fehlerhaften Installation wird verringert.By using a modulated optical signal for communication between the LED module and the LED converter, the number of required wired connections between the LED module and the LED converter is reduced. The risk of incorrect installation is reduced.

Ein Verfahren zur Kommunikation zwischen einem LED-Modul und einem LED-Konverter umfasst ein Erzeugen eines modulierten optischen Signals und ein Übertragen des modulierten optischen Signals zwischen dem LED-Modul und dem LED-Konverter.A method for communication between an LED module and an LED converter comprises generating a modulated optical signal and transmitting the modulated optical signal between the LED module and the LED converter.

Mit dem modulierten optischen Signal kann eine das LED-Modul betreffende Information übertragen werden.With the modulated optical signal, information relating to the LED module can be transmitted.

Die das LED-Modul betreffende Information kann von einer Steuereinrichtung des LED-Konverters umgesetzt werden, um den LED-Konverter abhängig von der das LED-Modul betreffende Information zu steuern.The information relating to the LED module can be implemented by a control device of the LED converter in order to control the LED converter depending on the information relating to the LED module.

Das Verfahren kann ein Demodulieren des modulierten optischen Signals mit einem Demodulator des LED- Konverters umfassen.The method may include demodulating the modulated optical signal with a demodulator of the LED converter.

Die das LED-Modul betreffende Information kann ausgewählt sein aus einer Gruppe bestehend aus: einem LED-Strom des LED-Moduls, einer Vorwärtsspannung des LED-Moduls, einer LED-Leistung des LED-Moduls, einer an dem LED-Modul erfassten Temperatur, einer Alterungsinformation des LED-Moduls und einer Farbinformation des LED-Moduls.The information relating to the LED module can be selected from a group consisting of: an LED current of the LED module, a forward voltage of the LED module, an LED power of the LED module, a temperature recorded on the LED module, aging information of the LED module and color information of the LED module.

Wenigstens eine Schaltung des LED-Konverters kann abhängig von dem modulierten optischen Signal, das an dem LED-Konverter empfangen wird, gesteuert werden. Beispielsweise kann ein Sollwert einer Regelschleife, mit der ein Ausgangsstrom des LED-Konverters geregelt wird, abhängig von dem modulierten optischen Signal eingestellt werden.At least one circuit of the LED converter can be controlled depending on the modulated optical signal that is received at the LED converter. For example, a setpoint of a control loop, with which an output current of the LED converter is controlled, can be set depending on the modulated optical signal.

Ein Sender des modulierten optischen Signals kann beabstandet von einem Empfänger des modulierten optischen Signals angeordnet sein. Der Sender und der Empfänger können so angeordnet sein, dass die nicht in einem gemeinsamen Gehäuse integriert sind.A transmitter of the modulated optical signal can be arranged at a distance from a receiver of the modulated optical signal. The transmitter and the receiver can be arranged so that they are not integrated in a common housing.

Eine Anordnung des Senders zum Erzeugen des modulierten optischen Signals relativ zu dem Empfänger zum Empfangen des modulierten optischen Signals kann durch mechanische Registrierungsmittel festgelegt werden.An arrangement of the transmitter for generating the modulated optical signal relative to the receiver for receiving the modulated optical signal can be determined by mechanical registration means.

Das modulierte optische Signal kann von dem Sender zu dem Empfänger frei propagieren, beispielsweise durch ein gasförmiges Medium.The modulated optical signal can propagate freely from the transmitter to the receiver, for example through a gaseous medium.

Das modulierte optische Signal kann in einem optischen Leiter übertragen werden.The modulated optical signal can be transmitted in an optical conductor.

Das LED-Modul kann eine erste Seite aufweisen, an der eine Mehrzahl von Leuchtdioden zum Erzeugen von Licht angeordnet ist. Der Sender zum Erzeugen des modulierten optischen Signals kann an einer zweiten Seite des LED-Moduls angeordnet sein, die von der ersten Seite verschieden ist.The LED module can have a first side, on which a plurality of light-emitting diodes for generating light is arranged. The transmitter for generating the modulated optical signal can be arranged on a second side of the LED module, which is different from the first side.

Das modulierte optische Signal kann an einer Seite des LED-Moduls abgegeben werden, an der eine Mehrzahl von Leuchtdioden zum Erzeugen von Licht angeordnet ist.The modulated optical signal can be output on one side of the LED module on which a plurality of light-emitting diodes for generating light is arranged.

Das modulierte optische Signal kann von einer der Leuchtdioden abgegeben werden, die Nutzlicht erzeugen.The modulated optical signal can be emitted by one of the light-emitting diodes that generate useful light.

Das modulierte optische Signal kann von dem LED-Konverter zu dem LED-Modul übertragen werden. Eine integrierte Halbleiterschaltung des LED-Moduls kann abhängig von dem empfangenen modulierten optischen Signal eine Steuer- oder Regelfunktion ausführen.The modulated optical signal can be transmitted from the LED converter to the LED module. An integrated semiconductor circuit of the LED module can perform a control or regulating function depending on the received modulated optical signal.

Das LED-Modul kann eine erste Seite aufweisen, an der eine Mehrzahl von Leuchtdioden zum Erzeugen von Licht angeordnet ist. Der Empfänger zum Empfangen des modulierten optischen Signals kann an einer zweiten Seite des LED-Moduls angeordnet sein, die von der ersten Seite verschieden ist.The LED module can have a first side, on which a plurality of light-emitting diodes for generating light is arranged. The receiver for receiving the modulated optical signal can be arranged on a second side of the LED module, which is different from the first side.

Ein LED-Modul nach einem Ausführungsbeispiel ist für eine Kopplung mit einem LED-Konverter eingerichtet und umfasst eine Modul-Kommunikationseinrichtung zur Kommunikation mit dem LED-Konverter unter Verwendung eines modulierten optischen Signals.An LED module according to one exemplary embodiment is set up for coupling to an LED converter and comprises a module communication device for communication with the LED converter using a modulated optical signal.

Die Modul-Kommunikationseinrichtung kann eingerichtet sein, um das modulierte optische Signal abhängig von einer das LED-Modul betreffenden Information zu erzeugen.The module communication device can be set up to generate the modulated optical signal as a function of information relating to the LED module.

Die Modul-Kommunikationseinrichtung kann einen Sender für das modulierte optische Signal umfassen. Der Sender kann wenigstens eine Leuchtdiode umfassen.The module communication device can comprise a transmitter for the modulated optical signal. The transmitter can comprise at least one light emitting diode.

Die Modul-Kommunikationseinrichtung kann einen Modulator umfassen, der eingerichtet ist, um Daten in das modulierte optische Signal zu kodieren.The module communication device can comprise a modulator that is set up to encode data into the modulated optical signal.

Die das LED-Modul betreffende Information kann ausgewählt sein aus einer Gruppe bestehend aus: einem LED-Strom des LED-Moduls, einer an dem LED-Modul erfassten Temperatur, einer Alterungsinformation des LED-Moduls und einer Farbinformation des LED-Moduls.The information relating to the LED module can be selected from a group consisting of: an LED current of the LED module, a temperature recorded on the LED module, aging information of the LED module and color information of the LED module.

Die Modul-Kommunikationseinrichtung kann einen Sender zum Erzeugen des modulierten optischen Signals umfassen.The module communication device can comprise a transmitter for generating the modulated optical signal.

Das LED-Modul eine erste Seite aufweist, an der eine Mehrzahl von Leuchtdioden zum Erzeugen von Licht angeordnet ist. Der Sender kann an einer zweiten Seite des LED-Moduls angeordnet sein, die von der ersten Seite verschieden ist.The LED module has a first side on which a plurality of light-emitting diodes for generating light is arranged. The transmitter can be arranged on a second side of the LED module, which is different from the first side.

Die Modul-Kommunikationseinrichtung kann eingerichtet sein, um das modulierte optische Signal an einer Seite des LED-Moduls abzugeben, an der eine Mehrzahl von Leuchtdioden zum Erzeugen von Licht angeordnet ist.The module communication device can be set up to emit the modulated optical signal on one side of the LED module on which a plurality of light-emitting diodes for generating light is arranged.

Das LED-Modul kann ein Registrierungsmittel zur mechanischen Registrierung der Modul-Kommunikationseinrichtung relativ zu einer Konverter-Kommunikationseinrichtung des LED-Konverters umfassen.The LED module can comprise a registration means for the mechanical registration of the module communication device relative to a converter communication device of the LED converter.

Die Modul-Kommunikationseinrichtung kann für eine Kopplung mit einem optischen Leiter eingerichtet sein.The module communication device can be set up for coupling to an optical conductor.

Ein LED-Konverter nach einem Ausführungsbeispiel ist für eine Kopplung mit einem LED-Modul eingerichtet und umfasst eine Konverter-Kommunikationseinrichtung zur Kommunikation mit dem LED-Modul unter Verwendung eines modulierten optischen Signals.An LED converter according to one exemplary embodiment is set up for coupling to an LED module and comprises a converter communication device for communicating with the LED module using a modulated optical signal.

Die Konverter-Kommunikationseinrichtung kann einen Demodulator zum Demodulieren des modulierten optischen Signals umfassen.The converter communication device can comprise a demodulator for demodulating the modulated optical signal.

Der Demodulator kann eingerichtet sein, um eine das LED-Modul betreffende Information aus dem modulierten optischen Signal zu ermitteln, wobei die das das LED-Modul betreffende Information ausgewählt ist aus einer Gruppe bestehend aus: einem LED-Strom des LED-Moduls, einer Vorwärtsspannung des LED-Moduls, einer LED-Leistung des LED-Moduls, einer an dem LED-Modul erfassten Temperatur, einer Alterungsinformation des LED-Moduls und einer Farbinformation des LED-Moduls.The demodulator can be set up to determine information relating to the LED module from the modulated optical signal, the information relating to the LED module being selected from a group consisting of: an LED current of the LED module, a forward voltage of LED module, an LED power of the LED module, a temperature detected on the LED module, aging information of the LED module and color information of the LED module.

Der LED-Konverter kann eine Wandlerschaltung und eine Steuereinrichtung zum Steuern der Wandlerschaltung umfassen.The LED converter can comprise a converter circuit and a control device for controlling the converter circuit.

Die Steuereinrichtung kann eingerichtet sein, um die Wandlerschaltung abhängig von dem modulierten optischen Signal zu steuern.The control device can be set up to control the converter circuit as a function of the modulated optical signal.

Der LED-Konverter kann Registrierungsmittel zur mechanischen Registrierung der Konverter-Kommunikationseinrichtung relativ zu einer Modul-Kommunikationseinrichtung des LED-Moduls umfassen.The LED converter can comprise registration means for mechanical registration of the converter communication device relative to a module communication device of the LED module.

Die Konverter-Kommunikationseinrichtung kann für eine Kopplung mit einem optischen Leiter eingerichtet sein.The converter communication device can be set up for coupling to an optical conductor.

Ein System nach einem Ausführungsbeispiel umfasst ein LED-Modul nach einem Ausführungsbeispiel und einen LED-Konverter nach einem Ausführungsbeispiel.A system according to an embodiment includes an LED module according to an embodiment and an LED converter according to an embodiment.

Der LED-Konverter und das LED-Modul können in eine LED-Lampe integriert sein.The LED converter and the LED module can be integrated in an LED lamp.

Bei den Verfahren, Vorrichtungen und Systemen nach Ausführungsbeispielen kann das modulierte optische Signal eine Wellenlänge im sichtbaren Bereich des elektromagnetischen Spektrums, im Infrarotbereich des elektromagnetischen Spektrums oder im Ultraviolettbereich des elektromagnetischen Spektrums aufweisen.In the methods, devices and systems according to exemplary embodiments, the modulated optical signal can have a wavelength in the visible range of the electromagnetic spectrum, in the infrared range of the electromagnetic spectrum or in the ultraviolet range of the electromagnetic spectrum.

Nach Ausführungsbeispielen der Erfindung kann eine unidirektionale oder bidirektionale Kommunikation zwischen dem LED-Konverter und dem LED-Modul mit einem modulierten optischen Signal ausgeführt werden. Es ist nicht erforderlich, Leitungen zur Kommunikation an dem LED-Konverter und dem LED-Modul anzubringen.According to exemplary embodiments of the invention, unidirectional or bidirectional communication between the LED converter and the LED module can be carried out with a modulated optical signal. It is not necessary, Attach lines for communication to the LED converter and the LED module.

Die Erfindung betrifft ein Verfahren zur Kommunikation zwischen einem LED-Modul und einem LED-Konverter nach Anspruch 1, ein LED-Modul nach Anspruch 6 und einen LED-Konverter nach Anspruch 13. Die abhängigen Ansprüche bilden weitere Aspekte der Erfindung ab.The invention relates to a method for communication between an LED module and an LED converter according to claim 1, an LED module according to claim 6 and an LED converter according to claim 13. The dependent claims represent further aspects of the invention.

Die Erfindung wird nachfolgend unter Bezugnahme auf die beigefügte Zeichnung anhand bevorzugter Ausführungsbeispiele näher erläutert.

  • Figur 1 zeigt ein System mit einem LED-Konverter und einem LED-Modul nach einem Ausführungsbeispiel.
  • Figur 2 zeigt ein System mit einem LED-Konverter und einem LED-Modul nach einem Ausführungsbeispiel.
  • Figur 3 zeigt ein System mit einem LED-Konverter und einem LED-Modul nach einem Ausführungsbeispiel.
  • Figur 4 zeigt ein System mit einem LED-Konverter und einem LED-Modul nach einem Ausführungsbeispiel.
  • Figur 5 zeigt ein System mit einem LED-Konverter und einem LED-Modul nach einem Ausführungsbeispiel.
  • Figur 6 zeigt ein System mit einem LED-Konverter und einem LED-Modul nach einem Ausführungsbeispiel.
  • Figur 7 zeigt ein System mit einem LED-Konverter und einem LED-Modul nach einem Ausführungsbeispiel.
  • Figur 8 ist ein Flussdiagramm eines Verfahrens, das von einem LED-Modul nach einem Ausführungsbeispiel ausgeführt werden kann.
  • Figur 9 ist ein Flussdiagramm eines Verfahrens, das von einem LED-Modul nach einem Ausführungsbeispiel ausgeführt werden kann.
The invention is explained in more detail below with reference to the accompanying drawing using preferred exemplary embodiments.
  • Figure 1 shows a system with an LED converter and an LED module according to an embodiment.
  • Figure 2 shows a system with an LED converter and an LED module according to an embodiment.
  • Figure 3 shows a system with an LED converter and an LED module according to an embodiment.
  • Figure 4 shows a system with an LED converter and an LED module according to an embodiment.
  • Figure 5 shows a system with an LED converter and an LED module according to an embodiment.
  • Figure 6 shows a system with an LED converter and an LED module according to an embodiment.
  • Figure 7 shows a system with an LED converter and an LED module according to an embodiment.
  • Figure 8 10 is a flow diagram of a method that can be performed by an LED module according to an embodiment.
  • Figure 9 10 is a flow diagram of a method that can be performed by an LED module according to an embodiment.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen unter Bezugnahme auf die Figuren näher beschrieben, in denen identische Bezugszeichen identische oder korrespondierende Elemente repräsentieren. Die Merkmale verschiedener Ausführungsbeispiele können miteinander kombiniert werden, sofern dies in der Beschreibung nicht ausdrücklich ausgeschlossen wird. Auch wenn einige Ausführungsbeispiele im Kontext spezifischer Anwendungen näher beschrieben werden, sind die Ausführungsbeispiele nicht auf diese Anwendungen beschränkt.The invention is described in more detail below on the basis of exemplary embodiments with reference to the figures, in which identical reference numerals represent identical or corresponding elements. The features of different exemplary embodiments can be combined with one another, unless this is expressly excluded in the description. Even if some exemplary embodiments are described in more detail in the context of specific applications, the exemplary embodiments are not restricted to these applications.

Figur 1 zeigt ein System 1, bei dem ein LED-Konverter 10 nach einem Ausführungsbeispiel ein LED-Modul 20 nach einem Ausführungsbeispiel mit Energie versorgt. Das Leuchtmittel kann eine Leuchtdiode (LED) oder mehrere LEDs 21 umfassen. Die LEDs 21 können anorganische oder organische LEDs sein. Der LED-Konverter 10 kann optional mit einem Bus 3 oder einem Drahtloskommunikationssystem verbunden sein, um Dimmbefehle oder Befehle einer Farbsteuerung zu empfangen und/oder Statusmeldungen auszugeben. Figure 1 shows a system 1, in which an LED converter 10 according to an embodiment supplies an LED module 20 according to an embodiment with energy. The illuminant can comprise a light emitting diode (LED) or a plurality of LEDs 21. The LEDs 21 can be inorganic or organic LEDs. The LED converter 10 can optionally be connected to a bus 3 or a wireless communication system in order to receive dimming commands or commands from a color control and / or to output status messages.

Der LED-Konverter 10 ist im Betrieb eingangsseitig mit einer Versorgungsspannungsquelle 2, beispielsweise einer Netzspannung, gekoppelt. Der LED-Konverter 10 kann einen Gleichrichter und eine Leistungsfaktorkorrekturschaltung 11 umfassen. Der LED-Konverter 10 kann wenigstens eine Wandlerschaltung 12 umfassen. Die Wandlerschaltung 12 kann ein DC/DC-Wandler sein, der wenigstens einen steuerbaren Schalter 13 umfasst.During operation, the LED converter 10 is coupled on the input side to a supply voltage source 2, for example a mains voltage. The LED converter 10 may include a rectifier and a power factor correction circuit 11. The LED converter 10 can comprise at least one converter circuit 12. The converter circuit 12 can be a DC / DC converter, which comprises at least one controllable switch 13.

Eine Steuereinrichtung 14 des LED-Konverters 10 kann eine oder mehrere integrierte Halbleiterschaltungen umfassen. Die Steuereinrichtung 14 kann eingerichtet sein, um den Betrieb des LED-Konverters 10 zu steuern. Die Steuereinrichtung 14 kann eingerichtet sein, um wenigstens einen steuerbaren Schalter 13 der Wandlerschaltung 12 getaktet zu schalten. Die Steuereinrichtung 14 kann beispielsweise eingerichtet sein, um einen Ausgangsstrom des LED-Konverters 10 und/oder eine Ausgangsspannung des LED-Konverters 10 und/oder eine Ausgangsleistung des LED-Konverters 10 zu steuern oder zu regeln und dazu den wenigstens einen steuerbaren Schalter 13 der Wandlerschaltung 12 anzusteuern. Die Steuereinrichtung 14 kann als anwendungsspezifische Spezialschaltung (ASIC, "Application Specific Integrated Circuit"), als Controller, als Mikrocontroller, als Prozessor, als Mikroprozessor oder als anderer Chip oder als Kombination derartiger Einheiten ausgestaltet sein.A control device 14 of the LED converter 10 can comprise one or more integrated semiconductor circuits. The control device 14 can be set up to control the operation of the LED converter 10. The control device 14 can be set up to switch at least one controllable switch 13 of the converter circuit 12 in a clocked manner. The control device 14 can, for example, be set up to control or regulate an output current of the LED converter 10 and / or an output voltage of the LED converter 10 and / or an output power of the LED converter 10 and for this purpose the at least one controllable switch 13 of the Converter circuit 12 to control. The control device 14 can be designed as an application-specific special circuit (ASIC, “Application Specific Integrated Circuit”), as a controller, as a microcontroller, as a processor, as a microprocessor or as another chip or as a combination of such units.

Wie noch ausführlicher beschrieben wird, sind der LED-Konverter 10 und das LED-Modul 20 für eine Kommunikation unter Verwendung optischer Signale eingerichtet. Die Kommunikation kann unidirektional oder bidirektional sein. Falls wenigstens eine Kommunikation vom LED-Modul 20 zum LED-Konverter 10 erfolgt, kann die Steuereinrichtung 14 eingerichtet sein, um abhängig von einem modulierten optischen Signal, das von dem LED-Modul 20 an dem LED-Konverter 10 empfangen wird, eine Steuerung oder Regelung des LED-Konverters 10 auszuführen.As will be described in more detail, the LED converter 10 and the LED module 20 are set up for communication using optical signals. Communication can be unidirectional or bidirectional. If at least one communication takes place from the LED module 20 to the LED converter 10, the control device 14 can be configured to control or dependent on a modulated optical signal that is received by the LED module 20 at the LED converter 10 Control of the LED converter 10 to perform.

Das LED-Modul 20 ist eingerichtet, um Energie zum Betreiben der wenigstens einen Leuchtdiode 21 von dem LED-Konverter 10 zu empfangen. Dazu kann das LED-Modul 20 einen Eingang aufweisen, der mit einem Ausgang des LED-Konverters 10 elektrisch leitend verbunden ist. Alternativ oder zusätzlich können das LED-Modul 20 und der LED-Konverter 10 für eine drahtlose Energieübertragung eingerichtet sein. Dazu kann der LED-Konverter 10 eine Antenne zur drahtlosen Energieübertragung aufweisen. Das LED-Modul 20 kann eine weitere Antenne aufweisen, um die drahtlos übertragene Energie zu empfangen.The LED module 20 is set up to receive energy for operating the at least one light-emitting diode 21 from the LED converter 10. For this purpose, the LED module 20 can have an input which is electrically conductively connected to an output of the LED converter 10. Alternatively or additionally, the LED module 20 and the LED converter 10 can be set up for wireless energy transmission. For this purpose, the LED converter 10 can have an antenna for wireless energy transmission. The LED module 20 can have a further antenna in order to receive the wirelessly transmitted energy.

Das LED-Modul 20 kann eine Gleichrichterschaltung 22 oder eine Treiberschaltung 22 umfassen, die zwischen den Eingang und die wenigstens eine Leuchtdiode 22 geschaltet ist.The LED module 20 can comprise a rectifier circuit 22 or a driver circuit 22 which is connected between the input and the at least one light-emitting diode 22.

Zur Kommunikation zwischen dem LED-Konverter 10 und dem LED-Modul 20 kann ein moduliertes optisches Signal von einem von dem LED-Konverter 10 und dem LED-Modul 20 erzeugt und von dem anderen von dem LED-Konverter 10 und dem LED-Modul 20 empfangen werden.For communication between the LED converter 10 and the LED module 20, a modulated optical signal can be generated by one of the LED converter 10 and the LED module 20 and by the other of the LED converter 10 and the LED module 20 be received.

Zur Kommunikation mit dem LED-Modul 20 weist der LED-Konverter 10 eine Konverter-Kommunikationseinrichtung 15 auf. Die Konverter-Kommunikationseinrichtung 15 kann einen Empfänger für das modulierte optische Signal und/oder einen Sender für das modulierte optische Signal umfassen.For communication with the LED module 20, the LED converter 10 has a converter communication device 15. The converter communication device 15 can comprise a receiver for the modulated optical signal and / or a transmitter for the modulated optical signal.

Für eine Kommunikation vom LED-Modul 20 zum LED-Konverter 10 umfasst die Konverter-Kommunikationseinrichtung 15 einen optoelektronischen Sensor 16. Der optoelektronische Sensor 16 ist eingerichtet, um das modulierte optische Signal von dem LED-Modul 20 zu erfassen. Dazu kann der optoelektronische Sensor 16 so positioniert sein, dass das von dem LED-Modul 20 ausgegebene optische Signal auf den optoelektronischen Sensor 16 trifft. Der optoelektronische Sensor 16 kann eine Fotodiode oder einen anderen Lichtsensor umfassen.For communication from the LED module 20 to the LED converter 10, the converter communication device 15 comprises an optoelectronic sensor 16. The optoelectronic sensor 16 is set up to detect the modulated optical signal from the LED module 20. For this purpose, the optoelectronic sensor 16 can be positioned such that the optical signal output by the LED module 20 hits the optoelectronic sensor 16. The optoelectronic sensor 16 can comprise a photodiode or another light sensor.

Ein Ausgangssignal des optoelektronischen Sensors 16 kann zu der Steuereinrichtung 14 geführt werden. Optional kann die Konverter-Kommunikationseinrichtung 15 einen Demodulator 17 umfassen, der eingerichtet ist, um das modulierte optische Signal zu demodulieren und eine Datenfolge zu ermitteln, die in dem modulierten optischen Signal kodiert ist. Die Funktion des Demodulators 17 kann in die Steuereinrichtung 14 integriert sein. Eine integrierte Halbleiterschaltung kann sowohl die Funktion der Steuereinrichtung 14 als auch die Funktion des Demodulators 17 ausführen.An output signal from the optoelectronic sensor 16 can be passed to the control device 14. Optionally, the converter communication device 15 can comprise a demodulator 17, which is set up to demodulate the modulated optical signal and to determine a data sequence which is encoded in the modulated optical signal. The function of the demodulator 17 can be integrated in the control device 14. An integrated semiconductor circuit can perform both the function of the control device 14 and the function of the demodulator 17.

Für eine Kommunikation vom LED-Modul 20 zum LED-Konverter 10 umfasst die Modul-Kommunikationseinrichtung 20 einen Sender zum Erzeugen des modulierten optischen Signals. Der Sender kann ein elektrooptisches Element 28 zum Erzeugen des modulierten optischen Signals umfassen. Das elektrooptische Element 28 kann eine Leuchtdiode sein, die von der Mehrzahl von Leuchtdioden 21 verschieden sein kann. Das elektrooptische Element 28 kann einen elektrooptischen Modulator umfassen.For communication from the LED module 20 to the LED converter 10, the module communication device 20 comprises a transmitter for generating the modulated optical signal. The transmitter may include an electro-optical element 28 for generating the modulated optical signal. The electro-optical element 28 can be a light-emitting diode, which can be different from the plurality of light-emitting diodes 21. The electro-optical element 28 can comprise an electro-optical modulator.

Das LED-Modul 20 kann einen Modulator 29 umfassen, der mit dem elektrooptischen Element 28 gekoppelt ist oder der integral mit dem elektrooptischen Element 28 ausgebildet ist. Der Modulator 29 kann eingerichtet sein, um zu übertragende Information, die als analoger Wert oder als digitale Signalfolge vorliegen kann, in das modulierte optische Signal umzusetzen. Die Funktion des Modulators 29 kann von einer integrierten Halbleiterschaltung 24 des LED-Moduls 20 ausgeführt werden.The LED module 20 may include a modulator 29 that is compatible with the electro-optical Element 28 is coupled or which is integrally formed with the electro-optical element 28. The modulator 29 can be set up to convert information to be transmitted, which can be present as an analog value or as a digital signal sequence, into the modulated optical signal. The function of the modulator 29 can be carried out by an integrated semiconductor circuit 24 of the LED module 20.

Die Modulation und/oder Demodulation kann auf unterschiedliche Weisen erfolgen. Die Konverter-Kommunikationseinrichtung 15 und die Modul-Kommunikationseinrichtung 25 können für eine Amplitudenmodulation, eine Frequenzmodulation, eine Phasenmodulation oder andere Modulationstechniken eingerichtet sein. Die Konverter-Kommunikationseinrichtung 15 kann eingerichtet sein, um ein Signal zu verarbeiten, das durch Amplitudenumtastung, Frequenzumtastung, Phasenumtastung oder andere Modulationstechniken erzeugt wurde. Die Modul-Kommunikationseinrichtung 25 kann eingerichtet sein, um das modulierte optische Signal so zu erzeugen, dass durch Amplitudenumtastung, Frequenzumtastung, Phasenumtastung oder andere Modulationstechniken zu übertragende Information kodiert wird.The modulation and / or demodulation can be done in different ways. The converter communication device 15 and the module communication device 25 can be set up for amplitude modulation, frequency modulation, phase modulation or other modulation techniques. The converter communication device 15 may be configured to process a signal that has been generated by amplitude shift keying, frequency shift keying, phase shift keying or other modulation techniques. The module communication device 25 can be configured to generate the modulated optical signal in such a way that information to be transmitted is encoded by amplitude shift keying, frequency shift keying, phase shift keying or other modulation techniques.

Das modulierte optische Signal kann Wellenlängen im sichtbaren Bereich, im Infrarotbereich oder im Ultraviolettbereich des elektromagnetischen Spektrums umfassen. Entsprechend kann die Modul-Kommunikationseinrichtung 25 eingerichtet sein, um abhängig von zu übertragender Information ein moduliertes optisches Signal zu erzeugen, das eine Wellenlänge im sichtbaren Bereich, im Infrarotbereich oder im Ultraviolettbereich des elektromagnetischen Spektrums umfasst.The modulated optical signal can comprise wavelengths in the visible range, in the infrared range or in the ultraviolet range of the electromagnetic spectrum. Correspondingly, the module communication device 25 can be set up to generate a modulated optical signal depending on the information to be transmitted, which comprises a wavelength in the visible range, in the infrared range or in the ultraviolet range of the electromagnetic spectrum.

Das modulierte optische Signal kann über einen Spalt 30 zwischen der Konverter-Kommunikationseinrichtung 15 und der Modul-Kommunikationseinrichtung 25 übertragen werden. Das modulierte optische Signal kann dabei in einem gasförmigen Medium, beispielsweise Luft, propagieren oder kann in einem optischen Leiter geführt werden.The modulated optical signal can be transmitted via a gap 30 between the converter communication device 15 and the module communication device 25. The modulated optical signal can propagate in a gaseous medium, for example air, or can be carried in an optical conductor.

Unterschiedliche Information kann von dem LED-Modul 20 zu dem LED-Konverter 10 übertragen und durch den LED-Konverter 10 umgesetzt werden.Different information can be transmitted from the LED module 20 to the LED converter 10 and implemented by the LED converter 10.

Das LED-Modul 20 kann eingerichtet sein, um Information über einen LED-Strom, für den das LED-Modul 20 ausgelegt ist, in dem modulierten optischen Signal an den LED-Konverter 10 zu übertragen. Dies kann beispielsweise bei einem Betriebsstart erfolgen, bevor die wenigstens eine Leuchtdiode 21 Licht abgibt. Eine integrierte Halbleiterschaltung 24 des LED-Moduls 20 kann nichtflüchtig gespeicherte Information über das LED-Modul 20, beispielsweise Information über den LED-Strom, für den das LED-Modul 20 ausgelegt ist, bereitstellen, um diese in dem modulierten optischen Signal zu übertragen.The LED module 20 can be configured to transmit information about an LED current for which the LED module 20 is designed in the modulated optical signal to the LED converter 10. This can take place, for example, at the start of operation before the at least one light-emitting diode 21 emits light. An integrated semiconductor circuit 24 of the LED module 20 can provide non-volatile stored information about the LED module 20, for example information about the LED current for which the LED module 20 is designed, in order to transmit this in the modulated optical signal.

Das LED-Modul 20 kann eingerichtet sein, um Information über eine LED-Vorwärtsspannung des LED-Moduls 20 in dem modulierten optischen Signal an den LED-Konverter 10 zu übertragen. Dies kann beispielsweise bei einem Betriebsstart erfolgen, bevor die wenigstens eine Leuchtdiode 21 Licht abgibt. Die integrierte Halbleiterschaltung 24 des LED-Moduls 20 kann nichtflüchtig gespeicherte Information über das LED-Modul 20, beispielsweise Information über die Vorwärtsspannung der wenigstens einen Leuchtdiode 21, bereitstellen, um diese in dem modulierten optischen Signal zu übertragen.The LED module 20 can be configured to transmit information about an LED forward voltage of the LED module 20 in the modulated optical signal to the LED converter 10. This can take place, for example, at the start of operation before the at least one light-emitting diode 21 emits light. The integrated semiconductor circuit 24 of the LED module 20 can provide non-volatile stored information about the LED module 20, for example information about the forward voltage of the at least one light-emitting diode 21, in order to transmit this in the modulated optical signal.

Das LED-Modul 20 kann eingerichtet sein, um Information über eine LED-Leistung des LED-Moduls 20 in dem modulierten optischen Signal an den LED-Konverter 10 zu übertragen. Dies kann beispielsweise bei einem Betriebsstart erfolgen, bevor die wenigstens eine Leuchtdiode 21 Licht abgibt. Die integrierte Halbleiterschaltung 24 des LED-Moduls 20 kann nichtflüchtig gespeicherte Information über das LED-Modul 20, beispielsweise Information über die Leistung der wenigstens einen Leuchtdiode 21, bereitstellen, um diese in dem modulierten optischen Signal zu übertragen.The LED module 20 can be configured to transmit information about an LED output of the LED module 20 in the modulated optical signal to the LED converter 10. This can take place, for example, at the start of operation before the at least one light-emitting diode 21 emits light. The integrated semiconductor circuit 24 of the LED module 20 can provide non-volatile stored information about the LED module 20, for example information about the power of the at least one light-emitting diode 21, in order to transmit this in the modulated optical signal.

Das LED-Modul 20 kann eingerichtet sein, um eine Farbinformation des LED-Moduls 20 in dem modulierten optischen Signal an den LED-Konverter 10 zu übertragen. Die integrierte Halbleiterschaltung 24 des LED-Moduls 20 kann nichtflüchtig gespeicherte Farbinformation bereitstellen, um diese in dem modulierten optischen Signal zu übertragen.The LED module 20 can be configured to transmit color information of the LED module 20 in the modulated optical signal to the LED converter 10. The integrated semiconductor circuit 24 of the LED module 20 can Provide non-volatile color information for transmission in the modulated optical signal.

Das LED-Modul 20 kann eingerichtet sein, um eine Alterungsinformation des LED-Moduls 20 in dem modulierten optischen Signal an den LED-Konverter 10 zu übertragen. Die integrierte Halbleiterschaltung 24 des LED-Moduls 20 kann dazu die Alterung des LED-Moduls 20 überwachen, um diese in dem modulierten optischen Signal zu übertragen.The LED module 20 can be configured to transmit aging information from the LED module 20 in the modulated optical signal to the LED converter 10. For this purpose, the integrated semiconductor circuit 24 of the LED module 20 can monitor the aging of the LED module 20 in order to transmit this in the modulated optical signal.

Das LED-Modul 20 kann eingerichtet sein, um eine mit einem Sensor 23 des LED-Moduls 20 erfasste Information umzusetzen und in dem modulierten optischen Signal an den LED-Konverter 10 zu übertragen. Die integrierte Halbleiterschaltung 24 des LED-Moduls 20 kann dazu ein Ausgangssignal des Sensors 23 überwachen, um diese in dem modulierten optischen Signal zu übertragen. Der Sensor 23 kann ein Temperatursensor sein.The LED module 20 can be set up to convert information acquired with a sensor 23 of the LED module 20 and to transmit it in the modulated optical signal to the LED converter 10. For this purpose, the integrated semiconductor circuit 24 of the LED module 20 can monitor an output signal of the sensor 23 in order to transmit this in the modulated optical signal. The sensor 23 can be a temperature sensor.

Der LED-Konverter 20 kann das modulierte optische Signal demodulieren. Ein Betrieb des LED-Konverters 20 kann als Antwort auf das modulierte optische Signal angepasst werden.The LED converter 20 can demodulate the modulated optical signal. Operation of the LED converter 20 can be adjusted in response to the modulated optical signal.

Falls in dem modulierten optischen Signal Information über den LED-Strom, für den das LED-Modul 20 ausgelegt ist, Information über die Vorwärtsspannung, Information über die LED-Leistung, Farbinformation und/oder Alterungsinformation enthalten ist, kann eine Steuer- oder Regelgröße abhängig von dem modulierten optischen Signal angepasst werden. Beispielsweise kann die Steuereinrichtung 14 des LED-Konverters 10 für eine Stromregelung oder eine Spannungsregelung eingerichtet sein. Die Steuereinrichtung 14 kann einen Sollwert einer Regelschleife abhängig von dem modulierten optischen Signal einstellen, das von der Konverter-Kommunikationseinrichtung 15 erfasst wird.If the modulated optical signal contains information about the LED current for which the LED module 20 is designed, information about the forward voltage, information about the LED power, color information and / or aging information, a control variable can be dependent be adjusted by the modulated optical signal. For example, the control device 14 of the LED converter 10 can be set up for current regulation or voltage regulation. The control device 14 can set a desired value of a control loop as a function of the modulated optical signal that is detected by the converter communication device 15.

Falls in dem modulierten optischen Signal Information über eine mit einem Temperatursensor 23 erfasste Temperatur enthalten ist, kann der LED-Konverter 10 Sicherheitsmechanismen wie eine automatische Reduzierung des Ausgangsstroms und/oder eine Abschaltung des Leuchtmittels abhängig von dem modulierten optischen Signal vornehmen. Alternativ kann eine automatische Reduzierung des Ausgangsstroms und/oder eine Abschaltung des Leuchtmittels abhängig von dem erfassten LED-Strom, der Vorwärtsspannung oder der LED-Leistung erfolgen.If the modulated optical signal contains information about a temperature detected by a temperature sensor 23, the LED converter 10 can implement security mechanisms such as an automatic reduction of the Output current and / or switch off the lamp depending on the modulated optical signal. Alternatively, the output current can be automatically reduced and / or the illuminant switched off depending on the detected LED current, the forward voltage or the LED power.

Während unter Bezugnahme auf Figur 1 beispielhaft ein System dargestellt ist, bei dem das modulierte optische Signal für eine unidirektionale Kommunikation von dem LED-Modul 20 zu dem LED-Konverter 10 verwendet wird, kann auch eine bidirektionale Kommunikation realisiert sein, wie unter Bezugnahme auf Figur 2 näher beschrieben wird, und/oder es kann eine unidirektionale Kommunikation von dem LED-Konverter 10 zu dem LED-Modul 20 unter Verwendung des modulierten optischen Signals erfolgen.While referring to Figure 1 As an example, a system is shown in which the modulated optical signal is used for unidirectional communication from the LED module 20 to the LED converter 10, a bidirectional communication can also be implemented, as with reference to FIG Figure 2 is described in more detail, and / or unidirectional communication can take place from the LED converter 10 to the LED module 20 using the modulated optical signal.

Das System kann auch eine Kommunikation zwischen mehreren LED-Modulen und/oder LED-Konvertern bereitstellen.The system can also provide communication between multiple LED modules and / or LED converters.

Figur 2 ist eine Darstellung eines Systems 1 mit einem LED-Konverter 10 und einem LED-Modul 20. Figure 2 is an illustration of a system 1 with an LED converter 10 and an LED module 20.

Die Konverter-Kommunikationseinrichtung 15 umfasst einen Sender für ein weiteres moduliertes optisches Signal, um eine Kommunikation zu dem LED-Modul 20 zu realisieren. Der Sender kann ein elektrooptisches Element 18 zum Erzeugen des modulierten optischen Signals umfassen. Das elektrooptische Element 18 kann eine Leuchtdiode sein. Das elektrooptische Element 18 kann einen elektrooptischen Modulator umfassen. Die Konverter-Kommunikationseinrichtung 15 kann einen Modulator 19 umfassen, der mit dem elektrooptischen Element 18 gekoppelt ist oder der integral mit dem elektrooptischen Element 18 ausgebildet ist. Der Modulator 19 kann eingerichtet sein, um zu übertragende Information, die als analoger Wert oder als digitale Signalfolge vorliegen kann, in das weitere modulierte optische Signal umzusetzen. Die Funktion des Modulators 19 kann von einer integrierten Halbleiterschaltung der Steuereinrichtung 14 ausgeführt werden.The converter communication device 15 comprises a transmitter for a further modulated optical signal in order to implement communication with the LED module 20. The transmitter may include an electro-optical element 18 for generating the modulated optical signal. The electro-optical element 18 can be a light-emitting diode. The electro-optical element 18 can comprise an electro-optical modulator. The converter communication device 15 can comprise a modulator 19 which is coupled to the electro-optical element 18 or which is formed integrally with the electro-optical element 18. The modulator 19 can be set up to convert information to be transmitted, which can be in the form of an analog value or a digital signal sequence, into the further modulated optical signal. The function of the modulator 19 can be carried out by an integrated semiconductor circuit of the control device 14.

Die Modul-Kommunikationseinrichtung 25 umfasst einen Empfänger für das weitere modulierte optische Signal. Der Empfänger umfasst einen optoelektronischen Sensor 26. Der optoelektronische Sensor 26 ist eingerichtet, um das weitere modulierte optische Signal von dem LED-Konverter 10 zu erfassen. Dazu kann der optoelektronische Sensor 26 so positioniert sein, dass das von dem LED-Konverter 10 ausgegebene optische Signal auf den optoelektronischen Sensor 26 trifft. Der optoelektronische Sensor 26 kann eine Fotodiode oder einen anderen Lichtsensor umfassen. Ein Ausgangssignal des optoelektronischen Sensors 26 kann von einem Demodulator 27 weiter verarbeitet werden, um das modulierte optische Signal zu demodulieren und eine Datenfolge oder ein analoges Signal zu ermitteln, die in dem modulierten optischen Signal kodiert ist.The module communication device 25 comprises a receiver for the further modulated optical signal. The receiver comprises an optoelectronic sensor 26. The optoelectronic sensor 26 is set up to detect the further modulated optical signal from the LED converter 10. For this purpose, the optoelectronic sensor 26 can be positioned such that the optical signal output by the LED converter 10 hits the optoelectronic sensor 26. The optoelectronic sensor 26 can comprise a photodiode or another light sensor. An output signal of the optoelectronic sensor 26 can be processed further by a demodulator 27 in order to demodulate the modulated optical signal and to determine a data sequence or an analog signal which is encoded in the modulated optical signal.

Während in Figur 2 ein System dargestellt ist, bei dem modulierte optische Signale für eine bidirektionale Kommunikation verwendet werden, kann bei weiteren Ausführungsbeispielen eine bidirektionale Kommunikation zwischen LED-Modul 20 und LED-Konverter 10 so implementiert werden, dass unterschiedliche Kommunikationsmethoden für unterschiedliche Kommunikationsrichtungen verwendet werden. Eine Kommunikation vom LED-Modul 20 zum LED-Konverter 10 kann unter Verwendung modulierter optischer Signale erfolgen, wie dies oben beschrieben wurde. Eine Kommunikation vom LED-Konverter 10 zum LED-Modul 20 kann derart erfolgen, dass Signale auf die Energieversorgung aufmoduliert und am LED-Modul 20 ausgewertet werden.While in Figure 2 A system is shown in which modulated optical signals are used for bidirectional communication. In further exemplary embodiments, bidirectional communication between LED module 20 and LED converter 10 can be implemented in such a way that different communication methods are used for different communication directions. Communication from the LED module 20 to the LED converter 10 can take place using modulated optical signals, as described above. Communication from the LED converter 10 to the LED module 20 can take place in such a way that signals are modulated onto the energy supply and evaluated on the LED module 20.

Alternativ kann der Sensor 26 auch so ausgestaltet sein, dass er auch als Sender arbeitet. D.h. der Sensor 26 kann gleichzeitig als Empfänger und Sender ausgestaltet sein. Beispielsweise kann der Sensor als LED ausgebildet sein, um als Sender modulierte optische Signale auszusenden und um in einem sogenannten Reversbetrieb als Photodiode als Empfänger zu arbeiten. Im sogenannten Reversbetrieb wird ein Teil des modulierten Lichtes bzw. des optisch modulierten Signals empfangen und der Spannungsabfall am Sensor gemessen und ausgewertet, um die Informationen des modulierten optischen Signals zu entschlüsseln.Alternatively, the sensor 26 can also be designed such that it also works as a transmitter. That is, the sensor 26 can be designed as a receiver and a transmitter at the same time. For example, the sensor can be designed as an LED in order to transmit optical signals modulated as a transmitter and to work in a so-called reverse operation as a photodiode as a receiver. In the so-called reverse mode, part of the modulated light or the optically modulated signal is received and the voltage drop at the sensor is measured and evaluated in order to obtain the information of the modulated optical signal to decrypt.

Das System kann auch eine Kommunikation zwischen mehreren LED-Modulen und/oder LED-Konverter bereitstellen.The system can also provide communication between multiple LED modules and / or LED converters.

Figur 3 ist eine Darstellung eines Systems 1 mit einem LED-Konverter 10 und einem LED-Modul 20. Dabei sind die Modul-Kommunikationseinrichtung 25 und die Konverter-Kommunikationseinrichtung 15 so eingerichtet, dass eine Kommunikation vom LED-Modul 20 zum LED-Konverter 10 unter Verwendung eines modulierten optischen Signals erfolgen kann. Figure 3 is a representation of a system 1 with an LED converter 10 and an LED module 20. The module communication device 25 and the converter communication device 15 are set up in such a way that communication from the LED module 20 to the LED converter 10 is used a modulated optical signal can take place.

Der Sender und der Empfänger des modulierten optischen Signals sind beabstandet voneinander angeordnet. Bei den Vorrichtungen, Verfahren und Systemen nach Ausführungsbeispielen können verschiedene Techniken verwendet werden, um sicherzustellen, dass ein ausreichend hoher Intensitätsanteil des modulierten optischen Signals an dem Empfänger erfassbar ist. Dazu können der LED-Konverter 10 und das LED-Modul 20 so relativ zueinander registriert sein, dass wenigstens ein Teil der Intensität des von dem LED-Modul 20 abgegebenen modulierten optischen Signals auf den Empfänger des LED-Konverters 10 trifft. Das LED-Modul 20 und/oder der LED-Konverter 10 können Registrierungsmittel zur mechanischen Registrierung umfassen. Alternativ oder zusätzlich kann die Anordnung des LED-Konverters 10 und des LED-Moduls 20 durch geeignete Haltemittel so festgelegt sein, dass wenigstens ein Teil der Intensität des von dem LED-Modul 20 abgegebenen modulierten optischen Signals auf den Empfänger des LED-Konverters 10 trifft. Alternativ oder zusätzlich kann ein optischer Leiter den Sender und den Empfänger des modulierten optischen Signals verbinden. Das modulierte optische Signal kann zwischen dem LED-Modul 10 und dem LED-Konverter 20 frei propagieren, wenigstens einmal umgelenkt werden oder in einem optischen Leiter geführt werden.The transmitter and the receiver of the modulated optical signal are arranged at a distance from one another. Various techniques can be used in the devices, methods and systems according to exemplary embodiments to ensure that a sufficiently high intensity component of the modulated optical signal can be detected at the receiver. For this purpose, the LED converter 10 and the LED module 20 can be registered relative to one another in such a way that at least part of the intensity of the modulated optical signal emitted by the LED module 20 hits the receiver of the LED converter 10. The LED module 20 and / or the LED converter 10 can comprise registration means for mechanical registration. Alternatively or additionally, the arrangement of the LED converter 10 and the LED module 20 can be determined by suitable holding means such that at least part of the intensity of the modulated optical signal emitted by the LED module 20 hits the receiver of the LED converter 10 . Alternatively or additionally, an optical conductor can connect the transmitter and the receiver of the modulated optical signal. The modulated optical signal can propagate freely between the LED module 10 and the LED converter 20, can be deflected at least once or be guided in an optical conductor.

Das System kann auch eine Kommunikation zwischen mehreren LED-Modulen und/oder LED-Konverter bereitstellen.The system can also provide communication between multiple LED modules and / or LED converters.

Figur 4 zeigt ein System 1 nach einem Ausführungsbeispiel. Das System 1 umfasst einen LED-Konverter 10 und ein LED-Modul 20, die wie unter Bezugnahme auf Figur 1 bis Figur 3 beschrieben ausgestaltet sein können. Figure 4 shows a system 1 according to an embodiment. The system 1 includes an LED converter 10 and an LED module 20, as described with reference to FIG Figure 1 to Figure 3 can be described.

Das LED-Modul 20 umfasst eine Platine 40. An einer ersten Oberfläche der Platine 40 sind mehrere Leuchtdioden 21 angeordnet. An einer zweiten Oberfläche der Platine 40, die von der ersten Oberfläche verschieden ist, ist ein Sender 28 für das modulierte optische Signal angeordnet. Der Sender 28 kann eine Leuchtdiode, einen elektrooptischen Modulator oder ein anderes elektrooptisches Element umfassen. Der Sender 28 kann an derjenigen Oberfläche der Platine 40 angeordnet sein, die entgegengesetzt zu der Oberfläche mit den Leuchtdioden 21 ist.The LED module 20 comprises a circuit board 40. A plurality of light-emitting diodes 21 are arranged on a first surface of the circuit board 40. A transmitter 28 for the modulated optical signal is arranged on a second surface of the circuit board 40, which is different from the first surface. Transmitter 28 may include a light emitting diode, an electro-optical modulator, or other electro-optical element. The transmitter 28 can be arranged on that surface of the circuit board 40 which is opposite to the surface with the light-emitting diodes 21.

Der LED-Konverter 10 weist einen Empfänger 16 für das modulierte optische Signal auf, das von dem Sender 28 abgegeben wird. Eine lichtempfindliche Fläche des Empfängers 16 ist so an einem Gehäuse 50 angeordnet, dass das modulierte optische Signal auf sie einfallen kann. Eine Anordnung des Empfängers 16 relativ zu dem Sender 28 ist festgelegt. Dazu kann das LED-Modul 20 ein Registrierungsmittel 41 umfassen, das die Position des LED-Moduls 20 relativ zu dem LED-Konverter 10 so festlegt, dass ein Teil der Intensität des von dem Sender 28 abgegebenen modulierten optischen Signals von dem Empfänger 16 erfasst wird.The LED converter 10 has a receiver 16 for the modulated optical signal that is emitted by the transmitter 28. A light-sensitive surface of the receiver 16 is arranged on a housing 50 in such a way that the modulated optical signal can fall on it. An arrangement of the receiver 16 relative to the transmitter 28 is fixed. For this purpose, the LED module 20 can comprise a registration means 41, which determines the position of the LED module 20 relative to the LED converter 10 such that part of the intensity of the modulated optical signal emitted by the transmitter 28 is detected by the receiver 16 .

Alternativ oder zusätzlich kann der LED-Konverter 10 ein Registrierungsmittel 51 aufweisen, damit die Position des Empfängers 16 relativ zu dem Sender 28 festgelegt werden kann. Dazu kann das LED-Modul 20 ein Registrierungsmittel 41 umfassen, das die Position des LED-Moduls 20 relativ zu dem LED-Konverter 10 so festlegt, dass ein Teil der Intensität des von dem Sender 28 abgegebenen modulierten optischen Signals von dem Empfänger 16 erfasst wird.Alternatively or additionally, the LED converter 10 can have a registration means 51 so that the position of the receiver 16 relative to the transmitter 28 can be determined. For this purpose, the LED module 20 can comprise a registration means 41, which determines the position of the LED module 20 relative to the LED converter 10 such that part of the intensity of the modulated optical signal emitted by the transmitter 28 is detected by the receiver 16 .

An dem LED-Modul 20 und dem LED-Konverter 10 können korrespondierende Registrierungsmittel vorgesehen sein, die die relative Position zwischen dem LED-Modul 20 und dem LED-Konverter 10 festlegen.Corresponding registration means can be provided on the LED module 20 and the LED converter 10, which register the relative position between the Define LED module 20 and LED converter 10.

Der LED-Konverter 10 und das LED-Modul 20 können in ihrer relativen Position zueinander so festgelegt sein, dass eine Fläche, über die das modulierte optische Signal beispielsweise an dem LED-Modul 20 ausgegeben wird, einer weiteren Fläche, an der das modulierte optische Signal beispielsweise an dem LED-Konverter 10 empfangen wird, gegenüberliegt.The LED converter 10 and the LED module 20 can be fixed in their relative position to one another such that an area over which the modulated optical signal is output, for example at the LED module 20, another area on which the modulated optical signal Signal received at the LED converter 10, for example, is opposite.

Es ist möglich, aber nicht immer erforderlich, dass aneinander angepasste Registrierungsmittel 41, 51 an dem LED-Konverter 10 und dem LED-Modul 20 vorgesehen sind. Beispielsweise können die Registrierungsmittel auch so ausgestaltet sein, dass sie sowohl das LED-Modul 20 als auch den LED-Konverter 10 derart in einer LED-Lampe oder einer anderen Einheit festlegen, dass ein Teil der Intensität des von dem Sender 28 abgegebenen modulierten optischen Signals von dem Empfänger 16 erfasst wird.It is possible, but not always necessary, for registration means 41, 51 which are matched to one another to be provided on the LED converter 10 and the LED module 20. For example, the registration means can also be designed such that they fix both the LED module 20 and the LED converter 10 in an LED lamp or another unit in such a way that part of the intensity of the modulated optical signal emitted by the transmitter 28 is detected by the receiver 16.

Wie schon im Ausführungsbeispiel der Fig. 2 beschrieben wurde, funktioniert das System auch in die andere Richtung oder für eine bidirektionale Kommunikation in beide Richtungen gleichzeitig.As already in the embodiment of the Fig. 2 the system also works in the other direction or for bidirectional communication in both directions simultaneously.

Figur 5 zeigt ein System 1 nach einem Ausführungsbeispiel. Das System 1 umfasst einen LED-Konverter 10 und ein LED-Modul 20, die wie unter Bezugnahme auf Figur 1 bis Figur 3 beschrieben ausgestaltet sein können. Figure 5 shows a system 1 according to an embodiment. The system 1 includes an LED converter 10 and an LED module 20, as described with reference to FIG Figure 1 to Figure 3 can be described.

Das LED-Modul 20 umfasst eine Platine 40. An einer ersten Oberfläche der Platine 40 sind mehrere Leuchtdioden 21 angeordnet. An einer zweiten Oberfläche der Platine 40, die von der ersten Oberfläche verschieden ist, ist ein Sender 28 für das modulierte optische Signal angeordnet. Der Sender 28 kann eine Leuchtdiode, einen elektrooptischen Modulator oder ein anderes elektrooptisches Element umfassen. Der Sender 28 kann an derjenigen Oberfläche der Platine 40 angeordnet sein, die entgegengesetzt zu der Oberfläche mit den Leuchtdioden 21 ist.The LED module 20 comprises a circuit board 40. A plurality of light-emitting diodes 21 are arranged on a first surface of the circuit board 40. A transmitter 28 for the modulated optical signal is arranged on a second surface of the circuit board 40, which is different from the first surface. Transmitter 28 may include a light emitting diode, an electro-optical modulator, or other electro-optical element. The transmitter 28 can be arranged on that surface of the circuit board 40 which is opposite to the surface with the light-emitting diodes 21.

Der LED-Konverter 10 weist einen Empfänger 16 für das modulierte optische Signal auf, das von dem Sender 28 abgegeben wird.The LED converter 10 has a receiver 16 for the modulated optical signal that is emitted by the transmitter 28.

Das modulierte optische Signal wird in einem optischen Leiter 49 übertragen. Der optische Leiter 49 kann eine Glasfaser oder eine andere optische Faser umfassen.The modulated optical signal is transmitted in an optical conductor 49. The optical conductor 49 can comprise an optical fiber or another optical fiber.

Der Sender 28 des modulierten optischen Signals an dem LED-Modul 20 kann einen Befestigungsabschnitt 42 umfassen, der eingerichtet ist, um den optischen Leiter 49 so zu halten, dass das modulierte optische Signal in den optischen Leiter 49 eingekoppelt wird.The transmitter 28 of the modulated optical signal on the LED module 20 can comprise a fastening section 42, which is configured to hold the optical conductor 49 in such a way that the modulated optical signal is coupled into the optical conductor 49.

Der Empfänger 16 des modulierten optischen Signals an dem LED-Konverter 10 kann einen Befestigungsabschnitt 52 umfassen, der eingerichtet ist, um den optischen Leiter 49 so zu halten, dass das modulierte optische Signal aus dem optischen Leiter 49 auf einen optoelektronischen Sensor des Empfängers 16 ausgekoppelt wird.The receiver 16 of the modulated optical signal on the LED converter 10 can comprise a fastening section 52, which is configured to hold the optical conductor 49 in such a way that the modulated optical signal couples out of the optical conductor 49 to an optoelectronic sensor of the receiver 16 becomes.

Eine Anordnung mit einem optischen Leiter 49 zur Übertragung des modulierten optischen Signals bietet größere Freiheit bei der Anordnung des LED-Konverters 10 und des LED-Moduls 20. Das Risiko einer fehlerhaften Installation wird durch die Ausgestaltung der Befestigungsabschnitte 42, 52, die von elektrischen Anschlüssen verschieden sind, gering gehalten.An arrangement with an optical conductor 49 for transmitting the modulated optical signal offers greater freedom in the arrangement of the LED converter 10 and the LED module 20. The risk of incorrect installation is caused by the design of the fastening sections 42, 52, that of electrical connections are different, kept low.

Wie schon im Ausführungsbeispiel der Fig. 2 beschrieben wurde, funktioniert das System auch in die andere Richtung bzw. in beide Richtungen gleichzeitig.As already in the embodiment of the Fig. 2 the system also works in the other direction or in both directions simultaneously.

Figur 6 zeigt ein System 1 nach einem Ausführungsbeispiel. Das System 1 umfasst einen LED-Konverter 10 und ein LED-Modul 20, die wie unter Bezugnahme auf Figur 1 bis Figur 3 beschrieben ausgestaltet sein können. Figure 6 shows a system 1 according to an embodiment. The system 1 includes an LED converter 10 and an LED module 20, as described with reference to FIG Figure 1 to Figure 3 can be described.

Das LED-Modul 20 umfasst eine Platine 40. An einer ersten Oberfläche der Platine 40 sind mehrere Leuchtdioden 21 angeordnet. An der ersten Oberfläche der Platine 40 ist ebenfalls ein Sender 28 für das modulierte optische Signal angeordnet. Der Sender 28 kann eine Leuchtdiode umfassen. Der Sender 28 kann eine der Leuchtdioden 21 sein, die im Nutzbetrieb Licht, z.B. für eine Raumbeleuchtung, erzeugen. Das modulierte optische Signal wird dabei bevorzugt mit einer Wellenlänge, einer Frequenz oder einer Amplitude erzeugt, die für das menschliche Auge nicht wahrnehmbar ist. Beispielsweise kann die Frequenz so hoch gewählt sein, dass die Modulation aufgrund der Trägheit des menschlichen Auges nicht wahrnehmbar ist.The LED module 20 comprises a circuit board 40. A plurality of light-emitting diodes 21 are arranged on a first surface of the circuit board 40. On the first surface a transmitter 28 for the modulated optical signal is also arranged on the circuit board 40. Transmitter 28 may include a light emitting diode. The transmitter 28 can be one of the light-emitting diodes 21, which generate light, for example for room lighting, during use. The modulated optical signal is preferably generated with a wavelength, a frequency or an amplitude that is not perceptible to the human eye. For example, the frequency can be chosen so high that the modulation is imperceptible due to the sluggishness of the human eye.

Der LED-Konverter 10 weist einen Empfänger 16 für das modulierte optische Signal auf, das von dem Sender 28 abgegeben wird.The LED converter 10 has a receiver 16 for the modulated optical signal that is emitted by the transmitter 28.

Der LED-Konverter 10 ist derart angeordnet, dass wenigstens ein Teil der Intensität des von dem Sender 28 abgegebenen modulierten optischen Signals auf den Empfänger 16 auftrifft. Beispielsweise kann der Empfänger 16 seitlich versetzt zu dem Sender 28 angeordnet sein. Optional kann ein optisches Umlenkelement oder können mehrere optische Umlenkelemente, z.B. ein oder mehrere Spiegel, verwendet werden, um das modulierte optische Signal von dem Sender 28 zu dem Empfänger 16 zu lenken.The LED converter 10 is arranged such that at least part of the intensity of the modulated optical signal emitted by the transmitter 28 hits the receiver 16. For example, the receiver 16 can be arranged laterally offset from the transmitter 28. Optionally, one or more optical deflection elements, e.g. one or more mirrors may be used to direct the modulated optical signal from the transmitter 28 to the receiver 16.

Die Vorrichtungen, Verfahren und Systeme nach Ausführungsbeispielen können für eine Kommunikation zwischen einem LED-Konverter 10 und einem LED-Modul 20 verwendet werden, die in einer Leuchte kombiniert sind.The devices, methods and systems according to exemplary embodiments can be used for communication between an LED converter 10 and an LED module 20, which are combined in a luminaire.

Wie schon im Ausführungsbeispiel der Fig. 2 beschrieben wurde, funktioniert das System auch in die andere Richtung bzw. in beide Richtungen gleichzeitig.As already in the embodiment of the Fig. 2 the system also works in the other direction or in both directions simultaneously.

Figur 7 zeigt ein System 1 nach einem Ausführungsbeispiel, das als LED-Lampe ausgestaltet ist. Das System 1 umfasst einen LED-Konverter 10 und ein LED-Modul 20, die wie unter Bezugnahme auf Figur 1 bis Figur 3 beschrieben ausgestaltet sein können. Figure 7 shows a system 1 according to an embodiment, which is designed as an LED lamp. The system 1 includes an LED converter 10 and an LED module 20, as described with reference to FIG Figure 1 to Figure 3 can be described.

Der LED-Konverter 10 und das LED-Modul 20 sind in einer LED-Lampe verbaut. Die LED-Lampe kann einen Sockel 61 und ein transluzentes Material 62 aufweisen. Das transluzente Material 62 kann das LED-Modul 20 wenigstens teilweise umgeben. Der LED-Konverter 10 und das LED-Modul 20 können so angeordnet sein, dass ein von einem Sender 28 des LED-Moduls 20 ausgegebenes moduliertes optisches Signal von einem Empfänger 16 des LED-Konverters 10 erfasst wird. Dazu kann beispielsweise die relative Anordnung zwischen Sender 27 und Empfänger 16 festgelegt werden und/oder ein optischer Leiter 49 vorgesehen werden, wie unter Bezugnahme auf Figur 4 bis Figur 7 beschrieben wurde.The LED converter 10 and the LED module 20 are installed in an LED lamp. The LED lamp can have a base 61 and a translucent material 62. The translucent material 62 can at least partially surround the LED module 20. The LED converter 10 and the LED module 20 can be arranged such that a modulated optical signal output by a transmitter 28 of the LED module 20 is detected by a receiver 16 of the LED converter 10. For this purpose, for example, the relative arrangement between transmitter 27 and receiver 16 can be defined and / or an optical conductor 49 can be provided, as with reference to FIG Figure 4 until Figure 7 has been described.

Figur 8 ist ein Flussdiagramm eines Verfahrens 70. Das Verfahren 70 kann von einem LED-Modul nach einem Ausführungsbeispiel ausgeführt werden. Figure 8 10 is a flowchart of a method 70. Method 70 may be performed by an LED module according to one embodiment.

Bei 71 erfolgt ein Betriebsstart. Dazu kann das LED-Modul beispielsweise zunächst eine geringe Versorgungsspannung und/oder einen geringen Versorgungsstrom empfangen, mit dem der Sender für das modulierte optische Signal betrieben werden kann, bevor die wenigstens eine Leuchtdiode 21 Licht abgibt.An operation starts at 71. For this purpose, the LED module can, for example, initially receive a low supply voltage and / or a low supply current with which the transmitter for the modulated optical signal can be operated before the at least one light-emitting diode 21 emits light.

Bei 72 wird überprüft, ob eine Bedingung zur Übertragung von Information erfüllt ist. Verschiedene Kriterien können verwendet werden, um eine Informationsübertragung auszulösen.At 72 it is checked whether a condition for transmitting information is fulfilled. Various criteria can be used to trigger an information transfer.

Beispielsweise kann Information über einen LED-Strom und/oder eine Vorwärtsspannung und/oder einer LED-Leistung und/oder Farbinformation bei jedem Betriebsstart übertragen werden. Information über einen LED-Strom und/oder eine Vorwärtsspannung und/oder einer LED-Leistung und/oder Farbinformation kann auch nur bei einem ersten Betriebsstart nach Installation übertragen werden.For example, information about an LED current and / or a forward voltage and / or an LED power and / or color information can be transmitted at each start of operation. Information about an LED current and / or a forward voltage and / or an LED power and / or color information can also be transmitted only after a first start of operation after installation.

Information über einen Alterungszustand kann bei jedem Betriebsstart oder selektiv nur dann, wenn sich die entsprechende Information über den Alterungszustand geändert hat, übertragen werden.Information about an aging condition can be transmitted at every start of operation or selectively only if the corresponding information about the aging condition has changed.

Temperaturinformation, die abhängig von einem Ausgangssignal eines Temperatursensors erzeugt wird, kann in zeitlichen Intervallen, z.B. periodisch, übertragen werden. Alternativ oder zusätzlich kann die Temperaturinformation selektiv dann übertragen werden, wenn die Temperatur einen Schwellenwert erreicht oder überschreitet. Die Temperaturinformation kann selektiv dann übertragen werden, wenn die Temperatur einen von mehreren Schwellenwerten erreicht oder überschreitet. Alternativ kann die Information über den LED-Strom und/oder die Vorwärtsspannung und/oder die LED-Leistung übertragen werden, wenn einer von mehreren Schwellenwerten erreicht oder überschritten wurde.Temperature information, which is generated depending on an output signal of a temperature sensor, can be generated at time intervals, e.g. periodically. Alternatively or additionally, the temperature information can be selectively transmitted when the temperature reaches or exceeds a threshold value. The temperature information can be selectively transmitted when the temperature reaches or exceeds one of several threshold values. Alternatively, the information about the LED current and / or the forward voltage and / or the LED power can be transmitted if one of several threshold values has been reached or exceeded.

Die Übertragung von Information kann auch als Antwort auf eine Anforderung durch den LED-Konverter 10 erfolgen. Die Anforderung kann vom LED-Konverter 10 zum LED-Modul 20 über eine Versorgungsleitung übertragen werden, über die auch der LED-Strom vom LED-Modul 20 empfangen wird.The information can also be transmitted in response to a request by the LED converter 10. The request can be transmitted from the LED converter 10 to the LED module 20 via a supply line, via which the LED current from the LED module 20 is also received.

Falls bei 72 ermittelt wird, dass die Bedingung für die Übertragung von Information nicht erfüllt ist, kann der Betrieb des LED-Moduls 20 bei 73 fortgesetzt werden. Das Verfahren kann zur Überprüfung bei 72 zurückkehren.If it is determined at 72 that the condition for the transmission of information is not fulfilled, the operation of the LED module 20 can continue at 73. The method may return to 72 for review.

Falls bei 72 ermittelt wird, dass die Bedingung für die Übertragung von Information erfüllt ist, kann bei 74 ein moduliertes optisches Signal erzeugt werden.If it is determined at 72 that the condition for the transmission of information is fulfilled, a modulated optical signal can be generated at 74.

Das modulierte optische Signal kann einen analogen Wert oder wenigstens ein Bit digitaler Information übertragen.The modulated optical signal can transmit an analog value or at least one bit of digital information.

Das modulierte optische Signal kann so erzeugt werden, dass die zu übertragende Information durch Amplitudenmodulation, Frequenzmodulation, Phasenmodulation oder andere Modulationstechniken kodiert wird.The modulated optical signal can be generated so that the information to be transmitted is encoded by amplitude modulation, frequency modulation, phase modulation or other modulation techniques.

Das modulierte optische Signal kann so erzeugt werden, dass es eine Wellenlänge im sichtbaren Bereich des elektromagnetischen Spektrums, im Infrarotbereich des elektromagnetischen Spektrums oder im Ultraviolettbereich des elektromagnetischen Spektrums aufweist.The modulated optical signal can be generated in such a way that it has a wavelength in the visible region of the electromagnetic spectrum, in the infrared region of the electromagnetic spectrum or in the ultraviolet region of the has electromagnetic spectrum.

Nach der Übertragung des modulierten optischen Signals kann das Verfahren zu 73 zurückkehren, um den Betrieb des LED-Moduls 20 fortzusetzen.After transmission of the modulated optical signal, the method may return to 73 to continue operating the LED module 20.

Figur 9 ist ein Flussdiagramm eines Verfahrens 80. Das Verfahren 80 kann von einem LED-Konverter 10 nach einem Ausführungsbeispiel ausgeführt werden. Figure 9 10 is a flowchart of a method 80. The method 80 may be performed by an LED converter 10 according to an embodiment.

Bei 81 empfängt der LED-Konverter 10 ein moduliertes optisches Signal. Das modulierte optische Signal kann von einem Sender 28 eines LED-Moduls 20 empfangen werden.At 81, the LED converter 10 receives a modulated optical signal. The modulated optical signal can be received by a transmitter 28 of an LED module 20.

Bei 82 wird das empfangene modulierte optische Signal demoduliert. Information, die in dem modulierten optischen Signal enthalten ist, kann durch Auslesen einer Amplitudenmodulation, Frequenzmodulation, Phasenmodulation oder andere Modulationstechnik ermittelt werden.At 82, the received modulated optical signal is demodulated. Information contained in the modulated optical signal can be determined by reading out an amplitude modulation, frequency modulation, phase modulation or other modulation technique.

Bei 83 kann der LED-Konverter 10 abhängig von dem demodulierten optischen Signal gesteuert werden. Die Steuerung kann auf unterschiedliche Weise als Antwort auf das modulierte optische Signal erfolgen.At 83, the LED converter 10 can be controlled depending on the demodulated optical signal. The control can take place in different ways in response to the modulated optical signal.

Falls das modulierte optische Signal Information über einen LED-Strom oder eine Vorwärtsspannung oder eine LED-Leistung des LED-Moduls 20 enthält, kann eine Steuerung oder Regelung eines Wandlers und/oder einer Leistungsfaktorkorrekturschaltung und/oder weiterer Komponenten des LED-Konverters 10 abhängig von der empfangenen Information erfolgen. Beispielsweise kann ein Sollwert einer Regelschleife, der den Ausgangsstrom des LED-Konverters 10 festlegt, abhängig von dem modulierten optischen Signal eingestellt werden, falls dieses Information über den LED-Strom des LED-Moduls 20 enthält.If the modulated optical signal contains information about an LED current or a forward voltage or an LED power of the LED module 20, a control or regulation of a converter and / or a power factor correction circuit and / or further components of the LED converter 10 can be dependent on of the information received. For example, a setpoint of a control loop, which defines the output current of the LED converter 10, can be set as a function of the modulated optical signal if it contains information about the LED current of the LED module 20.

Falls das modulierte optische Signal eine Alterungsinformation und/oder eine Farbinformation enthält, kann eine Stärke eines Ausgangsstroms des LED-Konverters 10 abhängig von der Alterungsinformation oder Farbinformation eingestellt werden.If the modulated optical signal contains aging information and / or color information, a strength of an output current of the LED converter 10 can be dependent on the aging information or color information can be set.

Falls das modulierte optische Signal Information enthält, die von einer an dem LED-Modul 20 erfassten Temperatur abhängt, kann abhängig von dieser Temperaturinformation eine oder mehrere Sicherheitsfunktionen aktiviert werden. Beispielsweise kann zum Schutz vor zu hohen Temperaturen als Antwort auf das modulierte optische Signal ein Ausgangsstrom des LED-Konverters 10 reduziert oder der Betrieb des LED-Moduls 20 vollständig abgeschaltet werden, falls die in dem modulierten optischen Signal enthaltene Information anzeigt, dass eine Schädigung des LED-Moduls 20 durch Temperatureffekte droht. Alternativ kann eine automatische Reduzierung des Ausgangsstroms und/oder eine Abschaltung des Leuchtmittels abhängig von dem erfassten LED-Strom, der Vorwärtsspannung oder der LED-Leistung erfolgen.If the modulated optical signal contains information that depends on a temperature detected on the LED module 20, one or more safety functions can be activated depending on this temperature information. For example, in order to protect against excessive temperatures in response to the modulated optical signal, an output current of the LED converter 10 can be reduced or the operation of the LED module 20 can be switched off completely if the information contained in the modulated optical signal indicates that damage to the LED module 20 threatens by temperature effects. Alternatively, the output current can be automatically reduced and / or the illuminant switched off depending on the detected LED current, the forward voltage or the LED power.

Während Vorrichtungen, Systeme und Verfahren nach Ausführungsbeispielen unter Bezugnahme auf die Figuren beschrieben wurden, können Abwandlungen bei weiteren Ausführungsbeispielen realisiert werden.While devices, systems and methods according to exemplary embodiments have been described with reference to the figures, modifications can be implemented in further exemplary embodiments.

Während ein LED-Konverter 10 und ein LED-Modul 20 so ausgestaltet sein können, dass ein LED-Strom über Versorgungsleitungen übertragen wird, kann auch eine Energieübertragung zur Versorgung der wenigstens einen Leuchtdiode 21 über eine Drahtlosschnittstelle erfolgen.While an LED converter 10 and an LED module 20 can be configured in such a way that an LED current is transmitted via supply lines, energy can also be transmitted to supply the at least one light-emitting diode 21 via a wireless interface.

Zusätzliche oder alternative Informationen können zwischen dem LED-Modul 20 und dem LED-Konverter 10 übertragen werden. Beispielsweise kann Information übertragen werden, die von einem Ausgangssignal eines Sensors 23 des LED-Moduls 20 abhängt. Beispielhaft für derartige Information ist eine Lichtintensität einer Fläche, die für eine Regelung der Beleuchtungsstärke verwendet wird.Additional or alternative information can be transmitted between the LED module 20 and the LED converter 10. For example, information can be transmitted that depends on an output signal from a sensor 23 of the LED module 20. An example of such information is a light intensity of a surface that is used for regulating the illuminance.

Die integrierte Halbleiterschaltung eines LED-Moduls 20 nach Ausführungsbeispielen kann als anwendungsspezifische Spezialschaltung (ASIC, "Application Specific Integrated Circuit"), als Controller, als Mikrocontroller, als Prozessor, als Mikroprozessor oder als anderer Chip oder als Kombination derartiger Komponenten ausgestaltet sein.The integrated semiconductor circuit of an LED module 20 according to exemplary embodiments can be used as an application-specific special circuit (ASIC, “Application Specific Integrated Circuit”), as a controller, as a microcontroller, as a processor, be designed as a microprocessor or as another chip or as a combination of such components.

Ein LED-Konverter 10 und ein LED-Modul 20 können so eingerichtet sein, dass mechanische Registrierungselemente wie Vorsprünge und/oder Ausnehmungen eine eindeutige Position festlegen, in der das LED-Modul 20 an dem LED-Konverter 10 befestigbar ist.An LED converter 10 and an LED module 20 can be set up in such a way that mechanical registration elements such as projections and / or recesses define a unique position in which the LED module 20 can be fastened to the LED converter 10.

LED-Module, LED-Konverter, Verfahren und Systeme nach Ausführungsbeispielen erleichtern die Installation von Leuchtmitteln mit wenigstens einer Leuchtdiode, wenn eine Kommunikation zwischen dem LED-Modul und dem LED-Konverter vorgesehen ist.LED modules, LED converters, methods and systems according to exemplary embodiments facilitate the installation of lamps with at least one light-emitting diode if communication between the LED module and the LED converter is provided.

Claims (15)

  1. A method for communication between an LED module (20) and an LED converter (10), characterized in that
    the LED module (20) comprises a module communication device (25) with an optoelectronic sensor (26) for communication with the LED converter (10) using a modulated optical signal, and
    wherein the optoelectronic sensor (26) is adapted in order to be operated optionally as a receiver or transmitter, comprising:
    Generation of the modulated optical signal and
    transmission of the modulated optical signal between the LED module (20) and the LED converter (10).
  2. The method according to Claim 1,
    wherein information concerning the LED module (20) is transmitted with the modulated optical signal.
  3. The method according to Claim 2,
    wherein the information concerning the LED module (20) is converted by a control device (14) of the LED converter (10), in order to control the LED converter (10) depending on the information concerning the LED module (20).
  4. The method according to Claim 2 or Claim 3, comprising
    demodulation of the modulated optical signal with a demodulator (17) of the LED converter.
  5. The method according to any one of Claims 2 to 4,
    wherein the information concerning the LED module (20) is selected from a group consisting of: An LED current of the LED module (20), a forward voltage at the LED module (20), an LED power at the LED module (20), a temperature detected at the LED module (20), aging information of the LED module (20) and color information of the LED module (20).
  6. An LED module, which is adapted for a coupling with an LED converter (10), characterized in that the LED module (20) comprises:
    A module communication device (25) with an optoelectronic sensor (26) for communication with the LED converter (10) using a modulated optical signal,
    wherein the optoelectronic sensor (26) is adapted, in order to be operated optionally as a receiver or transmitter.
  7. The LED module according to Claim 6,
    wherein the module communication device (25) is adapted, in order to generate the modulated optical signal depending on information concerning the LED module (20),
    wherein the information concerning the LED module (20) is selected from a group consisting of: An LED current of the LED module (20), a forward voltage at the LED module (20), an LED power at the LED module (20), a temperature detected at the LED module (20), aging information of the LED module (20) and color information of the LED module (20).
  8. The LED module according to Claim 6 or Claim 7,
    wherein the module communication device (25) comprises a transmitter (28) for generating the modulated optical signal.
  9. The LED module according to Claim 8,
    wherein the LED module (20) has a first board surface, on which a plurality of light-emitting diodes (21) is arranged for generating light.
    wherein the transmitter (28) is arranged on a second board surface of the LED module (20), which is different from the first board surface.
  10. The LED module according to any one of Claims 6 to 8,
    wherein the module communication device (25) is adapted, in order to output the modulated optical signal on a side of the LED module (20), on which a plurality of light-emitting diodes (21) is arranged for generating light.
  11. The LED module according to any one of Claims 6 to 10, wherein the LED module (20) comprises:
    A registration means (41) for mechanically determining a position of the module communication device (25) relative to a converter communication device (15) of the LED converter (10).
  12. The LED module according to any one of Claims 6 to 11,
    wherein the module communication device (25) is adapted for a coupling with an optical conductor (49).
  13. The LED converter, which is adapted for a coupling with an LED module (20) according to any one of Claims 6 to 12, wherein the LED converter (10) comprises:
    A converter communication device (15) with an optoelectronic sensor (16) for communication with the LED module (20) using a modulated optical signal,
    wherein the optoelectronic sensor (16) is adapted, in order to be operated optionally as a receiver or transmitter.
  14. The LED converter according to Claim 13,
    wherein the converter communication device (15) comprises a demodulator (17) for demodulation of the modulated optical signal,
    wherein the demodulator (17) is adapted, in order to determine information concerning the LED module (20) from the modulated optical signal, wherein the information concerning the LED module (20) is selected from a group consisting of: An LED current of the LED module (20), a forward voltage at the LED module (20), an LED power at the LED module (20), a temperature detected at the LED module (20), aging information of the LED module (20) and color information of the LED module (20).
  15. The LED converter according to Claim 13 or Claim 14, wherein the LED converter (10) comprises
    a converter circuit (12), and
    a control device (14) for the control of the converter circuit (12), which is coupled with the converter communication device (15),
    wherein the control device (14) is adapted, in order to control the converter circuit (12) depending on the modulated optical signal.
EP15832941.7A 2014-12-22 2015-12-16 Method and devices for communication between led module and led converter Active EP3238506B1 (en)

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DE102014226788.9A DE102014226788A1 (en) 2014-12-22 2014-12-22 Method and devices for communication between LED module and LED converter
ATGM86/2015U AT15868U1 (en) 2014-12-22 2015-04-02 Method and devices for communication between LED module and LED converter
PCT/AT2015/050320 WO2016100994A1 (en) 2014-12-22 2015-12-16 Method and devices for communication between led module and led converter

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EP1621426A1 (en) * 2004-07-30 2006-02-01 Schefenacker Vision Systems Germany GmbH Sensor device, use of a sensor device and vehicular lamp
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