• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a method of communication between an LED module (20) and an LED converter (10), the method comprising generating a modulated optical signal and transmitting the modulated optical signal between the LED module (20) and the LED LED converter (10) includes. Furthermore, the invention relates to an LED module and an LED converter and a system of LED module and LED converter.
    公开号:AT15868U1
    申请号:TGM86/2015U
    申请日:2015-04-02
    公开日:2018-07-15
    发明作者:
    申请人:Tridonic Gmbh & Co Kg；
    IPC主号:
    专利说明:

    description
    METHOD AND DEVICES FOR COMMUNICATION BETWEEN LED MODULE
    AND LED CONVERTER 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 the 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.
    [0003] There 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 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 realize 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 in order to implement bidirectional communication between the LED module and the LED converter.
    [0006] 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.
    The use of a modulated optical signal for communication between the LED module and the LED converter reduces the number of wired connections required between the LED module and the LED converter. The risk of incorrect installation is reduced.
    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.
    With the modulated optical signal, information relating to the LED module can be transmitted.
    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 / 18
    AT15 868U1 2018-07-15 Austrian patent office 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, one
    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.
    [0014] 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.
    [0017] 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.
    [0020] 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 according to an embodiment is set up for coupling to an LED converter and comprises a module communication device for communicating 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 may comprise a modulator, which is set up to encode data in 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 forward voltage on the LED module, an LED power on the LED module, one on the LED module detected temperature, aging information of the LED module and color information of the LED module.
    [0028] 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 LEDs for
    2.18
    AT15 868U1 2018-07-15 Austrian patent office
    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 configured 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 mechanical registration of the module communication device relative to a converter communication device of the LED converter.
    [0032] The module communication device can be set up for coupling to an optical conductor.
    An LED converter according to one 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.
    The converter communication device may 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, one Forward voltage of the 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 may include a converter circuit and a control device for controlling the converter circuit, which is coupled to the converter communication device.
    The control device can be set up to control the converter circuit as a function of the modulated optical signal.
    The LED converter can include registration means for mechanical registration of the converter communication device relative to a module communication device of the LED module.
    [0039] 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.
    [0041] The LED converter and the LED module can be integrated in an LED lamp.
    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.
    According to 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 to attach lines for communication to the LED converter and the LED module.
    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.
    3.18
    AT15 868U1 2018-07-15 Austrian Patent Office [0046] Figure 2 [0047] Figure 3 [0048] Figure 4 [0049] Figure 5 [0050] Figure 6 [0051] Figure 7 [0052] Figure 8 [0053] Figure 9 shows a system with an LED converter and an embodiment.
    shows a system with an LED converter and an embodiment.
    shows a system with an LED converter and an embodiment.
    shows a system with an LED converter and an embodiment.
    shows a system with an LED converter and an embodiment.
    shows a system with an LED converter and an embodiment.
    FIG. 10 is a flow diagram of a method that may be performed by an embodiment.
    FIG. 10 is a flow diagram of a method that may be performed by an embodiment.
    LED module after
    LED module after
    LED module after
    LED module after
    LED module after
    LED module after
    LED module after
    LED module according to [0054] The invention is described in more detail below using 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.
    Figure 1 shows a system 1 in which an LED converter 10 according to one embodiment supplies an LED module 20 with energy according to one embodiment. 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.
    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.
    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 head for. 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.
    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 set up
    4.18
    AT15 868U1 2018-07-15 Austrian patent office, in order to carry out a control or regulation of the LED converter 10 depending on a modulated optical signal that is received by the LED module 20 at the LED converter 10.
    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.
    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.
    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 are received.
    To communicate 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.
    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.
    An output signal of 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.
    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 coupled to the electro-optical element 28 or that 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 carried out 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 can be set up to process a signal which is generated by amplitude shift keying, Fre5 / 18
    AT15 868U1 2018-07-15 Austrian patent office for key shift keying, phase key shifting 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. 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.
    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 may 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 semiconductor integrated circuit 24 of the LED module 20 can provide non-volatile stored color information in order to transmit it 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. 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.
    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 to the LED converter 10 in the modulated optical signal. 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.
    6.18
    AT15 868U1 2018-07-15 Austrian patent office [0077] 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.
    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 used depending on 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, which is detected by the converter communication device 15.
    If information about a temperature detected by a temperature sensor 23 is contained in the modulated optical signal, the LED converter 10 can carry out security mechanisms such as an automatic reduction of the output current and / or a switching off of the illuminant 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.
    While a system is shown by way of example with reference to FIG. 1, in which the modulated optical signal is used for unidirectional communication from the LED module 20 to the LED converter 10, bidirectional communication can also be implemented, as under 2, and / or unidirectional communication can take place from the LED converter 10 to the LED module 20 using the modulated optical signal.
    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. 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.
    While a system is shown in FIG. 2, in which modulated optical signals are used for bidirectional communication, bidirectional communication between LED module 20 and LED converter 10 can be imple7 / 18 in further exemplary embodiments
    AT15 868U1 2018-07-15 Austrian patent office 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.
    Alternatively, the sensor 26 can also be designed such that it also works as a transmitter. That 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 decode the information of the modulated optical signal.
    The system can also provide communication between multiple LED modules and / or LED converters.
    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 so that communication from the LED module 20 to the LED converter 10 can be done using a modulated optical signal.
    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.
    The system can also provide communication between multiple LED modules and / or LED converters.
    Figure 4 shows a system 1 according to an embodiment. The system 1 comprises an LED converter 10 and an LED module 20, which can be configured as described with reference to FIGS. 1 to 3.
    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. 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 in such a way that part of the intensity of that emitted by the transmitter 28
    8.18
    AT15 868U1 2018-07-15 Austrian
    Patented output modulated optical signal is detected by the receiver 16.
    Alternatively or additionally, the LED converter 10 can have a registration means 51 so that the position of the receiver 16 can be determined relative to the transmitter 28. 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 ,
    Corresponding registration means can be provided on the LED module 20 and the LED converter 10, which determine the relative position between the LED module 20 and the LED converter 10.
    The LED converter 10 and the LED module 20 can be fixed in their relative position to one another in such a way that an area over which the modulated optical signal is output, for example, at the LED module 20, a further area on which the modulated optical signal is received at the LED converter 10, for example.
    It is possible, but not always necessary, that registration means 41, 51 which are matched to one another are 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.
    As has already been described in the exemplary embodiment in FIG. 2, the system also functions in the other direction or for bidirectional communication in both directions simultaneously.
    Figure 5 shows a system 1 according to an embodiment. The system 1 comprises an LED converter 10 and an LED module 20, which can be configured as described with reference to FIGS. 1 to 3.
    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.
    [00102] 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 may include a mounting portion 42 that is configured to hold the optical conductor 49 so 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 may include a mounting portion 52 that is configured to hold the optical conductor 49 so that the modulated optical signal from the optical conductor 49 to an optoelectronic sensor of the Receiver 16 is coupled out.
    An arrangement with an optical conductor 49 for the transmission of 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 due to the design of the fastening sections 42, 52 by electrical Connections are different, kept low.
    As has already been described in the embodiment of FIG. 2, the system also works in the other direction or in both directions simultaneously.
    9.18
    AT15 868U1 2018-07-15 Austrian Patent Office [00107] Figure 6 shows a system 1 according to an embodiment. The system 1 comprises an LED converter 10 and an LED module 20 which, as with reference to FIGS
    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 first surface of 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 in the operating mode light, e.g. for room lighting. 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.
    The LED converter 10 has a receiver 16 for the modulated optical signal, which 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. 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.
    The devices, methods and systems according to embodiments can be used for communication between an LED converter 10 and an LED module 20, which are combined in a lamp.
    As has already been described in the embodiment of FIG. 2, the system also works in the other direction or in both directions simultaneously.
    Figure 7 shows a system 1 according to an embodiment, which is designed as an LED lamp. The system 1 comprises an LED converter 10 and an LED module 20, which can be configured as described with reference to FIGS. 1 to 3.
    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 determined and / or an optical conductor 49 can be provided, as was described with reference to FIGS.
    Figure 8 is a flow diagram of a method 70. The method 70 can be carried out by an LED module according to an embodiment.
    At 71 there is an operating start. 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.
    At 72 it is checked whether a condition for transmitting information is fulfilled. Various criteria can be used to trigger an information transfer.
    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.
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    AT15 868U1 2018-07-15 Austrian Patent Office [00119] 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 in 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 transmission of information can also take place 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.
    If it is determined at 72 that the condition for the transmission of information is not met, the operation of the LED module 20 can be continued at 73. The method may return to 72 for review.
    If it is determined at 72 that the condition for the transmission of information is met, a modulated optical signal can be generated at 74.
    [00124] 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 so that it has 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.
    [00127] After transmission of the modulated optical signal, the method may return to 73 to continue operating the LED module 20.
    Figure 9 is a flowchart of a method 80. The method 80 can be carried out by an LED converter 10 according to an embodiment.
    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.
    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.
    At 83, the LED converter 10 can be controlled depending on the demodulated optical signal. The control can be done in different ways in response to the modulated optical signal.
    If the modulated optical signal contains information about an LED current or a forward voltage or an LED power of the LED module 20, control or regulation of a converter and / or a power factor correction circuit and / or other components of the LED converter 10 depending on 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.
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    AT15 868U1 2018-07-15 Austrian Patent Office [00133] 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 set depending on the aging information or color information.
    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, 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.
    [00135] 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.
    While an LED converter 10 and an LED module 20 can be configured such 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.
    [00137] 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.
    The integrated semiconductor circuit of an LED module 20 according to exemplary embodiments 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 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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    权利要求:
    Claims (10)
    [1]
    Expectations
    1. A method for communication between an LED module (20) and an LED converter (10), characterized in that the method of generating a modulated optical signal and transmitting the modulated optical signal between the LED module (20) and the LED converter (10).
    [2]
    2. The method according to claim 1, characterized in that with the modulated optical signal, an information relating to the LED module (20) is transmitted, and / or that the information relating to the LED module (20) from a control device (14) of the LED converter (10) is implemented in order to control the LED converter (10) depending on the information relating to the LED module (20).
    [3]
    3. The method according to claim 2, characterized in that the information relating to the LED module (20) is selected from a group consisting of: an LED current of the LED module (20), a forward voltage on the LED module (20), LED power on the LED module (20), temperature recorded on the LED module (20), aging information on the LED module (20) and color information on the LED module (20).
    [4]
    4. The method according to any one of the preceding claims, characterized in that an arrangement of a transmitter (18; 28; 18, 28) for generating the modulated optical signal relative to a receiver (16; 26; 16, 26) for receiving the modulated optical Signal is determined by mechanical registration means (41, 51) and / or that the modulated optical signal is transmitted in an optical conductor (49) and / or that the modulated optical signal is emitted on one side of the LED module (20), on which a plurality of light emitting diodes (21) for generating light is arranged.
    [5]
    5. LED module, which is set up for coupling to an LED converter (10), characterized in that the LED module (20) is a module communication device (25) for communication with the LED converter (10) Use of a modulated optical signal includes:
    [6]
    6. LED module according to claim 5, characterized in that the module communication device (25) is set up to generate the modulated optical signal depending on information relating to the LED module (20) and / or that the LED Information relating to module (20) is selected from a group consisting of: an LED current of the LED module (20), a forward voltage on the LED module (20), an LED power on the LED module (20), one on temperature detected by the LED module (20), aging information from the LED module (20) and color information from the LED module (20), and / or that the module communication device (25) has a transmitter (28) for generating the modulated one optical signal, the LED module (20) having a first side on which a plurality of light-emitting diodes (21) for generating light is arranged, the transmitter (28) on a second side of the LED module (20) is arranged, which is different from the first page.
    [7]
    7. LED module according to one of claims 5 or 6, characterized in that the module communication device (25) is set up to emit the modulated optical signal on one side of the LED module (20) on which a plurality of light-emitting diodes (21) for generating light, and / or that the LED module comprises a registration means (41) for mechanical registration of the module communication device (25) relative to a converter communication device (15) of the LED converter (10).
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    [8]
    8. LED converter, which is set up for coupling to an LED module (20), characterized in that the LED converter (10) is a converter communication device (15) for communication with the LED module (20) Includes use of a modulated optical signal.
    [9]
    9. LED converter according to claim 8, characterized in that the converter communication device (15) comprises a demodulator (17) for demodulating the modulated optical signal, and / or in that the demodulator (17) is set up to convert the LED To determine module (20) information from the modulated optical signal, the information relating to the LED module (20) being selected from a group consisting of: an LED current of the LED module (20), a forward voltage across the LED module (20), an LED power on the LED module (20), a temperature recorded on the LED module (20), aging information of the LED module (20) and color information of the LED module (20).
    [10]
    10. System, characterized in that the system comprises an LED module (20) according to one of claims 5 to 7, and an LED converter (10) according to one of claims 8 to 9.
    4 sheets of drawings
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    FIG. 1
    FIG.2
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    FIG. 3 s
    10 ^
    21 20
    FIG. 4
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    3.4
    FIG. 7
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    4.4
    FIG. 8th
    FIG. 9
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    同族专利:
    公开号 | 公开日
    DE102014226788A1|2016-06-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE202020002858U1|2020-07-03|2020-10-04|Denis Bronsert|Arrangement for controlling LEDs|
    法律状态:
    2020-12-15| MM01| Lapse because of not paying annual fees|Effective date: 20200430 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102014226788.9A|DE102014226788A1|2014-12-22|2014-12-22|Method and devices for communication between LED module and LED converter|PCT/AT2015/050320| WO2016100994A1|2014-12-22|2015-12-16|Method and devices for communication between led module and led converter|
    EP15832941.7A| EP3238506B1|2014-12-22|2015-12-16|Method and devices for communication between led module and led converter|
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