EP3058795B1 - Procédé et dispositifs de communication dans un système d'éclairage - Google Patents

Procédé et dispositifs de communication dans un système d'éclairage Download PDF

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Publication number
EP3058795B1
EP3058795B1 EP14784478.1A EP14784478A EP3058795B1 EP 3058795 B1 EP3058795 B1 EP 3058795B1 EP 14784478 A EP14784478 A EP 14784478A EP 3058795 B1 EP3058795 B1 EP 3058795B1
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EP
European Patent Office
Prior art keywords
bus
sensor
central unit
operating device
connection
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
EP14784478.1A
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German (de)
English (en)
Other versions
EP3058795A1 (fr
Inventor
Alexander Barth
Frank Horn
Reinhold Juen
Frank Lochmann
Günter MARENT
Florian Moosmann
Peter Pachler
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.)
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Publication of EP3058795A1 publication Critical patent/EP3058795A1/fr
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Publication of EP3058795B1 publication Critical patent/EP3058795B1/fr
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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
    • 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
    • H05B47/18—Controlling the light source by remote control via data-bus transmission
    • 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
    • H05B47/185—Controlling the light source by remote control via power line carrier transmission

Definitions

  • the invention relates to methods and devices for communication in lighting systems.
  • the invention relates in particular to methods and devices in which a central unit, a lamp operating device or a plurality of lamp operating devices is supplied with a DC supply voltage, communication between the central unit and a sensor of a lamp operating device being made possible.
  • the DE 10 2010 031 230 A1 relates to an LED lighting system with a modular operating circuit, comprising a first module, which has a second submodule, preferably an isolated energy-transmitting DC / DC converter, and has a control unit, and one or more second modules, preferably lamp management modules, each at least has a further sub-module, preferably a constant current source, and a control unit, at least one LED section being fed from the further sub-module, the first module transmitting electrical energy from the second sub-module to the further sub-module of each second module, and in parallel thereto an internal, preferably bidirectional communication interface is provided between the control unit of the first module and the control unit in every second module.
  • illuminant operating devices for light-emitting diodes (LED) or other illuminants are often designed in such a way that they have an input for coupling to an AC voltage supply source and provide a direct current or a direct voltage for the illuminant at their output.
  • a rectifier and / or a power factor correction circuit must accordingly be provided in each of the illuminant operating devices.
  • a central processing unit which generates a direct voltage (DC) supply voltage and makes it available to one or more illuminant operating devices via a DC bus.
  • the illuminant operating devices are provided separately from the central unit.
  • the illuminant operating devices are coupled to the central unit via a DC bus.
  • the central unit In normal commercial operation, in which the illuminants connected to the illuminant operating devices emit light, the central unit generates a DC supply voltage with a voltage level on the DC bus. Communication between the central unit and the lamp control gear can take place via the DC bus.
  • the invention is based on the object of specifying methods and devices which also enable communication between the central unit and a component of the illuminant operating devices when the voltage level on the DC bus is reduced.
  • the invention is particularly based on the object of specifying methods and devices of this type which enable communication between a central unit and a sensor of an illuminant operating device, even in a standby mode, without having to use several additional lines for this.
  • a central unit which supplies a lamp operating device with energy via a DC bus, communicates with a sensor of the lamp operating device via a line, which is also used, at least in a standby mode, to supply the sensor with energy.
  • the central unit can generate at least two voltage levels on the DC bus, via which the central unit supplies the lamp operating device with energy. At least when the voltage level on the DC bus is reduced, for example in a standby mode, communication between the sensor and the central unit can take place via the same line, via which the central unit also supplies the sensor with energy during the Voltage level on the DC bus is reduced.
  • the line can be the DC bus or a data line different from the DC bus, which is used in standby mode both for power supply and for communication between the central unit and the sensor.
  • the sensor can send sensor data to the central unit via the DC bus or the data line other than the DC bus.
  • the central unit can send control commands to the light medium operating device via the DC bus or the data line other than the DC bus.
  • illuminant operating devices can be connected to the DC bus and communicate with the central unit.
  • the devices and methods according to exemplary embodiments allow the central unit to supply energy to the sensor and to ensure communication between the sensor and the central unit even when a voltage level on the DC bus is reduced compared to a useful operation. Communication can take place via the DC bus. If a data line other than the DC bus is used for communication between the sensor and the central unit, the energy supply of the sensor can be used for energy supply of the sensor at least in standby mode.
  • the central unit In a method for communication between a central unit and a lamp operating device, the central unit generates a DC supply voltage for supplying the lamp operating device.
  • the illuminant operating device has a sensor. Data is transmitted between the central unit and the sensor of the lamp operating device via a line via which the central unit supplies the sensor of the lamp operating device with energy.
  • the central unit is coupled to the lamp operating device via a DC bus.
  • the central unit can generate a voltage level on the DC bus in a first operating state and can reduce the voltage level on the DC bus compared to the first operating state in a second operating state.
  • the transmitted data can include sensor data that are transmitted from the sensor to the central unit in the second operating state.
  • the reduction in the voltage level on the DC bus can indicate that a standby mode is activated.
  • the sensor data can be transmitted from the sensor to the central unit and the sensor can be supplied with power via the same line.
  • the sensor In the second operating state, the sensor can transmit the sensor data to the central unit via the DC bus.
  • the DC bus between the central unit and the lamp operating device can be used both for powering the sensor in standby mode and for data communication in standby mode.
  • the central unit In standby mode, the central unit can reduce the voltage level on the DC bus so that it is lower than the voltage level during normal operation, but a finite voltage is still provided on the DC bus for the operation of the sensor.
  • the central unit and the illuminant operating device can be connected to a line that is different from the DC bus.
  • the sensor In the second operating state, e.g. standby mode, the sensor can be supplied with energy by the central unit via the line other than the DC bus.
  • the sensor data can be transmitted to the central unit via the line other than the DC bus.
  • the additional line can be designed as a single-wire bus, which is used at least in the second operating state both for supplying energy to the sensor and for data transmission.
  • the data transmission can take place by generating a modulated signal.
  • the signal can be a high-frequency signal, which can have a frequency of, for example, at least one kHz or at least one MHz.
  • the data can be encoded in the modulated signal in different ways. Different bit values can be encoded, for example, by different amplitudes, different frequencies and / or different time intervals between pulse edges of the modulated signal.
  • Data can be transmitted in a frame or packet that contains address information.
  • the address information can be assigned to a lighting device or a sensor.
  • the frame or packet can include a header with the address information.
  • the address information can be displayed by the lamp operating device sending the data or the sensor sending the data.
  • the address information can indicate for which lamp operating device a control command is intended.
  • the illuminant operating device can comprise a modulator, which generates the modulated signal for transmitting the sensor data.
  • the central unit can comprise a demodulator which demodulates the modulated signal.
  • the second operating state can be a standby mode.
  • the second operating state is an operating mode in which a voltage level on the DC bus is reduced.
  • the transmission of the data can include the transmission of a control command coded in the data, which is transmitted from the central unit to the lamp operating device.
  • the control command can be addressed to the lamp operating device or the sensor.
  • the control command can be a switch-off command for switching off the lamp connected to the lamp operating device.
  • the central unit can comprise a power factor correction circuit.
  • the central unit can include both a rectifier and a power factor correction circuit.
  • the central unit can include a SELV ("Safety Extra Low Voltage") barrier.
  • the illuminant operating device can be designed such that it does not comprise a power factor correction circuit.
  • the power factor correction can be implemented by the central unit for several illuminant operating devices.
  • the illuminant operating device can be a SELV device.
  • the central unit can be connected to a plurality of illuminant operating devices which comprise a sensor.
  • the multiple illuminant operating devices can be connected to the DC bus.
  • Each of the multiple illuminant operating devices can be connected to an LED module.
  • a central unit for supplying illuminant operating devices is set up to generate a DC supply voltage for supplying the illuminant operating device.
  • the central unit comprises a connection for supplying energy to a sensor of a lamp operating device.
  • the central unit comprises a communication device which is coupled to the connection and which is set up to switch between the central unit and the sensor of the Illuminating device to receive and / or send data to be transmitted via the connection.
  • the communication device can be set up to receive sensor data from the sensor of the lamp operating device via the connection.
  • the central unit can be set up to receive the sensor data via a DC bus and to supply the sensor with energy via the DC bus even when the illuminant operating device is in a standby mode.
  • the connection can be set up for coupling to a DC bus.
  • the central unit can be set up to generate a voltage level on the DC bus in a first operating state and to reduce the voltage level compared to the first operating state in a second operating state.
  • the communication device can be set up to receive sensor data from the sensor at the connection in the second operating state.
  • the central unit can be set up to receive the sensor data via a line that is different from the DC bus and to supply the sensor with energy at least in standby mode via the line that is different from the DC bus.
  • the central unit can include a bus connection that is different from the connection and that is set up for coupling to a DC bus.
  • the connection via which the sensor data is received can be set up for coupling to the line other than the DC bus.
  • the central unit can be set up to supply the sensor with energy via the line different from the DC bus in a second operating state in which a voltage level on the DC bus is reduced.
  • the line other than the DC bus can be a single wire bus.
  • the communication device can comprise a demodulator for demodulating a signal received at the connection and / or a modulator for generating a control command.
  • the control command can be addressed to a sensor or a lamp operating device.
  • the control command can be a command to switch off the lamp operating device.
  • An illuminant operating device is set up to receive a DC supply voltage from a central unit and to supply an illuminant with energy.
  • the illuminant operating device comprises a sensor, a connection for a power supply for the sensor and a communication unit.
  • the communication unit is coupled to the sensor and is set up to send and / or receive data to be transmitted between the sensor of the lamp operating device and the central unit via the connection.
  • the illuminant operating device can be set up in such a way that it is supplied with energy in normal normal operation via a DC bus, and in a standby mode the data communication and the supply of the sensor with energy take place via the DC bus.
  • the connection can be set up for coupling to a DC bus.
  • the illuminant operating device can be configured to supply the illuminant with energy in a first operating state when a first voltage level is present on the DC bus and to supply the sensor with energy in a second operating state when the voltage level on the DC bus is reduced.
  • the communication unit can be set up to transmit sensor data from the sensor via the connection in the second operating state.
  • the illuminant operating device can be set up in such a way that it is supplied with energy during normal useful operation via a DC bus and that in a standby mode the data communication and the supply of the sensor with energy take place via a line which is different from the DC bus is.
  • the illuminant operating device can comprise a bus connection which is different from the connection and is set up for coupling to a DC bus.
  • the connection via which the data communication and energy supply of the sensor takes place at least in standby mode can be set up for coupling to a line different from the DC bus.
  • the sensor can be set up to be supplied with energy in the second operating state via the line other than the DC bus.
  • the line other than the DC bus can be a single wire bus.
  • the communication unit can comprise a modulator for generating a modulated signal depending on an output signal of the sensor and / or a demodulator for demodulating a modulated signal received at the connection.
  • the communication unit can be set up to generate the modulated signal in such a way that the transmitted data includes address information of the lighting device and / or the sensor.
  • the sensor can be structurally integrated in a housing of the lamp operating device.
  • the sensor can be arranged outside a housing of the lamp operating device.
  • a system which comprises a central unit according to one exemplary embodiment, at least one lamp operating device according to one exemplary embodiment, at least one LED module which is connected to the at least one lamp operating device, and a DC bus which is connected to the central unit and the at least one lamp operating device is connected.
  • the illuminant operating device and the LED module can be integrally formed.
  • the illuminant operating device and the LED module can be arranged in a common housing and / or on a common carrier.
  • a unit which comprises a lamp operating device according to one exemplary embodiment and at least one LED module which is connected to the at least one lamp operating device.
  • the illuminant operating device and the LED module can be arranged in a common housing and / or on a common carrier.
  • Devices and methods according to exemplary embodiments can be used in particular for lighting systems in which the illuminant comprises a light-emitting diode (LED) or a plurality of LEDs.
  • the illuminant comprises a light-emitting diode (LED) or a plurality of LEDs.
  • Figure 1 shows a system 1 with a central unit 10, a plurality of lamp operating devices 20, 30 and a plurality of LED modules 4, each of which is connected to a lamp operating device 20, 30.
  • the central unit 10 is set up to generate a DC supply voltage and to supply the lamp operating devices 20, 30 with energy via a DC bus 3.
  • Elements such as a rectifier or a power factor correction circuit 12, which would conventionally have to be provided separately in each of a plurality of LED converters, can be present in the central unit 10 and then no longer have to be used separately in the various lamp operating devices 20, 30.
  • the illuminant operating devices 20, 30 no longer have to have their own power factor correction circuit and / or no rectifier on the input side.
  • the illuminant operating devices 20, 30 are connected to the DC bus 3 at their input 21, 31.
  • the illuminant operating devices 20, 30 have the function of providing the LED current for the LED module 4 connected to their output.
  • the LED module 4 can be arranged with the lamp operating device 20, 30, for example on a circuit board or with two connected circuit boards, integrated within a common housing.
  • the LED module 4 can be arranged on a common carrier with the lamp operating device 20, 30 assigned to it.
  • the illuminant operating devices 20, 30 can execute a control or regulating loop in order to set the LED current that is provided to the LED module 4.
  • a lamp operating device 20, 30 or more of the lamp operating devices 20, 30 can each comprise a DC / DC converter 22, 32.
  • the DC / DC converter 22, 32 can be, for example, a buck converter (buck converter), a flyback converter (flyback converter) or another DC / DC converter.
  • a control or regulating circuit of the lamp operating device 20, 30 can switch a controllable switch of the DC / DC converter 22, 32 clocked so that the LED current is controlled or regulated to a setpoint value when the system 1 is operating in order to light to deliver.
  • the LED module 4 each has a light-emitting diode (LED) or a plurality of LEDs 5.
  • the LEDs 5 can comprise an inorganic light-emitting diode or several inorganic LEDs or one or more organic LEDs (OLEDs).
  • the LEDs of the LED module 4 can be connected in one or more LED sections or in a two-dimensional arrangement.
  • the central processing unit 10 is set up to generate at least two different voltage levels on the DC bus 3.
  • a first voltage level is generated when the system 1 operates in a normal useful mode, in which the LEDs 5 of the LED modules 4 emit light.
  • a lower second voltage level can be generated, for example, in a standby mode in which the LEDs 5 of the LED modules 4 emit no light or in an emergency light mode in which the light output for an emergency light function is reduced.
  • the central processing unit 10 At least in the operating state in which the voltage level on the DC bus 3 is reduced by the central processing unit 10, communication between the central processing unit 10 and a sensor 23, 33 of a lamp operating device 20, 30 and the supply of the sensor 23, 33 with energy done by the central unit 10 over the same line.
  • the sensor 23, 33 of a lighting device 20, 30 At least in the operating state in which the voltage level on the DC bus 3 is reduced by the central unit 10, the sensor 23, 33 of a lighting device 20, 30 is supplied with energy via the DC bus 3.
  • the voltage level on the DC bus 3 is lowered by the central processing unit 10 in the second operating state to a value that is greater than zero.
  • the voltage level on the DC bus 3 can be reduced by the central processing unit 10 in the second operating state to an input voltage of the sensor 23, 33.
  • unidirectional or bidirectional communication can take place between the central processing unit 10 and the sensor 23, 33 of the lighting device 20, 30 via the DC bus 3 .
  • the sensor 23, 33 can transmit sensor data to the central processing unit 10 via the DC bus 3.
  • a communication unit 24, 34 which is integrated in the sensor 23, 33 or is connected to the sensor 23, 33, can for this purpose modulate a modulated signal, for example an AC signal, onto the DC bus 3.
  • Data can be encoded, for example, by the frequency, the amplitude and / or the time interval between edges of the AC signal.
  • the AC signal can, for example, have a frequency of at least one kHz or at least one MHz.
  • the data transmitted from the illuminant operating device 20, 30 to the central unit 10 can contain address information which uniquely identifies the sensor, the data of which are transmitted, in the system 1.
  • the data transmitted from the illuminant operating device 20, 30 to the central unit 10 can contain address information included, which uniquely identifies the illuminant operating device from which the data is transmitted in the system 1.
  • the address information can, for example, be contained in a header of a data frame or data packet.
  • the central unit 10 can transmit data to a lamp operating device or a plurality of lamp operating devices 20, 30 via the DC bus 3.
  • the data transmitted from the central unit to a lamp operating device 20, 30 can contain a control command.
  • the control command can be, for example, a switch-off command with which one or more of the lamp operating devices 20, 30 are switched off.
  • the control command can be an emergency light command with which an emergency light function for one or more of the illuminant operating devices 20, 30 is activated.
  • the control command can be transmitted from the central unit 10 via the DC bus 3, while the central unit 10 generates a first voltage level on the DC bus 3 for normal use, in which the LED modules 4 emit light and / or during the Central unit 10 keeps the voltage level on the DC bus 3 in a second operating state at a lower value.
  • the data that are transmitted from the central unit 10 via the DC bus 3 can be encoded, for example, by the frequency, the amplitude and / or the time interval between edges of a modulated signal, such as an AC signal.
  • the AC signal can, for example, have a frequency of at least one kHz or at least one MHz.
  • the data transmitted from the central unit 10 to the lamp operating device 20, 30 can contain address information that uniquely identifies one or more of the lamp operating devices 20, 30 that are connected to the central unit 10.
  • the address information can, for example, be contained in a header of a data frame or data packet.
  • the sensor can be integrated in a housing of the lamp operating device, as is shown for the sensor 23 of the lamp operating device 20.
  • the sensor can also be arranged outside a housing of the lamp operating device, as is shown for the sensor 33 of the lamp operating device 30.
  • the sensor can also be detachably, in particular reversibly detachably, connected to the lamp operating device.
  • the lighting device 20, 30 can have a communication unit 24, 34.
  • the communication unit can be integrated in the sensor, such as this is shown for the communication unit 24 of the lamp operating device 20.
  • the communication unit can be provided separately from the sensor, as is shown for the communication unit 34 of the lighting device 20.
  • the communication unit 24, 34 is set up to modulate an AC signal to a DC voltage on the DC bus 3.
  • the communication unit 24, 34 can comprise a controllable semiconductor switch which is switched at a switching frequency in order to modulate the AC signal.
  • an illuminant operating device 20, 30 can comprise a demodulator in order to demodulate modulated signals transmitted via the DC bus 3.
  • the central unit 10 has a communication device 15.
  • the communication device 15 is coupled to a connection 17 of the central unit 10, which is connected to the DC bus 3 during operation.
  • the communication device 15 can have a demodulator in order to demodulate a modulated signal on the DC bus 3 in order to recover the sensor data transmitted by one of the sensors 23, 33.
  • the demodulator can be set up to determine the sensor data and address information that identifies a transmitting sensor by processing the modulated signal.
  • the communication device 15 can comprise a modulator with which, for example, control commands can be transmitted via the DC bus 3.
  • the central unit 10 can comprise a controller 16 which controls a power factor correction circuit (PFC) and / or a DC / DC converter 13 of the central unit.
  • the controller 16 can control the power factor correction circuit and / or the DC / DC converter 13 depending on the sensor data that have been transmitted via the DC bus 3.
  • the controller 16 can set a control loop parameter depending on the sensor data transmitted via the DC bus 3 while the voltage level on the DC bus 3 is reduced in the second operating state.
  • the controller 16 can control a voltage level on the DC bus 3 depending on the sensor data that was transmitted via the DC bus 3. For example, the voltage level can be reduced to put the system 1 into standby mode if motion sensors have not reported any motion for a certain period of time.
  • the voltage level can be increased in order to wake the system 1 from a standby mode into normal useful operation when a motion sensor detects motion.
  • the central unit 10 can be configured such that it receives an AC voltage at an input connection 11.
  • the input terminal 11 can be connected to an AC voltage source 2, for example a power line.
  • the central unit 10 can comprise a rectifier and / or a power factor correction circuit 12.
  • the central unit 10 can comprise a DC / DC converter 13 or another converter that provides a potential barrier 14.
  • the potential barrier 14 can be a SELV ("Safety Extra Low Voltage") barrier.
  • the connection 17 of the central unit 10 is connected to the DC bus 3.
  • the DC / DC converter 13 and / or the power factor correction circuit can be controlled in such a way that a desired voltage level is set at the connection 17 for the DC bus 3. In a first operating state, for example normal commercial operation, a first, higher voltage level can be set. In a second operating state, for example a standby mode, the voltage level that is set by the central unit 10 on the DC bus 3 can be reduced.
  • the illuminant operating devices 20, 30 are connected to the DC bus 3 at their input connection 21, 31.
  • the sensor 23, 33 is coupled to the input connection 21, 31 of the corresponding lamp operating device 20, 30 in order to be supplied with energy via the input connection 21, 31 at least in the second operating state in which the voltage level on the DC bus 3 is reduced will.
  • the illuminant operating devices 20, 30 can be configured such that in the first operating state, in which the voltage level on the DC bus 3 is higher, the illuminant operating device 20, 30 detects the sensor 23, 33 via a supply circuit which is connected between the input connection 21, 31 and the corresponding sensor 23, 33 is connected, supplied with energy.
  • the illuminant operating device 20, 30 can automatically recognize how the sensor 23, 33 is to be supplied with energy.
  • Figure 2 shows schematically a bus voltage on the DC bus 3 in a system 1 according to an embodiment.
  • the system 1 In a period of time 41, the system 1 is in a first operating state, for example normal normal operation, in which the LED modules 4 emit light.
  • the central unit 10 provides an output voltage so that a first voltage level V1 is present on the DC bus 3.
  • the system 1 In a further period 42-45, the system 1 is in a second operating state, for example in a standby mode.
  • the central unit 10 provides an output voltage with which the DC voltage on the DC bus 3 is set to a second voltage level V2.
  • the second voltage level V2 can correspond to the supply voltage of the sensor 23, 33 of a lighting device 20, 30.
  • the bus voltage 52, 54 remains at the second voltage level V2 in the second operating state.
  • an AC signal 53, 55 can be modulated onto the bus voltage.
  • a communication unit 24, 34 of a lighting device 20, 30 can modulate the AC signals 53, 55.
  • one of the AC signals 53, 55 can be generated by the communication device 15 of the central unit 10.
  • data can be encoded in the amplitude, the frequency and / or the time interval between edges of the AC signals.
  • the modulated AC signals 53, 55 can contain address information, for example the address information of a sensor or lighting device that sends data to the central unit, or the address information of a sensor or lighting device to which the central unit 10 transmits a control command.
  • Data can also be transmitted via the DC bus 3 in the first operating state in which the central unit 10 provides an output voltage with which the first voltage level V1 is generated on the DC bus 3.
  • FIG Figure 3 The mode of operation of central units and illuminant operating devices according to exemplary embodiments is shown in FIG Figure 3 and Figure 4 further described.
  • Figure 3 10 is a flowchart of a method 60 that can be automatically performed by a central processing unit according to one embodiment.
  • the method 60 may be performed by the central processing unit 10 of the system of Figure 1 or from the central unit 80 of the system of Figure 5 be carried out.
  • the central unit 10 In step 61, the central unit 10 generates a DC supply voltage with a first voltage level, which is provided on the DC bus 3 for operating the lamp.
  • One or more illuminant operating devices can each supply an LED module 4 assigned to them with an LED current, so that the LED module 4 emits light.
  • step 62 it is checked whether a second operating state, for example a standby mode, is to be activated. If normal utility operation is to be continued, the method returns to step 61. If the second operating state is maintained, the method continues with step 63.
  • a second operating state for example a standby mode
  • step 63 the central unit 10 reduces the voltage level on the DC bus 3.
  • An output voltage of the central unit 10 can be reduced in such a way that the voltage level on the DC bus is reduced to a supply voltage of the sensor 23, 33 of a lighting device 20, 30.
  • step 64 communication takes place between the sensor 23, 33 of a lamp operating device 20, 30 and the central unit 10 via the line via which the sensor 23, 33 is supplied with energy in the second operating state.
  • This can be the DC bus 3, as for the system of Figure 1 and Figure 2 or a single wire bus as for the system of Figure 5 to Figure 7 will be described.
  • the communication between the sensor 23, 33 and the central unit 10 via the supply line can be carried out at least until the second operating state is ended.
  • Figure 4 10 is a flowchart of a method 70 that may be automatically performed by a lighting device device according to an embodiment.
  • the method 70 can be performed by the lamp operating device 20, 30 of the system of Figure 1 or from the illuminant operating device 81 of the system from Figure 5 be carried out.
  • the lamp operating device receives a DC supply voltage with a first voltage level at the input connection, which is connected to the DC bus 3.
  • the lamp operating device generates an LED current which is provided to the LED module so that the LED module emits light.
  • a sensor of the illuminant operating device can be supplied with energy, for example, via a supply circuit connected between the input connection and the sensor.
  • the supply circuit can provide a voltage to the sensor that is lower than the voltage present at the input connection of the lamp operating device.
  • step 72 it is checked whether a voltage level that is lower than the first voltage level is present on the DC bus.
  • the reduced voltage level indicates that a second operating state, for example a standby mode or an emergency lighting mode, is to be activated. If no reduced voltage level is detected on the DC bus, the method returns to step 71. If a reduced voltage level is detected on the DC bus, the process continues at step 73.
  • the illuminant operating device activates a second operating state, for example a standby mode.
  • the sensor 23, 33 can be electrically conductively connected to the input connection of the lamp operating device in order to be supplied with energy by the central unit 10 via the DC bus 3.
  • a setpoint value of the LED current can be reduced to zero and the control of a DC / DC converter 22, 32 can be adapted accordingly.
  • step 74 communication takes place between the sensor of the lighting device and the central unit 10 via the line via which the sensor is supplied with energy in the second operating state.
  • This can be the DC bus 3, as for the system of Figure 1 and Figure 2 or a single wire bus as for the system of Figure 5 to Figure 7 will be described.
  • the communication between the sensor 23, 33 and the central unit 10 via the supply line can be carried out at least until the second operating state is ended.
  • Figure 5 shows a system 1 according to a further exemplary embodiment, which comprises a central unit 80 and a lamp operating device 81. Even if in Figure 5 Only one illuminant operating device 81 is shown, several such illuminant operating devices 81 can be connected to one DC bus 3. As an alternative or in addition, at least one lighting device 20, 30, as described with reference to FIG Figure 1 has been described, be connected to the DC bus 3.
  • the central processing unit 80 has a connection 84 which is connected to the single-wire bus 85.
  • the illuminant operating device 81 has a connection 86 which is connected to the single-wire bus 85. At least in a second operating state, in which the voltage level on the DC bus 3 is reduced, current can be supplied to the sensor 23 of the lighting device 81 via the single-wire bus 85.
  • unidirectional or bidirectional data transmission between the sensor 23 and the central unit 80 can take place via the single-wire bus 85.
  • a communication unit 24 of the lighting device 81 can be set up to change a potential between the single-wire bus 85 relative to a reference potential P0 so that a modulated AC signal is generated.
  • the central unit 80 has a bus connection 82 for connection to the DC bus 3.
  • the illuminant operating device 81 has a bus connection 83 for connection to the DC bus 3.
  • a first operating state for example a normal one In commercial operation, in which the LED module 4 emits light
  • the central unit 80 can set a first voltage level on the DC bus 3.
  • a second operating state for example a standby mode
  • the central unit 80 can reduce the voltage level on the DC bus 3 compared to the first operating state.
  • the energy supply of the sensor 23 can take place either via the DC bus 3 or via the single-wire bus 85.
  • the system of Figure 5 the voltage on the DC bus can be reduced to zero.
  • the power supply of the sensor 23 takes place via the single-wire bus 85.
  • the transmission of data, which include control commands, from the central unit 80 to the illuminant operating device 81 can also take place via the single-wire bus 85.
  • Figure 6 shows the voltage on the DC bus in system 1 of Figure 5 .
  • the system 1 In a period of time 41, the system 1 is in a first operating state, for example normal normal operation, in which the LED modules 4 emit light.
  • the central unit 80 provides an output voltage at the bus connection 82, so that a first voltage level V1 is present on the DC bus 3.
  • the system 1 In a further period 42-45, the system 1 is in a second operating state, for example in a standby mode.
  • the DC bus 3 can be switched off in the second operating state.
  • the voltage level can be reduced to a voltage of 0 V.
  • Figure 7 shows the potential difference Vdata between the potential on the single-wire bus 85 and a reference potential P0.
  • modulated signals such as modulated voltage signals
  • the voltage between the potential on the single-wire bus 85 and the reference potential P0 can have a modulated signal, for example a modulated AC signal 93, 95.
  • the AC signal 93, 95 can be generated by a communication unit 24 of the lighting device 81 on the single-wire bus 85. If no data packet or data frame is transmitted, the potential 92, 94 on the single-wire bus 85 can be kept constant.
  • data can be encoded in the amplitude, the frequency and / or the time interval between edges of the AC signals.
  • the modulated AC signals 93, 95 can contain address information, for example the address information of a sensor or lamp operating device that sends data to the central unit, or the address information of a sensor or lamp operating device to which the central unit 10 transmits a control command.
  • the central unit can have a demodulator and / or a modulator, depending on whether unidirectional or bidirectional communication is to take place via the supply line via which the sensor of the illuminant operating device is supplied with energy by the central unit in the second operating state.
  • the illuminant operating device can have a modulator and / or a demodulator.
  • FIG 8 schematically shows the components of a central processing unit 100 and a lamp operating device 110 for data transmission in a system according to an exemplary embodiment.
  • Central processing unit 100 like central processing unit 10 of the system of FIG Figure 1 or as the central unit 80 of the system of Figure 5 be designed.
  • the lamp operating device 110 like the lamp operating device 20, 30 of the system of FIG Figure 1 or as the illuminant operating device 81 of the system from Figure 5 be designed.
  • the central unit 100 and the illuminant operating device 110 are connected via a line 120, via which at least in the second operating state a sensor of the illuminant operating device 110 is supplied with energy by the central unit 100.
  • the line 120 can be a DC bus 3 or a single-wire bus 85.
  • a communication device 102 of the central unit 100 can have a demodulator 103.
  • a communication unit 112 of the lamp operating device 110 can have a modulator 114.
  • the modulator 114 of the lighting device 110 can modulate an AC signal on the line 120.
  • the modulated signal can be transmitted via the line 120 via a corresponding connection 111, via which the sensor of the lamp operating device 110 is supplied with energy at least in the second operating state.
  • the central unit can receive the modulated signal at a connection 101.
  • the demodulator 103 can determine the transmitted data by processing the modulated signal.
  • the transmitted data can include sensor data that depend on a variable detected with the sensor, and optionally also address information that uniquely identifies the sensor or the lamp operating device 110.
  • the communication device 102 of the central unit 100 can have a modulator 104.
  • the communication unit 112 of the illuminant operating device 110 can have a demodulator 113.
  • the modulator 104 can generate a modulated signal that is transmitted over the line 120.
  • the modulated signal can be dependent on address information of the receiving lamp operating device 110 are generated.
  • the modulated signal can be generated in such a way that the transmitted data contain a control command.
  • the demodulator 113 of the lamp operating device 110 can determine the transmitted data by processing the modulated signal.
  • one illuminant operating device or several illuminant operating devices are combined with one or more illuminant operating devices, the sensor of which communicates with the central unit in standby mode via a single-wire bus that is different from the DC bus (as in reference to Figure 5 to Figure 7 described).
  • At least one of the illuminant operating devices can have two or more sensors which are supplied with energy by the central unit at least in standby mode via the same line and transmit sensor data to the central unit.
  • the central unit can also supply one or more illuminant operating devices via the DC bus which have no sensor and / or which do not transmit sensor data to the central unit via the supply line.
  • illuminant operating devices according to exemplary embodiments that communicate with the central unit at least in a standby mode via a supply line for the sensor can be combined with illuminant operating devices that have no sensor and / or that do not provide for communication between the illuminant operating device and the central unit a supply line is set up.
  • a sensor can communicate via the supply line, with which the sensor is supplied with energy in standby mode, not only as communication with a central unit, but also between lamp operating devices.
  • Devices and methods according to exemplary embodiments can be used, in particular, for the operation of illuminants which comprise LEDs, without being restricted thereto.

Landscapes

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

Claims (14)

  1. Procédé de communication entre une unité centrale (10 ; 80 ; 100) et un appareil de commande de moyen d'éclairage (20, 30 ; 81 ; 110), qui comprend un capteur (23, 33),
    dans lequel l'unité centrale (10; 80 ; 100) comprend une tension d'alimentation DC (51), pour l'alimentation de l'appareil de commande de moyen d'éclairage (20, 30 ; 81 ; 110), qui est mise à disposition au niveau d'un bus DC (3),
    dans lequel des données sont transmises entre l'unité centrale (10 ; 80 ; 100) et le capteur (23, 33) de l'appareil de commande de moyen d'éclairage (20, 30 ; 81 ; 110) par l'intermédiaire d'une ligne (3 ; 85) par l'intermédiaire de laquelle l'unité centrale (10 ; 80 ; 100) alimente en énergie le capteur (23, 33) de l'appareil de commande de moyen d'éclairage (20, 30 ; 81 ; 110),
    caractérisé en ce que
    l'unité centrale (10; 80 ; 100) génère, dans un premier état de fonctionnement, un niveau de tension (51) sur le bus DC (3) et, dans un deuxième état de fonctionnement, le niveau de tension (52 ; 56) sur le bus DC (3) réduit par rapport au premier état de fonctionnement et
    l'unité centrale (10 ; 80 ; 100) est couplée, par l'intermédiaire du bus DC (3), avec l'appareil de commande de moyen d'éclairage (20, 30; 81 ; 110) et le capteur (23, 33).
  2. Procédé selon la revendication 1,
    dans lequel les données comprennent des données de capteur qui sont transmises, dans le deuxième état de fonctionnement (23, 33), à l'unité centrale (10 ; 80 ; 100).
  3. Procédé selon la revendication 2,
    dans lequel, dans le deuxième état de fonctionnement, le capteur (23, 33) transmet les données du capteur à l'unité centrale (10 ; 100) par l'intermédiaire du bus DC (3).
  4. Procédé selon l'une des revendications 1 à 3,
    dans lequel le deuxième état de fonctionnement est un mode de veille.
  5. Procédé selon l'une des revendications 1 à 4,
    dans lequel les données sont transmises dans le deuxième état de fonctionnement, dans lequel le niveau de tension (52 ; 56) sur le bus DC (3) est réduit.
  6. Procédé selon l'une des revendications précédentes,
    dans lequel l'unité centrale (10 ; 80 ; 100) comprend un circuit de correction de facteur de puissance (12).
  7. Unité centrale pour l'alimentation d'appareils de commande de moyens d'éclairage (20, 30 ; 81 ; 110), dans laquelle l'unité centrale (10; 80; 100) est conçue pour générer une tension d'alimentation DC (51) pour l'alimentation de l'appareil de commande de moyen d'éclairage (20, 30 ; 81 ; 110) qui est mise à disposition au niveau d'un bus DC (3), dans laquelle l'unité centrale (10 ; 80 ; 100) comprend
    une borne (17 ; 84) pour l'alimentation d'un capteur (23, 33) d'un appareil de commande de moyen d'éclairage (20, 30 ; 81 ; 110) en énergie et
    un dispositif de communication (15 ; 102) qui est couplé avec la borne (17 ; 84) et qui est conçu pour recevoir et/ou pour envoyer, par l'intermédiaire de la borne (17 ; 84), les données à transmettre entre l'unité centrale (10 ; 80 ; 100) et le capteur (23, 33) de l'appareil de commande de moyen d'éclairage (20, 30 ; 81 ; 110),
    dans laquelle la borne (17) est conçue pour un couplage avec un bus DC (3) pour le couplage de l'unité centrale (10 ; 80 ; 100) avec l'appareil de commande de moyen d'éclairage (20, 30 ; 81 ; 110) et le capteur (23, 33) par l'intermédiaire du bus DC (3),
    caractérisé en ce que
    l'unité centrale (10 ; 80 ; 100) est conçue pour générer, dans un premier état de fonctionnement, un niveau de tension (51) sur le bus DC (3) et pour réduire, dans un deuxième état de fonctionnement, le niveau de tension (52 ; 56) par rapport au premier état de fonctionnement,
    dans laquelle le dispositif de communication (15; 102) est conçu pour recevoir, dans le deuxième état de fonctionnement, au niveau de la borne (17), les données de capteur provenant du capteur (23, 33).
  8. Unité centrale selon la revendication 7,
    dans laquelle le dispositif de communication (15; 102) est conçu pour recevoir, par l'intermédiaire de la borne (17 ; 84), des données de capteur provenant du capteur (23, 33) de l'appareil de commande de moyen d'éclairage (20, 30 ; 81 ; 110).
  9. Unité centrale selon la revendication 7 ou la revendication 8, comprenant
    une borne de bus (82) différente de la borne (84), qui est conçue pour un couplage avec un bus DC (3),
    dans laquelle la borne (84) est conçue pour un couplage avec une ligne (85) différente du bus DC (3) et
    dans laquelle l'unité centrale (10 ; 80 ; 100) est conçue, dans le deuxième état de fonctionnement, dans lequel un niveau de tension (52 ; 56) sur le bus DC (3) est réduite, pour alimenter en énergie le capteur (23, 33) par l'intermédiaire de la ligne (85) différente du bus DC (3).
  10. Unité centrale selon l'une des revendications 7 à 9,
    le dispositif de communication (15 ; 102) comprend un démodulateur (103) pour la démodulation d'un signal modulé (52, 55 ; 92, 95) reçu au niveau de la borne (17 ; 84) et/ou un modulateur (104) pour la génération d'une instruction de commande.
  11. Appareil de commande de moyen d'éclairage pour un moyen d'éclairage, plus particulièrement pour un module LED (4), qui est conçu pour recevoir une tension d'alimentation DC (51) en provenance d'une unité centrale (10 ; 80 ; 100) par l'intermédiaire d'un bus DC (3) et pour alimenter en énergie le moyen d'éclairage (4), comprenant
    un capteur (23, 33),
    une borne (21, 31, ; 86) pour une alimentation en énergie du capteur (23, 33) et
    une unité de communication (24, 34 ; 111) qui est couplée avec le capteur (23, 33) et qui est conçue pour envoyer et/ou recevoir, par l'intermédiaire de la borne (21, 31 ; 86) les données à transmettre entre le capteur (23, 33) de l'appareil de commande de moyen d'éclairage (20, 30 ; 81 ; 110) et l'unité centrale (10 ; 80 ; 100),
    dans lequel la borne (21, 31) est conçue pour un couplage avec le bus DC (3) pour le couplage de l'appareil de commande de moyen d'éclairage (20, 30 ; 110) avec l'unité centrale (10 ; 80 ; 100) et le capteur (23, 33) par l'intermédiaire du bus DC (3),
    caractérisé en ce que
    l'appareil de commande de moyen d'éclairage (20, 30; 110) est conçu, dans un premier état de fonctionnement, pour alimenter en énergie le moyen d'éclairage lorsque, sur le bus DC (3), il existe un premier niveau de tension (51) et, dans un deuxième état de fonctionnement, pour alimenter en énergie le capteur (23, 33) lorsque le niveau de tension (52) sur le bus DC (3) est réduit,
    dans lequel l'unité de communication (24, 34 ; 111) est conçu pour transmettre, dans le deuxième état de fonctionnement, les données de capteur provenant du capteur (23, 33) par l'intermédiaire de la borne (21, 31).
  12. Appareil de commande de moyen d'éclairage selon la revendication 11, comprenant
    un raccordement de bus (83) différent de la borne (84), qui est conçu pour un couplage avec un bus DC (3),
    dans lequel la borne (84) est conçue pour un couplage avec une ligne (85) différente du bus DC (3) et
    dans lequel le capteur (23, 33) est conçu pour être alimenté en énergie dans le deuxième état de fonctionnement par l'intermédiaire de la ligne (85) différente du bus DC (3).
  13. Appareil de commande de moyen d'éclairage selon la revendication 11 ou 12,
    dans lequel l'unité de communication (15; 111) comprend un modulateur (114) pour la génération d'un signal modulé (52, 54; 92, 94) en fonction d'un signal de sortie du capteur (23, 33) et/ou un démodulateur (113) pour la démodulation d'un signal modulé (52, 54 ; 92, 94) reçu au niveau de la borne (21, 31 ; 84).
  14. Système comprenant
    une unité centrale (10 ; 80 ; 100) selon l'une des revendications 7 à 10,
    au moins un appareil de commande de moyen d'éclairage (20, 30 ; 81 ; 110) selon l'une des revendications 11 à 13,
    au moins un module LED (4), qui est relié avec l'au moins un appareil de commande de moyen d'éclairage (20, 30 ; 81 ; 110) et
    un bus DC (3), qui est relié avec l'unité centrale (10 ; 80 ; 100) et l'au moins un appareil de commande de moyen d'éclairage (20, 30 ; 81 ; 110).
EP14784478.1A 2013-10-16 2014-10-16 Procédé et dispositifs de communication dans un système d'éclairage Active EP3058795B1 (fr)

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DE201310220965 DE102013220965A1 (de) 2013-10-16 2013-10-16 Verfahren und Vorrichtungen zur Kommunikation in einem Beleuchtungssystem
PCT/EP2014/072202 WO2015055759A1 (fr) 2013-10-16 2014-10-16 Procédé et dispositifs de communication dans un système d'éclairage

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DE102016119409A1 (de) * 2016-10-12 2018-04-12 Technische Universität Dortmund Kommunikationssystem
AT15929U1 (de) * 2017-04-21 2018-09-15 Tridonic Gmbh & Co Kg Beleuchtungssystem mit Signalgeneratoren

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Publication number Priority date Publication date Assignee Title
EP1555860A1 (fr) * 2004-01-14 2005-07-20 TridonicAtco GmbH & Co. KG Modules d'alimentation à courant continu pour dispositif d'éclairage

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DE102010031230A1 (de) * 2010-03-19 2011-09-22 Tridonic Ag Modulares LED-Beleuchtungssystem mit internem Bus

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1555860A1 (fr) * 2004-01-14 2005-07-20 TridonicAtco GmbH & Co. KG Modules d'alimentation à courant continu pour dispositif d'éclairage

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