EP3965533A1 - Module d'extension de mécanisme extracteur permettant de mettre à niveau un mécanisme extracteur - Google Patents

Module d'extension de mécanisme extracteur permettant de mettre à niveau un mécanisme extracteur Download PDF

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Publication number
EP3965533A1
EP3965533A1 EP21182319.0A EP21182319A EP3965533A1 EP 3965533 A1 EP3965533 A1 EP 3965533A1 EP 21182319 A EP21182319 A EP 21182319A EP 3965533 A1 EP3965533 A1 EP 3965533A1
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EP
European Patent Office
Prior art keywords
driver
expansion module
module
communication
network structure
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.)
Pending
Application number
EP21182319.0A
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German (de)
English (en)
Inventor
Alexander Niggebaum
Krister Bergenek
David CHILACHAVA
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.)
Ledvance GmbH
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Ledvance GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ledvance GmbH filed Critical Ledvance GmbH
Publication of EP3965533A1 publication Critical patent/EP3965533A1/fr
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H05B45/18—Controlling the intensity of the light using temperature feedback
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/345—Current stabilisation; Maintaining constant current
    • 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
    • H05B47/19—Controlling the light source by remote control via wireless transmission

Definitions

  • the present disclosure relates generally to electric drivers.
  • the present disclosure relates to driver expansion modules for upgrading a driver.
  • Electrical drivers are known for providing an output current or an output voltage, in particular for driving an electrical consumer.
  • precise control of the output current or output power is required.
  • relatively small deviations in the output parameters of LED drivers can lead to impairments in the quality of the light produced by an LED light engine.
  • these deviations in the output parameters of drivers, as well as aging processes and manufacturing tolerances in LEDs can lead to a noticeable deterioration in the light quality.
  • high-precision adjustable drivers are used, which is usually associated with high costs.
  • An object of the embodiments of the present disclosure is to provide a cost-effective way of controlling output parameters of electrical drivers.
  • a driver expansion module for retrofitting a driver or a driver module with at least one adjustable output parameter.
  • the driver extension module comprises an interface for connecting the driver extension module to the driver, and a control unit or logic, the control unit being configured to send control signals to a control input of the driver in order to adapt the at least one output parameter of the driver.
  • the control unit can include a microcontroller with a processor for data processing, with a memory unit for storing data and machine-readable codes for the processor, and with an interface for connecting the control unit to the communication bus.
  • the control unit or the microcontroller can also include one or more additional interfaces, in particular for configuring digital inputs and outputs and/or for translating measurement signals.
  • configuring the control unit to carry out certain actions means that, in order to carry out these actions, corresponding data and/or machine-readable instructions for the processor are stored in the memory unit of the control unit.
  • the driver can be designed in particular as an LED driver, in particular for driving an LED light engine.
  • the at least one output parameter of the driver can include an output current and/or an output voltage or output power of the driver.
  • the data stored in the storage unit can contain, in particular, LED-specific data, such as aging data for the LEDs used in an LED light engine.
  • the driver expansion module can thus be used to adjust the at least one output parameter of the driver, which can in principle be designed as a standard driver, taking into account the LED-specific data of the LED light engine or taking into account the aging processes of the LEDs, without having to change the driver having to replace a special high quality driver. Subsequent adjustment of the at least one output parameter can thus result in subsequent passive regulation or correction of the at least one output parameter of the driver on the basis of the data stored in the memory unit.
  • the driver expansion module can be designed to be connected to an output side of the driver in such a way that the at least one output parameter, in particular the output current and/or output voltage, is transmitted through the driver expansion module to the consumer or to the LED light engine is passed on.
  • the driver extension module can include a sensor system or measuring device for detecting or monitoring a current value of the at least one output parameter, wherein the control unit can be configured to adjust the at least one output parameter of the driver based on the detected current value.
  • driver expansion module a driver that does not itself have a device for monitoring its output parameters and/or their adjustment can easily be expanded by these functions, in particular monitoring or active adjustment or correction of output parameters.
  • the monitoring of the driver output or the at least one output parameter of the driver can also be used to compensate for any offsets that can arise due to component tolerances in particular. This means that drivers that do not originally provide for this offset compensation can be easily retrofitted with the help of the driver expansion module for offset correction.
  • the driver expansion module By retrofitting the driver with the driver expansion module, the driver be upgraded to meet requirements applicable to higher product classes.
  • the development of own variants of drivers for possible additional functions can be avoided by the driver extension module, in that the additional functions are made available by the driver extension module connected to a standard driver.
  • driver extension module it is possible to achieve precise output currents or voltages without changing the driver design.
  • no high-quality or highly intelligent drivers with special driver designs have to be used for this.
  • this is associated with high extra costs, since such drivers have to be specially developed and are typically more complex than drivers without this function.
  • Precise calibration measurements or active correction of drivers on the production line, which are also associated with high costs, can be avoided by retrofitting the driver with the driver expansion module.
  • control unit is designed to adapt or regulate the at least one output parameter both passively and actively, with the driver expansion module being able to be designed in such a way that it is possible to select or switch between the two operating modes, depending on the application. In particular, switching between the operating modes can take place through intervention on the part of the user or also automatically if, in particular, the control unit does not receive the information required for active regulation, in particular about the consumer.
  • the driver extension module can be designed to operate drivers with multiple output channels or multi-channel drivers, so that the control or correction function for one, two, more than two or all output channels of the multi-channel driver can be made.
  • the driver expansion module can be designed to correct or stabilize only part of the driver or only a subset of all output channels of a multi-channel driver. For example, in a system, in particular in a lighting system or LMS (Light Management System), with more than one driver or more than one driver channel, the at least one output parameter can be corrected independently of the number of driver channels, in particular in an application-specific or cost-optimized manner.
  • LMS Light Management System
  • the control unit can be configured to determine or calculate a current value of a junction temperature (JT) or temperature of a semiconductor junction of an LED, in particular an LED light engine, based on an output voltage of the driver detected by the sensors and the at least adjust an output parameter of the driver based on the current value of the JT.
  • JT junction temperature
  • any temperature dependencies of LED parameters can be taken into account when controlling the LED light engine.
  • phosphor combination and CCT Correlated Color Temperature
  • LEDs can exhibit different temperature-related color location shifts.
  • the information about the current values of the JT of the LED can be used to compensate for the temperature-dependent color location shifts in light engines with different colored LEDs, which are driven, for example, by output currents from different output channels of the driver, by adjusting the output currents.
  • the driver extension module can be configured with another compatible or the same or similar driver extension module to exchange data and/or signals.
  • the driver expansion module can have a communication interface for wireless and/or wired communication, so that communication with the other driver expansion module can take place via the communication interface.
  • the ability to exchange data or signals or messages with another driver expansion module enables coordinated operation of multiple driver expansion modules, particularly in a system with two or more drivers or a multi-driver system.
  • the driver expansion module can be configured so that communication with another driver expansion module can take place via a network interface of the driver for connecting the driver, in particular via a communication bus, to a base module of a network structure.
  • networks of such drivers retrofitted with driver expansion modules can be provided, which enable coordinated cooperation between the drivers.
  • a driver with at least one adjustable output parameter includes an interface, in particular a control interface, for connecting a driver extension module, in particular according to the first aspect, and a control input for receiving a control signal from the driver extension module, the driver being configured to set the at least one output parameter based on the control signal received from the driver extension module set.
  • the driver can include a network interface for connecting the driver to a base module of a network structure via a communication bus, in particular via an internal communication bus.
  • the base module of the network structure can in particular comprise a logic or logic unit which is configured to communicate with the communication bus, in particular with an internal communication bus of the network structure, to provide communication between the logic unit and one or more expansion modules or peripherals, in particular one or more Functional devices and / or communication modules to be connected to the functional expansion or functional provision of the network structure.
  • the communication bus can be designed in particular to transmit data or signals between the logic unit and the expansion modules.
  • the communication bus is designed to supply electrical energy to one or more expansion modules.
  • the communication bus can in particular include signal lines for serial communication or transmission of messages and/or supply lines for supplying energy to the expansion modules or peripherals.
  • the communication bus is formed as part of the base module.
  • the communication bus can be designed to be connected to a large number of functional devices and/or communication modules as expansion modules in order to provide desired functionalities.
  • the logic unit represents the central component or node of such a network structure, via which, in particular, all network communication within the network structure can take place.
  • the logic or the logic unit thus plays a central role in such a modular network structure.
  • the logic unit can forward, process and/or change information according to the intended operating scenarios.
  • the logic unit can in particular include a microcontroller with a processor for data processing, with a memory unit for storing data and machine-readable codes for the processor, and with an interface for connecting the logic unit to the communication bus.
  • the logic unit or the microcontroller of the logic unit can also include one or more additional interfaces, in particular for configuring digital inputs and outputs and/or for translating measurement signals.
  • configuring the logic unit to perform specific actions means that corresponding machine-readable instructions for the processor are stored in the memory unit of the logic unit to perform these actions.
  • the logic unit can be configured in such a way that the communication via the communication bus between the logic unit and the expansion modules can take place, in particular exclusively, using a system-internal or proprietary communication protocol.
  • the system-internal communication protocol can in particular complicate or prevent unauthorized access to the communication bus of the network structure.
  • the use of the system-internal or proprietary communication protocol can make it difficult or prevent the connection of non-certified or non-approved expansion modules to the base module.
  • the communication bus can thus serve as a protected, proprietary interface or ILB (Intra Luminaire Bus) for exchanging data or messages between the logic unit and the expansion modules or peripherals.
  • ILB Intelligent Luminaire Bus
  • the functional devices or peripherals can in particular include sensors or various sensors, drivers, in particular LED drivers, push buttons and/or other devices.
  • a functional device can be designed to detect or control the amount of light generated by the lamp.
  • a lamp can in particular have one or more light sources.
  • a lamp can include a light source for generating an indirect light, such as in the case of a diffusely luminous lighting device, and a light source for generating a direct light, such as in the case of a light emitter.
  • the amount of light can be controlled directly via the logic unit or via the LMS in which the luminaire is integrated.
  • the functional devices can also be used for data acquisition and/or transmission to the LMS.
  • the functional devices can include CO 2 and/or temperature sensors, which record or monitor the current CO 2 concentration or the temperature value, and supply the recorded data, for example for the purpose of building maintenance or maintenance.
  • this information can be used to optimize energy consumption or to increase the efficiency of operational processes.
  • the one or more communication modules may include a module configured for wireless communication.
  • the expansion module can include a ZigBee, Bluetooth, or DALI interface.
  • ZigBee ® is a registered trademark of the ZigBee Alliance.
  • Bluetooth ® is a registered trademark of the Bluetooth Special Interest Group.
  • DALI ® Digital Addressable Lighting Interface
  • the communication module can be designed in particular to act as an interpreter between the logic unit and the LMS by communicating with the LMS via a standard protocol and communicating with the logic unit via the internal or proprietary protocol of the communication bus.
  • An LMS enables customers to control different lights individually or in groups and to define light scenes ranging from simple to complex.
  • An expansion module can also represent a communication module and a functional device at the same time, for example a ZigBee module with an integrated PIR sensor (Passive Infrared Sensor).
  • the network structure around the logic unit as a central unit or base module can be set up or expanded in a modular and flexible manner.
  • An intelligent lighting bus system can thus be implemented with the base module, which allows the customer to determine the functionality, complexity and costs of operating devices or lights and to adapt them to their own needs.
  • the basic module represents a design platform which allows functional devices to be used freely and flexibly, if necessary in compliance with any norms, standards and requirements in the desired device network or light management system.
  • the logic unit can be configured to search via the communication bus for an expansion module connected to the communication bus. This search function enables the logic unit to determine whether a further extension module has been connected to the communication module, so that it can react accordingly if necessary.
  • the logic unit can be configured to an expansion module for configure the communication bus if the search reveals that the expansion module is connected to the communication bus. In particular, the logic unit can automatically configure a communication module connected to the communication bus as intended, so that, for example, the configuration of a communication module automatically initializes the network structure for an LMS.
  • the logic unit of the base module can have a further interface, in particular a plug & play interface, in particular for connecting a plug & play functional unit or a functional device which can be controlled directly by the logic unit via control signals.
  • a plug & play interface in particular for connecting a plug & play functional unit or a functional device which can be controlled directly by the logic unit via control signals.
  • an LED driver can be connected to the plug & play interface without microcontroller-based intrinsic intelligence and controlled directly by the logic unit.
  • the variables of the LED driver set in the factory can be saved directly in the logic unit.
  • Intelligent LED drivers which have their own microcontroller, can be connected to the communication bus or ILB interface.
  • the network structure can include one or more expansion modules, in particular one or more functional devices and/or communication modules, for functional expansion or for providing functions of the network structure, which are connected to the communication bus to provide communication between the logic unit of the base module and the one or more expansion modules can be connected.
  • the modular design of the network structure makes it possible to easily equip or retrofit the network structure with expansion modules.
  • the network structure can have at least one light source, in particular at least one LED light source, and at least one driver, in particular an LED driver, for Driving the at least one light source, wherein the at least one driver can be configured as a functional device that can be connected to the communication bus.
  • the network structure can be designed as a light.
  • the network structure can also include a plug & play LED driver that is connected to the plug & play interface of the logic unit and can be controlled directly by the logic unit. This means that simple LED drivers that are not able to communicate with the logic unit via the system-internal communication bus can be controlled directly by the plug-and-play interface.
  • the at least one expansion module can include at least one communication module for connecting the network structure, in particular via a standardized protocol, to a network system or LMS.
  • the at least one communication module can be designed as a communication module for wireless communication with a network system or LMS.
  • An expansion module of the network structure can be configured using the logic unit, the method including a search, in particular by the logic unit, for an expansion module connected to the communication bus.
  • This search function enables the logic unit to determine whether a further extension module has been connected to the communication module, so that it can react accordingly if necessary.
  • the method further includes configuring an expansion module for the communication bus if the searching reveals that the expansion module has been connected to the communication bus.
  • the logic unit can be an expansion module connected to the communication bus automatically configured as intended, so that, for example, by configuring an expansion module, the network structure can be automatically initialized for an LMS.
  • the method can include querying whether the expansion module found during the search is a communication module, wherein the expansion module can be determined to represent an existing functional device in the network structure through the communication module in a network if the query shows that the one found during the search expansion module is a communication module.
  • a communication module connected to the communication bus can thus be configured automatically, if necessary, for connecting the network structure to the network, in particular LMS. Representing may include notifying the communication module of the type of functional device present. Thus, if necessary, the information about the type of functional device can be automatically forwarded via the communication module to the network, in particular LMS.
  • the method can also include sending network-relevant or network-necessary factory settings of the functional device to the communication module. Thus, if necessary, the information about the factory settings of the functional device can be automatically passed on to the network, in particular LMS, via the communication module.
  • the network structure includes an expansion module designed as a light
  • the network structure allows the lights to be calibrated subsequently, in particular after they have been installed as intended.
  • the calibration data can be recorded on a lamp of the same type and transmitted to the network structure via an expansion module designed as an in particular online-capable communication module. This means that such lights can be calibrated later, regardless of the installation or manufacturer.
  • a driver system includes a first driver with at least one adjustable output parameter, the first driver having an interface for connecting a first driver expansion module and a control input for receiving a control signal from the first driver expansion module for setting the at least one output parameter.
  • the driver system also includes a second driver with at least one adjustable output parameter, the second driver having an interface for connecting a second driver expansion module and a control input for receiving a control signal from the second driver expansion module for setting the at least one output parameter, the first driver for driving a first electrical load and the second driver is designed to drive a second electrical load.
  • the first driver expansion module or the second driver expansion module can be designed in particular according to the first aspect of the present disclosure described above.
  • the first driver and the second driver can be designed in particular to control a first light engine or a second light engine.
  • the first driver and the second driver can be embodied as LED drivers for driving a first LED light source or LED light engine and a second LED light source or LED light engine.
  • the driver system thus allows simultaneous control of different LED light engines.
  • the first driver expansion module and/or the second driver expansion module can, in particular, each have a sensor system for detecting or monitoring a current value of at least one output parameter of the first or second Drivers include, wherein the first driver extension module or the second driver extension module can be configured to adjust the at least one output parameter of the first or the second driver based on the detected current value of the at least one parameter.
  • these functions can be provided in a simple, expanded manner in the course of retrofitting with the driver expansion modules.
  • the first driver expansion module and the second driver expansion module can also be configured to communicate with one another in order to exchange data and/or signals, in particular via an interface for wireless and/or wired communication. Because of the ability to exchange data or signals or messages between the first driver expansion module and the second driver expansion module, the driver system allows the first driver and the second driver to be controlled in a coordinated manner.
  • the driver system can also include a network structure with a base module and with a communication bus, in particular an internal communication bus, in particular according to one of the network structures described above, the first driver and the second driver being connected to the communication bus of the network structure, so that communication between the first driver expansion module and the second driver expansion module can be done via the first driver, via the second driver and via the communication bus of the network structure.
  • a network structure with a base module and with a communication bus, in particular an internal communication bus, in particular according to one of the network structures described above, the first driver and the second driver being connected to the communication bus of the network structure, so that communication between the first driver expansion module and the second driver expansion module can be done via the first driver, via the second driver and via the communication bus of the network structure.
  • the first driver extension module may be configured to send a control signal to the second driver extension module that causes the second driver extension module to drive the second driver based on the control signal received from the first driver extension module.
  • the first driver expansion module can include a logic or driver system logic unit, which is designed to control the second driver expansion module.
  • the driver system logic unit can in particular be part of the control unit of the first driver extension module or can be implemented in the control unit in terms of software and/or hardware.
  • the first driver expansion module and the second driver expansion module can each include a sensor system, wherein the second driver expansion module can be configured to transmit the sensor data recorded by the sensors of the second driver expansion module to the first driver expansion module, and the first driver expansion module can be configured to transmit control signals to send the second driver expansion module, which cause the second driver expansion module to control the second driver based on the sensor data recorded by the sensor system of the first driver expansion module and by the sensor system of the second driver expansion module.
  • the ability of the second driver expansion module to be driven by the first driver expansion module creates a clear hierarchical hierarchy between the driver expansion modules, which can simplify coordinated cooperation between different drivers.
  • the second driver extension module may also have a lower complexity than the first driver extension module exhibit. Because the majority of the computational power is borne by the first driver expansion module. It is thus possible to provide cost-optimized driver systems, in particular with a more powerful driver expansion module or master module and a less powerful module or slave module.
  • an LMS Light Management System
  • the LMS comprises a first light source, in particular a first LED light source or LED light engine, a second light source, in particular a second LED light source or LED light engine, and a driver system according to one of the aspects described above, wherein the first driver of the driver system is designed to drive the first light source and the second driver of the driver system is designed to drive the second light source, and the LMS comprises a network structure with a base module and a communication bus to which the first driver and the second driver are connected. Due to the fact that the drivers can be retrofitted with the driver extension modules, such an LMS is characterized by high functionality and low costs.
  • the network structure 1 comprises a base module 2 with a logic unit 3, a communication bus 4 and expansion modules 5, which are in a functional connection with the logic unit 3.
  • An expansion module 5 in the form of a Zigbee module 6 and an expansion module 5 in the form of a sensor module 7 are connected to the logic unit 3 via the communication bus 4 .
  • An expansion module 5 in the form of a The LED driver 8 is connected to the logic unit 3 via an interface 9 .
  • FIG. 1 also shows a light source 10 which is electrically connected to the LED driver 8 and can be driven by the LED driver 8.
  • the Zigbee module 6 is designed to be connected to an LMS 20 (in 1 represented symbolically) to be connected.
  • the network structure 1 of 2 includes a base module 2 with a logic unit 3 and expansion modules 5, which are functionally connected to the logic unit 3.
  • the functional connection between the logic unit 3 and the expansion modules 5 is shown schematically by double-sided arrows.
  • the expansion modules 5 can be functional devices as well as communication modules.
  • the network structure 1 represents a standalone lamp, with one of the expansion modules 5 being designed as an LED driver for controlling the light of the lamp.
  • the extension modules 5 are similar to those in 1 via a communication bus (in 2 not shown) connected to the logic unit 3.
  • the logic unit 3 can in particular be configured in such a way that the functional connection or communication via the communication bus between the logic unit 3 and the expansion modules 5 can take place via a system-internal or proprietary communication protocol.
  • all expansion modules 5 are connected to the logic unit 3 exclusively via a proprietary communication bus.
  • the logic unit 3 has an additional interface, in particular a plug & play interface, to which an LED driver in particular can be connected directly.
  • the plug and play interface can be protected as a proprietary Interface be designed so that the use of unauthorized or unqualified LED drivers or other expansion modules can be prevented.
  • the logic unit 3 can be configured in such a way that an LED driver which does not have any microcontroller-based intrinsic intelligence can be connected directly to the plug & play interface. In such a case, any factory-set variables of the LED driver can be stored directly in the logic unit, so that the LED driver can be controlled directly by the logic unit 3.
  • the connection to the logic unit 3 via the communication bus 4 is possible for the LED driver or for further expansion modules 5 which have their own intelligence or their own microcontroller.
  • the logic unit 3 can be designed to search for expansion modules 5 or peripherals via the communication bus, and to receive and process messages via the communication bus and send them to peripherals in a standalone mode, in particular without integrating the network structure 1 in an LMS to ship.
  • the network structure 1 of 3 essentially corresponds to network structure 1 of 2 and additionally has an expansion module in the form of a communication module 30, via which the network structure 1 can be connected to an LMS 20 (represented symbolically).
  • the further expansion modules 5, which are designed as functional devices, are connected to the communication module 30 via the logic unit 3.
  • the connection between the functional devices and the communication module 30 can be designed flexibly via the logic unit 3 .
  • the functional devices can be assigned to the communication module 30 via the logic unit 3 individually, in groups, or not assigned at all.
  • the logic unit 3 can be configured for this purpose be, after detecting a communication module 30 connected to the communication bus 4, to configure it accordingly and to initialize it for participation in a corresponding LMS 20.
  • the flowchart of 6 below shows the corresponding process flow.
  • the network structure 1 of 4 essentially corresponds to network structure 1 of 3 and additionally has a further communication module 30'.
  • the network structure 1 of 4 in addition to a first communication module 30, a second communication module 30', it being possible for the network structure 1 to be connected to an LMS 20 (represented symbolically) via the first communication module 30 and the second communication module 30'.
  • LMS 20 represented symbolically
  • the exemplary embodiment shown corresponds in particular to the case when the number of functional devices reaches the limit of a communication module for proper operation in an LMS, after which another communication module of the same type is attached to the logic.
  • the logic unit 3 can in particular be configured to be connected to a large number of communication modules 30, 30′ via the communication bus 4, so that correct operation of a number of functional devices in an LMS can be ensured.
  • the logic unit 3 can be configured to assign functional devices to the individual communication modules 30, 30′, so that the network structure 1 can be easily scaled by including further functional devices. For example, some expansion modules 5 or functional devices can be assigned to the first communication module 30 and other expansion modules 5' or functional devices to the second communication module 30'.
  • figure 5 shows schematically a network structure according to another embodiment.
  • the network structure 1 of figure 5 essentially corresponds to network structure 1 of 4 .
  • two different communication modules 30 , 30 ′ are used for this purpose, which can be configured by the logic unit 3 .
  • the logic unit 3 switches to multimaster mode operation, due to the simultaneous existence of two different LMSs 20, 20'.
  • Network setups described above can be configured to post-calibrate a luminaire for more precise color control and optimized maintenance.
  • the measurements can be carried out on lights with the same type of light provided and the calibration data for the existing installation can be made available as an online update.
  • an expansion module or peripheral is installed in the structure, or used if necessary, which has an "online update" capability (eg ZigBee peripheral).
  • this calibration data may include information about the warmest and coldest color temperature, the nominal luminous flux and the power of the luminaire, and/or a Color Rendering Index (CRI), as well as information about the manufacturer, etc.
  • CRI Color Rendering Index
  • FIG. 1 shows a flow diagram of a method for configuring an expansion module according to an embodiment.
  • This in 6 shown method 100 for configuring an expansion module or Peripherals can in particular in one of the network structures according to figures 1 , 3 , 4 , and 5 to be executed.
  • the exemplary embodiment of the method 100 shown is searched for after a start 105 of the method 100 in the method step 110 for a peripheral or an expansion module 5 connected to the base module 2 , in particular via the communication bus 4 .
  • the peripheral or expansion module 5 found is configured for the communication bus.
  • the expansion module 5 or peripheral is enabled to take part in the communication via the communication bus 4.
  • a query step 120 it is queried whether the expansion module or peripheral found is a communication module.
  • the communication module can be determined to represent a functional device already present in the network structure 1 in an LMS.
  • the peripheral or the communication module 30 is then notified of the type of functional device to be represented.
  • the factory settings of the functional device required for participation in the LMS are then sent to the communication module 30.
  • the peripheral or the communication module found is activated for participation in the LMS.
  • Method 100 for configuring the expansion module is then ended with method step 145 .
  • step 120 If query step 120 reveals that the expansion module is not a communication module, the expansion module is recognized in method step 150 as a functional device. By doing In the subsequent method step 155, the functional device is initialized and the method ends with method step 145.
  • FIG. 7 shows a flowchart of a method for calibrating a lamp.
  • the method 200 shown can be carried out in particular to calibrate a luminaire which has an internal architecture in accordance with one of the Figures 1 to 5 shown network structures.
  • the exemplary embodiment of the method 200 shown in the illustration is inquired 210 by the logic unit 3 as to whether a lamp is present or is connected to the communication bus. If query 210 results in the result that a lamp is present, then in method step 215 a lamp, in particular of the same lamp type, is measured for calibration.
  • method step 220 data for calibration are recorded and in method step 225 the recorded data for calibration are transmitted to an online-capable peripheral or communication module of the network structure.
  • step 230 the logic unit 3 is informed about the data received and the control, in particular the color control of the lamp, is adjusted accordingly.
  • step 235 the luminaire data for the LMS are made available and with method step 240 the method is ended. If the query in step 120 reveals that there is no lamp, in particular no lamp with the required lamp type, then in method step 245 a lamp is requested for measurement.
  • This calibration option allows customers to minimize the logistical effort associated with commissioning an LMS. Because usually the lights are made with a LED drivers individually calibrated in the factory. In the case of the lights described here, the lights can be purchased flexibly, in particular from desired manufacturers, and only subsequently calibrated, in particular in accordance with the calibration method described above.
  • the network structures based on the platform design described above offer a number of advantages.
  • Such network structures or systems can be scaled up in a simple manner, for example, by connecting further expansion modules, in particular functional devices and/or communication modules, to the communication bus.
  • functional devices can be used flexibly, depending on requirements, in different networks or LMSs or in a standalone device or light.
  • different functional devices can be integrated into an LMS both individually and simultaneously.
  • the modularity of the network structure simplifies the change from one LMS, for example an outdated one, to another, in particular one that is future-proof, without having to discard the functional devices that are already present.
  • the ability to subsequently calibrate the luminaires means that, in particular, precise light color control and high-quality Human Centric Lighting (HCL) can be implemented, for example by simulating daylight in a particularly realistic manner.
  • HCL Human Centric Lighting
  • the driver system 40 shown comprises a first driver 8 with a first driver expansion module 50 and a second driver 8' with a second driver expansion module 50'.
  • the drivers 8 and 8' are in the form of LED drivers with an adjustable output voltage or with an adjustable output current.
  • the first driver expansion module 50 and the second driver expansion module 50' are designed for retrofitting the first driver 8 or the second driver 8' and each have an interface 51, 51' for connecting the first driver expansion module 50 and the second driver expansion module 50' to the first driver 8 or to the second driver 8'.
  • the first driver expansion module 50 and the second driver expansion module 50' are each connected on the output side to the first driver 8 and to the second driver 8'.
  • FIG. 12 also shows a first light engine 10 and a second light engine 10', which can be driven by the driver system or by the first driver 8 and the second driver 8'.
  • the driver expansion modules 50, 50' each have a sensor system 52, 52' for detecting the output voltage of the first driver 8 or of the second driver 8'.
  • the first driver expansion module 50 also has a logic 53 or control unit.
  • the logic 53 is designed to evaluate the data recorded by the sensors 52, 52' and to send control signals to a control input (not shown) of the first driver 8 or the second driver 8' to control the first driver 8 or the second driver 8 ' to send.
  • the logic 53 can be configured to determine a current value of a JT of an LED based on an output voltage of the driver detected by the sensors 52, 52' and the output current of the first driver 8 or the second driver 8' according to the based on the adjust the current value of the JT.
  • the 9 shows a relationship between temperature and forward voltage of an LED.
  • the dependence shown between the temperature or JT of the LED and the forward voltage based on the relative change in the forward voltage ⁇ V F /V shows that there is a clear correlation between the forward voltage and the JT. If the forward voltage is measured during operation of the LED, the JT of the LED can be calculated from this, for example using a look-up table stored in the memory unit, in which this dependency between the forward voltage and the JT is stored.
  • the 10 shows a relationship between temperature and color shift of an LED.
  • the dependence shown between the temperature or JT of the LED and the color shift based on the relative change in the color coordinates ⁇ C x and ⁇ C y of the forward voltage shows that the color locus of the LED shifts at different temperatures. In the case of a light engine with warm and cold white LEDs for mixing a defined color temperature, this leads to a deviation from the target value. If the temperature and the color shift of both LED types are known, the control signal is adjusted, in particular with a two- or multi-channel driver or with a driver system according to 8 , so that unwanted color shifts can be suppressed or reduced.
  • driver expansion modules Cost savings result from the fact that the drivers can be retrofitted with the driver expansion modules. Because drivers without driver expansion modules can still be used, especially for applications with low requirements for driver functionality.
  • driver expansion modules are not limited to a specific driver type, but can be used across different driver types.
  • the output voltage and/or output current of the driver By detecting the output voltage and/or output current of the driver, information about the output power can also be obtained, which can be used, for example, for energy reporting or energy consumption monitoring and control. Furthermore, the information about the output voltage can be used to generate over-temperature protection for the light engine. In this case the current is regulated down when the forward voltage measurement shows an excessively high LED temperature.
  • the data analysis and control of the driver takes place in the additional module or driver extension module.
  • the measurements can also be used for active and precise power derating or power throttling of the driver, whereby the maximum setpoint value of the current is limited with the measured actual value of the voltage so that the nominal power of the driver is not exceeded.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
EP21182319.0A 2020-09-07 2021-06-29 Module d'extension de mécanisme extracteur permettant de mettre à niveau un mécanisme extracteur Pending EP3965533A1 (fr)

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US11818816B2 (en) 2023-11-14
CN114158154B (zh) 2024-04-26

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