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    • 专利摘要:
    A device (40) is set up to determine the energy consumption of consumers (11-13) of a lighting system (10). The device (40) comprises a processing device which is set up to determine an energy consumption of the consumer (11-13) as a function of at least one control value of a consumer (11-13) of the lighting system (10).
    公开号:AT16893U1
    申请号:TGM400/2015U
    申请日:2015-12-22
    公开日:2020-11-15
    发明作者:Dr Böhnel Michael
    申请人:Zumtobel Lighting Gmbh；
    IPC主号:
    专利说明:

    description
    DEVICE AND METHOD FOR DETERMINING ENERGY CONSUMPTION FOR CONSUMERS OF A LIGHTING SYSTEM
    TECHNICAL AREA
    [0001] Embodiments of the invention relate to devices and methods for determining the energy consumption of consumers of a lighting system. Embodiments relate in particular to such devices and methods with which the energy consumption of lights or other loads of a lighting system that are controlled via a control channel can be determined.
    BACKGROUND
    The increasing automation of lighting systems and their design for communication with other units offer new perspectives in providing control options for such units. To increase user comfort, for example, in a lighting system that includes several lights, the lights can be controlled via a control channel, for example a DALI (Digital Addressable Lighting Interface) bus. This enables the definition of different light scenes or the individual or group control of lights.
    The determination of the energy consumption of individual consumers or groups of consumers can be desirable for various reasons. For example, information about the energy consumption of individual luminaires or groups of luminaires may be required for consumption optimization, billing or for other reasons.
    To record the energy consumption of individual lights, the control gear of each light can be equipped with an energy meter specifically provided for the light. This increases the cost of the lighting system. In addition, retrofitting with operating devices of this type would entail a relatively high installation effort, in which operating devices or lights without an energy meter would have to be replaced by those with an energy meter.
    SUMMARY
    There is a need for devices, systems and methods that bring improvements with regard to the disadvantages described above. In particular, there is a need for such devices, systems and methods in which the energy consumption of several consumers of a lighting system can be recorded for each individual consumer without each operating device having to be equipped with a separate energy meter.
    According to embodiments, a device for detecting the energy consumption is provided, which is set up to determine the energy consumption of a consumer of a lighting system as a function of set values.
    The device can be coupled to a control channel, for example a DALI (Digital Addressable Lighting Interface) bus, in order to listen in on control commands directed to the consumer and to determine the current control value of the corresponding consumer therefrom. The device can be set up to determine the energy consumption from the set values, a power consumption of the corresponding consumer assigned to the different set values, and a time in which the load has the corresponding set value.
    [0008] The control values can be dimming values and / or color values of a lamp, for example.
    [0009] The device can have an interface to an energy meter or to another energy consumption or power recording device. The device can be used for a
    be set up automatic calibration, in which they learn for each of the several consumers the different control values each assigned power consumption of the corresponding consumer. For this purpose, the device can communicate with an energy meter in a wireless or wired manner, at least in a calibration phase, in order to learn which power consumption is assigned to the different control values of the corresponding consumer.
    For the purpose of calibration, a consumer can be specifically controlled in such a way that it sequentially accepts different dimming values, different color values and / or different combinations of dimming values and color values. The device can interrogate the energy meter several times in order to determine the power consumption for each of the dimming values, color values and / or for each different combination of dimming values and color values in comparison to a state in which the consumer has no energy consumption.
    The calibration can also take place during operation. By querying the energy meter, the device can determine the total power consumption for each of the states of the multiple consumers, for example the multiple lamps, and can calculate the power consumptions assigned to the different control values of a consumer.
    A device for determining an energy consumption for a lighting system is specified according to one embodiment. The lighting system has several consumers that can be lights and / or other consumers. The device comprises a processing device which is set up to determine an energy consumption of the consumer as a function of at least one control value of a consumer of the lighting system.
    The device can be set up for a calibration in which a respectively assigned power consumption of the consumer is determined automatically for several control values of the consumer.
    The device may comprise an energy meter interface for communication with an energy consumption or power recording device.
    [0015] The energy meter interface can be a wireless interface.
    [0016] The energy meter interface can be set up to communicate with the energy consumption or power recording device in accordance with an IP-based protocol. The IP-based protocol can be Zigbee, Wired Ethernet or another protocol.
    The device can be set up to carry out the calibration as a function of the energy meter signals received at the energy meter interface.
    The device can be set up to determine, depending on the energy meter signals received at the energy meter interface, the duration over which an integration takes place during the calibration. In the case of lower power consumption, the device can be set up to automatically set the integration time to a longer value than in the case of greater power consumption. This means that a reliable calibration can also be achieved if the control values correspond to a low dimming level.
    [0019] The energy meter signals can include information about a total energy consumption or a total power consumption of a system which has the plurality of consumers of the lighting system.
    The energy consumption or power recording device can, but does not have to be set up in such a way that it only records the total energy consumption of the multiple consumers of the lighting system.
    The device can be set up to carry out the calibration while consumers not belonging to the lighting system, whose energy consumption is also recorded by the energy consumption or power recording device, have a predefined power consumption that may be constant or otherwise known.
    The device can be set up to carry out the calibration while consumers not belonging to the lighting system, whose energy consumption is also recorded by the energy consumption or power recording device, have a constant power consumption. This particularly simplifies the calibration, since changes in the energy consumption recorded by the energy consumption or power recording device can be clearly assigned to a change in the control value of the consumers of the lighting system.
    The device can be set up to carry out the calibration based on a change in energy consumption detected by the energy consumption or power detection device that occurs in response to a change in the control value for the consumer.
    [0024] The device can be set up to automatically determine a power consumption of the consumer assigned to different set values of the consumer during calibration for each of the multiple consumers of the lighting system that can be controlled via a control channel. For example, for each luminaire in the lighting system that can be controlled via a DALI bus or another control channel, by querying the energy consumption or power recording device, it can be determined which power consumption the luminaire for different dimming values, different color values and / or different combinations of dimming value and color value having.
    The device can be set up to determine control values of the plurality of consumers during the calibration by evaluating control signals for the plurality of consumers. The control signals can be overheard by the device while they are transmitted on a DALI bus or another control channel.
    The device can comprise a storage medium for non-transiently storing a result of the calibration.
    The device can be set up to determine the energy consumption of the consumer as a function of a result of the calibration and time-sequentially set control values of the consumer and the duration for which a control value is set in each case.
    The device can be set up to query tariff information from the energy consumption or power recording device via the energy meter interface. The tariff information can include, for example, information about a respectively applicable tariff, for example day or night tariff.
    The device can be set up to determine the energy consumption of the consumer as a function of a result of the calibration, time-sequentially set control values of the consumer, the duration for which a control value is set and the tariff information.
    The device can have a control channel interface. The device can be set up to determine the at least one manipulated variable of the consumer from signals detected at the control channel interface.
    [0031] The control channel interface can be set up to acquire control signals directed to the individual of the plurality of consumers.
    The control channel interface can be set up to listen in on the control signals transmitted on a control channel from a control device to the consumer. The control channel interface can be set up to monitor DALI control signals on a DALI bus.
    The control channel interface can be set up to enable bidirectional communication of the device with the lights in order to query control values.
    The device can be set up to determine the energy consumption of the plurality of consumers individually for each of the plurality of consumers and / or for each of several groups of consumers of the lighting system.
    The device can be set up to determine the energy consumption for each of the
    to save several consumers non-volatile. The device can initiate the storage locally in a memory of the device or remotely from the device, for example via a wide area network.
    The device can comprise an output interface for outputting the energy consumption determined for each of the plurality of consumers individually and / or for each of several groups of consumers of the lighting system. The output interface can be set up for the wireless or wired transmission of the energy consumption determined for each of the multiple loads.
    The output interface can be set up to output the consumption in accordance with an IP-based protocol. The IP-based protocol can be Zigbee, Wired Ethernet or another protocol.
    A lighting system according to an embodiment comprises a plurality of consumers and a device for determining an energy consumption according to an embodiment.
    The lighting system can include a control device which is set up to generate control signals for the plurality of consumers. The device for determining the energy consumption can be set up to monitor the control signals and to determine the energy consumption as a function of the control signals for the plurality of consumers.
    The lighting system can comprise a control channel with which the control device, the plurality of consumers and the device for determining the energy consumption are coupled.
    The control channel can be a DALI bus. [0042] The plurality of consumers can comprise a plurality of lights.
    At least one of the consumers whose energy consumption is determined can be a consumer different from a lamp and an operating device. This consumer or these consumers that are not lights can be sensors or a control device, for example.
    A system according to an embodiment comprises a lighting system with a device for determining the energy consumption according to an embodiment and an energy or power detection device for detecting a total energy consumption or total power consumption of consumers of the system.
    The energy or power detection device can be an energy meter that detects an energy consumption that is either only assigned to the lighting system or that can also include other consumers that cannot be controlled in the lighting system. For example, the energy meter can be a central energy meter that records the total consumption of all consumers in a part of the building or in an entire building. The logical correlation of control values of the multiple consumers of the lighting system and changes in the power consumption, as reflected in the count values of the energy meter, can be used to determine which power consumption is to be assigned to the different consumers of the lighting system. The device can use this information to determine the energy consumption at the level of an individual consumer.
    [0046] The energy meter can be connected in series to the supply. The energy meter can be coupled to supply lines via a transformer.
    A method for determining an energy consumption for consumers of a lighting system having a plurality of consumers is specified according to a further exemplary embodiment. The method includes determining an energy consumption of a consumer of the lighting system as a function of at least one control value of the consumer.
    In the method, an automatic calibration can be carried out, in which a respectively assigned power consumption of the consumer is determined automatically for several control values of the consumer.
    The automatic calibration can include processing of control signals for the plurality of consumers and of energy meter signals. The energy meter signals can include information about a total energy consumption or a total power consumption of a system that has the plurality of consumers of the lighting system.
    The automatic calibration can automatically determine the duration over which the power consumption is integrated during the calibration. If the power consumption is lower, the integration time can automatically be set to a longer value than if the power consumption is greater. This means that a reliable calibration can also be achieved if the control values correspond to a low dimming level.
    Further features of the method and the effects achieved thereby correspond to the effects described with reference to the device.
    The method can be carried out by the device, the lighting system or the system according to an embodiment.
    According to embodiments of the invention, the energy consumption of each of the several consumers can be determined with only one device for determining the energy consumption, which is coupled to a control channel via which several consumers of a lighting system can be controlled. There is no need to replace all operating devices with operating devices equipped with an energy meter.
    In exemplary embodiments, it is possible to automatically learn which power consumption is assigned to the different control values, for example dimming values, color values or a combination of dimming and color values, of a lamp. For this purpose, the device for determining the energy consumption can query an energy meter at least in the calibration phase in order to determine how different control values affect the power consumption of a consumer.
    BRIEF DESCRIPTION OF THE FIGURES
    The invention is explained in more detail below with reference to the accompanying drawings using preferred exemplary embodiments.
    FIG. 1 shows a lighting system with a device for determining energy consumption according to an exemplary embodiment.
    FIG. 2 is a block diagram of a device for determining an energy consumption according to an exemplary embodiment.
    FIG. 3 is a block diagram of a device for determining an energy consumption according to an exemplary embodiment.
    FIG. 4 is a flow diagram of a method according to an exemplary embodiment.
    FIG. 5 shows a lighting system with a device for determining an energy consumption according to an exemplary embodiment.
    FIG. 6 shows a lighting system with a device for determining an energy consumption according to an exemplary embodiment.
    FIG. 7 shows a lighting system with a device for determining energy consumption according to an exemplary embodiment.
    FIG. 8 is a flow diagram of a method according to an exemplary embodiment. FIG. 9 is a flow chart of a method according to an exemplary embodiment. FIG. 10 is a flow diagram of a method according to an exemplary embodiment.
    DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS [0066] The invention is described below with reference to exemplary embodiments
    described in more detail on the figures, in which identical reference symbols represent identical or corresponding elements. The features of different exemplary embodiments can be combined with one another, unless this is expressly excluded in the description. Even if some exemplary embodiments are described in more detail in the context of specific applications, for example in the context of interior lighting using LED-based lighting means, the exemplary embodiments are not limited to these applications.
    FIG. 1 is an illustration of a system 1 which comprises a lighting system 10 and an energy meter 2. As will be described in more detail, the lighting system 10 has a device 40 for determining an energy consumption of individual loads 11-13 of the lighting system 10. The device 40 can be coupled to a control channel 15 in order to determine current control values of the consumers 11-13 and, depending on the current control values, the duration in which these control values are active, and data relating to the relationship between control value and power consumption of the determine the respective consumer 11-13 to determine the energy consumption individually for each of the consumers 11-13.
    The device 40 can be connected to the energy meter 2 via a wireless or wired interface. The device 40 can be set up to determine at least in one calibration phase which power consumption the individual consumers 1113 for different control values depending on the respectively applicable control values of the consumers 11-13 and depending on the resulting change in the total power consumption recorded by the energy meter 2 exhibit.
    The energy meter 2 can be connected in series with the supply. The energy meter 2 can be connected to supply lines 3, 4 via a coupler or other U-transmitter.
    At least two of the consumers 11-13 can have configurations that differ from one another. For example, at least two of the loads 11-13 can include different operating devices and / or lighting means. While several of the consumers 11-13 can each be a lamp, at least one of the consumers whose energy consumption is determined can also be different from a lamp and an operating device. For example, at least one of the loads whose energy consumption is determined can be a control device, a sensor, an input interface or another input element.
    The lighting system 10 comprises a plurality of lights 11-13. Each of the lights 11-13 includes an operating device 21-23, each of which is connected on the output side to an associated lighting means 24-26. The operating devices and lamps do not necessarily have to be combined in luminaires. The lighting means 24-26 can, for example, each be designed as an LED module or can comprise one or more light-emitting diodes. The lighting means 2426 can each comprise a light-emitting diode (LED) or a plurality of LEDs. The LED or LEDs can comprise inorganic light-emitting diodes, organic light-emitting diodes or a combination of inorganic light-emitting diodes and organic light-emitting diodes. The lighting means 24-26 can for example be mounted on a ceiling 2 or a wall of a building.
    The operating devices 21-23 can each be set up to supply the lighting means. The operating devices 21-23 can each be designed as an LED converter. The operating devices 21-23 can each comprise a direct current / direct current (DC / DC) converter. An input of each operating device 21-23 can be set up for a connection with supply lines 3, 4.
    The lighting system 10 can comprise a control channel 15 for the transmission of control signals. The control channel 15 can optionally also be used to transmit sensor signals or other status information. The control channel 15 can comprise a bus. Instead of a bus system, the different loads 11-13 of the lighting system 10 can also be in communication with a control device 14 in another way.
    The control channel 15 can be designed as a DALI bus. The lights 11-13, the control device 14 and the device 40 for determining the energy consumption and optionally other devices of the lighting system 10 can each be coupled to the control channel 15.
    The device 40 for determining the energy consumption can be set up to listen in on control signals that the control device 14 sends via the control channel 15 to the operating devices 2123 of the loads 11-13. The device 40 for determining the energy consumption can determine the respective control values of the consumers 11-13 from the control signals. The device 40 can determine the energy consumption individually for each of the consumers 11-13 depending on the current control values, the duration in which these control values are active, and data that determine the relationship between the control value and power consumption of the respective consumer 11-13.
    The control device 14 can be set up to transmit dimming values, color values, combinations of dimming and color values or other control values to the loads 11-13 via the control channel 15. The control device 14 can be set up to control the consumers 11-13 individually and / or in groups. For example, it can be controlled in DALI groups.
    The device 40 for determining the energy consumption can be designed in such a way that the control signals for the loads 11-13 are recorded and analyzed at a control channel interface. Using a stored performance profile that assigns the control value to a power consumption, the device 40 for determining the energy consumption can determine the instantaneous power. The device 40 for determining the energy consumption can alternatively or additionally also actively query the current control value of each of the loads 11-13.
    The performance profile, which indicates an assignment of dimming value or other control values to the power consumption, can be determined via a calibration process. The control value of the lamp and the total energy consumption, which is determined by the energy meter 2, can be logically linked to one another.
    The calibration can, for example, be transparent, so that changes in the dimming values and / or color values that can be recognized by the user are carried out specifically for calibration, or can be carried out visibly at times when the calibration does not disturb the user, for example at night. During the calibration, the current total energy consumption or the current total power consumption can be provided by the energy meter 2. The energy meter 2 can for example have an optical interface or another wireless interface in order to transmit the current total energy consumption or the current total power consumption to the device 40 for determining the energy consumption in the form of digitally coded values. Since the total value is displayed and thus also unknown consumers, for example consumers not belonging to the lighting system 10, can be included, the calibration can take place in such a way that these unknown consumers have a constant power consumption while the calibration takes place. The calibration can be improved by taking several measurements over a period of time. For example, changes that are not caused by changes in the control value of a consumer 11-13 of the lighting system can be recognized and remain unconsidered when determining the assignment of control values to power consumption. Alternatively or additionally, averaging or other filtering can take place in which the change in the total power consumption, which is caused by a certain change in the manipulated variable of a consumer, is determined several times by querying the energy meter 2 and then averaged, filtered or processed in some other way.
    The power profile, which assigns a power consumption to each of the control values of a consumer, can also be determined in a completely transparent manner from many measurements and the system of equations resulting therefrom. This can be done, for example, in normal use. The calibration is advantageously carried out again in such a way that the consumers not controlled via the control channel 15 cause a constant or a known power consumption, which can also vary over time.
    The device 40 for determining the energy consumption can be set up to automatically determine the integration time over which the power consumption is integrated during the calibration. In the case of a lower power consumption, the device 40 for determining the energy consumption can be set up to automatically set the integration time to a longer value than in the case of a greater power consumption. This means that a reliable calibration can also be achieved if the control values correspond to a low dimming level. The power consumption can be determined from the signals provided by the energy meter 2. The calibration can be carried out automatically by the device 40 for determining the energy consumption in such a way that more time is used to determine the performance profile for control values that correspond to a low power consumption than for control values that correspond to a higher power consumption.
    The device 40 for determining the energy consumption determines the energy consumption per consumer using the control values set when the lighting system 10 is in use and the information that assigns an associated power consumption to each control value. The device 40 for determining the energy consumption can make a logical assignment of the loads 11-13 to groups. The groups can be defined via a user interface, for example for billing. The group assignment can also be recognized from control signals determined via the control channel 15.
    The energy consumption, which is determined individually for each consumer and / or for groups of consumers 11-13, can be made available to a reader or to another data processing unit via an output interface.
    The configuration and mode of operation of the device 40 for determining the energy consumption is described in more detail below with reference to FIG. 2 to FIG. 10. In each of the configurations described, the device 40 for determining the energy consumption can be configured as a device that has a housing and can be communicatively coupled to the control channel 15. The device 40 for determining the energy consumption can also be structurally integrated into the control device 14 or one of the consumers 11-13. A configuration in which the device 40 for determining the energy consumption is configured as a separate device facilitates retrofitting.
    The described functions of the device 40 can also be distributed over several separate devices. For example, the determination of the assignment of control values to power consumption for consumers 11-13 can be carried out by a device that only needs to be present during calibration. The result of the calibration can be transmitted to a second device that uses the assignment of control values to power consumption for consumers 11-13 in order to record the current control value for each of the several consumers 11-13 and depending on the power consumption assigned to this control value and the duration in which this control value is valid to determine the corresponding increase in the energy consumption of this consumer.
    The device 40 for determining the energy consumption can be set up to determine the energy consumption assigned to the individual consumers 11-13 of the lighting system 10 by processing the control values of the consumers 11-13. A measurement of the energy flow in the supply line 3, 4 or from the supply lines 3, 4 does not have to take place for this. The device 40 for determining the energy consumption can be set up such that it is not coupled to the supply line 3, 4 or has no unit for measuring the energy flowing via the supply line 3, 4.
    The device 40 for determining an energy consumption does not have to determine the associated power consumption for each possible control value of each of the multiple loads 11-13 by using data from the energy meter 2. For example, the device 40 can determine the power as a function of the dimming value and / or color value for some interpolation points depending on the data from the energy meter 2 in the calibration and then use an interpolation and / or extrapolation outside the interpolation points. As an alternative or in addition, the performance profile for each of the consumers 11-13 can be called up or from the operating devices 21-23
    be programmed into the device 40 for determining an energy consumption during the configuration of the lighting system.
    The device 40 for determining energy consumption can be set up to take tariff information into account when determining consumption. The tariff information can include, for example, information about a respectively applicable tariff, for example day or night tariff. The device 40 can query the tariff information from the energy meter 2. For example, the device 40 can query the energy meter 2 as to which tariff is currently valid. The consumption information can be determined by the device 40 for determining an energy consumption not only in energy units, but also in consumption costs.
    The device 40 for determining an energy consumption can be set up to determine the energy consumption of a consumer or a group of consumers depending on a result of the calibration, time-sequentially set control values of the consumer, the duration for which a control value is set and the tariff information to determine.
    FIG. 2 is a block diagram of a device 40 for determining an energy consumption of consumers 11-13 of a lighting system 10 according to an exemplary embodiment. The device 40 for determining an energy consumption can generally be set up to use control values of the loads 11-13 in order to determine the energy consumption from the control values and information about the power consumption respectively assigned to the control values. The device 40 for determining an energy consumption can alternatively or additionally be set up to determine the respective power consumption of the consumer for a plurality of control values of a consumer with queries from the energy meter 2.
    The device 40 comprises a processing device 42. The processing device 42 is set up to determine the energy consumption of the consumer 11-13 as a function of control values of a consumer 11-13. The processing device 42 can multiply the time in which a control value is valid by a power consumption for this consumer assigned to the control value in order to determine by which increment the energy consumption for this consumer must be increased. The energy consumption can be stored in a non-volatile manner in a memory 46. The energy consumption can be updated by monitoring the manipulated variable changes and using the performance profile of the corresponding consumer.
    The processing device 42 can comprise one or more integrated semiconductor circuits. The processing device 42 may comprise one or more of a processor, a microprocessor, a controller, a microcontroller, an application-specific special circuit, or a combination of the named or other integrated semiconductor circuits.
    The device 40 can comprise a timer or clock generator 45, which can be coupled to the processing device 42 or integrated therein. The processing device can determine, depending on the time signal of the timer or clock generator 45, how long a control value was valid for a consumer.
    The device 40 can be configurable in order to determine the energy consumption not only for an individual consumer, but alternatively or additionally for a group of consumers. In this way, several consumers can be combined for billing purposes, for example, in order to determine their cumulative energy consumption. Via a user interface (not shown in FIG. 2) or the control channel 15, information can be transmitted which indicates which consumers belong to a group. The groups for which the energy consumption is determined can be identical to DALI groups, but can also be defined independently of the DALI groups of the lighting system 10.
    The device 40 can comprise a memory 44 for storing power profiles of the consumers 11-13. The performance profiles can be determined automatically by the device 40 in a calibration. The performance profile of a consumer indicates for several control values, for example several dimming values and / or color values, which power consumption
    assumption of the consumer when operating with this control value. To determine the power profiles, the device 40 can query the current meter reading of an energy meter 2 multiple times sequentially in order to determine the power consumption that results for a control value of a consumer 11-13, for example in comparison to a state in which there is no light output.
    The device 40 can comprise an energy meter interface 41 for communication with the energy meter 2. The energy meter interface 41 can be an optical interface or another wireless interface, for example a radio interface. The device 40 can be configured to send queries to the energy meter 2 via the energy meter interface 41 to determine the performance profiles in the calibration and / or to receive information about a current meter reading of the energy meter via the energy meter interface 41.
    The energy meter interface 41 can be set up to communicate with the energy meter 2 in accordance with an IP-based protocol. The IP-based protocol can be Zigbee, Wired Ethernet or another protocol.
    The device 40 may include a control channel interface 43. The device 40 can be set up to determine from signals received at the control channel interface 43 which control value is currently set for a consumer and / or which new control value a consumer should accept.
    The control channel interface 43 can be set up to listen in to control signals for the loads 11-13 transmitted via the control channel 15. The processing device 42 can determine a new control value for the respective consumer from the control signals. The control channel interface 43 can in this case be designed as a unidirectional interface.
    The device 40 can alternatively or additionally be set up to actively query the current control value of one or more consumers 11-13 via the control channel interface 43. The control channel interface 43 is designed as a bidirectional interface in this case.
    The time-variable control values that are determined via the control channel interface 43 for the consumers 11-13 are used by the processing device 42 to determine how the time-integrated energy consumption of the respective consumer increases. The energy consumption stored in memory 46 can be updated. The time-variable control values that are determined via the control channel interface 43 for the loads 11-13 can alternatively or additionally also be used by the processing device 42 for the calibration in which the power profiles 44 are generated.
    The device 40 can be designed as a device that has a housing and is designed for coupling to the control channel 15 of the lighting system.
    The device 40 of Figure 2 can be set up when reading the energy consumption, the energy consumption of several consumers and / or the energy consumption of one or more groups via the control channel interface 43 to a readout device coupled to the control channel 15 and / or via the also output wireless interface 41 used for communication with the energy meter.
    Figure 3 is a block diagram of a device 40 for determining an energy consumption of consumers 11-13 of a lighting system 10 according to an embodiment. Elements that can have the configuration described with reference to FIG. 2 are denoted by the same reference symbols as in FIG. 2.
    The device 40 can include an output interface 47 in order to output the energy consumption of the plurality of consumers and / or the energy consumption when reading out the energy consumption. The output interface 47 can be a wireless interface for communication with a readout device. The output interface 47 can optionally be an optical one
    or comprise an acoustic output unit in order to output the energy consumption visually or acoustically.
    FIG. 4 is a flow chart of a method 50 according to an exemplary embodiment. The method 50 can be carried out automatically by the device 40 for determining an energy consumption.
    In step 51, the device 40 determines performance profiles of several consumers. Determining the performance profiles of the plurality of consumers can include an interrogation of an energy meter 2. To determine the power profile, for each consumer for at least two control values of the consumer, two queries from the energy meter 2 can be used to determine which power consumption the consumer has for the corresponding control value. The control values of all other consumers can be kept constant in order to enable the performance profile to be determined in a simple manner. As an alternative or in addition, to determine the performance profile of several consumers, the control values of several consumers can also be changed at the same time in order to scan a multi-dimensional data space that is spanned by the control values of the several consumers.
    The determination of the performance profile in the calibration in step 51 does not require that the associated power consumption is determined by using data from the energy meter 2 for each possible control value of each of the multiple consumers 11-13. For example, during the calibration, the power can be determined as a function of the dimming value and / or color value for some interpolation points as a function of the data from the energy meter 2. An interpolation and / or extrapolation outside of the support points can then be used. As an alternative or in addition, the performance profile for each of the loads 11-13 can be called up from the operating devices 21-23 or programmed into the device 40 for determining an energy consumption when the lighting system is configured.
    In step 52, the energy consumption is determined for each of several consumers, for example for each of several lights. For this purpose, it is monitored as a function of time which control values are set for each of the consumers. In combination with the performance profile of the consumer and the time-dependent change in the control value, it is determined which energy consumption the consumer has in the corresponding period of time. The non-volatile stored previous value of the energy consumption can be incremented accordingly. These functions can be carried out for each of several consumers.
    In step 52, the energy consumption of groups of consumers can optionally also be determined. For this purpose, the energy consumption determined for each individual consumer can be added up.
    In step 52, the performance profiles can optionally also be improved. Thus, even after the calibration has been completed in step 51, the meter reading of the energy meter 2 can be queried and logically linked with the respectively set control values. In this way, changing operating conditions, for example a higher required cooling capacity at a higher ambient temperature, can also be taken into account and the performance profiles can be adjusted accordingly.
    The energy meter 2 can be an energy meter which detects a total energy consumption only of the consumers 11-13 of the lighting system that can be controlled with the control channel 15. However, other consumers, for example not belonging to the lighting system, can also be coupled to the supply line 3, 4 so that the energy meter 2 also records their energy consumption, as shown in FIG.
    FIG. 5 is an illustration of a system 1 which comprises a lighting system 10 and an energy meter 2. Elements which can have a configuration described with reference to FIGS. 1 to 4 are denoted by the same reference symbols as in FIGS. 1 to 4.
    In the system 1, the supply lines 3, 4 are further consumers 31, 32
    connected that cannot be controlled via the control channel 15. The energy meter 2 detects the total energy consumption of the consumers 11-13 of the lighting system, which can be controlled via the control channel 15, and the consumers 31, 32, which cannot be controlled via the control channel 15. For example, the energy meter can be a central energy meter of a building or part of a building, which does not have to be provided specifically for the lighting system 10.
    The device 40 can be set up as described with reference to Figure 1 to Figure 4 to automatically learn performance profiles of the consumers 11-13 of the lighting system, which can be controlled via the control channel 15. This calibration can take place in a state in which the further consumers 31, 32, which cannot be controlled via the control channel 15, have a constant power consumption, or in a state in which the power consumption of the further consumers 31, 32 is otherwise known. For example, the configuration can be carried out as described with reference to FIG. 1 to FIG. 4 if the further loads 31, 32, which cannot be controlled via the control channel 15, have a constant power consumption. Changes in the total power consumption, which are reflected in the total energy consumption recorded by the energy meter 2, are then not influenced by the further consumers 31, 32 and can be assigned to the changes in the manipulated variable of one of the consumers 11-13. In the case of a non-constant but previously known power consumption of the further consumers 31, 32, this can be taken into account mathematically in order to determine the power profile of each of the consumers 11-13. In the case of non-constant and not previously known power consumption of the further loads 31, 32, various mathematical techniques can be used with which the device 40 can determine the performance profile of each of the loads 11-13 as a function of the control values and the query of the energy meter 2. For example, a consumer 11 can be set several times to a certain control value, and the power consumption for this control value determined by querying the energy meter 2 can be averaged or filtered in some other way in order to eliminate the unknown influence of the other consumers 31, 32. The filtering can include a suppression or omission of measured values which, as outliers, have a substantial deviation from the mean value and are therefore likely to be assigned to a change in one of the further loads 31, 32. Other filtering methods known per se can be used by the device 40 to eliminate the unknown influences of the further consumers 31, 32.
    The control channel 15 can comprise a bus, but can also have a different configuration. For example, the control channel 15 can be implemented by a wireless interface between the control device 14 and the operating devices 21-23.
    FIG. 6 is an illustration of a system 1 which comprises a lighting system 10 and an energy meter 2. Elements which can have a configuration described with reference to FIGS. 1 to 5 are denoted by the same reference symbols as in FIGS. 1 to 5.
    In the system 1, a control channel 16 between the control device 14 and the lights 11-13 or other consumers of the lighting system can be implemented as a wireless interface. The control channel interface 43 of the device 41 is set up to listen in to control signals for the loads 11-13 transmitted via the control channel 16 in order to detect the control values of the loads 11-13 as a function of time. The control values, for example dimming values or color values, can be used both during calibration and when determining the energy consumption depending on the control values and the performance profile.
    In order to enable the device 40 to eavesdrop on the control signals directed to the loads 11-13, the control channel interface 43 can be designed as a unidirectional interface that receives control signals transmitted on the control channel 16. In this way, unidirectional communication 18 from control channel 16 to device 40 can be implemented. The control channel interface 43 can also be configured as a bidirectional interface, for example to enable the device 40 to signal the control device 14.
    indicate that the calibration should be carried out. In response to a corresponding request from device 40, control device 14 can begin to set consumers 11-13 one after the other to several different control values, for example different dimming values and / or color values, in order to enable device 40 to determine the performance profile. The device 40 can query the respective energy consumption from the energy meter 2 via an optical interface 17 or radio link in order to determine the performance profiles of the consumers.
    In order to output determined energy consumption, the device 40 can communicate with a readout device 60 via a readout interface 61, which can be a wireless interface. Instead of a wireless interface 61, which can be an optical interface or radio interface, a wired interface can also be used.
    The device 40 can also be configured to be configured via the wireless interface 61 or via the interface 43 for communication with the control channel 16, for example by defining groups of consumers whose accumulated energy consumption is then determined by the device 40.
    FIG. 7 is an illustration of a system 1 which comprises a lighting system 10 and an energy meter 2. Elements which can have a configuration described with reference to FIGS. 1 to 5 are denoted by the same reference symbols as in FIGS. 1 to 5.
    In system 1, device 40 can be set up for bidirectional communication 19 via control channel interface 43. The bidirectional communication allows the device 40 to actively query the control values of the consumers 11-13. This can be provided in addition or as an alternative to listening in to the control signals for the loads 11-13. For example, an active query can always take place if no current control value could yet be determined from a control signal and / or if the same current control value has been retained for a predefined period of time so that the device 40 can carry out a check through the active query.
    FIG. 8 is a flow chart of a method 70 according to an exemplary embodiment. The method 70 can be carried out automatically by the device 40 in order to determine the performance profiles of the consumers 11-13 in a calibration from the control values of the consumers 11-13 in combination with meter readings of the energy meter 2.
    In step 71, control values of consumers 11-13 can be monitored, which can be controlled via a control channel 16. The consumers 11-13 can comprise a plurality of lights. The monitoring of the control values can include receiving and processing the control signals generated by the control device 14 for the loads 11-13.
    In step 72 it can be checked whether a learning phase is to be initiated in which the performance profiles of the consumers 11-13 are to be learned and / or updated. The learning phase is used for calibration, in which different control values for each of the loads are assigned to a power consumption. If the learning phase is not to be initiated, the method can return to step 71.
    In step 73, a total power consumption, which takes place via the supply lines 3, 4, with which the consumers 11-13 are also supplied, can be determined for calibration. For this purpose, at least two counter readings of the energy meter 2 can be queried sequentially in order to determine the total power consumption.
    In step 74 it can be checked whether there is a change in the manipulated variable for one of the consumers. For this purpose, control signals generated by the control device 14 for the consumers 11-13 on the control channel 16 can be monitored and evaluated. If there is no change in the manipulated variable, the method can return to step 73. Any changes in the total power consumption that are detected without changes in the control value of the consumers can be assigned to the further consumers 31, 32 that are not coupled to the control channel 16.
    The manipulated variable change can take place, for example, in a specific calibration phase, in which the control device 14 first controls one of the consumers 11 so that it is set sequentially to several manipulated values, and in which the control device 14 then controls one or more of the consumers so that they are set to several control values in sequence. In this way, the control device 14 can allow each of several consumers to approach several support points, for example several dimming values and / or color values, which are used for calibration.
    In step 75, if the control value of a consumer has changed, the total power consumption that takes place via the supply lines 3, 4, with which the consumers 11-13 are also supplied, can be determined. For this purpose, at least meter readings of the energy meter 2 can be queried sequentially in order to determine the total power consumption.
    In step 76, the power consumption of the consumer whose control value has changed can be determined from the total power consumption determined in steps 73 and 75. For example, a change in the total power consumption that results from the manipulated variable of a consumer 11 from a dimming value from zero to a dimming value greater than zero can define the power consumption of this consumer 11 for the corresponding manipulated variable.
    In step 77 it can be checked whether the learning phase should be ended. If the learning phase is continued, the method can return to step 73. One or more consumers 11-13 can be controlled in order to sequentially move to different manipulated variable support points, the change in total power consumption resulting from the manipulated variable change being determined as it results from the counts of the energy meter 2.
    At step 78, the performance profiles can be saved when the learning phase is complete. If not every possible control value has been approached, an interpolation and / or extrapolation of the power consumptions previously determined based on measurements of the energy meter 2 can be carried out as a function of the control value.
    The power profiles for the multiple consumers can be stored locally in the device 40 and used for the subsequent determination of the energy consumption of the multiple consumers 11-13.
    Figure 9 is a flowchart of a method 80. The method 80 can be carried out by the device 40 according to an exemplary embodiment in order to use monitored control values of the consumers 11-13 in combination with the performance profiles, the energy consumption individually for each consumer and / or for a group of To identify consumers.
    In step 81 control signals for the consumers 11-13 can be monitored, with which the control device 14 controls the consumers 11-13. Monitoring the control signals may include receiving and processing the control signals transmitted on a bus 15 or other control channel 16.
    The control signals can be processed in order to determine the time-dependent change in control values of the different loads 11-13.
    In step 82, depending on the control values, for example dimming values and / or color values of lights, in combination with the performance profiles, the current power consumption of all consumers 11-13 can be determined. These can be used to increment the energy consumption of each of the loads 11-13, taking into account, in a manner known per se, the time period in which the current power consumption is kept constant before the control value is changed again.
    The energy meter 2 can also be queried during the determination of the energy consumption of the consumers 11-13, for example in order to update the performance profiles, to further improve them and / or to determine the energy consumption of the consumers determined by the device 40.
    cher 11-13 to subject a consistency check.
    Figure 10 is a flowchart of a method 85. The method 85 can be executed by the device 40 according to an embodiment to use monitored control values of the consumers 11-13 in combination with the power profiles, the energy consumption consumer-individually and / or for a group of consumers to determine and to update the performance profiles.
    Steps 81 and 82 can be carried out as described with reference to FIG.
    While the power profiles of the consumers 11-13 are used to determine the energy consumption, the total power consumption, which takes place via the supply lines 3, 4, with which the consumers 11-13 are also supplied, can be determined in step 86. For this purpose, at least meter readings of the energy meter 2 can be queried sequentially in order to determine the total power consumption. The total power consumption can be determined repeatedly for different control values of at least one of the loads 11-13.
    In step 87, the performance profile, which relates the control values of a consumer to its power consumption, can be updated. For this purpose, for example, a performance profile originally learned in the calibration phase can be updated. For example, for a control value for which the associated power consumption was originally determined by interpolation or extrapolation, the originally calculated power consumption can be replaced by an improved power consumption that is determined by querying the energy meter during operation.
    With devices, systems and methods according to exemplary embodiments, the energy consumption of each of the can be controlled with only one device 40 for determining the energy consumption, which is coupled to a control channel 15, 16 via which several consumers 11-13 of a lighting system 10 can be controlled several consumers can be determined.
    While embodiments have been described with reference to the figures, modifications can be implemented in other embodiments.
    While in devices, systems and methods, the device 40 can be set up to automatically perform a calibration in which the associated power consumption of a consumer is learned for several control values depending on the counter readings of an energy meter 2, the relationship between control value and power consumption also be stored in the device 40 in another way. For example, the device 40 can download calibration data that describe the relationship between the control value and the power consumption for each of the plurality of consumers 11-13 from a memory of the corresponding consumer 11-13. Alternatively or additionally, calibration data that describe the relationship between the control value and power consumption can be stored in the device 40 in a user-defined manner for each of the multiple loads 11-13 during the configuration or commissioning of the lighting system 1.
    While in devices, systems and methods, the device 40 can be a device that carries out both the calibration and the determination of the energy consumption in use, two separate devices can be used for the different functions. For example, the calibration can initially be carried out with a first device, in which the relationships between control values and power consumption of the loads are learned automatically. The performance profiles determined in this way are transmitted to a second device, which then takes over the determination of the energy consumption of several consumers when the lighting system 10 is in use. The first device can be a device used for the configuration and / or commissioning of the lighting system 10, which does not have to remain permanently installed.
    While in devices, systems and methods the consumers 11-13 all light
    can be, at least one of the consumers can also be different from a lamp and an operating device. For example, the disclosed techniques can also be used for different states of a sensor, a control device 14 or another device in order to determine the associated energy consumption. Different control values can correspond, for example, to different operating states such as standby and normal operation.
    Devices, systems and methods according to embodiments allow the detection of energy consumption of individual lights or other consumption of a lighting system depending on the control values of the lights or other consumers.
    权利要求:
    Claims (10)
    [1]
    1. A device for determining an energy consumption for consumers (11-13) of a lighting system (10) having a plurality of consumers (11-13), the device (40) comprising: a processing device (42) which is set up to be dependent on at least a control value of a consumer (11-13) of the lighting system (10) to determine an energy consumption of the consumer (11-13).
    [2]
    2. The device according to claim 1, wherein the device (40) is set up for a calibration in which a respectively assigned power consumption of the consumer (11-13) is determined automatically for several control values of the consumer (11-13).
    [3]
    3. Device according to claim 2, comprising an energy meter interface (41) for communication with an energy consumption or power recording device (2).
    [4]
    4. The device according to claim 3, wherein the device (40) is set up to carry out the calibration as a function of the energy meter signals received at the energy meter interface (41).
    [5]
    5. The device according to claim 4, wherein the energy meter signals include information about a total energy consumption or a total power consumption of a system (11-13, 31, 32) which has the plurality of consumers (11-13) of the lighting system (10).
    [6]
    6. The device according to claim 5, wherein the device (40) is set up to carry out the calibration, while consumers (31, 32) not belonging to the lighting system (10), whose energy consumption is also detected by the energy consumption or power recording device (2) will have a predefined power consumption, in particular a constant power consumption.
    [7]
    7. Device according to one of claims 3 to 6, wherein the device (40) is set up to perform the calibration based on a change in energy consumption detected by the energy consumption or power detection device (2), which changes in response to a change in the control value for the consumer (11- 13) occurs.
    [8]
    8. A lighting system comprising: a plurality of consumers (11-13) and a device (40) for determining an energy consumption according to one of claims 1 to 7.
    [9]
    9. System comprising a lighting system (10) according to claim 8, and an energy or power detection device (2) for detecting a total energy consumption or total power consumption of consumers (11-13, 31, 32) of the system.
    [10]
    10. A method for determining an energy consumption for consumers (11-13) of a lighting system (10) having a plurality of consumers (11-13), the method comprising:
    Determining an energy consumption of a consumer (11-13) of the lighting system (10) as a function of at least one control value of the consumer (11-13).
    In addition 5 sheets of drawings
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    同族专利:
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    DE102015218242A1|2017-05-04|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
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