DE102015218242A1 - Apparatus and method for determining power consumption for consumers of a lighting system - Google Patents

Abstract

A device (40) is arranged to determine an 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 load (11-13) of the lighting system (10).

Description

TECHNICAL AREA

Embodiments of the invention relate to apparatus and methods for determining the power 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 consumers of a lighting system, which 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 capabilities of such devices. To increase the user comfort, for example, in a lighting system comprising a plurality of luminaires, the luminaires can be controlled via a control channel, for example a DALI (Digital Addressable Lighting Interface) bus. This allows the definition of different light scenes or the individual or group control of lights.

Determining the energy consumption of individual consumers or groups of consumers may be desirable for a variety of reasons. For example, information about the energy consumption of individual luminaires or groups of luminaires may be needed for consumption optimization, billing or for other reasons.

To record the energy consumption of individual luminaires, the operating device of each luminaire can be equipped with an energy meter designed specifically for the luminaire. This increases the cost of the lighting system. In addition, retrofitting with such operating devices would bring a relatively large installation effort with it, must be replaced in the operating equipment or lights without energy meter by those with an energy meter.

SUMMARY

There is a need for devices, systems and methods that provide improvements to the disadvantages described above. In particular, there is a need for such devices, systems and methods in which the energy consumption of a plurality of consumers of a lighting system can be detected consumer-individually, without having to provide each operating device with a separate energy meter.

According to embodiments, an apparatus for detecting the energy consumption is provided, which is configured to determine its energy consumption as a function of position values of a consumer of a lighting system.

The device can be coupled to a control channel, for example a DALI (Digital Addressable Lighting Interface) bus, to listen to control commands directed to the consumer and to determine therefrom the current control value of the corresponding consumer. The device can be set up in order to determine the energy consumption from the positions, a power consumption of the corresponding consumer assigned to the different control values, and a time in which the consumer has the corresponding control value.

The control values can be, for example, dimming values and / or color values of a luminaire.

The device may interface with a power meter or other power or power sensing device. The device can be set up for an automatic calibration, in which it learns for each of the several consumers the different control values respectively associated power consumption of the corresponding consumer. For this purpose, the device can communicate wirelessly or by wire with an energy meter, at least in a calibration phase, in order to learn which power consumption is respectively associated with the different control values of the corresponding consumer.

For calibration, a consumer can be specifically controlled so that it assumes sequentially different dimming values, different color values and / or different combinations of dimming values and color values. The device may each interrogate the energy meter several times 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 compared to a state in which the consumer has no energy input.

The calibration can also be done during operation. By interrogating the energy meter, the device can determine the total power consumption for each of the states of the plurality of consumers, for example the plurality of luminaires, and computationally determine the power consumption assigned to the different control values of a consumer.

An apparatus for determining a power consumption for a lighting system is given according to an embodiment. The lighting system has multiple consumers, which may 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 load of the lighting system.

The device can be set up for a calibration, in which a respective assigned power consumption of the consumer is automatically determined for several control values of the consumer.

The device may include an energy meter interface for communicating with a power or power sensing device.

The energy meter interface may be a wireless interface.

The power meter interface may be configured to communicate with the power or power sensing device in accordance with an IP-based protocol. The IP-based protocol may be Zigbee, Wired Ethernet or another protocol.

The apparatus may be configured to perform the calibration in response to energy meter signals received at the power meter interface.

The device can be set up to determine how long an integration takes place during the calibration, depending on the energy meter signals received at the energy meter interface. With lower power consumption, the device can be set up to automatically set the integration time to a longer value than with a larger power consumption. As a result, a reliable calibration can be achieved even if the control values correspond to a low dimming level.

The energy meter signals may include information about a total energy consumption or a total power consumption of a system having the plurality of consumers of the lighting system.

The power or power sensing device may, but need not be, configured to detect only the total energy consumption of the multiple consumers of the lighting system.

The device may be configured to carry out the calibration, while consumers that are not part of the illumination system and whose energy intake is detected by the energy consumption or power acquisition 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 detected by the energy consumption or power detection device have a constant power consumption. As a result, the calibration is particularly simplified because changes in the energy consumption or power detection device detected energy consumption can be clearly assigned to a control value change of the consumers of the lighting system.

The apparatus may be configured to perform the calibration based on an energy change detected by the energy consumption or power detection device occurring in response to a manipulated variable change for the consumer.

The device can be set up to automatically determine, during the calibration for each of the plurality of consumers of the lighting system, which can be controlled via a control channel, a power consumption of the load assigned to each setpoint value of the consumer. For example, for each luminaire of the lighting system that can be controlled via a DALI bus or another control channel, the power consumption of the luminaire for different dimming values, different color values and / or different combinations of dimming value and color value can be determined by querying the energy consumption or power acquisition device having.

The device can be set up to determine setting values of the multiple consumers during the calibration by evaluating control signals for the multiple consumers. The control signals may be overheard by the device while being transferred to a DALI bus or other control channel.

The apparatus may include a storage medium for non-transiently storing a result of the calibration.

The device may be configured to control the energy consumption of the consumer depending on a result of the calibration and time-sequentially adjusted control values of the consumer as well the duration for which a manipulated variable is set in each case.

The device can be set up to query tariff information from the energy consumption or power acquisition device via the energy meter interface. The tariff information may, for example, include information about a respective 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 respectively set and the tariff information.

The device may include a control channel interface. The device may be configured to determine the at least one manipulated variable of the consumer from signals detected at the control channel interface.

The control channel interface may be configured to detect control signals directed to each of the plurality of consumers.

The control channel interface may be configured to monitor the control signals transmitted on a control channel from a controller to the consumer. The control channel interface may be configured to listen to DALI control signals on a DALI bus.

The control channel interface may be configured to allow bi-directional communication of the device with the lights to interrogate control values.

The apparatus may be configured to determine the power consumption of the plurality of consumers individually for each of the plurality of consumers and / or for each of a plurality of groups of consumers of the lighting system.

The device may be configured to non-volatile store the determined energy consumption for each of the plurality of consumers. The device may initiate storage locally in a memory of the device or remotely from the device, for example over a wide area network.

The apparatus may include an output interface for outputting the energy consumption determined for each of the plurality of consumers individually and / or for each of a plurality of groups of consumers of the lighting system. The output interface may be configured for wireless or wireline transmission of the energy consumption determined for each of the plurality of consumers.

The output interface may be configured to output the consumption in accordance with an IP-based protocol. The IP-based protocol may be Zigbee, Wired Ethernet or another protocol.

An illumination system according to an embodiment comprises a plurality of consumers and an apparatus for determining an energy consumption according to an embodiment.

The lighting system may include a controller configured 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 in dependence on the control signals for the plurality of consumers.

The lighting system may include a control channel to which the controller, the plurality of consumers, and the power consumption determining device are coupled.

The control channel can be a DALI bus.

The plurality of consumers may include a plurality of lights.

At least one of the consumers whose energy consumption is being determined may be one of a light and an operating device of different consumers. This consumer or these consumers that are not lights, for example, sensors or a control device.

A system according to an embodiment includes an illumination system having means for determining the power consumption according to an embodiment, and an energy or power detection means for detecting a total power consumption or total power consumption of consumers of the system.

The energy or power detection device may be an energy meter that detects energy consumption that is either assigned only to the lighting system or that may also include other consumers that can not be controlled in the lighting system. For example, the energy meter can be a central energy meter which records a total consumption of all consumers in a building part or an entire building. Through the logical correlation of control values of the multiple consumers of the lighting system and Changes in power consumption, as reflected in the counts of the energy meter, it can be determined which power consumption is assigned to the different consumers of the lighting system. This information can be used by the device to determine the energy consumption at the level of a single consumer.

The energy meter can be connected in series with the supply. The energy meter can be coupled via a transformer with supply lines.

A method for determining a power consumption for consumers of a multi-consumer lighting system is given according to a further embodiment. The method comprises determining a power consumption of a consumer of the lighting system as a function of at least one control value of the load.

In the method, an automatic calibration can be carried out, in which for a plurality of control values of the consumer, an respectively assigned power consumption of the consumer is automatically determined.

The automatic calibration may include processing control signals for the plurality of consumers and energy meter signals. The energy meter signals may include information about a total energy consumption or a total power consumption of a system having the plurality of consumers of the lighting system.

The automatic calibration can automatically determine how long an integration of the power consumption takes place during calibration. With lower power consumption, the integration time can be set automatically to a longer value than with a larger power consumption. As a result, a reliable calibration can be achieved even 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 may be performed by the device, the illumination system, or the system according to one embodiment.

According to exemplary embodiments of the invention, with only one device for determining the energy consumption, which is coupled to a control channel, via which a plurality of consumers of a lighting system can be controlled, the energy consumption of each of the plurality of consumers can be determined. A replacement of all operating devices by operating devices, which are provided with an energy meter, can be omitted.

In embodiments, it can be learned automatically which power consumption is associated with the different control values, for example dimming values, color values or combination of dimming and color value, of a lamp. For this purpose, the device for determining the energy consumption, at least in the calibration phase, can query an energy counter in order to determine how different control values affect the power consumption of a consumer.

BRIEF DESCRIPTION OF THE FIGURES

The invention will be explained in more detail with reference to the accompanying drawings with reference to preferred embodiments.

1 shows an illumination system with a device for determining an energy consumption according to an embodiment.

2 FIG. 10 is a block diagram of an apparatus for determining power consumption according to an embodiment. FIG.

3 FIG. 10 is a block diagram of an apparatus for determining power consumption according to an embodiment. FIG.

4 is a flowchart of a method according to an embodiment.

5 shows an illumination system with a device for determining an energy consumption according to an embodiment.

6 shows an illumination system with a device for determining an energy consumption according to an embodiment.

7 shows an illumination system with a device for determining an energy consumption according to an embodiment.

8th is a flowchart of a method according to an embodiment.

9 is a flowchart of a method according to an embodiment.

10 is a flowchart of a method according to an embodiment.

DETAILED DESCRIPTION OF EMBODIMENTS

The invention will be described in more detail below on the basis of exemplary embodiments with reference to the figures, in which identical reference symbols represent identical or corresponding elements. The features of various embodiments may be combined with each other unless expressly excluded in the description. Although some embodiments are further described in the context of specific applications, such as in the context of interior lighting using LED based bulbs, the embodiments are not limited to these applications.

1 is a representation of a system 1 that is a lighting system 10 and an energy meter 2 includes. As will be described in more detail, the lighting system 10 a device 40 for determining the energy consumption of individual consumers 11 - 13 of the lighting system 10 on. The device 40 can with a control channel 15 be coupled to current control values of consumers 11 - 13 and dependent on the current control values, the duration in which these control values are active, and data showing the relationship between control value and power consumption of the respective consumer 11 - 13 Determine the energy consumption individually for each of the consumers 11 - 13 to investigate.

The device 40 can be via a wireless or wired interface with the energy meter 2 be connected. The device 40 can be set up, at least in a calibration phase depending on the respectively valid control values of the consumer 11 - 13 and depending on the resulting, from the energy meter 2 recorded change in total power consumption to determine what power consumption the individual consumers 11 - 13 for different control values.

The energy meter 2 can be connected in series with the supply. The energy meter 2 can be via a coupler or other transformer with supply lines 3 . 4 be connected.

At least two of the consumers 11 - 13 can have mutually different configurations. For example, at least two of the consumers 11 - 13 different operating devices and / or bulbs include. While several of the consumers 11 - 13 each may be a lamp, and at least one of the consumers whose power consumption is determined, may be different from a lamp and a control gear. For example, at least one of the consumers whose power consumption is determined may be a controller, a sensor, an input interface or another input element.

The lighting system 10 includes a plurality of lights 11 - 13 , Each of the lights 11 - 13 includes a control gear 21 - 23 , the output side each with an associated light source 24 - 26 are connected. The operating devices and lamps do not necessarily have to be combined in luminaires. The bulbs 24 - 26 For example, each may be configured as an LED module or may include one or more light emitting diodes. The bulbs 24 - 26 can each comprise one light emitting diode (LED) or multiple LEDs. The LED or LEDs may include inorganic light emitting diodes, organic light emitting diodes, or a combination of inorganic light emitting diodes and organic light emitting diodes. The bulbs 24 - 26 For example, on a ceiling 2 or a wall of a building.

The operating devices 21 - 23 can each be set up to supply the light source. The operating devices 21 - 23 can each be designed as an LED converter. The operating devices 21 - 23 may each include a DC / DC converter. One input of each operating device 21 - 23 can for a connection with supply lines 3 . 4 be furnished.

The lighting system 10 can have a control channel 15 for transmitting control signals. The control channel 15 Optionally, it can also be used to transmit sensor signals or other status information. The control channel 15 can include a bus. Instead of a bus system, the different consumers 11 - 13 of the lighting system 10 otherwise in communication with a controller 14 stand.

The control channel 15 can be configured as a DALI bus. The lights 11 - 13 , the control unit 14 and the device 40 for determining the energy consumption and optionally other facilities of the lighting system 10 can each with the control channel 15 be coupled.

The device 40 for determining the energy consumption may be arranged to listen to control signals that the control unit 14 over the control channel 15 to the operating devices 21 - 23 the consumer 11 - 13 sends. The device 40 For determining the energy consumption, the respective control values of the consumers can be determined from the control signals 11 - 13 determine. The device 40 can depend on the current control values, the duration in which these control values are active, and data containing the Relationship between control value and power consumption of the respective consumer 11 - 13 Determine the energy consumption individually for each of the consumers 11 - 13 determine.

The control unit 14 can be set up to dimming, color values, combinations of dimming and color values or other control values to consumers 11 - 13 over the control channel 15 to convey. The control unit 14 can be set up to consumers 11 - 13 individually and / or group-wise. For example, an activation can take place in DALI groups.

The device 40 for determining the energy consumption can be configured so that the control channel interface control signals for the consumer 11 - 13 recorded and analyzed. Using a stored power profile, which assigns the control value of a power consumption, the device 40 To determine the energy consumption, determine the instantaneous power. The device 40 for determining the energy consumption may alternatively or additionally the current control value of each of the consumers 11 - 13 also actively query.

The power profile, which indicates an assignment of dimming value or other control values for power consumption, can be determined via a calibration process. In this case, the control value of the lamp and the total energy consumption by the energy meter 2 is determined to be logically linked together.

The calibration may be transparent, for example, so that changes of the dimming values and / or color values that are recognizable to the user are made specifically for calibration, or are visible in times when the calibration does not disturb users, for example at night. During calibration, the current total energy consumption or the current total power consumption of the energy meter 2 provided. The energy meter 2 For example, it may include an optical interface or other wireless interface to provide in the form of digitally coded values the current total energy consumption or current total power consumption to the device 40 to determine the energy consumption. As the total value is displayed and thus unknown consumers, for example, not to the lighting system 10 When included, the calibration may be performed so that these unknown consumers have a constant power consumption while the calibration is in progress. Multiple measurements over time can improve calibration. For example, changes that are not caused by manipulated value changes of a consumer 11 - 13 of the lighting system are detected and disregarded in the determination of the assignment of control values for power consumption. Alternatively or additionally, an averaging or other filtering can take place in which the change in the total power consumption, which is caused by a specific control value change of a consumer, several times by polling the energy meter 2 determined and then averaged, filtered or otherwise processed further.

The power profile, which assigns a power consumption to each of the control values of a consumer, can also be determined completely transparently from many measurements and the resulting equation systems. This can be done, for example, in normal use. In this case, the calibration is advantageously carried out in such a way that it does not have the control channel 15 controlled consumers a constant or a known power consumption, which can also be temporally variable cause.

The device 40 for determining the energy consumption can be set up to automatically determine which integration time integration of the power consumption during the calibration takes place. At lower power consumption, the device can 40 to determine the energy consumption to automatically set the integration time to a longer value than with a larger power consumption. As a result, a reliable calibration can be achieved even if the control values correspond to a low dimming level. The power consumption can be from that of the energy meter 2 provided signals are determined. The calibration can be done by the device 40 To determine the energy consumption automatically be carried out so that more time is used to determine the power profile for control values that correspond to a small power consumption than at control values that correspond to a higher power consumption.

The device 40 for determining the energy consumption determined using the in Nutzbetrieb the lighting system 10 set values and the information that each power value assign an associated power consumption, the energy consumption per consumer. The device 40 To determine the energy consumption can be a logical assignment of consumers 11 - 13 to groups. The groups may be determinable via a user interface, for example for billing. The group assignment can also be made via the control channel 15 detected control signals are detected.

The energy consumption, consumer-specific and / or for groups of consumers 11 - 13 can be provided via an output interface to a reader or other data processing unit.

The design and operation of the device 40 for determining the power consumption will be described below with reference to 2 to 10 described in more detail. In each of the described embodiments, the device 40 be designed to determine the energy consumption as a device having a housing and with the control channel 15 communicatively coupled. The device 40 for determining the energy consumption can also be in the control unit 14 or one of the consumers 11 - 13 be structurally integrated. An embodiment in which the device 40 designed to determine the energy consumption 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 be performed by a device that only needs to be present during calibration. The result of the calibration can be transmitted to a second device, which is the assignment of control values to power consumption for the consumers 11 - 13 used to for each of the several consumers 11 - 13 in each case to detect the current control value 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 To determine the energy consumption can be set up to the individual consumers 11 - 13 of the lighting system 10 allocated energy consumption by processing the control values of the consumers 11 - 13 to investigate. A measurement of the energy flow in the supply line 3 . 4 or from the supply lines 3 . 4 does not have to be done. The device 40 To determine the energy consumption can be set up so that they are not connected to the supply line 3 . 4 is coupled or no unit for measuring the over the supply line 3 . 4 has flowing energy.

The device 40 for determining a power consumption does not have to for each possible control value of each of the multiple consumers 11 - 13 the associated power consumption by using data from the energy meter 2 determine. For example, the device 40 the power as a function of the dimming value and / or color value for some nodes depending on the data of the energy meter 2 in calibration and then use interpolation and / or extrapolation outside the interpolation points. Alternatively or additionally, the performance profile for each of the consumers 11 - 13 from the operating devices 21 - 23 or in the configuration of the lighting system in the device 40 be programmed to determine an energy consumption.

The device 40 for determining an energy consumption may be arranged to take into account tariff information in the consumption determination. The tariff information may, for example, include information about a respective applicable tariff, for example day or night tariff. The device 40 can the tariff information from the energy meter 2 Interrogate. For example, the device 40 from the energy meter 2 ask which tariff is valid. The consumption information may be from the device 40 to determine energy consumption not only in energy units, but also in consumption costs.

The device 40 for determining an energy consumption may be arranged to determine the energy consumption of a consumer or a group of consumers depending on a result of calibration, time-sequentially set control values of the consumer, the duration for which a control value is set and the tariff information.

2 is a block diagram of a device 40 for determining an energy consumption of consumers 11 - 13 a lighting system 10 according to an embodiment. The device 40 To determine an energy consumption can be generally set to control values of consumers 11 - 13 to use, in order to determine the energy consumption from the control values and information about the respective power consumption assigned to the control values. The device 40 for determining an energy consumption may alternatively or additionally be set up for multiple control values of a consumer with queries of the energy meter 2 each to determine the power consumption of the consumer.

The device 40 comprises a processing device 42 , The processing device 42 is set to depend on control values of a consumer 11 - 13 the energy consumption of the consumer 11 - 13 to investigate. The processing device 42 For example, the time in which a manipulated variable is valid may be multiplied by a power consumption associated with the manipulated variable for that consumer to determine which increment of the energy consumed by that consumer must be increased. The energy consumption can be non-volatile in a memory 46 be saved. Of the Energy consumption can be updated by monitoring the manipulated variable changes and using the power profile of the corresponding consumer.

The processing device 42 may comprise one or more semiconductor integrated circuits. The processing device 42 may include one or more of a processor, a microprocessor, a controller, a microcontroller, a custom special purpose circuit, or a combination of said or other semiconductor integrated circuits.

The device 40 can be a time or clock 45 comprising, with the processing device 42 coupled or integrated into this can be. The processing device may be dependent on the time signal of the timer or clock 45 Determine how long a manipulated variable was valid for each consumer.

The device 40 can be configurable to determine the energy consumption not only for a single consumer, but alternatively or additionally for a group of consumers. In this way, for example, for billing purposes, multiple consumers can be aggregated to determine their cumulative energy use. About one (in 2 not shown) user interface or the control channel 15 Information can be transmitted that indicates which consumers each belong to a group. The groups for which the energy consumption is determined in each case can be identical to DALI groups, but can also be independent of the DALI groups of the lighting system 10 be defined.

The device 40 can a memory 44 for storing performance profiles of consumers 11 - 13 include. The performance profiles can be obtained from the device 40 be determined automatically in a calibration. The power profile of a consumer indicates for several control values, for example a plurality of dimming values and / or color values, in each case which power consumption the consumer has during operation with this control value. To determine the power profiles, the device 40 in each case the current meter reading of an energy meter 2 time-sequentially query several times to determine the power consumption, which is for a control value of a consumer 11 - 13 for example, compared to a state in which no light emission occurs.

The device 40 can be an energy meter interface 41 for communication with the energy meter 2 include. The energy meter interface 41 may be an optical interface or other wireless interface, such as a radio interface. The device 40 may be set up to determine the power profiles in the calibration via the energy meter interface 41 Inquiries to the energy meter 2 to send and / or to via the energy meter interface 41 To get information about a current counter reading of the energy meter.

The energy meter interface 41 may be set up to be in accordance with an IP-based protocol with the energy meter 2 to communicate. The IP-based protocol may be Zigbee, Wired Ethernet or another protocol.

The device 40 can have a control channel interface 43 include. The device 40 can be set to off at the control channel interface 43 received signals to determine which control value is currently set for a consumer and / or which new control value to accept a consumer.

The control channel interface 43 can be set up to over the control channel 15 transmitted control signals for the consumers 11 - 13 overhear. The processing device 42 can determine a new control value from the control signals for the respective consumer. The control channel interface 43 In this case, it can be configured as a unidirectional interface.

The device 40 may alternatively or additionally be set up via the control channel interface 43 active the current control value of one or more consumers 11 - 13 query. The control channel interface 43 is designed in this case as a bidirectional interface.

The time-varying control values, which are via the control channel interface 43 for the consumers 11 - 13 are determined by the processing device 42 used to determine how the temporally integrated energy consumption of the respective consumer increases. The one in the store 46 stored energy consumption can be updated. The time-varying control values, which are via the control channel interface 43 for the consumers 11 - 13 can be determined by the processing device 42 alternatively or additionally also be used during the calibration, in which the performance profiles 44 be generated.

The device 40 may be configured as a device having a housing and for coupling to the control channel 15 of the lighting system is designed.

The device 40 from 2 can be set up to read out the Energy consumes the energy consumptions of multiple consumers and / or the energy consumptions of one or more groups via the control channel interface 43 to one with the control channel 15 coupled read-out device and / or via the also used for communication with the energy meter wireless interface 41 issue.

3 is a block diagram of a device 40 for determining an energy consumption of consumers 11 - 13 a lighting system 10 according to an embodiment. Elements referring to 2 described embodiment are designated by the same reference numerals as in 2 ,

The device 40 can be an output interface 47 in order to output the energy consumption of the plurality of consumers and / or the energy consumption when reading the energy consumption. The output interface 47 may be a wireless interface for communication with a reader. The output interface 47 Optionally, it may include an optical or acoustic output unit for optically or acoustically outputting the energy consumptions.

4 is a flowchart of a method 50 according to an embodiment. The procedure 50 can from the device 40 to automatically detect energy consumption.

At step 51 determines the device 40 Performance profiles of several consumers. Determining the power profiles of the multiple consumers may be a query of an energy meter 2 include. In order to determine the power profiles, for each consumer at least two control values of the consumer can be determined in each case by two queries of the energy counter 2 be determined, which power consumption of the consumer has the corresponding control value. In this case, the control values of all other consumers can be kept constant in order to enable the determination of the power profile in a simple manner. Alternatively or additionally, to determine the power profile of several consumers, the control values of several consumers can also be changed simultaneously in order to scan a multi-dimensional data space which is spanned by the control values of the several consumers.

Determining the power profile in the calibration at step 51 does not require that for each possible set value each of the multiple consumers 11 - 13 the associated power consumption by using data from the energy meter 2 is determined. For example, during calibration, the power as a function of the dimming value and / or color value for some nodes depending on the data of the energy meter 2 be determined. Subsequently, an interpolation and / or extrapolation outside the interpolation points can be used. Alternatively or additionally, the performance profile for each of the consumers 11 - 13 from the operating devices 21 - 23 or in the configuration of the lighting system in the device 40 be programmed to determine an energy consumption.

At step 52 Energy consumption is determined for each of several consumers, for example for each of several lights. This is monitored as a function of time, which control values are set for each of the consumers. In combination with the power profile of the load and the time-dependent change of the control value, it is determined which energy consumption the consumer has in the corresponding time span. The non-volatile stored previous value of the energy consumption can be incremented accordingly. These functions can be performed for each of several consumers.

At step 52 Optionally, the energy consumption of groups of consumers can also be determined. For this purpose, consumer-specific energy consumptions can be added up.

At step 52 Optionally, an improvement of the performance profiles can take place. So even after completion of calibration at step 51 the count of the energy meter 2 queried and logically linked to the respective set values. In this way, changing operating conditions, such as a higher required cooling capacity at higher ambient temperature, taken into account and track the performance profiles accordingly.

The energy meter 2 can be an energy meter that has a total energy consumption only with the control channel 15 controllable consumer 11 - 13 of the lighting system detected. However, there may be other, for example, not belonging to the lighting system consumer with the supply line 3 . 4 be coupled, so that the energy meter 2 also their energy consumption is recorded, as in 5 is shown.

5 is a representation of a system 1 that is a lighting system 10 and an energy meter 2 includes. Elements that one with reference to 1 to 4 described embodiment are designated by the same reference numerals as in 1 to 4 ,

In the system 1 are with the supply lines 3 . 4 more consumers 31 . 32 connected, which does not have the control channel 15 are controllable. The energy meter 2 captures a total energy consumption of consumers 11 - 13 of the lighting system, via the control channel 15 are controllable, as well as the consumer 31 . 32 that does not have the control channel 15 are controllable. For example, the energy meter may be a central energy meter of a building or part of a building that is not specific to the lighting system 10 must be provided.

The device 40 can as with reference to 1 to 4 be set up to consumer performance profiles 11 - 13 of the lighting system, via the control channel 15 are controllable to learn automatically. This calibration can be done in a state in which the other consumers 31 . 32 that does not have the control channel 15 are controllable, have a constant power consumption, or in a state in which the power consumption of other consumers 31 . 32 otherwise known. For example, the configuration as described with reference to 1 to 4 be described when the other consumers 31 . 32 that does not have the control channel 15 are controllable, have a constant power consumption. Changes in the total power consumption, in the from the energy meter 2 recorded total energy consumption are then not reflected by the other consumers 31 . 32 influences and can change the control value of one of the consumers 11 - 13 be assigned. At non-constant, but previously known power consumption of other consumers 31 . 32 This can be mathematically taken into account to the performance profile of each of the consumers 11 - 13 to investigate. With non-constant and not previously known power consumption of other consumers 31 . 32 Various mathematical techniques can be used with which the device 40 the performance profile of each consumer 11 - 13 depending on the control values and the query of the energy meter 2 can determine. For example, a consumer 11 be set several times to a specific control value, and by querying the energy meter 2 In each case determined power consumption for this control value can be averaged or filtered in some other way to the unknown influence of other consumers 31 . 32 to eliminate. The filtering may include suppression or omission of readings which, as outliers, have a significant deviation from the mean, and thus likely a change in one of the other consumers 31 . 32 are assigned. Other known filtering methods can be used to eliminate the unknown influences of other consumers 31 . 32 from the device 40 be used.

The control channel 15 may comprise a bus, but may also have a different configuration. For example, the control channel 15 through a wireless interface between the controller 14 and the operating devices 21 - 23 be implemented.

6 is a representation of a system 1 that is a lighting system 10 and an energy meter 2 includes. Elements that one with reference to 1 to 5 described embodiment are designated by the same reference numerals as in 1 to 5 ,

In the system 1 can be a control channel 16 between the controller 14 and the lights 11 - 13 or other consumers of the lighting system may be implemented as a wireless interface. The control channel interface 43 the device 41 is set up to over the control channel 16 transmitted control signals for the consumers 11 - 13 listen in to the set points of consumers 11 - 13 to record time-dependent. 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 power profile.

To the device 40 a listening to the consumer 11 - 13 directional control signals, the control channel interface 43 be designed as a unidirectional interface on the control channel 16 receives transmitted control signals. In this way can be a unidirectional communication 18 from the control channel 16 to the device 40 be implemented. The control channel interface 43 can also be configured as a bidirectional interface, for example, the device 40 to allow the controller 14 to signal that calibration is to be performed. The control unit 14 may be in response to a request from the device 40 start, the consumers 11 - 13 successively each to several different control values, for example, to provide different dimming values and / or color values to the device 40 to enable the determination of the performance profile. Via an optical interface 17 or radio connection may be the device 40 the respective energy consumption of the energy meter 2 to determine the performance profiles of consumers.

For output of determined energy consumption, the device 40 via a readout interface 61 , which can be a wireless interface, with a reader 60 communicate. Instead of a wireless interface 61 which may be an optical interface or radio interface, a wired interface may also be used.

The device 40 can also be set up via the wireless interface 61 or via the interface 43 for communication with the control channel 16 be configured, for example, by defining groups of consumers whose cumulative energy consumption then from the device 40 is determined.

7 is a representation of a system 1 that is a lighting system 10 and an energy meter 2 includes. Elements that one with reference to 1 to 5 described embodiment are designated by the same reference numerals as in 1 to 5 ,

In the system 1 can the device 40 for bidirectional communication 19 via the control channel interface 43 be furnished. The bidirectional communication allows the device 40 the control values of the consumers 11 - 13 actively query. This may additionally or alternatively to a listening in of the control signals for the consumer 11 - 13 be provided. For example, an active query can always take place if no current control value could still be determined from a control signal and / or if the same current control value was maintained for a predefined period of time, so that the device 40 through the active query can make a check.

8th is a flowchart of a method 70 according to an embodiment. The procedure 70 can from the device 40 be automatically executed to calibrate out the control values of the consumer 11 - 13 in combination with meter readings of the energy meter 2 the performance profiles of consumers 11 - 13 to investigate.

At step 71 can control values of consumers 11 - 13 be monitored, via a control channel 16 are controllable. The consumers 11 - 13 may include a plurality of lights. The monitoring of the control values can be a receiving and processing for the consumer 11 - 13 generated control signals of the controller 14 include.

At step 72 It can be checked whether a learning phase should be initiated in the performance profiles of consumers 11 - 13 learned and / or updated. The learning phase is used for calibration, in which different control values of each of the consumers are each assigned to a power consumption. If the learning phase should not be initiated, the procedure may proceed to step 71 to return.

At step 73 can calibrate a total power input through the supply lines 3 . 4 takes place, with which consumers too 11 - 13 be determined. These can be time-sequentially at least two meter readings of the energy meter 2 be queried to determine the total power consumption.

At step 74 It can be checked whether a manipulated value change for one of the consumers takes place. This can be done for consumers 11 - 13 generated control signals of the control unit 14 on the control channel 16 be listened to and evaluated. If no manipulated value change takes place, the method can go to step 73 to return. Any changes in the total power consumption, which are detected without changes in the control value of the consumer, the other consumers 31 . 32 be assigned, not with the control channel 16 are coupled.

The manipulated variable change can be done, for example, in a specific calibration phase, in which the control unit 14 first one of the consumers 11 controls so that it is set time-sequentially to several control values, and in the control unit 14 Subsequently, one or more of the consumers are controlled in such a way that they are time-sequentially set to a plurality of manipulated variables. The control unit 14 In this way it is possible for each of a plurality of consumers to start several support points, for example a plurality of dimming values and / or color values, which are used for the calibration.

At step 75 If the manipulated variable of a consumer has changed, the total power consumption can be transmitted via the supply lines 3 . 4 takes place, with which consumers too 11 - 13 be determined. These can be time sequentially at least counter readings of the energy meter 2 be queried to determine the total power consumption.

At step 76 The power consumption of the consumer whose control value has changed can be determined by the steps 73 and 75 determined total power consumption can be determined. For example, a change in the total power consumption caused by the change in control value of a consumer 11 resulting from a dimming value of zero to a dimming value greater than zero, the power consumption of this consumer 11 for the corresponding control value.

At step 77 can be checked whether the learning phase should be terminated. If the learning phase continues, the procedure may proceed to step 73 to return. There may be one or more consumers 11 - 13 be driven to approach sequentially different control value points, in each case the resulting from the change in the control value change in the total power consumption is determined, as they are from the meter readings of the energy meter 2 results.

At step 78 The performance profiles can be saved when the learning phase is completed. If not every possible control value has been approached, an interpolation and / or extrapolation of the previously based on measurements of the energy counter 2 determined power consumption are made as a function of the control value.

The performance profiles for the multiple consumers may be local to the device 40 stored and for the subsequent determination of the energy consumption of multiple consumers 11 - 13 be used.

9 is a flowchart of a method 80 , The procedure 80 can from the device 40 be executed according to one embodiment, to monitored from control values of the consumer 11 - 13 in combination with the performance profiles to determine the energy consumption consumer-specific and / or for a group of consumers.

At step 81 can control signals to consumers 11 - 13 be monitored with which the control unit 14 the consumers 11 - 13 controls. The monitoring of the control signals may include receiving and processing the on a bus 15 or another control channel 16 comprise transmitted control signals.

The control signals can be processed to the time-dependent change of control values of the different consumers 11 - 13 to determine.

At step 82 Depending on the control values, for example dimming values and / or color values of luminaires, in combination with the power profiles, the current power consumption of all consumers 11 - 13 be determined. These can be used to increase the energy consumption of each consumer 11 - 13 be used, which is taken into account in a conventional manner, the period in which the current power consumption is kept constant before a new change in the control value.

Also during the determination of the energy consumption of consumers 11 - 13 can the energy meter 2 be queried, for example, to update the performance profiles, further improve and / or by the device 40 determined energy consumption of consumers 11 - 13 to undergo a consistency check.

10 is a flowchart of a method 85 , The procedure 85 can from the device 40 be executed according to one embodiment, to monitored from control values of the consumer 11 - 13 in combination with the performance profiles to determine the energy consumption consumer-specific and / or for a group of consumers while updating the performance profiles.

steps 81 and 82 can as with reference to 9 be executed described.

While the performance profiles of consumers 11 - 13 can be used to determine the energy consumption, in step 86 the total power consumption, over the supply lines 3 . 4 takes place, with which consumers too 11 - 13 be determined. These can be time sequentially at least counter readings of the energy meter 2 be queried to determine the total power consumption. The total power consumption can be repeated for different control values of at least one of the consumers 11 - 13 be determined.

At step 87 The performance profile, which relates the set values of a consumer with 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 corresponding power consumption was originally determined by interpolation or extrapolation, the originally only calculated power consumption can be replaced by an improved power consumption, which is determined by querying the energy meter during operation.

With devices, systems and methods according to embodiments can with only one device 40 for determining the energy consumption associated with a control channel 15 . 16 about which multiple consumers 11 - 13 a lighting system 10 are controlled, the energy consumption of each of the plurality of consumers are determined.

While embodiments have been described with reference to the figures, modifications may be made in other embodiments.

While in devices, systems and methods the device 40 can be configured to perform a calibration automatically, in which for several control values each associated power consumption of a consumer depending on meter readings of an energy meter 2 is learned, the relationship between control value and power consumption in other ways in the device 40 be saved. For example, the device 40 Calibration data describing the relationship between manipulated value and power consumption for each of the multiple consumers 11 - 13 from a memory of the corresponding consumer 11 - 13 Download. Alternatively or additionally, calibration data describing the relationship between manipulated value and power consumption may be provided for each of the plurality of consumers 11 - 13 during the configuration or picking of the lighting system 1 custom in the device 40 get saved.

While in devices, systems and methods the device 40 may be a device that performs both the calibration and the determination of energy consumption in Nutzbetrieb, two separate devices can be used for the different functions. For example, the calibration can first be carried out with a first device in which the relationships between control values and power consumption of the consumers are automatically learned. The power profiles determined in this way are transferred to a second device, which is then in use of the lighting system 10 the determination of the energy consumption of several consumers takes over. The first device can be used for the configuration and / or picking of the lighting system 10 used device that does not have to remain permanently installed.

While in devices, systems and procedures consumers 11-13 may be all lights, at least one of the consumers may also be different from a light and a control gear. For example, for different states of a sensor, a control device 14 or another device, the disclosed techniques are used to determine the associated power consumption. Different control values can, for example, correspond 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 consumers of a lighting system depending on control values of the lights or other consumers.

Claims (24)

Device for determining energy consumption for consumers ( 11 - 13 ) of several consumers ( 11 - 13 ) having illumination system ( 10 ), the device ( 40 ) comprises: a processing device ( 42 ) arranged to depend on at least one manipulated variable of a consumer ( 11 - 13 ) of the lighting system ( 10 ) an energy consumption of the consumer ( 11 - 13 ) to investigate. Device according to claim 1, wherein the device ( 40 ) is set up for a calibration in which for multiple control values of the consumer ( 11 - 13 ) a respectively assigned power consumption of the consumer ( 11 - 13 ) is determined automatically. Apparatus according to claim 2, comprising an energy meter interface ( 41 ) for communicating with a power or power sensing device ( 2 ). Device according to claim 3, wherein the device ( 40 ) is set up to enable the calibration depending on the energy meter interface ( 41 ) to perform energy meter signals received. Apparatus according to claim 4, wherein the energy meter signals contain information about a total energy consumption or a total power consumption of a system ( 11 - 13 . 31 . 32 ), which covers several consumers ( 11 - 13 ) of the lighting system ( 10 ). Apparatus according to claim 5, wherein the device ( 40 ) is set up to perform the calibration, while not to the lighting system ( 10 ) consumers ( 31 . 32 ), the energy consumption of which is recorded by the energy consumption or performance recording device ( 2 ), have a predefined power consumption, in particular a constant power consumption. Device according to one of claims 3 to 6, wherein the device ( 40 ) is arranged to perform the calibration based on one of the power consumption or power sensing means ( 2 ) recorded in response to a manipulated variable change for the consumer ( 11 - 13 ) occurs to execute. Device according to one of claims 2 to 7, wherein the device ( 40 ) is set up to be calibrated for each of the multiple consumers ( 11 - 13 ) of the lighting system ( 10 ) via a control channel ( 15 . 16 ) are controllable, a different control values of the consumer ( 11 - 13 ) each associated power consumption of the consumer ( 11 - 13 ) automatically. Device according to one of claims 2 to 8, wherein the device ( 40 ) is set up in order to use calibration values of the multiple consumers ( 11 - 13 ) by evaluating control signals for the multiple consumers ( 11 - 13 ) to investigate. Device according to one of claims 2 to 9, comprising a storage medium ( 44 ) for non-transient storage of a result of the calibration. Device according to one of claims 2 to 10, wherein the device ( 40 ) is designed to reduce the energy consumption of the consumer ( 11 - 13 ) depending on a result of the calibration and a time-dependent change of the at least one control value to determine. Device according to one of the preceding claims, wherein the device ( 40 ) a control channel interface ( 43 ) and is arranged to switch off at the control channel interface ( 43 ) detected signals the at least one control value of the consumer ( 11 - 13 ) to investigate. Apparatus according to claim 12, wherein the control channel interface ( 43 ) to the consumer ( 11 - 13 ) directed control signals is set up. Device according to one of the preceding claims, wherein the device ( 40 ) is designed to reduce the energy consumption of several consumers ( 11 - 13 ) individually for each of the multiple consumers ( 11 - 13 ) and / or for each of several groups of consumers of the lighting system ( 10 ) to investigate. Apparatus according to claim 14, comprising an output interface ( 47 ) to spend for each of the multiple consumers ( 11 - 13 ) individually and / or for each of several groups of consumers of the lighting system ( 10 ) determined energy consumption s. A lighting system comprising: multiple consumers ( 11 - 13 ) and a device ( 40 ) for determining an energy consumption according to any one of claims 1 to 15. Lighting system ( 10 ) according to claim 16, comprising: a control device ( 14 ) arranged to provide control signals to the plurality of consumers ( 11 - 13 ), the device ( 40 ) is arranged to determine the energy consumption to monitor the control signals and the energy consumption depending on the control signals for the plurality of consumers ( 11 - 13 ) to investigate. Lighting system ( 10 ) according to claim 17, comprising: a control channel ( 15 . 16 ), with which the control unit ( 14 ), several consumers ( 11 - 13 ) and the device ( 40 ) are coupled to determine the energy consumption. Lighting system ( 10 ) according to any one of claims 16 to 18, wherein the plurality of consumers ( 11 - 13 ) comprise a plurality of lights. System comprising a lighting system ( 10 ) according to one of claims 16 to 19, and a power or power detection device ( 2 ) for recording a total energy intake or total consumption of consumers ( 11 - 13 . 31 . 32 ) of the system. Method for determining energy consumption for consumers ( 11 - 13 ) of several consumers ( 11 - 13 ) having illumination system ( 10 ), the method comprising: determining a consumer's energy consumption ( 11 - 13 ) of the lighting system ( 10 ) depending on at least one control value of the consumer ( 11 - 13 ). The method of claim 21, comprising: performing an automatic calibration in which for a plurality of control values of the consumer ( 11 - 13 ) a respectively assigned power consumption of the consumer ( 11 - 13 ) is determined automatically. The method of claim 22, wherein the automatic calibration comprises: processing control signals for the plurality of consumers ( 11 - 13 ) and energy meter signals, wherein the energy meter signals contain information about a total energy consumption or a total power consumption of a system ( 11 - 13 . 31 . 32 ), which covers several consumers ( 11 - 13 ) of the lighting system ( 10 ). Method according to one of claims 21 to 23, which is dependent on the device ( 40 ) according to one of claims 1 to 15 or of the lighting system ( 10 ) is carried out automatically according to one of claims 16 to 19.

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