Abstract:
There is provided a method for advanced configuration and initialization of a luminaire system. The luminaire system comprises one or more lighting devices ( 102 ), an apparatus ( 104 ) and a user interface ( 106 ). The apparatus comprises a light sensor. One or more of the lighting devices are not connected to a central controller by means of a wired/wireless connection. Therefore, techniques and procedures to use manual interaction by an operator ( 114 ) to control these lighting devices are proposed. The proposed techniques enable backward compatible and low-cost implementations of advanced luminaire initialization and configuration. Moreover, this invention proposes to combine the user input, sensing and control functionality into one device, thereby reducing the total cost of implementation and ownership of the proposed system. A corresponding system and apparatus are also presented.

Description:
FIELD OF THE INVENTION 
     The invention relates to the field of luminaire systems, more specifically to a method of configuring a luminaire system, a system, an apparatus and a computer program product thereof. 
     BACKGROUND OF THE INVENTION 
     Many lighting systems require configuration in order to produce a satisfactory illumination environment. Examples of such environments include office spaces, private homes, public outdoor spaces, theatres or other entertainment venues, retail premises and the like. It is often a cumbersome process to determine the lighting conditions for such environments, especially if the lighting system comprises a plurality of different light sources. Therefore these types of tasks often require many man hours. 
     The U.S. patent application 2002/0043938 discloses a system and method for setting addresses and is directed towards a system for setting addresses by communicating a unique identifier from a network device to a remote receiver, communicating the unique identifier from the remote receiver to a controller, generating a network address, and communicating the network address from the controller to the network device from which the unique identifier was originally communicated. The reference thus teaches of a system and method for configuring network devices by associating the network devices with network addresses. 
     SUMMARY OF THE INVENTION 
     A number of disadvantages of the cited art has been identified in light of the present invention. As stated above the U.S. patent application 2002/0043938 discloses a system and method for receiving identification information for setting addresses. However the method is dependent on setting up a dedicated and traditional communications channel between the device and the controller. Utilizing such traditional communications hence requires a dedicated transmitter at the device-side and a dedicated receiver at the controller-side, wherein the transmitter and receiver comprise either antennas suitable for wireless communications or sockets suitable for wired communications. 
     Thus both complexity and maintenance costs for the system are increased by including the above means for communication. Wireless communication, such as radio communication, has the added disadvantage of negatively effect other radio-based equipment used in the environment in which the lighting system is to be installed. Wireless communication is also known to be error-prone. Wired communication has the added disadvantage of requiring ungainly cables between each one of the devices and the controller. These cables also need to be suitably positioned. Cables also cause extra costs for the system. 
     In view of the above, an objective of the invention is to solve or at least reduce the problems discussed above. One object is to provide initialization and configuration of a lighting system. Generally, the above objectives are achieved by the attached patent claims. 
     According to a first aspect of the present invention there is thus provided a method of configuring a luminaire system, wherein the luminaire system comprises at least one lighting device, an apparatus and a user interface, wherein the apparatus comprises a light sensor, and wherein the method comprising the steps of: receiving, by the light sensor, light from the at least one lighting device, wherein the light comprises lighting data; identifying the at least one lighting device based on the lighting data; determining lighting settings for the at least one identified lighting device; presenting, via the user interface, information pertaining to the determined lighting settings; and manually adjusting the at least one identified lighting device based on the presented information. 
     Hence such a method enables for advanced and low-cost initialization and configuration of a non-networked lighting system based on manual interaction in order to overcome the disadvantages as identified above. The lighting devices are thus controlled by a manual action of an operator and neither wired nor wireless links between the sensor-side and the lighting device-side are required for controlling the configuration. As such it enables low-cost and backward compatible operation with systems based on configuration methods utilizing either wired or wireless links. 
     The method may further comprise the step of calculating a difference between the lighting data and target lighting data for the at least one identified lighting device; and the determining of lighting settings may be based on this difference. 
     The method thus allows for both the option of determining lighting settings for the lighting devices based on default values and the option of determining lighting settings based on the received and measured lighting conditions for each individual lighting device in the system. 
     The step of manually adjusting the at least one identified lighting device may be performed by manually adjusting at least one actuator of the at least one identified lighting device. 
     Thus such an actuator, which may be defined by one or more DIP-switches (Dual In-line Package), a keypad, or by reading settings stored on an electrical or mechanical component, such as a programmable memory, which is inserted into the lighting device, allows for an operator to provide the at least one lighting device with new settings in an easy and user-friendly manner. 
     The user interface may be comprised in the apparatus. 
     This embodiment has the advantage of providing one single device for determining new settings for the at least one lighting device and presenting information pertaining to the settings on a user interface comprised in the same device, thereby reducing the number of devices needed to configure a lighting system 
     The luminaire system may further comprise an external computer, wherein the external computer comprises the user interface, and wherein the method further comprises the step of sending the lighting data from the apparatus to the external computer; and wherein the identifying, the calculating, the determining and the presenting are performed by the external computer. 
     Thus having an external computer yields the added advantage of providing a method in which an external and power computing unit may be used. The external computer, preferably a laptop computer or a personal digital assistant (PDA), may thus be brought by the operator to the premises of installation and configuration. When the configuration is completed the external computer may be removed, thus reducing the overall complexity of the installed lighting system. 
     The method may further comprise the step of transmitting information pertaining to the determined lighting settings from the apparatus to the at least one identified lighting device by one from the group of a wireless transmission and a wired transmission. 
     Hence such a method allows for scenarios in which both lighting devices with and without wired/wireless communications capabilities coexist in the same lighting system. In such a scenario the apparatus may thus also be equipped with wired/wireless communications capabilities. As such it will control the lighting devices operatively connected to the apparatus via wired/wireless links and the other lighting devices via the manual interaction as described above, thus enabling both backward compatible and low-cost implementations of advanced luminaire initialization and configuration. 
     The lighting data may comprise a lighting device identification code. 
     Utilizing such an identification code thus provides the added benefit of providing means for uniquely identifying each individual lighting device in the lighting system. Having the lighting device identification code embedded in the emitted light provides the additional advantage that separate means for identification, such as network addresses or the like, or transmitting/receiving the identity, such as an antennas or network sockets are not necessary. 
     The lighting settings may pertain to at least one from the group of colour, colour temperature, intensity. 
     Thus the proposed method allows for identifying and measuring a number of light properties. 
     The steps of receiving light, identifying at least one lighting device, determining lighting settings, presenting information and manually adjusting the at least one lighting device may be performed during at least a first configuration iteration and a second configuration iteration. 
     Hence the proposed steps for configuring of a lighting systems may be repeated if necessary. This embodiment may be preferred for large-scale large-complexity lighting systems, which may require more than one configuration iteration before new lighting conditions are obtained. The here proposed multiple iterations might be required due to limited accuracy in sensing or due to limited resolution in the manual transfer of the data. It might for example not be possible transfer a 64-bit value to the luminary using a DIP switch interface. A procedure could for instance be that in a first step the most significant bits of the intensity are controlled set and in following step the next set of bits, until in the final iteration the least significant bits are controlled. 
     According to a second aspect of the present invention there is provided a luminaire system comprising at least one lighting device, an apparatus and a user interface, wherein the apparatus comprises a light sensor, and wherein light from the at least one lighting device is received by the light sensor, wherein the light comprises lighting data; the at least one lighting device is identified based on the received lighting data; lighting settings for the at least one identified lighting device are determined; information pertaining to the determined lighting settings is presented via the user interface; and the at least one identified lighting device is manually adjusted based on the presented information. 
     Hence the method of configuring a luminaire system may be realized in such a lighting system. 
     The luminaire system may further comprise an external computer, wherein the external computer comprises a controller, and wherein the calculating and the determining are performed by the controller of the external computer; and the user interface is comprised in said computer. The apparatus may further comprise a further user interface, and wherein information pertaining to the determined lighting settings is presented by the further user interface. 
     At least one of said at least one lighting device may comprise a receiver and the apparatus may further comprise a transmitter, and information pertaining to the determined lighting settings may be transmitted by the transmitter to the receiver(s) by one from the group of a wireless transmission and a wired transmission. Alternatively the at least one lighting device may not comprise any communication means for automatically receiving determined lighting settings. 
     According to a third aspect of the present invention there is provided an apparatus for configuration of a luminaire system, wherein the apparatus comprises a light sensor and a controller, and wherein light from at least one lighting device is received by the light sensor, wherein the light comprising lighting data; the at least one lighting device is identified by the controller based on the received lighting data; lighting settings for the at least one identified lighting device are determined by the controller; and information pertaining to the determined lighting settings is transmitted to a user interface. 
     Hence the method of configuring a luminaire system may be realized by utilizing such an apparatus. 
     The apparatus may further comprise the user interface, and the information may be presented via the user interface. 
     A difference between the received lighting data and target lighting data for the at least one identified lighting device may be calculated by the controller; and the lighting settings may be based on the difference. 
     The apparatus may further comprise a transmitter and information pertaining to the determined lighting settings may be transmitted by the transmitter to at least one of the at least one lighting device by one from the group of a wireless transmission and a wired transmission. 
     According to a fourth aspect of the present invention there is provided a computer program product, comprising computer program code which is stored on a computer-readable storage medium and which, when executed on a processor, carries out the method according to any one of the embodiments described above. 
     Thus such a computer program product enables for the proposed method to be downloaded, installed, and run on an external computer, such as a laptop computer or a personal digital assistant. 
     These and other aspect of the invention will be apparent from and elucidated with reference to the embodiments described hereinafter. 
     Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to “a/an/the/said [element, device, component, means, step, etc]” are to be interpreted openly as referring to at least one instance of said element, device, component, means, step, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Other features and advantages of the present invention will become apparent from the following detailed description of a presently preferred embodiment, with reference to the accompanying drawings, in which: 
         FIG. 1(   a )-( d ) show a luminaire systems according to embodiments; 
         FIG. 2(   a )- 2 ( b ) show a lighting device according to embodiments; 
         FIG. 2(   c ) shows an actuator according to an embodiment; 
         FIG. 2(   d )-( f ) show an apparatus according to embodiments; 
         FIG. 3(   a )-( b ) show a flowchart for a method according to embodiments. 
     
    
    
     DETAILED DESCRIPTION OF EMBODIMENTS 
     The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which certain embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of example so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like numbers refer to like elements throughout. 
       FIG. 1(   a ) shows a luminaire system  100  in which the invention may readily apply. It should be noted that the term “luminaire” means a device that is used for providing light in a room, for purpose of illuminating objects in the room. Examples of such light providing devices include lighting devices and light sources. A room is in this context typically an apartment room or an office room, a gym hall, a room in a public place or a part of an outdoor environment, such as a part of a street. Accordingly, an luminaire is not, for example, a video projector or a backlight for a TV or a mobile phone. 
     The luminaire system  100  comprises at least one lighting device  102 . Each lighting device  102 , which may also be denoted as a light source, emits light. In the example of  FIG. 1(   a ) the system  100  comprises three such lighting devices  102 . For clarity reasons only one of the three lighting devices has been associated with a reference numeral in  FIG. 1(   a ). Each lighting device  102  may further be associated with a number of lighting settings, e.g. colour, colour temperature and intensity of the emitted light. The lighting settings for each lighting device  102  in  FIG. 1(   a ) may be manually adjusted by an operator  114 . 
     The system further comprises an apparatus  104  for detecting the light emitted by the at least one lighting device  102 . As will be discussed below with reference to  FIG. 2(   d )-( f ) the apparatus is preferably arranged to comprise a light sensor  214  for detecting said light. 
     The system also comprises a user interface  106 . In the embodiment as disclosed in  FIG. 1(   a ) the user interface  106  is comprised in the apparatus  104 , as marked by the dotted lines. However, as will be further discussed below, the user interface  106  may also be separated from the apparatus  106 . 
     In the typical scenario of  FIG. 1(   a ), the light sensor  214  of the apparatus  104  detects the light emitted by the one or more lighting device  102 . The light comprises lighting data which may be associated with properties of the light, such as colour of the emitted light, the colour temperature of the emitted light and the intensity of the emitted light. The lighting data may further be associated with a unique lighting device identification code. For example such an identification code may be realized as a pulse width modulation code. As a second example the identification code may be realized by using code division multiple access techniques. It is to be understood that other embodiments for the realization of identification codes are known to a person skilled in the art. 
     The apparatus  104  is further arranged to identify an individual lighting device  102  from the group of said at least one lighting device  102 . For example the sensor may be able to detect the physical direction from which the detected light is emanating. These physical directions are in  FIG. 1(   a ) schematically denoted by arrows  108 , which indicate the light emanating from the lighting devices  102 . As a second example the individual lighting devices  102  may be identified by said lighting device identification codes, which, as discussed above, may be embedded in the emitted light contributions of the lighting devices  102 . Since each individual lighting device  102  is associated with a unique lighting device identification code each individual lighting device  102  may be identified. 
     Lighting settings for the identified lighting device(s)  102  are then determined. As will be disclosed in more detailed next these settings are either determined by default settings or by comparing the received light with target lighting data. 
     According to one embodiment the identified lighting device(s)  102  are associated with default lighting settings. One exemplary situation of this scenario is the initial configuration of a newly installed lighting system. Default settings, as, say, determined by computer simulation, real-life measurements on the premises of installation, or other suitable premises, may then be directly presented to the operator for each identified lighting device(s). Thus for such an embodiment the lighting device(s) only need to be identified; lighting data concerning other parameters of the emitted light need not to be considered by the sensor  214 . 
     According to one embodiment the light sensor  214  of the apparatus  104  may estimate the strength of the contributions of the different detected and identified lighting devices. The strength may for example pertain to the colour of the emitted light, the colour temperature of the emitted light and the intensity of the emitted light. The strength may pertain to one of these properties or a combination of several of these properties. By comparing these measurements with target lighting data, as defined by user inputs or standard settings, wherein the user input or standard settings pertain to, for example the required colour, colour temperature and/or intensity, lighting settings for the different lighting devices  102  may be determined. The target lighting data is thus associated with lighting data defining the detected light when pertaining to ideal settings. 
     The comparison may preferably be embodied by determining a relationship, such as calculating a difference, between the received light of the identified lighting device  102  and the target lighting data. 
     The determined lighting settings are then communicated to the operator  114  by presenting information via a user interface  106 . In  FIG. 1(   a ) this presentation is visualized by the arrow  110 . 
     As will be further discussed in connection with  FIG. 2(   e )- 2 ( f ) the user interface  106  may comprise a display and/or a sound emitter. For example, if the user interface comprises a display the information may be presented as a combination of text and images on said display; if the user interface comprises a sound emitter, such as a loudspeaker, the information may be presented as a synthesized voice message. 
     Based on this presented information, the operator  114  can manually adjust the settings of the light device(s)  102  by manual interaction. In  FIG. 1(   a ) the manual adjustment is visualized by the arrow  112 . 
     This manual interaction can be performed in different ways. As a first example, the manual interaction may be accomplished by manually adjusting settings of a user interaction control interface, such as an actuator  204 , comprised in the lighting device  102 , e.g., by means of switching one or more DIP-switches (Dual In-line Package) or entering settings using a keypad of said lighting device  102 . As is known to the skilled person such a DIP-switch may be designed to be used on a printed circuit board along with other electronic components and is commonly used to customize the behaviour of an electronic device for specific situations. 
     As a second example an external device may be inserted in, or connected to, the lighting device  102 . The external device may have electrical or mechanical components, e.g. a resistor, with values corresponding to different settings of the lighting device  102 . That is, consider a first and a second resistor associated with a first and a second resistor value, respectively. Consider further that the settings correspond to a first level and a second level, wherein the first level is lower than the second level. Assuming that the resistor value of the first resistor is larger than the resistor value of the second resistor; the first resistor corresponds to the lower value of the setting whilst the second resistor corresponds to the higher value of the setting. Thus the lower setting level may be chosen by inserting a device having the first resistor value, and vice versa. 
     The settings may also be manually adjusted by inserting, by an operator  114 , a memory or programmable device in the lighting device  102 , which has been programmed and/or has information stored on it as determined by the apparatus  104 . 
     According to a further example the operator  114  may manually connect the apparatus  104  to the lighting device  102 , e.g., by a serial or a USB (Universal Serial Bus) interface each time the lighting device  102  is to be provided with new settings. 
     For example, the apparatus  104  may in this case indicate to an operator when the new settings have been determined in order for the operator to know when he/she should manually connect the apparatus  104  to the lighting device  102  thereby enabling the new settings to be transmitted from the apparatus  104  to the lighting device  102 . This indication may be realized by presenting an alert message via the user interface  106 , by a sound signal or by a light signal provided by the apparatus  104 . 
     A luminaire system  116  according to another embodiment in which the invention may readily apply is shown in  FIG. 1(   b ). As in  FIG. 1(   a ) the luminaire system  116  comprises one or more lighting devices  102  and an apparatus  104 , and in which system  116  the one or more lighting devices  102  is/are manually adjustable by an operator  114 . The exemplary luminaire system  116  of  FIG. 1(   b ) furthermore comprises a portable external computer  122 . The portable external computer  122  may be a laptop computer, a PDA (Portable Digital Assistant), or the like. As is known in the art such an external computer  110  comprises a controller suitable for performing various calculations and a user interface suitable for presenting information. 
     As in  FIG. 1(   a ) the apparatus  104  advantageously comprises a light sensor which is capable of detecting light  108  from the at least one lighting devices  102 . However, in contrast to the luminaire system  100  of  FIG. 1(   a ) the detected lighting data is transmitted to the external computer  122 . 
     In order to enable such a transmission the apparatus  104  is provided with a transmitter  118  and the external computer is provided with a receiver. The transmission  120  may either be wired or wireless using standard communication protocols such as e.g. Bluetooth (Bluetooth is a registered trademark), IEEE 802.11x, a USB connection, and so on as is known to the skilled person. 
     The controller of the external computer  122  may be arranged to identify an individual lighting device  102  from the group of said at least one lighting device  102 , based in information provided by the sensor of the apparatus  104 . The controller may further be arranged to compare the measured lighting data with target lighting data and thereby also determine lighting settings for the different lighting devices  102 . It should however be noted that one or more of these steps may be comprised in the apparatus  104 . 
     Thus the external computer  122  enables for using a powerful computation device for determining lighting settings for the lighting device(s)  102 . This also means that the computing resources associated with the apparatus  104  may be significantly reduced. 
     The computed lighting settings may then be communicated to the operator  114  by presenting information via a user interface comprised in the external computer  122 . In  FIG. 1(   b ) this presentation is visualized by the arrow  110 . Based on this presented information, the operator  114  can manually adjust the settings of the light devices by manual interaction. In  FIG. 1(   b ) the manual adjustment is visualized by the arrow  112 . 
     A suitable scenario might be a situation in which a laptop computer is brought by a lighting installer, or operator, for installation of the lighting system. After installation the laptop computer is no longer required in the system. 
       FIG. 1(   c ) shows another embodiment of a luminaire system  124 . As in  FIG. 1(   a ) the luminaire system  124  of  FIG. 1(   c ) comprises at least one lighting device  102  and an apparatus  104 , and in which system  124  the one or more lighting devices  102  is/are manually adjustable by an operator  114 . In the luminaire system  124  of  FIG. 1(   c ) the apparatus  104  comprises a user interface  106 , realized as e.g. a display or a loudspeaker, which user interface  106  may present information to a first operator  124 , wherein the information pertains to detected lighting data from the at least one lighting devices  102 . This presentation is in  FIG. 1(   c ) denoted by the arrow  110 . As schematically denoted by the arrow  126 , the lighting data, as presented via the user interface  106 , may then be manually provided to the external computer  122  by the operator  124 . 
     The controller of the external computer  122  may be arranged to identify an individual lighting device  102  from the group of said at least one lighting device  102 , based in information provided by the sensor of the apparatus  104 . The controller may further be arranged to compare the measured lighting data with target lighting data and thereby also determine lighting settings for the different lighting devices  102 . It should however be noted that one or more of these steps may be comprised in the apparatus  104 . 
     The computed lighting settings may then be communicated to the an operator  114  by presenting information via a user interface comprised in the external computer  122 . In  FIG. 1(   b ) this presentation is visualized by the arrow  128 . Based on this presented information, the operator  114  can manually adjust the settings of the light devices by manual interaction. In  FIG. 1(   c ) the manual adjustment is visualized by the arrow  112 . 
     A luminaire system  124  according to such as scenario may thus handle the case when neither the apparatus  104  nor the external computer  122  comprises suitable communication interfaces. It may also be the case that both the apparatus  104  and the external computer  122  comprise communication means, but that a common communications protocol may not be deployed. 
       FIG. 1(   d ) shows another embodiment of a luminaire system  130 . As in  FIG. 1(   a ) the luminaire system  130  of  FIG. 1(   d ) comprises at least one lighting device  102 ,  136  and an apparatus  104 , and in which system  130  the at least one lighting device  102 ,  130  is/are manually adjustable by an operator  114 . In the luminaire system  130  of  FIG. 1(   d ) the apparatus  104  is provided with communication means  132 , such as an antenna. Also, at least one  136  of the at least one lighting devices  102 ,  136  is provided with communication means  138 , such as an antenna. 
     Communication between the apparatus  104  and the at least one devices  136  of the at least one lighting devices  102 ,  136  is thereby enabled. In the exemplary scenario as disclosed in  FIG. 1(   d ) the apparatus  104  and the lighting device  136  have been provided with antennas, and the wireless communication between these entities has been indicated  134 . However, note that the communication may also be wired. 
     As in  FIG. 1(   a ) the apparatus  104  detects, identifies and determines lighting settings pertaining to the light emitted by the at least one lighting devices  102 ,  136 . For the at least one  136  of the at least one lighting devices  102 ,  136  which is connected to the apparatus  104  the determined settings may be transferred directly and automatically to the connected lighting device  136 . For the lighting device(s)  102  which are not operatively connected to the apparatus  104  the operator  114  manually adjusts the settings of the lighting devices  102  by any of the methods as discussed with references to  FIG. 1(   a )-( c ). 
       FIG. 2(   a ) shows a lighting device  202 , which may be one of the at least one lighting devices  102  of  FIG. 1(   a )-( d ). The lighting device  202  emits light, as schematically indicated by the radiating lines  203 . The emitted light comprises lighting data which may be associated with properties of the light, such as colour of the emitted light, the colour temperature of the emitted light and the intensity of the emitted light. The lighting data may further be associated with a unique lighting device identification code. Such an identification code may be realized as a pulse width modulation code or by using code division multiple access techniques. The lighting device  202  further comprises an actuator  204  for receiving manual user settings. 
       FIG. 2(   b ) shows a lighting device  202 , as in  FIG. 2(   a ), further comprising communication means  206 , for enabling wired or wireless communications. For example the communication means  206  may be realized by an antenna, by a USB interface, or by a network interface. 
       FIG. 2(   c ) shows an actuator  204 , such as the actuator  204  of the lighting device  202  of  FIG. 2(   a ) or  FIG. 2(   b ). In  FIG. 2(   c ) the actuator  204  has been realized by two DIP-switches  208 ,  210 . That is, by manually setting the DIP-switches  208 ,  210  the lighting device  202  may be manually adjusted. 
       FIG. 2(   d ) shows an apparatus  212 , such as the apparatus  104  of  FIG. 1(   a ). The apparatus  212  comprises a sensor  214 , preferably a light sensor. Thus the sensor  214  is able to receive light emanating from at least one lighting device, such as the lighting device  202  of 
       FIG. 2(   a ). As is known to the skilled person the sensor  214  transforms the incoming received light to electrical signals, which signals may then be transferred to a computing means for further analysis. Such a computing means, realized e.g. by a controller or by a processor, may be comprised in the apparatus  212 . The further analysis may include comparing the measured incoming light with target lighting data, as defined by user inputs or standard settings and determining new lighting settings for the lighting device. 
       FIG. 2(   e ) shows an apparatus  212 , as in  FIG. 2(   d ), further comprising a user interface  216 . Via such a user interface  216  the apparatus  212  may present information pertaining to the determined lighting settings. The user interface  216  may be realized by a display or by a loudspeaker. 
       FIG. 2(   f ) shows an apparatus  212 , as in  FIG. 2(   e ), further comprising communication means  218 , for enabling wired or wireless communications with one or more lighting devices. For example the communication means  218  may be realized by an antenna, by a USB interface, or by a network interface. 
       FIG. 3(   a )-( b ) shows flowcharts for a method of configuring a luminaire system as shown in  FIG. 1(   a )-( d ) according to different embodiment. It is assumed that at least one lighting device  102 ,  136 ,  202 , an apparatus  104 ,  212  comprising a light sensor  214  and a user interface  106 ,  216 , have been provided and properly installed in the luminaire system. In a step  302  light  108  is received by the sensor from the at least one lighting device. The light comprises lighting data and the lighting data may comprise a lighting device identification code. 
     Using information contained in the lighting data the at least one lighting device can in a step  304  be identified. Lighting settings for the at least one identified lighting device are then determined in a step  306 . The lighting settings may be default settings or the lighting settings may be determined based on the received lighting data; the lighting settings may pertain to at least one from the group of colour, colour temperature and intensity. In a step  308  information pertaining to the determined lighting settings is presented via the user interface. The user interface may be comprised in the apparatus or in an external computer. 
     The at least one identified lighting device may then be manually adjusted, by for example an operator, which observes and uses the presented information. The operator may manually adjust the at least one lighting device by manually adjusting at least one actuator of the at least one identified lighting device. 
     According to one embodiment the method may further comprise in a step  312  calculating a difference between the lighting data and target lighting data for the at least one identified lighting device. In this case the determining of lighting settings is based on the calculated difference. 
     The luminaire system may further comprises an external computer and the external computer may comprise the user interface. The method of configuring a luminaire system may then further comprise a step  314  of sending the lighting data from the apparatus to the external computer. The identifying, the calculating, the determining and the presenting may then be performed by the external computer. 
     The method may further comprise a step  316  of transmitting information pertaining to the determined lighting settings from the apparatus to the at least one identified lighting device by one from the group of a wireless transmission and a wired transmission. 
     According to one embodiment the method may further comprise iterating  318  at least the receiving light step  302 , identifying step  304 , the determining settings step  306 , the presenting information step  308  and the manually adjusting step  310  during at least a first configuration iteration and a second configuration iteration. This iteration procedure may also include at least one of the steps of sending light data  314 , calculating a difference  312  and transmitting information  316 . In this embodiment identifiers may only be sent from the at least one lighting device after the operator has manually adjusted the settings during one iteration round. 
     The invention has mainly been described above with reference to a few embodiments. However, as is readily appreciated by a person skilled in the art, other embodiments than the ones disclosed above are equally possible within the scope of the invention, as defined by the appended patent claims.