METHOD AND DEVICE FOR LIGHT COMMISSIONING

Abstract

A method (100) and a device (105) for commissioning a lighting system (110) arranged in an indoor space (120), wherein the lighting system comprises a plurality of light sources (130a-e), are provided. The method comprises the steps of iteratively defining a position, P.sub.i, in the indoor space, setting the intensity level, I.sub.i, of at least one light source in a subspace, S.sub.i, comprising the position, P.sub.i, to an intensity level value, measuring a light intensity, I.sub.Li, in the position, P.sub.i, and registering a relation between the measured light intensity, I.sub.Li, in the position, P.sub.i, and the measured light intensity, I.sub.Li1, in the position, P.sub.i1, to a path register (150). The method further comprises the step of creating a navigation path (160) in the indoor space based on the path register.

Claims

1. A method for creating a navigation path for navigation in an indoor space based on measured lighting from a lighting system arranged in the indoor space, wherein the lighting system comprises a plurality of light sources, wherein the method comprises the steps of: defining a position, P.sub.0, in the indoor space, defining a subspace, S.sub.0, of the indoor space comprising the position, P.sub.0, wherein the subspace, S.sub.0, comprises at least one light source of the plurality of light sources, setting the intensity level, I.sub.0, of the at least one light source in the subspace, S.sub.0, to an intensity level value, measuring a light intensity, I.sub.L0, in the position, P.sub.0, and in an iterative manner from i=1, 2, . . . , to n, defining a position, P.sub.i, in the indoor space, defining a subspace, S.sub.i, of the indoor space comprising the position, P.sub.i, wherein the subspace, S.sub.i, comprises at least another light source of the plurality of light sources, setting the intensity level, I.sub.i, of the at least one light source in the subspace, S.sub.i, to an intensity level value, measuring a light intensity, I.sub.Li, in the position, P.sub.i, and registering and storing a spatial relation between the measured light intensity, I.sub.Li, in the position, P.sub.i, and the measured light intensity, I.sub.Li1, in the position, P.sub.i1, to a path register, and creating a navigation path in the indoor space based on the path register.

2. The method of claim 1, wherein the step of setting the intensity level, I.sub.i, of the at least one light source comprises setting the intensity level, I.sub.i, of the at least one light source in the subspace, S.sub.i, to a randomly selected intensity level value.

3. The method of claim 1, further comprising: iteratively performing the steps of the method until the intensity level, I.sub.i, of each light source, respectively, of the plurality of light sources has been set.

4. The method of claim 1, wherein the position, P.sub.i, in the indoor space is at a floor level of the indoor space.

5. The method of claim 1, wherein before the setting of the intensity level, I.sub.i, of the at least one light source, one of: the at least one light source is turned off, and the at least one light source is set to a predetermined intensity level, I.sub.P, is fulfilled.

6. A device for creating a navigation path for navigation in an indoor space based on measured lighting from a lighting system arranged in the indoor space, wherein the lighting system comprises a plurality of light sources, wherein the device is configured to: position itself in a position, P.sub.0, in the indoor space, determine a subspace, S.sub.0, of the indoor space comprising the position, P.sub.0, wherein the subspace, S.sub.0, comprises at least one light source of the plurality of light sources, set the intensity level, I.sub.0, of the at least one light source in the subspace, S.sub.0, to an intensity level value, measure a light intensity, I.sub.L0, in the position, P.sub.0, and in an iterative manner from i=1, 2, . . . , to n, position itself in a position, P.sub.i, in the indoor space, determine a subspace, S.sub.i, of the indoor space comprising the position, P.sub.i, wherein the subspace, S.sub.i, comprises at least another light source of the plurality of light sources, set the intensity level, I.sub.i, of the at least one light source in the subspace, S.sub.i, to an intensity level value, measure a light intensity, I.sub.Li, in the position, P.sub.i, and register and store a spatial relation between the measured light intensity, I.sub.Li, in the position, P.sub.i, and the measured light intensity, I.sub.Li1, in the position, P.sub.i1, to a path register, and navigate in the indoor space based on the path register.

7. The device of claim 6, being configured to set the intensity level, I.sub.i, of the at least one light source in the subspace, S.sub.i, to a randomly selected intensity level value.

8. The device of claim 6, further being configured to set the intensity level, I.sub.i, of each light source of the plurality of light sources.

9. The device of claim 6, comprising: the path register, and a processor communicatively coupled to the path register, the device further being configured to via the processor, navigate in the indoor space based on the path register.

10. The device of claim 6, wherein the position, P.sub.i, in the indoor space is at a floor level of the indoor space.

11. The device of claim 6, comprising at least one of: at least one light sensor, at least one camera, and at least one interface, configured to measure the light intensity, I.sub.Li.

12. The device of claim 6, comprising at least one interface configured to set the intensity level, I.sub.i, of the at least one light source in the subspace, S.sub.i.

13. The device of claim 6, comprising: a set of wheels, and a drive unit coupled to the set of wheels, whereby the device is configured to position itself in the indoor space via the wheels and the drive unit.

14. Commissioning arrangement, comprising: a lighting system arranged in an indoor space, wherein the lighting system comprises a plurality of light sources, and the device of claim 6.

15. The commissioning arrangement of claim 14, further comprising: a wireless communication system, wherein the device is connected to the wireless communication system.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0027] This and other aspects of the present invention will now be described in more detail, with reference to the appended drawings showing embodiment(s) of the invention.

[0028] FIG. 1 schematically shows a method for commissioning a lighting system according to an exemplifying embodiment of the present invention,

[0029] FIGS. 2 and 3 schematically disclose a device for commissioning a lighting system according to exemplifying embodiments of the present invention, and

[0030] FIG. 4 schematically shows a commissioning arrangement according to an exemplifying embodiment of the present invention.

DETAILED DESCRIPTION

[0031] FIG. 1 schematically shows a method 100 for commissioning a lighting system 110 arranged in an indoor space 120, according to an exemplifying embodiment of the present invention. The indoor space 120 may be substantially any space such as a home, an office, a store, an industry site, a museum, etc. Furthermore, the indoor space 120 may have substantially any shape regarding ceiling height, isle(s), etc. The lighting system 110 arranged in the indoor space 120 comprises a plurality of light sources 130a-e. The size, shape, positioning and/or number of light sources 130a-e is arbitrary. In FIG. 1, the light sources 130a-e are exemplified as being provided in the ceiling of the indoor space 120.

[0032] The method 100 comprises the step of defining a position, P.sub.0, in the indoor space 120. The method 100 further comprises the step of defining a subspace, S.sub.0, of the indoor space 120 comprising the position, P.sub.0, wherein the subspace, S.sub.0, comprises at least one light source 130a of the plurality of light sources 130a-e. The defining or determining of the subspace, S.sub.0, may be made in different ways. For example, a (predetermined) radius may be determined from the position, P.sub.0, in order to define the subspace, S.sub.0. Here, the (initial) subspace, S.sub.0, is defined as a parallelepiped, and it is exemplified that the subspace, S.sub.0, comprises a (single) light source 130a.

[0033] The method 100 further comprises the step of setting the intensity level, I.sub.0, of the (at least one) light source 130a in the subspace, S.sub.0, to an intensity level value, and measuring a light intensity, I.sub.L0, in the position, P.sub.0. Hence, this may be interpreted as an initial step or part of the commissioning of the method 100. The method 100 further comprises performing steps in an iterative manner from i=1, 2, . . . , to n, comprising defining a position, P.sub.i, in the indoor space, and defining a subspace, S.sub.i, of the indoor space 120 comprising the position, P.sub.i, wherein the subspace, S.sub.i, comprises at least one light source of the plurality of light sources 130a-e, setting the intensity level, I.sub.i, of the at least one light source in the subspace, S.sub.i, to an intensity level value, and measuring a light intensity, I.sub.Li, in the position, P.sub.i. For example, the step of defining the position, P.sub.i, may include defining a random position, P.sub.i, in the indoor space 120. As exemplified in FIG. 1, these steps comprise defining a subspace, S.sub.1, of the indoor space 120 comprising the position, P.sub.1, wherein the subspace, S.sub.1, comprises light source 130a, setting the intensity level, I.sub.1, of light source 130a in the subspace, S.sub.1, to an intensity level value, and measuring the light intensity, I.sub.L1, in the position, P.sub.1. The step of setting the intensity level, I.sub.i, of the at least one light source may comprise setting the intensity level, I.sub.i, of the at least one light source 130a-e in the subspace, S.sub.i, to a randomly selected intensity level value. Alternatively, the setting of the intensity level, I.sub.i, of the at least one light source in the subspace, S.sub.i, may be performed according to a predetermined scheme. For example, the intensity level, I.sub.i, of the light source(s) 130a-e may be set to a predetermined percentage or level of the maximum output, e.g. 50%.

[0034] Accordingly, by following the example of FIG. 1, the subspaces, S.sub.2, S.sub.3, are defined, comprising positions, P.sub.2, P.sub.3, wherein the respective light sources 130c of subspace, S.sub.2, and light sources 130d,e, of subspace, S.sub.3, are set to intensity levels, I.sub.2, I.sub.3, I.sub.4, respectively. This iterative feature of the method 100 may be performed until the intensity level, I.sub.i, of each light source 130a-e, respectively, of the plurality of light sources has been set. Alternatively, the number of iterations, i.e. the number/integer, n, may be set in advance.

[0035] The method 100 further comprises the step of registering a (spatial) relation between the measured light intensity, I.sub.Li, in the position, P.sub.i, and the measured light intensity, I.sub.Li1, in the position, P.sub.i1, to a path register 150. It will be appreciated that the path register 150 may be provided anywhere, such as on an (external) server. The method 100 further comprises creating a navigation path 160 in the indoor space 120 based on the path register 150.

[0036] FIG. 2 schematically shows a device 105 for commissioning a lighting system 110 arranged in an indoor space 120, wherein the lighting system 110 comprises a plurality of light sources 130. It will be appreciated that the (operation of the) device 105 has many features in common with the method 100 of FIG. 1, and it is referred to FIG. 1 and the associated text for an increased understanding of the device 105. The device 105 in FIG. 2 is exemplified as a self-propelled unit, robot, or the like, comprising a set of wheels, and a drive unit coupled to the set of wheels, whereby the device is configured to position itself in the indoor space via the wheels and the drive unit. The device 105 is configured to position itself in a position, P.sub.0, in the indoor space, determine a subspace, S.sub.0, of the indoor space comprising the position, P.sub.0, wherein the subspace, S.sub.0, comprises at least one light source 130a of the plurality of light sources. The device 105 is further configured to set the intensity level, I.sub.0, of the at least one light source in the subspace, S.sub.0, to an intensity level value, and to measure a light intensity, I.sub.L0, in the position, P.sub.0. The device 105 may comprise light sensor(s), camera(s), interface(s), or the like, configured to measure the light intensity, I.sub.L0. The device 105 is further configured to, in an iterative manner from i=1, 2, . . . , to n, position itself in a position, P.sub.i, in the indoor space 120, determine a subspace, S.sub.i, of the indoor space 120 comprising the position, P.sub.i, wherein the subspace, S.sub.i, comprises at least one light source of the plurality of light sources, set the intensity level, I.sub.i, of the at least one light source in the subspace, S.sub.i, to a randomly selected intensity level value, measure a light intensity, I.sub.Li, in the position, P.sub.i. As exemplified in FIG. 2, the device 105 is configured to position itself in positions P.sub.1, P.sub.2, P.sub.3, define subspaces, S.sub.1, S.sub.2, S.sub.3, of the indoor space 120 comprising the respective position, P.sub.1, P.sub.2, P.sub.3, wherein the subspace, S.sub.1, S.sub.2, S.sub.3, comprise light source 130a, 130b, 130c, and 130d,e, respectively, set the intensity levels, I.sub.1-I.sub.4 of light sources 130a-e and measure the light intensities, I.sub.L1-I.sub.L3 in the positions, P.sub.1-P.sub.3. The device 105 is further configured to register a relation between the measured light intensity, I.sub.Li, in the position, P.sub.i, and the measured light intensity, I.sub.Li1, in the position, P.sub.i1, to a path register 150, and navigate in the indoor space 120 based on the path register 150. For example, the device 150 may hereby navigate (back) to the (initial/starting) position, P.sub.0, based on the path register 150. According to an embodiment, the device 105 may comprise the path register 150, and a processor which is communicatively coupled to the path register, whereby the device 105 is further configured to navigate in the indoor space 120 based on the path register 150. The device may comprise at least one interface 300 configured to set the intensity level, I.sub.i, of the at least one light source in the subspace, S.sub.i, to a selected intensity level value.

[0037] FIG. 3 schematically shows a device 105 for commissioning a lighting system. It will be appreciated that features of the device, and the operation thereof, is described in FIG. 2 and the associated text, and it is hereby referred to FIG. 2 and the text for an increased understanding. The device 105 comprises an interface 300 configured to set the intensity level, I.sub.i, of the at least one light source in the subspace, S.sub.i, to a randomly selected intensity level value. Here, the interface 300 comprises an infrared (IR) unit 300a, a Bluetooth Low Energy (BLE) unit 300b and a Zigbee unit 300c, but it should be understood that the device 105 may comprise one of more of these units as part of the interface 300. The device 105 further comprises a unit or element 310 comprising light sensor(s), camera(s), and/or interface(s) configured to measure the light intensity, I.sub.Li. It will be appreciated that the interface 300 and the unit or element 310 may be integrated with each other and/or connected to each other. The device 105 further comprises software 320 and an Ethernet unit 330 for the device's 105 operation and/or communication purposes. The device 105 further comprises the path register 150 comprising (storing) the measured light intensity, I.sub.Li, in the position, P.sub.i.

[0038] FIG. 4 schematically shows a commissioning arrangement 500 according to an exemplifying embodiment of the present invention. The commissioning arrangement 500 comprises a lighting system 110 arranged in an indoor space 120, wherein the lighting system comprises a plurality of light sources 130a-e, and the device 105 for commissioning of the lighting system 110 according to FIG. 2 and the associated text. The commissioning arrangement 500 further comprises a wireless communication system 510, wherein the device 105 is connected to the wireless communication system 510.

[0039] The person skilled in the art realizes that the present invention by no means is limited to the preferred embodiments described above. On the contrary, many modifications and variations are possible within the scope of the appended claims. For example, one or more of the light sources 130a-e, the device 105, etc., may have different shapes, dimensions and/or sizes than those depicted/described.