Method and device for light commissioning

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 0 , in the indoor space,

defining a subspace, S 0 , of the indoor space comprising the position, P 0 , wherein the subspace, S 0 , comprises at least one light source of the plurality of light sources,

setting the intensity level, I 0 , of the at least one light source in the subspace, S 0 , to an intensity level value,

measuring a light intensity, I L0 , in the position, P 0 ,

and in an iterative manner from i=1, 2, . . . , to n,

defining a position, P i , in the indoor space,

defining a subspace, S i , of the indoor space comprising the position, P i , wherein the subspace, S i , comprises at least another light source of the plurality of light sources,

setting the intensity level, I i , of the at least one light source in the subspace, S i , to an intensity level value,

measuring a light intensity, I Li , in the position, P i , and

registering and storing a spatial relation between

the measured light intensity, I Li , in the position, P i , and

the measured light intensity, I Li-1 , in the position, P i-1 ,

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 i , of the at least one light source comprises setting the intensity level, I i , of the at least one light source in the subspace, S 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 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 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 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 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 0 , in the indoor space,

determine a subspace, S 0 , of the indoor space comprising the position, P 0 , wherein the subspace, S 0 , comprises at least one light source of the plurality of light sources,

set the intensity level, I 0 , of the at least one light source in the subspace, S 0 , to an intensity level value,

measure a light intensity, I L0 , in the position, P 0 ,

and in an iterative manner from i=1, 2, . . . , to n,

position itself in a position, P i , in the indoor space,

determine a subspace, S i , of the indoor space comprising the position, P i , wherein the subspace, S i , comprises at least another light source of the plurality of light sources,

set the intensity level, I i , of the at least one light source in the subspace, S i , to an intensity level value,

measure a light intensity, I Li , in the position, P i , and

register and store a spatial relation between

the measured light intensity, I Li , in the position, P i , and

the measured light intensity, I Li-1 , in the position, P i-1 ,

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 i , of the at least one light source in the subspace, S i , to a randomly selected intensity level value.

8 . The device of claim 6 , further being configured to set the intensity level, I 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 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 Li .

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