System and method for operating at least one led unit of a lighting grid comprising a plurality of led units

Method for operating at least one LED unit of a lighting grid comprising a plurality of LED units, comprising the steps of:

• emitting light with the LED unit including a VLC signal to transmit data via the VLC signal,
• capturing the light emitted by the LED unit with light capturing modules of a plurality of user equipment devices,
• decoding with each user equipment device the VLC signal transmitted by the LED unit from the light captured by the light capturing module of the particular user equipment device,
• determining with each user equipment device for the LED unit a VLC quality parameter which represents the quality of the transmission of data via the VLC signal transmitted by said LED unit,
• determining a VLC control parameter for the LED unit, based on said VLC quality parameters,
• adjusting the VLC signal transmitted by the LED unit based on the VLC control parameter.

Mobile application for a mobile communication device for use in a lighting grid comprising a plurality of LED units, wherein the mobile application is configured to:

• cause the mobile communication device to capture a light emitted by at least one of the LED units with a light capturing module of the mobile communication device,
• decode code words transmitted by the at least one LED unit from which the emitted light is captured by the light capturing module,
• provide information to a user on a display of the mobile communication device, wherein said information is related to an environment wherein the lighting grid is arranged, and wherein said information is based on a determined location of the mobile communication device, which determined location is determined based on the decoded code words,
• determine for the at least one LED unit a VLC quality parameter which represents the quality of the transmission of data via the VLC signal transmitted by the at least one LED unit, and
• cause the mobile communication device to transmit the VLC quality parameter via an output terminal of the mobile communication device.

System, comprising

• a lighting grid comprising
• a plurality of LED units which are each adapted to emit light in an area wherein a plurality of user equipment devices are present, wherein the light emitted by each LED unit includes a VLC signal, wherein each LED unit is adapted to transmit data to the plurality of user equipment devices via the VLC signal,
• a controller, which comprises
• a communication terminal for receiving light intensity parameters which each represent the intensity of the light emitted by a LED unit of the lighting grid and/or light colour parameters which each represent the colour of the light emitted by a LED unit of the lighting grid, which light intensity parameters and/or light colour parameters are transmitted by the plurality of user equipment devices,
• a processing unit, which is configured to
• compare each light intensity parameter with an intensity reference value and/or each light colour parameter with an colour reference value, and
• determine an intensity control parameter for each LED unit for which a light intensity parameter has been received and/or colour control parameter for each LED unit light colour parameter has been received, based on said comparison,
• wherein the controller is configured to adjust the light emitted by the LED units based on the corresponding intensity control parameter and/or colour control parameter.

Method for operating at least one LED unit of a lighting grid comprising a plurality of LED units, comprising the steps of:

• emitting light with the LED unit including a VLC signal to transmit data via the VLC signal, wherein said data optionally comprises at least a code word by which the particular LED unit can be identified,
• capturing the light emitted by the LED unit with light capturing modules of each of a plurality of user equipment devices,
• decoding with each user equipment device the VLC signal transmitted by the LED unit from the light captured with the light capturing module of the respective user equipment device,
• determining with each user equipment device a light intensity parameter and/or light colour parameter for the LED unit which represents the intensity and/or the colour respectively of the light transmitted by said LED unit,
• assigning the light intensity parameter and/or light colour parameter to the LED unit,
• comparing the light intensity parameter with an intensity reference value and/or the light colour parameter with a colour reference value
• determining an intensity control parameter and/or a colour control parameter for the LED unit, based on said comparison,
• adjusting the light emitted by the LED unit based on the intensity control parameters and/or colour control parameters.

Mobile application for a mobile communication device for use in a lighting grid comprising a plurality of LED units, wherein the mobile application is configured to:

• cause the mobile communication device to capture a light emitted by at least one of the LED units with a light capturing module of the mobile communication device,
• decode code words transmitted by the at least one LED unit for which the emitted light is captured by the light capturing module,
• provide information to a user on a display of the mobile communication device, wherein said information is related to an environment wherein the lighting grid is arranged, and wherein said information is based on a determined location of the mobile communication device, which determined location is determined based on the decoded code words,
• determine for the at least one LED unit the light intensity parameter and/or the light colour parameter, and
• cause the mobile communication device to transmit the light intensity parameter and/or the light colour parameter via an output terminal of the mobile communication device.