Updating firmware using a NFC sticker
A driver device for driving at least one lighting device comprises a driving circuit, a control circuit configured to control the driving circuit based on a firmware stored in a memory of the driver device, and a transceiver configured to perform near field communication via an antenna. The control circuit is configured to control the transceiver to detect presence of a passive near field communication tag within range of the antenna. Preferably, the driver device includes the control circuit is configured to control the transceiver to acquire a data file from the detected passive near field communication tag, and to perform at least one of updating the firmware or controlling the light driving circuit based on the acquired data file.
1 . A system comprising a driver device for driving at least one lighting device ( 4 ) and a passive near field communication tag ( 3 ), the driver device comprising
a driving circuit ( 5 ) having a housing,
a control circuit ( 6 ) contained in the housing configured to control the driving circuit ( 5 ) based on a firmware stored in a memory ( 7 ) contained in the housing, and
a driver transceiver ( 8 ) contained in the housing configured to perform near field communication via a driver antenna ( 9 ), and the control circuit ( 6 ) is configured to control the driver transceiver ( 8 ) to detect a presence of the near field communication tag ( 3 ) within range of the driver antenna ( 9 )
wherein
the passive near field communication tag ( 3 ) is contained in a sticker device comprising means configured to display visually a firmware version identifier, wherein the passive near field communication tag ( 3 ) contained in a sticker device comprises a data file that corresponds to the version identifier,
a tag antenna ( 14 ) which together with the passive near field communication tag forms a sticker transceiver that is configured to perform near field communication and to transmit the stored data file in response to a received transmission request, and
releasable adhesive ( 15 ) adapted to attach the sticker device to a the housing ( 12 ) of the driver device ( 2 ),
wherein the control circuit ( 6 ) is configured to control the driver transceiver ( 8 ) to acquire a data file from the detected passive near field communication tag ( 3 ) contained in the sticker device, to perform at least one of updating the firmware or controlling the driving circuit ( 5 ) based on the acquired data file, and is further configured to control the light driving circuit ( 5 ) to stop providing a load current to the lighting device ( 4 ) in case the driver transceiver ( 8 ) does not detect the presence of a sticker transceiver within range of the driver antenna ( 9 ).
2 . The system according to claim 1 , wherein
the control circuit ( 6 ) is configured to control the driver transceiver ( 8 ) to read a version identifier corresponding to the data file from the detected passive near field communication tag ( 3 ) contained in a the sticker device, and to compare the read version identifier with a version identifier of the firmware stored in the memory ( 7 ), and,
in case the firmware version identifier differs from the stored version identifier, to update the firmware based on the acquired data file.
3 . The system according to claim 1 , wherein
the control circuit ( 6 ) is configured to control the driver transceiver ( 8 ) to detect presence of the passive near field communication tag ( 3 ) contained in a sticker device during a power-up process of the driver device.
4 . The system according to claim 2 , wherein
the control circuit ( 6 ) is configured to power down the driver transceiver ( 8 ) in case the read version identifier matches with the stored version identifier of the firmware stored in the memory ( 7 ).
5 . The system according to claim 1 , wherein
the driver transceiver ( 6 ) is configured to generate a magnetic field for powering a reading process for reading the data file from the passive near field communication tag ( 3 ) contained in a sticker device.
6 . The system according to claim 1 , wherein
the driver device further comprises a visual output means ( 11 ), in particular at least one LED, and the control circuit ( 6 ) is configured to control the visual output means ( 11 ) to emit a predefined light pattern while the updating the firmware.
7 . The system according to claim 1 , wherein
a visual marker ( 20 ) is arranged externally on the housing ( 12 ) for attaching the sticker device and the near field communication tag ( 30 ) in a predetermined position relative to the visual marker ( 20 ) and within the range of the driver antenna ( 9 ).
8 . The system according to claim 1 , wherein
the driver device ( 2 ) arranges the near field communication tag ( 3 ) contained in a sticker device on an openable housing ( 12 ) of the driver device ( 2 ), wherein opening the openable housing ( 12 ) removes the near field communication tag ( 3 ) contained in a sticker device beyond the range of the driver antenna ( 9 ) or destroys the near field communication tag ( 3 ) contained in a sticker device.
9 . A method for updating firmware of a driver device ( 2 ) for driving at least one lighting device ( 4 ),
wherein the driver device comprises a housing, a light driving circuit ( 5 ), a control circuit ( 6 ) configured to control the driving circuit ( 5 ) based on firmware stored in a memory ( 7 ) of the driver device ( 2 ), and
a driver transceiver ( 8 ) configured to perform near field communication via an a driver antenna ( 9 ), the light driving circuit ( 5 ) and the control circuit ( 6 ) being contained in the housing and the driver antenna being contained in or adjacent the housing, the method comprising the steps of:
placing a sticker device on the housing, the sticker device having a tag antenna and a passive near field communication tag containing data with firmware and a version identifier;
controlling, by the control circuit ( 6 ), the driver transceiver ( 8 ) to detect the presence of the passive near field communication tag ( 3 ) contained in the sticker device within range of the driver antenna ( 9 ) during a power-up process of the driver device, and
controlling, by the control circuit ( 6 ), the driver transceiver ( 8 ) to acquire the data with firmware and a version identifier from the detected passive near field communication tag ( 3 ) in case the transceiver ( 8 ) detects presence of the near field communication tag ( 3 ) contained in the sticker device,
determining whether the acquired version identifier matches a version identifier of the firmware stored in the memory of the driver device;
if the acquired version identifier does not match the version identifier of the firmware stored in the memory of the driver device, performing, by the control circuit ( 6 ), updating the firmware based on the firmware in the acquired data and restarting the driver device, and
if the acquired version identifier does match the version identifier of the firmware stored in the memory of the driver device, resuming driver device operation, and powering down the driver transceiver ( 8 ).
10 . A system comprising an emergency driver device for driving at least one lighting device ( 4 ) and a replacement rechargeable battery, the driver device comprising:
a driving circuit ( 5 ) having a housing, a switched-mode power supply ( 5 ) and a first rechargeable battery, the first rechargeable battery having a first type of battery chemistry;
a control circuit ( 6 ) contained in the housing configured to control the driving circuit ( 5 ) based on a firmware stored in a memory ( 7 ) contained in the housing, wherein the firmware being configured to control a charging current from the switched-mode power supply ( 5 ) to charge the first rechargeable battery ( 10 ) with the first type of battery chemistry in accordance with a first charging process;
a driver transceiver ( 8 ) contained in the housing configured to perform near field communication via a driver antenna ( 9 ), the control circuit ( 6 ) being configured to control the driver transceiver ( 8 ) to detect a presence of the near field communication tag ( 3 ) within range of the driver antenna ( 9 ), wherein, if detected, the control circuit ( 6 ) is configured to control the driver transceiver ( 8 ) to acquire a data file from the detected passive near field communication tag ( 3 );
a replacement rechargeable battery having a second type of battery chemistry; and
a sticker device including a passive near field communication tag, a sticker antenna, and releasable adhesive adapted to attach the sticker device to the housing ( 12 ) of the driver device ( 2 ), said passive near field communication tag containing a stored data file with firmware to update changes in the charging process to accommodate the second type of battery chemistry which is used by the replacement rechargeable battery, wherein the sticker device is configured to perform passive near field communication and to transmit the stored data file in response to a received transmission request.