Wireless power for door operator system accessories
AssigneeAssa Abloy Entrance Systems AB
InventorsDavid P. Bresson, Neil Edwards
Life of this patent
Estimating the term…
Abstract
A system comprising a sectional door, an opener operably coupled to the sectional door to move the sectional door via a roller assembly operably coupling the sectional door to a rail assembly to enable the sectional door to transition between an open state and a closed state via the roller assembly carrying the sectional door in the rail assembly, and a plurality of accessories associated with monitoring or movement of the sectional door. The accessories may include at least one powered device having a rechargeable battery and a radio frequency to direct current (RF-DC) converter operably coupled to the rechargeable battery to charge the rechargeable battery based on conversion of energy harvested RF transmissions into DC power.
Claims15
A door operator system comprising:
- a sectional door;
- an opener operably coupled to the sectional door to move the sectional door via a roller assembly operably coupling the sectional door to a rail assembly to enable the sectional door to transition between an open state and a closed state via the roller assembly carrying the sectional door in the rail assembly;
- and
- a plurality of accessories associated with monitoring or movement of the sectional door,
- wherein the accessories include at least one powered device having a rechargeable battery and a radio frequency to direct current (RF-DC) converter operably coupled to the rechargeable battery to charge the rechargeable battery based on conversion of energy harvested RF transmissions into DC power,
- wherein the RF-DC converter includes an antenna assembly operable under control of an antenna controller,
- wherein the antenna assembly is adaptive in frequency or orientation through electronic modification via the antenna controller,
- wherein the antenna controller comprises processing circuitry to define a frequency at which the antenna assembly is tuned for reception, and
- wherein a direction or orientation of the antenna assembly is electronically steered via the processing circuitry.
A radio frequency to direct current (RF-DC) converter for an accessory of a door operator system comprising a sectional door and an opener operably coupled to the sectional door to move the sectional door, the RF-DC converter comprising:
- an antenna to receive RF transmissions;
- and
- an alternating current to direct current (AC-DC) converter operably coupled to a rechargeable battery of the accessory to charge the rechargeable battery based on conversion of the received RF transmissions into DC power,
- wherein the antenna and the AC-DC converter are located on a door panel of the sectional door,
- wherein the RF-DC converter further comprising an antenna controller,
- wherein the antenna comprises an antenna assembly operable under control of the antenna controller,
- wherein the antenna assembly is adaptive in frequency or orientation through electronic modification via the antenna controller,
- wherein the antenna controller comprises processing circuitry to define a frequency at which the antenna assembly is tuned for reception, and
- wherein a direction or orientation of the antenna assembly is electronically steered via the processing circuitry.
Dependencies are inferred from the claim text.