UWB antenna solutions for increased accuracy for intent detection in access control systems
AssigneeSchlage Lock Company LLC
InventorsJoseph Land, Ryan C. Kincaid, David Brown, Molly Dixon
Life of this patent
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Abstract
An electronic lock according to an embodiment includes an exterior escutcheon on an unsecure side of the door, an interior escutcheon on a secure side of the door, a printed circuit board assembly (PCBA) positioned within the exterior escutcheon, and a plurality of ultra wideband (UWB) antennas secured to an exterior-facing side of the PCBA, wherein the plurality of UWB antennas comprises a first UWB antenna and a second UWB antenna configured to operate on a first UWB channel, and wherein the second UWB antenna is positioned no greater than one half of a wavelength of the first UWB channel from the first UWB antenna along a first axis.
Claims20
An electronic lock configured to be secured to a door having a secure side and an unsecure side, the electronic lock comprising:
- an exterior escutcheon on the unsecure side of the door;
- an interior escutcheon on the secure side of the door;
- a printed circuit board assembly (PCBA) positioned within the interior escutcheon;
- and
- a plurality of ultra wideband (UWB) antennas secured to an exterior-facing side of the PCBA, wherein the plurality of UWB antennas comprises a first UWB antenna and a second UWB antenna configured to operate on a first UWB channel, and wherein the second UWB antenna is positioned no greater than one half of a wavelength of the first UWB channel from the first UWB antenna along a first axis.
An access control device, comprising:
- a lock mechanism adapted to control access to a passageway;
- a printed circuit board assembly having a first side and a second side;
- a first ultra wideband antenna secured to the first side of the printed circuit board assembly and configured to operate on a first ultra wideband channel;
- a second ultra wideband antenna secured to the first side of the printed circuit board assembly no greater than one half of a wavelength of the first ultra wideband channel from the first ultra wideband antenna along a first axis and configured to operate on the first ultra wideband channel;
- an interior escutcheon adapted to be secured to a secure side of a door and to house the printed circuit board assembly;
- a processor;
- and
- a memory comprising a plurality of instructions stored thereon that, in response to execution by the processor, causes the access control device to determine whether a user intends to access the passageway based on signals received by the first ultra wideband antenna and the second ultra wideband antenna from a mobile device of the user.
An access control system, comprising:
- a mobile device;
- and
- an access control device including (i) a printed circuit board assembly having a first side and a second side, (ii) a first ultra wideband antenna secured to the first side of the printed circuit board assembly and configured to operate on a first ultra wideband channel, (iii) a second ultra wideband antenna secured to the first side of the printed circuit board and configured to operate on the first ultra wideband channel, (iv) an interior escutcheon adapted to be secured to a structure at a secure side of a passageway and to house the printed circuit board assembly, (v) a processor, and (vi) a memory comprising a plurality of instructions stored thereon that, in response to execution by the processor, causes the access control device to determine whether a user intends to access the passageway based on signals received by the first ultra wideband antenna and the second ultra wideband antenna from the mobile device.
Dependencies are inferred from the claim text.