Methods and apparatus utilizing time division access of multiple radar modules in living object detection for wireless power transfer applications
First Claim
1. An apparatus for detecting an object in a detection area of a wireless power transfer system having a base pad with first and second sides and configured to provide an amount of power to wirelessly charge a chargeable energy storage device, the apparatus comprising:
- a plurality of radar transceivers, each of the plurality of radar transceivers comprising a transmit antenna and a receive antenna; and
a processor configured to;
group the plurality of radar transceivers into pairs of radar transceivers,instruct each of the pairs of radar transceivers to transmit radar signals during a corresponding time slot of a plurality of time slots, wherein for each pair of radar transceivers, a first radar transceiver is integrated with the first side of the base pad and a second radar transceiver is integrated with the second side of the base pad and wherein the first side is opposite the second side on the base pad,instruct each of the pairs of radar transceivers to receive the radar signals during the corresponding time slot of the plurality of time slots,detect the object in the detection area based on at least some of the radar signals received by the pairs of radar transceivers,reduce the amount of power provided by the wireless power transfer system in response to detecting the object in the detection area; and
disable a receiving capability of each of the pairs of radar transceivers outside of the corresponding time slot.
2 Assignments
0 Petitions
Accused Products
Abstract
Methods and apparatus utilizing time division access of multiple radar transceivers in living object detection for wireless power transfer applications are provided. In one aspect, an apparatus for detecting an object in a detection area of a wireless power transfer system is provided. The apparatus comprises a plurality of radar transceivers. The apparatus comprises a processor configured to group the plurality of radar transceivers into pairs of radar transceivers. The processor is configured to instruct each of the pairs of radar transceivers to transmit radar signals during a corresponding time slot of a plurality of time slots. The processor is configured to instruct each of the pairs of radar transceivers to receive the radar signals during the corresponding time slot of the plurality of time slots. The processor is configured to detect the object in the detection area based on at least some of the radar signals received by each of the pairs of radar transceivers.
22 Citations
23 Claims
-
1. An apparatus for detecting an object in a detection area of a wireless power transfer system having a base pad with first and second sides and configured to provide an amount of power to wirelessly charge a chargeable energy storage device, the apparatus comprising:
-
a plurality of radar transceivers, each of the plurality of radar transceivers comprising a transmit antenna and a receive antenna; and a processor configured to; group the plurality of radar transceivers into pairs of radar transceivers, instruct each of the pairs of radar transceivers to transmit radar signals during a corresponding time slot of a plurality of time slots, wherein for each pair of radar transceivers, a first radar transceiver is integrated with the first side of the base pad and a second radar transceiver is integrated with the second side of the base pad and wherein the first side is opposite the second side on the base pad, instruct each of the pairs of radar transceivers to receive the radar signals during the corresponding time slot of the plurality of time slots, detect the object in the detection area based on at least some of the radar signals received by the pairs of radar transceivers, reduce the amount of power provided by the wireless power transfer system in response to detecting the object in the detection area; and disable a receiving capability of each of the pairs of radar transceivers outside of the corresponding time slot. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A method for detecting an object in a detection area of a wireless power transfer system having a base pad with first and second sides and configured to provide an amount of power to wirelessly charge a chargeable energy storage device, the method comprising:
-
grouping, by a processor, a plurality of radar transceivers into pairs of radar transceivers, wherein each of the plurality of radar transceivers comprises a transmit antenna and a receive antenna and wherein for each pair of radar transceivers, a first radar transceiver is integrated with the first side of the base pad and a second radar transceiver is integrated with the second side of the base pad, the first side being opposite the second side on the base pad; for each of the pairs of radar transceivers; transmitting radar signals during a corresponding time slot, and receiving the radar signals during the corresponding time slot; detecting, by the processor, the object in the detection area based on at least some of the radar signals received by the pairs of radar transceivers; reducing the amount of power provided by the wireless power transfer system in response to detecting the object in the detection area; and disabling a receiving capability of each of the pairs of radar transceivers outside of the corresponding time slot. - View Dependent Claims (8, 9, 10, 11, 12)
-
-
13. A non-transitory, computer-readable medium comprising code that, when executed, causes an apparatus for detecting an object in a detection area of a wireless power transfer system having a base pad with first and second sides and configured to provide an amount of power to wirelessly charge a chargeable energy storage device to:
-
group a plurality of radar transceivers into pairs of radar transceivers, wherein each of the plurality of radar transceivers comprises a transmit antenna and a receive antenna and wherein for each pair of radar transceivers, a first radar transceiver is integrated with the first side of the base pad and a second radar transceiver is integrated with the second side of the base pad, the first side being opposite the second side on the base pad; for each of the pairs of radar transceivers; transmit radar signals during a corresponding time slot, and receive the radar signals during the corresponding time slot; detect the object in the detection area based on at least some of the radar signals received by each of the pairs of radar transceivers; reduce the amount of power provided by the wireless power transfer system in response to detecting the object in the detection area; and disable a receiving capability of each of the pairs of radar transceivers outside of the corresponding time slot. - View Dependent Claims (14, 15, 16, 17, 18)
-
-
19. An apparatus for detecting an object in a detection area of a wireless power transfer system having a base pad with first and second sides and configured to provide an amount of power to wirelessly charge a chargeable energy storage device, the apparatus comprising:
-
a plurality of means for transmitting and receiving radar signals, each of the plurality of means for transmitting and receiving radar signals comprising a means for transmitting and a means for receiving; means for grouping the plurality of means for transmitting and receiving radar signals into pairs, means for instructing each of the pairs to transmit radar signals during a corresponding time slot of a plurality of time slots, wherein for each pair of means for transmitting and receiving radar signals, a first means for transmitting and receiving radar signals is integrated with the first side of the base pad and a second means for transmitting and receiving radar signals is integrated with the second side of the base pad and wherein the first side is opposite the second side on the base pad; means for instructing each of the pairs to receive the radar signals during the corresponding time slot of the plurality of time slots; means for detecting the object in the detection area based on at least some of the radar signals received by each of the pairs; means for reducing the amount of power provided by the wireless power transfer system in response to detecting the object in the detection area; and means for disabling a receiving capability of each of the pairs outside of the corresponding time slot. - View Dependent Claims (20, 21, 22, 23)
-
Specification