A method for wirelessly coupling respective transducers of an automated motion platform and a sub-surface sensor node through a skin of a limited-access structure for the purpose of wireless power and data transfer. Coordinates of an as-designed position of the transducer of the sensor node in a local coordinate system of the limited-access structure are retrieved from a non-transitory tangible computer-readable storage medium. Then coordinates of a target position on an external surface of the skin of the limited-access structure are estimated. The target position is calculated to be aligned with the as-designed position of the transducer of the sensor node. The motion platform is moved under computer control so that the transducer onboard the motion platform moves toward the target position. Movement ceases when the transducer onboard the motion platform is at the target position. Then wave energy is transferred between the aligned transducers.

A method for wirelessly coupling respective transducers of an automated motion platform and a sub-surface sensor node through a skin of a limited-access structure for the purpose of wireless power and data transfer. Coordinates of an as-designed position of the transducer of the sensor node in a local coordinate system of the limited-access structure are retrieved from a non-transitory tangible computer-readable storage medium. Then coordinates of a target position on an external surface of the skin of the limited-access structure are estimated. The target position is calculated to be aligned with the as-designed position of the transducer of the sensor node. The motion platform is moved under computer control so that the transducer onboard the motion platform moves toward the target position. Movement ceases when the transducer onboard the motion platform is at the target position. Then wave energy is transferred between the aligned transducers.

An electronic device and method are disclosed. The electronic device includes: a battery, a wireless power transfer (WPT) coil, wireless power transceiver circuitry, a charging circuit, and a processor electrically connected to the wireless power transceiver circuitry and the charging circuit. The processor implements the method, including: receiving first detecting power from an external electronic device, determining whether a reception voltage generated by the received first detecting power is higher than a first predetermined voltage value, based on detecting that the reception voltage is higher than the first predetermined voltage value, supplying power from the battery to the wireless power transceiver circuitry, outputting via the WPT coil, foreign object detecting power based on the supplied power, and based on detecting an electrical change in the foreign object detecting power caused by presence of a foreign object, determining that an error has occurred.

An electronic device and method are disclosed. The electronic device includes: a battery, a wireless power transfer (WPT) coil, wireless power transceiver circuitry, a charging circuit, and a processor electrically connected to the wireless power transceiver circuitry and the charging circuit. The processor implements the method, including: receiving first detecting power from an external electronic device, determining whether a reception voltage generated by the received first detecting power is higher than a first predetermined voltage value, based on detecting that the reception voltage is higher than the first predetermined voltage value, supplying power from the battery to the wireless power transceiver circuitry, outputting via the WPT coil, foreign object detecting power based on the supplied power, and based on detecting an electrical change in the foreign object detecting power caused by presence of a foreign object, determining that an error has occurred.

According to an embodiment, a wireless power transmitting device may include a transmission coil, a power providing circuit, and at least one controller. The at least one controller may be configured to control the power providing circuit to apply first power to the transmission coil, identify a resonant frequency, based on a voltage measured at the transmission coil in response to the first power applied to the transmission coil, based on a difference between the identified resonant frequency and a reference frequency meeting a designated condition, identify that a foreign object is placed on a charging area of the wireless power transmitting device, and based on the difference between the identified resonant frequency and the reference frequency failing to meet the designated condition, control the power providing circuit to apply, to the transmission coil, at least one second power for performing communication with a wireless power receiving device.

According to an embodiment, a wireless power transmitting device may include a transmission coil, a power providing circuit, and at least one controller. The at least one controller may be configured to control the power providing circuit to apply first power to the transmission coil, identify a resonant frequency, based on a voltage measured at the transmission coil in response to the first power applied to the transmission coil, based on a difference between the identified resonant frequency and a reference frequency meeting a designated condition, identify that a foreign object is placed on a charging area of the wireless power transmitting device, and based on the difference between the identified resonant frequency and the reference frequency failing to meet the designated condition, control the power providing circuit to apply, to the transmission coil, at least one second power for performing communication with a wireless power receiving device.

Some embodiments include a radiographic imaging system, comprising: a radiographic imager, including: an imaging array; imager control logic configured to control the imaging array; a power system configured to supply power to at least the imaging array and the imager control logic; a wireless power receiver configured to receive energy wirelessly and provide at least part of that energy to the power system; and a wireless communication transmitter; and a charging mat, including: a wired power input; a wireless power transmitter configured to transmit energy wirelessly; and a wireless communication receiver; wherein the wireless power receiver, the wireless power transmitter, the wireless communication receiver, and the wireless communication transmitter are positioned such that the radiographic imager can be placed on the charging mat where, simultaneously, the wireless power receiver is aligned with the wireless power transmitter and the wireless communication receiver is aligned with the wireless communication transmitter.

Some embodiments include a radiographic imaging system, comprising: a radiographic imager, including: an imaging array; imager control logic configured to control the imaging array; a power system configured to supply power to at least the imaging array and the imager control logic; a wireless power receiver configured to receive energy wirelessly and provide at least part of that energy to the power system; and a wireless communication transmitter; and a charging mat, including: a wired power input; a wireless power transmitter configured to transmit energy wirelessly; and a wireless communication receiver; wherein the wireless power receiver, the wireless power transmitter, the wireless communication receiver, and the wireless communication transmitter are positioned such that the radiographic imager can be placed on the charging mat where, simultaneously, the wireless power receiver is aligned with the wireless power transmitter and the wireless communication receiver is aligned with the wireless communication transmitter.

A wireless power transfer system comprises at least one power receiver (105) for receiving a power transfer from the power transmitter (101) via a wireless inductive power transfer signal. Configurers (207, 306) of the power transmitter and receiver may perform a configuration process to determine a set of power transfer parameter values which are used in a first power transfer. The power transfer parameter values and a first identity for the first power receiver (105) are stored. After a detection of an absence of the power receiver by a first controller (211), a detector (213) may detect a presence of a candidate power receiver. If the candidate power receiver is detected within a given duration and has an identity matching the first identity, an initialization processor (215) initializes a second power transfer using the set of stored parameter values. Otherwise it discards the set of stored parameter values.

A wireless power transfer system comprises at least one power receiver (105) for receiving a power transfer from the power transmitter (101) via a wireless inductive power transfer signal. Configurers (207, 306) of the power transmitter and receiver may perform a configuration process to determine a set of power transfer parameter values which are used in a first power transfer. The power transfer parameter values and a first identity for the first power receiver (105) are stored. After a detection of an absence of the power receiver by a first controller (211), a detector (213) may detect a presence of a candidate power receiver. If the candidate power receiver is detected within a given duration and has an identity matching the first identity, an initialization processor (215) initializes a second power transfer using the set of stored parameter values. Otherwise it discards the set of stored parameter values.