Abstract: The present invention relates to an apparatus and a method for supporting heterogeneous communication in a wireless power transmission system. The present disclosure discloses a wireless power receiver comprising: a power pickup unit configured to receive, from a wireless power transmitter, a digital ping signal or wireless power by magnetically coupling with the wireless power transmitter at an operating frequency, and to convert an alternating current signal generated by the wireless power into a direct current signal; a communication/control unit configured to receive the direct current signal from the power pickup unit, and to perform at least one of an in-band communication using the operating frequency and an out-band communication using a frequency other than the operating frequency; and a load configured to receive the direct current signal from the power pickup unit.

Abstract: The present invention relates to an apparatus and a method for performing power calibration in a wireless power transmission system. The present specification provides a wireless power transmission apparatus comprising: a power conversion unit configured to transmit, in a power transfer phase, wireless power generated on the basis of magnetic coupling to a wireless power receiving device; and a communication/control unit configured to perform an initial calibration for a power parameter prior to the power transfer phase, receive a first received power packet from the wireless power receiving device indicating the power received by the wireless power receiving device during the power transfer phase, and detect foreign matter by using the received power and a first power loss determined on the basis of the initial calibration.

Abstract: The present disclosure relates to a device and method for controlling transmission of power in a wireless power transmitting system. The present specification discloses a wireless power transmitting method comprising the steps of: performing a digital ping on each of a plurality of coil combinations formed from a plurality of primary coils; receiving a signal intensity packet of each of the coil combinations from the wireless power receiving device; and forming the magnetic coupling by operating a coil combination selected on the basis of the signal intensity packet, and transmitting wireless power to the wireless power receiving device on the basis of the magnetic coupling. Therefore, an optimal multi-coil can be rapidly selected according to the location of the wireless power receiving device.

Abstract: A method for performing authentication of a target device in a wireless power transmission system, includes receiving, from the target device, a first packet including indication information related to whether or not the target device supports an authentication function; in case the target device supports the authentication function, transmitting an authentication request message to the target device; and receiving, from the target device, an authentication response message including a certificate related to wireless charging as a response to the authentication request message, wherein a format of the certificate includes a certificate type that informs whether the certificate is one of a plurality of certificates including a root certificate, an intermediate certificate and a final certificate for a wireless power transmitter (PTX).

Abstract: Disclosed are a wireless power transfer apparatus and a method of controlling the same. The wireless power transfer apparatus in one example can include a power transmission circuit including a plurality of coils and configured to transfer power through the plurality of coils, and a controller, wherein the controller is configured to calculate a data value of a coil with respect to each of the plurality of coils, and determine a position of an object in a charge region corresponding to the plurality of coils in a charge region based on a comparison result obtained by comparing the data value calculated for each of the plurality of coils.

Abstract: A method for performing authentication of a target device in a wireless power transmission system, includes receiving, from the target device, a first packet including indication information related to whether or not the target device supports an authentication function; in case the target device supports the authentication function, transmitting an authentication request message to the target device; and receiving, from the target device, an authentication response message including a certificate related to wireless charging as a response to the authentication request message, wherein a format of the certificate includes a certificate type that informs whether the certificate is one of a plurality of certificates including a root certificate, an intermediate certificate and a final certificate for a wireless power transmitter (PTX).

Abstract: The present invention relates to a multi-coil based wireless power transmission device and method. Disclosed in the present specification is a wireless power transmission device comprising: a primary coil array forming a magnetic coupling with a secondary coil, which is provided in a wireless power reception device, so as to transmit wireless power to the wireless power reception device; a plurality of inverters connected to a plurality of primary coils one-to-one so as to selectively drive each of the plurality of primary coils; a communication and control unit, which controls the plurality of inverters and communication with the wireless power reception device such that at least one primary coil is driven on the basis of the degree of magnetic coupling formed by each primary coil and the secondary coil, thereby determining output, which can be provided by the primary coil array, within a value obtained by summing all the maximum outputs individually set to the respective primary coils.

Abstract: The present invention relates to a wireless power transmitting device. The wireless power transmitting device comprises a transmitter coil section with a plurality of partially overlapping transmitter coils; a fan for cooling heat generated by the transmitter coil section; and a controller for sending out a detection signal through the transmitter coil section, calculating the number of operating coils based on the strength of a response signal to the detection signal, and controlling the fan based on the calculated number of operating coils. Accordingly, heat generated by the transmitter coils can be reduced more efficiently.

Abstract: The present invention relates to a wireless power transfer apparatus. The wireless power transfer apparatus includes: a resonant circuit unit including a plurality of coils and a plurality of capacitor elements respectively connected to the plurality of coils; and a controller configured to calculate individual quality factor of each of the plurality of coils and a total quality factor of the plurality of coils, at a resonant frequency, and calculate whether foreign matter exists on a charging surface, based on the total quality factor and the individual quality factor, at the resonance frequency. Accordingly, foreign matter on the charging surface can be detected more easily.

Abstract: A wireless power transmission apparatus can include a resonant circuit including a plurality of coils and a plurality of capacitor elements respectively connected to the plurality of coils; a first sensor configured to sense a change in inductance of each of the plurality of coils; a second sensor configured to sense a change in a quality factor of each of the plurality of coils; and a controller configured to calculate feature values based on an inductance variation and a quality factor variation for detecting a foreign object, and determine the foreign object is present on a charging surface of the wireless power transmission apparatus based on whether a feature value combination selected from among the feature values falls within a reference region on a coordinate plane formed by an intersection of a first axis and a second axis, in which the first axis is based on inductance variation and the second axis is based on quality factor variation.

Abstract: A power relay device includes a power receiver configured to wirelessly receive power of a first class when coupled with a wireless power transmission device, a first power converter configured to convert power supplied from the power receiver into a form appropriate for a first mobile terminal, a second power converter configured to receive power from the first power converter and to convert the power into power of a second class, and a power transmitter configured to wirelessly transmit the power of the second class to a second mobile terminal.

Abstract: Provided is a surveillance method. The surveillance method includes detecting an event occurring region from an image obtained by using a first image sensor; and, when the event occurring region satisfies a preset condition, moving an identification unit on which a second image sensor is mounted in a direction corresponding to the event occurring region.

Abstract: Disclosed is a method for wirelessly transmitting, by a power transmitter including a primary coil, power. The method may include detecting the placement of objects on a surface of an interface included in the power transmitter and selecting a power receiver which belongs to the detected objects and to which power is to be transmitted, performing digital ping for applying a power signal for detecting and identifying the power receiver to the power receiver and receiving a response to the digital ping from the power receiver, obtaining information about the configuration of the power receiver and establishing a power transfer contract with the power receiver using the configuration information, and wirelessly transmitting the power to the power receiver based on the established power transfer contract.

Abstract: The present disclosure provides a device for controlling power supply to a heating, ventilating, and air-conditioning (HVAC) system for a building based on a target temperature. The device comprises a memory and a processor connected to the memory, wherein the processor is configured for: generating a zone-based temperature prediction model by training an artificial neural network based on a plurality of first training data; and determining a sequence of optimal to-be-supplied powers at one or more time-points after a current time-point, wherein the sequence of optimal to-be-supplied powers allows minimizing a value of a loss function associated with a difference between a sequence of predetermined target temperatures and a sequence of predicted temperatures predicted based on the zone-based temperature prediction model.

Abstract: Provided is a surveillance method. The surveillance method includes detecting an event occurring region from an image obtained by using a first image sensor; and, when the event occurring region satisfies a preset condition, moving an identification unit on which a second image sensor is mounted in a direction corresponding to the event occurring region.

Abstract: Disclosed is a method for wirelessly transmitting, by a power transmitter including a primary coil, power. The method may include detecting the placement of objects on a surface of an interface included in the power transmitter and selecting a power receiver which belongs to the detected objects and to which power is to be transmitted, performing digital ping for applying a power signal for detecting and identifying the power receiver to the power receiver and receiving a response to the digital ping from the power receiver, obtaining information about the configuration of the power receiver and establishing a power transfer contract with the power receiver using the configuration information, and wirelessly transmitting the power to the power receiver based on the established power transfer contract.

Abstract: A method and apparatus are disclosed for remotely managing network elements in a distributed computing system. The distributed computing system utilizes a software entity, such as an operating system, to manage the location of, and communication with, distributed resources in the distributed computing system. A network manager and/or SNMP agents can interact with distributed elements to obtain desired management information independent of the location of the distributed elements. Thus, master agents can communicate with managed network nodes without adhering to the intricate requirements of the SMUX or DPI protocols. SNMP MIBs are implemented as hierarchical file systems, comprised of a tree of file-like objects, that may be accessed through a namespace. The SNMP MIB namespace allows the network manager, master agent and SNMP agents to access each resource, including SNMP MIBs, in a uniform, file-oriented manner.