The present disclosure relates to a method, an apparatus, and a computer program for a connectionless asset tracking service in a wireless communication system, and a recording medium thereof. A method for a connectionless asset tracking service in a wireless communication system according to an embodiment of the present disclosure may comprise the steps in which a first device: receives an advertising packet from a second device; determines whether at least one advertising data structure (AD structure) included in the advertising packet is an AD structure related to a connectionless asset tracking service; and on the basis of the AD structure related to the connectionless asset tracking service, determines the location of the second device, wherein an AD type field of the AD structure related to the connectionless asset tracking service includes a value indicating a connectionless asset tracking service.

An example method is provided for detecting and classifying foreign objects, performed at a computer system having one or more processors and memory storing one or more programs configured for execution by the one or more processors. The method includes obtaining a plurality of electrical measurements while a wireless-power-transmitting antenna is transmitting different power beacons. The method also includes forming a feature vector according to the plurality of electrical measurements. The method further includes detecting a presence of one or more foreign objects prior to transmitting wireless power to one or more wireless power receivers by inputting the feature vector to trained one or more classifiers, wherein each classifier is a machine-learning model trained to detect foreign objects distinct from the one or more wireless power receivers.

An example method is provided for detecting and classifying foreign objects, performed at a computer system having one or more processors and memory storing one or more programs configured for execution by the one or more processors. The method includes obtaining a plurality of electrical measurements while a wireless-power-transmitting antenna is transmitting different power beacons. The method also includes forming a feature vector according to the plurality of electrical measurements. The method further includes detecting a presence of one or more foreign objects prior to transmitting wireless power to one or more wireless power receivers by inputting the feature vector to trained one or more classifiers, wherein each classifier is a machine-learning model trained to detect foreign objects distinct from the one or more wireless power receivers.

A wireless power transmission apparatus according to an embodiment of the present specification transmits wireless power to a wireless power reception apparatus and comprises: a power conversion circuit that transmits the wireless power to the wireless power reception apparatus; and a communication/control circuit that communicates with the wireless power reception apparatus and controls the wireless power. In a power transfer phase for transmitting the wireless power to the wireless power reception apparatus, the communication/control circuit may receive, from the wireless power reception apparatus, a data packet including information about a slot time for performing foreign object detection and perform the foreign object detection during the slot time.

A substrate rotating apparatus may include a spin chuck supporting a substrate and a stage rotating the spin chuck about an axis parallel to a first direction. The spin chuck may include a first magnetic element and a substrate supporting member thereon. The stage may include a stage housing, a rotating part rotating about the axis, an inner control unit controlling rotation of the rotating part, a power supplying part supplying a power to the rotating part, and a wireless communication part receiving a control signal from an outside and transmitting the control signal to the inner control unit. The rotating part may include a second magnetic element spaced apart from the first magnetic element and a rotation driver rotating the second magnetic element. The rotating part, the inner control unit, the power supplying part, and the wireless communication part may be placed in the stage housing.

A substrate rotating apparatus may include a spin chuck supporting a substrate and a stage rotating the spin chuck about an axis parallel to a first direction. The spin chuck may include a first magnetic element and a substrate supporting member thereon. The stage may include a stage housing, a rotating part rotating about the axis, an inner control unit controlling rotation of the rotating part, a power supplying part supplying a power to the rotating part, and a wireless communication part receiving a control signal from an outside and transmitting the control signal to the inner control unit. The rotating part may include a second magnetic element spaced apart from the first magnetic element and a rotation driver rotating the second magnetic element. The rotating part, the inner control unit, the power supplying part, and the wireless communication part may be placed in the stage housing.

A dual-use electromagnetic beam system may be used as a remote power delivery system when not needed as an offensive weapon. For example, a system for disabling or destroying uncooperative or enemy assets such as UAVs or ground vehicles may be used during “down time” to provide power to assets that are separated from prime power sources by distance or by logistics.

A switch device includes: a receiving conversion component, configured to receive a wireless signal and convert the received wireless signal into a power supply signal; a first power component, connected to the receiving conversion component, and configured to store electrical energy based on the power supply signal; a control component, connected to the first power component, and configured to enter a working state based on the electrical energy supplied by the first power component, and generate a control signal in the working state; and a first switch component, connected to the control component, and configured to change to be in an on or off state according to the control signal, wherein the first switch component is arranged on a power supply loop of a controlled device to which a second power component is configured to supply electrical energy in the on state.

A mobile charging station generating electricity by an Enclosed Photovoltaic Device and electromagnetic energy receiving unit, mounted on top of an Electric Vehicle Platform or chassis, housing a power storage system, inverters, power outlets and wireless power transmitters to provide electricity to the electric vehicle platform and other electric vehicles. This mobile charging station is configured to be autonomously driven to any location where vehicles can be recharged at any time.

A tissue marking system includes a tissue marking beacon and a near-infrared (NIR) camera configured to detect emission of pulsatile NIR light from the tissue marking beacon. The tissue marking beacon is suitable for being injected into a tumor to mark a position and depth of the tumor for treatment. NIR light is emitted from a light-emitting diode (LED) positioned on the tissue marking beacon and is detected by the NIR camera. A pulsatile emission of NIR light from the LED is controlled to by synchronized with a data capture rate and/or detector exposure (shutter) of the NIR camera.