A system for wirelessly charging at least one device is disclosed. The device has a photovoltaic cell for converting incident light into electrical energy. The system also has a supply unit arranged to transmit a laser beam to the photovoltaic cell of the device. The supply unit is arranged to transmit the laser beam with a first divergence angle during a first mode and a second, narrower, divergence angle during a second mode following the first mode. The supply unit is arranged to change from the first mode to the second mode based on information relating to the location of the device.

Systems and methods to maintain a fleet of aerial vehicles may include a maintenance system, a charging power source, and a control system. For example, the maintenance system may include a plurality of workstations to perform maintenance tasks, a charging rail that connects the workstations with the charging power source, and a plurality of platforms that move along the charging rail. The control system may instruct a platform to receive an aerial vehicle, couple the aerial vehicle to the charging rail, move the aerial vehicle among the workstations, and charge a battery of the aerial vehicle via the charging rail during movement and/or performance of various maintenance tasks.

Various implementations described herein relate to a system including multiple nodes. Each node is one of a storage node, a compute node, or a computer-and-storage node. Each node includes a Bluetooth® connector configured to communicate over a Bluetooth® mesh network.

Various implementations described herein relate to a system including multiple nodes. Each node is one of a storage node, a compute node, or a computer-and-storage node. Each node includes a Bluetooth® connector configured to communicate over a Bluetooth® mesh network.

Various embodiments of the disclosure relate to an electronic device and method that increases the efficiency of power supplying of a wireless charging circuit. The processor may perform a wireless power sharing function, may identify the type of an external device aligned with a coil of the electronic device, may supply a designated first power to a wireless charging integrated circuit of the electronic device in the case in which the external device is a first device, the first device being a device that requests a voltage higher than a reference voltage level, may control the wireless charging IC to generate a current of the coil based on the first power, may activate a path that directly connects a battery of the electronic device and the wireless charging IC, and may supply a second power lower than the first power to the wireless charging IC via the path.

Various implementations described herein relate to a system including multiple nodes. Each node is one of a storage node, a compute node, or a computer-and-storage node. Each node includes a Bluetooth® connector configured to communicate over a Bluetooth® mesh network.

A power source apparatus includes a switching control circuit configured to output a switching signal to switch a power source supplying power to each of a plurality of loads, and a reset control circuit having a plurality of output terminals outputting reset signals that reset the plurality of loads in response to the switching signal.

Systems and methods to maintain a fleet of aerial vehicles may include a maintenance system, a charging power source, and a control system. For example, the maintenance system may include a plurality of workstations to perform maintenance tasks, a charging rail that connects the workstations with the charging power source, and a plurality of platforms that move along the charging rail. The control system may instruct a platform to receive an aerial vehicle, couple the aerial vehicle to the charging rail, move the aerial vehicle among the workstations, and charge a battery of the aerial vehicle via the charging rail during movement and/or performance of various maintenance tasks.

A method for managing the operation of an AC power distribution network to which connect a plurality of electric vehicles, at random times and at random locations to receive electrical energy for charging. The AC power distribution network is characterized by a dynamic state of balance between power generation and load, and it has an operating reserve which is a supplemental power generation capacity available to the AC power distribution network. The method includes the step of forecasting a power-supply contribution that would be available to the AC power distribution network from the electric vehicles connected to the AC power distribution network in the event the AC power distribution network experiences a state of imbalance resulting from a power-generation deficit. The method further includes adjusting the magnitude of the operating reserve on the basis of the forecasting.

A mobile power for outdoor power supply includes a power housing, a battery pack, a driving device, a controller and a tracking device. The battery pack is disposed inside the power housing. The power housing is provided with at least one socket electrically connected with the battery pack. The battery pack is used to supply electric power to an electric tool during outdoor work through the socket. The driving device includes wheels and driving motors for driving the wheels. The controller is connected with the driving motors. The tracking device is connected with the controller. The tracking device is used to track the user of the mobile power. The controller controls the driving device to drive the power housing to automatically follow the user according to the tracking result of the tracking device. The mobile power is suitable for power supply for high-power electric tools during outdoor work.