Abstract: A high-frequency transformer, includes: an iron core, primary windings and secondary windings, wherein the iron core is of an integrated equilateral triangle structure, the primary windings and the secondary windings are uniformly wound around three sides of the iron core, and the primary windings and/or the secondary windings are symmetrically distributed on the three sides.

Abstract: Provided in the present application are an air duct system and a refrigeration appliance provided having the same. The air duct system comprises a drying system and a cooling system arranged in cooperation with each other, the cooling system has an evaporator and an air return port and an air supply port arranged on the two sides of the evaporator, and the drying system is disposed between the air return port and the evaporator, and comprises an air compressor and an air storage tank connected to each other; the air discharged by the air return port passes in sequence through the air compressor and the air storage tank and then flows to the evaporator, so that the air passing through the evaporator is dried, avoiding the problems of frosting and low efficiency.

Abstract: A frequency conversion power transmission system includes: a new energy power generation base, a first isolation device, a second isolation device, an alternating current-alternating current (AC-AC) frequency conversion device and a power transmission cable; the new energy power generation base is configured to supply electrical energy to an AC power grid, and operate at a constant voltage and a constant or variable frequency according to environmental conditions including weather, an environment or a distance; the first isolation device is connected to the new energy power generation base; the second isolation device is connected to the AC power grid; an input terminal of the AC-AC frequency conversion device is connected to the first isolation device, an output terminal of the AC-AC frequency conversion device is connected to the second isolation device, and the power transmission cable is configured to connect the new energy power generation base and the first isolation device.

Abstract: A compensation circuit, chip, method and device, a storage medium, and an electronic device are disclosed. The compensation circuit may include an analog module (102) including an input node (1022) and an output node (1024), wherein the input node (1022) is configured to receive an input signal and the output node (1024) is configured to output an output signal; and a linearity compensation module (104) including a plurality of transconductance units (1042), where the plurality of transconductance units (1042) are configured to acquire a first configuration signal and configure a combination of the plurality of transconductance units (1042) based on the first configuration signal to provide a compensation signal to the output node (1024), and the first configuration signal is configured to indicate a signal at any position in the analog module (102).

Abstract: Embodiments of the present disclosure disclose an information displaying method and apparatus, and storage medium. The information display method comprises: acquiring the maximum number of views displayed in a preset row and the number of preset rows in a preset display region according to preset layout requirements; combining the same number of views as the maximum views displayed in the preset row into one row chain; constructing the same number of row chains as the preset row to obtain display row chains, while displaying information among various row chains of the display row chains by position constraint; and displaying information to be displayed in the display row chains based on the maximum number of views displayed in the preset row when the information to be displayed is acquired.

Abstract: The present disclosure provides an unmanned logistics vehicle, and a transaction system and method. The unmanned logistics vehicle includes a signal transceiving device in communication with a transaction server and is used for receiving a shipping/pickup request; a central controller for controlling the unmanned logistics vehicle to drive to a designated place according to the shipping/pickup request received by the signal transceiving device; an on-board compartment for placing goods; a display device for displaying information of the goods placed in the on-board compartment. The transaction system includes a shipping-side client terminal, a pickup-side client terminal, a transaction server and the unmanned logistics vehicle, the shipping-side client terminal, the pickup-side client terminal and the unmanned logistics vehicle are in communication with the transaction server.

Abstract: The present disclosure provides a method and system for controlling an unmanned logistics vehicle. The control method of the unmanned logistics vehicle comprises: when an unmanned logistics vehicle remains at a shipping location/pickup location, when a feature instruction of a user is recognized, the unmanned logistics vehicle is controlled to drive away from the shipping location/pickup location; and the feature instruction comprises at least one of a voice instruction, a limb action instruction, a fingerprint unlocking instruction and a facial expression instruction. The present disclosure increases the safety, efficiency, and intelligence of unmanned logistics vehicle operation, and enhances user experience.

Abstract: Provided are a forwarding domain allocation method and device, a storage medium, and an electronic device. The method may includes: acquiring target messages from different input ports, the number of the acquired target messages being greater than or equal to the number of input ports; acquiring identifier information carried in the target message; and on the basis of the identifier information carried in the target message, allocating a forwarding domain to the target message.

Abstract: The present disclosure provides a method and system for controlling an unmanned logistics vehicle. The control method of the unmanned logistics vehicle comprises: when an unmanned logistics vehicle remains at a shipping location/pickup location, when a feature instruction of a user is recognized, the unmanned logistics vehicle is controlled to drive away from the shipping location/pickup location; and the feature instruction comprises at least one of a voice instruction, a limb action instruction, a fingerprint unlocking instruction and a facial expression instruction. The present disclosure increases the safety, efficiency, and intelligence of unmanned logistics vehicle operation, and enhances user experience.

Abstract: The present disclosure provides an unmanned vehicle and an unmanned rescue system. The unmanned vehicle includes: a communication unit for receiving a rescue request signal carrying personal information and location information of a rescue object; a main control unit for, after the communication unit receives the rescue request signal, controlling the unmanned vehicle to drive to the location of the rescue object; a broadcasting unit controlled by the main control unit for broadcasting the personal information and location information of the rescue object during the drive of the unmanned vehicle. The unmanned vehicle rescue system includes a triggering device, a control center and the unmanned vehicle; the triggering device is used for sending out a “help” signal; the control center is used for sending out a rescue request signal to the unmanned vehicle.

Abstract: A power electronic transformer structure includes: a support, a high-frequency transformer, a base, high-voltage side modules, and a low-voltage side module. The high-voltage side modules are respectively located at the front, top, and back of the support; the low-voltage side module is located at the bottom of the support; the high-frequency transformer is located at the middle of the support.

Abstract: Provided are an insulation coordination method and system for a series compensation apparatus, a storage medium and an electronic device.

Abstract: Provided are an insulation coordination method and system for a series compensation apparatus, a storage medium and an electronic device.

Abstract: Disclosed in embodiments of the present invention are a control method and device for an alternating-current and direct-current conversion circuit, and a computer storage medium. The alternating-current and direct-current conversion circuit comprises a first commutation unit, a second commutation unit, and a coupling unit. By obtaining voltage information and current information of the alternating-current and direct-current conversion circuit, a controllable device of the first commutation unit can be controlled to be turned on in delay or turned off in advance; and the second commutation unit is controlled to work in a controllable rectification state or a controllable inversion state or an uncontrollable rectification state.

Abstract: Disclosed in embodiments of the present invention are a control method and device for an alternating-current and direct-current conversion circuit, and a computer storage medium. The alternating-current and direct-current conversion circuit comprises a first commutation unit, a second commutation unit, and a coupling unit. By obtaining voltage information and current information of the alternating-current and direct-current conversion circuit, a controllable device of the first commutation unit can be controlled to be turned on in delay or turned off in advance; and the second commutation unit is controlled to work in a controllable rectification state or a controllable inversion state or an uncontrollable rectification state.

Abstract: This invention is related to a lamp bulb with optical pattern, which consists of a bulb body, a filament and a conducting wire. The filament in the bulb body was conducted out from the tail of the bulb body by the conducting wire. The head of the bulb body is a solid, the outside is a convey arc and the inside is a triangle. The filament is connected to the conducting wire in a straight line. The bulb of the present invention has a higher luminosity and can use fully the light emitted from the filament. Because of the special structure in the bulb body, the light beam emitted by the bulb forms beautiful patterns. For example, it can form directly eye-shaped or solar eclipse-like aureola halo patterns.

Abstract: This invention is related to a halo bulb, which consists of a bulb body, a filament and a conducting wire. The filament in the bulb body was conducted out from the tail of the bulb body by the conducting wire. The head of the bulb body is a solid, the outside is a concave circular arc and the inside is a triangle. The filament is connected to the conducting wire in a straight line. The bulb of the present invention has a higher luminosity and can use fully the light emitted from the filament. Because of the special structure in the bulb body, the light beam emitted by the bulb forms beautiful patterns. For example, it can form directly eye-shaped or solar eclipse-like aureola halo patterns. The invention opened the market of Christmas bulb and bulb string and changed the simple condition of Christmas bulb. The bulb of the present invention, with the beam and halo background patterns, can provide better light and vision effect.