Abstract: An energy storage system includes a plurality of bidirectional power converters and a plurality of windings. The plurality of windings shares a magnetic core. A controller transfers energy of a target battery to the magnetic core using a target bidirectional power converter and a target winding at a same time. A voltage of the target battery is greater than those of some or all batteries other than the target battery. As the battery is charged and discharged, the voltage of the battery changes, and the controller only needs to find a new target battery to continue discharging until voltages of all the batteries are equalized, for example, voltage differences between all the batteries are all within a preset voltage range.

Abstract: This application provides a power supply system. The power supply system includes first switch module, an UPS, and a plurality of power consumption branches. An input end of the first switch module is connected to a plurality of power supply apparatuses. An output end of the first switch module is connected to an input end of the UPS. The first switch module is switched between the plurality of power supply apparatuses to supply power to the UPS. An output end of the UPS is connected to each power consumption branch. The UPS is configured to receive electric energy and input a first voltage to each power consumption branch. Each power consumption branch includes a first transformer module and at least one power consumption load. The first transformer module is configured to convert the first voltage into a second voltage, and then provide the second voltage to the power consumption load.

Abstract: A battery pack includes a case, a first set of battery cells and a second set of battery cells received in the case, a circuit board, and a main power output interface. The first set of battery cells and the second set of battery cells can be connected in series or in parallel, and output two kinds of working voltage through the main power output interface. The battery pack further includes an extended power output interface and a switch provided between the first set of battery cells and the second set of battery cells. The battery pack can output a third voltage for an external device through the extended power output interface when the first set of battery cells and the second set of battery cells are connected in series through the switch. It's safe and reliable when charging the external device.

Abstract: Provided are a method for controlling a banknote accumulation device, and a banknote accumulation device and a cash processing apparatus. The method includes: determining whether a banknote to enter a receiving cavity is an abnormal banknote; where the abnormal banknote is a banknote that meets any of the following: the tilt angle of the banknote exceeds a first preset value, the length of the banknote exceeds a second preset value, the banknote and another banknote are stuck together, the banknote overlaps another banknote, or the spacing between the banknote and an adjacent banknote is smaller than a third preset value; in response to determining that the banknote to enter the receiving cavity is the abnormal banknote, controlling a support plate to move to increase the height of the banknote accumulation space; and controlling a banknote conveying mechanism to convey the abnormal banknote into the receiving cavity.

Abstract: Embodiments of this application provide an alternating current power supply circuit, a control method for an alternating current power supply circuit. The alternating current power supply circuit includes a rectifier module and an inverter module. The rectifier module includes a first inductor L1, a first branch, a second branch, a third branch, a first capacitor, and a second capacitor, the third branch includes a soft switching cell, the soft switching cell includes a first switching component and a second switching component that are reversely connected in series, and the first branch, the second branch, and the third branch form an I-type three-level topology or a T-type three-level topology. The inverter module includes a second inductor L1, a fourth branch, a fifth branch, a sixth branch, the first capacitor, and the second capacitor, the sixth branch includes the soft switching cell, and the fourth branch, the fifth branch.

Abstract: This application provides an uninterruptible power system and a driving method for an uninterruptible power system, and relates to the field of power conversion technologies, to resolve output interruption of the uninterruptible power system. The uninterruptible power system includes a first power input end, a second power input end, a load end, and a bypass, where the bypass includes a first bidirectional switch, and the first bidirectional switch is connected to the first power input end and the load end, and is configured to control connection or disconnection between the first power input end and the load end; and at least one main circuit, where each main circuit includes a bus and an inverter output unit. An input end of the bus is connected to the second power input end, and an output end of the bus is connected to the inverter output unit.

Abstract: A method for re-recognizing an object image is provided based on multi-feature information capture and correlation analysis weights of an input feature map by using a convolutional layer with a spatial attention mechanism and a channel attention mechanism, causing channel and spatial information to effectively combined, which not only focus on an important feature and suppress an unnecessary feature, but also improve a representation of a feature. A multi-head attention mechanism is used to process a feature after an image is divided into blocks to capture abundant feature information and determine a correlation between features to improve performance and efficiency of object image retrieval. The convolutional layer with the channel attention mechanism and the spatial attention mechanism is combined with a transformer having the multi-head attention mechanism to focus on globally important features and capture fine-grained features, thereby improving performance of re-recognition.

Abstract: An axle assembly and a method of assembly. An outboard wheel is mounted to an outboard mounting arrangement of a wheel hub. An inboard wheel and a brake drum are mounted to an inboard mounting arrangement of the wheel hub such that a brake drum mounting arrangement of the brake drum is axially positioned between the inboard wheel and the inboard mounting arrangement.

Abstract: An axle assembly having a brake drum and inboard and outboard wheels. The brake drum the inboard wheel may cooperate to inhibit movement of the inboard wheel in an inboard direction. An outboard wheel clamp and an outboard split ring may cooperate to inhibit movement of the outboard wheel in an outboard direction.

Abstract: A poor-QoE assessment method and a related device are provided. The method includes: obtaining m data streams transmitted by a network device; screening the m data streams, and determining that p data streams in the m data streams and that meet a first preset condition are data streams corresponding to a first type; performing feature extraction on the data streams corresponding to the first type, to obtain known feature vectors corresponding to the first type; training, by using the known feature vectors corresponding to the first type, an untrained first poor-QoE assessment model, to obtain a trained first poor-QoE assessment model; and performing, by using the trained first poor-QoE assessment model, poor-QoE assessment on n data streams corresponding to the first type, to obtain a first poor-QoE assessment result. This method can be universally used instead of an application.

Abstract: A network device includes a forwarding plane and an artificial intelligence (AI) circuit. The forwarding plane is coupled to the AI circuit. The AI circuit is configured to process data about network packets from the forwarding plane using a first AI algorithm. The forwarding plane may be directly coupled to the AI circuit, and the forwarding plane may further pre-process the network packets to obtain the data about the network packets.

Abstract: Methods and kits for removing calculus from a tooth, wherein the method can include applying a component A to the tooth, wherein component A comprises a hydrogen peroxide or a precursor thereto; applying a component B to the tooth, wherein component B comprises a non-enzymatic, hydrogen peroxide decomposition catalyst for generating oxygen gas; wherein components A and B are applied simultaneously or sequentially to the tooth, thereby generating oxygen gas to soften and/or loosen at least part of the calculus on the tooth; and removing at least a part of the calculus from the tooth.

Abstract: Provided are a method for calibrating sensors in a vending machine and a vending machine. input values of first input terminals and input values of second input terminals of sensors are determined through level 1 calibration and level 2 calibration, respectively, which may greatly increase the number of adjustable grades of the luminous intensity of an optical generator of each sensor, and may further greatly improve the success rate of calibration on the sensors.

Abstract: A system for implementing service function deployment includes an active apparatus and a standby apparatus for a first service, such as an active main processing unit (MPU) and a standby MPU. The active apparatus is configured to process the first service and deploy a first function module (such as a feature extraction module or an inference module) for a second service (such as an artificial intelligence (AI) service) on the standby apparatus. The standby apparatus is configured to process data of the second service by using the first function module. The second service may be implemented by using an idle resource of the standby apparatus for the first service.

Abstract: Embodiments of this application disclose a service type determining method and a related device. A first device obtains a dataset, where the dataset includes at least two 5-tuples. The first device determines a target feature (the target feature is used to indicate a service type corresponding to a target triplet) corresponding to the target triplet based on the dataset. In this way, the first device can identify the service type corresponding to the target triplet based on the target feature, to facilitate operations such as packet transmission traffic control or application identification based on the importance indicated by the service type.

Abstract: The disclosure provides an electric vehicle. The electric vehicle includes: a vehicle body provided with a power input port and a power supply device. The power supply device includes a charger and a detachable battery pack. The charger includes a power interface for obtaining external power, a charging portion provided with a docking interface, an output part, and a control unit. The output part includes a first power output interface connected with the power input port to supply power to the electric vehicle. When the power interface is connected with the external power, the control unit controls the charging portion to charge the battery pack.

Abstract: This application discloses a method, apparatus and storage medium for application identification. A network device performs flow behavior feature analysis according to a flow table to obtain a plurality of services. Each service includes one IP address and one port identifier, and one application may usually include a group of services. Therefore, the network device clusters the plurality of services according to the flow table and a domain name table, to obtain a plurality of application types. Each application type includes a plurality of services. Each application type corresponds to one application. Further, the network device may determine a label corresponding to each of the plurality of application types, the label identifying an application to which a data flow belongs.

Abstract: A working method of a modular uninterruptible power supply (UPS) includes: obtaining working parameters of the modular UPS, where the working parameters include an input voltage parameter, a load parameter, and a battery parameter; and adjusting a working mode of a power module in the modular UPS according to at least one of the working parameters of the modular UPS, so that not all power modules are in a same working mode, where the modular UPS includes K working modules, and 2?K.

Abstract: Disclosed are a vending machine and an item dispensing method of storage column thereof. In the item dispensing method of the storage column of the vending machine, controlling the first motor to start rotating for the first time to convey the target item to the inlet of the bucket; when detecting that the target item reaches the inlet of the bucket, controlling the first motor to stop rotating for the first time to make the target item enter the inside of the bucket under the driving of the second motor.

Abstract: Provided is a vending machine. The vending machine includes a control device, a cabinet, an item column, and a hopper. The hopper is located between the item column and a pickup port of the cabinet. The hopper includes a receiving bin provided with an opening. The vending machine further includes a detection device. The control device is configured to control the receiving bin to receive the item from the item column at a receiving position based on a purchase instruction from a user, and control the receiving bin to rotate from the receiving position to a first position located between the receiving position and the dispensing position based on the detection result that the item exists at the inlet of the hopper.