Abstract: A processor operating a physical machine and a virtual machine is shown. The processor includes a virtualization hardware accelerator, which pre-caches whole instruction content, read from a virtual machine memory, of a target trigger instruction in a virtual machine control data structure, wherein the target trigger instruction is operative to trigger a virtual machine exit event and needs instruction emulation on the physical machine. A virtual machine hypervisor run by the physical machine in software obtains the instruction content of the target trigger instruction from the virtual machine control data structure, and performs instruction decoding and instruction emulation for the target trigger instruction based on the obtained instruction content.

Abstract: A power conversion system is provided with a first side and a second side, and includes: a power device, where a first port of the power device is connected in parallel to a DC voltage source or the first side, and a second port of the power device is connected in series between the first side and the second side; a bidirectional switch, connected in parallel to the second port of the power device; a driver, connected to the bidirectional switch; a master controller, connected to the driver; and a power supply, connected to the driver, where the driver controls the bidirectional switch when the master controller is powered down, enabling a current flowing into the power conversion system from the first side or the second side to remain an original flow direction.

Abstract: The disclosed computer-implemented method may include creating a digital transportation pass that allows transportation requestor devices to request transportation via the digital transportation pass within a multi-modal transportation ecosystem. The method may further include receiving a transportation request from a transportation requestor device. The method may also include determining that the transportation request satisfies one or more redemption criteria for redeeming the digital transportation pass, and then fulfilling the transportation request in response to determining that the transportation request satisfies the redemption criteria. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: The invention provides an energy storage system, including: an energy storage converter having an AC end electrically connected to an AC power supply or a load, and a DC end electrically connected to a DC bus; at least one battery unit, each electrically connected to the DC bus through a DC/DC converter; and a start unit electrically connected between a battery unit and the DC bus. When the energy storage system starts through the battery unit, the start unit establishes a bus voltage to a set voltage through electric power of the battery unit. The energy storage system of the invention has black start capability, a simple structure and a low cost.

Abstract: The invention provides a bidirectional DC/DC converter, including: a low-voltage port having a first voltage; a high-voltage port; a start circuit having one end electrically connected to the low-voltage port; an inductor having one end electrically connected to the other end of the start circuit; and a switch circuit having both ends electrically connected to the high-voltage port and the other end of the inductor, respectively. The start circuit includes at least one controllable switch. When starting from the low-voltage port, a voltage of the high-voltage port is established using the first voltage, by controlling the at least one controllable switch. The bidirectional DC/DC converter has a self-start capability, and the voltage soft start way is flexibly controllable.

Abstract: A video rendering method and apparatus, a medium and an electronic device are provided. The method includes: acquiring a target video obtained by encoding corresponding images of a first video as a foreground image and a second video as a background image; decoding the target video by a video player to obtain a decoding result which includes foreground image information and background image information corresponding to a first image in the first video; rendering the foreground image information and the background image information corresponding to the first image by the video player, so that the foreground image obtained by rendering the foreground image information and the background image obtained by rendering the background image information can be superimposed to form a three-dimensional effect.

Abstract: Provided are a crawler and a snow sweeping equipment. The crawler includes a crawler body, driving wheel, driven wheel, first frame body, second frame body, first barrier and second barrier. The driving wheel and the driven wheel are respectively arranged at two ends of the inner side of the crawler body, so that the driving wheel and driven wheel are connected through the crawler body. The first frame body and second frame body are respectively arranged at two opposite sides of the axis direction of the driving wheel, so that the driving wheel and driven wheel are connected. The first barrier and second barrier are both arranged between the driving wheel and driven wheel, the distance between the first barrier and the driving wheel is L1, and 0<L1<5 mm; the distance between the second barrier and the driven wheel is L2, and 0<L2<5 mm.

Abstract: Methods, computer program products, computer systems, and the like are disclosed that provide for scalable deduplication. Such methods, computer program products, and computer systems can include, in response to receiving a request to perform a lookup operation, performing the lookup operation and, in response to the signature not being found, forwarding the request to a remote node. Further, in response to receiving an indication that the signature was not found at the remote node, processing the subunit of data as a unique subunit of data.

Abstract: A flying capacitor converter, a voltage converter and an energy storage system are provided. The flying capacitor converter includes a high-voltage side, a low-voltage side, a power switch unit, a current switch unit and a current detection unit. The high-voltage side is electrically connected with a first power source. The low-voltage side is electrically connected with a second power source. The power switch unit is electrically connected between the high-voltage side and the low-voltage side and includes three terminals and four power switches. The current switch unit is electrically connected with the high-voltage side, the low-voltage side and/or a common node. The current detection unit is electrically connected between a third terminal of the power switch unit and the common node. If the current detected by the current detection unit indicates that a short-circuit condition occurs, the power switch unit is disconnected from the high-voltage side and/or the low-voltage side.

Abstract: An energy storage module includes a bus connection part, a battery pack, a capacitor and a series compensation DC conversion device. A first conduction terminal of the series compensation DC conversion device is electrically connected with a positive bus connection terminal and a negative bus connection terminal of the bus connection part, or the first conduction terminal is connected with a battery positive terminal and a battery negative terminal of the battery pack. A second conduction terminal of the series compensation DC conversion device is electrically connected with two terminals of the capacitor. A four-quadrant DC/DC converter of the series compensation DC conversion device controls the capacitor to generate a compensation voltage to compensate a voltage between the two terminals of the battery pack, or the four-quadrant DC/DC converter adjusts a current flowing through the battery pack to a set value.

Abstract: An energy storage module with bypass circuit is provided. The energy storage module includes a first battery pack, a first capacitor, a bypass circuit and a bidirectional isolated converter. The first capacitor is electrically connected between the positive bus connection terminal and the first positive battery terminal or between the negative bus connection terminal and the first negative battery terminal. The bypass circuit is electrically connected to two terminals of the first capacitor. The first positive and negative connection terminals of the bidirectional isolated converter are electrically connected to the positive and negative bus connection terminals respectively or are electrically connected to the first positive and negative battery terminals respectively. The second positive and negative connection terminals of the bidirectional isolated converter are electrically connected to the two terminals of the first capacitor respectively.

Abstract: An energy storage system includes a DC bus, an energy storage converter, n first battery racks and m energy storage units. The DC bus has a positive bus and a negative bus. The energy storage converter is electrically connected to the DC bus. Each of the n first battery racks is electrically connected between the positive bus and the negative bus directly. Each of the m energy storage units includes a second battery rack and a DC/DC converter. The DC/DC converter is electrically connected between the corresponding second battery rack and the DC bus. The DC/DC converter performs electric energy conversion between the corresponding second battery rack and the DC bus.

Abstract: A lock, a vehicle parking system, and a vehicle parking method are provided. The lock includes a main body, a lock switch, a lock controller, a lock communication circuit, and a battery. The battery is connected to the lock switch, the lock controller, and the lock communication circuit, and configured to supply electrical energy to the lock switch, the lock controller, and the lock communication circuit. The lock communication circuit is connected to the lock controller, and transmits a locking instruction or an unlocking instruction to the lock controller when receiving the locking instruction or the unlocking instruction from a second device located outside the lock. The lock controller is connected to the lock switch connected to the main body, and the lock controller controls, when receiving the locking instruction or the unlocking instruction, the main body to perform a locking operation or an unlocking operation through the lock switch.

Abstract: An energy storage module with bypass circuit is provided. The energy storage module includes a first battery pack, a first capacitor, a bypass circuit and a bidirectional isolated converter. The first capacitor is electrically connected between the positive bus connection terminal and the first positive battery terminal or between the negative bus connection terminal and the first negative battery terminal. The bypass circuit is electrically connected to two terminals of the first capacitor. The first positive and negative connection terminals of the bidirectional isolated converter are electrically connected to the positive and negative bus connection terminals respectively or are electrically connected to the first positive and negative battery terminals respectively. The second positive and negative connection terminals of the bidirectional isolated converter are electrically connected to the two terminals of the first capacitor respectively.

Abstract: An energy storage module includes a bus connection part, a battery pack, a capacitor and a series compensation DC conversion device. A first conduction terminal of the series compensation DC conversion device is electrically connected with a positive bus connection terminal and a negative bus connection terminal of the bus connection part, or the first conduction terminal is connected with a battery positive terminal and a battery negative terminal of the battery pack. A second conduction terminal of the series compensation DC conversion device is electrically connected with two terminals of the capacitor. A four-quadrant DC/DC converter of the series compensation DC conversion device controls the capacitor to generate a compensation voltage to compensate a voltage between the two terminals of the battery pack, or the four-quadrant DC/DC converter adjusts a current flowing through the battery pack to a set value.

Abstract: This disclosure relates to a battery assembly of an electrified vehicle, and in particular to a battery pack with a vent gas passageway. An example battery assembly includes a battery array having a plurality of battery cells. Each of the battery cells includes a vent configured to release vent gas from a respective one of the battery cells. Further, the battery assembly includes an enclosure assembly surrounding the battery array, and a vent gas passageway within the enclosure assembly. The vent gas passageway includes a plurality of inlet ports, and each of the inlet ports is substantially aligned with a respective one of the vents.

Abstract: Systems, methods, and other embodiments associated with performing maintenance of a hardware node and relocating (live migrating) virtual machine (VM) instances in a multi-tenant, hyper scale, public Cloud service are described. In one embodiment, the method includes finding a suitable hardware node for hosting one or more VM instances from a hardware node selected for maintenance, preparing it for hosting VMs, and moving (live migrating) all virtual machines from the hardware node to the hosting hardware node.

Abstract: Methods, computer program products, computer systems, and the like are disclosed that provide for scalable deduplication. Such methods, computer program products, and computer systems can include, in response to receiving a request to perform a lookup operation, performing the lookup operation and, in response to the signature not being found, forwarding the request to a remote node. Further, in response to receiving an indication that the signature was not found at the remote node, processing the subunit of data as a unique subunit of data.

Abstract: Methods, computer program products, computer systems, and the like are disclosed that provide for scalable deduplication in an efficient and effective manner. For example, such methods, computer program products, and computer systems can include receiving a data object at an assigned node, determining whether the data object includes a sub-data object, and processing the sub-data object. The assigned node is a node of a plurality of nodes of a cluster, where the data object includes a data segment, and a signature. The signature is generated based, at least in part, on data of the data segment. The processing includes sending the sub-data object to a remote node. The remote node is another node of the plurality of nodes of the cluster.

Abstract: The present disclosure relates to the technical field of unmanned aerial vehicle (UAV) tests, and more particularly, to an electromagnetic release device for use in vertical falling tests of tri-rotor UAVs and including a mounting frame and multiple clamping and release modules arranged on the mounting frame. movable kits, which include a ferromagnetic plate matching and connected with the electromagnetic adsorption assembly, one end of the ferromagnetic plate is hinged with the electromagnet mounting frame, and the other end of the ferromagnetic plate is connected with the UAV connecting plate; The present disclosure uses electromagnetic control to accurately control the simultaneous opening of three clamping and release modules of a UAV, realizes the release and landing of the UAV in a horizontal status, and is characterized by simple structure and easy operation.