Abstract: A liquid-cooled plate radiator is disclosed. The liquid-cooled plate radiator includes a radiator body. A coolant liquid runner for circulating a coolant liquid is formed inside the radiator body. The coolant liquid runner includes a plurality of radiating sub-runners. Then, a plurality of fin units are arranged on the radiating sub-runners along a flow direction of the coolant liquid. The fin unit has a plurality of fins extending side by side along the flow direction of the coolant liquid. Moreover, the fins of the front and rear adjacent fin units on the radiating sub-runners are staggered, thereby increasing the radiating area, enhancing the disturbance of the coolant liquid when flowing inside the radiating sub-runners, and improving the radiating efficiency. Thus, the technical problems of limited radiating area and low radiating efficiency caused by a single linear coolant liquid runner are solved.

Abstract: The present application relates to a supercomputing server including: a case housing defining an accommodating space and provided with a mounting hole allowing communication between the accommodating space and an external environment; and a control unit disposed at an end portion of the case housing corresponding to the mounting hole and configured to be moved into or out of the accommodating space through the mounting hole. After the control unit is disassembled from the case housing, the control unit may be moved out of the accommodating space through the mounting hole at the end portion of the case housing to maintain the control unit. After the maintenance, the control unit is moved into the accommodating space through the mounting hole, and the control unit is fixed at the end portion of the case housing.

Abstract: A hashboard, a power supply system of a digital processing device and the digital processing device. The digital processing device comprises: a housing; N (>2) hashboards and a control board both located inside the housing. Each hashboard comprises: a substrate; power positive and power negative terminals respectively mounted on the substrate and adapted to be connected to another hashboard in series; a communication interface mounted on the substrate; and computing chips mounted on the substrate. A signal transfer path of the computing chips has a chain configuration. The N hashboards are connected in series to form a series power supply configuration, a power positive terminal of a first hashboard in the series power supply configuration is connected to a positive terminal of a power supply, and a power negative terminal of a last hashboard in the series power supply configuration is connected to a negative terminal of the power supply.

Abstract: The present disclosure provides a pedestrian re-identification method and apparatus. The pedestrian re-identification apparatus detects a pedestrian to be identified in a specified video frame, and within a specified time period before the capture time of the specified video frame, extracts all pedestrians appearing in the captured video frame and taking them to be historical pedestrians; calculating the feature distances between the pedestrian to be identified and the historical pedestrians; in order of feature distance, from small to large, extracting historical pedestrian identifications corresponding to a predetermined number of feature distances, and clustering the extracted historical pedestrian identifications so as to re-identify the pedestrians to be identified. The present disclosure effectively suppresses external noise interference and improves the success rate of pedestrian re-identification.

Abstract: A packet sending method includes: receiving, by a first node, a first broadcast data packet sent by a second node; and if a sequence number of the first broadcast data packet equals 1 plus a sequence number of a latest data packet saved by the first node, and the first node does not receive, within a first preset time period, a first acknowledgement indication for the first broadcast data packet of the second node, sending, by the first node, a first broadcast acknowledgement packet when the first preset time period elapses, where the first broadcast acknowledgement packet includes the first acknowledgement indication, and the first acknowledgement indication includes the sequence number of the first broadcast data packet and an address of the second node. This method could resolve acknowledgement packet implosion while ensuring broadcast packet reliability of a wireless mesh network.

Abstract: Embodiments of this application disclose a resonant tank circuit, a power supply using the same, and an electronic device. The resonant tank circuit includes: a number-of-turns variable transformer unit having an output end coil and an input end coil including at least two first connection ends and a second connection end; and a switch switching unit having a control end, a first input end, and at least two first output ends electrically connected to the first connection ends in a one-to-one manner, The number of coil turns between each of the first connection ends and the second connection end is not equal. A quantity of the first output ends is equal to a quantity of the first connection ends. The switch switching unit turns on circuit connection between the first input end and one of the first output ends according to a control signal received by the control end.

Abstract: The present application discloses a rotary liquid distributor for a liquid-cooled tank, and a liquid-cooled tank. The rotary liquid distributor includes a liquid distribution cavity and a liquid distribution arm provided in the liquid distribution cavity. The liquid distribution cavity rotates around a central shaft thereof. A plurality of the liquid distribution arms are uniformly distributed in a circumferential direction of the liquid distribution cavity. That is, the liquid distribution arm rotates with the liquid distribution cavity. Then, a liquid distribution outlet is provided between a first end and a second end of the liquid distribution arm. The liquid distribution outlet is located on a side of the liquid distribution arm facing away from a rotating direction.

Abstract: A hybrid network communication method is disclosed. A gateway device receives a first association request of a multimode device through a first physical interface, where the first association request includes a MAC address of a second physical interface of the multimode device. The gateway device receives a second association request of the multimode device through a third physical interface, where the second association request includes a MAC address of a fourth physical interface of the multimode device. The gateway device obtains an IPv6 address of the multimode device, and records a first correspondence and a second correspondence. The first correspondence includes the IPv6 address of the multimode device, the MAC address of the second physical interface, and the first physical interface. The second correspondence includes the IPv6 address of the multimode device, the MAC address of the fourth physical interface, and the third physical interface.

Abstract: A data processing device and a data processing system are provided. The data processing device includes a housing, which is thermally conductive and defines a sealed accommodating cavity; a hashboard, which is arranged in the accommodating cavity and is in fixed connection to the housing; a control board, which is in communicative connection to the hashboard; and a power supply module, which is in electrical connection to the hashboard.

Abstract: An electronic device includes an arithmetic unit layer and a power supply. The arithmetic unit layer comprises at least one arithmetic unit. Each arithmetic unit comprises a first housing in shape of cuboid. The height direction of the first housing extends in a first direction. The width direction extends in a second direction perpendicular to the first direction. The first housing is provided with first and second openings at both ends in the height direction to form a coolant passage extending in the first direction. The power supply and arithmetic unit layer are laminated in the second or a third direction. The height direction of the power supply is aligned with the height direction of each arithmetic unit. The power supply is provided with third and fourth openings at both ends in the height direction to form a coolant passage extending in the height direction of the power supply.

Abstract: Disclosed in embodiments of the present application are a liquid-cooling heat dissipation apparatus, a liquid-cooling data processing device and a temperature equalization method. The liquid-cooling heat dissipation apparatus includes a housing unit and a first liquid-cooling plate arranged in the housing unit. A first electronic unit and a second electronic unit are arranged on a first cooling surface and a second cooling surface arranged oppositely of the first liquid-cooling plate respectively, and the first electronic unit and the second electronic unit may be, for example, hashboards, that is, in the liquid-cooling heat dissipation apparatus provided in the embodiment of the present application, one liquid-cooling plate is correspondingly provided with two hashboards.

Abstract: A computing device and a series power supply method are disclosed. The computing device includes: a hash board, including a series power supply circuit, which includes m layers of to-be-powered chips that are connected in series between a power supply positive electrode and a power supply negative electrode of the hash board, wherein highest-layer to-be-powered chips are connected to the power supply positive electrode, and bottommost-layer to-be-powered chips are connected to the power supply negative electrode, wherein the power supply positive electrode is configured to receive a higher potential relative to the power supply negative electrode; a control board, configured to provide, to the hash board, control signals and communication signals that are accessed to the series power supply circuit through a communication interface of the highest-layer to-be-powered chips and communicated to lower layers through the m layers of to-be-powered chips that are connected in series.

Abstract: Implementations of this application provide a method and an apparatus for controlling a voltage of a power supply of a data processing device and a data processing device. The method includes: determining a computing power ratio of the data processing device based on an actual computing power and a theoretical computing power of the data processing device; generating a power supply control instruction based on a result of comparison between the computing power ratio and a predetermined threshold; and controlling an output voltage of the power supply of the data processing device based on the power supply control instruction. According to the implementations of this application, the output voltage of the power supply is controlled according to the computing power ratio, and a good compromise can be obtained between the power consumption loss and the computing power of the data processing device.

Abstract: The present disclosure is directed to Aa series-connected power supply circuit and a data processing device. The series-connected power supply circuit comprises: at least two layers of to-be-powered chips (A1, A2, ..., Am) connected in series between a first power supply end (A) and a second power supply end (B), with a highest-layer to-be-powered chip (Am) in the at least two layers of to-be-powered chips (A1, A2, ..., Am) connected to the first power supply end (A), and a bottommost-layer to-be-powered chip (A1) in the at least two layers of to-be-powered chips (A1, A2, ..., Am) connected to the second power supply end (B); and each layer of auxiliary power supply units (B1, B2, ..., Bm), which is respectively connected to each layer of the to-be-powered chips (A1, A2, ..., Am) wherein the first power supply end (A) is configured to receive a reference voltage.

Abstract: This application discloses a liquid cooling plate radiator and a computing device adopting the liquid cooling plate radiator. The liquid cooling plate radiator includes: a radiator body; and a cooling liquid flow channel located in the radiator body, wherein a width of the cooling liquid flow channel is not less than a width of at least two chips arranged.

Abstract: A computing device and a series power supply method are disclosed. The computing device includes: a hash board, including a series power supply circuit, which includes m layers of to-be-powered chips that are connected in series between a power supply positive electrode and a power supply negative electrode of the hash board, wherein highest-layer to-be-powered chips are connected to the power supply positive electrode, and bottommost-layer to-be-powered chips are connected to the power supply negative electrode, wherein the power supply positive electrode is configured to receive a higher potential relative to the power supply negative electrode; a control board, configured to provide, to the hash board, control signals and communication signals that are accessed to the series power supply circuit through a communication interface of the highest-layer to-be-powered chips and communicated to lower layers through the m layers of to-be-powered chips that are connected in series.

Abstract: A liquid-cooled plate radiator is disclosed. The liquid-cooled plate radiator includes a radiator body. A coolant liquid runner for circulating a coolant liquid is formed inside the radiator body. The coolant liquid runner includes a plurality of radiating sub-runners. Then, a plurality of fin units are arranged on the radiating sub-runners along a flow direction of the coolant liquid. The fin unit has a plurality of fins extending side by side along the flow direction of the coolant liquid. Moreover, the fins of the front and rear adjacent fin units on the radiating sub-runners are staggered, thereby increasing the radiating area, enhancing the disturbance of the coolant liquid when flowing inside the radiating sub-runners, and improving the radiating efficiency. Thus, the technical problems of limited radiating area and low radiating efficiency caused by a single linear coolant liquid runner are solved.

Abstract: An operational circuit of a virtual currency data processing device includes: at least two operational chip groups configured to operate within respective operating voltage threshold ranges of the operational chip groups to receive a communication signal which includes an issued task, perform calculations according to the issued task, and transmit a communication signal; a control module configured to operate within an operating voltage threshold range to transmit the communication signal which includes the issued task and receive the communication signal which includes the calculation result; at least two signal forwarding and electrical isolation modules, each of which is communicatively connected to and is configured to forward communication signals between the control module and the respective operational chip group, and isolate an operating voltage threshold of the operational chip groups to make the operational chip groups and the control module capable of identifying communication signals sent by each