Abstract: A drive circuit and a haptic feedback system. The drive circuit includes a voltage amplification circuit and a current amplification circuit. The voltage amplification circuit is electrically connected to a signal input end and a signal output end and configured to amplify a voltage at the signal input end and output an amplified voltage to the signal output end. The current amplification circuit is electrically connected to an intermediate node and the signal output end and configured to input a compensation current to the signal output end, so that a current at the signal output end is a sum of a current at the signal input end and the compensation current. A current at the intermediate node equals the current at the signal input end.

Abstract: A haptic feedback signal detection circuit (211-m), a driving control circuit (200), and a haptic feedback apparatus. The haptic feedback signal detection circuit (211-m) includes: a charge-voltage conversion circuit (2111-m) coupled to at least one haptic detection piezoelectric device (021-m) in a haptic feedback panel (100), wherein the charge-voltage conversion circuit (2111-m) is configured to convert, when a target object is pressed, a charge signal of each of the at least one haptic detection piezoelectric device (021-m) into an initial voltage signal and then output the initial voltage signal; and at least one voltage amplifier circuit (2112-m), wherein the at least one voltage amplifier circuit (2112-m) is configured to sequentially amplify the initial voltage signals into target voltage signals and then output the target voltage signals to a detection output end as haptic feedback signals.

Abstract: A haptic feedback module and a haptic feedback device relate to the technical field of electronics. The haptic feedback module includes: a touch control module having a touch control face; a bottom plate disposed on one side of the touch control module facing away from the touch control face; and an actuator disposed between the touch control module and the bottom plate, wherein the actuator is connected to the touch control module through a first supporting portion, the actuator is connected to the bottom plate through a second supporting portion, and the actuator is used for driving the touch control module to vibrate in response to a driving signal, so as to form haptic feedback on the touch control face.

Abstract: A haptic feedback module and a haptic feedback device relate to the technical field of electronics. The haptic feedback module includes: a touch control module having a touch control face; a bottom plate disposed on one side of the touch control module facing away from the touch control face; and an actuator disposed between the touch control module and the bottom plate, wherein the actuator is connected to the touch control module through a first supporting portion, the actuator is connected to the bottom plate through a second supporting portion, and the actuator is used for driving the touch control module to vibrate in response to a driving signal, so as to form haptic feedback on the touch control face.

Abstract: This disclosure provides techniques of implementing online somatosensory dance competitions. The techniques comprise assigning a room to one or more players in response to receiving one or more requests of starting a game, wherein all players in a same room share a same dance video; outputting a plurality of standard movement images corresponding to the same dance video in a chronological order, wherein the plurality of standard movement images each indicate position coordinates of different skeleton nodes at a corresponding moment; receiving dance movement signals associated with each of the one or more players, and determining scores for each player based on a similarity between the dance movement signals and standard movement parameters, wherein the standard movement parameters correspond to the standard movement images; and collecting and outputting statistics on an overall score and ranking of each of the one or more players.

Abstract: This disclosure provides techniques of extracting movements from a dance video. The techniques comprise receiving a dance video that includes one or more dancers and that is uploaded by a user, and obtaining a video frame in the dance video; recognizing, based on a skeleton node recognition algorithm, skeleton node images from the video frames corresponding to a target dancer, where the target dancer is selected from the one or more dancers; performing cluster analysis on the skeleton node images recognized from the dance video and corresponding to each target dancer to obtain a plurality of cluster sets; determining a cluster center in each of the plurality of cluster sets as a key skeleton node image; and sequentially outputting the key skeleton node images to obtain a standard movement sequence corresponding to each target dancer in the dance video.

Abstract: The present disclosure relates to the technical field of software, and in particular to a task association method and apparatus, and an electronic device. The method includes: displaying a first user interface, the first user interface including problem description information and a first control corresponding to the problem description information, and the first user interface is an interface of a first software platform; in response to an input for the first control, determining, in a second software platform, a first task corresponding to the problem description information, the first task being used for solving a problem corresponding to the problem description information; and associating the problem description information with the first task.

Abstract: Embodiments of this application provide a network acceleration method and an apparatus. The method is: A first electronic device runs a first application; the electronic device predicts whether a user waits to get into a target elevator; and the first application of the electronic device performs network acceleration processing if determining that the user waits to get into the target elevator, where the network acceleration processing includes at least one of caching operation data of the first application in advance, reducing a frame rate of the first application, reducing a code rate of the first application, or reducing resolution of the first application.

Abstract: A haptic feedback signal detection circuit (211-m), a driving control circuit (200), and a haptic feedback apparatus. The haptic feedback signal detection circuit (211-m) comprises: a charge-voltage conversion circuit (2111-m) coupled to at least one haptic detection piezoelectric device (021-m) in a haptic feedback panel (100), wherein the charge-voltage conversion circuit (2111-m) is configured to convert, when a target object is pressed, a charge signal of each of the at least one haptic detection piezoelectric device (021-m) into an initial voltage signal and then output the initial voltage signal; and at least one voltage amplifier circuit (2112-m), wherein the at least one voltage amplifier circuit (2112-m) is configured to sequentially amplify the initial voltage signals into target voltage signals and then output the target voltage signals to a detection output end as haptic feedback signals.

Abstract: An integrated water-cooling pump includes a main body, which includes a water block, a bottom plate, a water inlet, a water outlet, a cavity, a first inlet pipe, a fixed plate, a water nozzle, and a first sealing ring. The bottom plate is welded to a bottom of the water block. The bottom plate has an internal hollow structure. A bottom of an inner wall of the bottom plate is fixedly connected with heat sinks. An upper surface of the bottom plate is symmetrically provided with two water inlets. A middle of the upper surface of the bottom plate is provided with the water outlet. The water block is provided with the cavity inside near the bottom plate. The bottom plate is communicated with the cavity through two water inlets. The upper surface of the bottom plate is fixedly connected with a bottom of the first inlet pipe.

Abstract: This disclosure provides techniques of implementing online somatosensory dance competitions. The techniques comprise assigning a room to one or more players in response to receiving one or more requests of starting a game sent by the one or more players, wherein all players in a same room share a same dance video; outputting a plurality of standard movement images corresponding to the same dance video in a chronological order, wherein the plurality of standard movement images each indicate position coordinates of different skeleton nodes at a corresponding moment; receiving dance movement signals associated with each of the one or more players, and determining scores for each player based on a similarity between the dance movement signals and standard movement parameters, wherein the standard movement parameters correspond to the standard movement images; and collecting and outputting statistics on an overall score and ranking of each of the one or more players.

Abstract: This disclosure provides techniques of extracting movements from a dance video. The techniques comprise receiving a dance video that includes one or more dancers and that is uploaded by a user, and obtaining a video frame in the dance video; recognizing, based on a skeleton node recognition algorithm, skeleton node images from the video frames corresponding to a target dancer, where the target dancer is selected from the one or more dancers; performing cluster analysis on the skeleton node images recognized from the dance video and corresponding to each target dancer to obtain a plurality of cluster sets; determining a cluster center in each of the plurality of cluster sets as a key skeleton node image; and sequentially outputting the key skeleton node images to obtain a standard movement sequence corresponding to each target dancer in the dance video.

Abstract: An integrated water-cooling pump includes a main body, which includes a water block, a bottom plate, a water inlet, a water outlet, a cavity, a first inlet pipe, a fixed plate, a water nozzle, and a first sealing ring. The bottom plate is welded to a bottom of the water block. The bottom plate has an internal hollow structure. A bottom of an inner wall of the bottom plate is fixedly connected with heat sinks. An upper surface of the bottom plate is symmetrically provided with two water inlets. A middle of the upper surface of the bottom plate is provided with the water outlet. The water block is provided with the cavity inside near the bottom plate. The bottom plate is communicated with the cavity through two water inlets. The upper surface of the bottom plate is fixedly connected with a bottom of the first inlet pipe.

Abstract: The present disclosure provides a synchronization system and method for a substation monitoring backend database, an SCD, and an RCD. The system includes: a synchronization token management unit, an SCD synchronization module, an RCD synchronization module, and a monitoring backend database synchronization module. The synchronization token management unit is configured to send or reclaim modification tokens, only at most one of which can exist at a time, and send a synchronization token.

Abstract: Disclosed is a radial-axial air gap three-phase disc-type transverse flux permanent magnet motor. Each phase includes a stator consisting of shoe-shaped stator cores and shoe-shaped permanent magnets, and a radial-axial rotor. The permanent magnets are magnetized in the circumferential direction, and the magnetization directions of the two adjacent permanent magnets are opposite to each other. Armature windings are wound in the grooves formed by the alternately arranged stator cores and the permanent magnets. The radial-axial rotor includes radial teeth, axial teeth, and right-angled yokes. The radial teeth are connected to the axial teeth through the right-angled yokes. Adjacent radial/or axial teeth are spaced at a mechanical angle of 360/n degrees. Radial teeth and the adjacent axial teeth under the same pole pairs are spaced at a mechanical angle of 180/n degrees, where n is the number of pole pairs of the radial-axial air gap three-phase disc-type transverse flux permanent magnet motor.

Abstract: Disclosed is a radial-axial air gap three-phase disc-type transverse flux permanent magnet motor. Each phase includes a stator consisting of shoe-shaped stator cores and shoe-shaped permanent magnets, and a radial-axial rotor. The permanent magnets are magnetized in the circumferential direction, and the magnetization directions of the two adjacent permanent magnets are opposite to each other. Armature windings are wound in the grooves formed by the alternately arranged stator cores and the permanent magnets. The radial-axial rotor includes radial teeth, axial teeth, and right-angled yokes. The radial teeth are connected to the axial teeth through the right-angled yokes. Adjacent radial/or axial teeth are spaced at a mechanical angle of 360/n degrees. Radial teeth and the adjacent axial teeth under the same pole pairs are spaced at a mechanical angle of 180/n degrees, where n is the number of pole pairs of the radial-axial air gap three-phase disc-type transverse flux permanent magnet motor.

Abstract: The present disclosure provides a synchronization system and method for a substation monitoring backend database, an SCD, and an RCD. The system includes: a synchronization token management unit, an SCD synchronization module, an RCD synchronization module, and a monitoring backend database synchronization module. The synchronization token management unit is configured to send or reclaim modification tokens, only at most one of which can exist at a time, and send a synchronization token.

Abstract: A flight vehicle and a tracking method are disclosed. The method includes: collecting the flight vehicle's geographic location information and image data of the areas over which the flight vehicle flies; establishing a correspondence between the geographic location information and the image data collected at a same moment; and sending the foregoing data between which the correspondence is established. A receive end receives the geographic location information and the image data between which the correspondence is established; draws a flight path of the flight vehicle by using the geographic location information; obtains geographic location information corresponding to a location selected on the flight path, and displays image data corresponding to the geographic location information.

Abstract: A buoy-type high-frequency ground wave radar system. A buoy platform is used as an offshore carrier of a ground wave radar. A sky wave emission subsystem is disposed on a shore base and emits a high-frequency electromagnet wave. After the high-frequency electromagnet wave is refracted by the ionosphere and is reflected by the sea surface, a sky wave signal is formed. An attitude measurement subsystem measures and acquires attitude data of the buoy platform in real time. A ground wave radar subsystem receives a ground wave signal by using the ground wave radar, and processes the signal to form a ground wave doppler spectrum. Simultaneously, the sky wave signal is received, ionosphere disturbance compensation is performed on the sky wave signal in a frequency domain and then the sky wave signal is processed to form a sky wave doppler spectrum.