Abstract: A multimedia data processing method includes: when first multimedia data exists in a first input manager of a first processing node, generating a first processing task, the first processing task comprising the first multimedia data; calling the first processing node to execute the first processing task to obtain second multimedia data, the second multimedia data being data obtained by processing the first multimedia data in the first processing task; and writing the second multimedia data into a second input manager of at least one second processing node, the second input manager being an input manager associated with a first output manager of the first processing node. According to the method, a processing task and an input manager of a downstream node, decoupling between data which is processed is realized, and the structure of the processing system is updated without pausing the processing task.

Abstract: Computer vision systems and methods for end-to end training of neural networks are provided. The system generates a fixed point algorithm for dual-decomposition of a maximum-a-posteriori inference problem and trains the convolutional neural network and a conditional random field with the fixed point algorithm and a plurality of images of a dataset to learn to perform semantic image segmentation. The system can segment an attribute of an image of the dataset by the trained neural network and the conditional random field.

Abstract: A battery pack includes: a cell module, including at least one cell; a first collection module, including at least one first collection unit, the first collection unit being disposed within the cell, and being configured to collect first operational data of the cell; a data processing module, connected to the first collection unit, configured to perform thermal runaway detection on the cell based on the first operational data to obtain a first detection result; a second collection module, disposed outside the cell module, configured to be activated when the first detection result indicates that any one of the cell has a thermal runaway risk, and collect second operational data of the cell after activation; the data processing module is further connected to the second collection module, and further configured to perform secondary detection based on the second operational data to determine whether the cell has a thermal runaway risk.

Abstract: Disclosed are a power module component, a manufacturing method therefor and an application thereof, and the manufacturing method comprises: forming an inductor collection; and cutting the inductor collection to obtain the power module component, where the power module component comprises a plurality of windings which are arranged at intervals along a first direction in sequence. In the present application, a plurality of windings are designed to be arranged at intervals along the same direction on a conductor, and then separated into a plurality of power module components by cutting, thereby reducing the fluidity requirement for magnetic powder, overcoming the difficulty in implanting windings into the mold cavity, and reducing the DC resistance of the inductor.

Abstract: Embodiments of the present application provide a method for detecting lithium precipitation of a battery and a related apparatus. The method may include: acquiring pressure data of a predetermined position of the battery; and detecting lithium precipitation of the battery according to the pressure data and reference pressure data, the pressure data including actually measured pressure data of the battery, and the reference pressure data including pressure data related to a predetermined amount of lithium precipitation of the battery under a predetermined condition.

Abstract: Provided are a method and apparatus for monitoring a PDCCH, and a base station and a user equipment. On a base station side, the method comprises: configuring an association relationship between a notification signal or signaling and a PDCCH; and sending the notification signal or signaling associated with the PDCCH to a user equipment to notify the user equipment to start monitoring the PDCCH. On a user equipment side, the method comprises: receiving a notification signal or signaling which is associated with a PDCCH and sent by a base station; and starting to monitor the PDCCH according to the notification signal or signaling associated with the PDCCH. By means of the present invention, the signaling overhead and the power consumption of a user equipment can be reduced.

Abstract: Computer vision systems and methods for end-to end training of neural networks are provided. The system generates a fixed point algorithm for dual-decomposition of a maximum-a-posteriori inference problem and trains the convolutional neural network and a conditional random field with the fixed point algorithm and a plurality of images of a dataset to learn to perform semantic image segmentation. The system can segment an attribute of an image of the dataset by the trained neural network and the conditional random field.

Abstract: The present disclosure provides a device and method for calibrating a particle image velocimetry (PIV) image based on laser linear arrays, and relates to the technical field of laser velocity measurement and image restoration. The present disclosure can solve the problem of image distortion caused by a shock wave of a model in a hypersonic wind tunnel, thereby realizing distortion capture and correction. The device includes a laser emission component configured to emit equidistant laser linear arrays; an optical component configured to perform light splitting on laser rays to form a laser grating in a test observation region; a camera configured to acquire a distorted laser grating image when a working condition of a wind tunnel test section model is adjusted to a working condition of a PIV test; and a background processor configured to calibrate and restore the distorted laser grating image with a neural network-based distortion-restoring calibration algorithm.

Abstract: The present disclosure provides a velocity measurement method, system, device and apparatus and storage medium, as well as a velocity field measurement method and system.

Abstract: A battery pack includes a cell module including at least one cell, a first collecting module including at least one first collecting unit arranged in the cell and configured to collect first operation data of the cell, and a data processing module connected with the first collecting unit and configured to perform a thermal runaway detection on the cell based on the first operation data to obtain a first detection result.

Abstract: The present application provides a separator and a preparation method thereof, a secondary battery, and a device. The separator includes a microporous layer; the microporous layer includes an alkali metal-containing polymer, the alkali metal-containing polymer includes a polymer chain, and the polymer chain includes a first group and a second group; (a) the first group is selected from an organic acid alkali metal group, an alcohol alkali metal group, or a combination thereof; (b) the second group is selected from an organic acid group; an alkali metal content in the first group is 50-100 ppm based on a total mass of the separator; and a hydrogen content in the second group is 10-50 ppm based on the total mass of the separator.

Abstract: Disclosed are a battery cell self-discharge current detection method, apparatus, and device, and a computer storage medium. The method includes: controlling a constant voltage source to start charging a battery cell at a first moment, and acquiring a first rate of change of a target current over time in a first preset duration after the first moment; controlling, in the case where the first rate of change is greater than a first threshold value, a constant current source and the constant voltage source to charge the battery cell; acquiring, in the case of reaching a second moment, a second rate of change of the target current over time in a second preset duration after the second moment, wherein the second moment is a moment when the time for charging the battery cell using the constant current source and the constant voltage source reaches a third preset duration; and determining.

Abstract: The disclosure provides a polyurethane-acrylate water repellant prepared by double bonds in the side chain, and belongs to the technical field of environment-friendly polymers. The disclosure introduces the carbon-carbon double bonds into the polyurethane side chain through a carbon-carbon double bond-containing dihydroxy micromolecular chain extender having a carbon chain structure to adjust the number of double bonds on a waterborne polyurethane chain segment participating in a free radical polymerization with acrylate monomers, thereby generating a branched structure, and improving the compatibility of polyurethane and acrylate; the fastness of a fabric is increased by combining an oxime blocking structure with the fabric. The polyurethane-acrylate water repellant prepared by the disclosure is non-toxic and low in VOC, and the finished fabric has significantly improved physical and chemical properties, and good application prospects.

Abstract: Disclosed are a battery cell self-discharge current detection method, apparatus, and device, and a computer storage medium. The method includes: controlling a constant voltage source to start charging a battery cell at a first moment, and acquiring a first rate of change of a target current over time in a first preset duration after the first moment; controlling, in the case where the first rate of change is greater than a first threshold value, a constant current source and the constant voltage source to charge the battery cell; acquiring, in the case of reaching a second moment, a second rate of change of the target current over time in a second preset duration after the second moment, wherein the second moment is a moment when the time for charging the battery cell using the constant current source and the constant voltage source reaches a third preset duration; and determining.

Abstract: A motor, a charging apparatus and a powertrain. The motor of the charging apparatus includes a rotor, a stator, a primary coil, and a secondary coil. The stator includes a stator core. The primary coil is wound around a yoke part of the stator core, and the primary coil is coupled to an external power supply. The secondary coil is wound around the yoke part of the stator core, and the secondary coil and the primary coil are wound around different groove structures inside the stator core. The primary coil and the secondary coil implement coupling voltage transformation through the stator core, to step up or step down an output voltage of the external power supply.

Abstract: A battery detection method and apparatus are provided. The battery detection apparatus includes: a voltage measurement module, configured to connect to a battery to be tested, and measure an open-circuit voltage of the battery to be tested; a processor, configured to obtain the open-circuit voltage; a constant voltage source, configured to input a test voltage to the battery to be tested under control of the processor after the battery to be tested stands for a preset time, the test voltage is the same as the open-circuit voltage; and a current measurement module, configured to measure an instantaneous current of the battery to be tested after the test voltage is inputted. The processor is also configured to obtain the instantaneous current and determine the self-discharge characteristic of the battery to be tested according to the instantaneous current and a preset current threshold.

Abstract: The present invention discloses a unit commitment method considering security region of wind turbine generators with frequency response control, and the main steps are: 1) determining security region of wind turbine generators when provides frequency response; 2) based on the security region of the wind turbine generators when provides frequency response, establishing a unit commitment model considering security region of wind turbine generators; and 3) calculating the unit commitment model considering the security region of the wind turbine generators by using mixed-integer linear programming method, and obtaining the operation result of the unit commitment considering the security region of the wind turbine generators with frequency response control. The present invention can be widely used in the setting of frequency response parameters of wind turbine generators dispatched in the prior art and the start-stop and output plans of synchronous generator.

Abstract: Provided are a method and apparatus for monitoring a PDCCH, and a base station and a user equipment. On a base station side, the method comprises: configuring an association relationship between a notification signal or signaling and a PDCCH; and sending the notification signal or signaling associated with the PDCCH to a user equipment to notify the user equipment to start monitoring the PDCCH. On a user equipment side, the method comprises: receiving a notification signal or signaling which is associated with a PDCCH and sent by a base station; and starting to monitor the PDCCH according to the notification signal or signaling associated with the PDCCH. By means of the present invention, the signaling overhead and the power consumption of a user equipment can be reduced.

Abstract: Provided are a method and apparatus for monitoring a PDCCH, and a base station and a user equipment. On a base station side, the method comprises: configuring an association relationship between a notification signal or signaling and a PDCCH; and sending the notification signal or signaling associated with the PDCCH to a user equipment to notify the user equipment to start monitoring the PDCCH. On a user equipment side, the method comprises: receiving a notification signal or signaling which is associated with a PDCCH and sent by a base station; and starting to monitor the PDCCH according to the notification signal or signaling associated with the PDCCH. By means of the present invention, the signaling overhead and the power consumption of a user equipment can be reduced.

Abstract: Method and device for allocating resources, UE, base station and readable storage mediums are provided. The method includes: after initial cell selection or cell reselection is completed in an idle state, acquiring position information of a first type of RB; acquiring reference point offset indication information from a base station, wherein the reference point offset indication information includes a frequency domain offset N of a reference point relative to a specified RB which is one of the first type of RB; calculating a frequency domain position of the reference point based on the position information of the first type of RB and the reference point offset indication information; when receiving scheduling information from the base station, determining an RB for receiving PDSCH based on the frequency domain position of the reference point and resource allocation information included in the scheduling information. Resource allocation efficiency in idle state is improved.