Abstract: A method for equalizing battery capacities of a vehicle includes: determining, based on a current capacity of a battery of each of carriages, a largest battery capacity and a corresponding first carriage thereof, and a smallest battery capacity and a corresponding second carriage thereof; determining, based on the largest battery capacity and the smallest battery capacity, a first traction force and a second traction force, where the first traction force is greater than the second traction force; and outputting a first control command including the first traction force to the first carriage, and outputting a second control command including the second traction force to the second carriage for equalizing battery capacities of the carriages of the vehicle.

Abstract: Disclosed are a low-cost high-efficiency drip irrigation system for a cotton field and a use method thereof. The drip irrigation system for a cotton field includes a filtering device and a water supply device; wherein the filtering device adopts different types of single filtering devices or combined filtering devices according to different water source types; the water supply device includes multiple stages of main pipes, submain pipes and laterals; the laterals (a drip irrigation tape with labyrinth on one side or a drip irrigation tape inlaid with emitters inside) are laid on the surface of the ground and located below a mulch film. The drip irrigation system adopts the design of large flow (1.5-3.4 L/h), slightly larger pipe diameter (>75 mm), low water pressure (operating pressure of drip irrigation tape being 0.03-0.07 MPa) and suitable drip irrigation uniformity (80%-90%).

Abstract: A staged cementing device includes a cylindrical body having an inner chamber. A circulating opening and a liquid inlet recess open to the inner chamber are arranged on a wall of the body. An opening assembly is arranged in the body, which has an opening sleeve and an opening seat located in the opening sleeve. Initially the opening sleeve is connected with the body through a first shear pin and covers the circulating opening, and the opening seat is connected with the opening sleeve through a second shear pin and covers the liquid inlet recess. A packer includes a packing valve body and a packer rubber. The packing valve body includes a flow channel in communication with the liquid inlet recess, and the packer rubber includes a liquid reservoir in communication with the flow channel. The second shear pin is sheared off in response to primary cementing procedure.

Abstract: A flow splitting device for gas reverse circulation drilling, including: an upper joint for connecting with a double-wall drill pipe; an inner tube which is arranged in the upper joint and defines a first passageway in communication with an inner chamber of the double-wall drill pipe, a second passageway in communication with an annular space in the double-wall drill pipe formed between the inner tube and the upper joint; a lower joint, having an upper end fixedly connected with the upper joint and a lower end for connecting with a drill tool; and a flow guiding member provided between the upper joint and the lower joint. A flexible sealing mechanism is provided outside the upper joint. The flexible sealing mechanism extends radially outward relative to the upper joint and the lower joint to form a sealing contact with a wellbore wall.

Abstract: The present application provides a gas inlet structure for a reagent kit, which includes a gas inlet connecting pipe and a plugging pipe arranged at one end of the gas inlet connecting pipe. The plugging pipe is provided with a gas nozzle plug, and the plugging pipe is in interference fit with the gas nozzle plug. The gas nozzle plug is provided with a gas inlet blind hole that is arranged along an axis direction of the gas nozzle plug, and an opening end of the gas inlet blind hole faces the gas inlet connecting pipe.

Abstract: The present application relates to the technical field of vehicle control, and in particular, to a driving world model based on a brain-like neural circuit. The driving world model includes: a perception module, an environment memory module, a brain-like neural circuit network module, and a convolutional network module; the perception module includes a two-dimensional feature encoding unit, a three-dimensional feature encoding unit, a summing pooling unit which are connected in sequence; the environment memory module is configured to acquire a current moment and memorize environment dynamics information; the brain-like neural circuit network module is configured to establish a brain-like neural circuit network. The present application uses a monocular camera image as an input image.

Abstract: The present invention provides a closed-loop online self-learning framework applied to an autonomous vehicle, and belongs to the technical field of automatic driving. The closed-loop online self-learning framework includes five data closed loop links, including: an Over-the-Air Technology (OTA) closed loop, an online learning closed loop, an algorithm evolution closed loop, a self-adversarial improvement closed loop, and a cloud coevolution closed loop.

Abstract: The present invention relates to a learning-oriented transferable automatic driving method and system driven by a world model. The method includes the following steps: constructing a simulation environment; collecting a large batch of data in the simulation environment, and collecting a small batch of data in the real environment; constructing a world model, and performing model training in the simulation environment by using the large batch of data, wherein the world model takes a camera image as an input to model an environment by using a generative world model; storing and transmitting historical moment information by hidden variables, and outputting an aerial view and a control instruction; and performing domain adaptive transferring training in the real environment on the basis of the small batch of data, and deploying the model in an autonomous vehicle in the real world to achieve virtuality-to-reality transferring general integrated automatic driving.

Abstract: Provided is a method for preparing a display substrate. The method includes: providing a substrate, the substrate including a plurality of pixel island regions spaced apart and a plurality of bridge regions connecting adjacent pixel island regions; forming thin film transistors and first signal lines in the pixel island regions, and forming first connecting bridges in the bridge regions; and forming second signal lines, second connecting bridges, and a source/drain layer on the substrate by a one-time patterning process.

Abstract: An adjustable platform for installing a wind turbine generator comprises an adjustable platform shell, the adjustable platform shell is installed on a hull, pile legs are connected vertically in the adjustable platform shell in a sliding way, a plurality of adjusting jacks are arranged on the pile legs, an electric plug-in component is arranged in the adjustable platform shell and used for fitting with the adjusting jacks. The fitting of electric plug-in component with the adjusting jacks of the pile legs replaces the bolted connection between the installation platform and the pile legs, and the electric power is used to replace the manual operation, solving the technical problems in the prior art that bolted connection is required between the installation platform and the pile legs, bolts are required to be removed manually before the pile legs sink, and the labor cost is greatly consumed.

Abstract: A lighting apparatus includes: a lamp body assembly, including a support base, a lampshade mounted on the support base, and a light-emitting body, a power supply module and a first connector that are connected to the support base, wherein the light-emitting body is electrically connected to the power supply module; a display assembly, including a carrier, a second connector connected to the carrier and facing the support base, and a display screen connected to the carrier, wherein the display screen is electrically connected to the power supply module; and a support assembly, connected to the first connector and the second connector.

Abstract: The present disclosure relates to a fingerprint identification method, device, an electronic apparatus and a storage medium. The fingerprint identification method includes: capturing a fingerprint by a fingerprint sensor, identifying matching pairs of minutiae between the captured fingerprint and a reference fingerprint; calculating a first matching result based on the minutia matching pairs; identifying minutia surrounding features for each minutia of the captured fingerprint in the minutia matching pairs; determining, for each minutia in the minutia matching pairs, whether the minutia surrounding features of the captured fingerprint match with minutia surrounding features of the reference fingerprint; calculating a second matching result based on the determination; and generating an identification result based on the first matching result and the second matching result.

Abstract: A lighting apparatus includes: a lamp body assembly, including a support base, a lampshade mounted on the support base, and a light-emitting body, a power supply module and a first connector that are connected to the support base, wherein the light-emitting body is electrically connected to the power supply module; a display assembly, including a carrier, a second connector connected to the carrier and facing the support base, and a display screen connected to the carrier, wherein the display screen is electrically connected to the power supply module; and a support assembly, connected to the first connector and the second connector.

Abstract: The present disclosure discloses a driver console and a rail vehicle including the driver console. The driver console includes: a console body, a display screen, a control console, and a mechanical mechanism. The display screen is movable between a first position and a second position relative to the console body. The control console is movable between a third position and a fourth position relative to the console body. When the display screen is at the first position and the control console is at the third position, the driver console is in a manned state. When the display screen is at the second position and the control console is at the fourth position, the driver console is in an unmanned state. According to the driver console of the present disclosure, the manned state and the unmanned state can be effectively compatible with both the manned state and the unmanned state.

Abstract: Glasses, a head-up display device and system, and an in-vehicle system for distortion calibration are provided, as well as a distortion correction method. The glasses include a first lens, a second lens, and a correction structure. The correction structure includes first and second standard plates and a polarizers having first and second polarization directions corresponding to the first and second lenses, respectively. The first and second standard plates are configured to enable the head-up display device to generate first and second correction images after receiving first and second distortion images of the first and second standard plates, respectively, based on the first and second distortion degrees of the first and second standard plates, respectively, and on an image to be displayed. The first polarized direction is perpendicular to the second polarized direction.

Abstract: A computer-implemented method of deploying a computing task to client computing apparatus is described. The method comprises identifying a plurality of alternative artificial intelligence modules which can accomplish the computing task, determining the settings of the client computing apparatus, and determining, based on the settings of the client computing apparatus and on the requirements specifications of the artificial intelligence modules, whether the client computing apparatus is capable of implementing one or more of the modules to perform the computing task. If so, the method includes selecting a module from among said one or more artificial intelligence modules and outputting, to the client computing apparatus, data enabling the client computing apparatus to implement the selected artificial intelligence module. A corresponding computer system, computer program and computer program product are described.

Abstract: Disclosed is a control device querying a preset data set to obtain color vision sensitivity information corresponding to acquired identity information of a user of the augmented reality device; the control device judging whether the user is a color recognition disorder patient according to obtained color vision sensitivity information; the control device acquiring a personalized color display mode corresponding to the color vision sensitivity information as a target color display mode when the user is judged as a color recognition disorder patient; and the control device providing the augmented reality device with the target color display mode so that the augmented reality device employs the target color display mode to display an image.

Abstract: Various example embodiments are directed to a fingerprint authentication method and a fingerprint authentication device. The fingerprint authentication method includes acquiring target fingerprint data of a user using at least one fingerprint sensor, determining a preliminary authentication result of the target fingerprint data based on at least one historical fingerprint data stored in memory, performing a matching check on the preliminary authentication result, and determining a final authentication result of the target fingerprint data based on results of the matching check.

Abstract: A head-up display device and a display method thereof are provided. the head-up display device includes: an image source configured to generate and emit light having image information; a first polarization control device configured to receive the light and convert the light into a first polarized light or a second polarized light having a polarization direction different from a polarization direction of the first polarized light; and a focal length switching device configured to transmit the first polarized light and the second polarized light and have different deflection effects on the first polarized light and the second polarized light, such that the first polarized light and the second polarized light passing through the focal length switching device are projected onto a projection screen to respectively present virtual images which are at different distances from the projection screen.