137results about How to "Reduce excess space" patented technology

The invention belongs to the technical field of image classification neural networks, and discloses a lightweight image classification neural network architecture system based on knowledge distillation. The invention provides a lightweight image classification neural network architecture system based on knowledge distillation. The lightweight image classification neural network architecture system comprises a data set preprocessing module, a teacher model preprocessing module, a subnet model construction module, a personalized training module, a real loss calculation module, a distillation loss calculation module, a total loss calculation module and a student model construction module. The invention provides a lightweight neural network architecture system based on knowledge distillation, and designs a brand new training mode by using the superiority of knowledge distillation for teacher model weight extraction: the knowledge distillation of teacher and student models is combined with a deep compression method; the system for constructing the lightweight network can be used for training various complex image classification neural networks so as to improve the network performance.

The invention discloses a full-automatic screening and detecting machine table for chips, which achieves full-automatic feeding, comprehensively detects the chips and ensures that the quality of the screened chips is stable and reliable. The invention relates to a wafer sorting machine, which comprises a rack, the rack comprises a working table and a top support, the working table of the rack is provided with a wafer caching and grading module and a chip detection assembly, and the top support is provided with a first wafer carrying module and a second wafer carrying module; the automatic feeding and multi-material-box caching transmission frame comprises a material box placing frame and a material box transferring mechanism which are arranged in a stacked mode, a top-layer LP platform of the material box placing frame is used for being in butt joint with a crown block and placing the material boxes or enabling the crown block to take away the material boxes, at least one layer of the material box placing frame is a wafer taking and placing station, and at least one layer of the material box transferring mechanism is a wafer taking and placing station. At least one layer of the material box placing frame is a material box buffering area, and the material box transferring mechanism is used for transferring material boxes at all positions.

The invention belongs to the technical field of battery positive electrode preparation, and particularly relates to a mixed coating coated nickel-rich layered oxide positive electrode and application thereof. The mixed coating coated nickel-rich layered oxide positive electrode is an NCM system positive electrode material, and the proportion of a Ni material in an NCM ternary system is greater than or equal to 92 wt%; the ratio content of Ni of the nickel-rich layered oxide positive electrode coated with the mixed coating in three elements of Ni, Co and Mn is greater than or equal to 92 mol%; and the nickel-rich layered oxide positive electrode coated with the mixed coating is coated with Li3PO4 and / or Li3BO3 and / or LiNbO3. The positive electrode material provided by the invention can effectively reduce the space charge layer effect and interface side reaction between the positive electrode and the electrolyte, the lithium ion migration efficiency is high, and the cycle performance of the assembled battery is good.

The invention provides a wafer bonding device and a wafer bonding method, and relates to the technical field of semiconductor processing. The wafer bonding device comprises a carrying seat, a driving structure arranged on the carrying seat, and a target chuck and a bearing chuck which are arranged along the Z direction, at least one of the target chuck and the bearing chuck is in transmission connection with the driving structure, and the driving structure is configured to be capable of driving the target chuck and the bearing chuck to relatively move along the X-Y direction and the Z direction; a plurality of notches are formed in the edge of the target chuck; the carrying base is provided with a plurality of visual systems, the visual systems are located on the side, away from the bearing chuck, of the target chuck, the axial direction of the visual systems is consistent with the Z direction, the visual systems correspond to the notches one to one, and the visual systems are configured to shoot images, corresponding to the notches, of the wafers loaded on the target chuck and the bearing chuck. The wafer bonding device is good in wafer bonding quality, high in yield, small in size and small in occupied space.

The invention discloses an air bridge balance air inlet and return system integrated structure, a design method and an assembly method, and belongs to the technical field of wind tunnel tests. The wind tunnel model structure design problem caused by the fact that an air bridge balance air inlet and return system is difficult to integrally arrange due to insufficient model space is solved. Two high-pressure air inlet pipelines and two low-pressure air return pipelines of the air bridge pipeline are embedded into a fuselage force-bearing piece in a gooseneck type air bridge layout form, the high-pressure air inlet pipelines are connected with a flow control unit, the flow control unit is connected with a ventilation wing, the ventilation wing is connected with the low-pressure air return pipelines, and the low-pressure air return pipelines are connected with the low-pressure air return pipelines. And the high-pressure air inlet pipeline, the low-pressure air return pipeline and the internal strain balance are respectively connected with the supporting piece. According to the air bridge balance air inlet and return system integrated structure, the design method and the assembly method, the technical capability of power simulation wind tunnel tests such as a TPS nacelle and an air motor driving propeller can be remarkably improved, and the air bridge balance air inlet and return system integrated structure plays an important role in improving the applicability and reliability of an air inlet and return air bridge system.

The invention provides an iterative least square artificial magnetic field positioning method and device not affected by attitudes, belongs to the field of indoor positioning, and aims to solve the problem of complexity increase caused by carrier attitudes, adopts an artificial magnetic field positioning observation equation establishment method not affected by attitudes, avoids introduction of unknown quantity of attitudes in a mode of solving a model according to frequency, and improves the positioning accuracy. Establishing a simplified observation equation based on a magnetic induction intensity module value so as to reduce the number of nonlinear unknown quantities of an equation set and play a role in reducing a search space and the number of local optimal solutions for a subsequent optimization solution thought; aiming at a nonlinear equation solving problem in a position solving process, an algorithm for carrying out positioning inversion solution according to iterative least square is given, linear expansion is continuously carried out at an iteration point by taking a model of a difference between a minimum state quantity and a real-time observed quantity as a target, and iterative calculation is carried out by utilizing the least square. According to the method, global optimal and high-convergence-speed high-precision position solving is realized.

The invention discloses a tight-lock coupler intelligent tensile testing machine and a testing method thereof, and belongs to the technical field of tight-lock coupler test.The tight-lock coupler intelligent tensile testing machine comprises a mounting bottom plate and an electric control cabinet, and a support for supporting a tight-lock coupler to be detected is mounted on the surface of the mounting bottom plate; a tensile connecting frame for connecting the tight-lock coupler is mounted on the surface of the bottom plate on one side of the support, an integrated design of'tensile force detection and visual detection 'is innovatively adopted, mechanical parameter acquisition and visual deformation observation are combined, traditional mechanical data such as tensile force and displacement are obtained, and visual characteristics such as fine deformation and crack initiation are captured; precise synchronization of pulling force application, displacement collection and camera shooting is achieved through the synchronous controller, the real-time corresponding relation of pulling force-displacement-visual deformation is established, the problems that an existing device is single in detection dimension and poor in data relevance are solved, and the potential quality hazard checking capacity and the persuasion of a detection result are improved.

The invention discloses an emergency valve, a hydraulic system and engineering machinery. An oil port 1 of a main overflow valve is connected with an oil port P, and an oil port 2 of the main overflow valve is connected with an oil port T; the oil port P is connected with the oil port C, the oil port 1 of the sequence valve is connected to an oil way between the oil port P and the oil port C, the oil port 2 is connected with the oil port D, and the oil port 3 is connected with the oil port T; an oil port 2 of the pressure buildup switch is connected with an oil port P and an oil inlet of the hand-operated direction valve, and an oil port 1 of the pressure buildup switch is connected with an oil port T; an oil outlet of the manual reversing valve is respectively connected with the oil port A and the oil port B; an oil port 1 of the pressure reducing valve is connected with an oil port X, an oil port 2 of the pressure reducing valve is connected with an oil port 2 of the shuttle valve, an oil port 3 of the pressure reducing valve is connected with an oil port T, the oil port 1 of the shuttle valve is connected to an oil way between an oil outlet of the hand-operated direction valve and an oil port A, and the oil port 3 of the shuttle valve is connected to an oil way between the oil outlet of the hand-operated direction valve and an oil port B; according to the invention, after an upper vehicle power system fails, the crane can realize full-action emergency and emergency collection.

The embodiment of the invention discloses an image data acquisition method, a storage medium and an image acquisition device, and belongs to the field of image processing. Through a double-lens orthogonal synchronization mode, that is, when the first image sensor (sensor0) outputs half-frame data, the synchronization pulse signal is triggered to control the second image sensor (sensor1) to start to output frame data of the second image sensor (sensor1), so that accurate and synchronous acquisition of image data of the two sensors is realized. According to the synchronization mode, the problem of data coverage possibly occurring under the condition that each sensor only has a single buffer area is avoided, and data output of the two sensors is carried out alternately, so that the integrity and accuracy of data are ensured.

The invention discloses polymer-based anti-crack concrete and a preparation method thereof, and relates to the technical field of concrete. When the polymer-based anti-crack concrete is prepared, acrylic acid is grafted on the surfaces of pretreated polypropylene particles to prepare modified polypropylene particles; coating sodium metasilicate with sodium alginate to prepare a self-repairing microcapsule; the preparation method comprises the following steps: hydrolyzing 3-glycidyl ether oxypropyl trimethoxy silane, and grafting the hydrolyzed 3-glycidyl ether oxypropyl trimethoxy silane on the surface of silicon dioxide to prepare modified silicon dioxide; mixing the modified polypropylene particles, basalt fibers and polyacrylonitrile fibers to obtain a solid functional component; cement, slag powder, silica fume, an expanding agent, a solid functional component, modified silicon dioxide, a water reducing agent, an air entraining agent, deionized water, river sand, gravel and the pre-wetted self-repairing microcapsule are mixed, and the polymer-based anti-crack concrete is prepared. The polymer-based anti-crack concrete prepared by the invention has excellent anti-crack, freeze-thaw-resistant and self-repairing properties.

The invention discloses a data processing method. The method comprises the steps of obtaining a target data type; based on a target data type, determining preparation data corresponding to the target data type; collecting target data based on the change rate of the preparatory data; and compressing the collected data, and sending the compressed data to the cloud. The data acquisition process of the vehicle end is accurately controlled through the cloud end, unnecessary data uploading is reduced, the pressure of network bandwidth is reduced, and meanwhile storage resources of the vehicle end are saved. The sampling frequency is flexibly adjusted according to the actual change condition of the data and the network condition, uploading of a large amount of redundant data is avoided, and the data transmission efficiency is improved. By compressing the collected data, the space and time required for data transmission are reduced, and the pressure of network bandwidth is further relieved.

The utility model belongs to the technical field of vehicle thermal management, and discloses an all-in-one control device and a thermal management system.The all-in-one control device comprises a controller body, a compressor and a heater, a first interface of the controller body is electrically connected to an expansion valve, and a second interface of the controller body is electrically connected to a water pump; the controller body can control the water pump to work and output high-voltage electricity or low-voltage electricity to supply power to the water pump and can also control the expansion valve to work and output low-voltage electricity to supply power to the expansion valve, the compressor and the controller body are integrated, the heater and the controller body are integrated, and the compressor and the heater are both electrically connected with the controller body. The controller body can control the compressor and the heater to work and output high-voltage electricity to supply power to the compressor and the heater, so that not only can a single device be controlled to work, but also all devices can be controlled to work at the same time, the cost of the controller is reduced, the total weight and occupied space of the thermal management system are reduced, the number of connecting wire harnesses and connectors can be reduced, and the integration level is higher.

The utility model discloses a fixing assembly and air outlet equipment, the air outlet equipment comprises a panel, an air opening assembly and the fixing assembly, and an air outlet is formed in the panel; the air port assembly is exposed out of the air outlet; the fixing assembly is used for installing the air opening assembly on the panel in a rotatable mode. According to the fixing assembly and the air outlet equipment, the structural arrangement of the air outlet equipment is more reasonable, and better air outlet performance can be achieved.

The invention provides a data recording method and device, a storage medium and electronic equipment, and the method comprises the steps: continuously recording and caching a group of data frames of a specified data stream; continuously monitoring each specified data stream to judge whether a preset triggering condition corresponding to each specified data stream is met or not based on the data frame of each specified data stream; the preset trigger condition corresponding to each specified data stream indicates that each specified data stream contains an abnormal data event; under the condition that a preset triggering condition corresponding to a target data stream is determined to be satisfied based on a first data frame of the target data stream in the group of specified data streams, determining a target time interval in which the target data stream is about to fall into a disk; the data frames of the target data stream in the target time interval are extracted from the cached data frames of the set of specified data streams, the to-be-stored data are obtained, the to-be-stored data are stored in the database, and the problem that the IO resource overhead cannot be reduced while the data integrity cannot be guaranteed in the prior art is solved.

This invention belongs to the field of nuclear magnetic resonance technology and discloses a compact superconducting coil heat transfer structure and a liquid helium-free superconducting magnet. The compact superconducting coil heat transfer structure, applied to a liquid helium-free superconducting magnet, includes a tubular superconducting coil winding frame. A flattened superconducting coil assembly is wound around the outer surface of the superconducting coil winding frame via grooves. A heat transfer plate is provided on the outer side of the superconducting coil winding frame, and an end-face heat-conducting plate is provided at each end of the superconducting coil winding frame. Each end of the heat transfer plate is connected to the corresponding end-face heat-conducting plate, and a heat transfer metal plate is connected to both end-face heat-conducting plates. The heat transfer metal plate is in contact with the superconducting coil assembly to form a closed heat transfer loop. This invention has a compact overall structure and, through the heat transfer plates, significantly reduces the risk of excitation quench, improving the ease of use and stability of the equipment.

The invention relates to a high-selectivity ilmenite flotation process, belongs to the technical field of flotation, and aims to solve at least one of the problems of poor ilmenite selectivity, poor collecting performance and the like in the conventional flotation method. According to the ilmenite flotation process, the collecting agent of a specific structure is selected, the two hydroximido groups and the two imino groups are introduced into the same molecular structure, and the binding capacity between the collecting agent and metal ions can be improved through a solid-loving group composed of the two hydroximido groups; the adsorption stability of the whole collector molecules on the surface of the mineral is enhanced, and the collecting performance and selectivity of the collector molecules are improved; meanwhile, a plasma pretreatment method is adopted for the raw ore, the surface structure of the ore is changed, impurities on the surface of the ore are reduced, the reaction activity of the surface of the ore is enhanced, and the surface property difference between the ilmenite and forsterite is improved, so that collecting agent molecules can chemically react with the surface of the ilmenite under the weak acid condition, and the flotation separation efficiency of the ilmenite is improved; and the consumption of sulfuric acid is reduced.

The invention discloses a direct cooling type energy storage heat management system with multiple refrigerating circuits. The direct cooling type energy storage heat management system comprises a first refrigerating module, a second refrigerating module, a cooling module and a control module. Wherein the first refrigeration module is sequentially provided with a compressor, a first condenser and a first throttling element in the flow direction of a refrigerant working medium, the second refrigeration module and the first refrigeration module are arranged in parallel, and the second refrigeration module is sequentially provided with a second condenser and a fluorine pump in the flow direction of the refrigerant working medium. The cooling module is communicated with the first refrigeration module and the second refrigeration module and comprises a first direct cooling plate and a second direct cooling plate which are arranged on the two opposite sides of the module to be cooled respectively. The control module is used for controlling starting, closing and flow of the first refrigeration module and the second refrigeration module according to the heat exchange quantity requirement. And different refrigerating circuits are selected according to different heat exchange quantity requirements, so that the power consumption can be reduced while the heat exchange quantity is ensured.

The present disclosure provides a method for measuring DC bias aging characteristics of a multilayer capacitor, the method comprising: applying a first polarization voltage to the multilayer capacitor, the multilayer capacitor comprising a body and an external electrode, a body having a dielectric layer including a plurality of dielectric grains and internal electrodes disposed alternately with the dielectric layer in a first direction, the external electrodes disposed on the body; maintaining the first polarization voltage for a first time period (t1); applying a DC bias voltage lower than the first polarization voltage; maintaining the DC bias voltage for a second time period (t2); and measuring a saturation capacitance after the DC bias voltage is applied.

The present invention relates to the field of mobile robot positioning processing technology, and in particular to an augmented reality environment modeling and positioning processing method for a mobile robot. The method comprises the following steps: obtaining sensor configuration monitoring parameters; collecting environmental image data of the monitoring sensor according to the sensor configuration monitoring parameters to generate environmental image data; modeling and processing an environmental measurement physical model based on the environmental image data to obtain an environmental measurement physical model; performing fused point cloud prior map analysis based on the environmental measurement physical model to obtain generated fused point cloud prior map data; analyzing inter-frame moving feature point matching data through fused point cloud prior map data; and performing mapping and positioning operations of the mobile robot based on the fused point cloud prior map data and inter-frame moving feature point matching data. The present invention realizes accurate mapping and positioning of the mobile robot in the dynamic process by expanding the monitoring information of the mobile robot.

The invention relates to a brake system (20) and a brake system providing method, in particular to a brake system and a brake system providing method for a brake system of a road vehicle. Disclosed is a brake system for a vehicle, comprising: a rotary brake element (22) fixedly connected to a wheel or a hub in a co-rotation manner with the wheel; a stationary braking element (24, 26) fixedly connected to the vehicle chassis; a brake actuator (38, 40) configured for actuating the stationary brake element (24, 26) to press the stationary brake element (24, 26) against the rotary brake element (22); a lever (32) configured such that the lever transmits a force exerted by the brake actuator (38, 40) to the fixed brake element (24, 26), in which the pivot axis of the lever (32) is parallel to the plane of rotation of the rotary brake element (22) and perpendicular to a horizontal caliper plane, which is a plane oriented tangentially to the rotary brake element (22), and the actuator axis is parallel to the plane of rotation and the horizontal caliper plane.

The utility model discloses an electronic atomization device. Belongs to the technical field of aerosol generation. In the electronic atomization device, the first circuit board is electrically connected with the second circuit board by electrically connecting the plurality of elastic pins with the elastic sheets respectively, so that the first circuit board is perpendicular to the second circuit board, the distance between the first circuit board and the second circuit board is effectively shortened, and the electronic atomization effect is improved. The first circuit board electrically connected with the elastic pieces can be tightly attached to the interior of the shell of the corresponding atomization module, so that the overall size of the atomization module is compressed, or the second circuit board electrically connected with the elastic pieces can be tightly attached to the interior of the shell of the corresponding power supply module, so that the overall size of the power supply module is compressed; and the overall size of the electronic atomization device is miniaturized by compressing the overall size of the atomization module or compressing the overall size of the power supply module, so that the packaging cost, the occupied transportation space and the transportation cost can be reduced, and a user can hold and carry the electronic atomization device conveniently.

This invention discloses an integrated refrigeration and air compression compressor unit and a refrigeration system. The integrated refrigeration and air compression compressor unit includes a refrigeration compressor, an air compressor, a motor, and a clutch. The motor has an output shaft; one end of the output shaft is connected to the refrigeration compressor or the air compressor, and the other end is connected to the air compressor or the refrigeration compressor via the clutch. In the refrigeration system, a cooling branch is provided to cool the intake air of the air compressor, reducing the exhaust temperature after compression, thereby significantly reducing the operating temperature of the air compressor, improving its reliability, and extending its lifespan. This invention has a simple structure and lower cost.

The present invention discloses a method for constructing a behavior signature of an IoT device. First, the mixed traffic captured by the gateway is processed, the traffic data packet information is extracted, and the traffic of various behaviors is segmented from the session level. Then, the packet-level information such as the length, time interval, and protocol type of the traffic data packet is extracted, and the frequency of occurrence is calculated to construct a characteristic vector of the behavior. DBSCAN clustering is used to obtain respective clusters of different behaviors, and a signature of the behavior is automatically constructed from each behavior cluster. The signature consists of ordered data packet header information and statistical features, and contains key information for distinguishing similar device behaviors. The present invention can automatically process mixed traffic, construct signatures of different behaviors, and has extremely high unique identification.

The invention relates to the technical field of battery containers, in particular to a container type control room and energy storage battery cabin combined heat management system and method.The system comprises a refrigerant loop and a secondary refrigerant loop which can conduct heat transfer, and the refrigerant loop is connected to the inner side and the outer side of a control room in series to adjust the temperature and humidity of the control room; the secondary refrigerant loop is connected with the battery cluster in the battery cabin and is used for adjusting the temperature of the battery cluster; the refrigerant loop comprises an indoor unit and an outdoor unit which are connected in series, the indoor unit is arranged in the control room, the outdoor unit is arranged outside the control room, and an outdoor unit assembly can exchange heat with the secondary refrigerant loop; the battery compartment and the control chamber are arranged in the container. The mechanism is compact, the battery cabin heat management loop and the control room heat management loop are fused, energy cross-region transfer can be achieved, and cold or heat can be flexibly distributed according to the real-time temperature control requirements of the battery and the control room.

The application discloses a GaAs-based low-capacitance high-bandwidth PIN photodiode and a preparation method thereof, and relates to the technical field of semiconductors.The PIN photodiode comprises a GaAs substrate, a deformation growth layer and an InP-based PIN functional layer.The deformation growth layer is used for realizing the lattice constant transition from the GaAs substrate to the InP-based PIN functional layer.The InP-based PIN functional layer comprises an n-type contact layer, a first intrinsic layer, an intrinsic absorption layer and a window layer, and the first intrinsic layer is provided with an ion implantation modification area, which is used for forming a high-resistance area to reduce the effective electrical junction area of the device.The application realizes the heterogeneous integration of the GaAs substrate and the InP-based PIN functional layer through the deformation growth layer, significantly reduces the device cost, realizes the physical decoupling of the photosensitive area and the electrical junction area through the ion implantation modification area, and significantly reduces the intrinsic junction capacitance while maintaining a large optical aperture, thereby systematically solving the inherent contradiction among the bandwidth, the responsivity and the cost in a high-speed PIN-PD.

The utility model relates to the technical field of shared equipment, in particular to a coin box of a charging washing machine, which comprises a washing machine body, a coin slot is arranged on the right side of the front end of the washing machine body, a box opening limiting device is arranged at the front end of the washing machine body, and the box opening limiting device is arranged in the coin slot. A coin box which can be pulled out in a sliding mode is arranged in the box opening limiting device. When the coin box is used, the box cover and the coin box body are inserted into the box groove, and the coin box is pushed into the box groove through the groove opening of the box groove subjected to fillet processing, so that a corresponding concave embedded coin box mounting structure is formed, the collision and interference of the external environment to the coin box are reduced, and the inconvenience of damage and extra space occupation is reduced.

The invention provides a binary file execution method and device and electronic equipment. The method is applied to a byte code interpreter. The method comprises the following steps: reading a byte code instruction to be executed currently from a binary file; when it is determined that the byte code instruction is a method calling instruction, reading a first index of a to-be-called method corresponding to the byte code instruction, and determining a method instance corresponding to the to-be-called method; if the to-be-called method is an import method, obtaining signature analysis parameters of the to-be-called method, and pressing the signature analysis parameters into an operand stack; setting a first stack frame structure corresponding to a method to be called, calling a native method, writing a return value of the native method into a stack frame, and recovering a calling function instance; in the native method, parameter type checking and parameter transmission are synchronously carried out; otherwise, executing according to a processing flow of a non-import method. The execution method can be applied to embedded equipment with limited resources, and the running performance of the application is improved.

The invention provides a paving device for bridge repair, and belongs to the technical field of bridge repair, the paving device comprises hoppers, the hoppers are symmetrically arranged, triangular plates are fixedly connected to the outer walls of the hoppers, mounting bottom plates are fixedly connected to the outer walls of the triangular plates, and symmetrically distributed rotating seats are fixedly connected to the outer wall of the triangular plate located on the left side. According to the bridge repairing material mixing device, input materials are contained through the arranged hopper, the rotating rod rotates to drive the stirring rod to rotate, then the repairing materials are stirred, the uniformity of the materials is guaranteed, then the materials are conveyed to a paving area through the conveying pipe and other related components, and the bridge repairing materials are prevented from being separated before being used; and the quality of the repairing material is further optimized, the repairing material is more evenly laid in the paving area in cooperation with a conveying pipe, the repairing quality is improved, and the problems that in the prior art, most of traditional bridge repairing paving devices only have a single paving function, and pretreatment on the repairing material is lacked are solved.

The present invention relates to a closing surge suppression device for reactive compensation in the field of reactive compensation in distribution networks. The device is installed on the incoming line side of a capacitor group for reactive compensation, and includes a voltage transformer, a current sensor, a circuit breaker, a fast switch, a phase control device, and a controller. When the capacitor group needs to be put into operation, the capacitor group can be put into operation by first closing the circuit breaker, so that the surge generated when closing the circuit breaker is first suppressed by the phase control device; then the fast switch is closed to exit the phase control device, and the capacitor group remains in operation. In the case of presetting multiple protection branches, each protection branch is connected to a control device respectively, and the control device can realize automatic control by using the size of the closing surge current, so that a corresponding number of protection branches can be put into operation as needed in the process of eliminating the surge peak.