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122results about How to "Improve system efficiency" patented technology

Industrial equipment real-time monitoring system based on edge computing

The invention discloses an industrial equipment real-time monitoring system based on edge computing, and the system comprises the following steps: collecting, processing and analyzing the operation data of industrial equipment through distributed edge computing nodes, constructing a node cooperation mechanism, and completing the processing of the data; the dynamic data scheduling module is used for dynamically optimizing a data transmission path and task allocation according to node performance; the intelligent model dynamic migration module is used for adjusting lightweight model deployment in combination with node resource conditions; the multi-modal fault sensing module is used for extracting and analyzing multi-modal features by using a cross-node collaborative algorithm; the edge node self-adaptive management module is used for adjusting node operation parameters in real time and repairing an abnormal state; and the equipment relevance reasoning module is used for constructing an equipment relevance model through a graph calculation method and generating a real-time relevance graph. According to the method, efficient monitoring and anomaly detection of industrial equipment are realized through resource optimization and intelligent analysis of collaborative edge computing nodes.
Owner:ZHEJIANG XIAOQU INFORMATION TECH CO LTD

Memory chip access control method and device, storage medium and electronic equipment

The invention discloses a memory chip access control method and device, a storage medium and electronic equipment. Comprising the steps that first delay time for responding to an activation command when a memory chip conducts data access is obtained, and the first delay time is used for representing the time interval between sending of the activation command to the memory chip and responding of the activation command by the memory chip; second delay time for responding to a target command except the activation command when the memory chip performs data access is obtained, and the second delay time is used for representing a time interval between sending of the target command to the memory chip and response of the memory chip to the target command; a first target timing parameter of the memory chip is adjusted based on the first delay time and the second delay time, and the first target timing parameter is used for determining the target time for accessing the memory chip. The technical problem that the data read-write efficiency of an operating system is low due to the fact that the time of the activation command is not adjusted when the line address is checked through the activation command in the prior art is solved.
Owner:WENZHOU SILK ROAD KUNPENG MICROELECTRONICS CO LTD

A motor and planetary reducer integrated device and manufacturing method thereof

The present invention discloses an integrated device of a motor and a planetary reducer and a manufacturing method thereof, and the technical scheme thereof includes: a casing, a motor assembly and a planetary reducer assembly, the casing is provided with mounting cavities for the motor assembly and the planetary reducer assembly respectively, the motor assembly and the planetary reducer assembly are matched in transmission, and a cooling structure is provided on the outer circle of the casing. The manufacturing method mainly processes the casing, the stator core is installed on the casing, the rear end cover of the motor is fixed on the casing, the rotor of the motor is first installed on the front end cover inside the motor, and then pressed into the stator, the sun gear of the planetary reducer is installed on the motor shaft, and the gear lubricating oil is added through the planetary gear oil filling port on the casing, and the coolant needs to be introduced into the casing during operation. The entire technical scheme has a compact structure, simple transmission, and convenient maintenance, and the system efficiency, rotation accuracy, position accuracy and service life are greatly improved, and the heat generation and operating noise are greatly reduced.
Owner:杭州威灵自动化科技有限公司

Thermal management module, thermal management system and vehicle

The utility model discloses a thermal management module, a thermal management system and a vehicle, the thermal management module comprises a thermal management assembly and a flow channel plate, a thermal management element is arranged on the flow channel plate, and a part of the structure of the flow channel plate becomes one part of a shell of the thermal management element. According to the heat management module provided by the utility model, the partial structure of the runner plate is used as the partial shell structure of the heat management element, namely, the runner plate is used as a part of the heat management element, so that the repeated design of the shell is avoided, the use of shell materials is reduced, and the cost is reduced.
Owner:BYD CO LTD

Fuel cell commercial vehicle power system and intelligent power distribution control method thereof

The invention provides a fuel cell commercial vehicle power system and an intelligent power distribution control method thereof. The system comprises a controller, a fuel cell, a power cell, a load motor, an inverter and a DC / DC converter. The controller is connected with the fuel cell and the power cell, and the fuel cell is in line connection with the power cell; the fuel cell is connected with the load motor through the inverter; the power battery is connected with the inverter through the DC / DC converter; and a detection module is arranged in the controller. Through intelligent power distribution and auxiliary power output, the burden of the fuel cell during rapid power change is reduced, frequent power fluctuation of the fuel cell is reduced, and the service life of the fuel cell is prolonged. And the power battery quickly responds to the power change through the DC / DC converter, so that the fuel battery always keeps high-efficiency operation, and the overall system efficiency is improved.
Owner:FOSHAN UNIVERSITY

Reinforced heat supply system based on cascade heat storage device

ActiveCN119665449AIncrease heat storage rateHigh liquid phase rateSolar heating energySolar heat storageWater useCollector device
The invention discloses an intensified heat supply system based on a cascade heat storage device, and belongs to the technical field of domestic heat supply systems, the intensified heat supply system comprises a phase change heat storage device and a water tank which are arranged indoors, and a solar heat collector arranged outdoors, and the solar heat collector is communicated with the two ends of a heat charging pipe of the phase change heat storage device through pipelines respectively; the water tank is respectively communicated with heat release pipes of the phase change heat storage device through pipelines; the heat charging pipe is of an approximate heart-shaped structure; the water tank is communicated with a domestic water inlet and a heat user side outlet, and an auxiliary electric heating device is arranged in the water tank. The enhanced heat supply system based on the cascade heat storage device is simple in structure, high in solar energy utilization rate and capable of guaranteeing efficient hot water supply under different weather conditions.
Owner:LANZHOU UNIVERSITY OF TECHNOLOGY

Heterogeneous computing power network power supply scheduling method based on carbon intensity and related device

The invention discloses a heterogeneous computing power network power supply scheduling method based on carbon intensity and a related device, and the method comprises the steps: obtaining the carbon intensity at a current moment in a preset time period; receiving power use state information from the heterogeneous computing power network nodes in real time; generating a newest power supply scheduling scheme of the heterogeneous computing power network according to the carbon intensity and the power use state information, so that the carbon emission generated by executing the newest power supply scheduling scheme is less than or equal to a carbon emission budget; the latest power supply scheduling scheme comprises the power supply quantity allocated to each heterogeneous computing power network node for deep learning operation; and according to the latest power supply scheduling scheme, distributing power supply quantity for the deep learning operation of each heterogeneous computing power network node. Through algorithm optimization and resource allocation, carbon emission minimization in the power supply process is realized, system efficiency and environmental protection are improved, low-carbon transformation of the society is promoted, and the method has important significance and value.
Owner:HUBEI CENT CHINA TECH DEV OF ELECTRIC POWER

Design method of cable connection mode in photovoltaic power generation project and related product

The invention provides a design method of a cable connection mode in a photovoltaic power generation project and a related product. The design method of the cable connection mode in the photovoltaic power generation project comprises the steps of obtaining a photovoltaic panel design scheme of the photovoltaic power generation project; reading the specification, number, arrangement mode and accessed inverter parameters of photovoltaic units in a photovoltaic array in the photovoltaic panel design scheme; determining the number of the photovoltaic units connected in series in each photovoltaic string according to the specifications and the number of the photovoltaic units and the parameters of the inverter; generating a to-be-selected wiring scheme according to the arrangement mode and the number of the photovoltaic units connected in series in each photovoltaic string; and simulating the to-be-selected wiring scheme, selecting the to-be-selected wiring scheme with the optimal simulation result, and combining the to-be-selected wiring scheme with the photovoltaic panel design scheme to form an overall scheme of a photovoltaic power generation project. According to the scheme, automatic design of the cable connection mode in a photovoltaic power generation project is achieved, the design efficiency is improved, the power generation efficiency of photovoltaic power generation can be improved, and the requirements of construction owners are met.
Owner:HAIER ENERGY TECHNOLOGY CO LTD

Data assimilation analysis system based on object-oriented framework

The invention discloses a data assimilation analysis system based on an object-oriented framework, and the system comprises the steps: obtaining assimilation parameters, defining an analysis variable space for the assimilation parameters through an unstructured grid framework module, and carrying out the distribution collection and boundary exchange calculation through a geometric grid and parallel algorithm communication module MPDD, a control variable, an observation variable, a covariance matrix, various transformation operators and a solver module are constructed, a multivariable price function and a price function gradient are established, the system transmits the multivariable price function and the price function gradient to a universal minimization solver, an analysis field is made to approach an observation result through iterative solution, and the price function gradient is obtained. Other points except the observation position are diffused outwards in the mode of the covariance matrix to influence other mode grid points, and an assimilation analysis field result is obtained. According to the method, rapid expansion and easy replacement of various different space variables, observation operators, covariance matrix schemes, multivariable solvers and the like are realized, and the flexibility and adaptability of a data assimilation analysis system are improved.
Owner:GUANGDONG HONG KONG MACAU GREATER BAY AREA WEATHER RESEARCH CENTER FOR MONITORING WARNING AND FORECASTING (SHENZHEN INSTITUTE OF METEOROLOGICAL INNOVATION)

Charging and discharging control method and device, computer device and storage device

The invention belongs to the technical field of charging and discharging control, and particularly relates to a charging and discharging control method and device of an energy storage system, a computer device and a storage device. If the current current is greater than the first current threshold value, acquiring the current allowable maximum charging current of the battery, and judging whether the current allowable maximum charging current is greater than the minimum charging current or not; if yes, the battery is controlled to be charged with the minimum charging current; if not, the battery is controlled to be charged with the currently allowed maximum charging current; if the current current is smaller than the second current threshold value, the current allowable maximum discharge current of the battery is obtained, and whether the current allowable maximum discharge current is larger than the minimum discharge current or not is judged; if yes, controlling the battery to discharge at the minimum discharge current; and if not, controlling the battery to discharge at the current allowable maximum discharge current. The charging and discharging control method can effectively reduce the loss of the energy storage system, improve the system efficiency and further improve the income of a user.
Owner:SHENZHEN RUIHENG DIGITAL ENERGY TECHNOLOGY CO LTD

Heterogeneous system performance bottleneck monitoring and tuning method and device based on AI, equipment and medium

The invention discloses an AI (artificial intelligence)-based heterogeneous system performance bottleneck monitoring and tuning method, device, equipment and medium, belongs to the technical field of performance testing and tuning, and aims to solve the technical problem of how to analyze and predict the performance bottleneck of a heterogeneous system in real time through artificial intelligence so as to propose targeted optimization suggestions. According to the technical scheme, the method comprises the steps that various performance data in the heterogeneous system are collected, and the collected various performance data in the heterogeneous system are analyzed in real time through the AI technology; the performance bottleneck in the heterogeneous system is detected, and adjustment and optimization work of load balancing, resource redistribution and algorithm optimization is automatically executed; the method specifically comprises the following steps: data acquisition and preprocessing; training an AI model; performance bottleneck monitoring and analysis; a tuning strategy is generated and automatically implemented; and feeding back the effect and updating the AI model.
Owner:西安超越申泰信息科技有限公司

Semiconductor-vortex tube synergistic heat pump system and control method thereof

The invention provides a semiconductor-vortex tube synergistic heat pump system and a control method thereof. The system comprises a compressor, a condenser, a temperature sensor, a pump, a solar heat collector, a stop valve, a solar radiation intensity sensor, a semiconductor assembly, a first gas-liquid separator, a vortex tube, a four-way reversing valve, an ejector, a first electronic expansion valve, a first reversing valve, a second electronic expansion valve, an evaporator, a second reversing valve and a second gas-liquid separator. And a third electronic expansion valve, a third reversing valve, a frost layer thickness sensor and a control element. The vortex tube is introduced, the working modes are switched through the four-way reversing valve, the performance of the heat pump system can be improved in the heat supply mode, non-stop defrosting is achieved in the defrosting mode, and the utilization efficiency of energy is improved.
Owner:XI AN JIAOTONG UNIV

Safety box body for producing hydrogen by autothermal reforming of methanol

The invention belongs to the technical field of methanol reforming hydrogen production, and particularly relates to a safety box for methanol autothermal reforming hydrogen production, the safety box comprises a box body, a first space and a second space are arranged in the box body, and a non-explosion-proof device is arranged in the first space; a combustion mechanism is arranged in the second space, the second space comprises an inner container and an outer wall, an airflow interlayer is arranged between the inner container and the outer wall, a fan is arranged between the airflow interlayer and the combustion mechanism, and the fan is used for conveying air in the airflow interlayer into the combustion mechanism. According to the invention, hydrogen-containing gas discharged at each stage in the running process of methanol autothermal reforming hydrogen production is collected and treated in a unified manner, combustible substances in tail gas are fully combusted, and environmental pollution is reduced; and heat is supplied to the reforming reactor through the combustion mechanism, residual hydrogen in the process is completely treated through waste heat utilization, the temperature of exhausted tail gas is reduced, and the system efficiency is improved.
Owner:STATE POWER INVESTMENT GRP HANGZHOU NEW ENERGY PROD & OPERATION CO LTD

Gravity and electrochemistry hybrid energy storage oil well micro-grid system and energy supply method

The invention belongs to the field of oil field well site energy supply, and discloses a gravity and electrochemistry hybrid energy storage oil well micro-grid system and an energy supply method. The system comprises a clean energy power generation device, an energy storage device, a production load, a power distribution device and an energy management device. Wherein the energy storage device comprises gravity energy storage equipment and electrochemical energy storage equipment, and the gravity energy storage equipment is formed by transforming an idle well in a well site. According to the system, the super-generating capacity of wind and light power generation is converted into potential energy to be stored in the gravity energy storage equipment, the gravity energy storage equipment can serve as a long-time energy storage device, when wind and light output is insufficient and the electrochemical energy storage equipment is insufficient in energy supply, the potential energy of the gravity energy storage equipment can be converted into electric energy to supply power to a load, and the energy utilization rate is increased; and the energy supply stability of the system is enhanced. In addition, the gravity energy storage device is formed by transforming an idle well in a well site, and is economical and environmentally friendly.
Owner:LIAOHE GASOLINEEUM EXPLORATION BUREAU CO LTD +2

Image super-resolution method, system and equipment based on low-resolution increment

The invention relates to an image super-resolution method, system and equipment based on low-resolution increment, and the method comprises the steps: carrying out the initial down-sampling and multi-round increment reconstruction, obtaining information increment through the additional down-sampling of each round of increment reconstruction, and carrying out the up-sampling and super-resolution processing based on the information increment until a reconstructed image meeting the requirements is obtained. Through multi-round on-demand additional down-sampling and focusing on an interested area (which can be a whole image or one or more local image blocks) of a user, incremental optimization is realized, transmission of redundant data is effectively reduced, unnecessary resolution overhead is avoided, dependence on low-resolution image size is reduced, data transmission and processing are enabled to be more simplified, and user experience is improved. The system efficiency is improved, and the bandwidth is saved.
Owner:HUNAN UNIV

Thermal management system and air conditioner

The utility model discloses a kind of heat management system and air conditioner, it is related to air conditioner technical field, wherein, heat management system includes integrated valve island, heat exchanger assembly and temperature sensing module;Integrated valve island includes valve island ontology and first throttling device, multiple flow passages are equipped in the valve island ontology, and the first throttling device is integrated on the flow passage;Heat exchanger assembly includes plate heat exchanger, and the plate heat exchanger is equipped with the first refrigerant inlet and outlet and first refrigerant inlet communicating the flow passage;Temperature sensing module is at least partially placed in the flow passage, to carry out temperature detection to the refrigerant flowing through the temperature sensing module;The technical scheme provided by the utility model can realize accurate temperature measurement.
Owner:GD MIDEA AIR CONDITIONING EQUIP CO LTD +1

Robotic dexterous manipulation system, method, apparatus and media for transparent objects

The application discloses a kind of robot dexterous operation systems, methods, equipment and media for transparent object, belong to robot dexterous operation and three-dimensional perception field, system includes: point cloud data construction module, can be constructed and noisy to obtain noisy hand-object interaction point cloud by physical simulation;Point cloud feature extraction module can extract high-dimensional latent features from noisy hand-object interaction point cloud;Query prediction module can infer object shape and pose by query point generation and decoder decoding;Perception coding module can extract features from global point cloud, hand-object interaction point cloud and tactile information to obtain multi-source perception features;Multi-modal feature fusion module can realize feature integration through self-attention mechanism and cross-attention mechanism calculation, and output fusion features;Action generation strategy module can generate differentiated action instructions for robot arm and dexterous hand based on fusion features.The system can achieve higher adaptability and stronger generalization capability in transparent object operation task.
Owner:UNIV OF SCI & TECH OF CHINA

A boost multi-phase interleaved silicon carbide single tube parallel current sharing design method

PendingCN122287533ANo need to enlarge marginSolve the problem of poor parallel current sharingCarbide siliconTransient state
This invention discloses a design method for parallel current sharing of BOOST multiphase interleaved silicon carbide single transistors. It identifies key parasitic parameters by building a dual-pulse simulation platform, completes device layout in conjunction with the overall system structure, uses PCB symmetry and copper layer stacking to control parasitic parameter consistency, and forms a design closed loop through dual-pulse and steady-state thermal testing. This effectively solves the problem of poor current sharing in parallel silicon carbide single transistors. Furthermore, this method ensures balanced current distribution during switching transients and conduction steady states, eliminates current sharing failures caused by parasitic parameter mismatch, fully utilizes the performance of silicon carbide single transistors without requiring amplification device margins, flexibly adapts to the overall system layout, improves space utilization, optimizes system efficiency, reduces design costs and redundancy, and achieves a reliable, efficient, and highly adaptable design for parallel current sharing of BOOST multiphase interleaved silicon carbide single transistors.
Owner:GUANGDONG MECHANICAL & ELECTRICAL COLLEGE

Industrial robot free-teaching weld seam searching method, device, equipment, storage medium and program product

ActiveCN121733116BAchieve unified perspectiveavoid resource consumptionProgramme-controlled manipulatorWelding/cutting auxillary devicesLaser transmitterLaser scanning
This application discloses a teach-free weld seam positioning method, apparatus, equipment, storage medium, and program product for industrial robots, relating to the field of automation technology. The teach-free weld seam positioning method for industrial robots includes: scanning a preset welding trajectory using a line laser to obtain the line laser scanning trajectory of the preset welding trajectory in the line laser tool coordinate system; transforming the line laser scanning trajectory to determine the tool center point pose of the welding torch end-effector trajectory in the welding torch end-effector coordinate system; and determining the welding point pose of the welding torch based on the tool center point pose. Since the line laser scanning trajectory obtained by scanning the preset welding trajectory using a line laser emitter is recorded, the actual welding torch end-effector trajectory is simulated; by converting the line laser scanning trajectory into the welding torch end-effector tool center point in the welding torch end-effector coordinate system, resource consumption caused by frequent coordinate transformations during welding is avoided, improving system efficiency and stability.
Owner:SHENZHEN ZMOTION TECH CO LTD

A fast consensus method and system for identity authentication based on blockchain

The present invention discloses a fast consensus method and system for identity authentication based on blockchain, including: obtaining user identity information of blockchain network; encrypting the user identity information using an improved encryption variant algorithm to generate a digital identity certificate; building an improved identity consensus signature framework by closely combining multiple Schnorr signature technology with blockchain consensus mechanism; introducing an optimized consensus algorithm to realize the special needs of identity authentication under multi-entity secure access to shared resources; introducing an adaptive intelligent dynamic weight distribution system to identify the user identity information; and encrypting and protecting it through an advanced encryption algorithm of the Sovrin architecture. The present invention not only realizes technical innovation through the improved algorithm, but also brings significant improvements in practical applications, meeting the needs of modern digital society for efficient, secure and scalable identity authentication solutions.
Owner:YANGZHOU NATURE NETWORK INFORMATION

Aircraft waste heat driven absorption dual temperature ring controlled refrigeration system and method

The present application provides an aircraft waste heat driven absorption type dual temperature ring controlled refrigeration system and method. The system includes a generator, the generator includes a first inlet, a second inlet and a first outlet, the first inlet receives a reaction solution, the second inlet receives waste heat generated by the operation of the aircraft main engine, the reaction solution in the generator and the waste heat undergo a wall-type heat exchange to generate a first state refrigerant; the first outlet is connected to a first temperature evaporator, receives a second state refrigerant, and outputs a third state refrigerant, the purity of the second state refrigerant is greater than that of the first state refrigerant, and the third state refrigerant includes refrigerants in different forms; the first temperature evaporator is connected to the second temperature evaporator inlet, and the liquid phase refrigerant in the third state refrigerant is extracted and input into the second temperature evaporator to generate a second temperature refrigeration capacity, wherein the first temperature is higher than the second temperature; the refrigerant output from the second temperature evaporator and the gas phase refrigerant in the third state refrigerant are mixed in the absorber to generate a reaction solution.
Owner:JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA

Pre-cooling type JT throttling refrigerating machine

The utility model relates to the technical field of mechanical refrigeration, and provides a pre-cooling type JT throttling refrigerating machine which comprises a pre-cooler provided with a cold head. A linear driving mechanism; the compression unit is connected with the linear driving mechanism and outputs a high-pressure gas working medium under the action of the linear driving mechanism; the vacuum cover is used for providing a vacuum heat insulation effect; the compression unit and the cold head are coupled and are positioned in the vacuum cover; the heat exchanger is used for pre-cooling the high-pressure incoming flow gas by utilizing the backflow cold gas; the throttling valve penetrates through the heat exchanger and communicates with the high-pressure end of the compression unit; one end of the evaporator is connected with the throttle valve, and the other end penetrates through the heat exchanger and is connected with the low-pressure end of the compression unit. According to the utility model, the compression unit for driving the throttling working medium is placed in the vacuum cover at a low temperature, so that the output performance of the compression unit is improved, and the system efficiency of the refrigerator is improved; in addition, the compression unit is directly coupled with the cold head, the system structure is simplified, and the efficiency of the refrigerating system is improved.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI

A method for optimizing space-ground network resources by minimizing the age of data collection information

ActiveCN119364401BImplementing age minimizationreduce freshnessNetwork traffic/resource managementNetwork topologies
The invention discloses an air-space-ground network resource optimization method for minimizing the age of data collection information, and belongs to the field of wireless communication; the method comprises: S1, constructing an initial model; S2, setting initial parameters for iteration; S3, obtaining the optimal time allocation under the conditions of given flight trajectory, transmission power, rate allocation and segmentation ratio; S4, obtaining the optimal flight trajectory and rate allocation under the conditions of given time allocation, transmission power and segmentation ratio; S5, obtaining the optimal segmentation ratio under the conditions of given time allocation, flight trajectory, rate allocation and transmission power; S6, obtaining the optimal transmission power under the conditions of given time allocation, flight trajectory, rate allocation and segmentation ratio; S7, substituting the optimal result obtained in the front of the BCD method into S3, updating the variable of the number of iterations, repeating S3 to S6, until the initial model meets the convergence condition, the iteration is terminated, and the optimal solution of the initial model is obtained.
Owner:NANJING UNIV OF POSTS & TELECOMM

A Bipolar Self-Equalizing DC-DC Converter Based on Magnetic Integration and an Optimization Method for Soft Switching

This invention relates to a bipolar self-equalizing DC-DC converter based on magnetic integration and a soft-switching optimization method. It includes two full-bridge circuits, a four-winding transformer, and a voltage-balanced coupling inductor. The first full-bridge circuit outputs two voltages, which are respectively input to the first and second primary windings of the four-winding transformer. One end of the first and second secondary windings of the four-winding transformer is connected to the midpoints of the first and second arms of the second full-bridge circuit, respectively. The other ends of the first and second secondary windings of the four-winding transformer are connected to one end of the primary and secondary windings of the voltage-balanced coupling inductor, respectively. The other ends of the primary and secondary windings of the voltage-balanced coupling inductor are also connected to one end of a first load and one end of a second load. This invention enables all power semiconductor devices to achieve zero-voltage switching characteristics.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO LTD SUZHOU BRANCH +1

Audio and video code rate adjusting method and device, program product and electronic equipment

The invention discloses an audio and video code rate adjusting method and device, a program product and electronic equipment, and relates to the field of financial science and technology or other related fields, and the code rate adjusting method comprises the steps: collecting performance data and network data of target equipment, obtaining audio and video original stream data, and transmitting the audio and video original stream data to a server; the method comprises the steps of constructing multi-modal data based on performance data, network data and audio and video original stream data, determining a reference code rate based on the multi-modal data, determining target encoder parameters of a target encoder based on the reference code rate and the multi-modal data, and determining the target encoder parameters of the target encoder based on the target encoder parameters. And performing code rate adjustment on the audio and video original stream data by using the target encoder to obtain target audio and video stream data. According to the invention, the technical problem that the code rate of audio and video cannot be accurately adjusted in the prior art is solved.
Owner:INDUSTRIAL AND COMMERCIAL BANK OF CHINA

A power distribution method and device for a fuel cell hybrid power system

This application provides a power distribution method and apparatus for a fuel cell hybrid power system. At the start time of the i-th maintenance duration, the i-th initial target power of the fuel cell is obtained. The i-th initial target power is determined based on the vehicle's total power demand before the start time and the first charge state of the high-voltage battery before the start time. If the absolute value of the difference between the i-th initial target power and the historical target power within the (i-1)-th maintenance duration is greater than or equal to the power step size, then the i-th actual target power of the fuel cell is determined based on the historical target power within the (i-1)-th maintenance duration and the power step size. If the absolute value of the difference between the i-th initial target power and the historical target power within the (i-1)-th maintenance duration is less than the power step size, the historical target power within the (i-1)-th maintenance duration is determined as the i-th actual target power of the fuel cell. Controlling the stepwise change of the actual target power can match the power consumption response rate of the fuel cell.
Owner:SAIC MOTOR

Magnetic suspension bearing motor structure and method

The invention provides a magnetic suspension bearing motor structure and method, the magnetic suspension bearing motor structure comprises a motor stator (2) arranged in a shell (1) and a rotor (3) which is arranged in a center shaft area of the motor stator and is provided with a thrust shaft shoulder (32), and a bearing structure of the rotor comprises a radial magnetic suspension bearing (5) and an axial magnetic suspension bearing (6) which are arranged from inside to outside; the rotor is of an integrated rotating shaft structure formed by assembling and combining a rotating shaft and a permanent magnet, and the thrust shaft shoulders are arranged at the two ends of the integrated rotating shaft structure. In a magnetic circuit of the axial magnetic suspension bearing, the axial magnetic suspension bearing forms an axial magnetic field capable of being coupled with a thrust shaft shoulder of the rotor through a magnetic conducting ring (62) of the axial magnetic suspension bearing, and axial magnetic force is applied to the thrust shaft shoulder, so that the rotor is kept stable in the axial direction during operation; according to the invention, the design of the magnetic suspension bearing motor without the thrust disc can be realized.
Owner:FUJIAN SNOWMAN COMPRESSOR CO LTD

Controller of heavy truck electric automobile

The utility model discloses a controller of a heavy truck electric automobile. The controller comprises a control shell, the control shell is provided with a first containing cavity with an opening in the top, and a wire holder is installed at one end in the first containing cavity. A thin-film capacitor is mounted on one side in the first accommodating cavity, and an input positive terminal and an input negative terminal are mounted on the thin-film capacitor; six upper-layer output terminal assemblies are mounted at intervals in the length direction of the upper part of one side of the thin-film capacitor, and three lower-layer output terminal assemblies are mounted at intervals in the length direction of the lower part of one side of the thin-film capacitor. According to the utility model, the three-dimensional laminated layout of the thin-film capacitors and the IGBT modules is adopted, the U-phase and W-phase modules are arranged on the upper layer, the V-phase modules are arranged on the lower layer, and the water-cooling plate is adopted in the middle, so that the double-sided IGBT can be cooled, the bus connection length can be shortened, the system loss can be reduced, and the system efficiency can be improved.
Owner:SHENZHEN XISITE NEW ENERGY TECH CO LTD

A system and method for compacting and cementing whole tailings modified body

The invention discloses a system and method for compacting and cementing a modified body of full tailings. The system comprises a deep cone thickener, a feeding belt conveyor and a silo; the deep cone thickener is sequentially connected to a variable frequency underflow pump, a concentration meter, a flow meter A and a feeder; the deep cone thickener is also sequentially connected to an overflow pool, a variable frequency water supply pump, a three-way regulating valve and a flow meter B, the three-way regulating valve is also connected to the overflow pool, and the flow meter B is connected to the feeder; the feeding belt conveyor is sequentially connected to a buffer hopper, a continuous metering feeder A and a feeder; the silo is sequentially connected to a continuous metering feeder B, a feeder, a bulk mixer, a transfer belt conveyor and a tailings pond; the system also comprises a roller connected to the tailings pond.
Owner:湖南忠信智能装备有限公司