33results about How to "Realize closed-loop operation" patented technology

The invention discloses a multi-dimension labelling and model optimization method for audio and video. The method specifically comprises the following steps: first, carrying out sample management andsorting, carrying out de-duplication aiming at sample data of an input system, carrying out numbering, and establishing a sample labelling task library; at the preprocessing stage of audio data, carrying out audio extraction on video data of the task library, and completing the preprocessing operation for the audio data; at the audio content analysis and feature extraction stage, after the audio preprocessing is completed, carrying out deep analysis according to a labelling standardized system configured at the background, and outputting label data; S304, at the video content analysis and feature extraction stage, carrying out image analysis on the video content, and carrying out deep analysis according to the labelling standardized system configured at the background, and outputting the label data; S305, carrying out feature fusion and label generation, namely, fusing the recognition features and label information, and outputting a label result of the sample; carrying out manual rechecking and model optimization, wherein the label result data generated by the system can be subjected to artificial re-check conformation.

The invention discloses a wind power cluster integrated frequency control method based on hierarchical distributed model predictive control, which comprises the following steps of: establishing a hierarchical distributed model predictive control H-DMPC controller; The multi-time scale coordinated variable granularity frequency control framework of wind power cluster is established in the tertiaryfrequency modulation layer, the secondary frequency modulation layer and the primary frequency modulation layer. The rolling optimization models are established on the spatial scale in the tertiary frequency modulation layer, the secondary frequency modulation layer and the primary frequency modulation layer respectively. In the aspect of wind power prediction error correction, the feedback correction link is established to realize the closed-loop operation of integrated frequency control through the feedback correction of grid operation state and prediction data. The invention establishes a feedback correction link according to the real-time operation state of the system, realizes the closed-loop operation of the integrated frequency control strategy, and the proposed control strategy caneffectively realize the wind power cluster to participate in the system frequency modulation, and can consider both the economy and the safety objectives of the system.

The invention relates to a novel process for separating zinc and cobalt from nickel and cobalt slag from zinc smelting and purification, which comprises: separating cobalt from lixivium of nickel and cobalt slag by using a cobalt activation inorganic flocculation method, enriching the cobalt, recovering cobalt, removing cadmium from the cobalt-free lixivium by using the conventional zinc replacement method, obtaining sponge metal cadmium, delivering the sponge metal cadmium to a zinc smelting copper and cadmium processing step to recover metal cadmium. After cobalt and cadmium are removed, the lixivium is returned to a leaching step in a main zinc smelting system for recovering zinc. Thus, metals such as zinc, cobalt, cadmium and the like are recovered from the nickel and cobalt slag; meanwhile, the environmental pollution influence of the long-term piled up slag and the risk of irregular transfer of heavy metal pollutants such as cadmium in the zinc industry are eliminated, the closed-circuit operation of the recycling of the slag is realized, discharge of waste water and gas is avoided, valuable metals are comprehensively recovered, the requirement on pollution-free production is met and the problem of the industry is solved.

The invention discloses a dynamic business integrating model and an application method thereof, belonging to the technical field of cloud computing data services. The dynamic business integrating model comprises a data template, a display template, a business configuration management module, a processing step management module and a container scheduling module, wherein the data template is used for formatting the intercepted data information; the display module is used for realizing online editing, implementation and deployment of a displayed page as well as front office business editing of the intercepted data; the business configuration management module is used for defining the mapping relation between a uniform resource identifier (URI) of a new business and a business processing step; the processing step management module is used for defining a logical processing step of the URI of the new business; the container scheduling module is used for calling the data template according to the type of the logical processing step for carrying out data identification processing, and caching data processing results. The dynamic business integrating model is capable of remarkably improving the integrating efficiency of system business and realizing the dynamic conversion of the business data, thus having good popularization and application values.

The invention provides a superconducting magnet system for providing a high-intensity magnetic field for an X ray total-scattering apparatus. The superconducting magnet system comprises a superconducting magnet part and a lower temperature system part, wherein the superconducting magnet part is combined by multiple pairs of separated superconducting coils; the skeleton of the superconducting coil pair is combined by two groups of detachable structures; a space for mounting a 80 degrees +80 degrees perpendicular wide angle room temperature optical window and a horizontal room temperature aperture for inserting a test sample are mounted in the middle of the skeleton; the superconducting magnet system can run at a temperature of 4.5K liquid helium temperature and can provide 0-10T adjustable central magnetic field intensity. The superconducting magnet system provided by the invention has the advantages of long-term closed loop operation, low operation cost, compact structure, stability, reliability, capability of realizing zero evaporation of liquid helium and the like.

The invention discloses a smashing grinding system and method. The system comprises a rough smashing unit, a medium fine smashing unit, an ore pregrinding unit and an ore grinding unit, wherein the rough smashing unit comprises a raw material bin, a first material feeder, a rough smashing crusher, a rough smashing ore bin, a second material feeder and a first vibrating screen which are connected in sequence; the medium fine smashing unit comprises a medium smashing front buffer bin, a third material feeder, a medium smashing crusher, a medium fine smashing ore bin, a fourth material feeder, asecond vibrating screen, a fine smashing front buffer bin, a fifth material feeder and a fine smashing crusher which are connected in sequence, and the fine smashing crusher is connected with the medium fine smashing ore bin; the ore pregrinding unit comprises a fine ore bin, a sixth material feeder, a cramming material feeding hopper, a high-pressure roller grinding machine, an ore pregrinding product buffer hopper and a third vibrating screen which are connected in sequence, the fine ore bin is connected with below-screen material outlets of the first vibrating screen and the second vibrating screen, and an above-screen material outlet of the third vibrating screen is connected with the cramming material feeding hopper; and the ore grinding unit comprises a ball grinding machine, a pumppool, a slurry pump and a swirler which are connected in sequence, and the ball grinding machine is connected with the below-screen material outlet of the third vibrating screen.

The invention discloses a power distribution network multi-end flexible interconnection switch based on hybrid submodules MMC. The power distribution network multi-end flexible interconnection switch comprises bypass interconnection switches. Each path of power supply is accessed to a power distribution network through an MMC current converter. The DC sides of the MMC current converters are interconnected. All paths of the power supplies are connected through the bypass interconnection switches. The situation that the present power distribution network framework is difficult to meet the requirements of the user for environmental protection, power supply reliability and electric energy quality can be solved. The technical problems that the conventional power distribution network topological structure, the automatic system and switching equipment are difficult to essentially change the system level uncontrollability of the power distribution network and are not suitable for the diversified power supply modes can be solved.

The invention relates to a financial risk classification method and device, electronic equipment and a computer readable medium. The method comprises the steps of obtaining a terminal application listof a user, wherein the terminal application list comprises installed application information; respectively inputting the application information in the terminal application list into a first word vector model and a second word vector model to generate word vector information of the user; and inputting the word vector information of the user into a user risk classification model to generate a riskclassification identifier of the user and a risk probability corresponding to the risk classification identifier, wherein the user risk classification model is obtained by training a multi-layer perceptron model. According to the financial risk classification method and device, the electronic equipment and the computer readable medium, the risk levels of different users can be analyzed adaptively, closed-loop operation of risk management and control is achieved, analysis and disposal bases are provided for managers, and risks caused by manual auditing are reduced.

The invention provides a small-scale kitchen waste garbage methane system, and belongs to the technical field of biological fermentation. The small-scale kitchen waste garbage methane system comprisesa charging pretreatment device, an S-shaped water sealing pipe, a raw material storing device, a charging control valve, a methane generation device, a methane purifying device and a methane storingdevice which are sequentially connected. From collection of kitchen waste garbage subjected to anaerobic fermentation to produce methane, to methane purification and storage and to final conveyance tousers, whole-course closed loop operation is realized, and resourceful and innocent treatment of the kitchen garbage can be effectively realized. According to the small-scale kitchen waste garbage methane system, automation control is realized in the whole course, man-made excessive intervention is not needed, and the small-scale kitchen waste garbage methane system is safe and reliable and highin applicability.

The invention provides an APP-based intelligent user occupational judgment method, a device and electronic equipment. The method comprises the following steps: setting a user occupational classification strategy, screening seed APPs, and constructing a seed APP model; the seed APP model is subjected to amplification processing to obtain a seed APP classification model, and the seed APP classification model is used for judging the occupational category of the user according to APP information in the APP installation list information of the user; acquiring APP installation list information of atarget user, and automatically performing text vectorization on corresponding APP information in the APP installation list information; performing classification and quantitative calculation on APPs in the APP installation list information of the target user by using the seed APP classification model; and judging the occupational category of the target user based on a preset judgment rule. According to the method, errors of manual intervention can be effectively reduced, and the occupational mining efficiency and accuracy of the user are improved.

The invention discloses an intelligent fine management control system applied to intelligent agriculture. The system comprises a data acquisition module, a local control system, a local database, a local UI terminal, a cloud server, a cloud database, a remote UI terminal and a machine vision algorithm module. The local control system regularly acquires the environmental data and the crop image data acquired by the data acquisition module, stores the environmental data and the crop image data in the local database, and pushes the environmental data and the crop image data to the local UI terminal for display and query; at the UI terminal, a manager sets a management rule by himself / herself as required, and the system automatically controls the control equipment in the planting environment according to the management rule; meanwhile, the collected data is uploaded to a cloud end at regular time; at the remote UI terminal, a remote manager combines a control instruction and a recognitionresult of a machine vision algorithm module on the crop health condition, synchronously returns the recognition result to the local control system, and automatically controls crops or guides the manager to perform corresponding operation guidance through control equipment.

The invention relates to an intelligent closed-loop switch of a power distribution network. The intelligent closed-loop switch comprises a closed-loop switch and an intelligent regulator, wherein theclosed-loop switch is used for disconnecting or closing a power distribution ring network, the intelligent regulator is used for controlling the closed-loop switch to be switched off or switched on, the intelligent regulator comprises a communication module, a power adjustment module and a controller, the communication module is in communication connection with a ring main unit of each node of thepower distribution ring network, the power adjustment module is used for adjusting voltage difference of two ends of the closed-loop switch, and the controller is connected with the communication module, the power adjustment module and the closed-loop switch. The intelligent closed-loop switch has the beneficial effects that the intelligent regulator of the intelligent closed-loop switched of thepower distribution network comprises two AC power supplies comprising a series power supply and a parallel power supply, the series power supply is directly connected in series with a power distribution network line and is directly superposed onto a line power supply by adjusting amplitude and phase of an output voltage, the amplitude and the phase of the voltage difference of the two ends of theloop-closed point reach design requirement of loop-closed running, the closed-loop switch is switched on, and closed-loop running of the line is achieved.

The invention discloses a system and a method for controlling a thermal load of a high-pressure direct injector in a trace diesel ignition cylinder. The method comprises the following steps of an ECU (Electronic Control Unit) is respectively connected to a natural gas injection control electromagnetic valve, a diesel injection control electromagnetic valve, a cooling diesel quantity control valve and an injector thermal load monitoring feedback system; the diesel / natural gas injector is respectively connected to the natural gas injection control electromagnetic valve and the diesel injection control electromagnetic valve; an annular cooling oil cavity is arranged in a needle valve body of the diesel / natural gas injector; after the cooling diesel enters the annular cooling oil cavity to cool the needle valve body of the injector, the cooling diesel flows into a diesel return pipeline. The system and the method have the beneficial effects that the thermal load of the needle valve body of the direct injector can be effectively controlled to prevent faults, such as burning loss, blockage and coking, of the needle valve body of the injector due to the excess temperature of the needle valve body of the direct injector.

The invention provides a second-generation high-temperature superconducting strip closed coil and a preparation method thereof, and belongs to the technical field of superconducting materials. After a second-generation high-temperature superconducting strip wrapped by an insulating material is wound into a coil, a superconducting layer of a joint to be connected is exposed, the strips at the two ends are connected together in a fusion diffusion welding mode, and in the fusion diffusion welding process, the superconducting layer loses superconductivity; according to the method, the coil with the welding joint is subjected to heat treatment in the oxygen-containing atmosphere, in the heat treatment process, the superconducting layer is oxygenated, the oxygen content of components of the superconducting layer is increased, the superconductivity of the superconducting layer is recovered, and therefore connection of the superconducting state of the second-generation high-temperature superconducting strip at the two ends of the coil is achieved. According to the method, the welding joint of the preliminarily closed coil is subjected to copper coating treatment, the mechanical strength of the joint can be improved, the coil subjected to copper coating treatment is soaked in epoxy resin, and the overall mechanical strength and stability of the coil can be improved.

Energy storage, carbon sequestration and new energy circulation is characterized in that carbon dioxide and water are electrolyzed by utilizing garbage electric energy which cannot be consumed and can be wasted to generate methanol for storage, so as to realize chemical energy storage; carbon dioxide sequestration is realized; when a user needs power supply, an alcohol fuel cell generates power on demand to meet human demands; the environmental requirements of carbon dioxide and methanol storage are simpler, more economical and safer than those of hydrogen storage; and zero emission of carbon is realized. Meanwhile, carbon dioxide generated in other ways and carbon dioxide in air are subjected to carbon sequestration; the method is safer than geological carbon sequestration and has economic benefits. Economical benefits can be achieved for real operation. Carbon dioxide and water are electrolyzed through garbage electric energy to generate methanol, and a closed loop of methanol circulation is achieved. The stored alcohol provides energy which can be used at any time for human beings, and the energy crisis of the human beings is solved. An alkaline electrolyzer, an alkaline bipolar electrolyzer and a solid electrolyte electrolyzer are adopted for implementing energy storage, carbon sequestration and new energy circulation.

The invention relates to a flexible multi-state switching device based on a turn-off power electronic device. The flexible multi-state switching device is characterized by comprising a direct-currentpositive and negative bus, a control module, a direct-current voltage / current measurement module, an alternating-current voltage / current measurement module, a communication module, a plurality of AC / DC conversion modules and a DC / DC conversion module. According to the invention, the control of an electric energy flow and the fusion of an information flow are realized, the loop closing operation ofa power distribution network of the same voltage level and different voltage levels is realized, the access of the direct-current electric devices and direct-current power supplies with different voltage levels is realized, and the power flow characteristic and the electric energy quality of the power distribution network can be further improved.

The invention provides an intelligent cleaning and recycling device for fluorescent powder of a scrapped CRT television. The intelligent cleaning and recycling device comprises an XYZ three-dimensional module moving mechanism, a fluorescent powder cleaning and dust collecting mechanism and a machine vision system; the XYZ three-dimensional module moving mechanism is composed of a three-axis synchronous belt sliding table module, and each axis corresponds to a feedback type closed-loop stepping motor to achieve accurate movement; the fluorescent powder cleaning and dust collecting mechanism is fixed to a sliding block of a Z-axis module sliding rail and used for collecting the fluorescent powder; and the machine vision system comprises an industrial camera and is used for collecting image information of screen glass. According to the intelligent cleaning and recycling device, an existing recycling enterprise fluorescent powder cleaning station is transformed and upgraded, the beneficial effects of being simple in structure and low in production cost are achieved, the problems that in the existing fluorescent powder recycling process, the labor intensity of workers is large, the work efficiency is low, the work environment is severe, and occupational health hazards are likely to happen are solved, manpower can be replaced, the labor cost is reduced, and the intelligent cleaning and recycling device is suitable for large-scale industrial application.

The invention discloses a multilayer sleeve type superconducting magnet and a manufacturing method thereof, and belongs to the technical field of a superconducting magnet application. The multilayer sleeve type superconducting magnet is formed by combining a plurality of cylindrical superconducting sheets with the same height and the radiuses from small to large one by one, and a layer of insulating sheet is arranged between every two cylindrical superconducting sheets. A coil formed by double-layer winding of copper wires can be placed in the center of the superconducting sheet with the minimum radius, and is externally connected with a pulse power supply to form a magnetic flux pump which is powered by the principle of the magnetic flux pump. Due to the fact that the angle deviation between a film layer and a tangent plane is required to be not larger than 5 degrees in the coating process of the superconducting sheet, the arc length and the radius of the cylindrical superconducting sheet have certain manufacturing requirements. According to the invention, operation loss can be reduced in practical application, a stable large-space magnetic field is generated step by step, excitation efficiency is improved, and closed-loop operation of the superconducting magnet is realized.

The invention relates to a low-voltage four-port flexible direct-current system structure and a control method, and the structure comprises a pair of ring net racks which employ a petal-type wiring mode. The pair of ring net racks are connected through a four-port flexible direct-current system, the ends 1, 2, 3 and 4 of the alternating-current side of the four-port flexible direct-current system are respectively connected with the I-section bus of the first power distribution station, the I-section bus of the second power distribution station, the II-section bus of the second power distribution station and the II-section bus of the first power distribution station, and the direct-current sides of the four ports are interconnected back to back so as to realize a petal-type wiring inter-petal closed-loop operation mode of the first and second substations. When a fault occurs, rapid load transfer can be realized by switching operation modes, and the power supply reliability is improved.

The invention discloses a treatment method of high-salt and high-COD wastewater. Cation of salt in the wastewater is sodium ion; the treatment method is implemented according to the following steps: (1) adsorbing the high-salt and high-COD wastewater through resin to remove COD in the wastewater; (2) carrying out at least one stage of bipolar membrane electrodialysis treatment on the resin effluent to convert salt into acid and NaOH solution for recycling; (3) cleaning the fully adsorbed resin in the step (1) with pure water, then desorbing with a NaOH solution to obtain a desorbed solution, cleaning the desorbed resin with pure water until the cleaning solution is neutral, then reusing the resin for adsorption in the step (1), and combining the desorbed solution and the cleaning solution to obtain a mixed solution; (4) carrying out at least one-stage electrodialysis treatment on the mixed solution to recover the NaOH solution; controlling the concentration of the NaOH solution obtained in the step (2) and the concentration of the NaOH solution used for resin desorption in the step (3) to be not lower than the concentration of the NaOH solution used for resin desorption in the step (3), and using the NaOH solution obtained in the step (2) and the NaOH solution obtained in the step (4) directly for the step (3) or diluted for the step (3).

The invention provides a superconducting switch for a superconducting magnet system of a superconducting maglev train. The superconducting switch comprises a magnesium oxide substrate, and is of a film type structure, wherein the front end face of the magnesium oxide substrate is plated with a superconducting strip YBCO film, the superconducting strip YBCO film is designed to be a snake-shaped wire with gaps on the front end face of the magnesium oxide substrate, a layer of gold foil is plated on the superconducting strip YBCO film positioned at the upper end and the lower end of the magnesium oxide substrate, and a heating wire in snake-shaped wiring is also wound on the rear end surface of the magnesium oxide substrate. According to the superconducting switch, closed-loop operation of the superconducting coil can be achieved, a long-time high-stability noiseless magnetic field is achieved, a vehicle-mounted power source for coil excitation can be omitted, the weight of a maglev train is reduced, the superconducting switch can be used in parallel with a low-temperature diode in the using process, effective safety protection of the superconducting switch is achieved, and the damage rate of the superconducting switch is reduced.

The invention discloses a dehumidifying and drying device for flue-cured tobacco. The device comprises a shell, the interior of the shell is divided into a first space and a second space through a first partition plate. A gas-gas heat exchanger is arranged in the first space; the gas-gas heat exchanger is inclined at a certain angle relative to the horizontal plane; a condenser and a dehumidification evaporator are respectively arranged on the peripheral sides of the gas-gas heat exchanger in the first space; the peripheral sides of the gas-gas heat exchanger are respectively connected with the condenser and the dehumidification evaporator; a second partition plate is arranged between the gas-gas heat exchanger and the first partition plate; a hot air return opening is formed in the position, corresponding to one side of one air inlet of the gas-gas heat exchanger, of the shell, a small air door is arranged between the gas-gas heat exchanger and the shell in a third space, a first airdoor and a second air door are arranged on the first partition plate, and an evaporator with a fan is arranged in the second space. According to the dehumidifying and drying device for flue-cured tobacco, through reasonable structural distribution, waste heat is fully utilized, and the purpose of saving energy is achieved.