568results about How to "Efficient conversion" patented technology

The present application relates to the field of biotechnology, and in particular to an epimerase for synthesizing D-tagatose and its application, wherein the epimerase produces a mutation at position 100, or at position 125, or at position 127, or at position 131, or at position 268, or at position 270, or at position 271, or at position 308, or at position 339, or at position 340, or at position 342, or at position 366, or at position 402, or at position 437, or at position 440 in the amino acid sequence shown in SEQ ID NO. 142; through the above-mentioned method, the epimerase exhibits excellent epimerization activity at the 4th carbon position of D-fructose, can efficiently convert D-fructose into D-tagatose, and is beneficial to improving the synthesis efficiency of D-tagatose.

The invention discloses a control system for a photovoltaic energy storage inverter, and the system comprises a maximum power point tracking module which is used for adjusting the output of a photovoltaic panel after the photovoltaic energy storage inverter receives a power input signal, optimizing the energy collection, a dynamic adjustment module which is used for adjusting the output of the photovoltaic panel based on the power grid fluctuation and load change parameters which are monitored in real time, the control system of the photovoltaic energy storage inverter comprises a control module used for dynamically adjusting the output frequency and voltage of the inverter and achieving efficient conversion and matching of electric energy, and a closed-loop feedback module used for continuously adjusting the output parameters of the inverter until the output parameters reach a preset energy conversion efficiency threshold value. The system is ensured to be always in an optimal operation state, and unpredictable factor changes are accurately and intelligently adapted, so that the overall conversion efficiency of the photovoltaic energy storage system is improved.

The invention discloses a virtual power plant planning-operation two-stage distribution robust optimization method based on scene driving, and the method comprises the steps: S1, building a capacity configuration model and a master-slave game model based on a master-slave game framework of a power supply, a load and energy storage; s2, considering the correlation and uncertainty of fan and photovoltaic output to construct an uncertainty set of wind and light output probability distribution, and generating a plurality of typical scenes through a sampling and clustering algorithm; s3, performing comprehensive norm constraint on the confidence interval of the uncertain set under the driving of a typical scene, and establishing a distribution robust optimization model of the virtual power plant in two stages of planning and operation, wherein the distribution robust optimization model considers uncertainty; wherein the distributed robust optimization model comprises a capacity configuration model and a master-slave game model; and S4, solving the distribution robust optimization model containing the master-slave game model based on the modified Kriging model and a column and constraint generation algorithm. By utilizing the method, the influence of uncertainty on the planning rationality and the operation economy of the virtual power plant can be reduced.

The invention discloses a voice control implementation method and system based on a large model, belongs to the technical field of artificial intelligence, and aims to solve the technical problems of insufficient recognition precision, low response speed and limited complex context processing capability in voice control. Comprising the following steps: analyzing a user voice instruction into a text instruction through a voice recognition model; performing semantic feature extraction on an input text instruction through a pre-trained text embedding model, and outputting a text embedding vector as a to-be-recognized text embedding vector; searching whether a text embedding vector similar to the to-be-identified text embedding vector exists in a pre-constructed vector database, if not, executing text analysis, and if yes, returning corresponding control information from the vector database; and taking the text instruction and the question statement as input, performing semantic analysis through a pre-trained large language model to obtain control information, and storing a text embedding vector corresponding to the current user voice instruction and the control information into a vector database.

The invention discloses a ginseng fermentation product rich in ginsenosides Rg3, Rk1 and Rg5 as well as a preparation method and application of the ginseng fermentation product. Aiming at the problem that the existing ginseng fermentation product has certain effects in the aspects of whitening, resisting anemia, resisting inflammation, delaying cognitive impairment, enhancing the immunity of the organism and the like, but no effect is particularly clear and prominent, the ginseng fermentation product is prepared by fermenting a ginseng fermentation substrate by using a specific probiotic composition; the composition is rich in rare ginsenosides Rg3, Rk1 and Rg5, and the relative content of the ginsenosides Rg3 is high. Experimental research shows that compared with the existing ginseng fermentation product, the ginseng fermentation product disclosed by the invention has a more definite and prominent effect of relieving cognitive impairment. The ginseng fermentation product is simple in preparation method and easy to industrialize, can be widely applied to functional food and other large health fields, and has a wide application prospect.

The invention discloses a trigeminal structure spot size converter for a proton exchange waveguide and a preparation method. The trigeminal structure spot size converter sequentially comprises a substrate, an insulating layer and a lithium niobate film layer, the lithium niobate film layer comprises a first waveguide part which is used as an input end of the converter; the second waveguide part is connected with one end of the first waveguide part and is positioned on the same plane as the first waveguide part; a third waveguide portion on the second waveguide portion; the proton exchange waveguide is arranged in the third waveguide part, light is transmitted in the first waveguide part, the second waveguide part, the third waveguide part and the proton exchange waveguide in sequence, and the transverse sizes of the second waveguide part, the third waveguide part and the proton exchange waveguide are sequentially increased in the light transmission direction. The silicon oxynitride waveguide guides light waves in the optical fiber to enter the chip, the light waves in the optical fiber are efficiently guided, the light waves are limited in the silicon oxynitride waveguide and enter the lithium niobate waveguide, and loss caused by light wave diffusion is avoided; a conical waveguide structure is adopted, mode mutation is avoided, and coupling loss is reduced.

The invention provides an energy-saving, carbon-reducing and synergistic technical path optimization method for a steel production system. The method comprises the following steps: establishing a steel production process mechanism and data driving hybrid model; accounting heat, energy, # imgabs0 # quantity and pollutants on the basis of a steel production process mechanism and a data driving hybrid model, and performing process connection to form a steel production system simulation model; on the basis of the steel production system simulation model, a value flow analysis model is embedded, and steel production system value flow accounting is carried out; on the basis of the steel production system simulation model, embedding low-carbon, zero-carbon and negative-carbon technologies in a substance or energy connection mode, and establishing a steel production system coupling carbon reduction technology simulation model; setting an optimization target of the coupling carbon reduction technology simulation model of the steel production system; and optimizing the material energy input parameter variable, the process operation parameter variable and the technical application parameter variable by adopting a U-NSGA-III method to obtain a technical optimization path of the steel production system.

The invention relates to the field of environmental remediation, and discloses a remediation method for high-concentration organic pollutants in soil, which comprises the following steps: firstly, injecting a nano zero-valent iron (nZVI) suspension into the contaminated soil for chemical reduction treatment, then adding sodium persulfate for oxidation treatment, and then adding a nano zero-valent iron (nZVI) suspension into the contaminated soil; the complex organic pollutants are converted into biodegradable intermediate products; then, two-stage microbial communities are introduced in sequence, the first-stage microbial community is used for degrading alcohol and ketone intermediate products, the second-stage microbial community is used for degrading organic acid intermediate products, and thorough mineralization of pollutants is achieved. According to the method, the pollutant degradation rate and the final removal effect can be remarkably improved, and the method is suitable for treatment scenes of various high-concentration organic pollutants and has high adaptability and economic benefits.

The invention discloses a grinding workpiece edge shape detection method and system based on machine learning, and the method comprises the steps: obtaining an original image of a grinding workpiece, and carrying out the preliminary image preprocessing; denoising the image and enhancing edge information by combining image filtering and mathematical morphology image processing; based on a second-order differential operator, edge detection is carried out in combination with the morphological gradient, and a workpiece edge contour is obtained; performing feature extraction on the image by using a convolutional neural network, automatically learning workpiece edge features, and constructing and training an edge detection model; acquiring a workpiece image in real time, inputting the workpiece image into the edge detection model for detection, and dynamically correcting the model; and S6, outputting a final edge detection result. According to the invention, by combining image preprocessing, composite image filtering, second-order differential operator and morphological gradient edge detection and feature extraction and model construction of the convolutional neural network, high-precision and robust detection of the edge of the grinding workpiece is realized.

The invention discloses a control method of an ocean energy comprehensive power generation system. The system comprises a wave power generation module, a solar power generation module and a wind power generation module, the wave energy power generation module comprises a spine, a floating plate and a lever arm, and the floating plate is connected with the lever arm and can move along with waves so as to drive the lever arm to drive a power generator in the spine to generate power. The method comprises the following steps: acquiring current environment parameters in real time; according to the current environment parameters, the included angle between the spine and the wave direction is adjusted with the purpose of maximizing the comprehensive power generation efficiency of the wave energy power generation module, the solar power generation module and the wind energy power generation module. The power generation efficiency of the wave energy power generation module, the solar power generation module and the wind energy power generation module is comprehensively considered, and the working state of the power generation system is adjusted in time, so that energy can be efficiently collected and converted from the marine environment for the multi-energy power generation system combining wave energy, solar energy and wind energy, and the energy utilization efficiency is improved.

The invention relates to a preparation method of a copper-doped carbon nitride nano composite material and application of the copper-doped carbon nitride nano composite material in electrocatalytic carbon dioxide reduction. The preparation method comprises the following steps: firstly, preparing a carbon nitride precursor, taking salt of metal copper as a source of the metal copper to obtain a copper-doped carbon nitride nano composite material, and applying the copper-doped carbon nitride nano composite material to electrocatalytic reduction of carbon dioxide to obtain ethanol. Results show that in a wide voltage range, the catalytic performance of the catalyst is obviously improved, which is mainly characterized in that lamellar graphite carbon nitride is used as a substrate, existence of pyridine nitrogen is beneficial to activation of carbon dioxide to generate CO *, copper in a monatomic form can promote a C-C coupling process, and then a multi-carbon product ethanol is generated; and the lamellar morphology can utilize catalytic active sites to the greatest extent, so that the catalytic performance is greatly improved.

The invention relates to the technical field of agricultural fertilizers, and particularly discloses a magnesium aluminum silicate mineral derived layered magnesium aluminum bimetallic oxide-silicon oxide composite material as well as a preparation method and application of the magnesium aluminum silicate mineral derived layered magnesium aluminum bimetallic oxide-silicon oxide composite material. Magnesium / aluminosilicate minerals are successfully converted into the layered magnesium-aluminum bimetal oxide-silicon oxide composite material with a high specific surface area and a developed pore structure, and the layered magnesium-aluminum bimetal oxide-silicon oxide composite material is combined with nutrients through a simple and convenient fertilizer preparation process to prepare the slow-release fertilizer. The slow-release fertilizer has the advantages of cheap and easily available raw materials, simple and efficient preparation process, stable slow-release performance, soil improvement effect and the like, and provides an efficient and environment-friendly new way for development of the slow-release fertilizer; the method has important significance for promoting sustainable agricultural development and realizing high-value utilization of silicate minerals in the agricultural field.

The invention discloses preparation of a monatomic graphene type photo-thermal catalyst and application of the monatomic graphene type photo-thermal catalyst in catalyzing aldose to produce ketose, and the preparation comprises the following steps: loading a monatomic precursor (X) on a graphene type carbon material (GT) by adopting a solution impregnation method, further reducing the monatomic precursor into a corresponding monatomic (Y) by adopting a continuous oxidation-reduction method, the monatomic graphene type photo-thermal catalyst is obtained, and the monatomic graphene type photo-thermal catalyst is expressed as Ysg / GT. The catalyst is used for catalyzing other different aldoses (maltose, glyceraldehyde, erythritol and xylose) to produce corresponding ketose, the catalyst shows good catalytic activity and photo-thermal performance, and the ketose yield is larger than 50%. Finally, in the reusability research of the catalyst, the catalyst is found to have good activity and structural stability, the chemical equilibrium limit of the reversible reaction is broken through, the reaction rate is increased, and the catalyst can help to develop an efficient and green catalyst to open up a new way for the reversible reaction process.

The invention is suitable for the technical field of chemical industry, and provides a method for preparing polycarbonate diol by using a titanate catalyst, which comprises the following steps: step 1, transesterification: mixing dimethyl carbonate and 1, 6-hexanediol according to a molar ratio of 1.1-1.5: 1, adding isopropyl titanate which accounts for 0.01-2% of the total raw material amount as a catalyst, and reacting at the temperature of 50-60 DEG C for 1-3 hours; carrying out transesterification on the mixture; step 2, carrying out condensation polymerization to obtain a polycarbonate diol crude product; and step 3, carrying out reduced pressure purification, and removing the small molecular polymer and the residual titanium isopropoxide catalyst to obtain the high-purity polycarbonate diol. According to the present invention, the efficient titanium isopropoxide catalyst is used under the normal pressure, such that the preparation of the high-purity and narrow-molecular-weight-distribution polycarbonate diol is achieved, the operation condition is mild, the production efficiency is high, the cost is low, and the catalyst has characteristics of low boiling point, easy removal and environmental protection.

The invention belongs to the technical field of wireless optical communication, and discloses a cross-domain relay type radio frequency-laser communication module and a communication method, and the cross-domain relay type radio frequency-laser communication module is provided with a node construction module, a relay module, a synchronous control module, a modulation-demodulation module and a situation awareness module. According to the invention, a large-scale MIMO technology, DMD structure light modulation and AWI signal modulation and demodulation technology are utilized to autonomously design a large-bandwidth and high-secrecy radio-light transmission conversion module; a high-precision synchronous control module is designed by using a GD32 chip, and low-delay and low-error-code relay type cross-domain information interconnection is ensured. Meanwhile, a high-sensitivity area array CCD detector is combined to sense the position of a light spot, an underwater speckle recognition alignment algorithm is developed based on YoLoV8, azimuth information is output to assist semi-active alignment, and then low-cost, low-time-delay, high-speed, long-distance and large-capacity all-weather cross-domain communication in complex water areas is achieved.

The invention provides a sulfate-containing waste liquid treatment system and a sulfate-containing waste liquid treatment method for acrylonitrile and a combination device thereof, the system comprises at least two sets of waste liquid treatment units and a set of flue gas treatment unit, sulfate waste liquid is divided into two strands to enter the two sets of waste liquid treatment units for combustion, waste heat utilization and quenching purification, the discharged sulfur-containing flue gas is collected and enters a set of flue gas treatment unit, the sulfur-containing flue gas subjected to deep cooling, demisting and drying can be directly used for producing high-purity sulfuric acid, and a two-end and one-tail mode is adopted, so that the operation flexibility of the system is improved, and the treatment pressure is reduced. In the waste liquid treatment unit, a high-temperature reaction device adopts segmented air distribution, so that sufficient combustion of waste liquid is ensured, and SO2 loss is reduced; a special temperature field and structural design in the waste heat boiler can prevent the heat exchange device from scaling and blocking; a venturi scrubber is adopted in the quenching purification device to quench the flue gas, and a protective liquid film is formed on the contact interface of the high-temperature flue gas and a liquid phase, so that the temperature of equipment is effectively reduced, and corrosion of the high-temperature flue gas is prevented.

The invention belongs to the technical field of microorganisms, and particularly relates to a preservative and bacteriostatic metabiotic composition for food as well as a preparation method and application of the preservative and bacteriostatic metabiotic composition. The raw materials of the postbiotic composition comprise inactivated thalli of compound probiotics and metabolites of the compound probiotics; the compound probiotics comprise lactobacillus casei Zhang, bifidobacterium animalis subsp. Lactis V9, lactobacillus plantarum P-8 and lactobacillus plantarum PB-2. Through mutual cooperation of the four strains, a culture substrate can be more effectively converted into a plurality of organic acids and short-chain fatty acids with more excellent preservative and antibacterial effects, and the preservative and antibacterial effects of the post-biogen composition are improved.

The invention provides a high-performance all-solid-state electrolytic tank for producing hydrogen by electrolyzing water and a preparation method of the high-performance all-solid-state electrolytic tank. The preparation method mainly comprises the following steps: preparation of electrode powder: preparing (La0. 6Sr0. 4) 0.95 Co0. 2Fe0. 8O3-delta (LSCF) powder by adopting a liquid-phase synthesis method, and preparing MxCe1-xNyO2 powder by adopting a coprecipitation method for an electrode and an isolating layer; preparing a half cell by adopting a co-casting process; an isolating layer and an oxygen electrode are prepared by adopting a silk-screen printing technology, and high-content water vapor is introduced to realize hydrogen production by electrolyzing water. The prepared high-performance all-solid-state electrolytic tank has efficient water electrolysis hydrogen production catalytic activity and Faraday efficiency, can operate at the medium-high temperature of 650-850 DEG C, and can effectively reduce electric energy consumption and improve energy conversion efficiency.

The invention relates to the technical field of carbon dioxide recovery waste gas purification, in particular to waste gas purification equipment for carbon dioxide recovery and a purification method thereof.The waste gas purification equipment for carbon dioxide recovery comprises a shell assembly and further comprises a slag removal assembly, and the slag removal assembly comprises a fixed cylinder and a rotating part; the rotating component comprises a slag removal motor, a first stirring plate and a second stirring plate, a fan-shaped shell is fixedly mounted at the bottom of the outer cylinder, a water outlet part is arranged at the bottom of the fan-shaped shell, and a collecting component is arranged in the fan-shaped shell, and the waste gas purification method for carbon dioxide recovery comprises the steps of spraying, purification and the like. The device has the advantages that sediments in the lime water are continuously removed in the waste gas purification process, the negative influence of sediment accumulation on the sulfur dioxide removal efficiency is avoided, sulfur dioxide in the waste gas is effectively purified, corrosion of the sulfur dioxide to subsequent carbon dioxide recovery equipment is reduced, and the reliability and the safety of a whole waste gas treatment system are improved.

The invention provides a wind power high-voltage direct-current power transmission system, and belongs to the technical field of power transmission. The system comprises an intelligent wind driven generator, a modular converter station, an intelligent temperature monitoring direct current transmission line, a power grid friendly intelligent inverter station, and an intelligent regulation and control system integrating real-time data analysis, dynamic control and fault self-diagnosis. Through a maximum power point tracking algorithm and a self-adaptive control strategy, the system optimizes the wind energy conversion efficiency. The intelligent regulation and control system predicts wind power output by using a deep learning model and a random forest algorithm, dynamically adjusts voltage and current, and quickly responds to power grid demand changes. In addition, the system can quickly position and isolate faults, start a standby path and ensure continuous power supply. By adopting the wind power high-voltage direct-current power transmission system, the intelligent level of wind power high-voltage direct-current power transmission is improved, and the power transmission efficiency and the system stability are enhanced.

The invention discloses a CO2 epoxy coupling catalyst as well as a preparation method and application thereof. The CO2 epoxy coupling catalyst is prepared by grafting disulfonic ionic liquid on the surface of Zr < 4 + > coordination defect hierarchical pore UiO-66-NH2 and introducing metal halide salt. The preparation method comprises the following steps: S1, preparing and synthesizing Zr < 4 + > coordination defect hierarchical pore UiO-66-NH2; s2, enabling the hierarchical pore UiO-66-NH2 to react and combine with the disulfonic ionic liquid, so as to obtain an ILs (at) UiO-66-NH2 compound; and S3, reacting and combining the ILs-coated UiO-66-NH2 compound with metal halide salt, and drying to obtain the CO2 epoxy coupling catalyst. The CO2 epoxy coupling catalyst can be applied to a coupling reaction of CO2 and an epoxy compound to synthesize cyclic carbonate.

The invention provides a self-supporting carbon-based material loaded with iron nanoparticles as well as a preparation method and application of the self-supporting carbon-based material, and belongs to the technical field of preparation and application of an electrocatalyst for removing nitrate in sewage. The preparation method of the self-supporting carbon-based material loaded with the iron nanoparticles comprises the following steps: providing a carbon felt subjected to acid pickling and water bath heating; the method comprises the following steps: mixing an iron precursor and urea in a solvent to obtain a mixed solution containing iron salt; and mixing the carbon felt with the mixed solution containing the iron salt, and carrying out a hydrothermal reaction to obtain the self-supporting carbon-based material loaded with the iron nanoparticles. When the iron nanoparticle-loaded self-supporting carbon-based material provided by the invention is used as a cathode for electro-catalysis of nitrate-containing wastewater, a good removal rate and ammonia nitrogen selectivity are achieved, and the catalyst can keep relatively high nitrate nitrogen removal and ammonia nitrogen production effects under the conditions of acidity, neutrality, alkalinity and different initial nitrate concentrations; the method has the advantages of high removal efficiency, good ammonia nitrogen selectivity, strong stability and the like.

The invention provides a rapid photoresponse liquid crystal elastomer actuator and a preparation method thereof, and belongs to a liquid crystal elastomer actuator in the technical field of high polymer materials. The liquid crystal elastomer actuator is a uniformly-oriented single-domain high-entropy alloy liquid crystal polymer, and is obtained by longitudinally and uniformly stretching a multi-domain high-entropy alloy liquid crystal polymer and then initiating photopolymerization by ultraviolet light; the multi-domain high-entropy alloy liquid crystal polymer contains dispersed high-entropy alloy and is obtained by cross-linking liquid crystal monomers; the fast photoresponse liquid crystal elastomer actuator is of a hollow radial symmetrical structure. The quick light response liquid crystal elastomer actuator has a full-solar spectrum absorption response function, has excellent plasticity and self-recovery performance, is simple and convenient in manufacturing process, integrates sensing, driving and built-in feedback loops, has high light tracking precision and self-adaptive phototropism, and can be used in the field of light tracking. And a brand new technical approach is provided for research and development of the intelligent soft robot.

The utility model discloses a self-powered friction structure and an insole. The self-powered friction structure comprises a negative electrode structure which comprises a first negative electrode material layer, a conductive fabric layer and a second negative electrode material layer which are connected in sequence, and the conductive fabric layer is located between the first negative electrode material layer and the second negative electrode material layer; the positive electrode structure comprises a positive electrode material layer and a base layer which are connected with each other; the plurality of elastic columns are uniformly distributed and are connected with the second negative electrode material layer and the positive electrode material layer to form a hollow structure; the first negative electrode material layer and the second negative electrode material layer adopt an electric polarity material different from that of the positive electrode material layer; the negative electrode structure, the elastic column and the positive electrode structure are integrally formed. According to the self-powered friction structure and the insole, the self-powered friction structure is integrally formed, has the advantages of being high in durability and stable in voltage output, can be conveniently cut at will, and meets the requirement for large-scale production.

The invention belongs to the technical field of solid waste resource utilization, and relates to a method and system for preparing vaterite type calcium carbonate from waste incineration fly ash. The method comprises the following steps: by taking ammonium chloride as a leaching agent, leaching the waste incineration fly ash in a leaching agent solution, and then carrying out solid-liquid separation to obtain a calcium solution; and carrying out carbonation reaction on the calcium solution, an alkaline compound, sodium dodecyl benzene sulfonate and carbon dioxide under the conditions that the pressure intensity is 0.5-0.7 MPa and the temperature is 25-180 DEG C for 60-90 minutes to obtain the calcium carbonate. According to the method, high-quality vaterite type calcium carbonate can be prepared at a high conversion rate, the risk of fly ash is reduced, and mineralization of carbon dioxide is realized, so that waste is treated by waste, and green production is realized.

The invention provides a photovoltaic-based multi-load hybrid energy storage system. The photovoltaic-based multi-load hybrid energy storage system comprises a photovoltaic array, a capacitor C1, a capacitor C2, a capacitor C6, a first DC-DC converter, a second DC-DC converter, a third DC-DC converter, a fourth DC-DC converter, a DC bus, a supercapacitor bank, a storage battery pack, a first DC-AC converter, a second DC-AC converter, a filter LCL, a DC load and an AC load. The first DC-DC converter connected with the photovoltaic array is controlled by adopting an MPPT control method based on a conductance increment method, the second DC-DC converter and the third DC-DC converter which are connected with the super capacitor bank and the storage battery pack adopt a control method of voltage outer loop and current inner loop, and the first DC-AC converter connected with the power grid adopts three-phase current decoupling control. The control method of the fourth DC-DC converter connected with the direct-current load and the second DC-AC converter connected with the alternating-current load can be changed according to load requirements, the advantages can be reasonably exerted according to different application scenes, and the clean energy, namely light energy, can be better utilized.

The invention belongs to the technical field of high-valued utilization of biomass, and particularly relates to a production process for preparing hydrocarbon-rich bio-jet fuel through biomass staged pyrolysis coupling aldol condensation hydroconversion. According to the production process for preparing the hydrocarbon-rich bio-jet fuel by coupling biomass grading pyrolysis with aldol condensation hydroconversion, a grading pyrolysis technology is adopted, different temperature intervals are set according to pyrolysis characteristics of three major components of biomass, and pyrolysis steam with relatively enriched component content is collected step by step. The method effectively reduces the complexity of the bio-oil component, selectively prepares the pyrolysis steam rich in aldehyde and ketone and easy in aldehyde and ketonization through process regulation and control, effectively separates the pyrolysis component not easy in aldehyde and ketonization, obviously improves the yield of hydrocarbon compounds and the selectivity of the hydrocarbon compounds in graded pyrolysis of the bio-oil, and lays a foundation for subsequent directional conversion and product separation.

The invention relates to the technical field of photovoltaic hydrogen production, in particular to a high-efficiency photovoltaic hydrogen production power supply system which comprises a photovoltaic power generation system, a water electrolysis hydrogen production system, a control system and an energy storage device. The photovoltaic power generation system is composed of a photovoltaic assembly, a combiner box, a support, a foundation, a grounding device and the like and used for converting solar energy into direct-current electric energy. The water electrolysis hydrogen production system comprises an electrolytic cell, an electrode, a diaphragm, an electrolyte solution and the like and is used for converting direct-current electric energy into hydrogen and oxygen. The control system comprises a controller, a sensor, an execution mechanism and the like and is used for monitoring and controlling the operation state of the system. The energy storage device adopts a lithium ion battery technology, is used for storing redundant electric energy, has the advantages of efficient conversion, stable energy storage, intelligent control, environmental protection, energy conservation and the like, and provides a new technical approach for utilization of renewable energy sources.

The invention discloses a data center operation monitoring system and method based on an out-of-band technology and a medium, and the system comprises an out-of-band data collection module which is used for obtaining hardware state information, performance parameters and system logs of data center equipment through an out-of-band communication channel, and a data processing and analysis module which is connected with the out-of-band data collection module and is used for processing and analyzing the data center equipment. The system comprises a data processing and analyzing module for cleaning, converting and analyzing collected data, a monitoring alarm module for sending alarm information when a preset threshold value is exceeded according to an analysis result of the data processing and analyzing module, and a visual display module for displaying the analysis result to a user in a visual chart, graph and report form mode. And the configuration management module is used for configuring and managing various parameters of the monitoring system. Through innovative designs of out-of-band data acquisition, intelligent modules and the like, comprehensive data acquisition and accurate alarm and prediction are realized, the monitoring level of a data center is improved, the fault risk is reduced, the cost is saved, and stable and efficient operation is guaranteed.

The invention provides a method, system and device for collecting MODBUS device data based on an Internet of Things platform and a medium, and belongs to the technical field of data conversion, and the method comprises the following steps: obtaining point table information of a target MODBUS device, MODBUS channel information for data collection of the target MODBUS device, and point position information configuration; creating a product model, a device model and an object model for the target MODBUS device on the Internet of Things platform, and carrying out mapping relation binding with point location information of data acquisition of the target MODBUS device; reading data from the target MODBUS equipment according to the bound mapping relation, and storing the data according to a preset storage strategy; and converting the read target MODBUS equipment data into standard data which can be identified by the Internet of Things platform. The MODBUS equipment data is efficiently converted into the Internet of Things standard data, the cost period is shortened, and the method is compatible with a multi-equipment platform.