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721results about How to "Realize automatic control" patented technology

Adaptive photovoltaic module inclination angle adjusting method and system based on environmental conditions

The invention relates to the technical field of intelligent control and optimization of a photovoltaic power generation system, and discloses a self-adaptive photovoltaic module inclination angle adjusting method and system based on environmental conditions, and the method comprises the steps: obtaining short-term weather forecast data through a meteorological data interface, analyzing the weather forecast data, and predicting the environmental change in several hours in the future; monitoring pollution data of the surface of the photovoltaic module in real time through a sensor, and judging whether the pollution degree affects the power generation efficiency or not; according to the prediction result and the pollution degree, the inclination angle of the photovoltaic module is dynamically adjusted, the power generation efficiency under the upcoming illumination condition is optimized, the inclination angle of the photovoltaic module is dynamically adjusted in combination with short-term weather forecast data obtained by the meteorological data interface, and the power generation efficiency of the photovoltaic system under the complex environment is remarkably improved. The system can quickly respond to environmental changes, and efficiency loss caused by adjustment lag is avoided. And multi-factor collaborative optimization is realized, and the maximum power generation efficiency of the photovoltaic system under various conditions is ensured.
Owner:HUANENG RENEWABLES CORP LTD HEBEI BRANCH

AI-based pipe gallery fire operation hidden danger automatic identification method and device

The invention provides an AI-based pipe gallery fire operation hidden danger automatic identification method and device. The method comprises the steps of collecting data of a pipe gallery fire operation site in real time and preprocessing the data; identifying and comparing the check points by adopting an image detection classification algorithm based on a diffusion model and a large model distillation technology to obtain an identification and comparison result; and calling a pre-constructed LLM large language model, carrying out potential safety hazard identification on the preprocessed multi-modal data and the identification comparison result through a multi-modal input algorithm, and outputting a multi-modal fire operation comprehensive supervision report. A diffusion model and a large model distillation technology are utilized, data augmentation and data preprocessing are provided, image detection and classification of a pipe gallery fire operation site are realized, and real-time monitoring, automatic hidden danger identification and intelligent early warning of the pipe gallery fire operation site can be realized through LLM construction of an overall system framework and multi-modal input algorithm analysis. And the accuracy and efficiency of potential safety hazard identification are improved.
Owner:JIANYUAN FUTURE CITY INVESTMENT DEV CO LTD

Spraying device for grassland ecological soil remediation

The invention discloses a spraying device for grassland ecological soil remediation in the technical field of ecological remediation. The spraying device comprises a vehicle body, a storage assembly is installed at the top end of the vehicle body, a lifting cavity is formed in the vehicle body, a lifting assembly is arranged in the lifting cavity, a supporting plate is fixedly connected to the bottom of the lifting assembly, and a plurality of spraying assemblies are linearly arrayed at the bottom of the supporting plate; a pump assembly is arranged in the vehicle body; the spraying assembly and the storage assembly are both communicated with the pump assembly; and each spraying assembly comprises a rotating hole column fixedly connected to the bottom of the supporting plate, a spraying ring is annularly arranged on the surface of each rotating hole column, a plurality of spraying openings communicating with the storage assembly are formed in the bottom of each spraying ring, and a plurality of injection assemblies are arranged in each rotating hole column. Through cooperative assistance of the lifting assembly, the spraying assembly and the injection assembly, when the grassland surface soil is hard, spraying remediation can be conducted on the grassland soil surface, meanwhile, injection of liquid medicine can be completed by going deep into the grassland soil, and the ecological remediation effect of the grassland soil is improved.
Owner:GANSU QILIANSHAN NAT NATURE RESERVE MANAGEMENT CENT (GIANT PANDA QILIANSHAN NAT PARK GANSU PROVINCIAL ADMINISTRATION ZHANGYE BRANCH)

Plate heat exchanger cleaning system, plate heat exchanger and cleaning method

The invention relates to the technical field of heat exchangers, in particular to a plate heat exchanger cleaning system, a plate heat exchanger and a cleaning method. The fluid monitoring devices are installed at an inlet and an outlet of the plate heat exchanger respectively, connected with the control device and used for monitoring fluid data of the inlet and the outlet of the plate heat exchanger and transmitting the data to the control device. The high-pressure cleaning device is arranged between plate channels of the plate heat exchanger, is connected with the control device and is used for acquiring an instruction of the control device and cleaning the plate channels of the plate heat exchanger; the control device is used for receiving the fluid data of the fluid monitoring device and generating a cleaning instruction to the high-pressure cleaning device. Real-time monitoring and a response mechanism are combined, the fluid monitoring device, the high-pressure cleaning device and the control device are combined for control, the self-cleaning function of the plate heat exchanger is achieved, and the problems that an existing plate heat exchanger is difficult to clean and low in efficiency are solved.
Owner:HUANENG RIZHAO THERMAL POWER CO LTD +1

Underground water constant-speed sampling device

The invention provides an underground water constant-speed sampling device, and belongs to the technical field of underground water sampling, the underground water constant-speed sampling device comprises a box body, a water inlet pipe is horizontally arranged at the upper part in the box body, the left end of the water inlet pipe penetrates through the left side wall of the box body and is connected with a water suction pump, the right end of the water inlet pipe is provided with a pressure relief assembly, and the bottom of the water inlet pipe is vertically provided with a plurality of water outlet pipes; the underground water constant-speed sampling device comprises a box body, a water inlet pipe and a plurality of water outlet pipes, the water outlet pipes are sequentially arranged in the box body at intervals in the length direction of the water inlet pipe, a sampling bottle is placed below each water outlet pipe, and a first fixing assembly is arranged at the position, located at each water outlet pipe, of the water inlet pipe. The problems that sampling personnel are inconvenient to sample and the working efficiency is low are solved, stable control over the water flow speed in the underground water sample collection process is achieved, automatic control over the sample collection amount is achieved, and air bubbles generated by air mixing in the sampling process are effectively avoided.
Owner:陕西省环境监测中心站 +1

Emulsion pump station frequency conversion control system and application method thereof

PendingCN119572472AImprove liquid supply efficiencyreduce consumptionMining devicesPump controlAutomatic controlSystem pressure
The invention relates to the technical field of electro-hydraulic control, and discloses an emulsion pump station frequency conversion control system which comprises an emulsion pump station, a pump station initialization subsystem, a fault detection subsystem, a pressure sensor, a controller, a frequency conversion device, an emulsion pump station switching subsystem, an emulsion pressure setting subsystem and an emulsion main pipeline. The invention further provides an application method of the emulsion pump station frequency conversion control system. The application method comprises the following steps that S1, a program is initialized; the emulsion supply efficiency of the fully mechanized coal mining face of the coal mine can be improved, the liquid supply pressure can be stabilized, the power consumption in the liquid supply system can be reduced, the service life of frequency conversion control system equipment of the emulsion pump station can be prolonged, automatic control of the emulsion pump station can be realized, the labor cost can be reduced, and the working efficiency and reliability can be improved; unnecessary property loss is reduced, and important technical guarantee is provided for efficient and safe production of the coal industry and stable development of the coal industry.
Owner:WUXI WEISHUN COAL MINE MASCH CO LTD

Drill rod screwing-on and screwing-off control system and drill rod screwing-on and screwing-off control method

The invention provides a drill rod screwing-on and screwing-off control system and a drill rod screwing-on and screwing-off control method. The drill rod screwing-on and screwing-off control system comprises a driving motor, a hydraulic pump, a hydraulic oil tank, a first speed regulating valve, a proportional reversing valve, a hydraulic control reversing valve, a rotary pipeline, a feeding and pulling pipeline, a communicating pipeline, a drill rod rotary assembly and a feeding and pulling assembly. When the proportional reversing valve controls the hydraulic rotary motor to rotate forwards, the hydraulic control reversing valve controls the push-pull oil cylinder to feed the drill rod; when the proportional reversing valve controls the hydraulic rotary motor to rotate reversely, the hydraulic control reversing valve controls the push-pull oil cylinder to pull the drill rod; the driving motor, the hydraulic pump, the first speed regulating valve, the drill rod rotating assembly and other assemblies are arranged to work in a matched mode, automatic control over the screwing-on and screwing-off processes of the drill rod is achieved, and the efficiency of the screwing-on and screwing-off processes of the drill rod is improved; the problems that in the screwing-on and screwing-off processes of the drill rod, screw threads are seriously abraded, and the execution failure rate of the screwing-on and screwing-off processes is high are well solved.
Owner:SHENHUA SHENDONG COAL GRP +1

Automatic coating production line

The invention discloses an automatic film coating production line, and relates to the field of glass film coating production technology.The automatic film coating production line comprises a glass conveying line, a carrier plate conveying line and a film coating conveying line, glass to be coated is transferred to a carrier plate conveyed by the carrier plate conveying line through transfer equipment, and the carrier plate conveying line is connected with the film coating conveying line; the film coating conveying line comprises a carrier plate transfer manipulator assembly and a plate unloading machine, the plate unloading machine is used for storing glass and carrier plates after film coating is completed, and the carrier plate transfer manipulator assembly is used for grabbing the carrier plates carrying glass to be coated from the carrier plate conveying line and conveying the carrier plates carrying the glass to be coated to the film coating equipment; and the carrier plate transfer manipulator assembly also grabs the carrier plate carrying the coated glass from the coating equipment and conveys the carrier plate to the plate unloading machine. According to the technical scheme, the automatic coating production line can achieve automatic coating, manual transfer of carrier plates and glass is not needed, mechanical damage is avoided, and the production efficiency is improved.
Owner:DONGGUAN NODA INTELLIGENT EQUIP CO LTD

Five-axis linkage high-speed and high-precision machining center

The invention relates to the field of machine tools, in particular to a five-axis linkage high-speed high-precision machining center which comprises a machine base, a three-axis moving module and a main shaft device are arranged at the top of the machine base, and the three-axis moving module is used for driving the main shaft device to move in the three different directions of the X axis, the Y axis and the Z axis. The main shaft device comprises at least one main shaft capable of rotating and / or feeding and is used for carrying out machining operations such as cutting, drilling and milling on a workpiece; a cradle type rotary table device and an automatic tool changing device are arranged at the bottom of the machine base, the cradle type rotary table device is used for achieving adjustment of two rotational freedom degrees of a workpiece in the machining process, and the automatic tool changing device is used for automatically changing tools on the main shaft device. According to the multi-axis linkage drilling and milling device, multi-axis linkage, high-speed and high-precision cutting, drilling, milling and other machining operations can be carried out on workpieces.
Owner:DONGGUAN AFMING CNC EQUIP CO LTD

CFB boiler flue gas denitration automatic control method and system

The invention discloses a CFB boiler flue gas denitration automatic control method and system. The control method comprises the following steps: S1, monitoring and controlling a CFB boiler by taking an operator station display as a center; s2, a nitrogen oxide emission value of a boiler tail flue in the CFB boiler is collected in real time to serve as a feedback value; s3, the feedback value is compared with a set target emission value, and the deviation value of nitric oxide at the flue gas outlet and the change rate of the deviation value are calculated; s4, constructing a fuzzy relation between the three PID parameters and the deviation and the change rate of the deviation value, and obtaining a new PID parameter; s5, the stroke of an ammonia water pump is dynamically adjusted according to the new PID parameters, and the amount of the urea solvent sprayed into the boiler is controlled; and S6, the stroke of a dilution water pump and the flow of dilution water are regulated and controlled. By means of early warning, control over spraying of the reducing agent and burdening in the boiler is achieved, it is guaranteed that the denitration system can change along with changes of the boiler operation load, and long-term, reliable and safe operation of boiler denitration is achieved.
Owner:HUBEI JUNYUN TECH CO LTD

O-shaped ring whole mold full-detection equipment and detection method thereof

The invention discloses O-shaped ring whole mold full-inspection equipment and a detection method thereof. The O-shaped ring whole mold full-inspection equipment comprises a detection table; the mounting table is fixedly mounted at the top of the detection table; the translation turnover mechanism is fixedly connected to the top of the detection table; the fixing tool is fixedly mounted in the translation turnover mechanism; the detection mechanism is located at the top of the fixing tool, and the top of the detection mechanism is fixedly connected with the bottom of the mounting table; and the positioning mechanism is located at the bottom of the fixing tool, and the bottom of the positioning mechanism is fixedly connected with the top of the detection table. The invention aims to solve the technical problems that when the existing O-shaped ring detection equipment is used for detecting the surface defects of the O-shaped ring, the O-shaped ring and a die of the O-shaped ring are inconvenient to automatically turn over and discharge, and manual work is needed to participate in turning and discharging operation, so that the labor cost is increased, and the detection efficiency of the surface defects of the O-shaped ring is reduced.
Owner:HUIZHOU DUYITE PRECISION PROD CO LTD

Fuming furnace smelting process control method and system, terminal and readable storage medium

The invention discloses a fuming furnace smelting process control method and system, a terminal and a readable storage medium. The method comprises the following steps: constructing a normal association relationship among initial multi-source data in a stable operation state of a fuming furnace; collecting current multi-source data of the fuming furnace in a current operation state; identifying association deviation according to the normal association relationship and the current multi-source data; identifying an abnormal state according to the correlation deviation; and according to the abnormal state, the smelting area is finely controlled. According to the control method and system for the smelting process of the fuming furnace, the normal incidence relation among the multi-source data is constructed, the abnormal state can be recognized more accurately, then the smelting area is finely controlled, and therefore the control accuracy of the smelting process can be improved, unnecessary energy consumption and process fluctuation can be reduced, and the smelting process can be controlled more accurately. And meanwhile, local abnormity can be rapidly and effectively eliminated, further deterioration of the local abnormity is prevented, and automatic control over the smelting process of the fuming furnace can be achieved.
Owner:JIANGXI COPPER TECHNOLOGY RESEARCH INSTITUTE CO LTD +1

Motion control signal generation method, target image acquisition method, processing method and imaging system

The invention provides a motion control signal generation method, a target image acquisition method, a target image processing method and an imaging system. The motion control signal of the imaging device is generated by acquiring the current pose of the imaging device, the current pose of the target and the stored third pose information and fourth pose information, so that the imaging device is automatically adjusted to the target pose position, and accurate overlapping of the imaging space and the target is ensured. Through the data processing process, the control device can calculate the ideal position and angle of the imaging device in real time and adjust the imaging device to the best imaging state stored in advance. Compared with a traditional manual pose adjusting mode, the method has the advantages that automatic control is achieved, the repeated adjusting time in the operation process is remarkably shortened, and the efficiency of adjusting the imaging device to the optimal image collecting position is greatly improved.
Owner:BEIJING TINAVI MEDICAL TECH

Online monitoring system and method for concentration of aluminum oxide produced by aluminum electrolysis

The invention discloses an aluminum electrolysis production alumina concentration on-line monitoring system, which comprises a sensor unit, a data acquisition module, a data analysis module, a control and display interface and a communication module, the data acquisition module is connected with the data analysis module through a local area network, the data analysis module is connected with the control and display interface through the local area network, and the communication module is connected with the data analysis module through the output end of the communication interface. The invention provides the system and the method capable of accurately monitoring the concentration of aluminum oxide in the aluminum electrolysis process in real time, so that the production efficiency and the product quality are improved, the production cost is reduced, and the system and the method have important practical value and popularization and application prospects.
Owner:ANOMETAL ALUMINIUM CO LTD

Concrete production line process flow on-line monitoring management system

The invention relates to the technical field of electronic engineering, and discloses a concrete production line process flow on-line monitoring management system, which comprises a proportion detection module used for calculating the batching proportion of raw materials, constructing the proportion detection module of the raw materials, and detecting the actual proportion data of concrete; the data acquisition module is used for configuring a sensor network of the technological process to acquire technological parameters of the technological process and concrete image data in real time; the final strength module is used for analyzing the final strength of the concrete; the production quality analysis module is used for respectively extracting workability characteristics and uniformity characteristics of the concrete image data, analyzing the workability of the concrete, analyzing the uniformity of the concrete and analyzing the production quality of the concrete; and the technological process optimization module is used for determining control optimization parameters of the technological process and executing optimization control of the technological process. The precise effect of online monitoring and management of the concrete production line technological process can be improved.
Owner:LINYI JINLIN CONCRETE CO LTD

Nickel-silicon-boron nitride abradable sealing coating, application and preparation method of nickel-silicon-boron nitride abradable sealing coating

The invention discloses a nickel-silicon-boron nitride abradable sealing coating and application and a preparation method thereof, the abradable sealing coating comprises a bottom layer material in direct contact with a base material and a surface layer material located on the surface of the bottom layer material, the bottom layer material is nickel-chromium alloy, and the surface layer material is nickel-silicon-boron nitride. When the coating is prepared, automatic plasma spraying equipment is adopted, firstly, nickel-chromium alloy powder is adopted as a bottom layer material to be sprayed on the surface of a base material, and then nickel-silicon-boron nitride powder is adopted as a surface layer material to be sprayed on the surface of the bottom layer material. The prepared nickel-silicon-boron nitride abradable sealing coating can be applied to low-pressure turbine discs, high-pressure turbine guiders and sealing seats of aero-engines and gas turbines. According to the method, a traditional manual flame spraying operation mode is replaced, the safety is improved, the material utilization rate and the spraying efficiency are improved, the preparation period is shortened, the material cost is reduced, and the structure property, the bonding strength and the thermal shock resistance of the abradable seal coating are improved.
Owner:CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD

Power plant waste heat recovery system and recovery method

According to the power plant waste heat recovery system and method, the types of recovered power plant waste heat are very comprehensive, and the power plant waste heat is recycled in a stepped mode. All waste heat, including flue gas waste heat, circulating water waste heat, furnace wall waste heat and slag waste heat, of the thermal power plant is recovered at the same time. In addition, different heat pumps and different heat exchangers are selected according to different waste heat characteristics, all recoverable waste heat is efficiently recovered, and the energy conversion efficiency of a power plant is improved. The cascade recycling of the waste heat of the power plant comprises three recycling modes of a low-pressure steam turbine generator set, a low-boiling-point working medium generator set and a heat supply pipeline. According to the method, on one hand, the applicability of the waste heat recovery system of the power plant is improved, the method is suitable for different types of thermal power plants, and is also suitable for the influence of different seasons and environment temperature factors on waste heat, and on the other hand, the waste heat is recycled to the maximum extent according to comparison and matching of the temperature and pressure set value and the measured value of the recycling equipment, and waste of the waste heat is avoided.
Owner:SHIHEZI UNIVERSITY

Aluminum alloy standard sample production method and system

The invention relates to the technical field of aluminum alloy production data processing, and provides an aluminum alloy standard sample production method and system, and the method comprises the steps: obtaining a data traceability table, substituting the data traceability table into a preset production model, and generating control parameters of each production unit; according to the system, automatic control over the steps of a cooling device, a preheating mold, molten aluminum treatment, casting, cooling, cutting and the like is achieved, the system comprises a casting preparation unit, a cooling device unit, a preheating mold unit, a molten aluminum treatment unit, a casting unit, a cooling unit, a cutting unit and a data consulting unit, traceability and visualization of production data are achieved, and the production efficiency and the product quality are improved; and the intelligence and transparency of the production process are enhanced, and comprehensive optimization is provided for production of the aluminum alloy standard sample.
Owner:DELTA ALUMINUM IND

Electrodialysis equipment

The invention discloses electrodialysis equipment, and belongs to the field of water treatment devices. The spraying assembly is matched with the electrodialysis assembly; the hydraulic cylinder is connected with the electrodialysis assembly; an oil tank; one end of the pump body is communicated with the oil tank; the inlet end of the one-way valve is communicated with the other end of the pump body, and the outlet end of the one-way valve is communicated with the hydraulic cylinder; one end of the pressure sensor is communicated with the oil tank, and the other end of the pressure sensor is communicated between the outlet end of the one-way valve and the hydraulic cylinder; one end of the electromagnetic valve is communicated with the oil tank, and the other end of the electromagnetic valve is communicated between the outlet end of the one-way valve and the hydraulic cylinder; and the controller is electrically connected with the pressure sensor and the electromagnetic valve. The invention has the technical effects that the pressure can be automatically controlled conveniently, the pressure is prevented from being too large or too small, and the cleaning performance is good.
Owner:HANGZHOU BLUETEC ENVIRONMENTAL TECH

Electronic one-tube automatic detection system and detection method for streptococcus agalactiae or gonococcus

The invention provides an electronic one-tube automatic detection system and a detection method for streptococcus agalactiae or gonococci, through an LAMP and CRISPR-Cas12a combined mediated one-tube visual streptococcus agalactiae or gonococci detection system, in combination with an electronic automation technology, an LAMP reaction mixture and a CRISPR-Cas12a reaction mixture are mixed to form a one-tube reaction system, and the one-tube reaction system is used for detecting the streptococcus agalactiae or gonococci. Automatic mixing, preheating reaction and fluorescence detection of various detection reagents and samples are realized, and visual display is performed on detection results by adopting visual equipment. Visual detection of bacteria is achieved by detecting fluorescence signals, rapid positive or quantity detection results can be provided for patients and other users, and clinical detection efficiency is improved.
Owner:ZHEJIANG XIAOSHAN HOSPITAL

Heat dissipation device for electrical cabinet

The invention relates to a heat dissipation device for an electrical cabinet, and relates to the technical field of heat dissipation of electrical cabinets, the heat dissipation device comprises a cabinet body and a filter screen, air holes are formed in the side wall of the cabinet body in a penetrating mode, the filter screen is fixedly installed in the air holes, a mounting frame is arranged on the side wall of the cabinet body, and a sliding frame is arranged on the mounting frame in a sliding mode in the vertical direction; a sliding assembly used for driving the sliding frame to slide is arranged on the mounting frame, a brush roller is rotationally arranged on the sliding frame, the peripheral wall of the brush roller can abut against the outer side of the filter screen, a cleaning motor is fixedly arranged on the sliding frame and used for driving the brush roller to rotate, and a cleaning assembly is arranged on the cabinet body. And the cleaning assembly is used for cleaning the brush roller. The electric cabinet has the advantages that dust accumulated on the filter screen can be cleaned conveniently, the filter screen is prevented from being blocked by the dust, and the heat dissipation effect of the electric cabinet is guaranteed.
Owner:JIANGSU GUOKONG POWER EQUIP CO LTD

Intelligent regulation and control method for moisture content of earthen archaeological site

The invention belongs to the field of cultural relic protection, and particularly relates to an intelligent regulation and control method for the moisture content of an earthen archaeological site. The method comprises the steps that a precipitation well is dug near the earthen ruins, and a water suction pump is arranged in the precipitation well; then adjusting the underground water level of the earthen ruin according to the following steps: (1) acquiring underground water level data near the earthen ruin; (2) judging whether the underground water level is higher than a set limit value according to the underground water level data; and (3) when the underground water level is higher than the underground water level limit value, a water pump in the dewatering well starts a water pumping mode until the underground water level data reach the underground water level limit value. In order to ensure that the moisture content of the earthen archaeological site is stabilized at a certain numerical value, on one hand, when the moisture content is too high, the underground water level is intelligently controlled, then capillary water is controlled to rise, and a water source is cut off from the source, and on the other hand, when the moisture content is too low, moisture evaporation in the earthen archaeological site is effectively relieved by spraying a magnesium acrylate solution with a specific concentration; the constancy of the moisture content of the earthen ruins is ensured.
Owner:THE SECOND CONSTR OF CHINA CONSTR EIGHTH ENG DIV +2

Automatic coating equipment and method for variable-thickness ultralow-density heat-proof coating

The invention relates to automatic coating equipment and method for a variable-thickness ultra-low-density heat-proof coating, and belongs to the technical field of surface engineering heat protection coatings. The automatic coating equipment comprises a spraying robot, a spraying programming system, a servo rotating table, an automatic coating viscosity controller, a flow controller, an automatic terahertz thickness measuring system, an industrial personal computer and the like; performing spraying program programming on the workpiece through a spraying programming system; the spraying robot clamps a spraying gun, and a spraying program is operated to achieve automatic spraying of paint; automatic control of the viscosity of the coating is realized through the automatic viscosity controller of the coating; the flow controller is used for realizing stable control and output of the coating discharge amount; a terahertz automatic thickness measuring system is used for measuring the thickness of a wet film and the thickness of a dry film of the coating; the whole programmed control of the spraying robot, the terahertz automatic thickness measuring system, the rotary table, the guide rail, the flow and the thickness measuring system is controlled through the industrial personal computer, the automatic spraying device is suitable for automatic spraying of the planetary detector back cover structure, and the thickness error is smaller than or equal to + / -3%.
Owner:AEROSPACE RES INST OF MATERIAL & PROCESSING TECH

A nonlinear model predictive control method for low-temperature multi-effect distillation desalination system

The invention discloses a nonlinear model predictive control method for a low-temperature multi-effect distillation seawater desalination system, which relates to the technical field of seawater desalination. The specific steps are: defining system parameters, deriving and establishing a dynamic model of the system, designing a nonlinear model predictive control controller, and designing a low-temperature multi-effect distillation seawater desalination system experiment. Considering the thermodynamic characteristics of the low-temperature multi-effect distillation seawater desalination system, a nonlinear MPC algorithm equation is established, and a NMPC module is used to calculate the power steam flow rate W. ms With the feed seawater flow rate W sw Two major types of control inputs are used to achieve automatic control of the maximum water production ratio. The method of the present invention can effectively overcome the uncertainty, nonlinearity and parallelism of the process, and conveniently handle various constraints in the controlled variables and manipulated variables in the process to achieve a control effect with good stability and strong robustness.
Owner:SHANDONG UNIV

Speckle measurement method based on spectrum

The invention provides a speckle measurement method based on a spectrum, which is used for measuring the single-dispersion speckle contrast ratio of a measured picture, and comprises the following measurement steps: S1, starting a color speckle tester and measured measurement equipment, projecting a preset measured picture by the measured measurement equipment, and preheating the equipment; s2, acquiring spectral information of a measured picture projected by the measured measuring equipment by using the spectral measuring equipment; s3, selecting a monochromatic optical filter according to the characteristic wavelength in the spectral information obtained in the step S2 by means of a wavelength-optical filter transmittance change curve; s4, configuring the optical filter selected in the step S3 into an optical path of a color speckle tester; s5, readjusting the focal length of the lens of the color speckle tester to avoid the chromatic aberration defect of the lens; s6, adjusting the integral time of the color speckle tester to prevent the collected speckle image from having an overexposure or underexposure phenomenon; and S7, collecting a speckle image of the measured picture, and calculating the single-dispersion speckle contrast of the speckle image.
Owner:SHANGHAI VISIRAY PHOTOELECTRIC TECHNOLOGY CO LTD

Microphone time delay test method and device, equipment, storage medium and product

The invention relates to the technical field of electronic product testing, in particular to a microphone time delay testing method and device, equipment, a storage medium and a product. The method comprises the following steps: inputting a recording command to a to-be-tested device based on an ADB command window; according to the recording command, controlling the to-be-tested device to play a preset audio, and controlling the to-be-tested device to synchronously record to obtain a recorded audio; comparing the recorded audio with a preset audio; and determining the microphone time delay of the to-be-tested equipment according to the comparison result. According to the method, the automatic control of the equipment is realized by using the ADB command, the dependence on expensive hardware equipment is reduced, and the test cost is reduced. Meanwhile, the test efficiency is improved through the synchronous control automatic test step of the recording and playing processes, and the high precision of the microphone time delay test is ensured through the contrastive analysis mode, so that the test cost is reduced, and the test efficiency and precision are improved.
Owner:SHENZHEN EMDOOR DIGITAL TECH

Method and control system for extracting active ingredients of artemisia apiacea through enzymolysis-gradient combination

The invention discloses a method and a control system for extracting active ingredients of sweet wormwood by enzymolysis-gradient combination, and particularly relates to the technical field of plant extraction, a high-sensitivity sensor is used for collecting key parameters in enzymolysis reaction, key process parameter characteristics are extracted from high-dimensional data through principal component analysis and a clustering algorithm, and the active ingredients of the sweet wormwood are extracted; establishing a reaction mode library of different extraction risk scores, and identifying an abnormal reaction mode causing artemisinin extraction; evaluating and extracting a risk score in real time by combining real-time and historical data based on a machine learning model, and triggering early warning when the risk exceeds a preset threshold value; the intelligent feedback and prevention and control module applies a control algorithm, automatically adjusts reaction conditions according to risk scores, and forms closed-loop feedback; the concentration and efficiency of artemisinin are monitored in real time through an online high performance liquid chromatography or mass spectrometry system, a verification result is fed back to the extraction risk prediction model, and the system performance is continuously optimized.
Owner:GUANGZHOU COHOO BIOTECHNOLOGY CO LTD

Load identification method of convolutional neural network based on improved VI trajectory

The invention discloses a convolutional neural network load identification method based on an improved VI trajectory, and relates to the technical field of power load identification. On the basis of obtaining an independent load current waveform, a voltage waveform is combined, a traditional single-cycle VI track is improved into a mode of drawing a multi-cycle VI track, meanwhile, instantaneous power, a current change rate and average value characteristics of multi-cycle current effective values are introduced, dual color coding improvement of the VI track and the background of the VI track is achieved, and the multi-cycle VI track is obtained. Therefore, the load characteristic characterization capability contained in the VI track is improved. And taking the improved VI track as the input of a VGGNet network framework in the CNN to realize load identification. Aiming at the influence of VGGNet network hyper-parameters on the identification precision, a particle swarm optimization (PSO) algorithm is selected to optimize the hyper-parameters in a network training process so as to improve the load identification accuracy of the model.
Owner:SHANDONG JIANZHU UNIV

Injection molding equipment and molding process of carbon fiber modified nylon

The present invention discloses an injection molding device and molding process of carbon fiber modified nylon, which relates to the field of nylon injection molding, including a base, an upper mold body, an injection port and a mobile controller, wherein an upper mold body is arranged above the base, and an injection port is arranged inside the upper mold body, and a mobile controller is connected to the upper mold body to control the movement of the upper mold body, a lower mold body is arranged below the upper mold body, and a mold core is arranged below the upper mold body, and four groups of lower mold enclosure blocks are arranged inside the lower mold body, and the lower mold enclosure block and the upper mold body cooperate to form a molding cavity, and a horizontal sliding structure is formed between the lower mold enclosure block and the lower mold body. The injection molding device of carbon fiber modified nylon can separate the side of the subsequent product from the mold body in the horizontal direction through the movable arrangement of the lower mold enclosure block, thereby facilitating the demoulding of the subsequent product and avoiding the side of the product from being subjected to greater resistance or being deformed by the top during vertical demoulding.
Owner:RUIAN JUNCHENG PLASTIC MFG CO LTD