185results about How to "Improve control accuracy" patented technology

The invention relates to a control system and a control algorithm for improving the stability of a laser direction, and discloses a fast reflector control system and algorithm based on a bidirectional recurrent neural network fusing a self-attention mechanism and PID (Proportion Integration Differentiation) control. The core of the invention lies in that neural network prediction and PID control are innovatively combined to form an intelligent prediction-feedback control system. According to the system, a bidirectional recurrent neural network based on a self-attention mechanism is adopted for prediction, a comprehensive error concept is introduced to fuse an actual error and a prediction error, and intelligent self-adaptive adjustment of PID parameters is achieved. The system can significantly improve the precision of laser beam direction control, the anti-interference capability and the dynamic response speed, and has a wide application prospect.

The invention discloses a fishery water body environment monitoring equipment control method, and relates to the technical field of equipment control, and the method comprises the steps: obtaining a first-stage monitoring region and a second-stage monitoring region; obtaining a first-stage monitoring equipment layout array and a second-stage monitoring equipment layout array; setting a monitoring bandwidth; obtaining a primary monitoring index set sequence and a secondary monitoring index set sequence; obtaining a primary monitoring area water body state coefficient and a secondary monitoring area water body state coefficient; and carrying out water body environment monitoring on the primary monitoring area and the secondary monitoring area according to the adjusted monitoring bandwidth. The technical problems that in the prior art, the fitting degree of fishery water environment monitoring equipment control and the actual water environment condition is low, and the control reliability is poor are solved, and the technical effects that the fitting degree of the monitoring bandwidth of the water environment monitoring equipment and the actual condition is improved, and the equipment control accuracy is improved are achieved.

The invention discloses a power grid voltage optimization method and device based on hierarchical constraint reinforcement learning, and relates to the technical field of power grid voltage optimization. According to the invention, the hierarchical reinforcement learning model under the long time scale and the short time scale is constructed, and the condition of the power grid voltage is divided into two time scales for adjustment, so that the power grid voltage is optimized in a layer-by-layer coordination and step-by-step optimization mode. The short-time-scale voltage optimization model makes up the deficiency of the long-time-scale reinforcement learning model due to the uncertainty of the load and the distributed power supply, thereby improving the accuracy of power grid voltage regulation. Layered training is carried out on the initial layered voltage optimization model through a layered constraint reinforcement learning solution algorithm, global collaborative optimization of the power grid voltage is effectively realized, and the search space is effectively reduced through a constraint Markov decision model, so that the calculation efficiency and accuracy of the layered voltage optimization model can be improved, and the optimization efficiency of the power grid voltage is improved. And the control efficiency and accuracy of the power grid voltage are improved.

The embodiment of the invention provides a denitration parameter continuous monitoring system and method based on single furnace and double flues, and belongs to the technical field of denitration. The system comprises grid method sampling devices which are independently arranged corresponding to all flues and are used for monitoring flue gas state parameters in the corresponding flues based on the working state at the current moment; wherein the working state at the current moment is polling sampling, mixed sampling or reverse blowing; at least one grid method sampling device in each flue is in a mixed sampling working state at the same moment; and the control device is used for obtaining the NOx concentration in each flue at the current moment based on the flue gas state parameters in each flue. According to the scheme, comprehensive and continuous monitoring of denitration parameters is ensured, the control accuracy of the ammonia spraying amount is improved, the risks that the ammonia escape rate is too high and the NOx concentration exceeds the standard are avoided, and the stability and the environmental protection effect of the system are improved.

The invention provides a liquid cooling heat management system and an energy storage cabinet, and belongs to the technical field of liquid cooling heat dissipation. The liquid cooling heat management system comprises a plurality of compressors, a condenser, a plurality of throttle valves, an evaporator, a liquid cooling plate, a radiator and a plurality of fans; each compressor is connected between one input end of the condenser and one output end of the evaporator through a pipeline, and each throttle valve is connected between one output end of the condenser and one input end of the evaporator through a pipeline; a pipeline connected with the liquid cooling plate penetrates through the evaporator, the liquid cooling plate is used for being in contact with the battery, a pipeline connected with the radiator penetrates through the condenser, and the multiple fans are arranged at the radiator; a controller of the liquid cooling heat management system is used for adjusting the number and the rotating speed of the running compressors in the multiple compressors and adjusting the number and the opening degree of the opened throttling valves in the multiple throttling valves according to the temperature of the battery and the temperature of the refrigerating fluid flowing into the liquid cooling plate. According to the invention, the power consumption of the liquid cooling heat management system can be reduced.

The invention provides an intelligent active suspension system of a centrifugal machine, which belongs to the technical field of centrifugal machines and comprises an air spring mechanism, an actuating mechanism arranged beside the air spring mechanism, a control mechanism arranged beside the actuating mechanism, and an air supply mechanism arranged beside the spring mechanism. An anti-toppling structure is arranged inside or outside the air spring mechanism, a sensor body is arranged inside the air spring mechanism, the air spring mechanism is composed of an air spring body, a spring upper mounting plate and a spring lower mounting plate, and the spring upper mounting plate is fixed to the top of the air spring body. The advantages can be fully exerted, the problems existing in an existing centrifugal machine vibration isolation technology are effectively solved, the overall performance and reliability of the centrifugal machine are improved, and more stable, efficient and safe technical support is provided for the centrifugal separation process in industrial production; and the use height and the vibration isolation effect of the intelligent active suspension of the centrifugal machine can be adjusted according to use requirements.

The invention discloses a single-stage AC-DC converter soft switching modulation method based on frequency conversion, and belongs to the field of electronic power, and the method comprises the steps: selecting a full-bridge part of a single-stage AC-DC converter as a modulation mode of dual PWM and phase shift; circuit parameters, such as high-frequency frequency, inductance and the like, of rated working conditions are designed, and soft switching of all switches is achieved; and frequency conversion is adopted in a power frequency period, so that the maximum current ripple is reduced, and the efficiency is improved. Soft switching is realized through circuit parameters and a modulation method, and ripple minimization on the basis of soft switching is realized through a frequency conversion strategy; according to the method, control is simple, independent decoupling control for maintaining output power, alternating current sine output and bus voltage stability is achieved, and for application occasions pursuing high efficiency and high power density, the switching loss can be effectively reduced, the efficiency of the converter is improved, and meanwhile the operation stability and control accuracy of the converter are improved.

The invention discloses a laboratory management system based on a large model, relates to the technical field of laboratory management, solves the technical problem that the laboratory network security cannot be detected in the laboratory use stage in the prior art, and particularly relates to a maintenance performance evaluation unit which is used for evaluating the laboratory performance maintenance. Environment maintenance data and position maintenance data are collected, and whether the maintenance performance is normal is deduced according to data analysis; the network security evaluation unit is used for carrying out security evaluation on the experimental record network of the laboratory, collecting flow control information and data control information, and analyzing and deducing whether the network security evaluation is normal or not according to the information; and the experiment safety evaluation unit is used for carrying out experiment safety evaluation on the laboratory, collecting medicament safety information and electric power safety information, and deducing whether the experiment safety evaluation is normal or not according to information comparison, if so, completing laboratory management, and if not, carrying out experiment safety control.

The invention discloses an equipment control method and device, electronic equipment and a readable storage medium. The method comprises the steps of obtaining a target control text for equipment and role information, skill information and constraint information for a target large model; the role information is used for indicating a function range covered by the target large model; the skill information is used for indicating a content range satisfied by the instruction information predicted by the target large model; the constraint information is used for indicating constraints needing to be followed when the target large model predicts the instruction information; constructing a target cue word according to the role information, the skill information and the constraint information; inputting the target cue word and the target control text into the target large model to obtain target instruction information predicted by the target large model; and controlling the equipment according to the target instruction information. According to the method provided by the invention, the accuracy and success rate of equipment control are relatively high.

The invention is suitable for the technical field of automobiles, and provides a vehicle control method and device, a vehicle-mounted terminal and a vehicle, and the method comprises the steps: determining a dangerous case type and a dangerous case level when a dangerous case is sensed in an area where the vehicle is located through an intelligent agent of the vehicle; obtaining processing demand information corresponding to the dangerous case type; the processing demand information is used for describing information required for dealing with the dangerous case; generating a vehicle control mode based on the dangerous case level and the processing demand information; and controlling the vehicle based on the vehicle control mode through the automatic calling tool function of the intelligent agent. Compared with the prior art, the method and the device have the advantages that the control mode of the vehicle at the moment can be flexibly and specifically determined according to the dangerous case type and the dangerous case level, so that the vehicle is subsequently controlled according to the control mode, and the control accuracy of the vehicle is improved.

The invention provides a vehicle control method and system and a vehicle. The control method of the vehicle comprises the steps that under the condition that tires of a rear axle of the vehicle burst, tire burst parameters used for representing the tire burst condition are obtained; current pedal states of an accelerator pedal and a brake pedal in the vehicle are obtained; and the axle torque and the axle braking force of the vehicle are controlled in combination with the tire burst parameters and the current pedal state. Therefore, under the condition that the rear axle tires of the vehicle are punctured, the vehicle axle torque and the axle braking force are controlled in combination with the tire burst parameters for representing the current tire burst condition and the current states of the accelerator pedal and the brake pedal, and meanwhile, the actual tire burst condition and the action condition of a driver are considered; and the vehicle control accuracy under the condition of vehicle rear axle tire burst can be improved.

The present application provides a vehicle control method, a control system and a vehicle. The vehicle control method includes: in the event of a tire blowout on the rear axle of the vehicle, obtaining a tire blowout parameter for characterizing the tire blowout situation; obtaining the current pedal state of an accelerator pedal and a brake pedal in the vehicle; and controlling the vehicle's axle torque and axle braking force in combination with the tire blowout parameter and the current pedal state. In this way, in the event of a tire blowout on the rear axle of the vehicle, the vehicle's axle torque and axle braking force are controlled in combination with the tire blowout parameter for characterizing the current tire blowout situation and the current state of the accelerator pedal and the brake pedal, while taking into account the actual tire blowout situation and the driver's actions, which is conducive to improving the vehicle control accuracy in the event of a tire blowout on the rear axle of the vehicle.

The invention relates to the technical field of semiconductor equipment, and provides a pipeline structure identification method, a pipeline structure identification device and semiconductor equipment, and the method comprises the steps: identifying a pipeline control set from each visual element contained in a graphical interface for displaying a pipeline diagram; wherein the types of the pipeline controls comprise pipelines, multi-way pipe fittings and valves; the pipeline control of the pipeline type has a pipeline flow direction; on the basis of the control connection judgment sub-process, determining that each pipeline control in the pipeline control set has a subsequent pipeline control with connected ports or overlapped controls in the pipeline flow direction, so as to obtain a pipeline connection structure; identifying each pipeline path in the pipeline connection structure to form a pipeline path set; and determining an effective path in the pipeline path set based on the flow direction relation between the ends of the pipeline control of the multi-way pipe fitting type in different pipeline paths. Therefore, the connection and the upstream and downstream relation between the pipeline nodes can be automatically extracted according to the displayed pipeline diagram, and the node control efficiency is effectively improved.

The double-edge sawtooth bone knife comprises a knife rod, the knife rod is connected with a blade, and the section, away from the knife rod, of the blade is provided with a cutting part; the cutting part comprises a first sawtooth part arranged at the end of the blade, a second sawtooth part and a third sawtooth part, the second sawtooth part and the third sawtooth part are arranged on the two sides of the blade respectively, the second sawtooth part and the third sawtooth part are connected to the two ends of the first sawtooth part respectively, and each of the second sawtooth part and the third sawtooth part comprises a plurality of convex back teeth. The cutting part has the advantages that the tooth-shaped structural design of the cutting part is optimized, vibration and noise during use are reduced, and the cutting quality can be improved.

The present application discloses a method and system for improving the quality of printed images based on frequency modulation dots. The method comprises obtaining initial process parameters based on the acquired platemaking machine equipment parameters and the platemaking standard information of each platemaking link in the platemaking process; obtaining frequency modulation dots and corresponding standard dot parameters of different brightness gradation zones of the preprocessed target image; obtaining historical printing grayscale images according to the platemaking machine equipment parameters, determining the equipment imaging characteristics and mesh control adjustment area corresponding to the platemaking machine equipment parameters based on the historical printing grayscale images, and determining the target dot grayscale level and dot dynamic control parameters in combination with the frequency modulation dots and corresponding standard dot parameters of different brightness gradation zones; the dot dynamic control parameters include dot output range parameters based on frequency modulation dots; triggering platemaking printing control instructions according to the target dot grayscale level and dot dynamic control parameters; the present application improves the reproduction quality of printed images.

The invention provides a method for regulating and controlling a contact window (CD), which comprises the following steps of: introducing CH2F2 gas into an etching chamber when a photoresist layer with an O-C-H bond is adopted and a bottom anti-reflection layer is patterned, and since the chemical dissociation energy of a C-F bond in the CH2F2 gas is greater than that of the C-H bond, the CH2F2 gas can dissociate more free radicals, so that the contact window (CD) is prevented from being damaged by the free radicals; further, the carbon-containing polymer can act with the photoresist layer to generate polymerization reaction to form a carbon-containing polymer so as to regulate and control the contact window CD. The regulation and control method of the contact window CD has a wide regulation and control window, is suitable for carrying out difference compensation on masks with different light transmittances, and is wide in application range and high in regulation and control precision.

The utility model belongs to the technical field of machining, and particularly relates to an aluminum alloy box machining tool positioning and leveling device which comprises a top pressing device, two side adjusting and limiting devices and a box leveling device. The box body leveling device comprises a lever, a lever supporting seat is arranged between the lever and the leveling bottom plate, and the lever is rotationally connected with the lever supporting seat; a supporting rod is movably connected above one end of a resisting arm of the lever; one end of the lever power arm is movably connected with the screw rod, a screw rod shell is arranged outside the screw rod, the screw rod penetrates out of the lower portion of the screw rod shell, and a locking nut is arranged on the penetrating-out portion of the screw rod; the locking nut is in threaded connection with the screw rod, the screw rod can move downwards by rotating the locking nut, a single worker can complete leveling work of a box body workpiece, the adjusting height and precision can be conveniently controlled, defects of parts during adjusting can be avoided, operation is convenient and fast, production efficiency is high, and the leveling device can be applied to mass production.

This utility model provides a stainless steel flange device, including a support base and a side bracket. A servo motor is installed in the middle of the upper end of the support base. The shaft end of the servo motor is connected and fixed to the flange table through a flange and bolts. Multiple support rods are installed longitudinally on the lower edge of the flange table. Multiple lower mold seats and multiple signal transmitters are fixed on the upper edge of the flange table. A side bracket is welded to the lower left side of the support base. This design solves the problem that the original thin-walled stainless steel flange device is difficult to adapt to the material characteristics of stainless steel and is prone to defects due to "deformation concentration and stress loss" in a single punching of the convex ring. This utility model adopts a semi-automatic drive structure, which can facilitate the two-stage punching and flanged of stainless steel pipes of different sizes. The "conical pre-punching + flat final punching" achieves controllable stress, improved accuracy and reduced defects through step-by-step dispersion of deformation. It is especially suitable for high-precision and multi-specification stainless steel flange scenarios.

The invention relates to the technical field of power transmission control, in particular to a power transmission control method of a crane, which comprises the following steps: acquiring an image of a hoisted object and determining a hoisting mode; in the corresponding hoisting mode, whether the first hoisting process meets a preset standard or not is judged based on the complexity of force on a steel wire rope connected with the hoisted object; on the basis of the adjusted first hoisting process, whether the second hoisting process meets a preset standard or not is judged according to the deviation angle of the sling; based on the adjusted second hoisting process, whether a third hoisting process meets a preset standard or not is judged according to the vibration amplitude of the hoisted object; and under the condition that the first hoisting process, the second hoisting process and the third hoisting process meet the preset standard, whether the hoisting process of the crane meets the preset standard or not under the condition that wind resistance exists is judged based on the inclination angle of the hoisted object. The control accuracy and reliability of the hoisting process are improved.

The application discloses a kind of cleaning device of work roll for galvanized strip steel processing, including bearing base plate, rolling mill main body, roller conveyor, straightening machine main body, cutting machine main body and flattening machine main body, and the bottom end in rolling mill main body is connected with cleaning assembly by cleaning cavity, cleaning assembly can clean the work roll body in rolling mill main body, cleaning assembly includes horizontal mechanism, swing mechanism and reverse mechanism, swing mechanism can be moved and adjusted left and right, adapt to the work roll body of different positions, swing mechanism top is connected with reverse mechanism, can drive reverse mechanism to swing left and right, adapt to the arc structure of work roll body outside, reverse mechanism includes installation frame, cleaning wheel one and cleaning wheel two etc., under the cooperation of each other, by the reverse rotation of cleaning wheel one and cleaning wheel two, the cleaning effect of work roll body outside is strengthened, and the stripping effect of material on work roll body outside is improved, to realize more high-quality cleaning effect.

The present invention discloses an electronic control system for a grain silo full hydraulic bin cleaning machine, and relates to the technical field of grain storage equipment. The electronic control system for a grain silo full hydraulic bin cleaning machine comprises: a data acquisition module, a hydraulic pump analysis module, a hydraulic valve analysis module and a comprehensive evaluation module. The present invention obtains hydraulic data of the device to be tested by using a data acquisition device to monitor the working condition of the device to be tested in real time, obtains a first hydraulic condition index based on the first hydraulic data and a second hydraulic condition index based on the second hydraulic data, and finally obtains a comprehensive hydraulic condition index based on the first hydraulic condition index and the second hydraulic condition index, and evaluates the working condition of the device to be tested based on the comprehensive hydraulic condition index, thereby improving the accuracy of grain flow control and solving the problem of low correlation between grain flow control and management of a grain silo full hydraulic bin cleaning machine in the prior art.

This invention relates to the field of lighting control technology, specifically disclosing an environment-adaptive LED constant current energy-saving control method. The method includes: arranging a dielectric-photoelastic sensing array, a magnetostrictive-leakage flux detection coil, and a broadband impedance spectrum detection unit on the phosphor encapsulation layer, the inductor core, and the output bus, respectively; simultaneously acquiring three types of timing signals; extracting dielectric-magnetic-electric coupling degradation feature vectors; inputting the feature vectors into an energy-saving-lifetime co-optimization model; correcting the target luminous flux based on the dielectric relaxation offset; constructing a core loss-efficiency mapping surface to solve for the minimum energy consumption operating point; generating a constant current target value offset sequence and a PWM chopper phase-frequency co-transfer strategy; and simultaneously adjusting the duty cycle, switching frequency, and gate impedance through a feedforward-feedback composite adjustment network, and feeding back the current ripple spectrum and dielectric relaxation offset to update the feature vector weights. This invention achieves multi-physics field co-sensing and energy-saving-lifetime co-optimization.

The invention discloses a control method and related device for a fault indicator of a heavy hybrid vehicle, and the method comprises the steps: responding to the power-on of a target vehicle, and determining the fault state of the target vehicle; acquiring an upper high voltage state of the target vehicle and an engine starting state of the target vehicle; the upper high-voltage state is used for indicating an activation state of a high-voltage system of the target vehicle; and controlling a fault indicator of the target vehicle to display based on the fault state, the upper high voltage state and the engine starting state of the target vehicle. Therefore, the accuracy of judging whether the heavy hybrid vehicle is driven or not can be improved by integrating the upper high voltage state and the engine starting state of the target vehicle, so that the control accuracy of display of the fault indicator is improved, and whether the vehicle has a fault or not is accurately indicated.

The application relates to a double anti-overpressure safety control system and method of a steam-water dual-purpose furnace, which comprises an enhanced signal acquisition unit, an electronic control unit, an executing mechanism, a physical protection unit, a man-machine interaction and data management unit; the physical protection unit comprises three-stage relief devices independently installed on a steam pocket; the enhanced signal acquisition unit comprises a pressure monitoring module, a flow monitoring module, a temperature monitoring module and a safety component state monitoring module; the man-machine interaction and data management unit comprises an HMI and a data storage module; the executing mechanism comprises a frequency conversion burner, an electric feed water pump and an electric regulating valve V1 receiving PLC analog output; the PLC programmable logic controller controls the frequency conversion burner, the electric feed water pump and the electric regulating valve V1 based on the data collected in each module of the enhanced signal acquisition unit. The application greatly reduces the probability of serious overpressure accidents caused by single element or system failure.

The present application specifically relates to a device and method for measuring the surface flatness and angle of a concrete test block. The device includes five laser groups: upper, lower, left, right, and front. The upper and lower laser groups include four laser sensors, and the remaining groups include three laser sensors. The laser points of the upper and lower laser groups are rectangular, and the remaining groups are L-shaped. The method in the present application can measure the angle and flatness between each surface by combining the spacing measured by the laser sensor with trigonometric function operations. The present application can efficiently and concisely measure the flatness and angle of the other five surfaces except the rough surface at the same time, effectively improving the credibility of the test block measurement data.

The application discloses a low-vibration active phase modulation composite pulse tube Stirling cryogenic refrigerator and belongs to the technical field of cryogenic refrigerators. The composite refrigerator cold finger integrates a first Stirling component as a high-temperature stage and a second pulse tube component as a low-temperature stage. The innovation is that the phase modulation unit of the second pulse tube component is composed of a second inertia tube wound and fixed in the inner circle of the gas reservoir, and the gas reservoir is integrally connected to the first cold end heat exchanger to improve the system efficiency through low-temperature arrangement. At the same time, the motion state of the compressor piston and the first displacer is monitored and cooperatively controlled in real time through the compressor displacement sensor and the cold finger displacement sensor, active and accurate phase modulation is realized, and the active vibration damper is used to perform reverse compensation according to the motion feedback of the first displacer to significantly offset the vibration output of the whole machine. The application realizes the unity of high efficiency, low vibration and high reliability, and is particularly suitable for vibration-sensitive space exploration and other application scenarios.

The invention relates to the technical field of semiconductor lasers, in particular to a compact ultra-narrow linewidth external cavity laser based on a top metal reflection grating, which comprises a gain chip, the left end face of the gain chip is plated with a high reflection film, and the right end face of the gain chip is plated with a first antireflection film; the right side of the gain chip is provided with a metal grating waveguide, the right end face of the gain chip is aligned and attached to the left end face of the metal grating waveguide, the left end face of the metal grating waveguide is plated with a second antireflection film, and the right end face of the metal grating waveguide is plated with a third antireflection film; the gain chip comprises a substrate, the upper part of the substrate is provided with a ridge optical waveguide, and the upper part of the ridge optical waveguide is provided with a metal cover Bragg reflection grating. Through the centimeter-level metal grating and the low-loss coupling structure, light beam quality with 3dB line width less than 750Hz and M2 less than 1.1 is realized.

The invention discloses a machine room air conditioner control method and device, electronic equipment and a storage medium. The method comprises the steps that machine room temperature data are collected; calling a temperature analysis model according to the machine room temperature data, analyzing the machine room temperature data by using the temperature analysis model, and determining a temperature analysis result; and the current machine room air conditioner operation state is obtained, an air conditioner control instruction is generated according to the temperature analysis result and the current machine room air conditioner operation state, and the machine room air conditioner is controlled according to the air conditioner control instruction. The computer room air conditioner can be controlled according to the computer room temperature data, the purposes of saving energy and reducing consumption are achieved, automatic computer room air conditioner control is achieved, the computer room air conditioner control efficiency and accuracy are improved, and the method can be widely applied to the technical field of air conditioner control.

The application discloses a measurement method, device, terminal, base station and storage medium, wherein the method comprises: a first terminal receives first signaling sent by a base station; wherein the first signaling is used for configuring first measurement resources available for the first terminal to perform CSI measurement; the first measurement resources are determined based on a first time slot; and the first time slot represents a time slot when a channel of the first base station is turned off or reopened.

The invention relates to a dual-module intercooler type fuel cell cathode inlet temperature and humidity cooperative control method. The method comprises the steps that fuel cell cathode air inlet real-time state parameters and operation parameters are obtained, a multivariable coupling prediction model is constructed after preprocessing, and a temperature and humidity reference and an oxygen stoichiometric ratio target reference are set in combination with heat exchange characteristics of a dual-module intercooler; then the core body heat exchange distribution proportion is regulated and controlled, humidification adjustment is matched, and the core body heat exchange distribution proportion and the humidification adjustment intensity are dynamically adjusted according to the real-time working condition; comparing the deviation between the adjusted actual temperature and humidity and the target temperature and humidity reference, and correcting the heat exchange distribution proportion and the humidifying adjustment parameter through a dynamic constraint correction model; cooperative regulation and control of cathode inlet temperature and humidity are realized, dynamic change of working conditions is adapted, and stable operation of the fuel cell is guaranteed.