666 results about "Digital control" patented technology

The invention relates to the technical field of hybrid inverters, and discloses a hybrid inverter supporting reactive compensation and a control method thereof, and the hybrid inverter comprises a DC input unit, a three-phase full-bridge inversion unit, a grid-connected switching unit, a signal acquisition unit and a digital control unit. The direct current input unit comprises a photovoltaic interface, a battery interface and a direct current bus and is used for converging photovoltaic and energy storage electric energy; the three-phase full-bridge inversion unit is composed of a power device and an LCL filter and converts direct current into alternating current. The grid-connected switching unit comprises a static switch and an isolation transformer and is used for controlling power grid connection; the signal acquisition unit detects voltage and current signals; and the digital control unit judges a grid-connected mode or an off-grid mode according to the signal, calculates a reactive current reference value and generates a PWM (Pulse Width Modulation) control signal so as to realize reactive compensation control in the grid-connected mode and the off-grid mode. According to the invention, reactive power compensation capability is provided in both grid-connected and off-grid operation modes, and stable operation of the inverter in various working conditions is ensured.

The invention relates to the technical field of environmental governance and remediation, in particular to a combined contaminated site soil remediation data management method, which comprises the following steps of: firstly, integrating multi-source heterogeneous data through a unified space-time coordinate system to generate a fusion data pool, and then driving a pollution assessment model to generate a multi-dimensional space-time pollution map; and then intelligently matching a candidate repair process chain based on an associated knowledge base, performing iteration deduction through a dynamic multi-objective optimization engine to obtain an optimal repair scheme, converting the optimal repair scheme into a digital regulation and control instruction, and finally monitoring an execution state and environmental response data in real time and feeding back and updating a data pool to realize closed-loop optimization. According to the method, the data quality and the pollution evaluation accuracy are improved, the adaptability of the repair process and the cost performance of the scheme are optimized, the repair effect is ensured to be stable and reach the standard, and the efficiency and reliability of the repair project are improved.

The present application belongs to the technical field of wireless communications and radar systems. Disclosed are a dual-band fusion and multiplexing frequency source, chips, a radio-frequency transceiver, a system, and a device. The system comprises: a full-function millimeter-wave CMOS 4+1 phased array chip, which is connected to an antenna end, and is used for realizing signal processing and frequency conversion between a millimeter-wave signal and a C-band intermediate-frequency signal, performing phase control and gain adjustment on the millimeter-wave signal, and providing an internal frequency source and a calibration function; a C-band front end, which is connected to the antenna end, and is used for receiving or transmitting a C-band signal; a C-band / intermediate-frequency transceiver multiplexing chip, which is used for performing frequency conversion between a C-band or intermediate-frequency signal and a baseband signal in a multiplexing manner, and performing signal processing and gain control on the C-band intermediate-frequency signal; a dual-band fusion and multiplexing frequency source, which is used for providing a local oscillator signal; and an all-digital control logic circuit, which is used for providing a control instruction. The present application improves the efficiency and performance of dual-band joint communications.

The invention belongs to the technical field of automatic control, and particularly relates to a digital control system for strip coiling equipment, which comprises the following steps of: firstly, comprehensively acquiring strip tension data and state characteristic information by combining a tension sensing assembly and image acquisition equipment, dynamically adjusting a braking torque parameter, and then, acquiring a dynamic control signal by taking the linear speed of a coiling machine as a target signal; the speed of the uncoiling machine and the speed of the traction roller are synchronously aligned through a following strategy, then a taper tension control mode is adopted, the tension value is dynamically adjusted in combination with real-time coiling diameter parameters, the tension stability and the coiling regularity in the coiling process are ensured, and finally the strip deviation problem is detected and processed in real time according to a closed-loop deviation correction mechanism. The equipment control strategy in the strip coiling process is deeply bound with uncoiling control, synchronous coordination, coiling control and a deviation correction core module, and the integrated control capability of multivariable coordination and self-adaptive optimization is achieved, so that the automation and intelligence level of the strip coiling process is effectively improved.

The invention relates to the field of numerical control of numerical control machine tools, in particular to an intelligent cutter matching selection control method and system for a numerical control machine tool. The method comprises the specific implementation steps that a machining task digital instruction, numerical control machine tool parameters and a tool historical database are obtained, a joint parameter space is constructed, and candidate tools and initial numerical control parameters are screened; operation feedback parameters are obtained, a stability lobe graph is generated, and a machinable interval is calibrated; a multi-objective optimization model is utilized to evaluate candidate tools, an optimization scheme is output, and parameters and early warning signals are adjusted; a machine tool is controlled in a closed-loop mode through PID, tool parameters are reconfigured when a threshold value is exceeded, a lobe graph is updated, a numerical control feedback strategy is generated, and a dynamic feedback path optimization database is constructed. Through an intelligent algorithm and closed-loop control integrated by a numerical control system, adaptive optimization of tool matching and cutting parameters is realized, and the machining stability and efficiency are improved.

The invention relates to the field of digital power supply control, and provides a parameterized digital control method and system suitable for a wide power range charging module, and the method comprises the steps: collecting an original sensor signal, constructing a slow working condition feature vector through adaptive-temperature drift compensation, and driving a physical constraint reference prediction model to generate a second baseline behavior parameter vector; monitoring a gate driving current by using a gate-drain capacitor, extracting a transient characteristic value, and quantifying the transient characteristic value into a ZVS quality factor; the slow working condition feature vector and the ZVS quality factor are fused, a correction vector is generated through an adaptive prediction model, a control parameter vector is generated in combination with a second baseline behavior parameter vector, and online updating is carried out according to feedback; executing hardware physical limit constraint according to the security constraint set, generating security parameters and abnormal flag bits, and writing the security parameters and the abnormal flag bits into a hardware register in a fixed-point manner after cooperating with ZVS quality factor arbitration. According to the method, physical constraint prediction and transient perception correction are fused, and a digital control system considering dynamic response, drift compensation and safety redundancy is constructed.

The invention discloses an eddy current displacement sensor sine constant current source excitation method, and belongs to the technical field of sensor measurement and control. The method comprises the following steps: S1, generating positive and negative symmetric reference voltages through a reference voltage source circuit; s2, outputting a square wave control signal with adjustable frequency by the control chip, and driving a switching circuit to generate a square wave taking the positive and negative reference voltage as a level; s3, processing the square wave through a filter circuit to obtain a standard sine wave voltage signal; and S4, converting the sine voltage signal into sine constant current source excitation through a Howland current source circuit, and outputting the sine constant current source excitation to a sensor probe coil. According to the invention, through combination of digital control and analog conversion, the circuit structure is simplified, the cost is significantly reduced, and convenient adjustment of the output frequency and high stability and precision of the output current are realized at the same time.

The invention belongs to the technical field of automatic control, and particularly relates to an improved linear gain digital control method for a power supply system. The problems that a traditional fixed linear gain digital controller is poor in control precision, robustness, response speed and stability, prone to overshoot and oscillation, heavy in calculation burden, large in hardware consumption and the like in a complex dynamic environment and a nonlinear or strong coupling system are solved. According to the method, an operation state and environment parameters are obtained and processed, and system dynamic characteristics are intelligently evaluated; calculating an optimal control gain factor in combination with a gain scheduling rule or an adaptive learning model, and applying the optimal control gain factor to a linear digital controller for dynamic adjustment; and non-linear compensation processing is carried out on the adjusted control quantity, so that accurate closed-loop control is realized. The control precision can be obviously improved, the system response can be accelerated, the external interference suppression capability can be enhanced, the hardware dependence can be reduced, overshoot and oscillation can be eliminated, and high-precision, low-power-consumption and wide-adaptability digital control can be realized.

The invention provides a digital control method and system based on cosmetic production characteristics, and belongs to the technical field of data processing.The method comprises the steps that firstly, a digital twinborn model of cosmetic product characteristics is built, and the model is related to formula data, technological parameters, sensory characteristics and physicochemical indexes of a product; and output sensory characteristics and physicochemical indexes can be predicted according to input formula data and process parameters. Then, order demands at least containing one or more sensory characteristic preferences of product texture, skin feeling and fragrance are obtained; then, one or more recommended production parameter sets are determined based on the recommended production parameter set order requirements and the recommended production parameter set digital twin model, the recommended production parameter sets defining corresponding recipe data, process parameters and sensory characteristics. And finally, controlling production equipment to execute production according to the recommended production parameter set. According to the invention, accurate control from personalized sensory requirements to production parameters is realized.

The invention discloses a high-robustness deadbeat predictive current control method which is suitable for current control of a dual three-phase permanent magnet motor driving system, and belongs to the technical field of permanent magnet motor control. The method mainly comprises the following steps: reconstructing a motor mathematical model by adopting a space vector decoupling matrix and Park transformation to obtain a motor voltage equation under a dqxy axis; designing a linear expansion state observer; a reference value of an output voltage vector is obtained in combination with deadbeat predictive current control; time delay in the digital control system is calculated, and angle delay is compensated; and designing a closed-loop Smith predictor for compensating a time delay link to complete high-robustness dead-beat predictive current control of the dual three-phase permanent magnet motor. The current loop design in the method does not depend on motor parameters, and the method has high parameter change robustness. By introducing the closed-loop Smith predictor, large delay of the system can be effectively compensated, and high-precision current tracking is realized under low switching frequency.

The invention provides a grid-side current harmonic suppression method and device for a motor driving system without an electrolytic capacitor. The method comprises the following steps: determining first and second bus voltage harmonics based on bus voltage obtained by sampling and inverter switching frequency; correcting the bus voltage according to the first bus voltage harmonic wave and the second bus voltage harmonic wave so as to determine a reconstructed bus voltage; according to the second bus voltage harmonic, the reconstructed bus voltage, an inverter output three-phase duty ratio and a motor three-phase current, first and second network side current harmonic regulation and control voltages are determined based on a self-defined closed-loop controller; and adopting a motor alpha-axis correction voltage and a motor beta-axis correction voltage determined according to the first and second grid-side current harmonic regulation and control voltages to participate in motor SVPWM modulation to output the three-phase duty ratio of an inverter so as to suppress grid-side input current harmonics. According to the method and the device, factors such as motor operation conditions, bus voltage harmonic waves and digital control delay are comprehensively considered, the quality of grid-side input electric energy is improved, and disturbance to machine-side rotating speed and torque is reduced.

The invention belongs to the technical field of electronic digital control, and particularly relates to a digital loop control method and device for rapidly exiting circuit hardware clamping, and the method comprises the following steps: S1, carrying out the real-time monitoring and precise recognition of a clamping state; s2, digital loop feedback source switching; s3, clamping quit grading evaluation and strategy selection are carried out; s4, loop regulation under virtual current feedback; after hardware clamping occurs, the virtual current quickly replaces a current ADC measured value to serve as a feedback source, nonlinear coupling of DAC output and the current ADC measured value is effectively weakened, reference parameters and dynamically-adjusted loop control logic are matched, exit time is shortened by 90% or above compared with the prior art, and the overshoot rate is controlled to be a rated value smaller than or equal to 3%; meanwhile, in the feedback source switching process, loop state freezing is avoided, control continuity is high, switching impact is avoided, and rapid and stable quit of the hardware clamp is achieved.

The invention discloses a multiphase BUCK converter and a high-dynamic self-adaptive phase cutting method. The multiphase BUCK converter comprises a 16-phase power level, a current sampling module, an MOS driving module, a digital control module, a CMCOT simulation main control loop and a dynamic detection circuit. The MOS driving module controls a switching tube in the 16-phase power level, the current sampling module collects an inductive current signal, the input end of the CMCOT simulation main control loop is connected with the output end of the current sampling module, and a PWM control signal is output to the digital control module; the input end of the dynamic detection circuit is connected with an output signal of a voltage loop gain in the CMCOT analog main control loop, and a mark signal is generated and output to the digital control module; the digital control module generates a phase cutting signal. A phase cutting strategy is correspondingly provided, the number of PWM started by a phase cutting signal is adaptively changed, the transient voltage undershoot is reduced, meanwhile, voltage overregulation is avoided, and the transient performance is remarkably improved.

The invention belongs to the technical field of power supply control, and particularly relates to an improved linear gain digital signal control method applied to a power supply. Aiming at the problems of poor gain linearity, low control precision, slow dynamic response and insufficient adaptability to system parameter change in a wide load and wide input voltage range in the traditional digital control, the method comprises the following steps of: digitally acquiring power supply operation parameters at high precision, and introducing an adaptive linear gain adjustment module to calculate a target control gain. In addition, the method generates a pulse width modulation signal based on the corrected gain and digital operating parameters to regulate the power output, and samples quantized output feedback in real time. Through the scheme, the response speed and stability of the power supply system during transient load change can be remarkably improved, and power supply management with higher precision, higher robustness and faster dynamic response is realized, so that the overall performance of the power supply system is comprehensively improved.

The invention belongs to the technical field of time sequence calibration, and relates to a core particle parallel interface time sequence calibration method, which comprises the following steps of: introducing a phase interpolator with 180-degree phase deviation in a clock path of a receiving end, and positioning a sampling clock at the center of a data eye diagram; in a data path of a receiving end, a coarse adjustment delay calibration unit is firstly adopted to carry out periodic delay compensation, and the coarse adjustment delay calibration unit adopts a numerical control delay line structure to carry out delay adjustment; and then, a fine adjustment delay calibration unit is adopted to further realize sub-period-level delay adjustment, the fine adjustment delay calibration unit adopts a phase interpolator structure and a dynamic fine adjustment calibration mechanism, and finally, the delayed data signal and the clock signal are aligned at a receiving end. According to the invention, the binary search method is introduced, the positioning speed of the optimal delay configuration is obviously improved, delay drift is fully considered, a dynamic calibration mechanism is added, a sampling window is constructed based on a phase interpolator, and a high-precision and dynamic calibration effect is realized.

The invention relates to the technical field of radio frequency integrated circuits, and discloses a dynamic bias C-type voltage-controlled oscillator based on a CMOS (complementary metal oxide semiconductor) process, the voltage-controlled oscillator adopts a C-type structure, a cross-coupled network adds two resistors and a capacitor on the basis of a cross-coupled transistor, a circuit works in the C type by adjusting bias voltage at a resistor end, and the voltage-controlled oscillator works in the C type. The C-type voltage-controlled oscillator, a tail current source, a variable capacitance network, a switched capacitor array and a fixed LC resonance network form a core structure of the C-type voltage-controlled oscillator capable of numerical control tuning and voltage-controlled tuning, so as to determine the working frequency of the circuit and realize numerical control and voltage-controlled tuning functions; and the operational amplifiers with two bandwidth modes are introduced, so that the problem of difficult oscillation starting is solved, and the oscillation starting speed and the phase noise performance in a stable state are considered at the same time.

The invention discloses a wearable digital olfaction experience device, system and method. The core purpose of the wearable digital olfaction experience device, system and method is to determine that olfaction is a brand-new and high-fidelity digital information medium. The device is positioned as a purely "olfactory display" that includes a nose wearing structure, an olfactory stimulus generating unit, a wireless communication module, and a processing circuit. The core of the olfactory stimulus control device is that the processing circuit adopts pure open-loop control logic and is configured to receive timestamps and parameters defined in an external digital control instruction sequence and drive the olfactory stimulus generation unit to perform high-fidelity micro-dose release strictly according to the timestamps and parameters. An accurate and synchronous olfactory dimension is provided for immersive experience such as VR / AR, a brand-new and private information expression mode is opened up, and a complete technical link from content creation to sharing is constructed around the device.

The invention relates to the technical field of aluminum foil slitting, and discloses an aluminum foil high-precision intelligent slitting method and device based on online tension and rolling diameter cooperative control. The invention aims to solve the problems of belt breakage, notch burrs and winding defects caused by large tension fluctuation, lagging of winding diameter calculation and passive shearing in the existing aluminum foil slitting technology. High-precision digital control of the whole process is achieved, the influence of system disturbance on the ultra-thin aluminum foil is effectively eliminated, and the slitting speed, the notch flatness and the structural stability of a finished coiled material are remarkably improved. The core of the method is that a precise tension model is constructed through laser scanning and inertia identification in the starting stage, and constant tension control under the dynamic rolling diameter is achieved through a double-ring strategy in the operation process; a vacuum adsorption isolation technology is innovatively introduced to cut off tension coupling, and a cutter is matched for overspeed active shearing to optimize the trimming quality; and the rolling end adopts a taper tension and flattening strategy that the rolling diameter and the speed are cooperatively adjusted.

The invention discloses an electric meter sampling filter chip and system integrated with a programmable anti-aliasing filter, and relates to the field of electric energy metering chips, the electric meter sampling filter chip comprises a programmable anti-aliasing filter module, a digital control and interface module and a cooperative control unit, through binary weighted control of a switched capacitor array, the cut-off frequency can be dynamically adjusted within the range of 1 kHz to 100 kHz, and the cut-off frequency can be adjusted within the range of 1 kHz to 100 kHz. Switching of a Bessel mode, a Butterworth mode and a Chebyshev mode is physically achieved by reconstructing a feedback network, a programmable AAF, an ADC, control logic and a digital interface are integrated into a single chip, and the number of external elements such as an RC network and an operational amplifier is reduced; aDC sampling data is analyzed through FFT, the signal-to-noise ratio is calculated in real time, the filter mode is automatically switched, a hardware interrupt pin triggers notification after configuration is completed, MCU polling is replaced, and frequency response is ensured to be accurate and controllable through laser trimming of a switched capacitor array.

The invention discloses a harmonic generation and beam control method and system based on an amplitude-phase regulation metasurface array. The method comprises the following steps of: constructing an amplitude-phase regulation and control metasurface array by adopting a digital control multi-channel radio frequency chip; based on a Fourier series and far field superposition model, calculating a time-varying amplitude phase sequence of harmonic waves and a phase gradient of beam pointing; the sequence is converted into a control signal through an FPGA, and each channel is modulated in real time; after an array receives a dot frequency signal, a target harmonic wave beam with a preset characteristic is radiated to a specified direction through periodic amplitude-phase modulation and space phase gradient processing. The system comprises an amplitude-phase regulation metasurface array construction module, a harmonic wave and beam control model construction module, a digital control signal generation loading module and a target harmonic wave generation radiation module, and is used for realizing the harmonic wave generation and beam control method. Accurate generation of any order of harmonic waves and flexible deflection of wave beams are achieved, the system integration degree, the regulation and control precision and the real-time performance are improved, and the application field is wide.

The invention relates to the technical field of water conservancy project automation and industrial control, in particular to a water conservancy equipment collaborative operation system based on an industrial control system, which comprises a programmable input mapping and logic matching unit, a data processing unit and a data processing unit, the system carries out binary bit mode matching on the operation result and the feature data block in the memory; the logical operation and addressing unit is used for calculating control lag time and generating a structured digital control sequence data stack; the sequential control and instruction addressing unit is used for generating a cooperative control instruction set containing sequential logic; the output mapping and checking unit is used for reading real-time feedback, and if deviation exists, an interruption compensation program is triggered to correct an action curve of an executing mechanism; the storage rewriting and loop optimization unit is used for correcting transmission delay parameters of the model and realizing closed-loop optimization; according to the method, the problem of model distortion caused by physical property drift is solved, and stable full-life-cycle operation is ensured.

The invention discloses a nuclear power plant distributed control system and control method, and relates to the technical field of nuclear power plant digital control, and the method comprises the steps: a global optimization layer generates a cross-unit general control strategy library based on a transfer learning algorithm according to the decision period of the global optimization layer; when the coordination control layer operates by using the transferable control strategy corresponding to the unit equipment where each two-loop subsystem is located, the corresponding two-loop subsystem control weight is dynamically allocated based on the multi-agent attention network according to the decision period of the coordination control layer; when the execution control layer operates by using the dynamically distributed two-loop subsystem control weight, the first-loop temperature, the first-loop pressure and the coolant flow are obtained according to the decision period of the control layer, a safety constraint matrix is calculated through a safety manifold projection module, and a quadratic programming problem with a relaxation factor is solved; and the corrected control weight of the two-loop subsystem is obtained and converted into a control instruction to be issued to a DCS field control station.

The invention relates to the technical field of integrated circuits, and provides a multi-nuclear inductance-capacitance type voltage-controlled oscillator, which comprises at least two oscillation units which are symmetrically distributed and a digital control unit, wherein each oscillation unit comprises a switched capacitor array, and the oscillation units are in annular synchronous connection through a synchronous resistor; and the digital control unit is used for generating control signals for respectively controlling the oscillation units so as to control the switches of the switched capacitor arrays in the corresponding oscillation units through the control signals. According to the oscillator, the effect of improving the precision of the oscillator can be achieved by improving the precision of the switched capacitor array.

The application belongs to the technical field of motor drive control, and discloses a permanent magnet synchronous motor current loop control method based on a predictive nonlinear active disturbance rejection, which comprises the following steps: step 1, establishing a permanent magnet synchronous motor control system model considering time delay; step 2, establishing a current loop extended state observer with time delay compensation; and step 3, designing a nonlinear current feedback control law based on finite time convergence. The application establishes a discrete domain extended model for the current loop of the permanent magnet synchronous motor, and proposes a high-performance nonlinear active disturbance rejection current control method for the permanent magnet synchronous motor. The high-frequency response current controller designed by the application is composed of a predictive extended state observer and a nonlinear current feedback control law, and can solve the problem that the frequency response of the permanent magnet synchronous motor drive is limited due to the digital delay in the motor digital control system and the low-pass filter delay in the current feedback channel, and improve the anti-disturbance performance when the motor parameters change.

The invention relates to the technical field of systems for adjusting electrical variables, and discloses an automatic adjusting system for voltage fluctuation in an electroplating process, and the system comprises a feature extraction module which is used for obtaining an original sampling signal of voltage transient change of a controlled load end and extracting voltage differential information; the logic damping operation module is used for generating a logic compensation instruction according to the voltage differential information and a preset logic damping operator; and the pulse width modulation instruction reconstruction module is used for reconstructing a carrier phase and a placeholder edge time sequence according to the logic compensation instruction to correct the duty ratio. Virtual damping vectors with opposite polarities are implanted into a digital control loop, so that the output voltage generates a damping response which is subjected to exponential attenuation along with time to suppress transient voltage oscillation; according to the method, high-frequency ringing signals caused by coupling of parasitic parameters of the power transmission line and equivalent impedance of the controlled load are eliminated, and the voltage stability of the controlled load group during frequent switching of multiple task positions is guaranteed.

The invention relates to the field of numerical control machining and computer-aided manufacturing software, and particularly discloses a honeycomb core six-axis ultrasonic cutting track digital control and interpolation optimization system which comprises a track preprocessing module, a parameterized spline interpolation module, a six-axis linkage inverse solution module, a dynamic feed-forward compensation module, an ultrasonic energy adaptive control module and a multi-source information fusion and decision module. By the adoption of the technical scheme, smooth and efficient interpolation of a track, dynamic feed-forward compensation of motion errors and self-adaptive adjustment of cutting energy can be achieved, and therefore the machining precision, the surface quality and the system stability are improved. According to the invention, ultrasonic energy control is originally incorporated into an overall trajectory control closed loop, and real-time accurate regulation and control of cutting energy are realized through the ultrasonic energy adaptive control module. The module is based on force, amplitude, temperature and other multi-sensor information, adopts fuzzy reasoning to intelligently decide output power, and ensures that cutting energy is constant and optimal under different processing conditions.

The invention provides a gain-reconfigurable active phase shifter with a low phase error, and relates to the technical field of phase shifters, and the phase shifter comprises a quadrature coupler which converts a radio frequency input signal into a shunt radio frequency signal; the input matching Balun converts the shunt radio frequency signal into a shunt differential signal; the digital control signal received by the phase inversion variable gain amplifier is used for controlling the on-off state of a differential pair in each differential group, and determining a differential combination current corresponding to a differential pair combination in a conduction state based on a shunt differential signal corresponding to each differential pair; the differential combination current is used for representing a gain state corresponding to the differential pair combination; the input impedance and the output impedance of the phase inversion variable gain amplifier in different gain states are kept unchanged; the vector synthesis module determines a phase shift differential signal based on the differential combined current; the output matching Balun converts the phase shift differential signal into a radio frequency output signal. The antenna has a wide gain adjustable range and a low phase error.

The invention relates to the technical field of fuel nozzle performance testing, in particular to an integrated high-precision fuel flow testing method and detection method.The testing method comprises the steps that a spraying test bed or a nozzle test bed is correspondingly selected based on whether a to-be-tested workpiece tests the spraying angle or not; after the integrated high-precision fuel oil flow testing device is in a reset state, a corresponding motor rotating speed is input to a digital control system based on the calibrated flow of the workpiece to be tested, a plunger pump of a high-pressure oil supply system is started, and oil liquid in an oil tank system is pumped to a corresponding spray test bed or nozzle test bed to run; the actual pressure difference of the workpiece to be measured is collected and transmitted to the digital control system, the actual pressure difference and the target pressure difference are compared, and the actual pressure difference is adjusted; when the preliminarily obtained actual oil flow is larger than a detection threshold value, the actual oil flow corresponding to the current flowmeter is defined as corresponding detection data; and when the preliminarily obtained actual oil flow is smaller than or equal to the detection threshold value, a weighing method is adopted for flow detection.

The invention discloses a process and a control method for continuous separation of hydrogen isotopes, and belongs to the technical field of hydrogen isotope separation. According to the process, a countercurrent continuous operation mode is adopted, an adsorption tower is divided into an adsorption area, a replacement area and a regeneration area, and reverse movement of an adsorbent and a material is simulated by periodically switching the material inlet and outlet positions of the adsorption tower; the adsorption towers and connecting pipelines are soaked in a constant-temperature coolant, and separation is realized by virtue of acting force difference of an adsorbent on hydrogen isotopes; according to the control method, digital control logic is adopted, the valve state is edited through a spreadsheet, software is controlled to analyze data, a PLC executes valve switching, and accurate regulation and control of the multi-tower operation state under different working conditions are achieved. The method provided by the invention solves the problems of high equipment investment and large energy consumption of a traditional separation method, has the advantages of high separation factor, high recovery rate and stable continuous operation, and is suitable for hydrogen isotope separation requirements of different feed gas proportions and different treatment capacities.

The embodiment of the invention discloses a battery SOC online simulation method and device, electronic equipment and a storage medium, and relates to the technical field of battery management and energy storage system digital control. The method comprises the steps that operation parameters such as voltage and current are collected in real time; after denoising, filtering and standardized preprocessing, a sliding window sequence is constructed to generate a historical time sequence matrix. Constructing a time sequence encoder by adopting a multi-head self-attention structure, and extracting long-term dependent features such as voltage curve change to generate historical feature vectors; meanwhile, key influence features are extracted from current covariants through a lightweight feed-forward network, the key influence features serve as query vectors, historical feature vectors serve as key value vectors, weights are dynamically adjusted through a cross attention mechanism, a fusion feature sequence is generated, and attention weights are automatically adjusted. And performing multi-layer nonlinear mapping on the fusion features through a decoder network to generate an SOC simulation value. The problems of parameter drift, error accumulation and poor adaptability in the prior art are effectively solved.