1890 results about "Digital control" patented technology

The invention relates to the technical field of intelligent control, in particular to a digital control method and system applied to on-line operation of multiple punching machines, and aims to acquire historical data of a production line, acquire operation state data of the punching machines in real time, realize product appearance defect detection through a YOLOv7 model in combination with product appearance images and quality inspection parameters, and improve product quality. Generating an offset quality inspection parameter in combination with a quality inspection standard; and generating a process abnormality positioning result by using the offset quality inspection parameters and the appearance defect detection result. And fusing the abnormal process positioning result with the operation state data of the punching machine to form multi-mode comprehensive operation characteristic data which is used for identifying the abnormal process. And after an abnormal process is detected, analyzing an abnormal propagation path through a dynamic working condition adaptive graph neural network model, extracting current working condition features, performing similarity matching with historical data, and extracting optimal historical reference parameters. And generating a production process adjustment parameter by dynamically correcting the historical reference parameter. And the adaptive capacity and the flexible response capacity of the production line to complex working conditions are improved.

A hybrid approach involving the mix of communication patterns and passive fingerprinting is used to identify unknown device types, manufacturers, and models of devices of digital control systems. ANDVI implementation maps the identified devices to their known vulnerabilities. According to one example, to identify how interdependence among existing atomic vulnerabilities may be exploited by an adversary to stitch together an attack that can compromise the system, model-checking based A2G2V is employed. According to another example, an A2G2V algorithm uses existing model-checking tools, an architecture description tool, and code to generate an attack-graph that enumerates the set of all possible sequences in which atomic-level vulnerabilities can be exploited to compromise system security. In yet another example, identification of label-cuts within an attack-graph automatically identifies a set of critical-attacks that, when blocked, renders the system secure. A linear complexity approximation utilizing SCCs helps identify the minimum label-cut representing a critical-attacks set.

The invention relates to the technical field of digital regulation and control, in particular to a hardware machining digital regulation and control system based on intelligent data. The method comprises the following steps that original machining parameters and hardware work order data are obtained through a data acquisition module, task hierarchy division and priority ranking are carried out, a priority work order task is generated, a global path planning module formulates a global process path for the priority work order task according to resource demand data, and the global process path planning module plans the priority work order task according to resource demand data. The difference comparison module identifies component differences and generates difference data through processing simulation and difference comparison, the correction path planning module traces process bottleneck nodes, carries out correction path planning and generates bottleneck local process paths, and the path fusion correction module corrects global process paths. And intelligent and digital execution of processing regulation and control is ensured. According to the invention, a more intelligent and finer hardware processing digital regulation and control system is realized.

The invention discloses a reconfigurable intelligent metasurface beam tracking device, and belongs to the technical field of wireless communication. Specifically, the reconfigurable intelligent metasurface module integrates a large number of metasurface units, a tunable element is embedded to achieve reconfiguration of electromagnetic characteristics, a receiving end of the communication receiving and transmitting module receives reflected signals of the metasurfaces and feeds back the quality of the received signals in the moving process, and the positioning sensing module senses the position of the receiving end in real time. And the codebook calculation module calculates a phase regulation codebook based on the signal quality and the position feedback information, converts the phase regulation codebook into a control voltage value, transmits a corresponding digital control signal to the voltage regulation module, and outputs multiple paths of analog voltages, so that the reflection coefficient of the metasurface array is regulated and controlled, and real-time dynamic wave beam tracking is realized. According to the invention, the coverage range, the transmission rate and the service quality of the communication network are obviously improved.

The invention relates to the technical field of water pump control, and provides a water supply and drainage pump set assembly and a digital control system, which realize self-adaptive control under a complex working condition by fusing multi-source data such as pressure, flow and temperature, break through the dependence of traditional control on a single parameter, and improve the response capability of the control system to water fluctuation and equipment state change. Based on a long-short-term memory network trained by historical multi-source data, a control system can predict a pressure set value in advance, the pressure set value is solved through a particle swarm algorithm, and weight fusion is performed according to the predicted pressure set value and the solved pressure set value to generate an adjustment instruction, so that the starting and stopping times of equipment and mechanical wear are reduced, and the service life of the equipment is prolonged. The maintenance cost is reduced, and water resource waste is avoided through accurate control; and meanwhile, through a redundancy design and a fault-tolerant mechanism, the control system can still operate stably under the scenes of sensor faults, equipment abnormity and the like.

In one embodiment, a system includes a digitally controlled oscillator (DCO) to generate a local clock having a local clock frequency, and clock synchronization circuitry to receive from a device a signal indicative of a remote clock frequency, compare measures of the remote clock frequency and the local clock frequency; generate a digital control command based on the comparison; and provide the digital control command to the DCO, wherein the DCO is to adjust the local clock frequency responsively to the digital control command.

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 invention discloses an intelligent temperature compensation method and device for a 24-station numerical control machine tool, and relates to the technical field of temperature compensation, and the method comprises the steps: connecting an environment temperature control system, and obtaining the environment temperature control parameters of all stations; acquiring thermal expansion coefficients of materials machined by a machine tool at each station; analyzing a machine tool temperature control requirement; activation control parameters of the sensing monitoring module and the compensation processing module are configured according to the temperature control requirement of the machine tool; performing data monitoring on the sensing monitoring module according to the activation control parameter, importing the acquired monitoring data into the compensation processing module, performing temperature compensation analysis processing according to the monitoring data and the activation control parameter of the compensation processing module, and generating a temperature control compensation instruction; and the temperature control compensation instruction is sent to a temperature control module for station area matching control. The technical problem that in the prior art, targeted temperature compensation optimization cannot be carried out on different materials is solved, and the technical effect of improving the temperature compensation precision is achieved.

The invention discloses a digital control system and method of a VI source, and relates to the field of VI source control. A main loop controller and a clamping loop controller are separately arranged in a main controller, and seamless switching between the main loop controller and the clamping loop controller is realized in cooperation with a monitor; the main loop controller is responsible for accurately outputting voltage / current under a normal working condition, and the clamping loop controller is specially used for overload protection. The two controllers are provided with programmable adjusting parameters, and the response speed and the steady-state precision are dynamically optimized according to load characteristics. The monitor adopts a periodic scanning mechanism, monitors an output signal in real time and intelligently switches a control mode. According to the invention, the four-quadrant operation capability is realized, the hundred microsecond level protection response speed is realized while high-precision output is maintained, and the problems of response hysteresis and parameter solidification existing in a traditional simulation protection circuit are effectively solved.

The invention discloses a disc type permanent magnet motor control method and system with adaptive dead zone compensation, and the method comprises the steps: constructing a state equation, a state estimation equation and a state-space equation of a permanent magnet synchronous motor through the structure of a Luenberger observer, constructing an observable matrix through an output matrix and a system matrix, and verifying the output of an observable system; establishing a characteristic equation to enable the designed observer to be finally converged, reducing an error between an estimated value of the disturbance observer and an actual value of the system, and realizing digital control of an actual servo platform through a discrete observable matrix; a phase-A bridge arm of an inverter is analyzed, three-phase current is subjected to Fourier decomposition, and stator harmonic components are analyzed to obtain three-phase harmonic current of the motor; an adaptive filter is designed based on an NLMS algorithm, and an online dead-zone compensation strategy is improved for a dead-zone effect. According to the method, by introducing the Luenberger disturbance observer, real-time measurement and adjustment of a nonlinear system can be realized, so that the performance index of the system is effectively improved.

The invention discloses a digital control uninterruptible power supply parallel operation phase locking method, which relates to the technical field of digital phase locking, and comprises the following steps of: in each analysis period, acquiring an output voltage waveform signal and a current frequency disturbance control parameter of each uninterruptible power supply, and respectively executing short-time Fourier transform to obtain an output voltage waveform signal and a current frequency disturbance control parameter of each uninterruptible power supply; and converting the time domain signal into a multi-dimensional dynamic spectrum matrix, extracting frequency and amplitude parameters of a disturbance signal, and constructing a corresponding uninterruptible power supply disturbance parameter set. According to the invention, through dynamic spectrum analysis and frequency domain coupling tensor modeling, accurate extraction of UPS modulation signal features and dynamic evaluation of resonance risk indexes are realized, in combination with a risk-driven frequency intervention mechanism, frequency coupling is broken, the frequency diversity and disturbance decoupling capability of the system are improved, and the reliability of the system is improved. The stability, the anti-interference performance and the intelligent response capability of the parallel system are obviously enhanced, and early warning and active suppression of lock point resonance are realized.

The invention discloses a workpiece detection method, a storage medium, a console, a control machine tool and a machining system, and relates to the technical field of numerical control machining, and the method comprises the steps: obtaining a workpiece drawing file of a to-be-detected workpiece, carrying out the probe dotting of the workpiece drawing file, and obtaining the standard point location data corresponding to a to-be-detected point location; uploading the standard point location data to a digital control machine tool; and / or, the numerical control machine tool performs actual dotting on the to-be-detected workpiece according to the standard point location data and feeds back actual dotting data; and comparing actual dotting data fed back by the numerical control machine tool with the standard point location data to obtain a workpiece detection result. The probe dotting is performed on the workpiece drawing file of the to-be-detected workpiece in advance, and the standard point location data can be compared with the actual dotting data, so that the workpiece detection can be completed on the machine table before the workpiece is off the machine, the condition that the workpiece is detected to be unqualified after being off the machine and needs to be on the machine for the second time is avoided, and the detection efficiency is improved. Therefore, the processing efficiency is improved.

The invention provides a digital control-based printing and dyeing industrial wastewater pH value automatic regulation system, which comprises a pH value detection module, a data processing module, a control module and a regulator adding module, realizes real-time monitoring and accurate control of the printing and dyeing industrial wastewater pH value, effectively avoids the problem of unstable biological treatment effect caused by pH value fluctuation, and improves the quality of the printing and dyeing industrial wastewater. Through an accurate sensor and an advanced control algorithm, the system can obtain wastewater pH value data in real time and automatically calculate the adjusting amount, so that the wastewater pH value is always kept in an optimal treatment range, the wastewater treatment efficiency and stability are improved, and a traditional manual adjustment mode is time-consuming, labor-consuming, time-saving and labor-saving. The system can automatically adjust the adjusting amount according to real-time data, so that the continuity and stability of wastewater treatment are realized, and the overall treatment efficiency is improved.

The invention relates to the technical field of digital control, in particular to a digital control system and method. The method comprises the following steps: acquiring an industrial equipment object and constructing a simulation model based on the industrial equipment object so as to simulate the running state of the equipment and acquire corresponding simulation data; analyzing the transient current surge phenomenon of the equipment according to the simulation data, and further analyzing the multi-dimensional interactive aging trend of the equipment, so as to estimate the attenuation condition of the dynamic precision of the equipment; estimating the equipment fault risk through the equipment dynamic precision attenuation data, and estimating the quality attenuation state of the industrial product according to the fault risk; the system transmits fault risk and product quality attenuation data to a digital control system, carries out equipment abnormity early warning through the system, and adjusts equipment parameters according to an early warning result. According to the invention, the industrial equipment is digitally controlled, so that the operation efficiency of the industrial equipment is higher.

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 discloses a CLLLC converter light load efficiency improvement and load expansion circuit based on variable resonant cavity regulation and control and a control method thereof. The circuit comprises a primary side full bridge, a variable resonant cavity, a secondary side rectifier and an output loop, the digital control unit detects the load in real time, and drives and switches the parallel or series capacitor branch to adjust the equivalent resonant capacitor; and the auxiliary buffer branch is used for soft start and sudden change buffer. According to the control method, capacitance is reduced during light load, efficiency is improved, capacitance is increased during heavy load, gain linearity is kept, the load range is widened, and smooth starting is achieved. The device is compact in structure and easy to control, the light load efficiency can be remarkably improved, the load application range is expanded, and the device has high reliability and good industrialization prospects.

The utility model discloses a digital auxiliary simulation LDO circuit without an off-chip capacitor. A simulation main loop of the circuit comprises an error amplifier, a buffer stage circuit, a simulation power stage circuit and a VG voltage detection circuit. The digital auxiliary loop includes a digital control logic circuit, a ring oscillator circuit, and a digital power stage circuit. By introducing the digital power adjusting tube, the parasitic capacitance of the grid electrode of the analog power tube is reduced, the pole of the grid electrode is located at high frequency, and on the basis, the super source follower is added to push the pole to higher frequency, so that the circuit has better loop stability. In a steady state, the digital auxiliary loop is forbidden, and the analog main loop can ensure strict adjustment, low quiescent current and no switching noise at the output end; when a load current suddenly changes, a ring oscillator in the digital auxiliary loop is called to generate a clock signal, and the number of conducted digital power tubes is changed, so that response time is not limited by a clock period, dependence on an external clock is avoided, meanwhile, voltage precision and rapid transient response are guaranteed, and static power consumption of the circuit is reduced.

The invention relates to the technical field of digital control switching power supplies, and particularly discloses a switching power supply dynamic response adjusting system based on digital control, which comprises a digital controller, a multi-channel analog-to-digital conversion module, a parameter identification module, a self-adaptive control law adjusting module, a pulse width modulation driving module and a stability monitoring module. On-line identification of key parameters of a system is realized by constructing a nonlinear state space model and combining an extended Kalman filtering algorithm, dynamic compensation is carried out for non-minimum phase characteristics such as a right half plane zero point, and a self-adaptive control law adjustment module optimizes a control strategy in real time according to an updated model. A Lyapunov stability criterion and a predictive control mechanism are introduced, the robustness and response speed of the system are improved, and a stability monitoring module identifies an abnormal state through sliding window variance analysis and peak detection and triggers a fault-tolerant mechanism to guarantee safe operation of the system.

The invention relates to the technical field of identification control, in particular to a fastener heat treatment integrated digital control system which comprises a process sequence number setting module, a graph code analysis module, a parameter instruction generation module, a temperature zone driving judgment module and a state autonomous response module. According to the method, the fastener category and the thermal process section sequence number are subjected to combined coding and embedded into the graph code to construct the structured recognition pattern, clear identification and automatic recognition of the thermal process section sequence can be achieved, the structured sequence number is automatically extracted in combination with graph code image analysis, and the section sequence index result is generated; an instruction index relation is established through multi-section target parameter aggregation to form a structural body array, a response marking system is established in combination with temperature real-time acquisition and tolerance zone comparison, the abnormal deviation state in the processing process can be dynamically recognized, and autonomous cooling response is implemented based on the temperature deviation frequency; and the process continuity of system operation, the accuracy of a control instruction and the stability of temperature zone execution are comprehensively improved.

The invention relates to the technical field of oil filters, in particular to a digital control oil filter. The filter press comprises a filter barrel and a filter pressing assembly. According to the device, in the process that the stirring barrel rotates in the first filtering cavity to drive the stirring rod to stir oil plants to accelerate exhaust of the oil plants, the stirring barrel drives the filter pressing plate to do up-down reciprocating motion in the second filtering cavity through the inner thread sleeve at the same time, when the filter pressing plate moves downwards, the oil channel is blocked and closed, and the filter pressing plate can compress the oil plants in the second filtering cavity; the piston shaft moves downwards in the suction pipe, so that the inner volume of the suction pipe is increased to form negative pressure, the oil in the negative pressure cavity is adsorbed, passes through the one-way valve and then enters the suction pipe to be temporarily stored, when the filter pressing plate moves upwards, the oil channel is smooth, and the oil temporarily stored in the suction pipe falls into the second filter cavity through the oil channel; therefore, the oil in the negative pressure cavity is introduced into the second filtering cavity, the oil in the second filtering cavity is compressed, and the oil filtering effect can be improved.

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 embodiment of the invention provides an excitation signal generation method and system and a digital eddy current sensor, and the method comprises the steps: outputting a square wave signal through a pulse width modulation assembly of a microcontroller unit, and enabling the frequency and resolution of the square wave signal to be adaptive to eddy current probes with different inductance values; inputting the square wave signal into a low-pass filter for filtering, and setting the cut-off frequency of the low-pass filter, the suppression times of higher harmonics and the attenuation slope so as to output a sine wave signal with a target total harmonic distortion range; the amplitude of the sine wave signal is collected in real time, and the pulse width modulation duty ratio and the passband gain of a low-pass filter are dynamically adjusted in combination with a digital control algorithm, so that the sine wave signal is subjected to self-adaptive adjustment and correction and is output; and taking the sine wave signal as an excitation source of an eddy current probe, and driving the eddy current probe to carry out nondestructive testing. According to the invention, the excitation signal which gives consideration to high-frequency signal generation, deep harmonic suppression and digital adaptive adjustment can be generated.

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 embodiment of the invention discloses a delay-locked loop circuit, a clock generator, a chip and electronic equipment, and belongs to the technical field of integrated circuits. The delay-locked loop circuit includes: a digital control circuit for transmitting a first adjustment code adapted to adjust the number of delay units in a coarse adjustment phase, and determining whether to adjust the first adjustment code based on a first feedback signal; in the fine adjustment stage, a third adjustment code suitable for adjusting the delay attribute parameter of the delay unit is sent, and whether the third adjustment code is adjusted or not is determined based on the second feedback signal; in the locking phase, transmitting a second adjustment code suitable for adjusting the control voltage of the delay unit, and determining whether to adjust the second adjustment code based on the third feedback signal; and the phase detection unit is used for sending the first feedback signal, the second feedback signal and the third feedback signal to the digital control circuit. A hybrid circuit of digital design and analog design is provided, high-precision clock phase adjustment is achieved, and an output clock in a wide frequency range can also be achieved.

The invention discloses a charge control method and a digital control system based on a dual-active bridge resonant converter, and belongs to the technical field of dual-active bridge resonant converter control. According to the method, a resettable integrating circuit is used for sampling resonance current and converting the resonance current into integrating voltage which is in a linear relation with charge injection quantity, and an integrating capacitor is discharged and reset before each time of injection; superposing the integral voltage and the ramp voltage; comparing the superposed signal with a threshold voltage output by a current loop through a comparator, and when the superposed signal reaches a threshold value, triggering to generate a PWM signal and switching the working mode of the converter; a switching tube is controlled to act according to a PWM signal, a switching time sequence is dynamically adjusted, effective control over transmission power is achieved, and a digital control system for achieving the method is established. According to the method, rapid dynamic response, efficient power transmission and stable operation of the dual-active bridge resonant converter are realized by controlling resonance current integration and a switching time sequence, and the energy conversion efficiency and the system reliability are effectively improved.

The invention provides an active-disturbance-rejection control method for an electromagnetic bearing two-level digital switching power amplifier embedded with model information. The method comprises the steps that an electromagnetic bearing two-level digital switching power amplifier mathematical model suitable for controller design is established based on the Fourier series theory and coil current characteristics; a direct current component in the mathematical model is defined as a modeling disturbance term, and feedforward compensation is directly carried out in the control law; parameter perturbation and an unmodeled part in the mathematical model are defined as unknown perturbation items, and real-time estimation is carried out through an extended state observer; a current item and a control input item in the mathematical model are used as known model information to be embedded into the design of the extended state observer; designing a feedback control law to carry out real-time compensation on the current item, the modeling disturbance item and the unknown disturbance item; a zero-order retainer and a current observer are adopted to carry out discretization processing on the controller, and the discretization processing is realized on a digital control platform based on a DSP (Digital Signal Processor). The method is high in current response speed and high in control precision.

The invention provides a system and a method for detecting and preventing early explosion of an electronic detonator chip. The method comprises the following steps: S1, detecting a current charging voltage; s2, selecting a reference voltage, comparing the reference voltage with the current charging voltage, and obtaining a comparison result based on a comparator; and S3, taking an early explosion prevention measure according to a comparison result. According to the invention, the multi-gear reference circuit and the comparator are used, high-precision detection of voltage change of the energy storage capacitor is realized, and the digital control logic circuit is matched to detect that the voltage of the energy storage capacitor drops abnormally and rapidly, so that an early explosion symptom is identified; by arranging the bypass switch, the energy storage capacitor is short-circuited to the ground when an early explosion symptom is recognized, so that energy of the energy storage capacitor is not released through the ignition element, early explosion is prevented, and good practicability is achieved.

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.