19results about How to "Guaranteed control stability" patented technology

The invention discloses a limited micro-space pile foundation construction method based on a multifunctional pile machine, and belongs to the technical field of constructional engineering pile foundations. The limited micro-space pile foundation construction method comprises the following construction steps that S1, a matched drilling tool is selected according to the type of a pile foundation, wherein the type of the pile foundation at least comprises one of a cast-in-situ bored pile, a stirring pile, a high-pressure jet grouting pile and a threaded expanding body steel pile; s2, pile machine equipment is assembled and placed in place, wherein the pile machine equipment comprises a main machine assembly, a drilling rig assembly, a power head assembly and a multi-channel telescopic drilling rod; and S3, pile foundation construction is conducted, specifically, corresponding pile machine equipment and auxiliary equipment are started according to different pile foundation technologies to conduct pile foundation construction. According to the multifunctional pile machine, various pile foundation types can be constructed on one pile machine, the power head with the multi-channel flow divider and the multi-channel telescopic drill rod are matched, so that the pile machine can achieve efficient and environment-friendly pile foundation construction in a limited space, the adaptability and the integration degree of equipment are improved, continuous work in construction is reduced, and the construction efficiency is improved. And the construction efficiency is improved, and various geological conditions and construction requirements can be met.

The invention discloses a reel-to-reel multilayer printing control method based on improved simulated annealing optimization LQR, and belongs to the field of multilayer printing flexible electronics. According to the reel-to-reel multilayer printing flexible electronic control method based on the improved simulated annealing optimization LQR, initial LQR controller design is carried out on an overprinting system according to a reel-to-reel overprinting system dynamic model, and a simulated annealing algorithm is selected to carry out LQR controller optimization; and self-adaptive annealing, dynamic step length, mixed neighborhood search and other methods are used to make up for the defects of slow convergence speed, difficult temperature control and the like of the traditional simulated annealing algorithm, so as to obtain the optimal control quantity and improve the overprinting precision and control stability of the system. The control quantity optimization of the overprinting system is realized, the control stability of the overprinting system is ensured, and the overprinting precision is improved.

The invention is suitable for the field of electric energy dynamic balance and distributed energy storage control, and provides a method and a device for distributed energy storage control of a photovoltaic system. Predicting respective output data of a flexible electrical load, a photovoltaic system and an energy storage system in the DC micro-grid; matching an operation regulation and control strategy of the current DC micro-grid in a preset strategy library according to the output data, and enabling the DC micro-grid to maintain electric energy dynamic balance; based on a big data technology, mining key composition equipment of the DC micro-grid, and obtaining market update data of all the key composition equipment to make a sample set; according to the method, the output of the DC micro-grid can be predicted according to the acquired related data, and whether the equipment with low updating cost is subjected to overclocking use or not is judged through the preset economical efficiency analysis model, namely the equipment updating evaluation model, so that the power supplement of the AC power distribution network is reduced.

The invention relates to the technical field of tinplate machining, in particular to a tinplate cold rolling device which comprises a rack. The controller is fixedly connected to the outer side wall of the rack; a flattening mechanism; an electric push rod is started to drive a lifting frame to move, the lifting frame drives an upper working roller to move when moving, a pressure sensor is pressed when the lifting frame moves, and the pressure at the moment is monitored through the pressure sensor; when the tinned plate passes through the second upper working roller, a second electric push rod is controlled under the action of the controller, the electric push rod drives the connected lifting frame to move through the output end, the lifting frame drives the connected upper working roller to move when moving, and the lifting frame presses the corresponding pressure sensor when moving; the pressure sensor is used for monitoring the pressure at the moment, and when the difference value of the two pressures is not smaller than 1500 KN, the controller controls the second electric push rod to be closed, so that the rolling force of the two leveling mechanisms is adjusted, and the uniformity and stability of the roughness of the tin plate are kept.

The application belongs to the technical field of intelligent robot control, and particularly relates to a self-adaptive step length control method for a live broadcast interactive robot; the method comprises the following steps: robot control instructions are recognized from a barrage text information, and the robot control instructions and a live broadcast scene image are input into a vision-language-action model for processing to obtain a candidate action sequence under current iteration; window action deviations and convergence slopes of action sites in the candidate action sequence are calculated in sequence; if the window action deviations and the convergence slopes of the first m action sites all satisfy a stable condition, and the (m+1)th action site does not satisfy the stable condition, the first m action sites are output; otherwise, the candidate action sequence is output again; the live broadcast interactive robot executes the first m action sites, and continues to process remaining action sites in the candidate action sequence until the entire robot control instruction is executed; the application can realize high-frequency and low-delay interaction while ensuring control stability, and is more suitable for a cost-sensitive and high-concurrency live broadcast environment.

The present application relates to the field of unmanned aerial vehicle flight control technology, and particularly relates to a hydrogen fuel cell hybrid power unmanned aerial vehicle cooperative control method and system. The method establishes a flight dynamics and energy dynamics cascade state model, takes the actual total output power of the hybrid power system as an intermediate virtual control quantity, introduces a disturbance observer to estimate the lumped disturbance, and generates an energy distribution control instruction based on backstepping sliding mode control to coordinate and distribute the output of the hydrogen fuel cell and the battery. The present application can realize closed-loop cooperation of flight control and energy management under the condition of slow dynamic response of the fuel cell and limited power climb, and improve the control accuracy, stability and safety of the unmanned aerial vehicle under acceleration, climb, maneuvering and complex disturbance environment.

The invention discloses an intelligent temperature monitoring, early warning and regulating method and system for mass concrete. The method comprises the following steps: constructing a long-short-term memory environment prediction model based on historical climate data, and then dynamically predicting environment parameters such as air temperature, humidity and wind speed to obtain an environment prediction data set; constructing a temperature-humidity-chemical-mechanical multi-field coupling analysis model, and correcting the model by using monitoring data, so as to comprehensively predict the temperature, humidity and mechanical response state in combination with an environment prediction result, and obtaining a mass concrete state prediction data set; further, an intelligent early warning system based on crack risk grade evaluation is constructed, a prediction result is comprehensively analyzed, the risk grade of concrete is judged, and a PID control system is used for implementing temperature regulation and control; and finally, an integrated visual display platform is established, and the whole process of monitoring, prediction, early warning and regulation is dynamically displayed and managed.

This invention relates to the field of hot water supply equipment technology, and discloses a control method and a gas water heater. The method includes: calculating the real-time theoretical current based on real-time inlet water temperature, target temperature, and real-time water flow; calculating the real-time compensation current of the gas water heater based on changes in the real-time predicted current when the gas water heater is in the variable temperature control stage; using the most recently calculated real-time compensation current as the target compensation current in response to the gas water heater entering the constant temperature control stage; calculating the target control current of the gas water heater based on the target compensation current, the real-time predicted current, and the real-time theoretical current, and adjusting the proportional valve current of the gas water heater based on the target control current. This uses the change in the real-time predicted current during the variable temperature control stage as the adjustment benchmark during the constant temperature control stage, achieving incremental output of the real-time predicted current, ensuring control stability, and employing parallel control of theoretical calculation and feedback control algorithms to improve response speed.

The utility model discloses a pole piece waste treatment device. The pole piece waste treatment device comprises an adsorption assembly, a laser assembly and a side suction port assembly, the adsorption assembly comprises a negative pressure pipe, a cutting cavity, an adsorption block and an adsorption plate, the adsorption plate is installed on the adsorption block and located in the cutting cavity, and the adsorption block is connected with negative pressure through the negative pressure pipe, so that the adsorption plate can adsorb a pole piece; the laser assembly comprises a laser module arranged towards the adsorption assembly, the laser assembly is used for cutting the pole piece so as to form a pole lug on the pole piece and obtain a sheet-shaped waste material, and the laser assembly is also used for chopping the sheet-shaped waste material into a crushed waste material; the side suction port assembly comprises a side suction port negative pressure pipe, and one side of the side suction port negative pressure pipe communicates with the adsorption assembly and is used for sucking the broken waste. By means of the arrangement, the pole piece cutting stability, the pole lug forming quality and the production efficiency are improved, a vacuum belt assembly and a lower waste collecting opening adopted in the prior art are omitted, the equipment production cost is reduced, and meanwhile waste of the pole piece is avoided.

The invention discloses a self-locking anti-backlash and segmented loading coating scratch testing device, comprising: a transmission mechanism mounted on a frame and used for providing rotation power and realizing self-locking; the loading mechanism is connected with the output end of the transmission mechanism and is used for converting the rotary motion into linear pressing motion and providing a linearly changing load for the pressing head; the measuring module is integrated on the loading mechanism and is used for detecting a normal load and a tangential shear force applied to the pressure head in real time; and the moving platform is used for bearing the sample. The transmission mechanism comprises a servo motor and a double-lead worm and gear pair driven by the servo motor. The loading mechanism comprises a cam shaft, a linear cam and a plane follower, and the working end of the plane follower is kept in contact with the contour curved surface of the linear cam. According to the invention, the dual-lead worm and gear transmission with a self-locking anti-backlash function is combined with the linear cam loading mechanism with segmented profile curves, so that the load control accuracy and the loading linearity are ensured, and the coating scratch test precision is improved.

The invention relates to the technical field of motor control, and provides a motor control method and device and electronic equipment, and the motor control method comprises the steps: judging whether a vector control motor is in a driving state or a power generation state, and obtaining a first judgment result; judging whether the vector control motor is in a deep flux weakening state to obtain a second judgment result; according to the first judgment result and the second judgment result, a voltage limiting strategy is selected, and the voltage limiting strategy comprises a voltage limiting strategy preferentially meeting the q-axis voltage or a voltage limiting strategy preferentially meeting the d-axis voltage; generating a limited d-axis voltage instruction and a limited q-axis voltage instruction according to the selected voltage limiting strategy; and controlling the vector control motor based on the limited d-axis voltage command and the limited q-axis voltage command. According to the method, the voltage utilization rate of the bus can be improved while the current control stability is ensured, so that the system efficiency is improved.

The invention discloses a linear motor control method based on feedforward adaptation and a storage medium, and relates to the technical field of motor control. The method comprises the following steps: determining a position error based on an actual position of the linear motor and a preset reference position, and determining an acceleration error based on an actual acceleration of the linear motor and a preset reference acceleration; a feed-forward parameter change rate is determined based on a preset adaptive formula and the reference speed, the reference acceleration and the acceleration error of the linear motor, a feed-forward control parameter is determined based on the feed-forward parameter change rate, and the adaptive formula is obtained by deducing an error kinetic equation of the linear motor through a Lyapunov stability criterion; determining a feed-forward control quantity based on the feed-forward control parameter, the reference speed and the reference acceleration, determining a feedback control quantity based on the position error, and determining a total control quantity according to the feed-forward control quantity and the feedback control quantity; and driving the linear motor to move according to the total control quantity.

This invention discloses a multi-parameter coupled control method for a dry acetylene generator, belonging to the field of chemical production process control. The method collects process parameters, equipment operating parameters, and status signals from the entire dry acetylene generator process. After outlier removal, time-series alignment, and standardization preprocessing, a unified process data view is constructed. Combining the calcium carbide hydrolysis reaction mechanism with historical operating data to mine the coupling correlation patterns between parameters, a coupling mechanism data fusion model is constructed to quantify the impact of single parameter variations. Based on the model output, a model predictive control algorithm is used to set control objectives and constraint boundaries, continuously solve parameter combinations, and output the setpoints for operating parameters. Control commands are issued and operational feedback data is collected to dynamically correct model parameters, achieving closed-loop regulation. This method can achieve multi-parameter coordinated control, reduce operational fluctuations caused by parameter linkage, improve operating condition adaptability and control stability, and ensure smooth operation of the production process.

The present application belongs to the technical field of data processing and industrial control, and relates to a food additive production management and control method and system based on data processing. The method comprises the following steps: firstly, collecting multi-source rheological data such as pipeline outer wall temperature, metering pump operating frequency and inlet and outlet pressure difference and carrying out filtering pretreatment; then, calculating the equivalent temperature of the fluid center by using the heat conduction hysteresis characteristic, and accurately correcting the heat hysteresis error caused by the environmental temperature fluctuation; based on the equivalent temperature and the operating parameters, constructing the engineering index containing the temperature sensing sensitivity and the shear thinning factor, calculating the dynamic flow resistance characteristic value, and real-time decoupling the combined influence of temperature and shear rate on the fluid viscosity; finally, according to the deviation ratio of the flow resistance characteristic value and the flow resistance reference value, and combining the flow state instability reflecting the pipeline aging state, generating an adaptive flow compensation instruction to adjust the metering pump. The present application effectively improves the feeding accuracy of trace additives under complex working conditions.

According to the cluster patrol flight fire extinguishing unmanned aerial vehicle cooperative control method based on arrival time consistency, a self-adaptive adjustment mechanism and a time compensation strategy are introduced in the cooperative process, the flight path is corrected in real time through node coordination, and it is ensured that when the state of an ignition point or environment information changes, the unmanned aerial vehicle can be controlled in real time. And rapid convergence at the same disposal moment can be realized, and the synchronous disposal precision and the overall cooperative efficiency of the system in a complex fire extinguishing task environment are improved. According to the method, a novel control strategy is provided for the patrol flight fire extinguishing unmanned aerial vehicle cluster, so that the patrol flight fire extinguishing unmanned aerial vehicle cluster can form and keep stable formation flight, and synchronous disposal of multiple patrol flight fire extinguishing unmanned aerial vehicles for the same ignition point is realized.

The present invention relates to the technical field of thermally-insulated doors and windows, and in particular to a fully automatic intelligent thermally-insulated doors and windows system, comprising a management platform, a data retrieval unit, a potential control inducing unit, a front-end control deviation unit, a state display unit, a state display unit, an execution evaluation unit, a control safety evaluation unit and a management execution unit; the present invention analyzes the thermally-insulated doors and windows from three perspectives, namely, historical potential interference, operating status and execution performance, to improve the operating safety and control stability of the thermally-insulated doors and windows, and analyzes the operating status and execution performance of the thermally-insulated doors and windows under the premise of stable front-end control, and analyzes the historical potential interference in combination to improve the early warning timeliness and operating safety of the thermally-insulated doors and windows, and performs information fusion evaluation analysis in the form of information feedback and information fusion, so as to timely optimize the entire control system of the thermally-insulated doors and windows, so as to improve the control efficiency and safety of the thermally-insulated doors and windows.

The invention relates to a frequency converter control method, device and equipment, a frequency converter and a medium, and the method comprises the steps: obtaining the temperature of a power switch device of the frequency converter, and determining a space vector pulse width modulation mode of the frequency converter according to the temperature of the power switch device; and then, on the basis of the space vector pulse width modulation mode, determining a carrier frequency and a space vector time sequence corresponding to the carrier frequency, and performing space vector pulse width modulation according to the space vector time sequence to obtain a three-phase modulated wave signal, thereby controlling a power switch device in the frequency converter through the three-phase modulated wave signal. The problem that the output power of the frequency converter is forcibly reduced or the device is damaged due to the fact that the temperature of the power switch device is too high in the prior art is solved.

Embodiments of the present application provide a servo control method and device, electronic equipment and computer readable storage medium, and relate to the technical field of mechanical hand. The method comprises: obtaining the angular position, angular velocity and torque current feedback of the motor in the current control period; estimating the state vector of the current control period online through a modal energy observer, obtaining an inertia reshaping coefficient according to the estimated value of the equivalent inertia and the preset virtual reference inertia, and determining at least one current compensation amount for inhibiting torsional vibration or vibration excitation according to the inertia reshaping coefficient; and superimposing the at least one current compensation amount to the torque instruction of the current control period of the current loop. The embodiments of the present application effectively inhibit the torsional vibration under high load inertia ratio, and significantly shorten the end stabilization time.

The invention discloses a method and system for controlling the opening degree of an adjusting baffle of a wind and smoke system of a thermal power plant. The control method comprises the steps that the position of an adjusting baffle electric head swing arm is positioned according to the full-opening and full-closing positions of an adjusting baffle; the method comprises the following steps of: opening and closing an adjusting baffle plate on a DCS (Distributed Control System) of a power plant in a full stroke, and respectively measuring dead zone opening degrees of the adjusting baffle plate in opening and closing directions and actual opening degrees and instruction opening degree deviation values under other different opening degree instructions; respectively fitting relation functions f1 (sigma) and f2 (sigma) of the deviation values of the opening direction and the closing direction of the adjusting baffle and the opening degree instruction according to the opening degree and the deviation value of the instruction; and establishing an instruction opening correction function f3 (sigma) and an adjusting baffle opening instruction correction module on the DCS control system of the power plant, correcting an adjusting baffle switching instruction of the DCS control system, and sending the corrected adjusting baffle switching instruction to the air and smoke baffle, thereby realizing accurate correspondence between the baffle switching instruction and an actual switching position.