140 results about "Control curve" patented technology

The invention relates to the technical field of chip test engineering control, in particular to an active temperature control method and system for a chip aging tester, and the method comprises the steps: analyzing a test process according to test task parameters, and evaluating the expected thermal load change rate of a test chip, so as to dynamically generate a chip target junction temperature control curve; based on the chip target junction temperature control curve, the actual chip junction temperature and the current actual furnace temperature, the theoretical furnace temperature is obtained through a junction temperature closed-loop control algorithm, the furnace temperature compensation amount is calculated through a feedforward compensation algorithm in combination with the test state parameters, and the ideal furnace temperature is obtained according to the theoretical furnace temperature and the furnace temperature compensation amount; the actual temperature control quantity is obtained according to the basic temperature adjusting quantity and the temperature control compensation quantity, a preset chip target junction temperature control curve can be tracked more accurately, transient and steady state errors caused by test program switching and environment fluctuation can be more effectively restrained, and control over the chip junction temperature with higher precision and faster response is achieved.

The invention discloses a high-precision die-casting action closed-loop control method and device and a medium. The method comprises the following steps of: in a rapid injection stage, adopting a smooth curve which is generated by adopting Lagrange interpolation and comprises a starting point, an end point, a middle point and two symmetrical points which are symmetrical along the middle point and are used for controlling the radian of the curve as a first opening control curve of the outlet servo valve; and in the mold unlocking and locking stage, an acceleration-constant speed-deceleration three-section motion curve is adopted as a target motion curve of the driving oil cylinder, and a second opening degree control curve of the proportional valve used for controlling the driving oil cylinder to act is constructed based on the target motion curve. The device and the medium are both used for implementing the method. The method has the beneficial effects that the opening signal of the outlet servo valve is planned through Lagrange interpolation, the opening curve can be smooth, and therefore high-speed overshoot suppression is achieved; and meanwhile, through the arrangement of the three-section type motion curve, the pressure step of the driving oil cylinder can be effectively relieved.

The invention provides a range hood operation control method and device, a lifting type range hood and electronic equipment, and the method comprises the steps: obtaining a to-be-cooked food material and a user portrait in response to a cooking starting operation; generating a personalized menu based on the to-be-cooked food materials and the user portrait; and generating a control curve of the range hood based on the personalized menu, wherein the control curve comprises a range hood lifting curve and / or a range hood air volume curve. According to the method, the fine-grained user portrait is constructed by collecting the biological characteristics, the dietary habits and the cooking behavior characteristics of the user, and the control curve of the range hood adaptive to the individual preference is generated accordingly, so that the individual suitability and accuracy of the control curve of the range hood are remarkably improved.

The invention provides a thickness measuring device and method based on progressive control. The device comprises a U-shaped sensor supporting moving part and a contact type thickness measuring module. The contact type thickness measuring module comprises a driving controller, a first displacement sensor and a second displacement sensor, wherein the first displacement sensor and the second displacement sensor are arranged at the first end and the second end of the U-shaped sensor supporting moving part respectively, and a measured object is located between the first displacement sensor and the second displacement sensor. A detection head of the first displacement sensor is aligned with a detection head of the second displacement sensor, and the first displacement sensor and the second displacement sensor are both provided with driving sources; in the thickness measuring process, the driving controller controls the driving source to respectively drive the detection head of the first displacement sensor and the detection head of the second displacement sensor to gradually clamp a measured object according to a pre-calibrated step control curve and obtain a first thickness value of the measured object. The device can improve the accuracy of sheet thickness detection.

A power tool includes a trigger module, a motor unit, and a controller electrically connected to the trigger module and the motor unit. The controller stores parameter data that define a common control curve that represents a corresponding relationship between a reference pressed depth and a reference rotation speed. The controller obtains a pressing value from the trigger module, and outputs a control signal at least based on the common control curve and the pressing value to the motor unit. The common control curve has a low-speed curve segment and a high-speed curve segment. In a low speed mode, the controller outputs the control signal based on the low-speed curve segment. In a high speed mode, the controller outputs the control signal based on a high-speed control curve composed at least of the low-speed curve segment and the high-speed curve segment.

The invention provides a self-adaptive short-circuit fault current-limiting control method and system for a primary and secondary fusion circuit breaker, and relates to the technical field of circuit protection and manufacturing, and the method comprises the steps: collecting a current value, a voltage value and a state quantity of a circuit breaker, and forming a first operation parameter set; performing feature extraction based on the amplitude abrupt change, the phase offset and the harmonic component, generating a first feature vector, and matching the first feature vector with a preset short-circuit fault feature template to obtain a fault recognition result, a fault type and a position identifier; a dynamic current-limiting control curve is calculated according to the identifier and the current value, a current-limiting control parameter set is generated, and a current-limiting execution mechanism is controlled to obtain current-limiting response data; after the action is completed, a second operation parameter set is collected, current limiting effect analysis is executed to generate state feedback data, and a current limiting control parameter set is updated based on the feedback data; and factory calibration can be carried out on the power electronic current limiting module serving as a current limiting execution mechanism. According to the method, the adaptive capacity and accuracy of current limiting control are improved.

This application discloses a vehicle trunk lid control method, a vehicle trunk lid control device, an electronic device, a storage medium, and a vehicle, comprising: acquiring standard control strategy information for the vehicle trunk lid; the standard control strategy information including the torque control curve and stroke control range of the motor driving the trunk lid to open or close under standard vehicle conditions; acquiring vehicle status information; generating strategy adjustment information for the standard control strategy based on the vehicle status information; and adjusting the standard control strategy to control the motor driving the trunk lid to open or close based on the current vehicle status and the corresponding strategy adjustment information. Through the above solution, the torque of the motor driving the trunk lid is adjusted, solving the problems of insufficient motor torque when parked on a sloping road surface, the trunk lid opening too high and hitting the garage fire sprinkler head, and the difficulty in closing the trunk due to air pressure blockage during the closing process, thus making the closing process reliable.

The application belongs to the technical field of multispectral imaging system, and discloses a filter wheel control method for multispectral arbitrary spectrum imaging. The method compares the actually detected current position with the previously calibrated position, obtains the shortest path planning, avoids the detected blind area during the movement, drives the filter wheel to rotate according to the corresponding control curve stroke mode, so that the required filter aligns the optical path for imaging. The application has simple system structure requirement and simple control method implementation, can effectively and quickly complete the control of any filter in the filter wheel within half a cycle, and realizes multispectral time-sharing resident imaging.

The invention provides a personalized temperature control method, system and device based on user feedback and a storage medium, and the method comprises the steps that a personalized compensation data array of a user is loaded, and the personalized compensation data array comprises an air blower gear and a target air outlet temperature compensation value; the working mode of the air conditioner and user operation are monitored in real time, and when the air conditioner is in a refrigerating or heating mode, adjustment of a user on gears and set temperature is continuously tracked; when effective adjustment is detected, a current air conditioner load demand characterization value is obtained, the change amount caused by user operation is calculated, a corresponding compensation value is calculated according to a preset learning rate, and the compensation value is updated to a compensation array of a corresponding user; the compensation value is subjected to confidence attenuation along with time, and correction is carried out in combination with user comfort evaluation; and in combination with the basic control curve and the personalized compensation value, the target air blower gear and the target air outlet temperature are calculated and output. According to the method, personalized calibration of the comfort of the vehicle air conditioner can be realized only according to daily operation behaviors of the user without massive data training.

This invention discloses an SNCR control method based on the dynamic NOx generation characteristics in a furnace. The method includes at least the following steps: (1) obtaining NOx generation characteristics through experimental testing under suitable operating conditions, a suitable location for obtaining the dynamic generation characteristic curve, and a suitable operating oxygen level. X (2) Dynamically generate characteristic curves and related characteristic parameters; (3) Obtain typical NO through experimental testing. X Dynamically generate characteristic curves for individual NO in vibrating grate boilers. X The generation cycle is divided into 4 stages: "NO X "Rapid concentration drop phase", "NO" X "Low concentration operation stage", "NO" X "Rapid increase in concentration phase", "NO" X "High concentration operation stage"; (3) through NO in the furnace X Dynamically generate characteristic parameters to construct SNCR reducing agent control curves; this invention is based on in-furnace NO X The dynamic generation characteristics form the SNCR control logic (reducing agent control curve), which allows the reducing agent to track the real-time NO in the furnace effectively within a single cycle. X The concentration of the reducing agent can be reduced by about 20%.

This application relates to a high-precision motion control system and method for a coordinate measuring machine (CMM). The high-precision motion control system includes: a control handle for generating a corresponding target control signal in response to control operations; a motion controller communicatively connected to the control handle and the CMM; the motion controller receives the target control signal, queries a preset control curve based on the target control signal, determines the speed control coefficient corresponding to the target control signal, generates a target control command for controlling the probe based on the speed control coefficient, and sends the target control command to the CMM; wherein the target control command controls the movement direction and speed of the probe for measuring the workpiece. This solves the problems of low efficiency and poor accuracy caused by inflexible speed control in manual operation, improves the flexibility and accuracy of speed control in manual operation of the CMM, thereby enhancing measurement efficiency and reliability.

The embodiment of the invention provides a clutch combination pressure correction method, system and equipment, a tractor and a medium, and belongs to the field of tractor electric control. The method comprises the steps of obtaining type information and a load level of a current agricultural implement; querying a parameter table according to the type of the agricultural implement, and obtaining a corresponding clutch pressure correction coefficient; and in the clutch combination process, according to the clutch pressure correction coefficient, in combination with the current control stage of the clutch, the clutch pressure control curve is corrected in real time. The agricultural implement type information is obtained, the correction coefficient is determined according to the agricultural implement type information, then the pressure control curve is dynamically corrected in the clutch combining process, the clutch combining process can be optimized according to different load characteristics of agricultural implements, and therefore the clutch combining efficiency is improved while the power transmission reliability and the anti-skid and anti-friction capacity under the heavy-load working condition are ensured. The combination smoothness and comfort under the light-load working condition are improved, and the service life of the clutch and a transmission system is prolonged by reducing unnecessary impact and sliding friction work.

The invention relates to the technical field of rotating machinery impellers, in particular to a high-efficiency low-power axial flow blade which comprises an irregular curved surface formed by sweeping a plurality of wing-shaped sections along a blade stacking line from a blade hub to the maximum circumferential direction of a blade top; the plurality of airfoil sections comprise a 0% blade height section airfoil section, a 25% blade height section airfoil section, a 50% blade height section airfoil section, a 75% blade height section airfoil section and a 100% blade height section airfoil section; the airfoil profile center line of the 0% blade height section airfoil profile is composed of three sections of control curves, and the airfoil profile center line of the 25% blade height section airfoil profile is composed of a section of control straight line and a section of control curve. The curve control equation of the control curve is a quadratic curve equation, the linear control equation of the control straight line is a linear equation, and the adjacently connected control curve in the three sections of control curves, the section of control straight line and the equation coefficient value of the section of control curve meet the continuity condition. The aerodynamic performance and noise are optimized through the angle distribution design of the axial flow blades.

The embodiment of the invention discloses a visual user interaction cooking control method and system based on AR / VR, and the method comprises the steps: generating an initial power frequency control curve in a self-adaptive manner according to a user health file and health target parameters, and carrying out the heating according to the power frequency control curve; predicting an ideal temperature-time curve according to the power frequency control curve, and displaying the ideal temperature-time curve in a VR visualization manner; carrying out self-adaptive adjustment on the independent power and frequency of each heating area; obtaining a short-time risk index within a preset time, establishing an online optimization health objective function based on the short-time risk index, and solving an optimal adjustment amount which is used for correcting an initial power frequency control curve; and displaying the virtual firepower ring, the risk level and the health score in an overlapped manner through an AR interface. According to the invention, dynamic user adaptation is realized, the risk of grease oxidation and cooking fume generation is reduced, and intuitive visual interaction experience is provided.

A method controls a circulation pump installed in a system, equipped with one or more temperature-controlled valves for heating or cooling. The pump is operated at an operating point defined as an intersection point of an adaptable pump characteristic curve and a variable system characteristic curve, that varies with a common degree of openness of the valves. The pump characteristic curve is adapted by setting a pump speed, controlled such that the operating point follows an adjustable control curve, adjusted when the system characteristic curve changes in order to keep the common degree of openness in a desired range between a minimum and a maximum common degree of openness, including determining a system variable that is susceptible to system characteristic curve changes, and using the system variable as an input to provide a feed forward signal to automatically adjust the control curve in a feed forward control.

The invention relates to the technical field of image processing, and discloses a motion data fusion and path generation method for a virtual camera, and the method comprises the steps: collecting optical mark position information of the virtual camera and local displacement information of local rocker equipment, and obtaining global pose data and incremental displacement data; performing three-dimensional virtual coordinate mapping on the global pose data and the incremental displacement data to obtain virtual global pose data and virtual incremental displacement data; performing dynamic weight fusion on the virtual global pose data and the virtual incremental displacement data to obtain target pose data; performing motion path fitting on the three-dimensional coordinate information of the key points set by the user to obtain a continuous Bezier curve track; performing differential analysis on the time sequence information of the target pose data to obtain a movement speed so as to construct a speed control curve; performing global constraint smoothing on the continuous Bezier curve trajectory to obtain a motion path; according to the invention, the efficiency of motion data fusion and path generation of the virtual camera can be improved.

The invention provides a self-adaptive control method of an electric anastomat, and relates to the technical field of medical instruments, initial parameters are selected to be input into a preset model based on the type of target biological tissue, and the track of target displacement and target output force of an anastomat driving motor along with time change in the percussion process is defined; the biological tissue state is sensed in real time in the percussion process, signals are collected and input into a biological tissue mechanical model, biological tissue state characteristic parameters are estimated online in real time through a parameter identification algorithm, and the biological tissue state characteristic parameters are compared with preset model parameters; performing self-adaptive disturbance compensation on a comparison result of the obtained state characteristic parameter and a preset model parameter by using an expansion state observer, and processing deviation of a target track by using a fal function to obtain an anastomat control signal; and applying the final control signal to a driving motor, so that the output force of the driving motor accurately tracks the target output force defined by the self-adaptive real-time percussion control curve until the percussion of the anastomat is completed.

The invention provides an integrated energy station energy storage control method and device and a storage medium, belongs to the technical field of integrated energy station energy storage control, and solves the technical problem that the photovoltaic utilization rate is difficult to improve in existing integrated energy station energy storage scheduling. The method comprises the following steps: collecting multi-source data of a comprehensive energy station system, constructing a data set, and dividing the data set into daily initial input data and real-time input data; constructing an energy storage flexible control model based on the multi-source data to generate a control strategy; the control strategy comprises an energy storage whole-day strategy and energy storage real-time control, the energy storage system is dynamically adjusted, and an energy storage control curve is output; converting the energy storage control curve into a fine adjustment control instruction, and sending the fine adjustment control instruction to an energy storage system; and constructing an energy storage strategy multi-objective optimization model, and solving to obtain a global optimal schedule charging and discharging strategy. The method is applied to energy storage strategy optimization, scheduling and control of the integrated energy station, and improves the photovoltaic consumption capability.

The invention discloses an in-situ voltage control method, system and device based on power and voltage and a medium, and belongs to the technical field of in-situ voltage control, and the method comprises the steps: inputting power distribution network parameters, distributed power supply parameters and operation constraint conditions; constructing a master control curve according to the power distribution network parameters and the distributed power supply parameters; obtaining distributed power supply parameters according to the sampling period, and combining the distributed power supply parameters with the master control curve to obtain a period control curve; according to the period control curve, constructing an active power output strategy and a reactive power output strategy in combination with the distributed power supply parameters corresponding to the period and the actual power distribution network parameters; and the active power output strategy and the reactive power output strategy are fed back to the distributed power supply, and local voltage control is adjusted. According to the invention, the problems of lack of control factors and voltage regulation response lag in the prior art are solved.

The application provides an inverter droop control method and system, electronic equipment and a readable storage medium. The method comprises: generating an initial curve family of reactive power and voltage on the inverter side based on an established single-machine infinite bus (SMIB) model; screening the generated initial curve family according to a preset power system static stability criterion to obtain a stable region atlas capable of meeting the stable operation of the SMIB model; setting various different droop control curves in the stable region atlas; and determining a droop coefficient range based on the intersection between the droop control curves and the stable region atlas, and performing reactive power-voltage droop control based on the droop coefficient range. The application can accurately identify the stable domain of the reactive power-voltage droop coefficient of the network type inverter in advance and offline by constructing the SMIB model and coupling the inherent mathematical relationship and strict stability criterion.

The application provides a grouting pressure and flow integrated optimization method based on diffusion inversion and gas grading, and relates to the technical field of grouting pressure and flow optimization. It comprises the following steps: constructing a multi-field coupling prior model and, based on the final multi-field coupling prior model, collecting on-line field data and performing data preprocessing to obtain a time series data set; taking the final multi-field coupling prior model as a forward modeling framework and taking the time series data set as a constraint, constructing a joint objective function and determining a parameter posterior distribution; based on the parameter posterior distribution and gas state information, dynamically evaluating risks and performing multi-objective optimization, and outputting a joint control curve and a corresponding execution plan. The application solves the problem that, in the prior art, real-time closed-loop control cannot be realized under uncertain conditions to achieve parameter distinguishability, dynamic gas grading linkage and opportunity constraint multi-objective optimization.

The application relates to the technical field of automatic guided vehicle control and industrial robots, in particular to a control method and system of a trackless mold changing vehicle, an intelligent terminal and a storage medium, which method comprises the following steps: acquiring real-time mechanical parameters in a mold core dragging process; based on a preset mold core-vehicle body dynamic coupling model, calculating a vehicle body stability prediction value; when the preset stability threshold is exceeded, dynamically adjusting a support pressure distribution and synchronously correcting a traction force control curve; in the mold core dragging process, real-time monitoring of a relative position error is carried out, and based on the relative position error and the corrected traction force control curve, a cooperative compensation control is executed to maintain the mold changing operation accuracy. The application has the effects of improving the cooperative control accuracy of the vehicle body stability and the traction force of the trackless mold changing vehicle in the process of dragging a heavy mold core, and improving the position error compensation capability between the mold changing track and the docking track.

The invention discloses an intelligent control method and device for an electronic transformer and a storage medium, and relates to the technical field of transformer control, and the method comprises the steps: obtaining the power demand information of a plurality of loads at the downstream of the electronic transformer, and obtaining the power demand information of each load based on the power demand information and the electrical characteristics of each load; generating a deterministic load sequence for defining a switching or power change plan of each load in a future time period; the core innovation of the invention lies in breaking through the traditional closed-loop regulation thought, and realizing open-loop feed-forward following control by obtaining a load plan in advance and generating a deterministic control curve. The key of the conversion lies in the accuracy of the deterministic load sequence, and the load demand can be accurately matched only when the load action is a control curve which can be planned and predictable in advance and is generated in advance, so that the output stability can be ensured without real-time feedback adjustment.

The invention relates to a device and method for intelligently controlling natural gas compression and mixing gas lift based on servo direct drive, and the device comprises a compression air cylinder which is internally provided with a compression piston used for doing reciprocating linear motion; the servo direct drive unit comprises a servo electric cylinder and a servo control system which are electrically connected, and the servo electric cylinder is in driving connection with the compression piston; wherein the servo control system is configured as follows: in each compression stroke of the compression piston, based on compression working condition parameters obtained in real time, a piston speed control curve suitable for the compression stroke is calculated and generated; and controlling the servo electric cylinder to drive the compression piston to operate according to the non-uniform motion rule defined by the piston speed control curve. According to the device, the inherent impact vibration problem of a traditional compressor can be directly solved, and the comprehensive performance of equipment in the aspects of efficiency, reliability and intelligence is comprehensively improved.

A method for controlling a device of a motor vehicle includes, in a first time step, receiving data characterizing a state of the vehicle and the environment, determining an initial vector on the basis of the data, selecting a first control profile on the basis of the initial vector, transmitting the first profile so as to control the device, and then, in a second time step, updating the data, determining an updated vector, selecting a second control profile on the basis of the updated vector, and if the second profile is different from the first profile, transmitting the second profile so as to update the control of the device of the vehicle.

The application discloses a motor control double-arm Rubik's cube robot method based on a robot vision recognition algorithm and belongs to the technical field of motor control double-arm Rubik's cube robot methods. In matlab, the starting and ending speed, the maximum speed, the total time, the uniform speed time, the subdivision number of a stepping motor, the subdivision interval, the rotation angle parameter, the specified control curve T type and the S type are defined according to the subdivision number and the rotation angle. The total pulse number is calculated, the total pulse is distributed to the acceleration, uniform speed and deceleration stages, the specified control curve T type and the S type are defined according to the subdivision number and the rotation angle, the total pulse number is calculated, the total pulse is distributed to the uniform speed, acceleration and deceleration stages, the acceleration stage is divided into two sections, namely, the S type, the jerk acceleration is calculated, the speed change is calculated through integration, and the acceleration stage pulse cycle is generated. When the acceleration stage is the uniform acceleration stage, namely, the T type, the acceleration is calculated, the speed linearly grows in each pulse cycle, and the acceleration stage pulse cycle is generated.

According to the solution constant-flow-speed pouring control method, a solution storage tank and a driving mechanism for driving the solution storage tank to rotate are included, and continuous constant-flow-speed pouring control over a solution in the solution storage tank is achieved by controlling the rotation angular speed output by the driving mechanism, the rotation angular velocity control curve output by the driving mechanism comprises a first pouring turning point, specifically, a first pouring section is formed before the first pouring turning point is reached, and the rotation angular velocity output by the driving mechanism in the first pouring section is determined by a first curve; a second pouring section is formed after the first pouring turning point is reached, and the rotating angular speed output by the driving mechanism in the second pouring section is determined by a second curve; compared with the prior art, the device has theoretical support and can be widely applied to liquid storage tanks with different sections to realize constant-flow-speed dumping; the rotation angular velocity of the liquid storage tank is controlled to realize constant-flow-velocity pouring of the solution in the liquid storage tank; the method can be implemented without being influenced by factors such as temperature environment.

The invention discloses a commercial illumination energy consumption optimization control method based on a high-luminous-efficiency lamp, and belongs to the technical field of illumination control, and the method specifically comprises the steps: carrying out the clustering analysis of data in a time sequence database according to the function region of a commercial place, and dividing region groups with different illumination demand characteristics; the accumulated use duration of each high-luminous-efficiency intelligent lamp is extracted, the actual luminous efficiency is calculated in combination with a lamp luminous efficiency attenuation coefficient formula, and the illumination demand data of the area group is corrected; generating a lamp dimming control curve corresponding to each area group according to the corrected area group illumination demand data, and transmitting the lamp dimming control curve to an intelligent lamp controller; enabling the intelligent lamp controller to adjust the output power of the lamp according to the dimming control curve, and collecting the actual energy consumption and illumination effect data of each lamp in real time; energy consumption and lighting effect data collected in real time are fed back to the system, a preset standard value is compared, the lighting demand time sequence database is updated, and a next-round dimming control curve is optimized.

The invention provides an aluminum alloy homogenizing furnace abnormal state detection method based on data driving, which comprises the following steps of: fitting heating section data and natural gas consumption data of an aluminum alloy homogenizing furnace in a normal state by using a time domain response curve of a second-order control system under a step signal in advance to obtain a corresponding standard control curve; acquiring natural gas consumption data and electric energy consumption data of the to-be-detected aluminum alloy homogenizing furnace in each production process; calculating an accumulative error between the heating section data and a preset heating electric energy standard control curve through a fixed sliding window, calculating an accumulative error between the natural gas consumption data and a preset natural gas standard control curve, and preliminarily judging that the data is abnormal when the accumulative error corresponds to a corresponding accumulative error threshold value; and re-checking the abnormal data by adopting an isolated forest anomaly detection model.

The present invention relates to a rotary tablet press, which comprises a rotor 10, at least one filling station 3, at least one compression station 5, and at least one discharge station 6 distributed along the rotation path of the rotor 10, and a fixed control curve for controlling the movement of an upper punch and a lower punch along the rotation path, the control curve having a plurality of curved portions, at least one curved portion for the lower punch forming a pressure rail at least partially inclined in the rotational direction in the compression station region. The present invention proposes that, in order to improve the compressibility of the raw material into tablets, at least one pressure rail 50 for the lower punch in the compression station 6 has at least a partially curved upper surface 54. The present invention also relates to a pressure rail 50 designed to correspond as a curved portion of the control curve. According to a further inventive concept, it is proposed that in the compression station, a pressure roller is omitted and only a pressure rail is used.