722 results about "Pressure feedback" patented technology

The invention provides a servo hydraulic system optimization control method and system for a press machine test platform, and relates to the technical field of press machines, and the method comprises the steps: building a state space expression and building a mathematical model of a servo hydraulic system based on dynamic characteristics by deducing mathematical expressions of all components of the system; building a predictive control algorithm based on the mathematical model, solving a quadratic programming problem by adopting a rolling optimization strategy through building a state space predictive model and determining a multi-objective optimization function to obtain an optimal control sequence, and taking a first element of the optimal control sequence as control input at the current moment; feedforward compensation and pressure feedback compensation are introduced, the feedforward compensation constructs a compensation model based on an inverse system of a press transfer function and pre-corrects a control signal, and the pressure feedback compensation designs a digital filter based on a pressure error, fuses a feedforward compensation signal with a pressure feedback compensation signal and superposes the fused signal with the control signal; and obtaining a final control signal.

The invention relates to the technical field of vacuum extraction control, and discloses a multi-stage vacuum extraction control system which comprises a central processing unit, a multi-stage vacuum pump set control module, a vacuum degree dynamic monitoring module and the like. The multi-stage vacuum pump set control module coordinates all stages of pumps to work according to a preset vacuum degree target value, and the vacuum degree dynamic monitoring module collects pressure data in real time and judges abnormity. The pressure gradient adjusting module adjusts the extraction rate of the adjacent pump to maintain the vacuum gradient stable when the pressure is abnormal, and the abnormity response module controls starting and stopping or rate correction of the pump according to the abnormity level. In addition, the system further has the functions of vacuum pump efficiency evaluation, pressure feedback compensation, leakage detection, redundancy switching, historical data backtracking, collaborative optimization and the like. The system can accurately control the vacuum degree, efficiently deal with abnormities and realize equipment state monitoring and optimization, and is widely applied to the fields with high requirements on the vacuum degree, such as semiconductor manufacturing and vacuum coating.

The invention relates to the technical field of intelligent control, in particular to a composite material forming process intelligent control system which comprises a micro-scale deformation detection module, a stress offset correction module, a temperature gradient regulation and control module, an interlayer curing balance module and a forming intelligent control execution module. According to the method, a deformation rate sudden change area is accurately positioned through micro-scale detection, and stress concentration is found in advance, so that stress adjustment is more targeted, the local stress overload influence is reduced, real-time pressure feedback is combined with target pressure offset analysis to optimize a loading mode, uniform stress in the curing process is ensured, and the defect risk is reduced; high-precision temperature gradient monitoring and thermal diffusion rate analysis improve temperature control precision and improve interlayer temperature equilibrium, curing rate change rate calculation and heat conduction path optimization dynamically adjust a heat dissipation channel and promote uniform curing, stress-temperature distribution equilibrium degree analysis is combined with a deformation trend to optimize heating and pressure parameters, and uniform curing is achieved. And the forming stability and the quality consistency are improved.

The invention discloses a touch control method based on a pressure sensor, which relates to the technical field of sensor equipment, and comprises the following steps: designing a touch control panel; distributing and calibrating a sensitivity area; designing a multi-layer touch pressure sensing fusion algorithm; designing a dynamic pressure feedback mechanism; designing a nonlinear pressure interval classification mechanism; and performing pressure sensing and dynamic gesture recognition. According to the touch control method based on the pressure sensor, through multi-level design and innovative model optimization, innovative technologies such as differential sensitivity design, a dynamic sensitivity adjusting mechanism, pressure sensing and gesture recognition are introduced into the touch control technology of the pressure sensor, so that the precision and efficiency of complex gesture analysis can be remarkably improved; and the false touch rate is effectively reduced. The design can adapt to various environment changes, the service life of equipment is prolonged, the user interaction experience is improved, and the defects in the prior art are overcome.

The invention discloses a radial forging machine chuck rotation oscillation braking electro-hydraulic control system and method, and the control system comprises a position detection encoder installed on a hammer head of a forging main machine, a hydraulic servo motion controller, a high-frequency servo valve, an oscillation braking oil cylinder with the same area as an A cavity and a B cavity, and an oscillation braking device with a worm gear and a worm. The pressure sensor and the displacement sensor are integrated on the oil cylinder to form a closed-loop control loop; the control method comprises the following steps: activating an oscillation braking function and collecting hammer phase, oil cylinder pressure and displacement signals in real time; a sine control signal synchronous with the forging frequency is generated based on the brake phase of 270-360 degrees; a brake oil cylinder is driven to push the worm to axially move, and the rotating speed of the chuck is modulated through the helix angle characteristic; and the amplitude is dynamically adjusted through a displacement-pressure feedback signal, and 25MPa overrun protection is executed. The purposes of reducing the brake response delay rate, the forge piece distortion rate and the equipment impact load are achieved, and 90-620 times / min wide-frequency-domain forging is supported.

The invention relates to the technical field of packaging film production, and discloses a production process of a three-layer co-extrusion FFS (fringe field switching) heavy coating film, which comprises the following steps: S1, selecting proper raw materials including an outer layer material, an inner layer material and a middle layer material; s2, drying the selected raw materials respectively to ensure that the moisture content is lower than 0.1%; s3, uniformly mixing different materials and additives through premixing equipment; s4, feeding the three materials into co-extrusion equipment, simultaneously extruding melt materials of different layers through a co-extrusion machine, and forming a multi-layer film structure through a die head; and S5, controlling the temperature and the flow speed at the die head to ensure the fluidity and the pressure distribution uniformity of the material melt of each layer. Through a dynamic stretching device, a pressure feedback control system, an optimized die head design and an intelligent control system, uniform film bubble expansion, accurate film thickness control and improvement of film quality stability are realized, the production efficiency and automation are improved, and the consistency and overall performance of film quality are remarkably improved.

The invention relates to a robot system based on multi-mode perception cooperation and an autonomous navigation method, and the robot system comprises a main body frame which is internally integrated with a central processing unit; the multi-mode sensing module comprises a binocular vision camera, a pressure-sensitive touch array, a microphone array and a gas sensor and is used for collecting environmental data; the flexible joint mechanical arm is composed of at least three bionic joints connected in series, and a shape memory alloy driver and an air pressure feedback device are arranged in each joint. The edge computing unit is in communication connection with the central processing unit and used for processing sensing data in real time and generating action instructions, and the core problems that a traditional robot system is insufficient in sensing capacity in a complex environment, mechanical arm rigid-flexible control is unbalanced, and dynamic scene response lags are solved. And a high-adaptability and high-reliability solution is provided for industrial automation, dangerous environment inspection and other scenes.

The invention discloses a pressure feedback type damping self-adjusting energy feedback oil gas suspension and a working method, and belongs to the field of vehicle oil gas suspensions. The pressure feedback type damping self-adjusting energy feedback oil gas suspension comprises a first-stage small-range damping multi-stage adjuster, a second-stage large-range damping multi-stage adjuster and a one-way energy feedback and energy recovery system, an oil outlet of the first-stage small-range damping multi-stage regulator is connected with an oil inlet of the one-way energy feedback and energy recovery system through an oil inlet pipe, an oil outlet of the one-way energy feedback and energy recovery system is connected with an oil inlet of the first-stage small-range damping multi-stage regulator through an oil return pipe, and a throttling valve is arranged on the oil inlet pipe. And pipelines at the two ends of the two-stage large-range damping multi-stage regulator are arranged on the two sides of the throttle valve on the oil inlet pipe in parallel. The working number of damping holes of the suspension system can be changed, self-adaptive adjustment of damping of the suspension system under the condition that the stroke is changed is achieved, power equipment is not needed, and automatic damping adjustment can be achieved through a mechanical structure. And damping vibration attenuation energy consumption recovery is realized.

The invention relates to the technical field of spinning machines, in particular to a spinning machine precision control method suitable for a high-temperature working condition, and the method comprises the following steps: collecting multi-source information; establishing a mapping relation between the thermal error and the temperature field to obtain a thermal error prediction model, training and correcting the thermal error prediction model, and outputting a real-time thermal error prediction value; generating a comprehensive position compensation instruction and performing position compensation; the pressure feedback value collected in real time is compared with a corresponding preset threshold value, if the pressure feedback value collected in real time is larger than or equal to the corresponding preset threshold value, the comprehensive position compensation instruction is converted into a force control instruction, and if the actual axial pressure feedback value or the actual radial pressure feedback value is smaller than the corresponding preset threshold value in the force control process, the comprehensive position compensation instruction is converted into the force control instruction. If yes, returning to the position compensation mode. According to the method provided by the invention, comprehensive compensation and active inhibition of thermally induced errors can be realized, and the forming precision of high-temperature spinning and the surface smoothness of a workpiece are remarkably improved.

The invention relates to the field of machining, and discloses an adjustable wood-working machining multifunctional clamping and positioning method which comprises the following steps: S1, acquiring three-dimensional space position information of a workpiece through laser scanning, and generating point cloud data containing a texture trend; s2, analyzing geometrical characteristics and mechanical characteristics of the workpiece based on the point cloud data, generating a clamping position distribution instruction and matching a clamping mode; s3, a grading pressure threshold value is set according to the wood density grade, and cooperative force application control of multiple clamping arms is dynamically adjusted based on distributed pressure feedback; and S4, fusing the vibration spectrum and the visual displacement data to monitor the position offset of the workpiece in real time. Through a dynamic pressure balancing strategy, according to wood density grading, pressure threshold values are set, gradient pressure control is conducted on hardwood, slope changes are limited, pre-pressing relaxation time is configured for cork wood, multiple clamping arms are adjusted in real time to cooperatively apply force through distributed feedback, and the structural integrity of wood of different densities is guaranteed.

The invention is suitable for the technical field of mechanical equipment monitoring and control, and provides a mechanical state real-time monitoring system based on the Internet of Things, and the system comprises a data obtaining module which is used for obtaining a real-time monitoring result when a target feller performs felling operation on a target tree according to a preset cutting pressure parameter; real-time vibration data, real-time pressure feedback data and real-time temperature change data of the target feller saw blade within a preset time range are collected; according to the invention, multi-dimensional real-time monitoring of the state of the feller saw blade and dynamic adjustment of the cutting parameters are realized through the Internet of Things technology, and the stability and the intelligent level of equipment operation are effectively improved. By integrating three key parameters of vibration, pressure and temperature, the system provides more accurate saw blade aging evaluation, and solves the problem that a traditional single-parameter monitoring method is easily influenced by the environment and is not comprehensive enough.

The invention discloses intelligent bent pipe punch forming equipment and method, and relates to the technical field of pipe fitting punch forming, the intelligent bent pipe punch forming equipment comprises a machine body and a pipe blank, the machine body is provided with a die mechanism, a pushing mechanism and an elbow core rod provided with a first quick release assembly, and the die mechanism comprises an upper die and a lower die which are fixed to the machine body; the upper die and the lower die are respectively provided with forming runners which are matched with each other, and the tube blank is placed in the forming runner of the lower die. By arranging the pressure feedback mechanism and the lubricating oil spraying mechanism, the friction force between the pipe blank and the elbow core rod is converted into the pressure value change in the pressure detection cavity and transmitted to the piezoelectric sensor, the piezoelectric sensor feeds back the pressure value to the control unit, and the control unit can control the rotating speed of the oil pump according to the pressure value. The larger the friction force between the pipe blank and the elbow core rod is, the higher the rotating speed of the oil pump is, the more lubricating oil is sprayed out of the oil spraying holes, the intelligent degree of lubrication is improved, and the stamping effect is guaranteed.

The invention discloses an intelligent cleaning robot dynamic negative pressure dust removal system based on pressure feedback. The intelligent cleaning robot dynamic negative pressure dust removal system comprises a centrifugal fan, a pressure sensor array and a control system. The centrifugal fan adopts a variable frequency speed regulation technology, so that the suction force of 500-3000Pa is dynamically adjustable; an array composed of six sets of miniature pressure sensors is arranged at a dust collection opening, and the airflow pressure difference between the air inlet end and the air outlet end is monitored in real time. The control system is integrated with a blockage self-detection algorithm, when the pressure difference exceeds a preset threshold value 0.5 kPa, a compressed air pulse back flushing program lasting for 0.2 second is triggered, and meanwhile the fan power is adjusted in a self-adaptive mode till blockage is removed. The system solves the problem that the efficiency is suddenly reduced after a traditional dust collector is blocked through a pressure feedback mechanism and an intelligent control strategy, and self-maintenance of the dust collection efficiency is achieved. Experiments show that in dust-intensive scenes such as station waiting halls, the dust removal efficiency is improved by 35% compared with that of a traditional system. The intelligent cleaning robot has the functions of real-time pressure monitoring, dynamic negative pressure adjustment and blockage self-repairing, the working efficiency and reliability of the cleaning robot in the complex environment are remarkably improved, and the intelligent cleaning robot is suitable for being used as intelligent cleaning equipment in families, public places and the industrial field.

The invention provides a building steel structure engineering detection device based on a sensor, and relates to the field of building steel structure engineering detection. The detection device comprises a sectional type bionic mechanical arm which is formed by connecting at least six joint sections capable of being bent independently in series, and a pneumatic driving cavity and a shape memory alloy wire are arranged in each joint section; the self-tightening winding mechanism comprises a pre-tightening belt surrounding the outer wall of the mechanical arm and a pressure feedback unit; the multi-mode detection head is fixed at the tail end of the mechanical arm and is integrated with an eddy current sensor, an ultrasonic phased array probe and a high-resolution industrial camera; and the central control module is in signal connection with the mechanical arm and the multi-mode detection head, dynamically plans a winding path of the mechanical arm according to laser ranging data of the laser ranging module, and selectively starts the eddy current sensor or the industrial camera to perform cooperative detection based on an initial scanning result of the ultrasonic phased array probe. And the effects of self-adaption to complex morphology, synchronous completion of multi-type defect detection and environmental interference resistance are achieved.

The invention discloses a phased array ultrasonic detection rough surface coupling agent dynamic supplementing and sealing system which comprises a flexible sealing structure, a coupling agent supply unit, a pressure feedback control unit and a self-adaptive attaching structure. A flexible sealing structure is adopted to form a continuous liquid coupling film between the probe and the detected joint, and the coupling agent supply unit actively supplies liquid to keep the thickness of the liquid coupling film stable in a range of 0.5-1.5 mm so as to reduce ultrasonic energy loss and a blind area; in addition, the coupling agent liquid can be controlled not to leak or the leakage can be controlled within an acceptable range through the sealing mechanism, and the coupling agent supply unit is matched to continuously and stably supply the liquid, so that the coupling layer is ensured to be uninterrupted in the scanning process.

The invention relates to the technical field of loader brake valves, and discloses a hydraulic brake valve and a hydraulic system thereof.The hydraulic brake valve comprises the hydraulic brake valve, the hydraulic brake valve is composed of a one-way valve, a brake valve set, a brake lamp pressure switch, a low-pressure alarm pressure switch, a shuttle valve, a high-low pressure unloading valve and a throttling hole, and the high-low pressure unloading valve and the throttling hole are integrated; a P port, an A port, a B port, a T port, an LS1 port, an LS port, a low-pressure alarm pressure switch and a brake lamp pressure switch are arranged outside the hydraulic brake valve. A liquid filling valve is omitted, an oil source of the full-hydraulic power braking system is taken from an existing priority valve CF port of equipment, pressure feedback signals are selected through a shuttle valve on a hydraulic braking valve, the pressure feedback signals are transmitted to the priority valve, and liquid filling and energy supplementing of the full-hydraulic power braking system or steering work of a steering system is achieved. The brake has the remarkable advantages of being fast in brake response, low in noise, low in failure rate, high in safety coefficient, compact in structure, low in cost and low in energy consumption.

The invention relates to the field of high-frequency communication comprehensive detection of a pressure feedback type composite actuator, in particular to a high-frequency communication control detection method for the pressure feedback type composite actuator, which comprises the following steps: acquiring high-frequency communication control real-time data of the pressure feedback type composite actuator; establishing a signal flow dynamic database of the pressure feedback type composite actuator by using the high-frequency communication control real-time data; according to the signal flow dynamic database, multi-stage screening analysis processing is carried out to obtain a high-frequency communication control detection result of the pressure feedback type composite actuator, when any comparison abnormity exists, alarm processing is carried out, meanwhile, the abnormity is rechecked subsequently, and effective safety guarantee is made for the process safety of the stamping process.

The invention relates to the technical field of intelligent manufacturing, in particular to an extrusion processing workshop intelligent operation and maintenance method and system based on digital twinning, and the method comprises the following steps: importing a production plan through a digital twinning system, generating a processing task list, and synchronizing a virtual model; the specification of the billet is obtained by using RFID, and a tracking code is generated and a task is bound. And matching process parameters, regulating and controlling the temperature of the heating machine, collecting temperature data and generating a compensation instruction. Based on the compensation instruction, planning a manipulator path, monitoring a pose correction deviation, and feeding the billet into an extruder; calling a pressure curve, collecting a pressure value, and generating an adjusting instruction by combining material simulation to realize constant strain rate extrusion; according to the pressure feedback, the wire collecting tension is adjusted, the wire diameter fluctuation is monitored, and a speed compensation instruction is generated; generating a wire unloading path according to the specification of the wire coil, and controlling the robot to place the wire coil and update a task state; according to the invention, efficient, accurate and intelligent extrusion processing operation and maintenance are realized.

The invention discloses a pressing device for rubber product processing, and relates to the technical field of press machines for rubber processing, the pressing device comprises a press machine rack, a press roller driving mechanism, a pressure adjusting piston, a main press roller, an auxiliary press roller, a pressure feedback piece, a magnetic compensation piece and a rubber contour prediction piece, the press machine rack is internally provided with a pressing chamber; a main compression roller and an auxiliary compression roller are installed through a supporting seat and driven by a compression roller driving mechanism to rotate, a pressure adjusting piston adjusts the overall pressure of the main compression roller, a pressure feedback piece on the main compression roller can dynamically detect the pressing pressure and generate a magnetic field, and a magnetic compensation piece of the auxiliary compression roller is matched with the magnetic field to achieve local pressure compensation. Compared with an existing press machine, the press machine has the advantages that the press fit quality and stability of rubber products can be improved through pretreatment detection, gradient pressure compensation and multi-parameter cooperative control, and the production efficiency is improved. And the universality and adaptability of equipment are enhanced.

The invention discloses an intelligent rehabilitation bed body dynamic supporting system based on pressure feedback, and relates to the technical field of intelligent rehabilitation bed body dynamic supporting, and the intelligent rehabilitation bed body dynamic supporting system comprises a sensing acquisition module, a data fusion module, an individual modeling module, a strategy generation module, an execution driving module, a state feedback module and a remote interaction module; the sensing and collecting module is used for collecting pressure, temperature, humidity and heat distribution information of a contact area of a bedridden patient and a bed body in real time in a distributed multi-mode sensing mode and outputting original sensing signals. The data fusion module is used for performing multi-source data fusion processing on the original sensing signals from the sensing acquisition module by adopting a Kalman filtering algorithm, extracting comprehensive health indexes reflecting the microcirculation state of local tissues, and outputting fused physiological evaluation data; and the individual modeling module is used for training the body type, the weight, the medical history information and the historical pressure distribution data of the patient by adopting a machine learning model.

The invention belongs to the field of medical equipment, and particularly relates to a lower limb intelligent feedback training system and method with balance training, and the method comprises the steps that a pressure feedback system monitors the pressure applied by a left foot and a right foot to corresponding pedals in the stepping training process of a patient, and sends the obtained pressure value to an electric control system; the execution mechanism realizes height lifting, lying standing, foot plate stretching and backrest posture adjustment of the bed body according to a control instruction of the electric control system, and meanwhile, controls left and right pedal plates to execute reciprocating motion; the electric control system receives training control parameters issued by the upper computer and controls the execution mechanism to execute corresponding motion; the running state of the training motor, the running state of each push rod, the training coordination of the left leg and the right leg and the collected pressure value are sent to an upper computer in real time; and meanwhile, the information is displayed on the man-machine interaction system. By detecting the plantar pressure in the walking process of the two feet, balance analysis is carried out when the left foot and the right foot walk, and abnormal gaits are prevented from being generated after walking is recovered.

The invention discloses a servo pressure control method and device, equipment and a storage medium. The method comprises the steps that a pressure part is controlled to move from an initial first preset position to a second preset position; collecting a pressure feedback value of the pressure sensor; after the pressure component reaches the second preset position, inputting a preset pressure value and a pressure feedback value to the closed-loop controller to obtain a target position, and controlling the pressure component to move towards the target position; and when the pressure component moves and the pressure feedback value is detected to be equal to the preset pressure value, the pressure component is controlled to stop pressurizing. According to the method, position control is adopted in the pressing stage, the speed mode does not need to be switched, the closed-loop controller is connected after the second preset position is reached in the pressing stage, and the pressing process is smoother. A closed-loop controller based on an admittance model is adopted, the closed-loop controller outputs a target position, and the precision of controlling the pressure by controlling the target position is far higher than the precision of controlling the pressure through given speed.

The invention discloses an anti-interference system for a slip ring communication technology, and belongs to the technical field of communication. Aiming at the problems of electromagnetic interference, mechanical vibration and unstable contact of monocrystalline silicon furnace equipment, a collaborative solution is provided. The system comprises a conductive slip ring assembly, a dynamic shielding module, an asymmetric differential transmission module, an intelligent filtering module, an environment sensing module and a contact impedance compensation module, and real-time cooperative control is realized through a bus controller. The dynamic shielding module adopts a liquid metal micro-channel layer and a piezoelectric driving layer, the shielding density is dynamically reconstructed according to the electromagnetic interference frequency band and the vibration intensity, and broadband noise is suppressed; the asymmetric differential transmission eliminates common-mode interference through dynamic phase compensation; the intelligent filtering module adaptively adjusts parameters of a band elimination filter based on a deep learning model, and accurately suppresses time-varying interference; the carbon nanotube composite electric brush stabilizes contact impedance through a pressure feedback mechanism. The system is obviously superior to a traditional static shielding and fixed filtering scheme, and reliable communication requirements are guaranteed.

The invention relates to the technical field of photovoltaic module manufacturing, in particular to a photovoltaic module vacuum laminating system based on dynamic pressure feedback. The dynamic pressure adjusting module comprises a piezoelectric film sensor and a servo motor, the piezoelectric film sensor is used for detecting the pressure borne by the photovoltaic module, and the control module calculates and obtains the real-time optimal pressure and then controls the servo motor to act so as to achieve the real-time optimal pressure; the heating control module comprises a heating plate, a thermal infrared imager and a PID temperature control unit, the heating plate is used for heating the photovoltaic module, the thermal infrared imager is used for detecting the surface temperature distribution of the photovoltaic module, and the PID temperature control unit is used for controlling the temperature of the heating plate; the vacuum control module comprises a plurality of air chambers which are independently arranged, each air chamber is provided with an air inlet pipeline and an air outlet pipeline which are communicated with the laminating machine cavity, and micro electromagnetic valves are arranged on the air inlet pipelines and the air outlet pipelines.

The invention belongs to the technical field of machine room inspection, and particularly discloses a communication machine room inspection device and method based on computer vision, and the device comprises an inspection vehicle, a buffer seat, a loading seat, a camera, an execution mechanism and an image processing system, the buffering seat is provided with mechanical anti-shake structures such as a sliding groove, a sliding block, a movable frame and a spring damper, and the influence of vehicle body vibration on image acquisition stability can be effectively reduced. The device further comprises functional components such as a laser distance sensor and a mechanical arm. The method comprises the steps of image acquisition, image comparison, abnormity identification, operation execution, pressure feedback control and the like, and can realize automatic abnormity identification, target positioning, intervention execution and alarm and report generation. The intelligent, automatic and anti-interference capabilities of communication machine room inspection are improved, and the system is suitable for high-frequency, large-scale and multi-type equipment inspection scenes.

The invention relates to a compensation method of a spring compression type grinding sleeve wear compensation device based on an Archard model. The spring compression type grinding sleeve wear compensation device based on the Archard model comprises a grinding shaft, a grinding sleeve, a spring compression assembly, a parameter acquisition module, a compensation execution mechanism and a control module. According to the solution integrating abrasion prediction, real-time monitoring and dynamic compensation, accurate compensation of abrasion of the grinding sleeve is achieved by constructing the abrasion prediction model fusing the compression characteristics of the spring and combining a pressure feedback adjusting mechanism, and the stability and consistency of the machining process are guaranteed.

A cook machine with good stability relates to the technical field of cook machines and comprises an air pump, a shell, a base, a motor, a stirring mechanism and a control system. The base is provided with a supporting sleeve, and a vacuum sucker is arranged in the supporting sleeve and connected with an air pump through an exhaust pipeline. The control system controls the clutch to be connected and disconnected according to the feedback of the pressure sensor: the clutch is closed at the starting stage, and the air pump is driven to vacuumize by utilizing the low-rotating-speed surplus power of the motor, so that the suction cup adsorbs the table top; when the negative pressure reaches a threshold value, the clutch is disconnected, and the motor focuses on driving stirring. After shutdown, the electric control valve is opened to release pressure, and equipment is convenient to move. The design integrates power of the air pump and the motor, an independent air pump motor is omitted, cost and energy consumption are reduced, and the structure is more compact. And through dynamic pressure feedback control, the balance between adsorption stability and energy consumption optimization is realized, the problem of shaking of a traditional chef machine caused by vacuum leakage is effectively solved, and the operation reliability is improved.

The invention relates to the technical field of roll grinders, and discloses a grinding control method and system for a roll grinder, and the method comprises the steps: deploying a pressure sensor, collecting pressure data and position coordinates, and building an initial data set. Abnormal data are identified and removed by detecting a time-pressure curve, missing values are complemented by utilizing curve fitting, and a corrected data set is formed. Workpiece boundaries are recognized based on pressure distribution, and after effective data are screened, a weighted average pressure value is calculated in the vertical direction of the grinding wheel. And dynamically adjusting the normal force of the grinding wheel by adopting a proportional control algorithm to enable the pressure to approach a target value. Abnormal data can be monitored, equipment health state evaluation is supported, the workpiece surface burning risk is reduced through pressure feedback compensation, and the size precision is improved.

The invention discloses a carbon sequestration CO2 multi-layer injection and production collaborative balance system and method.The carbon sequestration CO2 multi-layer injection and production collaborative balance system comprises a multi-layer injection mechanism, a collaborative extraction mechanism and a regulation and control mechanism, the multi-layer injection mechanism comprises an injection well, an injection allocation device and a two-way packer, the injection well vertically penetrates through 2-4 target reservoirs, and the injection allocation device vertically penetrates through the two-way packer; each target reservoir in the injection well is correspondingly provided with an injection allocation device and a two-way packer, each injection allocation device comprises a pressure sensor, a flow controller and a communication module, the collaborative extraction mechanism comprises a plurality of water production wells, the water production wells are arranged on the periphery of the injection well, and the two-way packers are arranged on the periphery of the injection well. Each water production well corresponds to one target reservoir, an adjustable water pumping screen pipe, a pressure feedback valve and a flow metering device are correspondingly arranged in each water production well, the regulation and control mechanism comprises a controller and an optical fiber monitoring device, and the controller is electrically connected with the optical fiber monitoring device, the pressure sensor, the flow metering device and the pressure feedback valve. The carbon sequestration CO2 multi-layer injection-production collaborative balance system provided by the invention has the advantages of high safety and high efficiency.

The invention discloses a self-adaptive apple maturity lossless picking flexible claw and a picking method. The device comprises a base assembly, and a visual recognition module, a flexible clamping jaw assembly, a distributed pressure sensing module, a transmission execution module and a control unit are integrated on the base assembly. And the visual module adopts a depth camera and a YOLO11n model, judges the maturity grade in real time based on the apple red area proportion and is matched with the corresponding grabbing threshold force. The pressure sensing module is a thin film pressure sensor, and multi-point pressure feedback is achieved through a plurality of pressure detection points. The transmission module adopts a single motor to drive a lead screw nut lifting table, opening and closing of clamping jaws are synchronously controlled, the structure is light and simple, and cost is low. The picking method follows the process of recognition, matching, force control and picking, a cutter is not needed, lossless and high-success-rate self-adaptive picking is achieved, the problem of damage or failure caused by traditional fixed force control is effectively solved, the method is suitable for dense orchards, and the intelligent and lossless levels of apple picking are improved. The control unit is low in response delay and small in overshoot, and it is ensured that the grabbing force is accurately matched with the fruit state.