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30results about How to "Optimal control method" patented technology

Method for detecting hydrazine content in carbidopa-containing medicine

The invention discloses a method for detecting the hydrazine content in a medicine containing carbidopa. The invention provides a method for detecting hydrazine content in a medicine containing carbidopa, which comprises the following steps: (1) mixing a sample to be detected and an aldehyde substance in a solvent under the action of acid, deriving hydrazine in the sample to be detected and the aldehyde substance to obtain a test solution, and (2) detecting the content of hydrazine in the test solution. Compared with the prior art, the method has the advantages that the carbidopa does not need to be removed through pretreatment, hydrazine introduced in the determination process can be ignored, operation is simple, derivatization time and sample injection time do not need to be accurately controlled, repeatability is good, and quantification is accurate.
Owner:SHANGHAI WD PHARM CO LTD

Defense method for zero dynamic attack of wind power generation system

The invention belongs to the field of network security, and discloses a defense method for zero dynamic attacks of a wind power generation system, which comprises the following steps: constructing a mathematical model of the wind power generation system; a gain scheduling PI controller and electronic adjustable passive elements are introduced into the wind power generation system, and the electronic adjustable passive elements are a controllable inductance module and a controllable capacitance module and are used for adjusting inductance and capacitance of the system; designing a zero-dynamic attack signal, injecting the zero-dynamic attack signal into the system, and analyzing destructive factors of the zero-dynamic attack; defending the designed zero-dynamic attack signal, dynamically adjusting and optimizing the parameter value of the element adjustment coefficient so as to adjust the inductance and capacitance, converting an unstable zero point into a stable zero point, weakening the destructiveness of the zero-dynamic attack, and realizing defending. According to the method, the system can keep stable operation in a complex environment, the dependence limitation in the prior art is overcome, and the defense robustness is enhanced.
Owner:JIANGSU OCEAN UNIV

Real-time prediction and control method and system for deformation state of superplastic forming part based on digital twinning

The invention discloses a real-time prediction and control method and system for the deformation state of a superplastic forming part based on digital twinning, and belongs to the technical field of intelligent manufacturing. The method aims at solving the technical problems that in the superplastic forming process, the deformation state of a part is invisible, control depends on experience, and quality is unstable due to open-loop control. The core lies in that a multi-task learning artificial intelligence prediction model taking air inflow time sequence data as input and taking pressure in a mold cavity and a part full-field deformation state as output is constructed by fusing parameterized finite element simulation and physical experiment data in an offline stage; in the online stage, the model is utilized to dynamically predict deformation states such as a strain field and a thickness field in the part according to air inflow data collected in real time, and process transparency is achieved; and a model prediction control algorithm is further combined, a prediction state is compared with an ideal path, the air inlet pressure is reversely optimized and adjusted in real time, and a closed-loop intelligent control system is formed. According to the method, perspective and active accurate control of the internal state in the black box forming process are achieved, and the quality consistency and the yield of parts can be improved.
Owner:BEIJING NAT INNOVATION INST OF LIGHTWEIGHT LTD

Flexible circuit board assembling method and system based on multi-camera visual field visual servo

The invention provides a flexible circuit board assembly method and system based on multi-camera visual field visual servo, and the method comprises the steps: positioning a flexible circuit board through a first camera, obtaining a first outer contour feature of a backboard, and grabbing the backboard according to the first outer contour feature; and positioning the flexible circuit board through the second camera to obtain a second outer contour feature of the backboard and a circuit feature of the interface, and mapping the position of the circuit feature to a visual angle of the first camera according to a corresponding relation between the first outer contour feature and the second outer contour feature and a position relation between the second outer contour feature and the circuit feature. A visual identification characteristic value is obtained; and filtering the visual identification characteristic value by combining particle filtering and Kalman filtering, and assembling the flexible circuit board by combining the filtered characteristic value. According to the invention, the visual servo technology under the multi-camera visual field is used to accurately identify the flexible circuit board, and the problem that the camera cannot directly obtain the characteristics of the circuit board due to the fact that the visual field is shielded in the assembly process is solved.
Owner:SHANGHAI FLEXIV ROBOTICS TECH CO LTD

A hydraulic gate drive for a surge basin

The utility model discloses a liquid drive gate drive arrangement for regulating and storing pool, including hydraulic oil cylinder support, hydraulic oil cylinder and crossbeam support, the lower extreme of hydraulic oil cylinder support is connected with the pool wall of regulating and storing pool fixed, the fixed end of hydraulic oil cylinder is connected with the upper end of hydraulic oil cylinder support, and the movable end of hydraulic oil cylinder is connected with the upper end of crossbeam support, the lower extreme of crossbeam support is connected with liquid drive gate through a plurality of adjusting bolt. The utility model reduces equipment failure rate, fundamentally solves the problem that the gate cannot normally open and close after the push rod of two side hydraulic cylinders is out of step, and guarantees normal production operation.
Owner:TAOPU SEWAGE TRAEATMENT PLANT OF SHANGHAI CHENGTOU SEWAGE TREATMENT

A steel slag permeable concrete road slab preparation device, method and road slab

The invention discloses a steel slag permeable concrete road slab preparation device, method and road slab thereof, and relates to the technical field of concrete preparation, comprising a base, a mounting frame is fixedly installed on the top of the base, a hydraulic telescopic rod is equidistantly fixedly installed on the bottom of the top of the mounting frame, the bottom ends of the hydraulic telescopic rods are fixedly connected with shaping pressing plates, and a flipping and unloading mechanism is arranged in the middle of the top of the base. The invention utilizes a rotating motor to drive the rotating rod to rotate continuously, so that the incomplete gear and the rotating gear are intermittently meshed, and the rotating mold is driven to flip on the supporting frame, so that the concrete slab formed inside the rotating mold can be easily unloaded, and the unloading method is simple, which provides great convenience for the staff to take out the formed concrete slab, and the positioning block at one end of the rotating gear is limited by the embedded block, so that the rotating gear and the rotating mold are kept stable during pressurization and shaping, and the shaking and deflection of the rotating mold are prevented, which causes the concrete to be unable to be normally pressurized and shaped.
Owner:CANGZHOU BOHAI NEW DISTRICT MUNICIPAL CONCRETE CO LTD

Parallel RCM mechanism end effector for orthopedic surgery

The application discloses a parallel RCM mechanism end effector for orthopedic surgery, which comprises two motors, three movement units, a double parallelogram linkage mechanism and a ball mill. The two motor axes are perpendicular and are installed on a base. The motor A is hingedly connected to the bottom end of the first movement unit; the motor B is hingedly connected to the bottom end of the second movement unit; the third movement unit is symmetrically arranged with the second movement unit and is hingedly connected to the base at the bottom end. The upper rod end of the double parallelogram linkage mechanism is hingedly connected to the top end of the second and third movement units through a rotating shaft; the lower rod end is hingedly connected to the three movement units through a rotating shaft. The upper rod and the lower rod are rotationally connected to the ball mill at the front ends. The double parallelogram linkage mechanism is used to make the center of the ball mill head coincide with the fixed point of the RCM mechanism, and the mechanism characteristic of the fixed point of the RCM mechanism is utilized. The fixed point is made to coincide with the ball center of the ball mill head, so that the position of the ball mill head is unchanged when the posture of the ball mill is changed, the posture of the ball mill does not affect the grinding process in the grinding process, the posture of the ball mill can be adjusted, the obstacle avoidance can be better realized, and the safety is improved.
Owner:BEIHANG UNIV

A semi-active suspension control method, device and equipment

PendingCN122830307AOptimal control methodImprove driving smoothness
The application relates to the technical field of intelligent vehicle control, and discloses a semi-active suspension control method, device and equipment, the method comprising the following steps: acquiring current state information of a vehicle suspension system, including sprung mass displacement, sprung mass speed, tire displacement, tire speed and current road excitation; based on a historical road excitation buffer queue, generating a road excitation prediction result in parallel through a first prediction channel and a second prediction channel, and performing weighted fusion on the road excitation prediction result to obtain a fused road excitation prediction sequence; based on the current state information and the fused road excitation prediction sequence, solving a quadratic programming optimization problem through model predictive control to obtain an optimal damping coefficient sequence. The application can improve the road excitation prediction accuracy under complex road conditions, enhance the numerical stability of QP solving, realize intelligent damping adjustment, and thus improve the driving smoothness and control stability of the vehicle.
Owner:ANHUI KAIYANG TECHNOLOGY CO LTD +1

Decontamination device for a vehicle door handle and vehicle

This utility model provides a cleaning device for car door handles and a vehicle, relating to the field of vehicle cleaning technology. The cleaning device for car door handles includes: at least one nozzle structure, at least one delivery channel, and a medium pressurizing structure. The medium pressurizing structure pressurizes the cleaning medium and inputs the pressurized cleaning medium into the delivery channel. The first end of the gradually expanding cavity of the nozzle structure is connected to the delivery channel, which inputs the cleaning medium into the gradually expanding cavity through the first end. The second end of the gradually expanding cavity is the outlet end of the cleaning medium, and the diameter of the first end of the gradually expanding cavity is smaller than the diameter of the second end. The extension line of the direction in which the cleaning medium is ejected from the outlet end is parallel or nearly parallel to the outer surface of the car door handle. The cleaning medium ejected through the outlet end is a planar fluid that cleans the outer surface of the car door handle. This solution improves the cleaning efficiency of the outer surface of the car door handle, and the control and cleaning methods are simple and easy to operate.
Owner:BEIJING SILLFILL TECHNOLOGY CO LTD

A double-station hose filling and sealing machine and a sealing method

The present invention discloses a double-station hose filling and sealing machine and a sealing method, comprising a core disk capable of rotating movement and a lifting cage capable of lifting movement, wherein the lifting cage is suspended above the core disk; the core disk is provided with n pairs of bearing positions for bearing hoses, and the outer periphery of the lifting cage is provided with n pairs of action mechanisms, and each pair of the action mechanisms is a group of stations; when the core disk rotates, the hoses on the bearing positions are sequentially placed under the n pairs of the action mechanisms, and the lifting cage drives the action mechanisms to perform lifting movement, so that the action mechanisms process the hoses. The overall structural components of the present invention adopt upper cage suspension, and the design concept is novel. The entire equipment table has no messy working parts and no sanitary dead corners, and is easy to clean, meets GMP standards, has few parts, simple and intuitive structure, and stable machine operation, which saves manufacturing costs and machine space.
Owner:WUXI JINGPAI MASCH CO LTD

Integrated control type semi-closed screw compressor unit and control method thereof

The invention discloses an integrated control type semi-closed screw compressor unit and a control method thereof, and belongs to the technical field of compressor units, the integrated control type semi-closed screw compressor unit comprises a compressor body, a motor and a control device, the control device comprises a CPU and a PLC, the CPU and the PLC are both used for controlling the screw compressor unit, and the motor is used for controlling the screw compressor unit. The control device of the screw compressor unit is integrated on the compressor body, a connecting assembly in an original screw compressor unit is omitted, the control mode is optimized, a compressor body energy adjusting mechanism is omitted, a compressor and an oil pump are integrated with a motor, the overall size and fault points of the screw compressor and the unit are reduced, and the service life of the screw compressor is prolonged. And meanwhile, the assembling and installing steps of the compressor body and the screw compressor unit are greatly simplified, installing and debugging are more convenient, operation is more energy-saving, and safety and reliability are achieved.
Owner:MOON ENVIRONMENT TECH CO LTD +2

A method for improving the quality control of the core of hot-rolled round steel for mine wear-resistant balls

PendingCN122727474AOptimal control methodReduce Fragmentation Rate
The application discloses a kind of mine wear-resistant ball hot-rolled round steel core quality improvement control method in the field of metallurgical refining, method includes: obtaining alloyed molten steel;The alloyed molten steel and pre-prepared aluminum wire, high-purity silicon carbide and lime are input into LF refining furnace, and the unit cycle of LF refining furnace refining is controlled to obtain refined molten steel;The refined molten steel is input into vacuum degassing furnace for vacuum treatment, and the vacuum treated molten steel is obtained;The vacuum treated molten steel is cast to obtain a rectangular blank;Control heating furnace adopts segmented heating rule to heat the rectangular blank, and the rectangular blank is packed into pit after rough rolling, finishing rolling and cold bed heat preservation treatment, and the finished round steel is obtained.The application can alleviate the technical problems that mine wear-resistant ball is often affected by inclusions, heating temperature and heating time during actual production, resulting in cracked ball or even broken ball, thereby affecting service life.
Owner:NANJING IRON&STEEL CO LTD

Decontamination device for a vehicle quarter window and vehicle

ActiveCN224589106UIncrease decontamination areaOptimal control method
The utility model provides a kind of decontamination device and vehicle of vehicle quarter window, it is related to vehicle decontamination technical field, and the decontamination device of vehicle quarter window includes: at least one nozzle structure and at least one delivery channel;Nozzle structure includes gradually expanding cavity, the first end of gradually expanding cavity is communicated with delivery channel, delivery channel is used to input cleaning medium into gradually expanding cavity by the first end of gradually expanding cavity, the second end of gradually expanding cavity is the ejection end of cleaning medium, the caliber of first end is less than the caliber of second end;Ejection end is set to the edge of vehicle quarter window;The extension line of the direction that ejection end sprays cleaning medium is parallel or close to parallel with the surface of vehicle quarter window, and surface cleaning medium is sprayed via ejection end, to carry out decontamination to the outer surface of vehicle quarter window.The control mode and decontamination mode of the utility model are simple, easy to operate, and can improve the decontamination efficiency of the outer surface of vehicle quarter window.
Owner:BEIJING SILLFILL TECHNOLOGY CO LTD

Device and method for testing transient longitudinal aerodynamic characteristics of fixed-wing unmanned aerial vehicle

The invention belongs to the field of unmanned aerial vehicle aerodynamics, and particularly relates to a device and a method for testing transient longitudinal aerodynamic characteristics of a fixed-wing unmanned aerial vehicle. According to the scheme, the electric cylinder is used as an actuator, and the pitching angle of the unmanned aerial vehicle can be dynamically adjusted by controlling the elongation change of the electric cylinder. The supporting legs, the bottom frame, the front vertical frame and the rear vertical frame which are used by the device can be built by adopting profiles, and the device is simple in structure, low in cost and convenient to assemble.
Owner:MILITARY INTELLIGENCE RES INST OF THE CHINESE PEOPLES LIBERATION ARMY ACAD OF MILITARY SCI

A wheelchair control method based on electrical impedance technology combined with tactile perception

The present invention discloses a wheelchair control method based on electrical impedance technology combined with tactile perception, and the steps include: 1. N electrodes are evenly attached to the boundaries of flexible piezoresistive materials; 2. The acquisition device acquires voltage signals and transmits them to the host computer, and uses the TK-NOSER imaging method to perform two-dimensional imaging of the impedance distribution changes in the flexible piezoresistive material, and further calculates the coordinates of the touch position after threshold segmentation; 3. Six areas are divided on the flexible piezoresistive material for defining command operations; the area where the coordinates of the touch position fall is determined, thereby determining the wheelchair command; 4. The host computer sends the wheelchair command to the wheelchair controller to drive the wheelchair to perform the corresponding action. The present invention can quickly detect the signals corresponding to different touch commands and quickly control the wheelchair, thereby solving the problems of cumbersome wheelchair control operation, low sensitivity, difficult control, and high cost in the prior art.
Owner:HEFEI INST OF TECH INNOVATION ENG CHINESE ACAD OF SCI

Device for coronary artery stent shaping

PendingCN121818187AGuaranteed no expansionNo deformationStentsCoronary arteriesStent implantation
The invention provides a coronary stent shaping device which is of a hollow tubular structure, a U-shaped or nearly U-shaped notch is formed in one end of a tube, the inner diameter of the hollow tubular structure is equal to 1.05-1.25 times of the outer diameter of an unexpanded coronary stent, the length of the hollow tubular structure is larger than that of the unexpanded coronary stent, and the length of the hollow tubular structure is larger than that of the unexpanded coronary stent. The width of the notch is smaller than or equal to the outer diameter of the unexpanded stent and larger than or equal to the width of the single mesh. According to the stent shaping device, the risks of stent deformation and damage can be remarkably reduced, the risk of stent deloading is reduced, and the success rate of stent implantation operation is increased.
Owner:HEBEI YILING MEDICINE INST

1ml pipettor and control method thereof

The invention relates to a 1ml pipettor and a control method thereof. The 1ml pipettor comprises a TIP head, a driving control panel, a main pump body, an air pressure sensor, a TIP adapter for loading the TIP head, a plunger unit slidably arranged in the main pump body, and a driving mechanism for driving the plunger unit to move relative to the main pump body, the TIP adapter is provided with a TIP head detection mechanism used for detecting whether the TIP adapter is loaded with a TIP head; the TIP head detection mechanism comprises a follower, a TIP detection optocoupler, a reset elastic piece used for providing reset elastic force for the follower, and a sleeving piece which is arranged on the periphery of a loading head of the TIP adapter in a sleeving mode and can move relative to the loading head. After the TIP head is loaded, whether the TIP head is loaded or not can be detected at the same time, use is more convenient, liquid suction and drainage are better conducted through the whole control method, and convenience is brought to use.
Owner:DONGGUAN JURUI ELECTRIC TECH CO LTD

Rapid positioning and clamping device for gear ring shell

The utility model discloses a gear ring shell quick positioning and clamping device which comprises a machine body, a clamping assembly is arranged in the machine body, the clamping assembly comprises an upper cross beam extending front and back and a lower cross beam extending left and right, first dovetail guide grooves are symmetrically formed in the top end face of the upper cross beam front and back, and second dovetail guide grooves are symmetrically formed in the top end face of the lower cross beam left and right. First dovetail guide grooves are formed in the lower cross beam, first dovetail sliding blocks are connected into the first dovetail guide grooves in a sliding fit mode, first screw rods are connected into the first dovetail sliding blocks in a threaded fit mode, a first motor is fixedly arranged between the first dovetail guide grooves in the front side and the rear side, the first motor is connected with the first screw rods in a power fit mode, and a worm wheel is further fixedly arranged in the middle of the top of the lower cross beam. The worm gear is mounted in the embedded groove and is in meshed connection with the worm, and the top end of the worm gear is in running fit connection with the top wall of the embedded groove; according to the device, gear ring shells of different models can be clamped and fixed, manual debugging is not needed, the control mode is simple and convenient, and operation is easy.
Owner:XIANYANG SHENGYI MASCH MFG CO LTD

Processing control system and method for laser engraving machine

The invention discloses a machining control system and method for a laser engraving machine, and belongs to the technical field of machining control of the laser engraving machine. The method comprises the steps that the engraving scene requirement of a user and corresponding laser engraving machine information are obtained, and corresponding engraving types are determined according to the obtained engraving scene requirement and the obtained laser engraving machine information; setting a corresponding background pre-model according to the obtained carving scene requirement; obtaining a customer photo, evaluating each engraving task, judging whether the engraving task meets the engraving requirement or not, marking the engraving task meeting the engraving requirement as a target task, and otherwise, displaying an evaluation result that engraving cannot be performed to the corresponding customer; and generating a laser engraving task model corresponding to the target task, displaying the task time and the laser engraving task model corresponding to the target task to the user and the client, and after the user and the client determine the target task, performing laser engraving according to the laser engraving task model to obtain a corresponding engraving model.
Owner:JIANGSU DINGXIANGZHI INTELLIGENT EQUIP TECH CO LTD

Device and method for testing transient composite working condition aerodynamic characteristics of fixed-wing unmanned aerial vehicle

The invention relates to the technical field of aerodynamics of unmanned aerial vehicles, in particular to a device and a method for testing transient composite working condition aerodynamic characteristics of a fixed-wing unmanned aerial vehicle. According to the device, the four electric cylinders are used as the actuators, the pitching angle and the rolling angle of the unmanned aerial vehicle can be dynamically adjusted by controlling the elongation change of the four electric cylinders, and the defect that an existing fixed-wing unmanned aerial vehicle aerodynamic characteristic testing device can only conduct static pure working condition testing is overcome. The bottom frame, the front vertical frame and the rear vertical frame can be built through sectional materials, the structure is simple, cost is low, assembling is convenient, an electric cylinder is used as an actuator, the control method is simple and convenient, and control precision is high.
Owner:MILITARY INTELLIGENCE RES INST OF THE CHINESE PEOPLES LIBERATION ARMY ACAD OF MILITARY SCI

A stamping line grating safety reset method, system and device based on sequential button confirmation

ActiveCN121696283BOptimal design methodOptimal control methodIntrinsic safetyGrating
The present application belongs to the technical field of safety control of stamping equipment, and particularly relates to a stamping line grating safety reset method, system and equipment based on sequential button confirmation, which detects automatic die changing conditions first; after the conditions are met, an operator presses a first reset button to activate all gratings and start flashing and timing; after pressing the last intermediate confirmation button, the exit grating will enter a controlled short disabled state, and the operator needs to leave during this period and press the exit reset button to reactivate the grating; then the subsequent confirmation button operation is continued until the final reset button is pressed on the master console to complete the one-sided reset. The method ensures that the operator completes safety inspection of each area along the predetermined route during the reset process through sequential operation, definition of time points and path constraints, effectively preventing skipping, missing or staying. The method improves the intrinsic safety of the reset operation of the stamping line under the working conditions such as automatic die changing.
Owner:JIER MACHINE TOOL GROUP

Electric appliance switch

The utility model relates to an electric appliance switch used for on-off control of a household appliance, the household appliance comprises a cover body and a body, the electric appliance switch comprises a working circuit, a load circuit, a first coil, a second coil and an electromagnetic switch, the working circuit is connected with a power supply, the first coil is connected with the working circuit, the second coil is connected with the load circuit, and the electromagnetic switch is connected with the cover body. The electromagnetic switch is connected in series with a load circuit, the first coil is fixed on the cover body, and the second coil is fixed on the body. Compared with the prior art, the switch has the advantages of simple switch control structure, convenience in operation, low cost and the like.
Owner:SHANGHAI DEMAN ELECTRONICS TECH

Rotatable automobile sheet metal repair bench

ActiveCN224601600UImprove the defect of being unable to moveAvoid frequent handling
The utility model provides a rotatable automobile sheet metal maintenance platform belongs to automobile sheet metal technical field, including rotating component, including base, fixedly connected in the base center's bottom pivot, the platform pivot of rotation connection in the bottom pivot top, fixedly connected in the platform pivot lateral wall's platform and fixedly connected in the platform top's support column. The utility model discloses through the setting of clamping pivot, vertical rod and clamping block, need not frequently change fixture, can adapt to multiple vehicle type maintenance demand, greatly reduce the time and cost of model change adjustment, utilize clamping pivot, bottom pivot and platform pivot to solve the problem of fixed clamping angle when large -area repair, can flexible adjustment clamping angle, easily cope with complex deformation part's repair, improved the defect that traditional maintenance platform cannot move, can be moved to the suitable operation position flexibly, avoid the repair process frequently carries the work piece, improved overall work efficiency.
Owner:SHENZHEN JIUYIXING NEW ENERGY VEHICLE TECH CO LTD

Current-controllable single bidirectional switch circuit and control method thereof

ActiveCN117614091BReliable switchingextended reaction time
The application relates to the field of electronic technology, in particular to a current-controllable single / dual-direction switch circuit and a control method thereof, which comprises a driving circuit, a diode, a lithium battery, a generator and a switch tube circuit. The two or more than two transistors are connected in parallel through the setting of the switch circuit, the reaction time of controlling the direction of the lithium battery loop current can be improved, the driving circuit is connected with the control signal of the external device, the direction of the lithium battery loop current can be determined, and the switch circuit can work in a dual-control mode. The single / dual-direction switch circuit designed by the scheme also has the overcurrent protection function of the reverse current of the lithium battery loop when the external control signal is a bidirectional signal.
Owner:FUZHOU SLIDER ELECTRONIC TECH CO LTD

Control device of internal combustion engine, control method of internal combustion engine, computer program product, and storage medium

PendingCN122236536AOptimal control methodgood controlsElectrical controlExhaust apparatus
This invention provides a control device for an internal combustion engine, a control method for an internal combustion engine, a computer program product, and a storage medium. When the intake air volume is calculated based on a flow rate signal, the control device (36) of the internal combustion engine (10) performs catalyst protection control to limit the intake air volume based on the exhaust temperature and a first predetermined temperature to protect the catalyst. When the intake air volume is calculated based on a pressure signal, the control device (36) of the internal combustion engine (10) performs catalyst protection control based on the exhaust temperature and a second predetermined temperature different from the first predetermined temperature. Accordingly, the timing of initiating catalyst protection control when the intake air volume is calculated based on a flow rate signal is different from the timing of initiating catalyst protection when the intake air volume is calculated based on a pressure signal.
Owner:HONDA MOTOR CO LTD

Control method and device of water heater

The invention belongs to the field of water heaters, and discloses a control method and device of a water heater. The method comprises the following steps: a plurality of millimeter wave radar modules collect current key posture characteristic parameters of a user to take a shower, wherein the current key posture characteristic parameters comprise the height, the body shape and the action posture; according to the current key posture characteristic parameters, the multiple millimeter wave radar modules determine current shower energy and a target shower trigger threshold value of the user to be showered, and the current shower energy and the target shower trigger threshold value are sent to the water heater; if the current shower energy is larger than the target shower trigger threshold value, the water heater determines a target shower mode of the user to take a shower according to the target shower trigger threshold value; and in response to a water heater opening operation of the to-be-showered user, the water heater operates according to the target showering mode. By the adoption of the method, frequent mechanical manual operation of a user can be simplified, and the use experience of the water heater is improved.
Owner:VATTI CORP LTD

Mobile pressure vessel transportation frame manufacturing device

The invention discloses a movable pressure vessel transportation frame manufacturing device, and relates to the technical field of frame manufacturing, the movable pressure vessel transportation frame manufacturing device comprises a sliding block, the sliding block is slidably connected with a welding assembly, a fixing block is fixedly connected to the middle of the sliding block, the fixing block is an L-shaped plate, and a circular groove is formed in the side, close to the welding assembly, of the fixing block; a plurality of rolling wheels are rotationally connected into the circular groove, a V-shaped groove is formed in the middle of the outer side of each rolling wheel, and the multiple rolling wheels are arranged in the inclined direction of the edge of the fixing block. According to the movable pressure vessel transportation frame manufacturing device, welding wires are guided through the rolling wheels and clamped between the rolling wheels and the circular grooves, so that the welding wires can be accurately conveyed to the welding position in the preset direction, the swing range of the welding wires can be limited through close contact of the rolling wheels, the stability of the welding wires is kept, uniform and continuous welding seams can be formed easily, and the production efficiency is improved. And the defects of non-uniform welding seam width, undercut and the like are avoided.
Owner:HEBEI CHANGHUA AUTOMOBILE

Gantry dual-drive detection equipment based on linear motor control

ActiveCN111085971Bshorten the timeOptimal control methodUsing optical meansWork benches
The double-drive detection equipment based on linear motor control gantry includes main frame, Y-axis marble base, Y-axis motion mechanism, X-axis marble bearing platform, X-axis motion mechanism, Z-axis marble bearing platform, and Z-axis motion mechanism; the Y-axis motion mechanism includes Y-axis guide rail, Y-axis slider, Y-axis active axis linear motor stator, Y-axis active axis linear motor mover, Y-axis driven axis linear motor stator, Y-axis driven axis linear motor mover, Y-axis grating ruler, and Y-axis grating ruler reading head; the X-axis motion mechanism includes X-axis guide rail, X-axis slider, X-axis linear motor stator, X-axis linear motor mover, X-axis grating ruler, and X-axis grating ruler reading head. The use of linear motor to drive the gantry instead of the traditional rotary motor to drive the lead screw improves the running speed and efficiency of the equipment; the use of grating ruler to detect displacement improves the overall repeat positioning accuracy of the equipment; the Y-axis control method is optimized to improve the running stability of the equipment and the responsiveness of the alarm.
Owner:SHANGHAI SANYOU TECH DEV CO LTD

Anion exchange membrane water electrolysis hydrogen production control method and system based on data-driven model predictive control

The invention provides an anion exchange membrane water electrolysis hydrogen production control method and system based on data-driven model predictive control, and the method comprises the steps: collecting operation data, and constructing a system non-mechanism model through a BP neural network algorithm; predicting output parameters of the AEM water electrolysis hydrogen production system according to the system non-mechanism model; inputting the output reference value y (t) into a system non-mechanism model and a controller; the x (t) is optimized through an optimization model constructed through an NSGA-II algorithm; the delta x (t) is applied to an AEM water electrolysis hydrogen production system, and actual output and predicted output are obtained; comparing to obtain an error value, and performing feedback correction on the controller; and updating the system non-mechanism model and the prediction model. According to the method, the non-mechanism model and the prediction model of the system are dynamically updated, the dynamic change of the AEM water electrolysis hydrogen production system can be reflected in real time, the control model is dynamically updated, and the precision of the control model is effectively improved.
Owner:SHENZHEN WENSHI HYDROGEN ENERGY TECH CO LTD