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92results about How to "Reduce control complexity" patented technology
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Water-air cross-medium aircraft
The invention discloses a water-air cross-medium aircraft. The water-air cross-medium aircraft comprises a driving device; a plurality of rotors; the rotor wings comprise underwater propellers and aerial propellers; one end of the underwater paddle is connected with the driving device, and the other end is connected with the aerial paddle; the air propeller can rotate relative to the underwater propeller so as to be in an unfolded state coaxial with the underwater propeller when sailing in the air and in a folded state inclined relative to the underwater propeller when sailing underwater. The underwater propellers and the air propellers are integrated together to form the rotor wing, so that the overall layout of the rotor wing is more compact, shared driving can be achieved, the rotor wing serves the air propellers and the underwater propellers, power transmission is more direct and efficient, energy loss caused by an extra transmission device is reduced, and therefore the underwater and air high-speed cruise is achieved while the energy consumption is reduced. And the size, the weight and the control complexity of the propulsion system are reduced.
Owner:SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY
High-altitude balloon self-destruction device and high-altitude balloon system
PendingCN119551175AImprove stabilityensure safetyBalloon aircraftsHigh-altitude balloonMechanical engineering
The invention relates to the technical field of aerostats, and provides a high-altitude balloon self-destruction device and a high-altitude balloon system.The high-altitude balloon self-destruction device comprises a mounting frame, the mounting frame is provided with a first mounting part, and the first mounting part is used for being fixedly connected with a dome flange of a high-altitude balloon; the hob is provided with a first end and a second end on the axis of the hob, the first end is connected to the mounting frame through a safety piece, the second end is used for being connected with a traction rope, and the hob can be separated from the mounting frame under the action of the traction rope and cut the balloon film of the high-altitude balloon. After a flight task is finished and the balloon-parachute cabin is separated, the parachute can pull the traction rope to trigger the hob of the high-altitude balloon self-destruction device to destroy the balloon membrane, so that the balloon safely lands back to a preset area, and the safety problem that the balloon body of the high-altitude balloon uncontrollably flies at high altitude for a long time is avoided; in addition, the high-altitude balloon can be prevented from being in direct contact with the balloon film soft structure in the releasing process, and the safety of the balloon releasing process is guaranteed.
Owner:AEROSPACE INFORMATION RES INST CAS
Lithium battery joint health state estimation and life prediction method
The invention discloses a lithium battery combined health state estimation and service life prediction method, which comprises the following steps of: 1, predicting the health state and the residual service life of a lithium battery by carrying out pulse test on the lithium battery and establishing a Thevenin model at the aging normal operation stage of the lithium battery; 2, after the lithium battery enters a deep aging stage, performing an EIS test on the lithium battery to obtain impedance spectrum data, and correcting the Thevenin model into a variable order RC model; and 3, estimating the health state of the deep aging stage by using the impedance spectrum data and parameters identified by the variable order RC model, and when the prediction error of the two parameters is smaller than an error threshold value, considering that a battery health state and residual life prediction model suitable for the deep aging stage is successfully established. Otherwise, adjusting the order of the variable-order RC model to reduce the error. According to the invention, the reliability of lithium battery life prediction and estimation in a complete life cycle can be ensured, so that the control complexity and cost of a test working condition can be effectively reduced.
Owner:HEFEI UNIV OF TECH
Twin-screw compressor
InactiveCN119594015AReduce structural complexityReduce control complexityRotary piston pumpsRotary piston liquid enginesSpool valvePhysics
The invention discloses a double-screw compressor which comprises a shell, a first screw, a second screw, a third screw and a fourth screw, the shell is provided with an inner cavity, an air inlet and an air outlet, and the air inlet and the air outlet are communicated with the inner cavity; the at least one pair of screws are rotatably arranged in the inner cavity of the shell; and the internal volume ratio adjusting mechanism is arranged at the position, close to the exhaust port, of the shell and used for carrying out stepped adjustment on the through-flow area between the inner cavity of the shell and the exhaust port. According to the technical scheme, various working conditions of the compressor can be adapted, components such as a sliding valve are omitted, and the structural complexity and the control complexity are reduced.
Owner:BOTH REFRIGERTION DALIAN
Large model reasoning hardware accelerator based on data flow execution
PendingCN121902982ASimple structureincrease profitBiological modelsInference methodsComputer hardwareData stream
The invention discloses a large model reasoning hardware accelerator based on data flow execution, and belongs to the technical field of large model reasoning hardware acceleration. Each node comprises a linear calculation kernel used for sequentially completing query / key / value projection and attention output projection in multi-head attention calculation, dimension raising projection and dimension reduction projection calculation in a feedforward neural network layer, and inverse quantization operation after each projection is output; the multi-head attention calculation kernel is used for completing loading and quantization of query / key / value vectors, multi-head division and cache management, attention score calculation, Softmax normalization, context vector generation and KV cache updating; the RLA kernel is used for completing residual addition, layer normalization, quantization / inverse quantization and nonlinear activation calculation of each layer; the three cores in the same node are located in the same SLR area, and data transmission is carried out through a hardware queue and an HLS blocking mechanism. According to the invention, high hardware utilization rate and low-delay reasoning can be realized.
Owner:HUAZHONG UNIV OF SCI & TECH
Quadruped robot control method based on auxiliary air injection
PendingCN119440077Aprevent fallingImprove adaptabilityVehicle position/course/altitude controlPosition/direction controlSimulationClassical mechanics
The invention relates to the technical field of quadruped robot control, in particular to a quadruped robot control method based on auxiliary air injection. The method comprises the following steps: constructing a kinetic equation of the quadruped robot; the posture data of the quadruped robot are collected in real time through a sensor, and the posture of the quadruped robot is calculated; the unbalance degree of the quadruped robot is calculated according to the poses, and whether an air injection device is started or not is judged; and when the air injection device is started, the air injection angle, the air injection time and the air injection force are controlled by adopting a PID self-adaptive control algorithm until the quadruped robot restores to be stable. When the quadruped robot moves at a high speed, the robot easily loses balance due to inertia and external interference. The air injection device can quickly generate counter-acting force at the moment of unbalance to help the robot to recover balance and prevent the robot from falling down or being out of control.
Owner:HEFEI UNIV OF TECH
Single light controller aerial automatic replacement device based on UAV platform
ActiveCN115781756BReduce maintenance costsimprove securityArmsMetal-working hand toolsRobotic armElectric machine
The present invention discloses an aerial automated replacement device for a single lamp controller based on an unmanned aerial vehicle platform, comprising an unmanned aerial vehicle, a mechanical arm and a controller disassembly and assembly mechanism, wherein the mechanical arm is set up on the unmanned aerial vehicle, and the controller disassembly and assembly mechanism is fixed to the end of the mechanical arm; the controller disassembly and assembly mechanism comprises a rotating motor, a mechanical claw housing, a mechanical claw and a camera assembly for visual positioning when replacing the controller; the mechanical claw housing is fixed to the driving end of the rotating motor, the camera assembly is fixed to the mechanical claw housing, and a mechanical claw motor is arranged on the side of the mechanical claw housing close to the controller. In addition, the device is also equipped with an equipment recovery bin and an equipment replacement bin, which can be used to store recovered parts and replacement parts. The invention realizes the automatic replacement of a plug-in type single lamp controller installed on the top of a street lamp fixture in the air through a unmanned aerial vehicle platform, which greatly reduces the maintenance cost and safety hazards of this type of single lamp controller and improves work efficiency.
Owner:NANJING LICON LOT TECH CO LTD
A self-cleaning aluminum ash conveying device
This invention provides a self-cleaning aluminum ash conveying device, belonging to the field of aluminum ash conveying. It includes a screw conveyor with a top cover. The top cover has partition grooves evenly spaced along its length. Air holes are provided on both the front and rear sides of the screw conveyor, with each pair of adjacent air holes forming a group, and several groups arranged along the length of the screw conveyor. A moving assembly is symmetrically arranged on both the front and rear sides of the screw conveyor, and a moving plate is installed within the moving assembly. This invention, through the cooperation of the moving assembly, lifting assembly, and connecting assembly, enables the simultaneous and reverse blowing of aluminum ash from both sides of the screw conveyor. Simultaneously, the partition frames on both sides isolate the interior of the screw conveyor, preventing the blown aluminum ash from shifting laterally within the screw conveyor, thus ensuring a more thorough cleaning effect.
Owner:ANHUI YONGMAOTAI ENVIRONMENTAL PROTECTION TECH CO LTD +1
A full cotton spunlace nonwoven fabric wastewater treatment device and method
This invention discloses a wastewater treatment device and method for all-cotton spunlace nonwoven fabric, relating to the field of wastewater treatment technology. The device includes a wastewater treatment tank, a collection tank, a drive structure, two sets of trajectory running structures, and a pusher block. This invention utilizes the coordinated action of the pulling and restraining units in the trajectory running structure to move the pusher block along a rectangular closed trajectory of backward, downward, forward, and upward movement, sequentially completing the functions of drainage, scraping and conveying impurities, and resetting after impurity removal. When the pusher block moves forward, it contacts the opening and closing structure, automatically opening the sealing door through the mechanical linkage of the contact plate, slide rod, connecting plate, guide plate, and connecting rod, and closing it as the pusher block resets. This eliminates the need for a separate power source or sensor for the sealing door, simplifying the device structure and reducing manufacturing costs and control complexity.
Owner:ANHUI YINSHAN FLAME RETARDANT NEW MATERIAL TECH CO LTD +1
Deformation device for transformation of wheels and feet
Owner:UNIV OF JINAN
Autonomous task planning system for optical agile remote sensing satellite task
The invention provides an autonomous task planning system for an optical agile remote sensing satellite task, and the system comprises a conventional task planning module which is used for determining a visible time window of a conventional observation target according to the conventional observation target information, the satellite orbit information, and the pointing range of a satellite optical axis; performing conventional task planning according to the visible time window of the conventional observation target to obtain a conventional task sequence; the standby working module is used for executing tasks in sequence according to a conventional task sequence and acquiring execution states of subsystems and single machines on the satellite; the emergency task planning module is used for re-planning a first task which is not executed in the conventional task sequence to obtain an updated task sequence when the execution state is abnormal or temporary target injection is received; and the standby working module is also used for executing tasks in sequence according to the updated task sequence and acquiring execution states of each subsystem and each single machine on the satellite. According to the scheme, the control complexity of a satellite ground system is reduced, and the autonomous task planning capability of the optical agile remote sensing satellite is improved.
Owner:BEIJING INST OF CONTROL ENG
A switch for liquid metal printing
This utility model provides a switch for liquid metal printing, mainly relating to the technical field of liquid metal printing equipment. The switch for liquid metal printing includes a nozzle mounting plate, a graphite plate, ceramic fiber cotton, a fixing plate, a connecting rod, and a nozzle. The nozzle is fixedly installed on the lower part of the nozzle mounting plate, and the upper part of the nozzle mounting plate serves as the sealing surface of the switch. The nozzle mounting plate is fixedly installed in the printing crucible from top to bottom, providing a stable mounting reference for the entire switch. The advantages of this utility model are: this equipment can meet the high flow rate requirements with a single elongated switch, eliminating the need for multiple individual circular hole switches, simplifying the structure, reducing the disturbance of the switch to the liquid metal, and effectively improving the metal printing quality.
Owner:KUNSHAN JINGWEI NEW MATERIALS RES INST CO LTD
A material conveying device for water conservancy construction
The present invention discloses a material conveying device for water conservancy construction, including a base, a conveying cylinder is arranged on the base, a feed port is arranged at one end of the conveying cylinder, a first discharge port is arranged at the other end, a conveying blade is rotatably arranged in the conveying cylinder, a discharge port is also arranged on the conveying cylinder beside the first discharge port, an aggregate box is also arranged on the base, the discharge port is connected with the aggregate box, a second discharge port is arranged on the top of the aggregate box, a pump mechanism is also arranged in the aggregate box, the pump mechanism can pump the concrete in the aggregate box out from the second discharge port, and an opening and closing mechanism is arranged in the discharge port. When the supply of concrete needs to be suspended, the opening and closing mechanism can open the discharge port, the conveying blade continues to operate, and the concrete will be stored in the aggregate box through the discharge port. Since the concrete in the conveying blade is still flowing continuously, the present invention is not prone to the situation where the concrete stands and solidifies in the conveying cylinder.
Owner:SICHUAN ZHONGLIYUAN CONSTR ENG CO LTD
A multi-vehicle cooperative control method, system, medium and program product
PendingCN122239723Aovercome deficienciesGet rid of indirect control modeVehicle position/course/altitude controlAdaptive control
This invention discloses a multi-vehicle cooperative control method, system, medium, and program product. The method includes constructing a lateral and longitudinal coupled dynamic model for the multi-vehicle cooperative transportation system and extracting the model matrix of the lateral and longitudinal coupled dynamic model; constructing system constraint equations for the multi-vehicle cooperative transportation system with the cargo as the leader, including motion constraints and articulation constraints, and extracting the constraint matrix of the system constraint equations; obtaining the real-time state of the multi-vehicle cooperative transportation system; calculating the constraint forces of the multi-vehicle cooperative transportation system based on the model matrix of the lateral and longitudinal coupled dynamic model, the constraint matrix of the system constraint equations, and the real-time state; and calculating the actual control quantities of each vehicle based on the constraint forces of the multi-vehicle cooperative transportation system. This invention aims to solve the challenges of strong coupling, nonlinearity, and underactuation in existing multi-vehicle cooperative transportation systems, and improve the tracking performance of multi-vehicle cooperative transportation systems under topologically stable configurations.
Owner:HUNAN UNIV
A six-degree-of-freedom underwater robot and a control system thereof
This invention discloses a six-degree-of-freedom underwater robot, comprising a frame, a propulsion system, a sensor monitoring system, and a controller. The propulsion system includes four horizontal vector thrusters and two vertical thrusters. The controller is communicatively connected to the propulsion system and the sensor monitoring system, and achieves independent, decoupled control of the propulsion system's six degrees of freedom based on multi-dimensional sensor data collected by the sensor monitoring system. This invention also discloses a corresponding six-degree-of-freedom underwater robot control system, including a host computer layer, a ROS core layer, a control layer, a drive layer, and a hardware terminal layer, all connected by communication. This solution optimizes the hardware layout, achieves independent, decoupled control of the six degrees of freedom, and improves underwater motion and hovering stability. This design features deep hardware and software synergy, improving underwater operational stability, shortening the development cycle, and enhancing operational safety, making it suitable for various scenarios such as underwater exploration, detection, and scientific research.
Three-axis moving mechanism for mounting gear backlash shims
ActiveCN224273975UReduce compound exercise requirementsavoid collision riskMetal working apparatusControl systemReduction drive
The present application discloses a three-axis moving mechanism for installing a gear side clearance gasket of a reducer, including a base, on which a frame is fixedly installed. Inside the frame, there are a Z-axis transmission component, a Y-axis transmission component, and an X-axis transmission component. The Y-axis transmission component is arranged on the Z-axis transmission component, and the X-axis transmission component is arranged on the Y-axis transmission component. By setting the Y-axis transmission component, the X-axis transmission component, and the Z-axis transmission component, after the division of labor among the Z-axis, Y-axis, and X-axis, the control system can more simply plan the pick-up-move-place path, reduce the compound motion requirements of each axis, lower the control complexity, and each axis independently controls the direction, which can avoid the collision risk caused by structural overlap during multi-axis linkage.
Owner:LIUZHOU VOCATIONAL & TECHN COLLEGE +1
Double-cold-source fresh air dehumidification system
ActiveCN224065621UReduce the amount of developmentSimple structureMechanical apparatusLighting and heating apparatusFresh airSoftware development
The utility model relates to a double-cold-source fresh air dehumidification system which adopts two electric ball valves to replace a combination of a plurality of complex valves in related technologies, so that the system structure and the control logic are greatly simplified, the manufacturing cost and the control complexity of the system are effectively reduced, the hardware cost and the software development amount are reduced, and the system reliability is improved. The control strategy can be automatically switched according to the air inlet temperature, complex control program adjustment and shutdown restart are not needed, system faults caused by external condition changes such as cooling water supply interruption are effectively avoided, and stability and reliability are higher.
Owner:NINGBO DEYE DAILY APPLIANCE TECH CO LTD
Aircraft electric heating control system and fault monitoring method based on BITE health management
The application belongs to the field of water / sewage system electromechanical equipment of civil aviation, and relates to an aircraft electric heating control system and a fault monitoring method based on BITE health management. The system comprises a plurality of independent electric heating control valves arranged on the water / sewage system. Any electric heating control valve comprises an electric mechanism, a valve body and a heating assembly. The electric mechanism is used to drive the valve body to rotate to control the flow of the passage. The valve body is arranged in the passage, and the periphery of the valve body is provided with the heating assembly according to the requirement, which is used to control the temperature of the valve body. The electric mechanism is further integrated with a controller, the controller is integrated with a fault monitoring module, and the controller is in real-time communication with an upper computer, which is used to realize the control of the electric mechanism, the temperature control of the heating assembly and the fault monitoring. The application integrates the functions of valve opening and closing control, position feedback, electric heating, overheating protection and health management, has high component integration degree, reduces the control complexity of the upper system controller and improves the reliability of the system.
Owner:XINXIANG AVIATION IND GROUP
A method and system for weak magnetic control of an electric vehicle torque-enhanced permanent magnet motor
ActiveCN121395998BImplement MTPV operationRealize speed control
This invention discloses a field weakening control method and system for a torque-enhanced permanent magnet synchronous motor for electric vehicles, relating to the field of torque-enhanced permanent magnet synchronous motors, including the following steps: Step S1, based on the actual speed of the torque-enhanced permanent magnet synchronous motor... ω m and given speed ω m * Step S2: Determine the current amplitude setpoint; Step S3: Calculate the current trajectory during MTPA control operation based on the inverter's limit voltage. U lim With stator voltage setpoint U s The difference Δ U Step S4: Determine whether field weakening control needs to be activated; Step S5: The field weakening area includes field weakening zone 1 and field weakening zone 2; Step S6: Generate a space vector pulse width modulation signal based on the current given value and the actual current value. This invention adopts the above-mentioned field weakening control method and system for torque-enhanced permanent magnet motors in electric vehicles to realize speed regulation control of torque-enhanced permanent magnet synchronous motors across the entire speed range.
Owner:SHANDONG UNIV +1
A reaction vessel for producing polyurethane adhesives
PendingCN122076363ARealize automatic adjustmentSimple structural designRotary stirring mixersTransportation and packagingAdhesive cementPolymer science
This invention belongs to the field of polyurethane adhesive production technology, specifically relating to a reaction vessel for polyurethane adhesive production. The reaction vessel includes a tank body, with a stirring motor fixed to the upper end of the tank body. A stirring shaft is fixed to the output end of the stirring motor, and the tank body and the stirring shaft are rotatably connected. Multiple adjustment chambers are sequentially formed inside the stirring shaft from top to bottom. Multiple stirring units are assembled on the outer side of the stirring shaft and inside the tank body. Each stirring unit consists of multiple stirring blades located on the same horizontal plane. This invention uses a vertically positioned sensing plate as a direct viscosity sensing element, which overcomes the oil pressure inside the swing cylinder and drives the sleeve, cross arm, and bushing to produce a corresponding amplitude of horizontal swing. This is transmitted to the stirring blades through an angle adjustment component, achieving automatic adjustment of the stirring blade angle. This allows the stirring blades to dynamically adjust the stirring angle according to real-time changes in the material viscosity.
Owner:JIANGSU CHANGNUO SPORTS VENUES ADVANCED MATERIALS CO LTD
Feeding and discharging mechanism for winding machine
ActiveCN224160028Usave spaceImprove operational reliabilityControl devices for conveyorsWinding machineControl theory
The utility model discloses a feeding and discharging mechanism for a winding machine, which comprises a mounting seat and a rotary driving unit for driving the mounting seat to rotate and reverse, and a feeding clamping unit and a discharging clamping unit are arranged on the mounting seat at an interval; wherein the rotary driving unit drives the mounting seat to rotate, so that the feeding clamping unit and the discharging clamping unit synchronously execute feeding and discharging actions; the feeding and discharging mechanism is simplified and compact in structure, low in manufacturing cost, small in installation space, stable in operation and good in use performance.
Owner:YUEQING YOUYI ELECTRONIC TECHNOLOGY CO LTD
Transport equipment fork control method, device and equipment
PendingCN121815999Aavoid collisionReduce control complexityControl devices for conveyorsMechanical conveyorsTrackwaySimulation
The invention relates to a carrying equipment fork control method, device and equipment. The method comprises the following steps: receiving a road right application sent by first carrying equipment; on the basis of the road right application, the position of each second carrying device is obtained under the condition that the first carrying device passes through the target type track after bending, and the target type track is the track with the track length smaller than the operation safety distance of the first carrying device; and on the basis of the positions of the second carrying devices, under the condition that it is judged that the second carrying devices exist in the curve where the first carrying device is about to pass and in the running safety distance length after the first carrying device goes out of the curve, control information for refusing the first carrying device to pass through the curve is generated. By the adoption of the method, the first carrying equipment can be prevented from colliding with other carrying equipment on the curve or after the curve, and safety is improved.
Owner:MEETFUTURE TECH (SHANGHAI) CO LTD
A vertical turning and milling machining center
PendingCN122274657AImprove smoothness of movementImprove processing efficiencyMilling cutterDrive shaft
This invention relates to the field of vertical milling and turning technology, and discloses a vertical milling and turning composite machining center, including a machining table, a support frame, a vertical cantilever, a drive motor, and a drive shaft. A composite machining mechanism for switching machining types is mounted on the side of the vertical cantilever; a switching mechanism for changing the workpiece's motion state according to the machining type is provided below the composite machining mechanism; a spraying mechanism for changing the coolant's application according to the machining type is provided on the upper surface of the machining table; a clamping mechanism for fixing a ring-shaped workpiece is provided at the top of the switching mechanism; the composite machining mechanism includes a sliding frame plate, with two double-toothed plates slidably connected inside the sliding frame plate. This invention utilizes the forward and reverse directions of the vertical cantilever's lifting stroke to correspond to different machining actions, improving the continuity of actions and machining efficiency, and ensuring the positional stability and synchronization accuracy of the milling cutter and drill bit near the workpiece.
Owner:LIAOYANG HONGTU CARBON PROD CO LTD
Optical transmission system, optical fiber loop system and electronic device
PendingCN121984592AReduce control difficultyReduce control complexityRing-type electromagnetic networksFibre transmissionNonlinear distortionTransmission technology
The invention discloses an optical transmission system, an optical fiber loop system and electronic equipment, and relates to the technical field of optical transmission, and the optical transmission system comprises an isolation module which is connected with an output port of a first coupler and is used for receiving an optical fiber loop input signal; the first end of the hollow-core optical fiber is connected with the isolation module, and the hollow-core optical fiber is used for transmitting an optical fiber ring input signal; the feedback module is connected with the second end of the hollow-core optical fiber and is used for returning the input signal of the optical fiber ring to the hollow-core optical fiber; and the isolation module is also connected with the acousto-optic modulator and is also used for outputting the returned input signal of the optical fiber ring to the acousto-optic modulator. The fiber loop input signal is transmitted back and forth in the single-section hollow-core fiber, so that the equivalent transmission distance of the single-section hollow-core fiber is doubled, noise cumulants such as amplified spontaneous emission noise and nonlinear distortion are remarkably reduced, the signal transmission quality and the system stability are improved, and the system performance is improved. And the control difficulty of the acousto-optic modulator and the operation and maintenance complexity of the system are reduced.
Owner:PENG CHENG LAB
Mahjong machine and mahjong tile pushing and lifting device thereof
The utility model discloses a mahjong machine's push card and lift card device and mahjong machine. A mahjong machine's push card and lift card device, including frame, annular storage card groove, push card rod and lift card board, the direction of going into card mouth on storage card groove and the direction of going out of card mouth are 45 to 90 degrees angle of angle, push card and lift card device still include first cam assembly, second cam assembly and set up on frame's rotary drive part, and rotary drive part drives first cam assembly and second cam assembly operation simultaneously, first cam assembly drives push card rod movement, and push card rod promotes the mahjong card in storage card groove and does push card movement, and second cam assembly drives lift card board and does lift movement, and push card movement and lift movement periodically alternate. Still disclose a kind of mahjong machine, including card feeder, and each group card feeder corresponds a group push card and lift card device. Advantage is: the cam transmission structure of this scheme is more stable, and controllability is stronger in trajectory, and significantly reduce the friction and collision risk between mechanism.
Owner:王定君
Cutting and nailing combined mechanism for aluminum alloy pallet machining
The invention discloses a cutting and nailing composite mechanism for aluminum alloy pallet processing, and belongs to the field of pallet processing equipment, the cutting and nailing composite mechanism comprises a base, and the top end of the base is fixedly connected with a portal frame. By arranging the abutting mechanism, when a hydraulic rod drives a first connecting base and a second connecting base to move downwards, a cutting mechanism and a nail gun assembly can be driven to get close to an aluminum alloy pallet at the same time, after the cutting mechanism cuts a sectional material, when the hydraulic rod drives a pressing plate to move upwards, the hydraulic rod drives a fixing base to move upwards, and a wedge-shaped rod abuts against an abutting rod; the side, close to the abutting rod, of the wedge-shaped rod is a curved surface, so that the wedge-shaped rod transversely moves towards the interior of the fixed base, the rolling wheel is pushed to move downwards while rolling, the sliding base drives the movable base to move downwards, a travel switch of the nail gun assembly is triggered, and the nail gun assembly conducts nailing operation. The equipment cost and the control complexity are effectively reduced, and the use is convenient.
Owner:CHANGSHU DONGSHUN PACKING MATERIAL CO LTD
Electric pole assembly vertical drilling device and control method
ActiveCN119466578AGuaranteed operabilityGuaranteed reliabilityDerricks/mastsDirectional drillingControl complexityPetroleum engineering
The invention provides an electric pole assemblage vertical drilling device and a control method.The vertical drilling device comprises a rotary platform, a large arm, a small arm and a drilling device which are sequentially hinged, a first working oil cylinder is arranged between the rotary platform and the large arm, a second working oil cylinder is arranged between the large arm and the small arm, and the drilling device is arranged on the rotary platform. A working oil cylinder III is arranged between the small arm and the drilling device; according to the control method, the first working oil cylinder or the second working oil cylinder is selected as the driving oil cylinder, and the remaining oil cylinders are cooperatively controlled along with the driving oil cylinder, so that the drill rod of the drilling device always keeps vertically downward movement, the operability and reliability of drilling are guaranteed, the control complexity of the vertical drilling device is effectively reduced, and the drilling efficiency is improved. The construction efficiency and the perpendicularity of holes in the drilling process can be effectively improved, and the drilling deviation phenomenon is prevented.
Owner:STATE GRID HUNAN ELECTRIC POWER CO LTD ELECTRIC POWER SCI RES INST +3
High efficiency gas-liquid separator for refrigeration equipment and separation process thereof
PendingCN122523778AStrong vortex fieldReduce gas phase liquid carrying rate
This invention relates to the field of auxiliary equipment technology for refrigeration systems, and discloses a high-efficiency gas-liquid separator for refrigeration equipment and its separation process. The high-efficiency gas-liquid separator includes: a gas-liquid mixing spiral tube, the inlet of which extends outside the gas-liquid separation shell, and the outlet which is coiled above a conical separation hood. The gas-liquid mixing spiral tube achieves pre-separation of the gas and liquid phases, and centrifugal force is used to throw large droplets first toward the tube wall. Then, in conjunction with the conical separation hood, a secondary strong vortex field is formed, which further throws small droplets toward the inner wall and causes them to coalesce and fall, significantly improving the separation efficiency. The outer wall of the conical separation hood slides in contact with a scraper, which is linked to the impeller below through a long shaft rotation axis. A float ball is provided at the inlet of the liquid phase discharge pipe, and an impeller is installed between the float ball and the pipe opening of the liquid phase discharge pipe. During discharge, the liquid drives the impeller to rotate, and the long shaft rotation axis drives the scraper to continuously scrape off frost against the outer wall of the conical hood, preventing low-temperature frost from affecting the separation effect.
Owner:XINCHANG JUNDA REFRIGERATION EQUIP CO LTD
Current unbalance degree and power oscillation suppression method based on virtual synchronous generator
PendingCN122512451Aavoid frequencyAvoid the influence of voltage
This invention discloses a method for suppressing current imbalance and power oscillations based on a virtual synchronous generator (VSG). First, a traditional VSG loop model is established and its parameters are tuned. Then, the positive and negative sequence components of the grid-connected voltage, filter capacitor terminal voltage, and grid-connected current are extracted using a time-delay cancellation method and transformed to a synchronous rotating coordinate system. An equivalent VSG grid-connected loop model is added to the traditional VSG model. The traditional active power and extended reactive power calculation methods are transformed to the synchronous rotating coordinate system, and a reference value for the grid-connected current that suppresses the second harmonic component of the power is derived. A PI controller is used to make the actual grid-connected current track the reference value, and the output modulated wave drives the inverter. This invention can simultaneously suppress the second harmonic oscillations of active and reactive power, improve grid-connected current imbalance and distortion problems, while retaining the active power frequency regulation, reactive power voltage regulation, and inertial support characteristics of the VSG, thus improving the stability and power quality of the new energy grid-connected system.
Owner:CHINA UNIV OF MINING & TECH
An intelligent pillow system with multi-zone airbag adjustment
PendingCN122074964ASolve the accuracy problemTimeliness of solutionPillowsSensorsHigh densitySimulation
The present invention discloses an intelligent pillow system with multi-zone airbag adjustment. The present invention precisely senses the head position and sleeping posture through a high-density fiber pressure sensor array, and based on this information, drives an innovative "single air pump + multiple electronic control valves" and "integral airbag + partitioned air conduction" structure, achieving remarkable beneficial effects: First, by immediately triggering the overall descent protection when the head is tilted up / down, it can actively prevent hyperextension and hyperflexion of the cervical vertebra, effectively reducing the risk of neck pain and discomfort. Second, the sensor without protrusions embedded and the PWM smooth adjustment of the airbag ensure a comfortable experience; the system adopts a single power unit and logical partition design, greatly simplifying the air circuit, significantly reducing the hardware cost, power consumption, and the failure rate of easy leakage in multi-chambers, and improving the reliability. In addition, the interaction mode combining user-set instructions and automatic recognition takes into account both convenience and personalization, and the self-learning module enables the pillow to continuously adapt to the user's habits, achieving long-term precise personalized support.
Owner:王镜馨