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Solder strip obtaining method and solar cell welding method
PendingCN121815763Aavoid plastic deformationLow soldering rateMetal working apparatusSolder feeding devicesElectrical batteryElectrical performance
The invention relates to a welding strip obtaining method and a welding method of a solar cell piece. The welding strip obtaining method comprises the following steps that effective welding parameters of a welding device are obtained; obtaining effective geometric parameters of the solder strip; based on the effective welding parameters and the effective geometric parameters, the yield strength range matched with the welding strip is obtained; and based on the yield strength range, a welding strip matched with the welding device is selected. According to the solder strip obtaining method and the welding method of the solar cell, the pseudo soldering rate of the solder strip is remarkably reduced, the solder strip is prevented from plastic deformation, cross section area reduction or snap due to overlarge wire winding tension, and the resistance of the solder strip is prevented from being increased, so that the welding quality and the electrical performance are improved.
Owner:TONGWEI SOLAR ENERGY (CHENGDU) CO LID
A packaging bag for quick-frozen food
Owner:ZHEJIANG FANGDING PACKAGING TECH CO LTD
An automobile lamp airtightness detection device
This invention discloses an automotive headlight airtightness testing device, relating to the field of airtightness testing. This device utilizes an inflatable airbag that, when inflated, elastically bulges. This bulge, in conjunction with an air guide mechanism pressing against the outside of the headlight insertion hole, seals the hole. The inflated airbag bulges, causing a sliding ring to move upwards. This internal expansion of the airbag exerts upward pressure, creating a clamping effect with the air guide mechanism. Under this clamping pressure, a seal is formed at the insertion hole. Compared to existing airtightness testing equipment, this device achieves sealing by applying downward pressure, reducing pressure on the overall headlight structure. This prevents errors in the test results caused by small vents within the headlight structure being sealed under downward pressure.
Owner:ZHEJIANG HONGGUAN LIGHTING TECH CO LTD
A nail removal device for environmentally friendly wooden door production
ActiveCN224274950UGuaranteed stabilityAchieve smooth movementNail extractorsStructural engineeringNail removal
This utility model discloses a nail removal device for environmentally friendly wooden door production, including a triangular plate. A handle is fixedly connected to the top of the triangular plate, and a nail-pulling plate is provided at the bottom of the triangular plate. This utility model belongs to the technical field of nail removers, specifically a nail removal device for environmentally friendly wooden door production that solves the problem of how nail removers are sometimes used to pry up and remove nails by clamping the nail remover onto a nail cover and using the corner of the nail remover as a fulcrum. In this method, the corner presses against the wooden door, causing damage, and the nail is not pried up perpendicular to the door, resulting in further damage to the door.
Owner:SHANDONG FUGUI DOORS & WINDOWS CO LTD
Pier column lossless climbing control method based on vision and force sensing fusion
ActiveCN121857472Aavoid elevationImprove structural safetyProgramme controlComputer controlRisk levelMachine vision
The invention relates to the technical field of machine vision, in particular to a pier column lossless climbing control method based on vision and force sensing fusion, and the method comprises the steps: collecting surface defect and material information to generate a three-dimensional state vector, and matching an extrusion force threshold matrix; distributed extrusion is realized through force sensing feedback to form primary adhesion; deformation is monitored, crack and spalling damage characteristics are identified, and a third-level risk vector field is generated; determining an initial control strategy according to risk level multi-objective optimization; the optimization effect is verified through secondary visual scanning and pressure monitoring, convergence is judged through the mode length change rate and the pressure standard deviation, and iteration is fed back if convergence is not conducted; after the current layer is stable, reinforcement learning is carried out to generate a displacement track, and the next layer is activated to repeat the whole process to realize collaborative climbing. Through a closed loop mechanism of visual pre-judgment, force control execution and dynamic verification, the surface damage of the pier column is effectively avoided, and the climbing efficiency and safety under complex working conditions are improved.
Owner:RES INST OF HIGHWAY MINIST OF TRANSPORT +1
Distribution network automation feeder terminal switching method, system and equipment with fault self-diagnosis function and medium
PendingCN122001094AReduce stepsSolve the problem of inconsistent standardsCircuit arrangementsFeeder lineSelf adaptive
The invention discloses a distribution network automation feeder terminal switching method, system and device with a fault self-diagnosis function and a medium. The method comprises the steps that an original electrical signal is collected through an input interface unit; intermediate information data are obtained through the signal processing module; electrical characteristics are collected through a main control module to obtain an interface type identification result, adaptive adjustment is carried out on the intermediate information data, and an adaptive signal is obtained and output; and acquiring and analyzing the digital signal to obtain device operation state information, performing fault diagnosis in combination with the interface type identification result, and triggering an alarm when abnormality is diagnosed. Intelligent conversion is achieved by integrating multiple interfaces, the problem that equipment interfaces of multiple manufacturers are incompatible is solved, the tedious operation of equipping multiple adapters on site is avoided, the accuracy and stability of cross-interface signal transmission are guaranteed, and the operation reliability, operation and maintenance convenience and system overall safety of the device in a complex environment are improved.
Owner:CHANGJIANG POWER SUPPLY BUREAU OF HAINAN POWER GRID CO LTD
用于配属执行器的方法、执行器组件和设备
Owner:ROBERT BOSCH GMBH
A transformer lead fixing device with deformation self-compensation function
ActiveCN121885363BAchieve elastic self-compensationconstant pressing forceTransformers/inductances coils/windings/connectionsCoupling contact membersTransformerClassical mechanics
This invention discloses a transformer lead fixing device with deformation self-compensation function, relating to the field of transformer technology. The invention includes a fixing plate fixed to the transformer housing, a lead fixing component, a deformation self-compensation mechanism, and a pin mechanism. The deformation self-compensation mechanism includes a clamping component fixed to the end of the lead and multiple stops disposed on the fixing plate. The clamping component has a multi-segmented bent elastic structure, and the stops have inclined abutment surfaces. The pin mechanism adjustably mounts the lead fixing component to the fixing plate. When the lead fixing component is driven to move closer to the transformer housing, the clamping component and the inclined abutment surfaces of the stops abut against each other, generating elastic deformation and achieving electrical contact between the clamping component and the terminal block. This invention, through the multi-segmented bent elastic structure of the clamping component and the unidirectional displacement adjustment of the pin mechanism, achieves adaptive compensation for deformation caused by thermal expansion and contraction and vibration, ensuring long-term stable electrical contact between the terminal block and the lead, and facilitating subsequent maintenance and adjustment.
Owner:ZHONGQI ELECTRIC POWER EQUIP CO LTD
Low-bath ratio high temperature and high pressure dyeing machine
The utility model discloses a low bath ratio high temperature high pressure dyeing machine relates to dyeing machine technical field, the utility model discloses a dyeing cylinder body and set up at the bottom end of dyeing cylinder body's chassis and set up between the both sides of dyeing cylinder body top cloth guide pipe still include: heat shield, set up at the outside of dyeing cylinder body, the utility model discloses through heat shield blocks the heat and spreads outward through cylinder body outer wall, avoids a large amount of heat energy waste, and still can avoid workshop temperature rise, guarantees the work efficiency and safety of staff, and in through heat exchange coil absorbs the heat that cylinder spreads outward and is blocked by heat shield, through heat conduction filler can ensure that heat shield and dyeing cylinder body between heat distribution is even, avoids the position temperature difference of being close to and being far from heat exchange coil too big influence structural strength to further safe and effective utilization dyeing machine work when the heat that cylinder loses, improves energy utilization, makes equipment run more environmental protection.
Owner:SHAOXING COUNTY HUA NAN TEXTILE PRINTING & DYEING CO LTD
Anti-cracking connecting structure of precast slab
The utility model discloses a prefabricated slab anti -cracking connecting structure relates to the technical field of assembly building, and this prefabricated slab anti -cracking connecting structure includes: contact board, is symmetrically arranged in the butt joint end surface of prefabricated slab and is fixedly connected in prefabricated slab, and the contact board is the wave -shaped tenon and mortise structure, and the concave -convex surface of wave -shaped tenon and mortise structure mutually engages, alloy ring, is set in the circumferential outside of contact board, prestressed anchor rod, the prestressed anchor rod is worn in prefabricated slab, bifurcated anchor bar, bifurcated anchor bar includes the main stem and bifurcated anchor head, and bifurcated anchor head sets up in one end of main stem and is connected in angle with main stem, and the end of bifurcated anchor head embeds adjacent prefabricated slab. The utility model through the wave -shaped mortise and tenon structure of contact board realizes the multiaxial constraint of adjacent prefabricated slab when being stressed, disperses the stress at the gap, reduces the cracking risk, and simultaneously realizes stress even transmission through bifurcated anchor bar and prestressed anchor rod, improves the seismic resistance and durability of link structure, realizes the effect of anti -cracking and easy construction.
Owner:GUILIN ARCHITECTURAL PLANNING & DESIGN GROUP CO LTD
An externally mounted composite fire detector
The utility model relates to smoke detection technical field, concretely is a kind of external hanging type composite fire detector, including shell;Shell inside is equipped with smoke detection mechanism, and smoke detection mechanism includes slow flow cavity, slow flow cavity is set in shell inside one end, two gas inlets are set in slow flow cavity side, and combustible gas sensor is fixedly connected in slow flow cavity inside, slow flow cavity side is communicated with air cavity, and air cavity side is communicated with detection cavity, and smoke detection assembly is fixedly connected in detection cavity inside. The aspirating smoke detector for detecting fire that is set can detect smaller smoke particles and combustible gas that early-stage technology cannot see, these particles are produced in the earliest stage of this fire of excessive heating and open fire or smoldering, can discover the existence of fire within hours before visible smoke even earlier, the very high sensitivity makes the aspirating smoke detector for detecting fire can send out alarm in time in the early stage of fire development, effectively prevent the spread and expansion of fire.
Owner:BEIJING JINGYU TECH CO LTD
Continuous reactor for producing methacrylate
ActiveCN224252789Uavoid elevationRapid responseProductsOrganic compound preparationMethacrylateContinuous reactor
The utility model belongs to the technical field of continuous reactors, and particularly relates to a continuous reactor for producing methacrylate, which comprises an instrument body and a motor, a rotating shaft is arranged at the output end of the motor, a rotating frame is fixedly mounted at the bottom of the rotating shaft, a first gear is fixedly mounted on the outer side of the rotating shaft, and a second gear is arranged on the rotating frame. A supporting column is arranged at the bottom of the second gear, and a stirrer is fixedly installed at the bottom of the supporting column. The scraper blade stirrer is installed to clean the inner wall, the motor is started and drives the rotating shaft to rotate, when the rotating shaft rotates, the rotating shaft then drives the rotating frame to rotate, the second gear on the rotating frame starts to rotate along with rotation of the rotating frame and under the interaction of the first gear, and the inner wall is cleaned through the scraper blade stirrer. The second gear rotates to drive the stirrer to rotate, then stirring is conducted in the instrument body, the stirrer is installed, reaction of reactants can be accelerated, the reaction rate can be increased, and even mixing of raw materials can be promoted.
Owner:SHANDONG WANDUOFU NEW MATERIAL CO LTD
Multi-channel uniform injection loop reaction device for preventing liquid phase implosion
InactiveCN121819725APrevent secondary explosionwell mixedProcess control/regulationChemical/physical/physico-chemical nozzle-type rreactorsSocial benefitsFluid phase
The invention provides a multi-channel uniform injection loop reaction device for preventing liquid phase implosion, and belongs to the technical field of injection loop reaction, and a material pretreatment unit is used for filtering raw materials and adjusting the temperature of the raw materials, so that the quality of the raw materials and the stable feeding state are ensured; the jet reaction unit adopts a mode of combining multi-channel jet and material dispersion to realize uniform mixing and reaction of materials; the temperature and concentration regulation and control unit monitors in real time and precisely regulates the temperature and concentration of the reaction system; the implosion early warning and regulation and control unit dynamically judges the implosion risk based on a risk assessment model and starts hierarchical regulation and control measures; the emergency pressure relief unit quickly relieves pressure when the pressure is abnormal, and accident expansion is prevented. Through the synergistic effect of all the units, an all-dimensional and multi-layer anti-explosive polymerization system is formed, the technical problem of implosion prevention and control in the liquid phase reaction is solved, the reaction efficiency and the product quality are improved, and remarkable economic value and social benefit are achieved.
Owner:LIAOYANG JINGYI CHEMICAL CO LTD
Fire early warning method and device, electronic equipment and storage medium
PendingCN121768131Aensure safetyAvoid monitoring fragmentation issuesFire alarm smoke/gas actuationEnvironmental resource managementFire risk
The invention relates to a fire early warning method and device, electronic equipment and a storage medium. The method comprises the steps that multi-dimensional fire parameters of a key area are collected; and a plurality of fire parameters such as symbolic gas, temperature, environmental parameters, smoke and flames are covered. And determining a fire parameter type of the key area based on the collected parameters, and further determining a target fire early warning model corresponding to the fire parameter type. And inputting the collected multi-dimensional fire parameters into the target fire early warning model, outputting the fire risk level of the key area, monitoring the fire risk level of the key area, and starting a fire prevention and extinguishing strategy for the key area under the condition that the fire risk level meets the condition. A key area covers a monitoring network of a plurality of working areas, so that the problem of monitoring fragmentation is avoided, and comprehensive and unified monitoring of mine fire factors is realized. According to different fire parameter types, different early warning models are adopted to analyze multi-dimensional fire parameters, so that early warning is more scientific and stable.
Owner:CCTEG CHINA COAL RES INST +1
Manufacturing method of fluorine-free anti-splashing string technology shoe upper
PendingCN122581543AMeet environmental protection requirementsExcellent waterproof performance attenuation
This invention discloses a method for manufacturing a fluorine-free water-repellent upper. The method includes: providing a waterproof layer woven from yarn treated with fluorine-free waterproofing; providing an inner lining layer knitted from cotton blend yarn; sewing multiple deformation-resistant yarns to the surface of the waterproof layer, extending the yarns from the forefoot area to the heel area; overlapping and fixing the waterproof layer and the inner lining layer to form the upper body; and fixing a waterproof and breathable membrane to at least a portion of the outer surface of the waterproof layer to obtain the finished upper. This invention solves the problems of environmental pollution, performance degradation after washing, and easy pore expansion and water seepage in existing water-repellent upper treatments by combining the sewing and fixing of deformation-resistant yarns with fluorine-free waterproofing. It has the advantages of being environmentally friendly, providing long-lasting water repellency, and having strong deformation resistance.
Owner:ANTA (CHINA) CO LTD
Hybrid magnetic array current sensor and method of construction
ActiveCN120405204BAccurate acquisitionaccurate measurementManufacture of electrical instrumentsCurrent measurements only
The application relates to the technical field of electromagnetic measurement, and provides a hybrid magnetic array current sensor and a construction method. The hybrid magnetic array current sensor comprises a TMR array unit, a quantum current sensing unit, a data acquisition unit and a data fusion unit. The TMR array unit is used for converting sensed current magnetic field changes into electric signals to obtain first current data. The quantum current sensing unit is used for converting sensed quantum state signal changes into electric signals to obtain second current data. The data acquisition unit is used for acquiring the temperature of the TMR array and the output voltage of the TMR array under a reference magnetic field corresponding to the temperature. The data fusion unit is used for obtaining a sensitivity drift coefficient based on the temperature of the TMR array and the output voltage of the TMR array under the reference magnetic field corresponding to the temperature. The first current data is compensated according to the sensitivity drift coefficient to obtain compensated first current data. The compensated first current data and the second current data are fused to obtain fused current data.
Owner:STATE GRID SHANDONG ELECTRIC POWER CO MARKETING SERVICE CENT (MEASURING CENT)
Image splicing method and device, equipment, storage medium and program product
PendingCN121883253Aavoid elevationavoid continuityImage enhancementImage analysisComputer graphics (images)Radiology
The invention relates to an image splicing method and device, optical microscopic measurement equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: acquiring a first image and a second image to be spliced; determining first reference information corresponding to the first image and second reference information corresponding to the second image based on the target matching mode; based on the first reference information and the second reference information, respectively determining a first overlapping region in the first image and a second overlapping region in the second image; based on first height information corresponding to the first overlapping region and second height information corresponding to the second overlapping region, determining a morphology error between the first image and the second image; and based on the first overlapping region, the second overlapping region and the morphology error, splicing the first image and the second image to obtain a spliced image. By adopting the method, the image splicing effect can be improved.
Owner:CHOTEST TECH INC
A heterogeneous multirotor configuration with a single main rotor and partially tilted multiple slave rotors.
This invention discloses a heterogeneous multi-rotor layout with a single main rotor and partially tilted multiple slave rotors, relating to the field of unmanned aerial vehicle (UAV) design technology. It includes a large main rotor providing primary lift and n control rotors arranged around it, with some control rotors mounted horizontally and the rest tilted at a fixed angle. During steady-state flight, the anti-torsional torque of the main rotor is statically balanced by the horizontal component torque of the pull force from the tilted slave rotors. Attitude control of the UAV is achieved by differentially adjusting the rotational speeds of the control rotors, including pitch control, roll control, and yaw control. Pitch and roll control are achieved by differentially adjusting the rotational speeds of symmetrically positioned control rotors, while yaw control is achieved by differentially adjusting the rotational speeds between the horizontally mounted and tilted control rotor groups. This invention achieves a fusion of high aerodynamic efficiency and easy operation, effectively improving the UAV's endurance and flight performance.
Owner:BEIHANG UNIV
A grain condition cloud chart analysis method and system
This invention relates to the field of grain condition analysis technology and discloses a grain condition cloud map analysis method and system. By constructing the temperature and humidity fields inside the grain pile, a visualized grain condition cloud map is generated, transforming discrete sensor data into continuous isotherm distribution maps and color rendering maps. This allows warehouse management personnel to intuitively and quickly grasp the overall grain condition status, including temperature distribution, heat core location, and humidity distribution inside the grain pile. By matching the binary correspondence between isotherms and heat core areas, combined with dew point calculation and relative humidity change analysis during micro-airflow rise, the formation process of condensation and mold growth modes can be accurately identified, issuing early warnings before threats to grain storage safety occur. Compared to existing technologies that only issue alarms after temperature or humidity exceeds limits, this invention enables early detection and proactive prevention of potential grain condition safety hazards, effectively ensuring grain storage safety.
Owner:TIANJIN MINGLUN ELECTRONICS TECH
A variable frequency low voltage stress control system and its control method based on autonomous resonance
This invention discloses a variable frequency low-voltage stress control system and its control method based on autonomous resonance. The control system includes: a DC voltage source, a primary-side inverter unit, a secondary-side inverter unit, a primary-side resonant branch, a secondary-side resonant branch, a secondary-side rectifier unit, an energy storage branch, a filter capacitor, and a load. The DC voltage source is connected to the primary-side inverter unit; the energy storage branch is connected to the secondary-side inverter unit; the primary-side inverter unit is connected to the secondary-side inverter unit through the primary-side resonant branch; the secondary-side resonant branch is connected to the secondary-side rectifier unit; and the secondary-side rectifier unit is connected in parallel with the filter capacitor and the load. This invention not only reduces the voltage stress on the energy storage capacitor and related power devices, reducing the risk of device damage and extending the system's service life, but also improves the system's energy utilization efficiency without requiring additional energy-consuming absorption circuits, thus possessing significant engineering application value.
Owner:烟台哈尔滨工程大学研究院
A power distribution cabinet with fireproof and flame-retardant functions
ActiveCN120914627Breduce spreadavoid approachingSubstation/switching arrangement cooling/ventilationSubstation/switching arrangement casingsToxic gasGlass ball
The application relates to the field of power distribution cabinets, and discloses a power distribution cabinet with a fireproof and flame-retardant function, which comprises a protection assembly, the protection assembly is installed at the upper end of a main body, the protection assembly is used for cooling the cabinet body and inhibiting internal and external fire sources, the protection assembly mainly comprises an executing mechanism composed of mounting blocks, a piston plate, glass balls, springs and sealing plugs, the glass balls are red, the triggering temperature is 68 DEG C, the power distribution cabinet with the fireproof and flame-retardant function has the protection assembly, the probability of fire source overflow or internal spread is reduced, the generation of toxic gas is reduced, the external fire source can be extinguished while preventing the external fire source from approaching the cabinet body, internal fire source spread to the outside can also be prevented, nitrogen can dilute internal oxygen and toxic gas, and external fire extinguishing agents can be used after the fire extinguishing agents in the cabinet body are consumed, the external fire extinguishing agents are introduced and secondary protection is carried out.
Owner:HEBEI ANZHENG POWER TECH CO LTD
Gas turbine moving blade temperature anomaly monitoring and visualized analysis method and analysis system
PendingCN121958836ARealize dynamic classification recognitionSolve the problem of being unable to identify spatial continuity anomaliesKernel methodsThermodynamicsData set
The invention relates to a gas turbine moving blade temperature abnormity monitoring and visualized analysis method and system. The method comprises the steps that a real-time monitoring data set of a movable blade is obtained and input into an SVM anomaly classification model, and the SVM anomaly classification model outputs a data set classified according to the temperature; obtaining temperature abnormal points according to the classified data set; extracting position information in the temperature abnormal points, and performing clustering analysis; defining an area formed by the positions of three or more continuous clustering points as an ablative particle deposition area; and outputting the position information of the temperature abnormal points forming the ablative particle deposition area. Compared with the prior art, the method has the advantages that the time sequence characteristics of the ablated particle temperature can be effectively learned by adopting the SVM anomaly classification model, and the dynamic grading identification of the temperature is realized; through clustering analysis, temperature abnormity of at least three continuous measuring points can be identified, and accurate positioning of an ablation particle deposition overtemperature area is realized.
Owner:CHINA UNITED GAS TURBINE TECH CO LTD
AI-assisted vehicle evaluation scene library construction method and system
PendingCN121787426AThe construction process is objectiveimprove accuracyInternal combustion piston enginesSemantic analysisIndustrial engineeringKnowledge base
The invention discloses an AI-assisted vehicle evaluation scene library construction method and system, and relates to the technical field of vehicle testing. The method comprises the steps of obtaining user demand data; performing semantic analysis on the user demand data by using a pre-trained language processing model, and extracting a user demand tag; based on the user demand labels, constructing a label knowledge base; generating a vehicle evaluation scene description corresponding to the user demand based on the tag knowledge base; and screening the vehicle evaluation scene description, and constructing a vehicle evaluation scene library based on a screening result. According to the invention, intelligent, efficient and comprehensive construction of the vehicle evaluation scene library can be realized.
Owner:YANGTZE DELTA REGION INST OF TSINGHUA UNIV ZHEJIANG
An intelligent sterilization and disinfection linkage device in an elevator and a disinfection method
The application relates to the technical field of sterilization and disinfection devices, and discloses an intelligent sterilization and disinfection linkage device in an elevator and a disinfection method, which comprises an elevator mechanism, and further comprises an equipment shell; after liquid transmission, disinfectant reaches the inside of a hydraulic tank through an output pipe; at this time, the pulling chain is pulled by the sliding plate, the moving plate cuts off the liquid flow path of the atomizer, the top hydraulic tank is in a pressurized state; when the last passenger gets off, the screening plate loses pressure, the extension spring and the return spring release mechanical power, the small spring pulls the moving plate, the through hole of the moving plate is matched with the atomizer, the liquid in the hydraulic tank is sprayed into the elevator through the atomizer, the state of rapid disinfection is achieved, the sprayed liquid can suppress a large amount of bacteria floating in the air, and the effect of purifying air is achieved at the same time.
Owner:ZHEJIANG EXER INTELLIGENT MFG CO LTD
Interference image detection method and apparatus, electronic device, and storage medium
The technical scheme of the embodiment of the application discloses an interference image detection method and device, electronic equipment and a storage medium. The method comprises the following steps: inputting a target image into an image classification model to obtain an image category of the target image; acquiring at least one intermediate feature of the image classification model; performing influence degree regularity detection on the target image according to the image category and the intermediate features; and detecting whether the target image is an interference image according to the influence degree regularity detection result of the target image, wherein the interference image comprises an image to which category interference information is added. The technical scheme of the embodiment of the application avoids modifying or increasing the model, realizes the detection of the interference image by using the existing data of the image classification model, and improves the universality and accuracy of the interference image detection.
Owner:AGRICULTURAL BANK OF CHINA
Power control method, power converter and photovoltaic power generation system
PendingCN121966439Aavoid elevationReduce voltage stress riskBatteries circuit arrangementsDc-dc conversionControl powerControl theory
The embodiment of the invention provides a power control method, a power converter and a photovoltaic power generation system.The power control method is partially applied to the photovoltaic power generation system, and the photovoltaic power generation system comprises the power converter and a plurality of photovoltaic power generation units connected to the first direct current input side of the power converter. The method comprises the following steps: when the total output power of a plurality of photovoltaic power generation units exceeds a preset total power limit value, determining the power limit priority of each photovoltaic power generation unit according to the respective photovoltaic voltage of the plurality of photovoltaic power generation units; wherein the lower the photovoltaic voltage is, the higher the power limit priority of the corresponding photovoltaic power generation unit is; and limiting the output power of the plurality of photovoltaic power generation units according to the power limiting priority until the limited total output power does not exceed the total power limiting value. According to the embodiment of the invention, the photovoltaic power generation unit with low photovoltaic voltage can be preferentially limited, the DC bus voltage is prevented from rising in power limitation, and the stress risk of the power converter is reduced.
Owner:SHENZHEN ANKEXUCHUANG TECHNOLOGY CO LTD
A motor high-speed grinding head for a intaglio grinding machine
ActiveCN224390779Uavoid elevationAvoid emergency stopsLapping machinesLapping toolsElectric machineryMachine
The utility model relates to the technical field of gravure grinder, especially to a motor high -speed grinding head for gravure grinder, including the sliding installation in the grinding drive seat of gravure grinder, and grinding drive seat is provided with grinding assembly, and grinding drive seat is provided with the longitudinal movement's grinding module, grinding drive seat still is provided with counterweight system, and counterweight system includes counterweight block, and counterweight block can move longitudinally, and counterweight block and grinding mounting plate are connected with each other, motor high -speed grinding head when grinding to gravure roll, grinding assembly usually needs along the radial direction of gravure roll and moves to grind in different positions, when moving, grinding assembly, because the movable connecting piece is arranged between counterweight block and grinding mounting plate, counterweight block also moves correspondingly, and counterweight block forms the mechanical balance system through the weight of matching grinding assembly, offsets its gravity influence, avoids the lift speed instability or the jamming phenomenon of the power shortage, reduces the impact force when the buffer starts and stops.
Owner:DONGGUAN DONGYUN MASCH CO LTD
A tunnel primary support concrete spraying device
ActiveCN121519974BPlay a guiding roleavoid elevationUnderground chambersMeasurement devicesArchitectural engineeringStructural engineering
Owner:HUNAN ROAD & BRIDGE CONSTR GROUP +1
A method and system for optimizing the toughness performance of seamless steel pipes
The present application belongs to the technical field of steel pipe detection, and particularly relates to a seamless steel pipe toughness performance defect optimization method and system. The method compares the test output value with the preset comparison interval, identifies the test parameters that cause the test output value to deviate, and classifies the test parameters as positive parameters or negative parameters according to the deviation direction. The test parameters that cause the test output value to deviate are classified, the test parameters are determined as impact parameters or necessary parameters, the impact parameters are defined as optimization items, and the necessary parameters are defined as risk items. Key defects are identified, and the severity is quantitatively evaluated to provide a risk warning signal for production managers. The present application provides a data basis for exploring the causes of defects through identification and classification of defect causes, avoids indiscriminate treatment of all test parameters that cause deviation, improves the efficiency of problem diagnosis and solution, and realizes risk warning and active prevention.
Owner:ZHEJIANG NEW SORL AUTO PARTS CO LTD
Non-contact processing device and processing method
ActiveCN115415665Beasy to separateFast thinningLaser beam welding apparatusSolid structureElectromagnetic radiation
The present invention relates to a non-contact processing device and a processing method for performing a processing procedure on a solid structure. The non-contact processing device of the present invention provides energy to the solid structure with an electromagnetic radiation source, so as to cause the solid structure to generate a modification or a defect, i.e. to form a modified layer. The present invention further non-contact applies a separation energy to the solid structure with the modified layer with a separate energy source, so as to quickly separate or thin the solid structure from the modified layer due to the stress, structural strength, lattice pattern or hardness of the modified layer being different from other non-processing areas.
Owner:HIGHLIGHT TECH CORP