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Rural house structure optimization design method and system based on building information modeling
ActiveCN119442404Aensure reliabilityreduce wasteGeometric CADDesign optimisation/simulationStructure analysisGenetics algorithms
The invention discloses a rural house structure optimization design method and system based on building information modeling, and relates to the technical field of building structure analysis design, and the method comprises the steps: obtaining geographical climate data, building user demand data and construction condition data of a to-be-built rural house; determining a house design variable set according to the acquired data; randomly generating an initial solution according to the value range of each variable parameter in the house design variables to construct an initial population; performing individual optimization on the initial population by using a genetic algorithm, screening individuals according to fitness, performing iterative genetic evolution operation including crossover and variation, and finally determining an optimal individual; and inputting target values of various variable parameters indicated by the optimal individual into a BIM construction module to determine a target BIM model for the rural house. Therefore, genetic algorithm optimization and a BIM modeling technology are organically fused, and the structural safety, the economical efficiency, the construction efficiency and the intelligent level of rural house design are improved.
Owner:CHONGYI PLANNING & ARCHITECTURAL DESIGN INSTITUTE
Stability control method and device for electric energy quality control system
ActiveCN119518739AImprove economyImprove stabilitySingle network parallel feeding arrangementsReactive power compensationPower qualityTarget control
The invention discloses a stability control method and device for an electric energy quality control system. The method is characterized by comprising the following steps: extracting characteristic parameters of acquired three-phase data of a power grid, and determining system state characteristic data; performing system compensation parameter estimation on the power quality compensation system according to the system state characteristic data and the power grid three-phase data, and determining system compensation parameter estimation data; determining an optimal control parameter according to the system state characteristic data and the system compensation parameter estimation data; performing system control prediction on the power quality compensation system according to the system compensation parameter estimation data, and determining a real-time control quantity of the power quality compensation system; performing control operation on the electric energy quality compensation system according to the real-time control quantity, and determining a control operation result; and optimizing the optimal control parameter based on the control operation result to obtain a target control parameter, and determining a target compensation current instruction according to the target control parameter. Efficient control is achieved, and economical efficiency, energy efficiency and reliability are met.
Owner:YANGZHOU POWER SUPPLY BRANCH OF STATE GRID JIANGSU ELECTRIC POWER CO LTD +3
Frequency source synthesis system and method based on frequency agility radar
ActiveCN119675662Areduce in quantitycontrol volumeModulation transference by semiconductor devices with minimum 2 electrodesPulse automatic controlPhase noiseMicrowave
The invention discloses a frequency source synthesis system and method based on a frequency agility radar, and belongs to the technical field of microwave radio frequency, and the method specifically comprises the steps: generating a target clock signal, carrying out the frequency processing of the target clock signal to generate a frequency multiplication signal, and dividing the frequency multiplication signal into two clock signals through a power divider; performing frequency multiplication processing on one path of clock signal, taking the processed signal as a clock reference signal of a direct digital synthesizer, generating an analog signal according to the clock reference signal, and calibrating the analog signal as an output signal; performing frequency multiplication processing on the other path of clock signal, and taking the processed clock signal as a local oscillation signal of the frequency mixer; performing frequency conversion processing to obtain a frequency mixing signal, performing quadruplicated frequency processing on the frequency mixing signal, and calibrating the processed frequency mixing signal as a final output signal; according to the invention, the frequency source has the characteristics of low phase noise, rapid agility, fine resolution and miniaturization at the same time.
Owner:GUANGZHOU XINCHUANG HANGYU ELECTRONIC TECH CO LTD
Preparation method of waterproof layer in radio frequency chip and radio frequency chip structure
The embodiment of the invention provides a preparation method of a waterproof layer in a radio frequency chip and a radio frequency chip structure with a waterproof layer structure, and the method comprises the steps: carrying out the air gap etching and the first-stage waterproof layer etching at the same time through ingenious utilization of an inherent air gap preparation technology in a radio frequency chip preparation process; a first-stage waterproof layer gap is formed; after preparation of all subsequent interconnection layers is completed, second-stage waterproof layer etching is carried out until gaps of the first-stage waterproof layer are communicated, and finally a waterproof layer cavity is formed; therefore, a deep groove etching process in the prior art is avoided by utilizing a graded etching mode, the etching difficulty is reduced, the etching time is shortened, and the production efficiency is improved. And the preparation process of the air gap is an inherent process step in the preparation process of the radio frequency chip, so that no extra process is added, and the cost is effectively controlled.
Owner:GUANGZHOU ZENGXIN TECH CO LTD
Fine adjustment method and system for accurate parameters of pre-training language model
The invention discloses a fine tuning method and system for precise parameters of a pre-training language model. The method comprises the following steps: constructing a robust adapter; a plurality of constructed robust adapters are connected in series to form a robust adapter chain, and the maximum chain node is determined; preparing a weight of a pre-training language model and a data set of a corresponding task label; firstly, each robust adapter in the robust adapter chain is subjected to preliminary training, optimization and approximate fine tuning of parameters of the robust adapters; after the parameters of the robust adapter are approximately fine-tuned, the parameters are combined with the weight of the preorder frozen pre-training language model to complete calculation of a current robust adapter chain node, residual information used for next iteration is generated, and the parameters of the current robust adapter are updated at the same time; and carrying out iterative training, updating residual information until the number of iterations is equal to the maximum node of the robust adapter chain, and obtaining the optimal weight of the pre-training language model and the optimal parameters of the robust adapters, so that more stable convergence and simpler hyper-parameter adjustment can be provided.
Owner:ANHUI UNIV
Connecting joint adopting UHPFRC (Ultra High Performance Fiber Reinforced Concrete) lap joint for vertical steel bars of prefabricated wall panel
PendingCN119553822ASimple construction processLower connection costsWallsBuilding reinforcementsClassical mechanicsLap joint
The invention discloses a connecting joint for vertical steel bars of a prefabricated panel by adopting UHPFRC (Ultra High Performance Fiber Reinforced Concrete) lap joint, and belongs to the technical field of building structures. The connecting joint comprises a first prefabricated wall panel and a second prefabricated wall panel, wherein the first prefabricated wall panel comprises a connecting hole and a first connecting steel bar; the second prefabricated wallboard comprises second connecting steel bars, the first connecting steel bars and the second connecting steel bars are arranged in the connecting holes at intervals, and UHPFRC is poured into the connecting holes. The connecting holes are formed in the horizontal joints of the bottoms or the tops of the prefabricated wall panels, the connecting steel bars are arranged in the connecting holes, the connecting steel bars extending out of the prefabricated wall bodies adjacent to the horizontal joints are in single-row or double-row lap joint in the connecting holes by pouring the UHPFRC, and therefore formworks and sleeves / casing pipes are omitted, and the construction cost is reduced. The construction technology of vertical steel bar connection in the fabricated shear wall is obviously simplified, and the connection cost is reduced.
Owner:HUNAN UNIV +1
Dual-computer hot standby system and dual-computer switching method
ActiveCN119270707AGuaranteed reliabilityGuaranteed stabilityProgramme controlComputer controlReflective memoryEthernet
The invention belongs to the technical field of dual-computer hot standby, and discloses a dual-computer hot standby system and a dual-computer switching method. The dual-machine hot standby system comprises a machine A and a machine B which are hot standby for each other, and an internal switch; one of the A machine and the B machine is a host used for performing data communication with an external system, and the other one is a slave used for backing up data of the host; the machine A and the machine B are connected with an external system through respective external communication interfaces; and the machine A and the machine B are connected with respective reflective memory cards through optical fibers to serve as main synchronization channels, and are connected with an internal switch through the Ethernet to serve as a standby synchronization channel through respective internal communication network ports, so that data synchronization and backup between the machine A and the machine B are realized. The invention further provides a corresponding switching method. According to the invention, the reliability and stability of long-time uninterrupted operation of the dual-computer hot standby system can be improved, the switching recovery time is shortened, and the requirements of different network environments and application scenes can be met.
Owner:HUAZHONG UNIV OF SCI & TECH +1
Submarine cable protection device and installation method thereof
ActiveCN119627776Alimit bendingAchieve anti-bending protectionElectrical apparatusStructural engineeringMechanical engineering
The invention discloses a submarine cable protection device and an installation method thereof. The submarine cable protection device comprises a plurality of pile casing assemblies which are connected in a nested mode. Each pile casing assembly comprises a sleeve, nested connection structures connected to the two ends of the sleeve and an annular flow guide structure arranged on the outer surface of the sleeve, and all the sleeves and the nested connection structures are of hollow structures and used for submarine cables to penetrate through in the axial direction. Each nested connection structure comprises a mother end and a son end, and the mother ends and the son ends connected with the same sleeve are respectively used for being in nested connection with the corresponding son ends and mother ends connected with different sleeves; each mother end is composed of two symmetrical semispherical mother end units, and each son end is composed of two symmetrical semispherical son end units; each annular flow guide structure comprises an annular base and a plurality of flow guide plates with spaced protrusions, the outer surfaces of the corresponding sleeves are sleeved with the annular bases, the flow guide plates are fixed to the corresponding areas of the annular bases, and the annular bases are of an openable structure. The invention aims to realize anti-bending protection of the submarine cable.
Owner:SUN YAT SEN UNIV
Preparation method of foam composite self-floating sponge and photo-thermal interface evaporation application of foam composite self-floating sponge
ActiveCN119570107ARealize functionlow priceGeneral water supply conservationWater/sewage treatmentPhysical chemistryEngineering
The invention discloses a preparation method of foam composite self-floating sponge and photo-thermal interface evaporation application of the foam composite self-floating sponge. In the foaming process of preparing the porous sponge, the step of adding hydrophobic foam particles in situ is introduced, and the composite material which can rapidly absorb and guide water and has the self-floating characteristic is prepared through a one-step method. The composite material disclosed by the invention can simultaneously meet the dual functions of water absorption, water diversion and self-floating. When the composite material is used as a substrate material of a photo-thermal interface evaporation system, a spontaneous, continuous and stable outdoor evaporation process can be ensured. Under the condition of simulating 1 solar radiation (1000 W / m < 2 >), the technology realizes the water evaporation rate up to 1.86 kg.m <-2 >. H <-1 >; and under natural sunlight irradiation (about 435 W / m < 2 >), the average sewage evaporation rate reaches 1.70 kg.m <-2 >. H <-1 >, and the daily average sewage evaporation capacity is 12.0-14.0 kg.m <-2 >.
Owner:ANHUI UNIV
High-pressure axial plunger pump friction pair oil film characteristic testing device and method
PendingCN119508208AImprove test accuracycost controlPump testingPositive displacement pump componentsDynamic balanceData acquisition
The invention discloses a high-pressure axial plunger pump friction pair oil film characteristic testing device and method, and belongs to the technical field of hydraulic elements. Comprising a motor serving as a power source, an external oil source system, a data acquisition card and an industrial personal computer, the motor is connected with a flow distribution pair testing part and a plunger pair testing part through a main shaft, in a flow distribution pair testing device, the actual pump operation condition is simulated through a flow distribution pair swash plate assembly capable of replacing different inclination angles, and the testing precision of a flow distribution pair oil film is improved; in the plunger pair testing device, a plunger pair swash plate with different inclination angles and dynamic balance balancing and a symmetrically arranged long plunger body plunger pair structure can be replaced, and the whole device is connected with a flow distribution pair testing device through a main shaft and a flow distribution piece, so that two friction pairs can be tested at the same time; the plunger pair testing device is simple and reliable in overall structure, parts are convenient to replace, and the detection cost is low.
Owner:CHINA UNIV OF MINING & TECH
In-situ growth PEMEC anode, preparation method thereof and application of PEMEC anode in PEM hydrogen production
ActiveCN119265597Aenhanced interactionStrong expandabilityCellsMetallic material coating processesIridiumReagent
The invention provides an in-situ growth PEMEC anode, a preparation method thereof and application of the in-situ growth PEMEC anode in PEM hydrogen production. The preparation method comprises the following steps: soaking a Ti substrate in an etching reagent solution to obtain a Ti-F substrate; the Ti-F substrate is placed in an alkaline solution for a hydrothermal reaction, and a Ti-OH substrate is obtained; the surface of a Ti-OH substrate is coated with a metal source, and the in-situ growth PEMEC anode is obtained through drying and calcination. The invention also provides the in-situ growth PEMEC anode prepared by the method and application of the in-situ growth PEMEC anode in PEM hydrogen production. According to the invention, the carrier is activated under a mild condition, and an inert TiO2 film on the surface of the Ti substrate is changed into an active Ti-OH species, so that chemical bonding between the Ti substrate carrier and metal catalytic layers such as iridium, gold and the like is realized, the interaction between the carrier and the catalytic layers is enhanced, and the stability of the anode is effectively improved.
Owner:TSINGHUA UNIVERSITY
Through hole plug-in type fin and radiator provided with through hole plug-in type fin
ActiveCN222352979Uincrease or decrease quantityEasy to processLaminated elementsTubular elementsMechanical engineeringPhysics
The utility model belongs to the technical field of radiators, and particularly relates to a through hole plug-in type fin and a radiator provided with the through hole plug-in type fin. The problems that disassembly and assembly are inconvenient, use is not flexible, and the machining cost is high are solved. The through hole plug-in type fin comprises a strip-shaped plate-shaped fin body, plug-in holes used for being connected with flat pipes in a plug-in mode are formed in the fin body in a penetrating mode, and the fin body is further provided with a separation structure used for limiting the minimum distance when the fin body is arranged in a stacked mode. Detachable connection is achieved by inserting the flat pipes into the inserting holes of the fin body, disassembly and assembly are convenient, and good flexibility is achieved; meanwhile, only processing into a strip-shaped plate is needed, bending processing into a broken line shape or a wavy line is not needed, and the processing cost is reduced; and the arrangement of the separation structure also prevents the adjacent fins from being attached too close to influence the heat dissipation effect.
Owner:浙江三可热交换系统有限公司
Hot compression crack repairing method capable of replacing hot isostatic pressing process
ActiveCN119304187Aachieve closureaccurately determineAdditive manufacturing apparatusIncreasing energy efficiencyThermal compressionMechanical engineering
The invention relates to a hot compression crack repairing method capable of replacing a hot isostatic pressing process, which comprises the following steps: collecting melting point information of an alloy sample, and determining a target temperature of hot compression; selecting a plurality of groups of different stress / strain parameters at a target temperature to carry out a thermal compression experiment, and carrying out mutual comparison; performing metallographic sample preparation, observing and counting crack pore conditions, and judging whether the cracks are obviously closed or not; if yes, preliminarily determining a thermal compression parameter, and if not, adjusting a stress / strain parameter in a thermal compression process until the crack is obviously closed; tilting the sample for hot compression again, and judging whether the crack is closed or not; if yes, finally determining a hot compression parameter, and if not, continuing to adjust; and performing thermal compression on the alloy part by using the finally determined thermal compression parameters to realize crack repair. Compared with the prior art, the method has the advantages that the obtained stress / strain parameters are ensured to be accurate and effective through adjustment and verification of a thermal compression experiment, so that complete closing of the crack is realized under two thermal compression processes.
Owner:SHANGHAI JIAOTONG UNIV
Simulation calculation method for successive collapse of hull structure in waves
PendingCN119312489AHigh precisionGuaranteed accuracyGeometric CADSustainable transportationHull structureStress distribution
According to the simulation calculation method for successive collapse of the hull structure in the waves, a set of load-structure integrated numerical analysis method is summarized, and the method is different from a method for calculating an external load and structural strength separately in a traditional method. On one hand, the hull ultimate strength calculation precision is improved, and on the other hand, the hull structure successive collapse characteristics are more truly presented. Firstly, a theoretical basis and a calculation process of the method are introduced; then, in order to verify the feasibility and rationality of the method, a series of simulation analysis of successive collapse of the hull structure in waves is carried out according to the method, and the ultimate strength of the hull structure and the characteristics of stress distribution, deformation and the like in the successive collapse process are obtained. The result shows that the load-structure integrated numerical analysis method is reasonable and feasible, can be used as a simulation calculation method for successive collapse of ship body structures of various ships, and has important application value.
Owner:DEEP SEA TECH & SCI TAIHU LAB LIANYUNGANG CENT
Partition targeted control method based on power exponential deformation distribution rule of fractured surrounding rock
InactiveCN119618826Acost controlMining devicesMaterial strength using tensile/compressive forcesField testsRock bolt
The invention discloses a partition targeted control method based on a power exponential deformation distribution rule of fractured surrounding rock. Theoretical calculation is carried out based on roadway data, FDEM simulation is matched with field testing, and the range of the surrounding rock loosening circle is determined; through multi-point displacement meter monitoring and FDEM simulation calculation, roadway surrounding rock deformation distribution data are obtained, and curve fitting is carried out on a roadway surrounding rock deformation distribution rule based on a power exponential function; in combination with the two-eight distribution property of a power exponential function, secondary partitioning is carried out on the loose circle range according to the surrounding rock deformation, and surrounding rock deformation difference sources and dominant factors are distinguished; and the structure and the grouting radius of the surrounding rock targeted control anchor rod (cable) in different directions of the roadway are determined, and zoned targeted control over the surrounding rock of the roadway is achieved. According to the method, surrounding rock in the range of a loose circle is divided into a crushing and swelling deformation area and a shearing and sliding area according to the deformation amount of the broken surrounding rock, the surrounding rock control mode or the anchor rod (cable) structure, the arrangement length and the arrangement direction are adjusted in a targeted mode, and partition targeted control over the roadway surrounding rock is achieved.
Owner:HEBEI UNIV OF ENG
Single-motor double-shaft electric three-station rapid isolation mechanism and working method thereof
PendingCN119673696Areduce limitationsImprove stabilityContact driving mechanismsContact operating partsElectric machineControl theory
The invention relates to a single-motor double-shaft electric three-station rapid isolation mechanism and a working method thereof.The single-motor double-shaft electric three-station rapid isolation mechanism comprises a mounting table, the mounting table comprises a bottom-layer substrate, a middle-layer substrate and a top-layer substrate, and the top-layer substrate and the middle-layer substrate are provided with an electric isolation mechanism and a manual isolation mechanism with the same rotating shaft respectively; the electric isolation mechanism and the manual isolation mechanism respectively drive a first manual shaft or a second manual shaft to drive a main output shaft to rotate through a motor and a manual operation, and drive a large spring part to rotate through meshing transmission so as to realize three-station switching-on and switching-off. By arranging the electric isolation mechanism and the manual isolation mechanism, switching-on and switching-off of the three-station machine switch are electrically and manually controlled respectively, the motor has high stability and reliability, long-time stable operation can be achieved, and manual control can be flexibly operated according to actual conditions.
Owner:CHANGZHOU LIWEI AUTOMATION TECH CO LTD
Insulation detection circuit and insulation detection method for electrical system
PendingCN119414186AHigh precisionimprove accuracyTesting dielectric strengthVery high resistance measurementsElectrical resistance and conductanceHemt circuits
The invention discloses an insulation detection circuit. The insulation detection circuit comprises a first sampling resistor group comprising a plurality of first sampling resistors with different resistance values; one end of the third switch is connected with the other end of the first sampling resistor, and the other end is connected with an anode of a high-voltage power supply unit or a low-voltage power supply unit of the electrical system; comprising a plurality of second sampling resistors with different resistance values; one end of the fourth switch is connected with the other end of the second sampling resistor, and the other end is connected with the cathode of the high-voltage power supply unit or the low-voltage power supply unit; the first divider resistor is connected in series with the first sampling resistor; the second divider resistor is connected in series with the second sampling resistor; and the control unit is used for determining the accessed first sampling resistor and second sampling resistor and the first voltage and the second voltage at the two ends of the sampling resistor so as to determine the insulation condition between the high-voltage power supply unit and the low-voltage power supply unit. The circuit can improve the insulation detection precision. The invention further discloses an insulation detection method.
Owner:SHANGHAI XUANYI NEW ENERGY DEV CO LTD
Steel truss arch short stand column bent cap integrated structure and construction method
PendingCN119266082ALower the setting heightImprove welding qualityTruss-type bridgeBridge structural detailsClassical mechanicsStructural engineering
Owner:CHINA RAILWAY ERYUAN ENGINEERING GROUP CO LTD
Converged communication method for multi-system wireless intercom system
ActiveCN119676591Aensure interoperabilityGuaranteed interoperabilityConnection managementBroadcast service distributionComputer hardwareEmbedded system
The invention discloses a converged communication method for a multi-system wireless intercom system, which relates to the technical field of communication and comprises the following steps: acquiring at least one intercom system adopted by the wireless intercom system; obtaining at least one interphone set; acquiring a communication flow distribution condition of the wireless intercom system; obtaining an interphone supplementary set; performing parameter setting on the digital-analog compatible interphones in the interphone supplementary set; establishing a corresponding relationship between the first interphone and the second interphone; and carrying out compatible communication on the first interphone and the second interphone. The interphone supplementary set is obtained by obtaining the communication flow distribution condition of the wireless intercom system, parameter setting is carried out on the digital-analog compatible interphones in the interphone supplementary set, compatible communication is carried out on the first interphone and the second interphone, interphones of different systems can be communicated and intercommunicated, and the intercommunication efficiency is improved. And it is ensured that the number of the arranged transferred digital-analog compatible interphones is as small as possible.
Owner:ZHONGRUIKE TECH CO LTD
Novel magnesium alloy low-pressure anti-gravity casting machine
ActiveCN119525469AGuarantee production efficiencyfast shippingMould handling equipmentsCrucibleMechanical engineering
The invention discloses a novel magnesium alloy low-pressure anti-gravity casting machine, which relates to the technical field of low-pressure magnesium alloy casting, and comprises a main body mechanism, a crucible furnace part trolley running mechanism, a crucible furnace part trolley lifting mechanism, a mold part trolley running mechanism and a mold part pressing plate mechanism, the main body structure and the crucible furnace part trolley running mechanism are both installed in a preset foundation, the crucible furnace part trolley running mechanism is located below the main body structure, the mold part trolley running mechanism is installed on the ground surface and located in the middle of the main body structure, and the crucible furnace part trolley lifting mechanism is installed in the middle of the main body structure. The mold part pressing plate mechanism is mounted at the top of the main body mechanism; the main body mechanism plays a role in positioning and supporting; and the crucible furnace part trolley running mechanism and the mold part trolley running mechanism can quickly convey the crucible furnace and the mold to a designated place, and can alternately transport and continuously produce, so that the production efficiency can be guaranteed.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES
Special material for biodegradable mulching film, mulching film and preparation method of mulching film
PendingCN119570212Acontrol degradation rateguaranteed performanceClimate change adaptationPlant protectionPlastic mulchHeat conservation
The invention relates to a biodegradable mulching film special material, a mulching film and a preparation method of the mulching film. Biodegradable materials such as PBAT, PLA and PBS are adopted, PBAT is used as a main material, and the cost is reduced through reasonable proportioning. Low-cost raw materials such as black master batches and talcum powder and additives such as a lubricant and an anti-hydrolysis agent are added, so that the cost is further reduced while the performance of the mulching film is ensured. The degradation speed of the mulching film can be controlled by adjusting the material ratio and is matched with the growth cycle of crops. The black mulching film has good heating and heat preservation effects and inhibits growth of weeds. The talcum powder, the antioxidant, the anti-ultraviolet agent and the like are added, so that the physical properties of the mulching film are improved, the water-retaining property, the tensile strength and the like are improved, PBAT is enhanced, and the production cost is reduced. The compatilizer improves the compatibility of the raw materials and improves the performance of the mulching film. And the nucleating agent improves the crystallization property of the mulching film, and improves the transparency, glossiness and impact resistance. On the whole, the performance of the mulching film is guaranteed, meanwhile, the cost is reduced, and the durability and the tear resistance are improved.
Owner:XINJIANG BLUE RIDGE TUNHE CHEM IND JOINTSTOCK +1
A lifting and turning pile hoist for offshore wind power pipe piles
ActiveCN118850955BImprove stabilityrelieve pressureLoad-engaging elementsMarine engineeringElectrical battery
The present invention relates to the technical field of wind power pipe pile lifting, and discloses a lifting and turning pile hoist for offshore wind power pipe piles, comprising a shell, a top plate fixedly connected to the top of the shell, a battery pack body fixedly connected to the top of the top plate, and a first control arranged inside the shell. Through the design of an active positioning mechanism, after the device is placed parallel to the inside of the pipe pile, an electric hydraulic rod performs a top-pushing control on the first control block, prompting the first control block to push and control the first trapezoidal plate. At this time, the first trapezoidal plate moves horizontally until the first bonding plate is tightly attached to the inner wall of the pipe pile. After the control plug plate passes through the T-shaped plate, the stability of the first control block can be improved to reduce the pressure of the electric hydraulic rod to maintain the bonding plate tightly attached to the inner wall of the pipe pile, so that the pipe pile can maintain a stable posture during the turning and lifting process, and will not be unhooked, thereby ensuring stability and safety.
Owner:张家港市国恒装备有限公司
Half-piece telescopic piece taking mechanism
ActiveCN222433296Ureduce in quantitycost controlConveyorsConveyor partsDrive shaftElectric machinery
The utility model discloses a half-piece telescopic piece taking mechanism which comprises a bottom mounting plate, a channel, a telescopic air cylinder, a connecting piece, a telescopic plate, a variable pitch winding, a conveying belt and a motor, the channel is formed in the middle of the bottom mounting plate, and the telescopic air cylinder is arranged below the bottom mounting plate along with the channel. A cylinder sliding block on the telescopic cylinder is arranged in the channel and bears a connecting piece, a telescopic plate is horizontally erected on the connecting piece, the front edge of the telescopic plate, the side face of the connecting piece and the front end and the rear end of the bottom mounting plate are provided with a left variable-pitch winding and a right variable-pitch winding which are connected through a transmission shaft in parallel, and a conveying belt is tensioned on the variable-pitch windings; and the transmission shaft is externally connected with a motor. Through the mode, the half-piece telescopic taking mechanism provided by the utility model adopts one air cylinder to simultaneously control two groups of variable pitch windings to stretch out and draw back, and adopts one motor to synchronously drive, so that the scale of equipment is reduced, the number of parts is reduced, and the cost of the equipment is controlled.
Owner:SUZHOU YIHEDA AUTOMATION TECH CO LTD
Sprayed concrete surface layer cracking repairing construction method
PendingCN119352788AGuaranteed repair qualitycost controlBuilding repairsBuilding material handlingShotcreteArchitectural engineering
The invention relates to the technical field of tunnel construction, in particular to a construction method for repairing cracking of a sprayed concrete surface layer. Comprising the following steps: S1, observing a to-be-repaired crack, and carrying out primary treatment on the to-be-repaired crack; s2, measuring the size of the crack to be repaired after primary treatment, and preparing a repairing material and equipment for repairing construction; s3, repairing the crack to be repaired; and S4, maintaining the repaired area of the repaired crack to be repaired. The method not only provides a slope crack repairing method, but also is convenient to implement and has a light flooding application effect.
Owner:ANHUI SANJIAN LUXI ENG CO LTD +1
Alternating current porcelain insulator and preparation method thereof
PendingCN119613088Agood insulationGuarantee running stabilityCeramic materials productionClaywaresBorideHexagonal boron nitride
The invention provides an alternating current porcelain insulator and a preparation method thereof, raw materials in a specific proportion are adopted to prepare a green body, and the green body comprises modified kaolin, nano zirconium boride, hexagonal boron nitride, rare earth doped zirconium silicate, a composite binder and a fluxing agent. The green body is of an umbrella skirt structure and is provided with 3-5 umbrella skirts, the height difference of the adjacent umbrella skirts is gradually increased, and chamfers are arranged on the edges. Wherein the modified kaolin is subjected to specific modification treatment, and the rare earth doped zirconium silicate is obtained through high-temperature calcination, so that the insulating property is enhanced. And the composite binder and the fluxing agent are used for optimizing the green body forming performance and reducing the sintering temperature respectively. The preparation method comprises the steps of mixed pulping, iron removal, granulation forming and surface treatment, ultrasonic concussion is adopted in the mixed pulping process to promote uniform mixing, magnetic separation is conducted twice in the iron removal process, a cold isostatic pressing technology is adopted in granulation forming, and the finally obtained product has optimized mechanical strength and insulation performance and is suitable for an alternating current system. And the cable can bear severe weather conditions and mechanical stress.
Owner:JIANGXI LIHONG ELECTRIC PORCELAIN MFG CO LTD
Lottery drawing method based on multi-dimensional portrait label of platform user
PendingCN119228440AImprove experienceImprove targetingDigital data information retrievalCommercePersonalizationEngineering
The invention relates to the field of lottery drawing, in particular to a lottery drawing method based on platform user multi-dimensional portrait labels. The method comprises two parts of early-stage data preparation and later-stage lottery drawing. According to the data preparation part, platform user multi-dimensional portrait labels are established, lottery drawing rules are formulated according to label grouping, and corresponding prizes and winning probabilities are configured; and in the lottery drawing part, a winning rule is matched through the lottery drawing user group, and then a winning result is calculated. According to the method, a multi-dimensional and refined portrait label is created for each user. Personalized lottery drawing rules are made according to the portrait labels of the users, and prize types, prize numbers and corresponding prize winning probabilities are configured. The lottery drawing method is more diversified, the user experience is improved, and the credibility and attraction of the activity are also enhanced.
Owner:SHANGHAI CREATE FRAME SOFTWARE CO LTD
High-precision low-cost seamless positioning system and method suitable for intelligent motor sweeper
PendingCN119492374AHigh positioning accuracyprecise positioningNavigation by speed/acceleration measurementsSatellite radio beaconingRadarProcessing element
The invention discloses a high-precision low-cost seamless positioning system and method suitable for an intelligent sweeper. The invention provides a high-precision low-cost seamless positioning system and method suitable for an intelligent sweeper. The system comprises a three-dimensional laser radar, a GNSS, an IMU and a data processing unit. According to the method, dynamic and static states of a multi-source sensor are classified, GNSS and IMU data are combined in a dynamic state to perform pre-integration processing through extended Kalman filtering, positioning is performed by depending on a three-dimensional laser radar SLAM in a static state, and then the positioning precision is improved through an information fusion technology. And the data processing unit classifies and processes data according to the motion state of the sweeper and monitors and adjusts strategies in real time. The method effectively solves the problem of high-precision low-cost seamless positioning of the intelligent sweeper in different scenes, improves the sweeping efficiency and stability, and is suitable for the field of positioning and navigation of similar equipment such as the intelligent sweeper.
Owner:YANGZHOU JINWEI ENVIRONMENTAL PROTECTION TECH CO LTD
Tube nest cleaning device
ActiveCN222175278Uefficient cleaningSafety and environmental cleanup workHollow article cleaningGas passingMechanical engineering
The utility model discloses a tube nest cleaning device which comprises a brush tube with a ventilation cavity and a brush body connected to the first end of the brush tube. The first end and the second end of the brush pipe are communicated through the ventilation cavity, and the second end of the brush pipe is suitable for being connected with an external air source; at least one air outlet hole is formed in the portion, close to the first end, of the brush pipe, a spiral brush head is arranged on the peripheral wall of the brush body, and the air outlet hole and the brush head have the same rotating direction. The outer diameter of the brush head is not smaller than that of the brush pipe, and the first end of the brush pipe and the brush body are suitable for extending into an inner cavity of the tube nest. By means of pre-cleaning of the brush head, powder attached to the inner wall of the tube nest is brushed to be loose, gas conveyed from the outside is synchronously pressed into an inner cavity of the tube nest through the gas outlet holes, high-pressure gas flow passes through a spiral channel formed by the spiral brush head and the inner wall of the tube nest, powder in the tube nest is fully blown out, and purging of the inner cavity of the tube nest is achieved. The process is efficient, high in quality, safe and environmentally friendly, and the cost can be effectively controlled.
Owner:CHONGQING FEIHUA ENVIRONMENTAL SCI & TECH CO LTD
Method for predicting production electricity consumption of factory, control device and storage medium
The embodiment of the invention provides a method for predicting factory production electricity consumption, a control device and a storage medium, and belongs to the technical field of factory energy management. The method comprises the following steps: acquiring historical power consumption data of each power consumption unit; determining the correlation between the historical electricity consumption and the electricity consumption influence factors; based on the determined correlation, determining a power utilization quantitative analysis strategy of each power utilization unit through the historical power utilization amount and the value of the power utilization influence factor; and predicting the production power consumption of each power consumption unit and the production power consumption of the factory through the power consumption quantitative analysis strategy of each power consumption unit. According to the embodiment of the invention, the corresponding power consumption quantitative analysis strategy is determined through the correlation between the power consumption and the power consumption influence factors, so that the factory production power consumption in days, months, years and the like can be accurately predicted. And the power utilization energy cost of the production line can be effectively managed and controlled, energy key points and waste points can be identified, and energy conservation and consumption reduction actions can be carried out in a targeted manner.
Owner:BEIJING FOTON CUMMINS ENGINE
Automatic multi-station last slipping machine
The invention relates to the technical field of shoemaking equipment, in particular to an automatic multi-station last slipping machine which comprises a machine frame and a control system used for controlling the last slipping machine to work, and the machine frame is provided with a last fixing assembly used for containing shoes to be subjected to last slipping and a last slipping assembly used for pushing the shoes on the last fixing assembly away from shoe trees. The number of the last fixing assemblies is at least two, all the last fixing assemblies are arranged in front of the last slipping assembly side by side, and the rack is further provided with a driving mechanism used for driving the last slipping assembly to move back and forth in front of all the last fixing assemblies. According to the shoe last slipping machine, the multiple shoe last fixing assemblies are arranged in the rack, when the shoe last slipping machine works, the shoe last slipping assemblies move back and forth in front of the shoe last fixing assemblies through the driving mechanism, shoe last slipping operation of three stations can be achieved through one shoe last slipping assembly, and the equipment cost and the equipment occupied area are controlled to the maximum extent while the working efficiency of a production line is improved.
Owner:广东胜大科技有限公司