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Method for changing data frame length, electronic device, and storage medium
ActiveCN118677567Bguaranteed costGuaranteed payloadComputer hardwareElectrical and Electronics engineering
Owner:ZTE CORP
Tube-type electric precipitator
The utility model discloses a tubular electric tar precipitator relates to industrial waste gas treatment equipment technical field, it includes casing, inlet pipe, sedimentation pipe subassembly, corona pole, sedimentation pipe subassembly contains a plurality of sedimentation pipes, still includes upper head, lower head, airflow equalizer, tar collection tank, drain pipe, heating jacket and sealing door, and the gas that waits for processing enters casing through inlet pipe, is evenly distributed to each sedimentation pipe by airflow equalizer, under the electric field effect that corona pole generates, and tar is adsorbed in the inner wall of sedimentation pipe, and then is collected to tar collection tank, and heating jacket prevents tar solidification, and is discharged through drain pipe, the utility model discloses has improved tar trapping efficiency and equipment stability, and the practicality is strong, is suitable for industry popularization.
Owner:JIANGSU QINGFENG ENG GRP CO LTD
A design method for rigid pile composite foundation structure in a region with deep melting interlayer
PendingCN122113209Aunderstanding physicsUnderstand mechanicsGeometric CADDesign optimisation/simulationFreeze thawingGround temperature
The application discloses a kind of deep melting interlayer development area rigid pile composite foundation structure design method, it is related to rigid pile composite foundation field, including the following steps: step one, in the existing rigid pile bearing capacity calculation process, front-end increase subgrade-ground temperature field analysis;Step two, increase groundwater analysis;Step three, determine the compression modulus of the soil layer of seasonal freeze-thaw layer, (water-rich) melting interlayer, permafrost layer, bearing capacity characteristic value, check the single pile bearing capacity characteristic value of different positions in the cross section of roadbed using different pile length, pile diameter, pile body stiffness material;Step four, carry out zoned unequal design, adjust pile length, pile diameter, pile body stiffness, so that the range of all pile single pile bearing capacity characteristic values in cross section is lower than design allowable value.The application effectively optimizes pile foundation design, reduces material waste, reduces engineering cost, while ensuring the safety and stability of structure.
Owner:RES INST OF HIGHWAY MINIST OF TRANSPORT
End-to-end oil business knowledge graph construction method based on large language model
ActiveCN121660038Bquick buildFast dynamic updatesSemantic analysisText processingLinguistic modelTheoretical computer science
The application relates to an end-to-end petroleum business knowledge graph construction method based on a large language model, which comprises the following steps: acquiring multi-source data in a petroleum business field to form rich corpus information; constructing a knowledge extraction module, designing a petroleum business field special prompt template, extracting and generating input data under instruction prompts by using a large language model, and outputting entity relationship triple knowledge structure; constructing a knowledge consistency verification module, introducing a thinking chain reasoning technology and a self-reflection mechanism, and performing correction and optimization; constructing a knowledge storage and management module, automatically importing triple knowledge data into a graph data system, establishing a multi-dimensional index structure, and completing preliminary establishment of a knowledge graph; and constructing a knowledge updating and feedback learning module, realizing dynamic evolution and self-adaptive updating of the knowledge graph. The application can realize rapid construction and dynamic updating of a petroleum business field knowledge graph at a low cost.
Owner:SANYA MARINE OIL & GAS RESEARCH INSTITUTE NORTHEAST PETROLEUM UNIVERSITY
An environment perception and data backhaul apparatus and method thereof
The application relates to an environment sensing and data back transmission device, which comprises a data acquisition module for acquiring accurate images and point cloud data of a disaster area of infrastructure; a multi-path transmission module for transmitting the data collected at a low altitude back to a ground server; a post-disaster evaluation and reconstruction module for generating disaster evaluation, disaster risk heat map and three-dimensional model of a disaster area, and planning emergency treatment measures and material allocation. The three-dimensional reconstruction technology and multi-link transmission technology are used to realize that a UAV quickly and accurately acquires disaster area data and generates a three-dimensional model, and promote the intellectualization of disaster detection.
Owner:BEIJING JIAOTONG UNIV
Comprehensive energy system for zero-carbon park
PendingCN121961478AImplement multi-level conversionRealize cascade utilizationForecastingOffice automationIntegrated energy systemProcess engineering
The invention relates to the technical field of zero-carbon parks, in particular to a comprehensive energy system for a zero-carbon park, which comprises an energy production module, a multi-energy conversion and storage module, an intelligent management and control module, a user load module and a carbon capture and utilization unit. Multi-energy complementation and long-time energy storage can be achieved, reliable supply of zero-carbon energy is guaranteed, the overall efficiency and the energy utilization rate of the system are improved, resource cyclic utilization, multi-time scale optimization and multi-element load interaction are achieved, optimal economic dispatching and hydrogen energy multi-element utilization are achieved, and multiple guarantees and operation toughness are provided; the data uplink gateway ensures that source data is real and cannot be tampered, meanwhile, short-term temperature fluctuation caused by renewable energy source fluctuation or load change of a heat supply network can be effectively restrained, continuous and stable heating / cooling service is provided for users, and the energy consumption quality and comfort of a park are remarkably improved.
Owner:NANJING YAPAI SOFTWARE TECH CO LTD
An improved method for intelligent prediction of a formation model by machine learning and related devices
PendingCN122506618AIncrease the number of iterationsGuaranteed generalization ability
This invention discloses an improved machine learning-based intelligent prediction method for stratigraphic models and related equipment. By fusing depth-aligned high-frequency active seismic source data and low-frequency passive seismic source data, a multi-dimensional complementary source feature vector is constructed, significantly improving the vertical resolution and deep penetration capability of stratigraphic prediction. A genetic algorithm is used to globally search and optimize the network parameters of the convolutional neural network. Combining binary encoding and genetic operations effectively avoids the pitfalls of traditional gradient descent methods, which are prone to getting trapped in local optima, thus improving the globality and stability of model parameter optimization. Through iterative fitness verification and threshold determination, the optimal network parameters are adaptively determined without manual intervention, significantly reducing the cost of hyperparameter tuning while effectively ensuring the generalization performance of the prediction model. The final prediction model can perform fast and accurate stratigraphic prediction based on real-time source data and can be widely applied in the field of data processing technology.
Owner:GUANGZHOU MARINE GEOLOGICAL SURVEY
Pressing apparatus
ActiveCN115139078Bguaranteed costlow costMetal working apparatusDisplay deviceMechanical engineering
The application provides a pressing device, and particularly relates to the field of display device assembly, for example, the soft frame pressing of display and reflector, and relates to the field of display technology. The pressing device comprises a feeding member, a first floating member and a product positioning table. The first floating member and the feeding member jointly define a containing part containing a frame body. The volume of the containing part gradually decreases as the first floating member floats from a first position to a second position. The product positioning table comprises a mounting mechanism. When the frame body is contained in the containing part and the feeding member is positioned and mounted on the product positioning table, part of the mounting mechanism moves along a predetermined direction to drive the first floating member to float from the current position to the second position. The pressing device provided by the application realizes the installation of the frame body without falling off.
Owner:JIANGSU CHUANGYUAN ELECTRON CO LTD
Wearable six-degree-of-freedom dual-finger collaborative assistive manipulator
The application discloses a wearable six-degree-of-freedom double-finger collaborative assistive robot hand, which comprises a wrist sleeve, a gear ring, two rotating modules and two operating fingers; the rotating module comprises a sliding seat, two rotating connecting rods, a revolution motor, a revolution driving gear, a revolution gear reduction set, a revolution driven gear, a rotation motor, a rotation driving gear, a rotation gear reduction set, a rotation driven gear, a rotation shaft and a rotation bearing; the operating finger comprises a first finger joint, a second finger joint, a third finger joint, a flexion and extension motor, a lead screw, a screw cylinder, first to third pivot shafts, first to third operating connecting rods and a sliding rod. The application can realize complex daily operations by means of double-finger cooperation or cooperation with a healthy hand, has high flexibility, low cost and high adaptability, and is suitable for daily assistance of the hand disabled.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Preparation method of low-cost ultra-high strength steel electroslag ingot for shell
PendingCN122406122ASolve the difficult problem of removing Plow costElectro-slag remeltingUltimate tensile strength
This invention proposes a method for preparing low-cost ultra-high strength steel electroslag ingots for shells. The chemical composition of the ultra-high strength steel is C 0.30-0.32wt%, Si 1.4-1.7wt%, Mn 0.7-1.0wt%, Cr 1.0-1.3wt%, Ni 0.30wt%, Mo 0.40-0.55wt%, V 0.08-0.15wt%, and the balance Fe. The preparation method includes the following steps: hot metal pretreatment, converter smelting, LF refining, RH vacuum degassing, soft blowing continuous casting, electroslag remelting, and annealing. This preparation method produces D406C ultra-high strength steel, which can replace D406A, while ensuring quality, meeting the requirements of ultra-purity and uniformity, and simultaneously meeting the continuous casting production rhythm, ensuring low-cost continuous production.
Owner:DAYE SPECIAL STEEL CO LTD
Device for detecting omission of steel shaft of electrical product
ActiveCN224127925UGuaranteed marking processImprove practicalitySortingProduct testingMaterials testing
The utility model, which belongs to the field of electrical product detection, discloses an electrical product steel shaft missing detection apparatus comprising a work bench, a conveyor belt arranged above the work bench, and an installation cover fixedly installed above the work bench. A conveying belt is fixedly mounted on the side face of the mounting cover, a detecting device and a marking device are arranged in the mounting cover and located above the conveying belt, a mounting frame is fixedly mounted on the side face of the mounting cover, and a driving mechanism is fixedly mounted in the mounting frame. According to the marking and rejecting device, unqualified materials are directly rejected, the marking and rejecting structure can directly adopt one power source to provide power through the connecting rod structure, mistaken collision of the two structures is prevented, the cost is saved, workers do not need to carry out extra rejecting operation, and the overall practicability and environmental protection performance of the device are improved.
Owner:NINGBO YUJIE ROTARY SHAFT CO LTD
An industrial scene-oriented lightweight model cloud-edge collaborative self-training evolution method
ActiveCN121706993BSolve the problem of uncontrollable self-trainingReduce return bandwidthBiological modelsInference methodsEdge modelArtificial intelligence
The embodiment of the application provides a lightweight model cloud edge collaborative self-training evolution method for an industrial scene, and belongs to the technical field of intelligent industry. The method forms a lightweight representation of a mutation period in a structured log and a window statistical manner on the edge side, and only returns key samples and key contexts when a trigger condition is met, thereby reducing the return bandwidth and return cost. At the same time, the cloud end cognitive writeback provides weak supervision and enhancement instructions for the mutation samples, so that the lightweight edge model has the feasibility of low-cost self-training. Further, through the hierarchical conflict buffer and dynamic gating mechanism, the noise samples are inhibited from damaging the iteration, and the stability after going online is guaranteed through conflict suppression and stability maintenance constraints. Finally, through the effect association of the new inference log and the backflow package, reusable continuous optimization is formed, so as to realize the reduction of edge inference misjudgment rate and the improvement of inference stability, and the real-time and lightweight deployment constraints are also considered.
Owner:GONGYEYUN MFG (SICHUAN) INNOVATION CENT CO LTD
All-metal soluble ball seat based on bridge-shot combined fracturing construction and using method thereof
PendingCN121952496Aeasy transferGuaranteed righting effectDrilling rodsFluid removalInjection equipmentStructural engineering
The invention belongs to the technical field of oil field underground yield and injection increasing equipment, and discloses an all-metal soluble ball seat based on bridge shooting combined fracturing construction and a using method of the all-metal soluble ball seat. An upper cone is in a circular truncated cone shape, a sliding cavity is formed in the upper cone along the center axis, a center pull rod is arranged in the sliding cavity, and the outer conical surface of the upper cone is sleeved with a metal sealing ring; a sealing ring is arranged on the outer side face of the metal sealing ring, a slip is arranged outside the small end of the upper cone and on one side of the metal sealing ring in a sleeved mode, a tailstock is arranged at the end, away from the upper cone, of the slip, one end of the center pull rod is in threaded connection with the tailstock, and the other end of the center pull rod is fixedly connected with a pressing cap capable of abutting against the large end face of the upper cone. A centralizing sliding block is arranged on the portion, located in the sliding cavity, of the center pull rod in a sleeved mode, and the centralizing sliding block is in clearance fit with the sliding cavity. The slip centralizing device has the advantages that the slip centralizing effect is good, meanwhile, the number of parts left in a shaft is small, and rapid degradation can be achieved.
Owner:PETROCHINA CO LTD
Vehicle escape passage starting method and device and storage medium
The application discloses a vehicle escape passage starting method and device and a storage medium. The vehicle comprises a power battery, a storage battery and N low-voltage circuits, each of which is composed of part of the power battery cells. The method comprises the following steps: if it is detected that the vehicle is in an abnormal state of damaged power battery, the power battery of the vehicle is controlled to be powered off under high voltage, and it is determined whether to open the escape passage of the vehicle; if it is determined to open the escape passage of the vehicle, the power supply state of the storage battery is detected, and when the power supply state of the storage battery is an abnormal power supply state, a target low-voltage circuit with a normal state is selected from the N low-voltage circuits; the current vehicle data of the vehicle is determined, and the target priority order of the multiple escape passages corresponding to the vehicle is determined based on the current vehicle data; the target low-voltage circuit is controlled to be closed, so that the target low-voltage circuit supplies power externally and starts the escape passage according to the target priority order. The scheme can ensure the smooth opening of the escape passage.
Owner:VOYAH AUTOMOBILE TECH CO LTD
Rainwater purification and storage device
ActiveCN224281432Ureduce adverse effectsReduce secondary pollutionFatty/oily/floating substances removal devicesBatteries circuit arrangementsOutfallWater resources
The utility model provides a rainwater purification and storage device, which relates to the technical field of water resource purification and comprises a support, a purification container, a drainage mechanism, a reservoir, an underground water kiln and an electric power storage controller capable of receiving weather information. The purification container is provided with a water receiving cavity with an upward opening, a plurality of convex lenses for gathering sunlight to the reservoir are distributed in the purification container, the outer surface of the purification container inclines downwards, an orifice communicated with the water receiving cavity is formed in the lowest point of the inclination, and a water inlet of the telescopic or rotary drainage mechanism corresponds to the orifice; the drainage mechanism is connected with the power storage controller, and the power storage controller controls the water outlet of the drainage mechanism to be arranged corresponding to the water inlet of the reservoir or the underground water kiln according to weather information. The water quality problem existing in rainwater storage application is relieved, the occupied area is small, the cost is low, and pollution cannot be caused.
Owner:NORTHWEST A & F UNIV
SAR (Synthetic Aperture Radar) linear frequency modulation signal predistortion compensation device
PendingCN121784685Aimprove performancereduce dependenceRadio wave reradiation/reflectionMicrowaveRadar
The invention relates to the technical field of radars, in particular to an SAR radar chirp signal predistortion compensation device, which comprises a control module used for receiving a control instruction and generating a driving signal in response to the control instruction; the microwave module is connected with the control module and is used for responding to the driving signal, determining to receive a radar transmitting signal and performing channel selection and down-conversion processing on the radar transmitting signal based on the driving signal so as to output an intermediate frequency signal; the acquisition module is connected with the microwave module and is used for performing high-speed acquisition on the intermediate-frequency signal to obtain waveform data after frequency conversion; and the correction updating module is connected with the acquisition module and the control module, and is used for processing the waveform data after frequency conversion to a baseband waveform, comparing the baseband waveform with ideal waveform data, calculating a phase error, and generating pre-distortion correction data based on the phase error so as to update the emission waveform of the radar. According to the method, the accuracy and reliability of a measurement result can be improved under low-cost budget, so that the performance of the radar is effectively improved.
Owner:CNGC INST NO 206 OF CHINA ARMS IND GRP
Split type freezing handle and freezing device
ActiveCN120501499BReduce the temperaturework lessSurgical instruments for coolingRefrigerationSemiconductor
The application discloses a split type freezing handle and a freezing device. The split type freezing handle comprises a freezing cup and a handle body. The freezing cup is provided with a negative pressure cavity with a single-side opening. A semiconductor refrigerator is arranged on the side of the freezing cup away from the opening. The refrigeration end of the semiconductor refrigerator is in abutting connection with the freezing cup. The heating end of the semiconductor refrigerator is in abutting connection with a liquid cooling element. The handle body is internally provided with a cooling pipeline and a negative pressure pipeline. The negative pressure cavity, the negative pressure pipeline and the liquid cooling element are detachably connected and conductive. The handle body is rotationally connected with a connecting rod. The side of the connecting rod close to the freezing cup is detachably connected with the freezing cup. The freezing cup with a proper shape is selected according to the requirement, so that the requirement of different parts of the human body is met. The freezing treatment of different parts can be completed without using different handles, the cost is reduced, and the working efficiency is improved.
Owner:BEIJING LEADBEAUTY S&T CO LTD
Large-area underground concrete pouring structure
ActiveCN224092573UGuarantee the construction qualityReduce the risk of leakageArtificial islandsClimate change adaptationArchitectural engineeringStructural engineering
The utility model belongs to the technical field of pouring, and particularly relates to a large-area underground concrete pouring structure which comprises two groups of opposite concrete structural plates and a post-cast strip plate, and the post-cast strip plate is located between the two groups of concrete structural plates. First water retaining ridges are integrally arranged at the tops of the opposite ends of the two sets of concrete structural plates, U-shaped steel sealing plates are placed at the tops of the concrete structural plates, mortar smearing splayed corners are arranged at the joints of the U-shaped steel sealing plates and the concrete structural plates, and the inner side surfaces of the U-shaped steel sealing plates make contact with the outer side surfaces of the first water retaining ridges. According to the roof post-cast strip sealing structure, the measure cost (manual materials) before the roof post-cast strip is sealed can be reduced, and the water retaining effect can be improved; in addition, due to repeated utilization of the U-shaped steel sealing plate, leakage of the top plate post-cast strip is avoided, the labor cost can be saved, the hidden danger of leakage is reduced, and the construction quality of the post-cast strip can be guaranteed.
Owner:CSCEC STRAIT CONSTR & DEV
Turnover material receiving mechanism of metal cutting machine tool
PendingCN121973011AGuaranteed accuracyGuaranteed efficiencyMetal working apparatusElectric machineryStructural engineering
The invention relates to the technical field of automatic lathe feeding and discharging tools, and discloses an overturning material receiving mechanism of a metal cutting machine tool, which comprises a base and a control cabinet, an automatic lathe body is fixed on the upper side of the base, and a feeding box, a discharging box and a motor are fixed on the upper side of the base, a feeding plate penetrating through the position between the side walls of the two sides of the feeding box is fixed to one end of the material frame, a discharging plate allowing one end of the discharging box to penetrate through is fixed to the other end of the material frame, clamping plates are slidably connected to the inner wall of the feeding plate and the inner wall of the discharging plate, and balancing weights are fixed to the bottoms of the clamping plates. The control cabinet controls the motor to drive the material frame to rotate, the feeding plate and the discharging plate are made to move to the position coaxial with a chuck of the precision automatic lathe body, the clamping plate and the balancing weight are matched, the feeding plate and the discharging plate can support material bars, feeding and discharging are completed, and therefore automatic feeding and discharging are achieved on the premise that precision, efficiency and cost are guaranteed.
Owner:隽朗精密机械技术(上海)有限公司
Long-chain branched poly-4-methyl-1-pentene and its preparation method and application
This invention relates to the technical field of polymers, and more particularly to a long-chain branched poly(4-methyl-1-pentene), its preparation method, and its applications. The general structural formula of the long-chain branched poly(4-methyl-1-pentene) is shown in Formula I: where R is selected from C1-C8 alkyl groups, m is selected from natural numbers 2-10, and n is selected from natural numbers 0-50. A comonomer is obtained by reacting raw materials including α,ω-non-conjugated dienes and organosiloxane monomers; the comonomer is then polymerized with 4-methyl-1-pentene to obtain the long-chain branched poly(4-methyl-1-pentene). The preparation method is simple, the reaction is mild, the comonomer conversion rate is high, no complicated pretreatment or post-treatment processes are required, and conventional Ziegler-Natta catalysts can meet the requirements, showing broad prospects for industrial production. The selected raw materials are all commonly used in industry, and no special raw materials are required, ensuring cost-effectiveness and suitability for industrial applications.
Owner:CHINA PETROLEUM & CHEMICAL CORP +2