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657results about How to "Flexible adjustment performance" patented technology

Coal mining digital twinning method based on multi-level dynamic deviation correction and AI optimization

The invention provides a coal mining digital twinning method based on multi-level dynamic deviation correction and AI optimization. The method comprises the steps of monitoring data acquisition and dynamic preprocessing, and performing denoising and space consistency detection on data; constructing and pre-processing the coal mine digital twinborn body; generating a nonlinear deviation field by adopting a high nonlinear variable interpolation and model mapping method; performing Kalman filtering error analysis and correction under the continuous analysis step, and marking an optimization model state in combination with a space mutation step; performing staged sliding window long-time-sequence fluctuation analysis, and classifying and marking regions according to an absolute value of an error and fluctuation; performing multi-level weighted error optimization based on a genetic algorithm, and adjusting material parameters and boundary conditions; carrying out material constitutive rectification based on dynamic Bayesian, and gradually enhancing the adaptability and accuracy of the model; and constructing a hybrid network structure AI optimization prediction model based on deep data driving, capturing the dynamic change of the material constitutive and the characteristic difference of the model constitutive, and realizing the precise digital twinborn simulation of the whole coal mining process.
Owner:CHONGQING UNIV

Particle size distribution measuring method and system based on machine learning and light scattering method

The invention relates to the field of particle size distribution measurement, in particular to a particle size distribution measurement method and system based on machine learning and a light scattering method.The method comprises the steps that a to-be-measured particle sample is irradiated through a light source, and meanwhile light scattering intensity data of different scattering angles and different wavelengths are collected through a multi-angle scattered light detector; constructing a multi-modal deep learning model, and forming an integrated learning architecture in combination with a support vector machine model and a random forest model; inputting the preprocessed multi-wavelength light scattering intensity data into the trained integrated learning architecture to obtain a preliminary particle size distribution result of the to-be-detected particle sample; based on the improved Mie scattering theory, a high-precision theoretical model considering the particle shape, the refractive index, the surface roughness and the internal structure is constructed; an improved Bayesian optimization algorithm is adopted, and the initial particle size distribution result is optimized and adjusted by minimizing the error between the theoretical light scattering intensity and the actually collected light scattering intensity, so that a corrected particle size distribution result is obtained.
Owner:CHANGCHUN UNIV OF SCI & TECH

Self-adaptive control method and system for digital twin-driven machine tool

The invention discloses a digital twin-driven machine tool adaptive control method and system and a machine tool control system, and the machine tool control system comprises a data collection unit, a data transmission unit, a twin model unit, a data processing unit, a control decision unit, an adaptive algorithm unit, a control execution unit, a machine tool execution unit and a feedback monitoring unit. The output ends of the data acquisition unit, the twin model unit and the data processing unit are connected with the input end of the data transmission unit; the output end of the data transmission unit is connected with the input end of the control decision unit; according to the method, the control strategy is adjusted in real time through the self-adaptive control algorithm to cope with the change of system parameters and external disturbance, and the advantages of dynamic response capability, robustness enhancement, performance optimization, manual intervention reduction, nonlinear system processing, safety improvement, complex task implementation and the like are provided. The advantages enable the adaptive control algorithm to become an important control means in many modern engineering applications.
Owner:WANK IND TECH (SHANDONG) CO LTD

Data synchronization method and device, electronic equipment, storage medium and program product

The invention provides a data synchronization method and device, electronic equipment, a storage medium and a program product, and relates to the technical field of data processing. The data synchronization method comprises the steps of performing a pressure test on a to-be-executed data synchronization task to obtain a pressure test result; generating a parallel synchronization parameter of the data synchronization task based on a result of the pressure test and an execution parameter of the data synchronization task; generating a synchronization task queue based on the parallel synchronization parameters and the priorities and dependencies of the data synchronization tasks so as to start the synchronization task queue to execute data synchronization operation; and controlling the speed of the data synchronization task based on the execution working condition of the synchronization task queue and / or the newly added synchronization task. Through the technical scheme of the invention, the synchronization operation can adapt to continuously increasing data synchronization requirements and changing service environments, so that the timeliness of data synchronization can be improved.
Owner:JD DIGITS HAIYI INFORMATION TECHNOLOGY CO LTD

Photoresist spin-coating process simulation method and computer equipment

The invention relates to a photoresist spin-coating process simulation method and computer equipment, and the method comprises the steps: building a fan-shaped simulation grid based on the parameter information of a target wafer and the position information of a photoresist injection port; the fan-shaped simulation grid is a fan-shaped space area in the columnar space; the columnar space is a space area defined by space extension by taking the surface of the target wafer as the bottom surface and taking the plane where the photoresist injection port is located as the top surface; establishing a two-phase flow fluid mathematical model; through the target solver, the two-phase fluid mathematical model is iteratively solved according to the boundary condition of the fan-shaped simulation grid, the fluid attribute corresponding to the two-phase fluid and the initial condition of process simulation, and the photoresist spin-coating process simulation result is determined, so that the photoresist spin-coating process simulation efficiency is improved, and the photoresist spin-coating process simulation efficiency is improved. The problems of high cost and time consumption required by a traditional simulation method are avoided, and adjustment and optimization of process parameters are more efficient and flexible.
Owner:ZJU HANGZHOU GLOBAL SCI & TECH INNOVATION CENT

Multi-modal large model automatic evaluation method and system based on Agentic Workflow

The invention discloses a multi-modal large model automatic evaluation method and system based on Agentic Workflow, relates to the technical field of artificial intelligence model evaluation, and solves the technical problems that an existing large model evaluation method lacks image-text evaluation, is relatively high in subjectivity and is easy to cause illusion. The method comprises the following steps that S1, an input task is analyzed, and a structured task template is generated; s2, generating a multi-round multi-modal task flow chart based on the task template generated in the step S1; s3, based on the flow chart in the step S2, distributing the multi-modal large model component to each task node, executing a task and obtaining an intermediate result; s4, performing multi-dimensional scoring on the intermediate and final results in the step S3 by a plurality of scoring Agents, and fusing to generate an evaluation result; and S5, generating a feedback report based on the process data in the steps S1 to S4, identifying a model short plate, and providing an optimization suggestion. The method has the advantages of comprehensive evaluation of multiple modes, real-time feedback optimization and the like.
Owner:SICHUAN XW BANK CO LTD

Malicious encrypted traffic detection method and system based on incremental learning

The invention discloses a malicious encrypted traffic detection method and system based on incremental learning, and belongs to the technical field of network security. The method comprises the following steps: processing original traffic into a standardized feature sequence by adopting a double-layer nested data organization structure, and constructing a sample set; pre-training a malicious traffic detection model by using the sample set; model parameters of the pre-trained malicious traffic detection model are optimized in an incremental learning mode, an experience buffer area used for storing historical training samples, model output results of the historical training samples and sample labels is arranged in the incremental learning process, and the model parameters are continuously updated in the model parameter optimization process; the problem of disastrous forgetting of the model in the continuous learning process is solved by combining dynamic experience playback, stability constraint and a double-layer element updating mechanism; and finally, detecting data to be detected by using the trained model. According to the method, the detection accuracy of the malicious encrypted traffic can be effectively improved, the continuous adaptive capacity of the model is kept through incremental learning, and the method has good practical value.
Owner:ZHEJIANG UNIV +1

Generator device and control method thereof

The invention relates to the technical field of wind power generation control, in particular to a generator device and a control method thereof. The method comprises the following steps of performing real-time monitoring on noise frequency, amplitude and phase when a generator device operates, and generating a noise characteristic data set; extracting the main frequency and phase characteristics of a noise source from the noise characteristic data set, and performing reverse analysis on the data to generate reverse sound wave signal data opposite to the phase of the noise source; and the reverse sound wave generating device transmits the reverse sound wave signal data to the generator device, outputs reverse sound waves through a broadband loudspeaker, superposes the reverse sound waves and original noise in the space, and monitors the noise after noise reduction in real time to obtain noise reduction effect feedback data. According to the invention, noise characteristics are monitored in real time, matched reverse sound wave signals are extracted and reversely generated, reverse sound wave characteristics are dynamically adjusted, closed-loop adaptive control is formed, and efficient and stable noise reduction of a generator device is realized.
Owner:HAIYANG DANQING NEW ENERGY TECHNOLOGY CO LTD

Rail transit star chain system based on digital twinning and communication scheme design optimization method

The invention relates to a digital twinning-based rail transit star chain system and a corresponding communication scheme design optimization method. The system comprises a sensing network, a station center digital twin server cluster system, a station center supervision system and corresponding intelligent service businesses, wherein the sensing network covers rail transit star chain systems of trains, trackside infrastructures, station centers and the like in an omnibearing manner. According to the system and the method, all parameters of an urban rail transit system based on an orbital star chain in an actual physical domain are mapped to a virtual digital domain system, so that all-directional supervision of a full-connection system, effective utilization of multi-source data characteristics and short-time accurate modeling of a channel environment with variable position environment parameters are realized; a communication link selection strategy model is constructed in combination with a model-based reinforcement learning method, and loop optimization is realized and an optimal communication link decision scheme is finally obtained by continuously training the model in a digital domain and collecting samples and verifying the model in a physical domain.
Owner:BEIJING JIAOTONG UNIV

Belt conveyor applying combined roller structure

The invention relates to the technical field of belt conveyors, in particular to a belt conveyor applying a combined roller structure, which comprises a mounting frame and a conveying belt, the conveying belt is mounted at the upper end of the mounting frame, and two groups of roller mechanisms are movably mounted in the conveying belt. A driving mechanism is mounted on one side of one group of roller mechanisms; the belt conveyor has the beneficial effects that the belt conveyor adopts a combined roller structure, flexible installation and adjustment of all parts in the roller are achieved, the adaptability and maintenance convenience of the conveyor are improved, compensation of a notch of the containing groove is achieved in cooperation with the arrangement of the tensioning compensation block, tensioning adjustment of an external conveying belt is met, and the service life of the belt conveyor is prolonged. When the adjusting part extends out, the friction force between the hollow roller body and the conveying belt can be increased, so that the belt is tensioned, the belt is prevented from loosening and shifting in the conveying process, and the use requirement of the belt conveyor is met.
Owner:AMWATER (SUZHOU) TRANSMISSION EQUIP CO LTD

Communication method for multi-application communication based on serial interface and storage medium

The invention provides a communication method of multi-application communication based on a serial interface and a storage medium, the communication method is applied to a protocol stack of multi-application communication, a hardware layer of the protocol stack uses an asynchronous full-duplex serial interface, and the communication method comprises the following steps: establishing a point-to-point transmission channel between applications through the asynchronous full-duplex serial interface; a sending end sets sending numbers for data packets, the data packets are packaged into data frames through a data link layer of a protocol stack, and the data frames are sequentially sent through a transmission layer of the protocol stack according to priorities of point-to-point transmission channels of different applications in all the applications; and the receiving end receives the data frame and verifies the transmission integrity of the data packet according to the sending number. The technical problems that the design of an existing communication method in a multi-chip ECU board is complex, and communication of multiple applications in two chips through one interface cannot be achieved are solved.
Owner:NINGBO JOYNEXT TECH CO LTD

Detection primer and nucleic acid mass spectrometry detection method for African horse pestivirus and west nile virus

The invention relates to the technical field of biological detection, in particular to a detection primer for African horse pestivirus and west nile virus and a nucleic acid mass spectrometry detection method. On the basis of an MALDI-TOF nucleic acid mass spectrum detection method, two relatively conservative genes of VP7 and NS2 are selected as target genes for the African horse pestivirus; and for the West Nile virus, two same conservative genes NS2A and NS5 are selected. Based on the target genes, four pairs of amplification primers and four extension primers are designed. By optimizing selection of amplification sites and adding of modified bases, it is ensured that the molecular weight of the extension probe is effectively distinguished within the detection range, so that the multiple detection target is achieved, and meanwhile high accuracy, specificity and sensitivity of detection are ensured. The kit can efficiently, sensitively and accurately identify the infection conditions of the African horse pestivirus and the west nile virus, can be flexibly adjusted and optimized according to actual requirements, and is expected to play an important role in virus detection and differential diagnosis in the future.
Owner:SCIENCE & TECHNOLOGY RESEARCH CENTER OF CHINA CUSTOMS +1

Atmospheric particulate collection device

The invention discloses an atmospheric particulate collection device in the technical field of atmospheric particulate collection, the atmospheric particulate collection device comprises a pressure regulating pipe and a sliding sleeve slidably connected to the inner wall of the pressure regulating pipe, the inner wall of the sliding sleeve is provided with at least four exhaust sleeves in a communicating manner, the two sides of each exhaust sleeve are respectively provided with a plurality of lateral holes, and the lateral holes are communicated with the pressure regulating pipe. According to the atmospheric particulate matter collecting device, through the design of the pressure regulating mechanism, particulate matter collecting and detecting can be conducted under different air pressure conditions, the sliding sleeve and the exhaust sleeve in the device move through the top rods, and therefore the atmospheric particulate matter collecting device can be used for collecting and detecting particulate matter under different air pressure conditions. According to the device, different numbers of lateral holes can be closed or opened, so that the air outlet resistance is changed, the device can adapt to various air pressure conditions through the design, and the detection flexibility and accuracy are improved.
Owner:内蒙古自治区气象服务中心(内蒙古自治区气象宣传与科普中心)

Integrated concrete carbonization tester

The invention provides an integrated concrete carbonization tester, and belongs to the technical field of concrete durability testing. The tester is used for testing the carbonization degree of concrete; the tester comprises a testing assembly, a drilling assembly, a cleaning assembly and a storage assembly. The testing assembly comprises a shell, and a laser range finder is arranged at one end of the shell; the drilling assembly is detachably arranged at the other end of the shell and used for drilling concrete. The cleaning assembly is detachably arranged on one side wall of the shell, located on one side of the drilling assembly and used for cleaning dust and chippings after drilling; the storage assembly is slidably arranged on the inner wall of one side of the shell and used for storing test records, reagent sprinkling cans and other related tools; and the laser range finder is used for measuring the distance between the concrete surface and the carbonized layer. The integrated concrete carbonization tester is efficient and flexible to use, and the concrete testing efficiency, precision and adaptability are improved.
Owner:KZJ NEW MATERIALS GROUP CO LTD +1

Water-doped methanol fuel static mixer and blending flow control module thereof

The invention discloses a water-doped methanol fuel static mixer and a blending flow control module thereof, the static mixer realizes efficient mixing of methanol and water through a flow guide structure specially designed in the static mixer, and temperature, pressure and flow sensors are combined to monitor and adjust the concentration and supply quantity of fuel in real time. The mixer comprises a feed port, a discharge port, an internal multi-stage mixing structure, a flow control device and a monitoring instrument, through optimized geometric design and the multi-stage mixing structure, the stability of fuel concentration and the reliability of supply are ensured, the module can effectively solve the problems that methanol and water are not mixed uniformly, the concentration fluctuates, and the supply amount is not stable, and the mixing efficiency is improved. And stable supply of fuel is ensured, and the efficiency and safety of the fuel engine are improved. The system is suitable for the actual demand of ship fuel supply and has high automation and reliability.
Owner:SANYA SCI & EDUCATION INNOVATION PARK WUHAN UNIV OF TECH

Automatic rolling forming counting device

The invention discloses an automatic rolling forming counting device, and aims to provide an automatic rolling forming counting device capable of improving the processing efficiency and realizing workpiece management. The automatic rounding machine comprises an operation table, the operation table is provided with a discharging groove, the discharging groove is connected with a counting and collecting assembly, the operation table is sequentially connected with a rounding assembly, a feeding assembly and a limiting assembly around the discharging groove, a discharging plate is arranged below the rounding assembly, the feeding assembly comprises an automatic feeding plate and an arrangement push table, and the automatic feeding plate is connected with the operation table in a lifting mode. The sorting push table is movably connected with the operation table, the sorting push table is movably connected with the automatic feeding plate, the rounding assembly comprises a supporting roller and a rounding disc, the counting and collecting assembly comprises a sensor, a collecting guide plate and a collecting frame, and the operation table is provided with a discharging channel and a collecting groove. The device has the beneficial effects that the workpiece machining efficiency is improved; automatic counting management of workpieces is realized; the functionality of the device is enhanced; the device has high automation degree; operation is smooth and efficient, and continuous machining and production of batch workpieces are facilitated.
Owner:HUZHOU DELPHI AUTO PARTS CO LTD

False data injection attack detection method

The invention discloses a false data injection attack detection method, and belongs to the technical field of network security, and the method comprises the following steps: converting to-be-identified data into image data through a plurality of different modes, respectively converting the image data into different single-channel feature maps, and fusing the different single-channel feature maps to generate a multi-channel feature map; constructing a multi-scale fusion and convolution long short-term memory network model, and capturing multi-scale spatial features and time sequence information in the multi-channel feature map; and classifying the to-be-identified data in combination with the spatial features and the time sequence information. According to the method, multi-scale spatial feature and time sequence information capture is realized by adopting multi-scale fusion and a convolutional long-short-term memory network model, and the accuracy and generalization ability of image classification can be improved due to the combination of the spatial information and the time sequence information.
Owner:STATE GRID GANSU ELECTRIC POWER RESEARCH INSTITUTE

Rigidity-adjustable non-pneumatic tire and vehicle

The invention discloses a rigidity-adjustable non-pneumatic tire and a vehicle, and relates to the technical field of vehicles, and the non-pneumatic tire comprises a spoke structure, a plurality of embedded parts and a fixing assembly. The spoke structure comprises a plurality of spoke units, and a gap is formed between every two adjacent spoke units. The embedded part can be filled into the gap; the fixing assembly is connected with the embedded part, and the fixing assembly can maintain the embedded part in a state of filling the gap; and after the corresponding gaps are filled with the embedded parts of different numbers and / or different sizes, the rigidity of the spoke structure can be adjusted and changed. The rigidity of the spoke structure can be changed by adjusting the number and / or size of the embedded parts.
Owner:QINGDAO LANDAU WHEEL & TRACK TECH CO LTD +1

Intelligent scenic spot management and control system and method based on Internet of Things and big data analysis

The invention discloses a scenic spot intelligent management and control system and method based on Internet of Things and big data analysis, and particularly relates to the technical field of scenic spot intelligent management and control. The real-time performance of data transmission between devices in a scenic spot is predicted and modeled through a big data analysis algorithm, the data transmission rate between the devices is adjusted according to a prediction result, and meanwhile, the working state of the devices is dynamically scheduled in combination with an energy management system, the energy efficiency of the devices is optimized, and tourist flow data is recollected. The flow fluctuation is analyzed by using a machine learning algorithm, so that accurate personnel dispersion and resource scheduling optimization decision are realized, the problems of insufficient network bandwidth, data transmission delay and packet loss in a scenic spot are effectively solved, the real-time performance and accuracy of data transmission are improved, and especially in a remote area, the real-time performance of the scenic spot is improved. The intelligent management and control system of the scenic area can reflect dynamic conditions in real time, and the management efficiency and tourist experience are improved.
Owner:HANGZHOU OUTANG TECHNOLOGY CO LTD

Hill agriculture detection unmanned aerial vehicle capable of stably imaging

The utility model relates to the technical field of unmanned aerial vehicles, in particular to a hill agriculture detection unmanned aerial vehicle capable of stably imaging, which comprises an unmanned aerial vehicle body, the pan-tilt assembly comprises a first mounting frame, a first driving device, a conductive slip ring, a damping device, a second mounting frame and a second driving device; one end of the damping device is connected with the output end of the first driving device through a conductive slip ring, and the other end is connected with the second mounting frame; the imaging assembly comprises a third mounting frame and a camera; the third mounting rack is rotationally connected with the second mounting rack, and at least one end is in transmission connection with the output end of the second driving device; the camera is electrically connected with the conductive slip ring. When the unmanned aerial vehicle maneuvers and flies in a complex terrain, the influence of vibration of the vehicle body on images shot by the camera can be effectively reduced, so that the stability and definition of the images are remarkably improved; due to the light-weight structure, the unmanned aerial vehicle can keep a low load while carrying the imaging assembly, so that the endurance time is prolonged.
Owner:JIANGNAN UNIV

Method and system for dynamically reconstructing diversified network topology based on virtuality and reality combination technology

The invention discloses a virtuality and reality combined method and system for dynamically reconstructing diversified network topology, and belongs to the technical field of novel power systems, and the method comprises the following steps: virtualizing physical equipment in a power system business scene network by using NFV to obtain virtual equipment; constructing a network architecture for realizing a service scene network of the power system by adopting a virtualization mode; physical equipment and virtual equipment in the service scene network of the power system are controlled in a centralized manner based on the SDN; and the SDN controller dynamically reconstructs the service scene network of the power system according to a set strategy. According to the invention, dynamic allocation of network resources and real-time reconstruction of topology are realized through a virtuality and reality combination technology, a software defined network technology and a network function virtualization technology, and virtualized resources and resources of physical equipment can be effectively integrated so as to quickly respond to changes of application requirements.
Owner:STATE GRID LIAONING ELECTRIC POWER CO LTD +1

Plug contact device for testing

The utility model relates to the technical field of automatic testing equipment, in particular to a plugging contact device for testing, which comprises a testing base, a testing placement assembly, a testing base and a testing pressing assembly, the testing placement assembly comprises a placement pushing module, a placement transmission seat and a placement fixing seat, the placement pushing module is mounted on the testing base, and the placement transmission seat is mounted on the testing base. The placement transmission seat is arranged on the base and used for driving the placement transmission seat to move, a test floating element is arranged on one side of the placement transmission seat, and the placement fixing seat is arranged on the test floating element and can float up and down along with the test floating element. The press-down driving module is used for driving the press-down positioning module to position the tested object and press down the tested object, and the placement fixing seat moves towards the test base under the action of the test floating element, so that the tested object is in contact with the test contact electrode. Automatic testing is achieved, manpower is saved, and testing precision is high.
Owner:DONGGUAN GUANJIA ELECTRONICS EQUIP CO LTD

Stability regulation and control method and system for energy storage of power distribution network of power system

The invention discloses a stability regulation and control method and system for energy storage of a power distribution network of a power system. The system comprises an energy storage module, a load regulation and control module, an active power distribution module and a data interaction module, the energy storage module collects and analyzes parameter data based on power system requirements and resources, and reasonably stores the parameter data in a database; the load regulation and control module monitors the energy storage condition in real time and predicts and preferentially controls the load; the active power distribution module monitors power flow distribution and optimizes a power distribution scheme; the data interaction module is responsible for issuing a power distribution scheme to related equipment and adjusting and optimizing the scheme according to feedback; an energy storage objective function is established by comprehensively considering various factors, a dynamic optimization algorithm is used for load prediction, real-time monitoring and optimization of a power distribution scheme, a regulation and control scheme is continuously adjusted and optimized through a data interaction and closed-loop feedback mechanism, and meanwhile, an abnormal trigger limit value is set to guarantee stable operation of the system. Therefore, the expandability and maintainability of the system are improved.
Owner:国网宁夏电力有限公司固原供电公司

Lithium battery cover plate six-surface detection device and method thereof

The invention discloses a lithium battery cover plate six-surface detection device and method, and relates to the technical field of lithium battery detection. The lithium battery cover plate six-face detection device comprises a detection device rack, a lifting elevator, a cleaning and dust removing mechanism, a film pasting mechanism, a product overturning module, a feeding transfer mechanical arm and a detection belt are arranged on the detection device rack, and the lifting elevator, the cleaning and dust removing mechanism, the film pasting mechanism, the product overturning module, the feeding transfer mechanical arm and the detection belt are arranged on the detection device rack. A camera detection unit is arranged on the detection belt, and a discharging mechanism is arranged on the detection device rack. According to the six-face detection device for the lithium battery cover plate, automatic treatment is achieved in the whole process from cleaning and dust removal, film pasting, overturning, detection to discharging, the phenomenon that the detection effect is affected by dirt is reduced, meanwhile, manual intervention is greatly reduced in the detection process, the production efficiency and consistency are improved, and the production cost is reduced. And comprehensive detection of six surfaces of the lithium battery cover plate can be realized through the multi-camera detection unit.
Owner:GUANGZHOU SUPERSONIC AUTOMATION TECH CO LTD

Truck packing scheme recommendation system based on dual-stage maximum loading rate

The invention discloses a truck boxing scheme recommendation system based on a dual-stage maximum loading rate, which belongs to the technical field of intelligent logistics and freight fleet recommendation systems and comprises a truck information processing module, a cargo management module, a pre-packaging processing module, a loading optimization module and a loading scheme export module. According to the method, the performance is obviously improved in the aspect of lorry loading optimization; the two-stage optimization strategy and the modular design are combined with the innovative genetic algorithm application, so that the system is excellent in performance when processing complex goods and diversified requirements; the method has the advantages of high-efficiency data processing and real-time response capability, user friendliness and transportation cost reduction, so that the method has remarkable advantages in practical application, and multiple problems in the prior art are solved.
Owner:NANJING FIBERHOME STARRYSKY CO LTD

Electric tool fault type identification method and system based on data driving

The invention discloses an electric tool fault type identification method and system based on data driving, which are used in the field of fault identification, and the method comprises the following steps: collecting operation data of an electric nail gun under different environment conditions and operation states; processing including time domain analysis and frequency domain analysis is executed on the operation data, and a waveform index and a rough principal component analysis method are used for extracting a feature set for distinguishing fault types in an analysis processing result; constructing a fault type identification model by using a support vector machine combination of K neighbors; performing fault type detection and recognition on the electric nail gun by using the trained fault type recognition model; and obtaining the fault type of the electric nail gun according to the analysis result. According to the invention, fault type detection and identification are carried out by using the model to quickly and accurately determine the fault type of the electric nail gun, the efficiency and accuracy of fault diagnosis are improved, and the cause and the feature of the fault are obtained by comparing the difference between different fault types.
Owner:NANTONG BAIRUILI ELECTRIC TOOLS CO LTD

Suspension type monitoring support

The utility model relates to the technical field of monitoring, and particularly discloses a suspension type monitoring support. The suspension type monitoring support comprises a base, a first mounting support and a second mounting support. The base is a rectangular plate, bolt holes are formed in the base and used for installation and fixation, a protruding part is further arranged on the base, a shaft hole is formed in the axis of the protruding part, and the connecting base is hinged to the protruding part through the shaft hole of the protruding part. The connecting base is composed of a connecting plate, a first side plate and a second side plate, a plurality of evenly-distributed second support installation holes are formed in the bottom of the first side plate and the bottom of the second side plate, and first support installation holes are also formed in the first side plate and the second side plate. The first installation support is hinged to the connecting base through the first support installation hole, and the second installation support is connected with the connecting base through the second support installation hole. According to the suspension type monitoring support, the number of overall structural components is large, a plurality of hinges are arranged between the overall structural components, and stable installation and flexible adjustment of monitoring equipment can be achieved through the suspension support.
Owner:CHENGDU YUYUE LOGISTICS CO LTD

Building construction foundation pit supporting structure and supporting method thereof

The invention discloses a building construction foundation pit supporting structure and a supporting method thereof. The structure comprises a foundation, fender posts, water stop piles, supporting piles, a top beam, a waist beam, anchor cables, a slope protection concrete layer, a soil nailing wall concrete layer, a gravel cushion layer, a water suction pump, a water suction pipe, a well lid, a deepened bearing platform, a reinforced brick tire film and a well casing. The method comprises the steps of 1, field leveling; step 2, enclosure system construction; thirdly, a water stop system is constructed; fourthly, well point dewatering construction is conducted; 5, layered earth excavation is conducted; sixthly, a pit bottom cushion layer is constructed; the pit bottom multi-layer composite cushion layer structure is designed, the gravel cushion layer with the appropriate thickness is laid at the pit bottom so that redundant water can be rapidly removed, the foundation bearing capacity can be enhanced, then the reinforced thickened concrete cushion layer is additionally arranged on the gravel cushion layer, and the overall strength and rigidity of the cushion layer are improved through a reinforcing mesh or a fiber reinforced material; upper loads are effectively dispersed, and pit bottom soil is prevented from further extrusion deformation.
Owner:广东煤炭地质一五二勘探队

Novel construction steel bar hoisting clamp

ActiveCN222159539UImprove hoisting stabilityimprove securityLoad-engaging elementsRebarControl theory
The utility model relates to the technical field of hoisting clamps, and discloses a novel construction steel bar hoisting clamp which comprises a hoisting rod truss, a hoisting mechanism is arranged at the upper end of a support of the hoisting rod truss, a track position correcting mechanism is arranged at the lower end of the support of the hoisting rod truss, and clamping jaw assemblies are arranged below two sets of sliding tables of the track position correcting mechanism. According to the utility model, the hoisting device is pre-assembled on a crane by utilizing the hanging mechanism, then symmetrical displacement correction of the track correction mechanism is utilized, the clamping angle between the two groups of clamping jaw components is adjusted and corrected, so that the construction steel bars are clamped and hoisted in a two-end clamping and hoisting mode, and then the construction steel bars are mechanically clamped and pressed down and fixed by utilizing the clamping jaw components; on one hand, the double-point clamping hoisting device has the double-point clamping hoisting characteristic, the hoisting stability and safety can be improved, and on the other hand, the double-point clamping hoisting device has the flexible adjusting performance, and the construction steel bars with different lengths can be hoisted.
Owner:太原市第一建筑工程集团有限公司

Mechanical equipment locking device replacement mechanism and method

The invention discloses a mechanical equipment locking device replacement mechanism and method.The replacement mechanism comprises a base, a plurality of replacement libraries are formed in the end of the base, and the multiple replacement libraries are used for containing lower parts; the transverse adjusting device and the longitudinal adjusting device are arranged on the base, the end of the transverse adjusting device is connected with a pressing device, the end of the longitudinal adjusting device is connected with a clamping device, the clamping device is located above the pressing device, and the clamping device and the pressing device are used for applying acting force to the upper part; and the elastic rotation stopping device is arranged at the end part of the pressing device and is used for limiting the rotation direction of the lower part. The screw sleeve can be divided into the upper part and the lower part, the lower part is placed in the replacement library on the base, the upper part is placed in the clamping device through carrying equipment, and if the upper part or the lower part needs to be replaced, only the upper part needs to be driven to rotate through external driving equipment, so that the upper part is separated from the lower part; and corresponding parts can be replaced.
Owner:XIAN XD HIGH VOLTAGE SWTCHGEAR OPERATING MECHANISM CO LTD +6