757results about How to "Avoid errors" patented technology

The invention discloses a tight-lock coupler intelligent tensile testing machine and a testing method thereof, and belongs to the technical field of tight-lock coupler test.The tight-lock coupler intelligent tensile testing machine comprises a mounting bottom plate and an electric control cabinet, and a support for supporting a tight-lock coupler to be detected is mounted on the surface of the mounting bottom plate; a tensile connecting frame for connecting the tight-lock coupler is mounted on the surface of the bottom plate on one side of the support, an integrated design of'tensile force detection and visual detection 'is innovatively adopted, mechanical parameter acquisition and visual deformation observation are combined, traditional mechanical data such as tensile force and displacement are obtained, and visual characteristics such as fine deformation and crack initiation are captured; precise synchronization of pulling force application, displacement collection and camera shooting is achieved through the synchronous controller, the real-time corresponding relation of pulling force-displacement-visual deformation is established, the problems that an existing device is single in detection dimension and poor in data relevance are solved, and the potential quality hazard checking capacity and the persuasion of a detection result are improved.

The invention provides a system frequency response estimation method and system based on a fault position, and belongs to the technical field of new energy power grids, and the method comprises the steps: constructing a new energy multi-operation-state model; solving the node voltage of the state model after the fault based on the superposition principle and iterative calculation, establishing a mapping model of the fault position and the low-cross cluster, obtaining the initial value of the active power vacancy, and comprehensively considering the difference between the initial value of the active power vacancy and the active recovery rate between stations at different fault positions. Calculating the system-level total active power vacancy considering the station low-voltage crossing characteristic difference; and constructing a system frequency response model based on the frequency modulation capability difference caused by the fault position, and estimating the system frequency response by adopting the response model. According to the invention, quantitative description of active power vacancy and system equivalent frequency modulation capability loss after disturbance at different fault positions is realized, so that the accuracy of frequency response analysis is improved.

The invention discloses a smart city planning method and system based on digital twinning, relates to the technical field of city planning, and solves the problems that the scheme is not feasible due to dependence on manual interpretation of regulation texts, lack of automatic generation and matching of index constraint lists and possible neglect of key constraint conditions in planning suggestions, and meanwhile, the scheme is high in subjectivity and low in cost. And a unified quantitative model is lacked. Through the NLP technology, planning suggestions and regulation terms are compared in real time, conflict indexes are automatically marked, planning conditions and preliminary index calculation results are combined, the generated project planning suggestions strictly follow a policy framework, and manual interpretation errors or violation risks are avoided. A collaborative quantitative evaluation model of the single building and the regional landscape is established, and the landscape effect of the planning suggestion is evaluated from the dimensions of spatial layout, visual vestibule, skyline, color coordination and the like. The fusion degree of the project and the surrounding environment is visually reflected through quantitative scoring, and the deviation of subjective evaluation is avoided.

The utility model discloses a kind of sealing detection devices for safety valve production, belong to safety valve production technical field, its technical scheme main points include base, the top of base is provided with detection mechanism and fixed assembly, the detection mechanism includes support frame and sealing joint, the top of sealing joint is connected with external pipe, the left side of sealing joint is fixedly connected with pressure detector, the right side of sealing joint is fixedly connected with flow detector, solve the safety valve sealing detection device in existing detection process usually relies on artificial observation pressure gauge, artificial observation cannot capture subtle change in pressure in real time, detection precision is insufficient, and visual fatigue is easily generated, and existing detection device usually lacks the flow monitoring of leakage medium, only by pressure change judges sealing property, cannot accurately quantify leakage degree, it is not conducive to subsequent product quality analysis and improvement problem.

The utility model relates to the field of medical instruments. The hysteroscope liquid collecting barrel comprises a collecting barrel body, a floating groove is formed in the lower side of one end of the collecting barrel body, a floating block is slidably inserted into the floating groove, a separating barrel is attached to the upper end of the collecting barrel body, a sliding groove is fixed to the inner wall of the lower end of the separating barrel, and magnets are fixed to the two ends of the inner wall of the sliding groove. And the upper end of the separation cylinder is in threaded connection with a protective cover. Through cooperative use of the placing box and the filter screen, liquid and secretions in a human body can be separated, when a worker needs to check the secretions, the bolt can be rotated to enable the adjusting blocks to be separated from the separation cylinder, at the moment, the two sets of adjusting blocks are pulled outwards to be separated from the surface of the separation cylinder, and the liquid in the human body can be separated from the secretions in the separation cylinder. And then the separating cylinder is moved upwards, and at the moment, the placing box can be independently taken out for checking, so that the overall working efficiency is improved.

This invention discloses an apparatus and method for evaluating the variation law of fluid components in waxy condensate gas wells. The apparatus includes multiple independent component sampling vessels connected in series. The fluid inlet of the first independent component sampling vessel is connected to the outlet of an intermediate container for well fluid and an intermediate container for aqueous solution. The inlets of the intermediate containers for well fluid and aqueous solution are connected to the outlet of a displacement device. The displacement outlet at the bottom of each independent component sampling vessel is connected to the inlet of a pressure-resistant and heat-insulated container. Valves are installed at the fluid inlet, fluid outlet, and displacement outlet of each independent component sampling vessel, as well as at the inlet of the pressure-resistant and heat-insulated container. A heating device and a pressure regulating device are installed outside each independent component sampling vessel. This apparatus can be used to study the variation law of fluid components in waxy condensate gas wells with temperature and pressure, solving the problem of inaccurate determination of the variation law of fluid components in waxy condensate gas wells with temperature and pressure.

The utility model discloses a carbon emission monitoring device for a thermal power plant, which comprises a collection pipe, a first end of which is used for being inserted into a flue to be detected; the heating assembly is arranged on the periphery of the second end of the collecting pipe; the filter is arranged in the collecting tube; and the gas analysis unit is connected with the second end of the collecting pipe and can detect the CO2 concentration of the gas collected by the collecting pipe. According to the utility model, the CO2 content in the gas can be detected in a severe environment.

The invention relates to the technical field of straightening equipment, and discloses an automatic matching straightening machine for shaft workpieces, which comprises a machine body, a plurality of linear sliding rails for a plurality of mechanisms to linearly move are arranged on the machine body, and strip-shaped tooth grooves matched with moving gears are formed in the two sides of the interior of the machine body; one side of the machine body is provided with a PLC (Programmable Logic Controller) control cabinet for calculating input shaft workpiece data information and generating a control signal, and the PLC control cabinet is used for controlling each mechanism on the machine body in an operation process. By adding and arranging the movable detection mechanism, when the shaft workpiece is straightened, the movable detection mechanism adopts a lever type detection structure, can be tightly attached to the surface of the shaft workpiece, sensitively captures bending deformation information of the workpiece, realizes accurate acquisition of deformation, avoids subjectivity and errors of manual detection, and improves the straightening accuracy of the shaft workpiece. And full-length movement detection can be realized along a linear sliding rail, all parts of the shaft workpiece are covered, and the condition of missing detection of a deformation position is avoided.

The invention discloses a method for determining the content of rubber in a rubber-containing plant based on gel permeation chromatography, and relates to the technical field of analytical chemistry, and the method specifically comprises the following steps: S1, sample pretreatment: drying a rubber-containing plant sample and grinding into powder; s2, rubber extraction: performing ultrasonic extraction on the powder by using a mobile phase of gel permeation chromatography as an extraction solvent, centrifuging, and collecting supernate to obtain an extracting solution; s3, GPC (Gel Permeation Chromatography) detection: filtering the extracting solution, and injecting the filtered extracting solution into a gel permeation chromatographic instrument with a single chromatographic column for detection. The complete plant rubber content determination method is constructed by combining a total rejection GPC principle with an efficient sample pretreatment process, the defects of tedious pretreatment, low detection efficiency or inaccurate detection in the prior art are overcome, the method has the advantages of rapidness, accuracy and the like, extraction and detection parameters can be flexibly adjusted according to different plant samples, and the method is suitable for large-scale popularization and application. The method is suitable for quality analysis and breeding research of various gelatin-containing plants, so that the compatibility is improved.

The utility model discloses a clamp tool for turning a scroll plate of an electric compressor, which comprises a base plate and a support plate fixed above the base plate, the support plate comprises an inner support table and an outer ring which are arranged inside and outside, the outer ring is fixedly connected to the edge of the base plate, and the inner support table is used for being supported in the scroll plate. A connecting rod is fixedly connected between the inner supporting table and the outer ring, a main shaft pull rod is fixedly connected to the center of the base plate, clamping jaws are fixedly connected to the position, located between the outer ring and the inner supporting table, of the base plate, the clamping jaws are distributed on the base plate in an annular array mode, and the clamping jaws make contact with a vortex line of the vortex plate and are used for clamping the vortex plate. And the clamping jaws contract inwards to clamp the scroll plate. When the main shaft pull rod moves upwards, the base plate slightly deforms, the distance between the upper ends of the clamping jaws is increased, the scroll plate to be machined is arranged on the inner supporting table between the clamping jaws, the main shaft pull rod moves downwards, the base plate slightly deforms, the distance between the upper ends of the clamping jaws is decreased, and at the moment, the clamping jaws contract to clamp the scroll plate.

The utility model discloses a kind of observation devices for in-situ evaluation crop absorption fertilizer nutrient, from below to above sequentially include solution collection layer, agar layer, soil layer and gel layer;Wherein soil layer is inserted with first ion concentration sensor, solution collection layer is inserted with second ion concentration sensor.The utility model directly determines nutrient concentration (such as potassium, nitrogen ion) in soil layer and solution collection layer by ion concentration sensor, compared with the mode of traditional determination nutrient concentration, without destroying crop or harvesting plant, realize dynamic, continuous in-situ evaluation.Determination nutrient content in soil extract (not direct soil), avoid the error caused by traditional method because of soil uneven, significantly improve data accuracy.

The present application belongs to the technical field of parameterized modeling, and discloses a tunnel operation area dynamic parameterized modeling method; comprising: collecting measured data of a tunnel operation area; based on the collected measured data, establishing an initial model of the tunnel operation area; dividing the initial model of the tunnel operation area into a plurality of model regions, taking the model regions as nodes to construct an operation area undirected graph; assigning colors to the nodes in the operation area undirected graph; for each model region, determining a corresponding parameter group according to the assigned color, and updating to obtain an overall parameterized model based on the initial model of the tunnel operation area and the corresponding parameter groups of the model regions; namely, the dynamic parameterized modeling result of the entire tunnel operation area, which provides a scientific decision basis for design optimization, construction scheme formulation, risk assessment and operation management of tunnel projects.

The utility model discloses an automatic feeding device for a dyeing pool, which comprises a pool body, a fixing frame is arranged on one side of the pool body, a plurality of tank bodies are transversely arranged on the fixing frame, a collecting part is arranged below the tank bodies, a vibrator is arranged outside the collecting part, and an electromagnetic valve opening is arranged at the lower end of the collecting part. The automatic feeding device has the following advantages and effects that the problem that the powdery dye is easily clamped at the outlet can be reduced through the automatic feeding device, so that a large amount of powdery dye can be fed into the tank body at one time, the adding frequency is reduced, and the burden of workers is reduced. Meanwhile, errors caused by dye proportioning can be avoided, and the dyeing quality is guaranteed.

The utility model relates to the field of chemical fiber production, in particular to rapid cutting equipment for chemical fiber production, which comprises a cutting table, four corners of the bottom of the cutting table are fixedly connected with supporting legs respectively, the top of a cutting table body is fixedly connected with a door-shaped frame, and the bottom of the door-shaped frame is fixedly connected with a first electric push rod. The extending end of the first electric push rod is fixedly connected with a cutting mechanism, the bottom of the cutting mechanism is transversely and slidably connected with a plurality of cutting blades capable of synchronously adjusting intervals, the two sides of the door-shaped frame are fixedly connected with pressing mechanisms correspondingly, and the front end of the top of the cutting table is fixedly connected with a traction mechanism used for pulling a carpet. According to the carpet cutting device, the distance between every two cutting blades can be more accurately adjusted, meanwhile, a carpet is pressed during carpet cutting, slipping and displacement of the carpet are avoided, and the size accuracy of the carpet after cutting is improved.

A modulation depth precise evaluation method for a fiber-optic gyroscope light path noise reduction technology is characterized in that a precise matching model of a light intensity signal of a main light path and a light intensity signal of a reference light path is established by using a fiber-optic gyroscope detector signal, so that precise evaluation of the optimal modulation depth of the fiber-optic gyroscope light path noise reduction technology is realized, and the determination of the optimal state of a gyroscope is efficiently completed. Meanwhile, the voltage signal is used for replacing the optical power signal to achieve evaluation of the optimal modulation depth, the influence of optical power measurement errors can be avoided, and accurate control independent of optical path fusion point loss or accurate matching of optical device parameters is achieved.

The utility model relates to pump vane detection technical field especially is a kind of pump vane detection device of leakage prevention and discharging, including laser detector, the bottom of laser detector is provided with detection plate, the top of detection plate is provided with clamping mechanism, the clamping mechanism includes firm plate, the outside fixed coupling of firm plate has movable pipe, the inside movable link of movable pipe has nylon rod, the outside fixed coupling of nylon rod has clamping cover, reset spring is set on the nylon rod, the outside fixed coupling of firm plate has operating box, the inside of operating box is provided with elastic oil bag, in the utility model, the hydraulic buffering structure of elastic oil bag, buffer plate and oil pipe in operating box, the linkage design of cooperation link rod drive extruding cover, can absorb the impact force in clamping process, reduce the deformation risk of blade due to rigid clamping, and can adapt the clamping demand of different specifications blade.

This utility model belongs to the field of lathe tool measurement technology, and in particular to a vertical lathe tool measuring device, including a first vertical support frame, a base plate, and a second vertical support frame. Its features include: a protractor slidably connected to one side of the second vertical support frame; a horizontal rod fixedly connected to one side of the protractor; a movable plate provided on one side of the protractor; a limiter detachably connected to one side of the horizontal rod; connecting blocks provided on both sides of the movable plate; the horizontal rod passing through one of the connecting blocks; and the horizontal rod being fixedly connected to an adjacent connecting block. Before machining, the device measures the tool according to different shape machining requirements, selects a suitable tool, and measures the angle of tools used for a period of time, filtering out tools with high wear and replacing them to avoid large errors during machining caused by excessively worn tools, thereby ensuring product quality.

This invention discloses a power distribution IoT communication and equipment management system based on dynamic optimization algorithms. It adopts a four-layer architecture: a perception layer, an edge layer, a platform layer, and an application layer. The end devices in the perception layer are used to collect power distribution data and execute control commands. The edge devices in the edge layer, and their managed sub-devices, are used for protocol conversion, data preprocessing, and executing dynamic optimization algorithms. The platform layer is used for message parsing, algorithm optimization, device management, and data storage. The application layer provides a visual user interface. Through dynamic optimization algorithms and a full lifecycle device management scheme, the system significantly improves the reliability of power distribution IoT data transmission, optimizes network resource utilization, enhances equipment operating efficiency, ensures the real-time performance of critical services, and features strong compatibility, security, and concurrent processing capabilities.

The utility model discloses a full -automatic laminating machine for display screen assembly, including gantry, feeding belt line and discharging belt line. Still include platform subassembly, and its first platform and second platform can reciprocate along Y axle, and initial position is adjacent feeding belt line output respectively and discharging belt line input, and terminal position corresponds respectively to rubberizing device and laminating device, and turnover mechanism is located between first platform and second platform initial position, receives rubberizing display screen and turns over to second platform initial position, and transfer device is straddled feeding belt line output, first platform initial position and turnover mechanism top, can move display screen to corresponding position along X axle, and rotating mechanism is located between second platform initial position and discharging belt line input, and transfers display screen of laminating completion to discharging belt line input. The utility model discloses a full -automatic laminating machine for display screen assembly can realize display screen rubberizing, turning over, laminating and the automation process of transfer, improves production quality and assembly efficiency.

This invention provides a method and system for semantic novelty search of scientific and technological literature based on a large-scale pre-trained model, belonging to the field of information retrieval technology. The method includes: acquiring the target user's query input text and retrieval constraints; performing preprocessing and standardization to obtain preprocessed query input text; performing multi-granularity semantic encoding fusion to determine the semantic vector of the preprocessed query input text; performing domain-adaptive fine-tuning to obtain an optimized BERT model; constructing a feature classifier to generate feature semantic representations to obtain feature semantic representation results; performing comprehensive novelty assessment to obtain a comprehensive novelty rating; and performing automated difference analysis to obtain difference analysis results. This invention solves the technical problem in existing retrieval schemes based on pre-trained models that use single-granularity semantic representations, which cannot fully capture the complex semantic structure of professional terms, resulting in inaccurate novelty search results.

This utility model relates to the field of surveying benchmark technology, and more particularly to an adjustable multi-purpose urban planning surveying benchmark, comprising a pole; a mounting disk is fixedly connected to the pole, and a drive assembly is fixedly connected to the mounting disk; the output end of the drive assembly is driven by a lead screw and a threaded rod, and the drive assembly is used to drive the lead screw and threaded rod to rotate; the lead screw and threaded rod are rotatably connected to the mounting disk; a support assembly is connected to the lead screw; and a first telescopic sleeve is threadedly connected to the threaded rod. This utility model achieves structural stability of the surveying benchmark through the support assembly, reducing benchmark swaying or tilting, ensuring data accuracy, reducing the risk of tipping over, and ensuring personnel safety. Utilizing the drive assembly, rotating assembly, and multiple transmission components, it enables flexible adjustment of the height and angle of the measuring device, quickly adapting to different measurement needs, avoiding errors caused by equipment limitations, and rapidly completing height and angle adjustments, shortening on-site operation time.

The utility model provides material distributing equipment. The material distributing equipment comprises a feeding assembly, a material distributing assembly and a first material pressing assembly. The feeding assembly is provided with at least one feeding track, and each feeding track is used for arranging a plurality of workpieces on the feeding track. The material distributing assembly comprises a material distributing frame and a driving mechanism, at least one workpiece groove for placing workpieces is formed in the material distributing frame, and the workpiece grooves and the feeding rails are arranged in a one-to-one correspondence mode; the driving mechanism is arranged to drive the material distributing frame to move to the workpiece groove to be in butt joint with the feeding rail so that workpieces can enter the workpiece groove. The driving mechanism is further arranged to drive the material distributing frame to be away from the feeding assembly, so that the workpieces in the workpiece grooves are separated from the workpieces on the feeding track. The first pressing assembly is arranged on the side, close to the distributing assembly, of the feeding assembly and used for fixing the workpieces on the feeding track through downward pressing or releasing the workpieces on the feeding track through upward moving. According to the material distribution equipment, automatic and orderly material distribution can be achieved, so that the labor cost is reduced, and the production line efficiency is improved.

The application relates to the field of wireless radio frequency identification and Internet of Things tracing technology, in particular to an RFID electronic tag data tracing system and method; the system comprises a data acquisition module, a benchmark reconstruction module, a variation simulation module, a residual error generation module, a coupling judgment module and a tracing feedback module; electronic tag digital identification data, underlying radio frequency characteristic data and tracing node space-time data are acquired, an ideal benchmark characteristic vector is reconstructed, an abnormal state is injected to generate a damaged simulation characteristic vector, actual measurement residual error and simulation residual error are formed and are subjected to time alignment and scale normalization, similarity calculation and environment coupling scoring are combined to output physical tampering, environmental noise or to-be-recovered judgment, and tracing chain blocking, radio frequency compensation or reacquisition instructions are generated; the application can distinguish between environmental fluctuations and malicious tampering, reduce false positives and false negatives, and improve the credibility of the tracing chain.

A magnetic resonance-compatible programmable synchronized photostimulation system includes a main control unit and a stimulation execution unit. The main control unit is located outside the magnetic resonance scanning room, while the stimulation execution unit is located inside the scanning room and consists only of an LED light panel shielded by a magnetic field. The main control unit is configured to: receive photostimulation sequence parameters configured by the user in a modular manner through a graphical interface; receive a scan trigger signal from the magnetic resonance equipment, and automatically control the start and stop of the photostimulation sequence based on the trigger signal using hardware triggering; thereby achieving high-precision time synchronization between photostimulation and magnetic resonance scanning while maintaining magnetic resonance compatibility. This invention solves electromagnetic compatibility issues through a split architecture, achieves millisecond-level synchronization accuracy through hardware TTL triggering, and enhances experimental paradigm flexibility through modular programmable sequences, making it suitable for neuroscience research fields such as functional magnetic resonance imaging.

This invention discloses a liquid-cooled collaborative intelligent temperature control method and system based on layered PCM, relating to the field of liquid-cooled temperature control technology. The method includes: S1, real-time acquisition of liquid-cooled temperature control data and preprocessing of the data; S2, calculation of the sensible and latent heat absorption of the outer and inner PCM layers, assessment of the risk of thermal imbalance on the conductor surface, determination of the current thermal state, and output of a thermal risk warning signal; S3, assessment of the degree to which cable bending weakens thermal coupling performance, triggering a layered PCM collaborative temperature control strategy, and execution of graded control commands for the power pump, circulation pump, and three-way valve; S4, assessment of the deviation between the current heat exchange capacity and the heat load demand, correction of the cooling response coefficient, and optimization of the PCM collaborative temperature control strategy. This solves the problems of unstable thermal coupling between the coolant pipe and the heating conductor in existing liquid-cooled cables, and the tendency for pipe deformation and contact thermal resistance and localized hot spots to occur with frequent bending.

The application discloses a kind of cylindrical detector angle measurement method, comprising the following steps: setting the projection plane of cylindrical detector;Based on the single frame result obtained by actual measurement of cylindrical detector to radioactive source, all angles are traversed, and the assumed incident part and the assumed exit part are projected to the projection plane in a one-to-one manner to obtain the first projection point and the second projection point;The first projection point and the second projection point are made to correspond to each other by interpolation;The first projection point and the second projection point are multiplied and summed to obtain the inner product result;Based on Cauchy inequality, the angle with the maximum inner product is selected as the correct incident angle.The application utilizes the property of mathematical Cauchy inequality to accurately and efficiently calculate the incident angle, eliminating the trouble of estimating the attenuation factor in the traditional method and the error introduced thereby.

This invention provides a method, apparatus, and system for multi-point temperature correction of an array induction logging tool. The method includes: acquiring measurement signals from the array induction logging tool during temperature changes, the measurement signals being detected by a preset number of temperature sensors; constructing a temperature coefficient matrix for each temperature sensor based on the measurement signal, resulting in a preset number of temperature coefficient matrices; calculating a temperature correction coefficient matrix based on each temperature coefficient matrix; acquiring actual measurement signals from the array induction logging tool downhole, and performing temperature correction on the measured signals based on the temperature correction coefficient matrix. The multi-point temperature correction method for an array induction logging tool provided by this invention can calculate the temperature correction coefficient matrix based on the actual measurement signals and correct the measured signals based on the temperature correction coefficient matrix, thus avoiding errors caused by formation temperature changes and improving the accuracy and reliability of the array induction logging tool.

This utility model relates to the field of sheet metal stamping technology, and in particular to a sheet metal stamping device with adjustable stamping angle, comprising: a frame on which a lower die is mounted; a stamping mechanism including a first motor, a lead screw, a sliding table, and a stamping assembly cooperating with the lower die, the stamping assembly including a support block and a stamping block rotatably disposed therewith; and an adjustment mechanism for adjusting the angle of the stamping head, including a first adjustment part and a second adjustment part, the first adjustment part being used to drive the support block to rotate. The advantages of this utility model are: through the synergistic action of the first and second adjustment parts, multi-angle precise adjustment of the stamping head can be achieved, meeting the processing requirements of different sheet metal parts, reducing the frequency of die replacement, and improving production efficiency; the use of a motor-driven worm gear and gear transmission mechanism realizes automatic adjustment of the stamping angle, avoiding errors and safety hazards caused by manual adjustment, and improving processing accuracy and ease of operation.

The application relates to a plane circle center point-based SolidWorks standard part automatic installation method for a parameter-free model, and belongs to the field of computer-aided design and three-dimensional mechanical design automation. The method first selects any part plane and any assembly hole on the part plane through a point selection mode; a sketch is created based on the geometric boundary of the part plane, and the coordinates of the sketch are determined according to the geometric boundary position information of the part plane; all assembly holes with the same hole feature on the part plane are automatically identified according to the extracted selected assembly hole feature, and corresponding sketch coordinates are established; sketch points are established for all sketch coordinates under the part plane; and the sketch-driven part array function is called, after manually assembling a standard part at any sketch point, the standard part assembly is automatically executed at all sketch points. The application can automatically batch install standard parts by using the sketch-driven part array function of an assembly body.