52results about How to "Ease of evaluation" patented technology

The utility model belongs to medical apparatus and instruments, concretely relates to a kind of pathological auxiliary material taking tool of endoscopic mucosal resection specimen, including total connecting plate and comb plate;The side of total connecting plate is connected comb plate;Comb plate is composed of several parallel straight boards, the width of each straight board is less than target material taking width;The distance between the upper edge of the n-1th straight board to the upper / lower edge of the nth straight board is equal to the distance between the upper / lower edge of the nth straight board to the upper / lower edge of the n+1th straight board, and the distance between the upper / lower edge of the n-1th straight board to the upper / lower edge of the nth straight board is equal to target material taking width, wherein, n is natural number greater than 1 and less than total number N.Compared with prior art, the utility model solves the problem that it is difficult to control the cutting size and easy to cause specimen contamination when cutting specimen into mucosal strips in prior art.The tool of the present scheme can effectively assist cutting positioning and control the cutting size.

This application discloses a method and related equipment for evaluating the smoothness of in-vehicle infotainment systems, relating to the field of vehicle testing technology. The method includes: acquiring a recorded video stream of the in-vehicle interaction process of a target vehicle; parsing and processing the recorded video stream to obtain temporal data of the visual features of the in-vehicle infotainment system during the interaction process; determining quantitative information on the smoothness of the target in-vehicle infotainment system based on the temporal data of the visual features; and generating a smoothness score characterizing the smoothness of the in-vehicle infotainment system based on touch response latency, animation frame dropping features, and stuttering features. This application, by parsing and extracting temporal data of the visual features from the recorded video stream of the in-vehicle interaction process, quantifying touch response latency, animation frame dropping features, and stuttering features, and generating a unified smoothness score, can achieve an objective, detailed, and comprehensive evaluation of the smoothness of the in-vehicle infotainment system.

The invention belongs to the technical field of coal mine safety monitoring, and discloses a coal mine tunnel roof disaster real-time early warning system and method. Comprising the following steps: performing time sequence reasoning on monitoring data acquired in real time, respectively judging whether the key physical quantity of the roof triggers primary early warning or secondary early warning by acquiring an expected value prediction curve and an uncertainty boundary curve of the key physical quantity of the roof in a future time step, and acquiring corresponding early warning information when the early warning is triggered; constructing a dynamic causal graph, inputting the early warning information and the currently acquired key physical quantity into the dynamic causal graph for reasoning, calling candidate intervention measures based on the acquired current state node to perform anti-fact reasoning in the dynamic causal graph, and acquiring a risk evolution trajectory and a risk suppression efficiency index of the candidate intervention measures; and the risk suppression efficiency indexes are sorted and preferentially selected, and a causal decision early warning report containing the optimal intervention scheme is output, so that the scientificity and effectiveness of risk suppression are improved.

The utility model discloses a testing device for testing the flow coefficient of a flow regulating valve. The testing device comprises a water tank; the flow regulating valve is arranged on the main pipeline; the differential pressure sensor is connected to the main pipeline on the two sides of the flow regulating valve; the pressure difference regulating valve is arranged on the main pipeline; the pneumatic three-way valve is arranged on the main pipeline, an inlet of the pneumatic three-way valve is connected to an outlet of the differential pressure regulating valve, and a first outlet of the pneumatic three-way valve is connected to an inlet of the water tank; the container is connected with a second outlet of the pneumatic three-way valve; and the mass meter is used for measuring the mass of the container. According to the device, a weighing method is adopted for flow measurement, a PLC system is combined for control and data collection, operation of a three-way valve and an auxiliary pump and the rotating speed of the pump are controlled, and signals of a high-precision electronic balance and differential pressure signals of a differential pressure transmitter are collected, so that accurate evaluation of the micro flow regulating valve is achieved.

The utility model discloses an electrolytic bath bipolar plate micropore flow channel performance detection device. A bipolar plate assembly is arranged on a bottom plate; the cover plate is arranged at the top of the bipolar plate assembly and is made of a transparent material; the isolation plate is arranged between the two adjacent bipolar plates, airflow simulation units are arranged on the sides, facing the bipolar plates located below the isolation plate and the cover plate, of the isolation plate and the cover plate, and airflow can be provided for the anode sides of the corresponding bipolar plates through the airflow simulation units; the jet flow form detection unit and the jet flow height detection unit are respectively used for detecting the jet flow form and the jet flow height of the jet flow formed on the bipolar plate below the cover plate; and the jet flow pressure detection unit is used for detecting the impact acting force of the jet flow formed on the bipolar plate below the jet flow pressure detection unit. By simulating the real working condition of the bipolar plate, the performance of the microporous flow channel under different design parameters can be fed back more truly, and a reliable guarantee is provided for optimization of the design parameters of the microporous flow channel.

The invention relates to the technical field of oil development, and discloses a thin oil treatment process flow analog simulation method and device, a medium and equipment. The method comprises the following steps: establishing a mechanism calculation model of each sub-device in a thin oil treatment process flow; associating the mechanism calculation model of each sub-device, and calling a function to perform coupling calculation; different initial conditions are set, and the change process of technological parameters in the production process during component change is simulated; setting a plurality of input conditions, and initializing analog simulation based on the input conditions to control component change; and performing analog simulation to obtain a simulation result. According to the method, a set of complete thin oil treatment process flow analog simulation method is constructed, the dynamic analog simulation process of the thin oil treatment process flow is realized, and real-time calculation of simulated dynamic working conditions is realized; according to the method, verification can be carried out before actual use, the effect after adjustment and existing potential safety hazards can be directly reflected before an optimization scheme is implemented, and the field process is convenient to adjust.

This invention discloses a method and apparatus for constructing an engineering model of a closed-loop control system. The method involves obtaining the process given amplitude of the closed-loop control system and its process output parameters, including a steady-state value, a first peak value, a first peak time, and a second peak time. A first difference between the second peak time and the first peak time is calculated. Based on this first difference, a time constant for the engineering model of the closed-loop control system is set. Based on the steady-state value and the process given amplitude, the gain of the engineering model is set. Based on the first peak value and the process given amplitude, the identification coefficients of the engineering model are set. The engineering model is then determined based on the time constant, gain, and identification coefficients. Compared with existing technologies, this invention enables rapid construction of an engineering model of a closed-loop control system based on relevant process given parameters.

The thyroid-associated ophthalmopathy recognition method, system and terminal based on facial expression analysis of the application obtain the normal facial expression recognition result corresponding to the normal human face recognition or the sick facial expression recognition result corresponding to the thyroid-associated ophthalmopathy human face recognition through the thyroid-associated ophthalmopathy recognition model obtained by training, to perform facial expression recognition on the obtained human face image data to be recognized. The application starts from the scientific problems such as the expression face feature description of the thyroid-associated ophthalmopathy patients and the expression analysis based on the neural network, and finally realizes the purpose of the thyroid-associated ophthalmopathy screening, facilitates the user to evaluate the eye health condition of the user, saves a large amount of economic cost and time cost, and can effectively improve the work efficiency of the hospital for the thyroid-associated ophthalmopathy screening, reduces the work cost, and further promotes the popularization and application of the efficient, convenient and low-cost orbital disease screening method in China.

The application provides a six-axis robot trajectory optimization method combining kinematics constraints and parameterized simulation verification, and relates to the technical field of robot trajectory planning, and comprises the following steps: determining a path segment to be optimized of a six-axis robot based on entity hardware composition of a workstation, signal control logic and process beat requirements; constructing a six-axis robot trajectory planning model; generating an optimized trajectory of an end effector of the six-axis robot by adopting a quintic polynomial interpolation algorithm; performing process point selection on the optimized trajectory of the end effector of the six-axis robot, and performing risk simulation verification on the selected process points by utilizing a mixed collision early warning mechanism of the separation axis theorem and a neural symbolic distance field, until the optimized trajectory of the end effector of the six-axis robot does not have an interference risk, and finally obtaining the end effector trajectory of the six-axis robot. The application can avoid hardware loss caused by equipment collision and raw material waste in the debugging process.

The application provides a system for non-invasively evaluating the intrauterine nutrition condition of a newborn and application thereof, and the system is used for analyzing the change of compound components in meconium of the newborn. The application first proposes a novel system and method for non-invasively evaluating the intrauterine nutrition condition of the newborn, and the method can quickly and conveniently evaluate the intrauterine nutrition condition of the newborn in a non-invasive manner.

A kind of tunnel laser point cloud generates lining inner surface image method, comprising: obtaining point cloud data;Splicing forms complete tunnel point cloud;Obtain segmented point cloud;Manual denoising;Load segmented point cloud data, and carry out the downsampling of point cloud data;Point cloud data is projected on plane;Automatic denoising;Extract the contour boundary of two-dimensional plane tunnel point cloud;Determine side wall line point set and caliber line point set;Two side wall line point sets determined are respectively moved mean value smoothing operation;The average width between two side wall lines is calculated;Obtain the central axis point set of tunnel;Obtain central axis;With central axis as reference, carry out two-dimensional image development.The present application can quickly process large-scale tunnel point cloud, generate fine tunnel lining inner surface image, be suitable for medium-length tunnel, super-long tunnel and curved tunnel, provide new method for tunnel lining inner surface image generation, so that tunnel lining apparent disease detection and evaluation are more efficient, convenient, accurate.

The application discloses a kind of pin type coupler gap detection device and method under analog hitching state, its device includes: hitching hook head, hitching hook head side is equipped with with the hook tongue cavity of the pin type coupler to be detected and with the arc structure of hook tongue cavity adaptation hitching groove;Fixed support frame, with the car coupler body of the pin type coupler to be detected fixed connection and hitching hook head and fixed support frame between sliding connection;Displacement detection device and hitching force simulation device are respectively used to measure the relative displacement amount between two and simulate the interaction between two.The method can detect the gap of pin type coupler or provide guidance for the processing of the tongue of pin type coupler by the above equipment.Compared with prior art, the beneficial effects of the present application are: by being equipped with quantitative visual indication mechanism, can be used with single set of car coupler hook head, i.e.real-time measurement of car coupler hitching gap greatly improves the accuracy and convenience of measuring pin type coupler hitching gap.

This invention discloses a risk assessment method for continuous flow chemical processes, comprising: establishing a chemical process safety information data list based on the chemical process to be assessed; identifying whether the chemical process has risks; determining the critical temperature range corresponding to the risks if risks are determined, and conducting risk assessment, including: obtaining the reaction temperature distribution in the continuous flow reactor under the assessed process conditions; assessing the severity and probability of process risks based on the reaction temperature distribution, critical temperature range, and maximum reaction temperature; and assessing the overall process risk based on the severity and probability of process risks. This method enables the quantification of risks in continuous flow processes under different process conditions, solving the problem of a lack of risk quantification methods in the development and application of continuous flow chemical processes.

The invention belongs to the technical field of oil and gas field development reservoir transformation, and discloses a tracer agent for multilayer fracturing flowback monitoring, a preparation method and application, according to the preparation method, the effectiveness of the tracer agent is evaluated through an experimental means, and it is guaranteed that the effective tracer agent can be used for monitoring a flowback curve of fracturing fluid flowback volume along with time; according to the application method, a tracer agent is used for marking fracturing fluid, and the initial fracturing fluid dosage and the initial tracer agent dosage are recorded; after flowback is started, accumulated flowback volume is recorded at a fixed time interval, the real-time concentration of the tracer agent is measured, and the flowback volume of each section is calculated; according to the return volume of each section and the accumulated return volume of each section, the return curve and the accumulated return rate of each section are calculated, the liquid production contribution rate and the production sequence of each layer section can be accurately obtained, and the liquid production capacity can be calculated in a semi-quantitative mode. Through flow-back liquid sample detection and data analysis, the liquid drainage sequence, the flow-back contribution rate and the like of each layer section can be determined, and data support is provided for subsequent construction.

The utility model relates to the field of SF6 gas micro-water density, and discloses auxiliary calibration equipment for an SF6 gas micro-water density sensor, which comprises a sensor, the sensor is placed in a box body, the inner bottom surface of the box body is fixedly connected with a mounting seat, the sensor is clamped in the mounting seat, an additional box is fixedly connected to one side, corresponding to a gas inlet pipe of the sensor, outside the box body, and the additional box is connected with the sensor. A multi-parameter gas calibration structure is arranged in the additional box, a sealing connection structure is arranged between a gas inlet pipe of the sensor and the multi-parameter gas calibration structure, a data collecting and processing system is installed on one side in the box body, and the top end of the sensor is connected with the data collecting and processing system in a wiring mode. A temperature control system is installed on the side, opposite to the data collecting and processing system, in the box body, multi-parameter gas calibration structures such as the humidity generator, the standard gas tank and the pressure calibration instrument are integrated in the additional box, the gas input pipeline layout, the precise pipeline design and the sealing connection structure are optimized, and gas leakage is effectively avoided.

The application discloses a kind of equipment failure evaluation system based on multi-dimensional data of Internet of Things, and the multi-dimensional data such as mixed sound, axial vibration, radial vibration and bearing temperature in the working process of motor are collected and analyzed, to comprehensively evaluate motor failure.The application obtains the motor maintenance danger evaluation coefficient that multi-dimensional data shows by collecting the multi-dimensional data such as noise, vibration and temperature of motor and carrying out the analysis of multi-dimensional data, reflects the dangerous degree of continued use after motor failure, and realizes the quantitative display of dangerous degree, is convenient for comprehensive evaluation and prediction to motor failure, reaches the effect of early warning and maintenance.

The invention discloses a lithium battery failure mode evaluation method based on multi-physics field simulation. The method comprises the following steps: determining a 3D structure of a soft package lithium ion battery monomer; constructing an electrochemical numerical model and a heat transfer model for simulating the charging and discharging process of the soft package lithium battery; a battery degradation model is established, the SEI film formation and lithium deposition / dissolution states are reflected through an SEI formation equation, a lithium deposition / dissolution equation and a composite film equation, and the electrochemical performance of the composite film is predicted; wherein the electrochemical performance comprises the resistance of the composite membrane, the integral number of electrolyte and the charge health state; building a finite element analysis model based on the 3D structure, and solving the electrochemical performance of the electrode in the charging or discharging process; and obtaining the capacity loss and the aging degree of the soft package lithium ion battery under different working conditions. According to the technical scheme, failure simulation can be carried out by integrating multiple factors, the failure mode of the battery can be evaluated conveniently, and efficient design and optimization of the lithium battery are achieved.

The invention discloses a self-adaptive optimization and linkage control method for a cooling tower. The method comprises the following steps: carrying out online monitoring; setting initial abnormity monitoring and judging whether abnormity exists or not; sequence optimization of the control strategy is carried out after abnormity occurs; and the sequential optimization control strategy is evaluated by using an accounting cost function J. According to the method, an on-line abnormity monitoring mode is adopted, sequence switching of the control strategies is carried out after abnormity occurs, then on this basis, evaluation is carried out by using the cost function J, subsequent sequence optimization is carried out, and the control strategies are sorted in a new sorting mode for subsequent adaptive optimization.

The invention discloses application of a barrier material to a drawing casing and a casing drawing test device and method, and relates to the technical field of petroleum drilling and well cementation engineering.The casing with different cementation coverage rates is prepared by applying the barrier material to the casing; installing the casing pipe attached with the barrier material in a test piece mold, pouring cement into the mold, and curing to form a test piece; and finally, taking out the test piece from the mold, and clamping the test piece into a sleeve drawing device for testing. According to the scheme, by adjusting the cement coverage rate of the shrinkage-size casing and the cement strength of the simulation test piece, the comprehensive influence of the cement coverage rate and the cement strength on the axial resistance of the casing can be systematically reflected, and the limitation of single condition of existing research is made up.

The invention discloses an acoustic radar near-surface wind speed inversion method and system based on entropy weight feature fusion, and the method specifically comprises the steps: carrying out the preprocessing of acoustic radar frequency spectrum data, and obtaining the preprocessed frequency spectrum data; based on the preprocessed spectrum data, constructing a Doppler window dynamic migration model based on turbulence dynamics power law distribution; on the basis of a Doppler window dynamic migration model, candidate spectrum peaks are selected at each height layer, a feature space is constructed, feature weights are dynamically distributed by using an information entropy theory, and an optimal spectrum peak is selected; introducing a symmetry constraint optimization strategy to the optimal spectrum peak, detecting the profile symmetry of the wind spectrum in the symmetric direction, and calibrating an asymmetric result to obtain a target wind speed inversion result; and comparing and evaluating the target wind speed inversion result and the wind speed of the anemometer tower as a reference to complete inversion result verification. According to the method, the wind speed inversion precision of the acoustic radar in a complex environment is effectively improved, and better evaluation and efficient utilization of wind energy resources are promoted.

The invention provides an MBSE-based full-electric chassis design modeling method and device, and solves the technical problems that the design work energy consumption is high in demand tracing and influence analysis, and the simulation calculation of each specialty is dispersed and cannot be integrated and verified. The method comprises the following steps: a demand quantification process: quantifying an overall demand to form a demand model; an architecture forming process: designing functional compositions and physical compositions according to the demand model, sequentially forming organizational structures of a subsystem, a communication architecture and a power supply and distribution architecture, and forming organizational structure optimization according to the demand model; in the demand parameterization process, demand parameterization of the population and the subsystems is formed according to the demand model and the organization structure, and parameter attributes of the population and the subsystems are optimized through inter-system joint simulation; and in the scheme comparison process, multi-scheme comparison is established according to parameter constraints between the overall system and the subsystems, and a UI is provided for data display of the comparison schemes. The method is suitable for design and development of a vehicle chassis scheme, and has the characteristics of high efficiency, universality and reusability.

The invention relates to a sit-up counting detection method and system, and belongs to the technical field of computer vision, and the method comprises the steps: obtaining the position of a terminal device, dividing target persons into three rows based on the position of the terminal device, setting a preset number of point locations from each row close to the terminal device, and determining the head orientation of each row of target persons; under the condition that counting detection is started, first key point coordinates of each frame of target personnel in a counting time range are obtained; calculating the position score of each frame of target personnel based on the first key point coordinates, and calculating the number of sit-ups of the first row of target personnel according to the position score of each frame of target personnel, the position change score, the counting score and the action standard score in each getting-up process; and calculating the number of sit-ups of the second row of target persons based on the second key point coordinates and calculating the number of sit-ups of the third row of target persons based on the third key point coordinates. High-precision and high-robustness automatic counting of sit-ups in a complex real scene is realized.

This application relates to a method, system, electronic device, and storage medium for early warning of acute mountain sickness. The method includes: collecting physiological data from a step test conducted on a subject at a target plain altitude; generating at least one physiological principal component based on the step test data; performing cluster analysis on the at least one physiological principal component to obtain risk classification clusters; obtaining the actual high-altitude Lake Louise score of the subject in each risk classification cluster and calculating the score interval proportion to determine the risk classification label; and providing an early warning of acute mountain sickness to the user based on the risk classification label. This solves the problems in related technologies, such as high dependence on specialized testing equipment and laboratories, time-consuming testing processes, inability to screen individuals before they enter high altitudes, difficulty in achieving non-invasive and simple screening, and inability to effectively determine the acute mountain sickness tolerance of new subjects, thus hindering personalized early warning and prevention.

The invention discloses a high-orbit SAR on-orbit noise measurement method. The method comprises the following steps: 1, adjusting the beam direction of a satellite antenna to enable the beam direction of the satellite antenna to point to cold air; 2, a lower computer of an SAR load subsystem radar receives an SAR work instruction packet sent by a satellite data management subsystem and injects the SAR work instruction packet into a central control processor; 3, the central control processor sets working parameters of the SAR load receiving single machine according to the SAR working instruction packet; the central control processor does not output a transmitted waveform; and 4, after a cold air noise signal received by the satellite antenna is amplified, AD acquisition and processing are carried out by a central control processor of the SAR load subsystem radar, the processed calibration data are combined and packaged according to a preset format, a data stream is formed and then transmitted to a data transmission system, and the data transmission system transmits the data stream to the satellite antenna. And after the data transmission system issues the data to the ground, a high-orbit SAR on-orbit noise measurement result is obtained. According to the method, the measurement precision of the on-orbit noise of the SAR system can be greatly improved.

The application provides a planet rover transfer device and a transfer characteristic test evaluation method, and belongs to the technical field of planet rover transfer and test. The planet rover transfer release device comprises a slow-release rope, a hanger, a swing rod and an attitude control rope. One end of the swing rod is rotationally connected to a side wall of a lander. The other end of the swing rod is provided with an attitude control hinge. One end of the hanger is connected to the attitude control hinge, and the other end of the hanger is connected to a rover. One end of the attitude control rope is connected to the lander, and the other end of the attitude control rope passes through the attitude control hinge. The slow-release rope is wound on a slow-release rope wheel. The slow-release rope wheel is arranged on the side wall of the lander. The slow-release rope is connected to the hanger. The device is mainly used for planet rover transfer device and transfer characteristic test.

This invention provides a method for evaluating the power system stability improvement capability of controllable commutated converters (CLCCs), addressing the lack of quantitative evaluation of the stability effects of novel CLCC converters in existing technologies. Specifically, this method aims to comprehensively evaluate the effects of CLCCs in suppressing commutation failures, mitigating voltage fluctuations, and enhancing system disturbance immunity by defining the "Effective System Strength Ratio (SCESSR)" for single-circuit DC systems and the "Effective Cooperative Strength Ratio (MCESSR)" for multi-circuit DC systems, combined with simulation verification. This provides a scientific basis for power grid planning, operation control, and fault diagnosis, improving the safety and stability of AC / DC interconnected power grids in scenarios with a high proportion of renewable energy.

This invention proposes a multi-granularity 3D battlefield situation visualization method based on simulation data. The method first uses a simulation data generation module to execute combat scenarios and generate battlefield simulation data. Then, a simulation data interface parsing module analyzes the battlefield simulation data to obtain time-series structured battlefield data. Further, a battlefield entity data modeling module constructs hierarchical multi-granularity battlefield entity data at the faction, region, formation, and weapon levels. A weapon capability model calculation module calculates the radar detection range and attack range of weapons. A multi-granularity battlefield situation calculation module generates weapon-level, formation-level, region-level, and faction-level battlefield situation results. Finally, a 3D visualization module dynamically displays battlefield entities and threat situations within a 3D engine. This invention achieves unified organization of simulation data, multi-granularity situation analysis, and dynamic 3D visualization of the battlefield situation.

The present application relates to the technical field of livestock breeding digitization, and particularly discloses a live pig and sheep health state evaluation and intelligent sales system based on blockchain traceability, comprising a server and a plurality of local devices; wherein the local device is used to acquire first monitoring parameters of live pigs and sheep in the breeding stage; the server comprises a model selection module, which is used to match and select a corresponding health evaluation model and a sales matching model from a preset livestock health knowledge graph according to the first monitoring parameters; wherein the health evaluation model is a long short-term memory network model, which is used to evaluate the health state; according to the livestock health knowledge graph corresponding to the first monitoring parameters, the server dynamically selects the health evaluation model and the sales matching model, compared with the local fixed model, the problem that the model becomes worse with use is avoided, and the live pig and sheep state monitoring accuracy is improved.

The utility model relates to the technical field of optical testing, and discloses multipurpose optical testing equipment which comprises a bottom plate and an optical testing equipment body, the optical testing equipment body is fixedly connected with the bottom plate, a lifting plate is arranged on the surface of the bottom plate, a lifting mechanism is arranged on the surface of the bottom plate, and a turnover frame is rotationally connected in the lifting plate. A clamping mechanism is arranged in the overturning frame, a rotating shaft is fixedly connected to one end of the overturning frame, an angle display mechanism for conducting angle prompting on the overturning frame is arranged at one end of the rotating shaft, a driving frame for driving the rotating shaft to rotate is slidably connected to the interior of the lifting plate, and a plurality of different types of light source equipment bodies are arranged on the surface of the bottom plate. The surface of the bottom plate is provided with a switching mechanism for driving different types of light source equipment bodies to switch, the equipment is adjusted through overturning, the pitching, deflection or rotation posture of the lens can be dynamically adjusted during testing, and comprehensive evaluation of the optical performance of the tested lens at different incident angles or installation inclination angles is facilitated.

The present invention relates to a method for evaluating mitochondrial function in organs and tissues other than the kidneys of a subject, comprising the steps of: calculating the ratio of blood urea nitrogen (BUN) to blood creatinine (CRE) concentration (BUN / CRE) of the subject; and using the calculated ratio (BUN / CRE) to estimate the mitochondrial activity in organs and tissues other than the kidneys of the subject.