56 results about "Measurement evaluation" patented technology

The invention provides an intelligent construction method for a water conservation forest project in a loess plateau area, and relates to the field of forestry ecological restoration and water and soil conservation projects. The method comprises the following steps: collecting and carrying out normalization processing on various original physical quantities based on a space-time sliding window to obtain normalized values of the various physical quantities; constructing a composite physical state function based on the normalized values of various physical quantities, introducing a disturbance propagation response function to construct a measurement evaluation function, and performing spatial threshold screening processing based on the measurement evaluation function to generate a planting candidate point set; generating a spatial aggregation planting block set based on the planting candidate point set; and determining planting parameters based on the gradient change condition of the measurement evaluation function in the spatial aggregation planting block so as to execute planting operation. The problems that a traditional water conservation forest engineering construction method lacks modeling of spatial disturbance and neighborhood consistency, construction parameter configuration lacks intelligent adjustment, and a measurement-analysis-decision-execution closed loop structure is not formed in the whole process are solved.

The invention discloses an underwater image restoration method based on polarization imaging and low-frequency filtering, and the method comprises the steps: S1, collecting polarization images of different turbid water bodies at three angles through an underwater polarization imaging experiment platform, and calculating a Stokes vector of an underwater target scene; s2, calculating a polarization degree and a polarization angle image of an underwater target scene according to the Stokes vector, and establishing a target light model according to a relation of polarization information; s3, based on the low-frequency characteristics of the background light, extracting low-frequency background light components of the turbid polarization image at each angle, and calculating a corresponding background light Stokes vector according to the low-frequency background light components; and S4, the processed parameters are substituted into the imaging model, and the optimal cut-off frequency of the filter is adaptively determined in combination with enhanced measurement evaluation indexes, so that high-quality underwater image restoration is realized. According to the method, texture features and edge details of more target areas can be effectively restored.

The invention discloses a measurement and evaluation method and system for double analysis of the aging state of a cable, and belongs to the technical field of nondestructive testing of the insulation state of electrical equipment, and the method comprises the steps: obtaining a broadband dielectric spectrum of a corresponding aging sample in any aging period, and constructing low-frequency dielectric loss data related to a plurality of aging samples; obtaining group data of a standard measurement sample corresponding to any aging sample, and constructing oxidation data about a plurality of standard measurement samples; acquiring a dielectric spectrum space charge distribution diagram based on the low-frequency dielectric loss data, and acquiring an oxidation product concentration thermodynamic diagram based on the oxidation data; obtaining an aging grading result based on the low-frequency dielectric loss data and the oxidation data; and outputting a three-dimensional aging measurement evaluation report based on the dielectric spectrum space charge distribution diagram, the oxidation product concentration thermodynamic diagram and the aging grading result. According to the measurement and evaluation method and system for double analysis of the aging state of the cable, accurate quantification of the aging degree is achieved by synchronously analyzing the dielectric response and the chemical structure change.

The present invention relates to a radar two-dimensional angle measurement evaluation method based on amplitude and phase errors. By analyzing the influence of materials such as bumpers in the radar deployment environment on angle measurement, the method obtains the amplitude and phase errors under the two-dimensional angle FOV at the actual radar deployment position, adds them to the two-dimensional angle measurement model for angle estimation, and obtains the radar azimuth and pitch angle, thereby accurately analyzing the radar two-dimensional angle measurement.

The invention discloses a high-voltage cable buffer layer ablation degree evaluation method and device, and belongs to the technical field of high-voltage cable detection. Aiming at the problems of high false detection rate and low positioning precision of the existing detection technology, the method provides three steps of detection processes: firstly, drilling holes along preset intervals of a cable to take gas, analyzing gas components by using a gas chromatograph, and screening sections containing ablative characteristic gas; secondly, an infrared thermal imager is adopted to accurately position temperature abnormal points, and gas is remeasured; and finally, determining a gas weight in combination with an optimal and worst method, constructing a quantitative model through a multi-criterion compromise solution sorting method, calculating an abnormal point comprehensive score and dividing risk grades. According to the method, through a cooperative detection mechanism of gas primary screening, infrared positioning and retest evaluation, the detection efficiency and accuracy are remarkably improved, early ablation symptoms can be recognized, and the omission ratio is reduced.

An online measurement gear precision evaluation method considering geometric errors of a large-specification gear making machine tool is characterized in that a measurement path is planned based on the large-specification machine tool which is provided with an online measurement system and contains X, Y, Z and C axes, an online measurement system geometric error model is established, the influence of the geometric errors on a measurement result is analyzed, and the precision of the large-specification gear making machine tool is evaluated. And obtaining a theoretical comparison position corresponding to the actual measurement point, and evaluating the processed measurement result. A measurement path is planned according to an involute helical gear measurement principle and shaft configuration characteristics of a large-specification gear making machine tool; establishing a geometric error model in combination with the measurement path; and analyzing the influence of the geometric error on the measurement result, correcting the measurement result, and evaluating the corrected measurement result. According to the invention, the online measurement evaluation accuracy of the large-specification gear making machine tool is improved.

The invention belongs to the technical field of gynecological examination instruments, and provides an automatic pelvic organ prolapse measurement and evaluation system which comprises a scale measuring ruler, a pressure sensor and an automatic evaluation panel. A pressure sensor is embedded in the far end of the measuring scale and fixed in a groove in the far end of the measuring scale, the near end of the sensor is connected with an automatic evaluation panel through a wire, the near end of the measuring scale is embedded in a locking mechanism of the automatic evaluation panel, and different indicator lamps on the automatic evaluation panel feed back data of the pressure sensor qualitatively. The plurality of physical keys control startup, measurement and automatic evaluation calculation, the loudspeaker feeds back evaluation data, and the display screen can visually interact the evaluation data with doctors; the pressure sensor is used for feeding back contact, reading errors can be reduced, various data of POP-Q scores can be conveniently, rapidly and accurately measured, the data are automatically analyzed to evaluate POP-Q staging, work of clinical operators can be greatly facilitated, and evaluation time is shortened.

The invention provides a multi-stage rotor and stator measuring and assembling method based on unification of a measuring reference and an assembling reference, and particularly belongs to the technical field of aerospace engines. Measurement and assembly benchmark errors can be reduced through measurement and assembly integration, evaluation data are fed back to a measurement and assembly system, aerospace engine rotor and stator assembly precision regulation and control based on data guidance can be achieved, unification of a measurement benchmark and an assembly benchmark can be guaranteed, benchmark deviation between assembly and measurement can be effectively removed, and measurement accuracy is improved. Actual measurement of the rotor and the stator can be achieved while installation and detection are conducted, data can be used for geometric error evaluation and assembly prediction, and feasibility of the method for achieving rapid measurement evaluation and accurate assembly prediction of geometric parameters while installation and detection is conducted is proved. The device comprises a measuring rotary table, an assembling chuck, a center and inclination adjusting table and a measuring sensor. A center and inclination adjusting table is installed on the top face of the measuring rotary table, an assembling chuck is arranged on the top face of the center and inclination adjusting table, stand columns are fixedly installed on the two sides of the top face of the measuring rotary table, cross arms are installed on the two stand columns, and measuring sensors are installed at one ends of the cross arms.

The present disclosure relates to a communication method and device, user equipment, network equipment, and storage medium. The method comprises: detecting whether a reference signal satisfies a measurement relaxation condition; and performing measurement relaxation processing on measurement of the reference signal in response to the reference signal satisfying the measurement relaxation condition. According to the present disclosure, when the UE satisfies the measurement relaxation condition, at least one of the measurement evaluation period and the indication period of the reference signal is adjusted to be longer, the measurement frequency of the reference signal is reduced, the UE enters the power saving state, and the measurement of RLM and BFD is relaxed, thereby achieving the effect of power saving.

A distributed resource electric quantity trusted measurement evaluation method based on a block chain technology relates to the technical field of electric energy quality monitoring, and specifically comprises the following steps: acquiring real-time data of distributed power supply equipment; preprocessing the obtained real-time data, and then uploading the data to a block chain node; the data receiver verifies the data of the block chain node by adopting a Byzantine fault-tolerant consensus; if verification fails, data acquisition, data preprocessing, uploading to the block chain node and data verification are performed again; if the verification is passed, the data of the block chain node is encrypted and transmitted to the electric quantity evaluation model through a transmission protocol; performing trusted measurement evaluation on the data by the electric quantity evaluation model to obtain a trusted measurement score; converting the trusted measurement score into a trusted measurement grade; corresponding processing strategies are executed according to different trusted measurement levels; the method is used for solving the problems that traditional evaluation training is high in cost and an evaluation result is inaccurate.

The embodiment of the invention relates to equipment, a device and a method for measuring unloading. In an aspect, a terminal device stores system information including at least one condition for applying a measurement offload from a first type of radio to a second type of radio. Based on the system information, the terminal device evaluates whether at least one condition is satisfied according to at least one measurement performed in the first state. Based on determining that the at least one condition is satisfied, the terminal device applies measurement offloading in accordance with a state transition from the first state to the second state. Therefore, the power consumption of the terminal device is reduced.

Aspects of the present disclosure relate to user equipment (UE) handover from a network energy saving cell. The timelines of different events allow the UE to make a reliable decision regarding performing a handover to a target cell, such as by providing the UE with information that there is limited time before the source cell is dormant and thus a measurement or evaluation that finds the target cell for handover can continue. For example, a sleep remaining time (RTS) value may be defined that indicates an amount of time the source cell remains active after sending a cell-off indication to the UE. The source cell enters sleep only after the RTS time indicated in the cell off indication has elapsed. The UE remains active in the source cell until the RTS time elapses and performs measurements and measurement evaluations of candidates.

The application discloses a kind of complex curved surface standard piece's multi-feature point cloud data automatic segmentation method, belong to geometric parameter digitization measurement evaluation field.The application implementation method is: according to the information obtained by analytic MBD model, the corresponding relationship between each surface name coding, surface basic attribute, GD&T is established, and the surface feature library of each surface is established;The MBD model of complex curved surface standard piece is converted into the theoretical point cloud of complex curved surface standard piece, and the point of surface is subdivided according to dense, obtains the theoretical point cloud M nom , complete the file format conversion of MBD model;Based on the ICP improved algorithm of fusion geometry feature, complex curved surface standard piece measured point cloud is registered with theoretical point cloud;According to surface feature library, the segmentation of measured point and nearby point of surface point cloud is realized, and further point cloud segmentation result is carried out point cloud segmentation, and the measured point cloud of complex curved surface standard piece containing multiple geometric parameters is realized automatic high-precision segmentation.

An intelligent splicing method for the measurement atlas of grid-frame buildings based on BIM and SLAM positioning, comprising the following steps: determining the self-pose of a quadruped robot by combining the BIM model of the grid-frame building with the SLAM positioning algorithm to obtain its position information; obtaining the horizontal positions of the projections of all grid-frame nodes through the BIM model of the grid-frame building; planning a path while scanning with a multi-line lidar according to the position information to reach the initial point; reaching the projection position of the initial point, measuring the distances between the grid-frame node and its adjacent nodes, comparing the measurement data with the information of the nodes in the BIM model, marking the error if there is an error, and measuring the data of the next node if there is no error, while saving the currently measured atlas data and performing splicing; repeating the steps until all nodes have been measured and the atlas data has been saved, and outputting a measurement evaluation report. The present invention not only realizes the health assessment of grid-frame buildings efficiently and precisely, but also can be adaptively applied to grid-frame buildings in complex scenarios.

The invention discloses a child high-low shoulder scoliosis measurement and evaluation device and a measurement and evaluation method, and particularly relates to the technical field of spine measurement, the device comprises a base on which a linear movement module for driving a pedal table to keep horizontal movement is assembled; a vertical moving module is fixedly installed on the base, and a machine base is fixedly installed on the vertical moving module. A cross-shaped track frame is fixedly installed on the side, facing the pedal table, of the machine base, the cross-shaped track frame comprises four track parts, a high-definition camera is arranged on each track part in a sliding mode, and the high-definition cameras are driven by first lead screws rotationally arranged in the track parts. According to the invention, through accurate visual evaluation, a reliable basis can be provided for subsequent treatment and training.

The invention discloses a knowledge distillation-based voltage metering reliability evaluation method in a complex environment. The method comprises the following steps of collecting related data of voltage metering; preprocessing the data; constructing a deep neural network model for voltage reliability evaluation; performing model compression through knowledge distillation; training the deep neural network by using the training set data, and optimizing the network weight; testing the model by using the test set data; and judging whether the target voltage is reliable or not through threshold comparison. According to the invention, a plurality of units such as the voltage transformer, the electric energy meter, the secondary circuit and the like are incorporated into the evaluation model, so that the reliability of voltage metering is evaluated more comprehensively; deep neural network modeling is adopted, the model is compressed through a knowledge distillation method, the calculation efficiency and precision of the system are effectively improved, and the evaluation model can adapt to an industrial personal computer platform with limited resources; the method can adapt to various environment changes, provides more accurate and stable voltage metering evaluation, and remarkably improves the reliability of a voltage metering system.

The invention relates to the technical field of building engineering construction, and discloses a foundation measurement system and method for building engineering construction, synchronous measurement is carried out on a construction area through a multi-source foundation measurement unit, original foundation measurement data are obtained, time alignment and space unified calibration are carried out on the data, and a standardized measurement data set is formed; a foundation space continuous model is constructed on the basis, spatial interpolation and error suppression processing are carried out on discrete measurement points, a foundation three-dimensional structure data set containing space credibility parameters is generated, foundation bearing characteristics and differential settlement characteristics are further analyzed on the basis of the foundation three-dimensional structure data set, and the foundation three-dimensional structure data set is obtained. And forming a foundation mechanical characteristic data set, and generating a foundation measurement evaluation result and construction correction parameters in combination with the construction design reference parameters. The space continuity and reliability of the foundation measurement result can be improved, and an effective basis is provided for construction control and parameter correction.

A radiated electromagnetic noise estimation apparatus (3) has a configuration comprising: a first data acquisition unit (11) that, when a reference device is installed at a position separated from a first measurement device (1) by a first distance, acquires first data, which is data obtained by measuring radiated electromagnetic noise of the reference device using the first measurement device (1); and a second data acquisition unit (12) that, when the reference device is installed at a position separated from a second measurement device (2) by a second distance shorter than the first distance, acquires second data, which is data obtained by measuring radiated electromagnetic noise of the reference device using the second measurement device (2). The radiated electromagnetic noise estimation apparatus (3) further comprises: a third data acquisition unit (13) that, when an evaluated device, which is a device being evaluated, is installed at a position separated from the second measurement device (2) by the second distance, acquires third data, which is data obtained by measuring radiated electromagnetic noise of the evaluated device using the second measurement device (2); and a noise estimation unit (14) that, from the first data, the second data, and the third data, estimates radiated electromagnetic noise of the evaluated device when the evaluated device is installed at a position separated from the first measurement device (1) by the first distance.

The application relates to the technical field of building engineering construction, and discloses a foundation measurement system and method for building engineering construction, which synchronously measures a construction area through a multi-source foundation measurement unit, obtains original foundation measurement data, carries out time alignment and space unified calibration on the data, forms a standardized measurement data set, constructs a foundation space continuous model on the basis, carries out space interpolation and error suppression processing on discrete measurement points, generates a foundation three-dimensional structure data set containing a space reliability parameter, further analyzes foundation bearing characteristics and uneven settlement characteristics based on the foundation three-dimensional structure data set, forms a foundation mechanical characteristic data set, and generates a foundation measurement evaluation result and a construction correction parameter in combination with a construction design benchmark parameter. The application can improve the space continuity and reliability of the foundation measurement result, and provides an effective basis for construction control and parameter correction.

A terminal device performs a measurement related to a first base station while in a radio resource control (RRC) idle state or RRC inactive state. The terminal device performs an evaluation process, at least when not configured to determine whether the measurement satisfies a timing condition. The evaluation process determines whether at least one of a first condition a second condition met at a given point in time or during a given time period. The first condition relates to terminal device mobility, and the second condition relates to terminal device location with respect to a cell provided by the first base station. The terminal device sends, to a second base station, an indication of the measurement result and an indication of the evaluation process result. A network device receives and processes these indications from the terminal device.

A joint portion evaluating method for measuring and evaluating a joint state of a joint portion at which a first joint body and a second joint body are joined together, the joint portion evaluating method including the steps of: acquiring as a reference value a capacitance value of the joint portion in a reference measurement state serving as a reference for measurement conditions; changing a measurement state from the reference measurement state and acquiring as a measured value a capacitance value of the joint portion in a changed measurement state arising after the change of the measurement state; deriving as a measurement evaluation value a value obtained by referencing the measured value with the reference value; and performing an evaluation based on the derived measurement evaluation value.

The present application relates to a kind of detection methods of the included angle between inner raceway and rib of tapered roller bearing, comprising the following steps: the included angle between the big rib cone surface of bearing inner race and the raceway conical surface is alpha, the conical half angle of raceway conical surface is alpha 1, the conical half angle of big rib conical surface is alpha 2, and simultaneously establish geometric relationship model about included angle alpha;After angle conversion by geometric relationship model, alpha=alpha 1+alpha 2 is calculated;Using coordinate measuring machine measurement evaluation function, the conical half angle alpha 1 of raceway conical surface and the conical half angle alpha 2 of big rib conical surface are obtained, so that the included angle alpha is obtained.The present application adopts direct measurement method, can directly detect the included angle between inner raceway and rib of tapered roller bearing inner race, effectively solves the problem of the detection of the included angle between inner raceway and rib of tapered roller bearing inner race, provides strong technical support for product precision of production and manufacturing unit, and provides reliable and effective guarantee for main machine user installation and use.

[PROBLEM] Assist a user in evaluating measures without imposing an excessive burden on the user. [SOLUTION TO PROBLEM] A server plots a result of evaluating a plurality of measures by a plurality of evaluation items (FIG. 4(a)) in an evaluation value space having the plurality of evaluation items as coordinate axes (FIG. 4(b)), coordinate-transforms the evaluation value space by setting a weight for each of the plurality of evaluation items based on values information of a user (FIG. 4(c)), extracts a plurality of pairs of measures based on degrees of similarities of the plurality of measures in the coordinate-transformed evaluation value space (FIG. 4(d)), and creates a goodness distribution chart in the evaluation value space (FIG. 4(e)) based on results of relative evaluation by the user of goodness or badness between the measures included in each extracted pair, and transmits the chart to the user terminal.

The invention relates to a high-precision near-field laser radar cross section testing and evaluating method, which relates to the field of testing and comprises the following steps of: fixing a target to be tested on a rotary table with an upper rotary shaft, an arc shaft and a lower rotary shaft through an adapter; the rotary table is slidably or fixedly connected below the cross beam; a measuring device is fixed at the bottom of a testing frame with a transverse rolling shaft, a pitch shaft and an azimuth shaft through an adapter, and the testing frame can horizontally move up and down in multiple directions so that the measuring device can abut against a target in multiple angles and acquire laser radar scattering intensity voltage signals of the target; replacing the measured target with the standard board in the metering validity period, synchronously measuring the standard board, and obtaining a laser radar scattering intensity voltage signal of the standard board; the method has the advantages that high-precision measurement and evaluation of the near-field laser radar scattering cross section under different missile-target intersection distances, miss distance, measurement system postures and target postures can be realized.

An embodiment of the present invention discloses a method for measuring joint range of motion, belonging to the technical field of body measurement and evaluation. The method includes: obtaining a frontal human body image of a tester completing a preset test action collected by a 2D camera; extracting spatial coordinate data of joint marker points of the tester from the frontal human body image; according to the spatial coordinate data, calculating the average value of the absolute value of the length of the body part related to the joint to be measured of the tester from the initial state to the state where the preset test action is completed, and multiplying the average value by a preset coefficient to obtain a first length value; and recording the length of the body part in the state where the preset test action is completed as a second length value; dividing the second length value by the first length value and performing an inverse trigonometric function operation to obtain joint angle data; calculating a joint range of motion score according to the joint angle data. The embodiment of the present invention has high accuracy, low cost, simple operation, and saves time and effort.

The system for predicting the health and service life of rechargeable electrochemical cells consists of a measuring chamber (1), which contains a charging disconnector (2) and a discharging disconnector (3), a tested electrochemical cell (4), a camera (5) and a temperature measurement block (6), and further of a programmable source (7), a programmable load (8) and a control system (9), which is formed by a control circuit (10), a charging control block (11) and a discharging control block (12), and further of an evaluation system (13), which is formed by a data collection block (14), a parameter extractor (15), an evaluation block (16), a database (17), a reference values ​​block (18) and a results display block (19). The system for predicting the health and lifespan of rechargeable electrochemical cells, based on measurements from the charging and discharging process of a given electrochemical cell, evaluates the parameters of the equivalent circuit of the evaluated electrochemical cell.

The application relates to a model robustness and attack effectiveness measurement evaluation and score calculation method, which comprises the following steps: establishing an evaluation index system composed of a model capability evaluation index, an attack effect evaluation index and an attack cost evaluation index; evaluating the evaluation indexes in the evaluation system; and performing score calculation based on a project response theory and a Markov chain Monte Carlo method. The model robustness and attack effectiveness measurement evaluation and score calculation method can intuitively and comprehensively reflect the performance of an evaluation target and the performance difference between different models or attack algorithms, can be used for performance evaluation of various different structure models and various kinds of counter-attack algorithms, and has universality and flexibility.

The invention provides a mine deep underground engineering safety toughness evaluation method and system based on a cloud model, and belongs to the technical field of safety management. The method comprises the following steps: constructing a mine deep underground engineering safety toughness evaluation index system comprising a base layer index, a system layer index and a target layer index; the weight of each index is determined through system dynamics, uncertainty processing is performed on each index data by adopting a cloud model, and an index cloud picture is generated; a comprehensive evaluation cloud is obtained through a synthesis rule of a cloud model, and quantitative measurement evaluation on the safety toughness of the mine deep underground engineering is realized by combining an evaluation grade standard; the system comprises an index system construction module, a weight calculation module, a cloud model generation module, a cloud distance measurement module and a safety toughness level judgment module. According to the method, the problems of insufficient processing of uncertainty and strong subjectivity in a traditional evaluation method are solved, accurate quantitative judgment of the toughness grade is realized, and the accuracy and reliability of an evaluation result are improved.