25 results about "Measurement scales" patented technology

The invention provides a full-parameter calibration method suitable for MEMS-IMU array temperature compensation, and the method comprises the steps: building an inertial measurement reference through an inner and outer frame rotating shaft, and enabling each MEMS-IMU in a full-temperature range to have a unified measurement scale; secondly, a more comprehensive error model is established for the low-precision MEMS-IMU, besides conventional gyroscope / accelerometer scale factors, mounting angles and zero parameters, an error model considering gyroscope / accelerometer scale factor asymmetry, accelerometer lever arm and time asynchronous errors is established, and the error model is established; the effectiveness of the temperature compensation work under the dynamic condition and the comprehensive navigation performance of the MEMS-IMU array system are ensured; and finally, zero angular velocity measurement is introduced, angular velocities in three directions of an inertial measurement coordinate system are all zero under a static condition, and when the inner shaft or the outer shaft rotates, the angular velocity in the vertical direction is zero, so that higher stability of MEMS-IMU output at different temperatures is ensured, and when a certain IMU in the array fails, the stability of the MEMS-IMU output is ensured. And the whole inertial measurement system works stably and reliably.

The invention discloses an AI model-oriented causal inference enhanced data preprocessing system, and relates to the technical field of data processing. Registering the time scale attribute and the quality auditing rule of each variable through a mode definition module; the time coordinate system correction module is used for performing time alignment on the multi-scale original data by taking a unified task time scale as a benchmark, and constructing an undistorted analysis reference system; and the measurement scale correction module quantitatively scores the measurement quality of the hybrid factors according to a quality auditing rule, and performs complete adjustment, discount adjustment and abandon adjustment on the high-quality, medium-quality and low-quality hybrid factors respectively. And the data output module processes the data according to the determined strategy, and outputs an enhanced data set with a high causal signal-to-noise ratio and a causal diagnosis report. According to the method, through an ordered process of firstly correcting the time and then correcting the degree, the accuracy of causal effect evaluation and the robustness of the model are improved, and automatic and interpretable data preprocessing is realized.

The invention discloses a small and medium-sized enterprise digital transformation method based on SEM and fsQCA. The method comprises the following steps: obtaining samples and data of a target industry; a quantitative method is adopted through questionnaire survey, and variables are quantified by adopting a Like five-point scale; symmetrical and asymmetrical modeling is carried out on the measuring scale; carrying out comprehensive inspection and evaluation analysis on the proposed model; the enterprise digital transformation method has the beneficial effects that the organization phenomenon is understood in detail by integrating symmetric and asymmetric statistical tools, that is, SEM and fsQCA methods are integrated, so that small and medium-sized enterprises are helped to realize digital transformation, the possibility and interaction of organizations can be deeply informed, and the transformation efficiency is improved. The inherent limitation related to a symmetric method is solved, small and medium-sized enterprises, policy formulators and employees are guided to promote sustainable development practice by using digital technology, dynamic ability and a digital platform, and transition of the small and medium-sized enterprises from a simulation process to a digital process is promoted.

The application discloses a kind of comprehensive metrological verification device for chemical instrument, it is related to metrological equipment detection technical field, comprising: shell, the shell inside is equipped with four support platform, the shell top is equipped with weighing verification subassembly, the shell includes lower shell, the lower shell top is fixedly connected with upper shell, the lower shell inner bottom and upper shell inner top are rotatably connected with middle shaft.The application is used, the weighing verification subassembly is placed in different weight weight test measurement scale in different weighing range of weighing accuracy, then whether the measurement scale weighing surface is bent and deformed in assembling and using process is detected by matrix range finder, the weighing accuracy of measurement scale is strictly controlled, and in the weighing process, it can be realized that weight is placed on measurement scale alone for verification, ensures that the verification accuracy solves the problem that manual verification is inconvenient, ensures that measurement scale will not appear measurement deviation in chemical experiment process.

The application discloses a power distribution system fault prediction method based on fractal theory prediction and BP neural network classification, collects current data of a line to be predicted in a power distribution system, and performs fractal prediction. The fractal prediction comprises the following steps: S1, establishing a current history sequence, obtaining an accumulated sum sequence and a measurement scale; S2, performing linear regression on the accumulated sum sequence curve in a double logarithmic coordinate system to obtain a fractal dimension; and S3, performing current value prediction of future time. After the fractal prediction, the actual current value is measured, the difference between the actual value and the predicted value is calculated, the BP neural network is inputted, and a fault prediction result is obtained. The power distribution system fault prediction is performed by adopting the method combining fractal theory prediction and BP neural network classification, the method has the characteristics of high accuracy, and is suitable for fault early warning and troubleshooting of a bidirectional power flow and a multi-party participated smart grid.

The invention provides an AP measurer, a thighbone osteotomy system and a thighbone osteotomy method, and relates to the technical field of thighbone osteotomy. The AP measurer comprises a base, a measuring main body, a mounting bracket and a probe, the measuring body is connected with the base and provided with first measuring scales. The mounting bracket is slidably connected to the measuring body in a first direction. The probe is slidably connected to the mounting bracket along a second direction, and the first direction is perpendicular to the second direction. A first post-parameter positioning hole is formed in the measuring main body and is used for post-parameter measurement; a first front parameter positioning hole is formed in the mounting bracket and is used for front parameter measurement; the front parameter measurement and the rear parameter measurement share a first metering scale. The AP measurer is suitable for front parameters and rear parameters and is compact in structure, one set of device can be flexibly used for different scenes, the front parameters and the rear parameters share one set of metering scales, measurement is accurate, and misoperation is avoided.

Relates to the field of subway construction, and discloses a bogie current collector height measuring tool, which is placed at the upper end of a carbon slide plate of a current collector and comprises a measuring plate, a height measuring device and a height measuring device, the measuring ruler is inserted into the measuring plate and is perpendicular to the measuring plate; the measuring plate is provided with a mounting groove used for placing the measuring ruler. The lower end of the measuring ruler abuts against a support on the current collector, and a fixing mechanism used for fixing the measuring ruler is arranged on the side, far away from the installation groove, of the lower end of the measuring plate, so that it is ensured that the measuring ruler can accurately reflect the height of the current collector, and the measuring precision is greatly improved; the measuring ruler can be stored, and the phenomenon that the measuring ruler is lost when not used can be prevented.

The utility model relates to the technical field of sorting devices, and discloses an intelligent sorting device for industrial manufacturing, which comprises a base and further comprises a conveying device fixedly mounted on the upper surface of the base, a connecting plate is hinged to one side of the conveying device, and a measuring scale is arranged on the upper surface of the connecting plate; and the fixing assemblies are symmetrically arranged outside the connecting plate. According to the utility model, through the arrangement of the fixing assembly, the measuring scale can be effectively fixed, meanwhile, a worker can conveniently disassemble, replace and overhaul the measuring scale, the disassembly and assembly efficiency of the measuring scale is effectively improved, and through the arrangement of the adjusting assembly, the inclination angle of the measuring scale can be conveniently adjusted, so that the measuring scale is convenient to disassemble and assemble. By arranging the sorting assembly, food can be effectively sorted, manual operation of workers is not needed, the food sorting efficiency is effectively improved, the workload of the workers is relieved, and the overall practicability of the device is improved.

The utility model discloses a funnel chest measuring scale, which comprises a rectangular scale and a cylindrical scale, the rectangular scale is vertically connected with the cylindrical scale, the cylindrical scale is connected with a fixing frame, the fixing frame is fixed on the rectangular scale, the front side of the fixing frame is provided with a rubber limiting plate, and the rubber limiting plate is connected with the rectangular scale. The rectangular scale and the cylindrical scale are in sliding connection, the length of the rectangular scale is 20 cm, the width of the rectangular scale is 1 cm, and scale marks are arranged on the rectangular scale. According to the funnel chest measuring scale, the rectangular scale body and the cylindrical scale body which are vertically connected are adopted, relevant data of the funnel chest of a patient can be conveniently measured, compared with traditional tape measurement, the measured data are more accurate, and the whole measuring scale is simple in structure, can be operated with one hand and better meets the actual use requirement.

The water level delay anomaly detection method for water conservancy big data in this application first pre-processes the water level data. By standardizing the water level data, the water level data is made uniform in time density and uniform in numerical measurement standards. The dynamic time difference bending algorithm is used to match the upstream and downstream water level data to make their changing patterns consistent. Then, the time series with the highest similarity is found in the matched water level data by the longest common substring method. The water level delay is obtained by averaging the difference in the time attributes of the upstream and downstream water level data in the common substring. The relationship between the upstream water level value and the previous downstream water level value and the current downstream water level value is used to establish a water level relationship model through support vector regression. The water level prediction value is obtained using the water level relationship model. Then, the residual between the actual value and the predicted value is calculated. The water level anomaly is obtained by analyzing the distribution model of the residual. The accuracy and precision of water level delay anomaly detection are greatly improved.

A method for applying a measurement scale to a linear profile rail guide carriage surface, the guide carriage being configured to be guided on a guide rail linearly and longitudinally toward the guide rail and having a first side surface extending longitudinally, the measurement scale including at least one track extending linearly and longitudinally, including several mirror regions and marking regions arranged alternately one behind the other, uses a pulsed laser to generate a laser beam and introduces a microstructure in a first region corresponding to at least one first side surface marking region. A sequence of light pulses is directed at the first region so that the laser beam is moved two-dimensionally relative to the first region to irradiate successively different subregions of the first region by the light pulses. Each different irradiated subregion has an overlap in, or transverse to, the longitudinal direction with at least two other irradiated subregions.

The invention relates to a position measuring device for detecting the relative position of two objects, which can be moved relative to each other along a translational main movement direction and in further degrees of freedom. A scale carrier, which extends longitudinally along the main movement direction, has a first, a second and a third surface, by which surfaces a plane is respectively defined and in each of which at least one measurement scale is respectively arranged. A scanning structure assembly, which is movable relative to the scale carrier, comprises a plurality of scanning units, which are configured for generating a movement-dependent position signal from a scan of the measurement scales, wherein at least one scanning unit is assigned to each surface. The plane defined by the second surface divides the surrounding space into two half-spaces, wherein the first surface with at least one measurement scale is arranged in one of the half-spaces and the third surface with at least one measurement scale is arranged in the other half-space.

The utility model provides a water conservancy project pipe -in -place wire -laying device relates to pipe -in -place wire -laying technical field, the utility model discloses a measurement casing, one side outer wall of measurement casing is fixedly connected with the swivel plate along the horizontal direction, the output of swivel plate is fixedly connected with the tape roll along the horizontal axis direction, the outer circumferential surface of tape roll is wound with the measurement scale band, one end of measurement scale band is fixedly connected with the end of tape roll. The utility model discloses, through setting up detachable main counter weight and vice counter weight, the flexible adjustment of counter weight is realized with cooperation connecting device. When outdoor wind power is bigger, can install vice counter weight through the cooperation of rectangular connecting block and rectangular slot fast, utilize the clamping structure of wedge -shaped clamping block and clamping groove to ensure that the connection is stable, significantly increase the overall counter weight, effectively offset the impact of wind power to the scale band, avoid the scale band to shake, ensure that the measurement scale band always keeps vertical straight state in the wire -laying process, improve the accuracy of pipe -in -place path measurement.

The utility model discloses a scale tool for measuring shot blasting craters, which relates to the field of quality detection and comprises at least one scale mother ruler and at least one scale son ruler matched with the scale mother ruler. The scale sub-scale is provided with diameter marks, inner diameter measurement scales and outer diameter measurement scales of different shot blasting craters, and length marks and length measurement scales of different lengths, and is used for measuring the sizes of the shot blasting craters; the scale sub-scale is embedded into the hollow area of the scale main scale; the scale mother ruler comprises at least two adjacent measuring edges, the measuring edges are provided with scale marks, and the scale marks are used for providing standard measurement dimensions. According to the shot blasting crater scale tool, the measurement convenience of the shot blasting crater scale tool is improved through the embedded combination mode of the scale mother ruler and the scale son ruler, meanwhile, different shot blasting crater measurement scales are arranged on the scale son ruler, the measurement requirements of various shot blasting craters can be met, and the measurement efficiency of the shot blasting crater scale tool is improved.

The present application relates to the technical field of electronics, and discloses a ranging measurement scale detection method and apparatus for a ranging device, a device, and a storage medium. According to the present application, a reference ranging device is utilized to observe distances between second observation points and a first observation point in two phases, and determine, on the basis of the results of the two phases of observation, reference distance information between the corresponding second observation points and the first observation point; different ranging devices to be detected are sequentially utilized to perform two phases of observation on the distances between the second observation points and the first observation point, and observation distance information between the corresponding second observation points and the first observation point detected by the ranging devices to be detected is determined on the basis of the results of the two phases of observation; measurement scale data corresponding to the ranging devices to be detected is determined on the basis of observation distance information between the second observation points and the first observation point detected by the ranging devices to be detected and reference distance information between the second observation points and the first observation point; and a ranging device to be detected the measurement scale data of which meets a preset requirement is determined as a target ranging device.

The invention provides a germplasm screening method. The germplasm screening method comprises the following steps: acquiring a preliminary screening sample set containing multi-phenotype data; performing normalization processing on the phenotype value to eliminate heterogeneity between characters; calculating a comprehensive score of each sample based on the normalized value; and finally, screening out an optimal sample set according to the score. Through an automatic normalization and comprehensive scoring process, the problem that multi-character data is difficult to integrate due to different measurement scales and genetic backgrounds is effectively solved, breeders are liberated from tedious and subjective manual judgment, a set of standard and efficient large-scale germplasm screening scheme is formed, and the method is suitable for large-scale germplasm screening. And the accuracy and efficiency of excellent germplasm resource mining are obviously improved.

The application discloses a kind of mine equipment intelligentization grade automatic evaluation method and system, belong to mine equipment grade evaluation technical field.The method includes: the operation data of mine equipment in preset period is collected;From the operation data, calculate evaluation characteristics, including automation degree characteristics, model capability characteristics, decision-making mode characteristics, abnormal response characteristics and prediction capability characteristics;The evaluation characteristics are compared with the preset L0-L5 grade determination rule, or input into the pre-trained classification model, and the intelligentization grade is output;The evaluation results are visualized and supported across system comparison.The application also discloses an evaluation system for realizing the above method.The advantage of the application is that the objective, automatic and quantitative evaluation of the intelligentization level of mine equipment is realized, and all indicators can be directly obtained from system log;The evaluation results are reproducible, traceable and horizontally comparable, providing a unified measurement scale for industry benchmarking, customer selection and product upgrading.

The invention discloses a deformation detection device for a gas cylinder hydrostatic test, which comprises a base, a turntable is rotatably mounted above the base, a centering clamping assembly is arranged on the turntable, a first motor is arranged below the base, a rotating shaft is mounted at the driving end of the first motor, the upper end of the rotating shaft penetrates through the base and is fixedly connected with the lower wall of the turntable, and the lower end of the rotating shaft penetrates through the base and is fixedly connected with the lower wall of the turntable. The invention relates to the technical field of gas cylinder detection, a detection assembly of the device can rapidly detect radial deformation of a gas cylinder under the action of water pressure through ingenious cooperation of a telescopic rod, a mounting cylinder, a detection head and a first spring, measurement scales are arranged on the detection head, and the detection accuracy is improved. According to the gas cylinder deformation measurement device, deformation data can be directly and accurately read, errors possibly caused by manual measurement are effectively avoided, the measurement precision and reliability are greatly improved, and more accurate data support is provided for gas cylinder quality evaluation.

The application provides a germplasm screening method, comprising the following steps: obtaining a preliminary screening sample set containing multi-phenotype data; performing normalization processing on the phenotype values to eliminate heterogeneity between traits; calculating a comprehensive score of each sample based on the normalized values; and finally screening out a preferred sample set according to the score. Through the automatic normalization and comprehensive scoring process, the problem that multi-trait data is difficult to integrate due to different measurement scales and genetic backgrounds is effectively solved, the breeder is liberated from tedious and subjective manual judgment, a standard and efficient large-scale germplasm screening scheme is formed, and the accuracy and efficiency of excellent germplasm resource mining are significantly improved.

The subject of the application is a system for symmetrical adjustment of carrier straps, intended specifically for backpacks. The solution is characterized by a sequence of markers marked on the surface of the carrier strap (1) of indefinite length, creating a measurement scale. This system includes a reference point (3), which serves as an orientation indicator for the position of the adjustment buckle (2). Using the measurement scale together with the reference point (3) allows the user to immediately visually verify the position of the buckle (2) on both straps simultaneously.

A method for making an absolute position measurement scale structure which comprises a substrate having a scale track extending along a measurement dimension, the scale track comprising a series of scale features, the method comprising making the scale features via the following two processes: a process configured to alter the substrate within the scale track at regularly spaced locations along the measurement dimension, according to a predetermined spatial period p, so as to form a plurality of primary features; and a process configured to alter the substrate within the scale track at plurality of irregularly spaced locations along the measurement dimension so as to form secondary features.

The invention provides a method and system for measuring a wind field at an air-drop track, and belongs to the technical field of air-drop. According to the method, the three-dimensional space array is constructed through the unmanned aerial vehicle group, high-precision measurement and dynamic modeling of wind field parameters are achieved, then, the wind field distribution model at the air-drop trajectory is constructed, the model can accurately reflect the spatial change characteristics of the wind speed and the wind direction, a scientific basis is provided for air-drop task planning, the material delivery accuracy is effectively improved, and the method is suitable for large-scale popularization and application. The method reduces the influence of a complex wind field on task execution, fully utilizes the attitude data of the unmanned aerial vehicle, reduces the system load and equipment cost, improves the cruising ability and system economy of the unmanned aerial vehicle, and finally, can flexibly adjust the measurement scale and precision according to the task requirements, adapts to the wind field measurement tasks in various complex terrains and environments, and improves the measurement efficiency. The method greatly improves the precision and efficiency of wind field measurement, is widely suitable for the scenes of military material delivery, disaster rescue and the like, and guarantees the high success rate and economic feasibility of tasks.

The utility model relates to the field of engineering measurement, and discloses an engineering measuring scale convenient for field measurement, which comprises a main measuring scale, the side surface of the main measuring scale is slidably connected with an auxiliary measuring scale, the upper surface of the main measuring scale is rotatably connected with an angle measuring scale through a rotating shaft, and the upper surface of the main measuring scale is slidably connected with a sliding block. The side surface of the sliding block is fixedly connected with a first supporting block, the side surface of the angle measuring ruler is fixedly connected with a second supporting block, the inner wall of the second supporting block is rotationally connected with a connecting rod, and the other end of the connecting rod is rotationally connected to the inner wall of the first supporting block. According to the invention, length measurement and angle measurement are integrated, and carrying is convenient, so that the measurement efficiency is improved, and convenience is provided for field measurement.

The invention provides a category adaptive seismic data clustering method and system, and belongs to the technical field of seismic exploration. The method comprises the steps of obtaining a to-be-processed data sample set based on pre-processed seismic data; obtaining seismic attributes based on the clustering task demand parameters and the to-be-processed data sample set; establishing a joint metric function based on seismic waveform data and corresponding seismic attributes in the preprocessed seismic data; and based on the joint metric function and a preset determination category threshold, performing clustering classification on each piece of to-be-processed sample data in the to-be-processed data sample set to obtain a clustering result. According to the method and the system, correlation coefficients are used as judgment standards of clustering categories, more attention is paid to morphological differences among different data, and the method and the system have remarkable category interpretability. And when the adaptive category number is determined, the algorithm is used for self-determination according to a measurement standard, so that the uncertainty of a clustering result is effectively reduced, and the stability between data of the same category is improved.