17results about How to "Realize automatic measurement" patented technology

The invention discloses a workpiece attitude error compensation method and system based on a space angle and a TCSTRANS. According to the method, automatic sensing, seamless compensation and efficient machining of workpiece attitudes are achieved through the synergistic effect of three core technologies including automatic fitting of a space angle aligned by a laser plane, workpiece coordinate system correction of kernel translation and TCSTRANS characteristic coordinate system transformation supporting five-axis RTCP programming. An original machining program does not need to be modified, the operation complexity and the technical threshold are reduced, the machining precision, efficiency and process reliability are greatly improved, the method is particularly suitable for machining of a five-axis numerical control machine tool on precise workpieces, and the problems that in the prior art, manual experience is relied on, program management is disordered, and post-processing is complex are solved.

The utility model discloses a low power circuit integration junction box, including casing, modular interface array, embedded control module and safety protection module, wherein, the modular interface array contains at least three kinds of specifications test terminal, and each test terminal is connected with the measured circuit board through the elastic contact, embedded control module contains microprocessor, programmable signal generator and AD conversion unit. In addition, the low power circuit integration junction box still includes power module and wireless communication module. The utility model provides junction box through using S3C2451 embedded control processor to realize the automatic measurement and judgement of low power point fast, and can save the various measurement parameters of detected through programmable signal generator and AD conversion unit, then through wireless communication module carries out data transmission, and the convenient implementation detection result inquiry and transmission have improved the detection efficiency, and the detection result also has higher measurement accuracy and good repeatability.

The utility model discloses a hospital gown for visualizing PICC (Peripherally Inserted Central Catheter) catheterization condition, which can intuitively and efficiently confirm the condition of a catheterization position, monitor and feed back the current arm circumference condition of the catheterization position in real time, discover and handle abnormity in time, effectively improve the working efficiency of medical personnel, reduce the complication risk and improve the compliance of a patient. According to the technical scheme, the device is characterized by comprising a coat body, an observation piece and a measuring assembly, a visual groove used for exposing the PICC catheterization position is formed in the position, corresponding to the upper limb, of the coat body, the observation piece is of a sheet structure movably arranged on the visual groove, and the observation piece is arranged in a transparent mode; the measuring assemblies are arranged around the positions, corresponding to the upper limbs, of the clothes body so as to monitor and feed back the current arm circumference condition in real time, the working efficiency of medical staff is improved, the accuracy degree of measuring results is increased, the reliability degree of clinical auxiliary judgment is increased, the automatic measuring and reminding functions are achieved, and the working efficiency is improved. The patient or the accompanying person can also make basic judgment through the feedback.

The utility model discloses a vibration detection device for a tractor driving position. The vibration detection device comprises a test box, a bottom supporting structure, a counterweight supporting structure and a steering wheel conduction structure. According to the vibration detection device for the tractor driving position, the accelerometer, the gyroscope and the vibration acquisition sensor are used for performing real-time data acquisition in measurement of vibration parameters of the whole body of a tractor driver, and the controller uploads the data to a remote control center through the wireless communication module after the test is completed; the whole-body vibration combined weighted acceleration of the driver can be conveniently calculated; the bottom supporting structure, the balance weight supporting structure and the steering wheel conduction structure are used for carrying out multidirectional positioning and vibration conduction on the test box, a tester does not need to sit in a cab, and therefore unmanned testing is achieved; compared with a traditional measurement mode, the testing device is small in structure, automatic measurement of whole-body vibration parameters of the tractor driver under various road conditions and environments is facilitated, and the measurement efficiency is improved.

The invention discloses an automatic measuring device for measuring rotation precision of an inner ring and an outer ring of a small ball bearing, and belongs to the technical field of measurement. The automatic measuring device comprises a granite workbench, and an inner ring rotating part is embedded in the middle of the top of the granite workbench and can drive the inner ring of the measured bearing to rotate; a stand column and a top plate are arranged on one side of the inner ring rotating component, and a lifting component is arranged on the top plate to provide measurement load for a measured bearing. The aligning component is arranged at the lower end of the lifting component, so that interference errors during loading can be eliminated; an air tap and a turbine are arranged at the lower end of the aligning component and can drive the bearing outer ring to rotate; according to the invention, through comparative analysis of acquired data and a preset range, related parts are controlled to carry out remedy operation processing, the measurement stability is improved, the inner ring or the outer ring of the bearing can be respectively driven to precisely rotate on one instrument, the radial run-out and the axial run-out of the inner ring of the bearing can be indirectly and automatically measured, and the measurement accuracy is improved. And the radial run-out and the axial run-out of the bearing outer ring can be directly and automatically measured.

The invention discloses a numerical control machine tool precision state evaluation method, system and device and a medium, and relates to the field of numerical control machine tool precision evaluation, and the method comprises the steps: installing a plurality of measurement blocks at a plurality of preset positions of a numerical control machine tool workbench; determining coordinate data of each measurement block along X, Y and Z coordinate axis directions to form a plurality of groups of measurement data; and determining the positioning errors of the X, Y and Z coordinate axes, the straightness deviations of the X, Y and Z coordinate axes and the perpendicularity deviations of the X, Y and Z coordinate axes based on a plurality of preset positions and a plurality of groups of measurement data. The objective of the invention is to solve the problems of high cost, long time consumption and incapability of efficient and integrated measurement of key geometric precision measurement of a traditional method in precision detection of a numerical control machine tool.

The application provides a device and method for online automatic detection of grinding piece thickness of a double-end surface grinder, which comprises a proximity switch, a controller, a mechanical hand assembly and a measuring table assembly; the proximity switch is fixed at the end of the discharge port of the double-end surface grinder, and sends a signal to the controller when it detects a workpiece to be measured at the position; the controller controls the mechanical hand assembly to grab the workpiece to be measured and place the workpiece to be measured on a measuring position, and the measuring table assembly detects the thickness of the workpiece to be measured.

The invention discloses a point location coordinate automatic measurement method based on a user coordinate system in a CAD environment. The method comprises the steps that 1, a to-be-measured point location model is opened in CAD software; step 2, selecting a user coordinate system and a to-be-tested point set P in the to-be-tested point position model in CAD software; and step 3, performing coordinate calculation on the to-be-measured point positions Pi in the to-be-measured point set P under the user coordinate system by establishing direction control point positions under the user coordinate system, obtaining corresponding information of names and coordinate calculation of the to-be-measured point positions Pi, and completing automatic point position coordinate measurement based on the user coordinate system under the CAD environment. According to the method, automatic measurement of the point coordinates based on the user coordinate system in the CAD environment is completed through mathematical calculation, and the problems that the operation process of the to-be-measured point in the user coordinate system is complex, and the name of the original point is lost are effectively solved.

The application relates to a kind of magnet power current ripple measuring device and method, its device includes measurement probe, measuring coil and acquisition and calculation analysis system, measurement probe is the cylinder made of non-magnetic material, including column, coil slot and end, the through hole in the cylinder, the inner diameter is A, the outer diameter is B;Column is the skeleton main body of measurement probe, the upper part thereof is end, the coil slot is immediately below the end;End is located in the upper part of column, the height is D, the outer diameter is B;The outer diameter of coil slot is between A and B, for winding installation measuring coil;Measuring coil is N turns, N>=1, enameled wire is wound on the coil slot of measurement probe, the two ends of measuring coil are led out through coaxial cable;One end of coaxial cable is connected with the output of measuring coil, and the other end is connected with the input of acquisition and calculation analysis system.The application can not only measure the size of current ripple, but also can obtain real-time waveform data of current ripple in real time, and has high automation degree.

This utility model discloses a tire tread depth measuring device, including a main housing with a front ramp and a rear ramp connected to its front and rear ends, respectively. The main housing includes a base and a top cover connected to the upper end of the base. A camera, a laser emitter, and a press trigger mechanism are sequentially installed in the inner cavity of the base along the wheel travel direction. The top cover includes a first cover plate, a second cover plate, and a third cover plate. One end of the second cover plate has a first mounting slope, and the other end has a second mounting groove. A camera window opposite the camera and a laser window opposite the laser emitter are respectively installed on the bottom surface of the first mounting slope and the second mounting groove. A laser shielding device is installed at the opening of the second mounting groove. A dust removal mechanism is also installed in the inner cavity of the base. This device can automatically measure the tire tread depth with high stability and reliability, high efficiency, high accuracy, and high safety.

The invention discloses a system for evaluating a coronary stent inner lumen through photon CT single energy and metal artifact removal, and belongs to the technical field of medical instruments. The invention discloses a system for evaluating a coronary stent inner lumen through photon CT single energy and metal artifact removal. The system comprises a photon CT scanning module, a single energy imaging optimization module, a metal artifact removal module, an intelligent evaluation analysis module and a data storage module. The problem that in the prior art, image blurring is likely to occur, and judgment of the lumen stenosis degree is affected is solved. The method is high in artifact removal accuracy, can truly recover the lumen form, realizes automatic measurement of key parameters, introduces a standard phantom calibration model to calibrate the measurement result, further improves the measurement precision, automatically recognizes common complications based on the measurement parameters and image features, and clarifies the types, positions and degrees of abnormities. The change trend of the condition of the lumen in the stent is visually presented, potential complication risks can be found early, and the occurrence rate of adverse events is reduced.

The embodiment of the invention provides an ossicular chain size measurement method and device, a storage medium and a program product, and the method comprises the steps: obtaining a target mask image in response to a measurement request, and extracting mask images corresponding to three small bones from the target mask image; the three small bones comprise a hammer bone, an incus and a stapes bone; voxels of corresponding small bones are extracted from the mask image, and point cloud data of the small bones are constructed based on voxel coordinates; for any small bone, determining at least one key axis corresponding to the small bone based on the small bone point cloud data, and determining a plurality of key points corresponding to the small bone based on the at least one key axis; and based on the plurality of key points corresponding to the three small bones respectively, determining at least one piece of size data corresponding to the three small bones respectively and a position relationship corresponding to any two small bones. According to the technical scheme provided by the embodiment of the invention, the accuracy and efficiency of the size measurement of the ossicular chain are improved.

This invention relates to the field of blade measurement technology and discloses an automatic measurement method for tortuous and deformed blades. It aims to solve the problems of high labor costs, large measurement errors, low measurement efficiency, and scratch generation in existing methods. The solution mainly includes: positioning and clamping the blade to be measured on a corresponding fixture; obtaining the theoretical coordinate values ​​of multiple theoretical measurement points along the vector direction of the blade; establishing a coordinate system based on a six-point iteration method; using a coordinate measuring machine to detect multiple measurement points on various cross-sections of the blade; for each cross-section, performing optimal fitting calculations based on the corresponding measured points and theoretical profiles; and, in the coordinate system after optimal fitting for each cross-section, detecting the blade according to the actual measurement points corresponding to each theoretical measurement point to obtain measured coordinate values, and determining the dimensions of the blade based on the measured coordinate values. This invention achieves rapid, scratch-free automatic measurement, reduces labor costs, and improves the reliability of dimensional measurement, making it particularly suitable for aero-engine blades.

The application discloses a kind of medical image scale automatic measurement method, system, equipment and medium, it is related to image processing technical field.The method includes: scanning the target image to be detected, with the pixel value set of all scales in the target image to be detected as independent variable to construct the luminance function corresponding to scan line;The independent variable in the luminance function corresponding to scan line is linearly converted with angular frequency, and the luminance conversion function is obtained;Continuous wavelet transform is carried out on the luminance conversion function, and the continuous wavelet transform function is obtained;The pixel estimate in the continuous wavelet transform function is traversed in a loop, and the pixel estimate corresponding to the continuous wavelet maximum value is obtained;The pixel estimate corresponding to the continuous wavelet maximum value is used as the scale unit conversion factor of the target image to be detected.Through the above method and related system equipment, the application solves the problem of high network model data dependence and low adaptation based on artificial intelligence deep learning.

The invention discloses a capacitor voltage transformer fault identification method and system, and belongs to the technical field of power equipment monitoring. The method comprises the following steps: firstly, constructing a CVT broadband equivalent model containing distribution parameters and an n-type transformer topology; then extracting a composite characteristic parameter set fusing the broadband resonance characteristic and the power frequency electrical characteristic; establishing a mapping relation among the fault type, the damage depth and the characteristic parameters through simulation; and finally realizing non-intrusive accurate identification of the fault type and the damage depth of the CVT based on the mapping relation. According to the invention, through multi-dimensional feature fusion, the fault classification precision and the early fault detection capability are significantly improved, and the problems of operation risk and low efficiency of a traditional power failure test are avoided at the same time.

The application discloses a kind of straightness automatic measurement method and system of thickened end steel pipe, comprising the following steps: S1, the specification data of current steel pipe is collected;S2, control rotating mechanism drives steel pipe to rotate around axis;S3, the angle value of the current position of steel pipe is measured and the light strip image of surface laser;S4, the surface profile data of steel pipe is calculated;S5, the position and range size of thickened end of steel pipe are calculated by thickened part identification model;S6, the extension profile line of thickened end of steel pipe is calculated by pipe body profile extension model, and the continuous surface profile line data of corrected steel pipe is obtained;S7, the straightness value of steel pipe at current angle position is calculated;S8, in the rotation process of steel pipe, according to steps S3 to S7, obtain multiple straightness values of full length;S9, the maximum straightness value is calculated as the straightness value of thickened end of steel pipe.The application replaces existing manual measurement mode, realizes the straightness of automatic measurement thickened end steel pipe.

This invention relates to the field of aerospace manufacturing technology, addressing the technical problems of limited measurement range, insufficient ability to capture details of complex curved surfaces, and susceptibility to environmental factors inherent in single measuring devices. Specifically, it relates to a method and apparatus for three-dimensional measurement of the overall shape of a large aircraft based on multi-component collaboration. The method includes acquiring and registering the shape contour point cloud to obtain local shape contour point clouds of the entire aircraft from different local perspectives; registering the local shape contour point clouds and constructing a sparse pose map; and registering the local shape contour point clouds acquired from different local perspectives based on the sparse pose map to generate a complete overall shape contour point cloud of the large aircraft. This invention can register high-precision local point cloud data of the aircraft acquired by the measuring device, automatically generating point cloud data for the surface of large aircraft, thereby achieving high-precision and high-efficiency measurement of large and complex shapes, and further improving the manufacturing and assembly quality of aircraft.