588 results about "Diameter measurement" patented technology

The invention relates to the technical field of quartz product measurement, and particularly provides a quartz product diameter measurer and a quartz product diameter measuring method, and the quartz product diameter measurer comprises a clamping mechanism, a moving table, a supporting guide mechanism and a laser outer diameter measuring mechanism. According to the invention, the clamping mechanism, the laser outer diameter measuring mechanism and the supporting and guiding mechanism cooperate with each other, so that the laser outer diameter measuring mechanism measures the diameter of the quartz rod in the circumferential direction in the process that the clamping mechanism drives the quartz rod to rotate axially; meanwhile, the mobile station drives the laser outer diameter measuring mechanism to move in the axial direction of the quartz rod through the supporting and guiding mechanism to measure the diameter, so that the diameter measurement of the quartz rod in the axial direction and the circumferential measurement of different axial positions are realized, the comprehensiveness of the diameter measurement of the quartz rod is improved, and the measurement result has representativeness; and the precision of diameter measurement of the quartz rod is improved.

The invention relates to the technical field of equipment calibration, in particular to a semiconductor detection equipment calibration system, which comprises the following modules: an initialization module for initializing parameters of semiconductor detection equipment; the warping prediction module is used for establishing an edge warping prediction model and predicting edge warping conditions of wafers with different diameters; the diameter compensation module is used for establishing an edge compensation model and calculating a diameter compensation value according to the wafer edge warping degree predicted by the edge warping prediction model; the feedback adjustment module is used for automatically adjusting image generation parameters of the semiconductor detection equipment according to the diameter compensation value; the verification module is used for carrying out comparison verification on the compensated wafer image and the actual wafer diameter according to experimental analysis; and the application module performs automatic matching and diameter compensation. According to the method, the edge warping prediction model and the diameter compensation model are introduced, so that the diameter measurement error caused by wafer warping can be effectively predicted and compensated, and a remarkable effect on pre-calibration of semiconductor detection equipment is achieved.

There is provided an inside-diameter measuring unit capable of automating inside-diameter measurement and a control method for automatic inside-diameter measurement. An inside-diameter measuring part is supported by a support frame part via a floating joint part. The floating joint part includes a rotation-allowing mechanism part and a translation-allowing mechanism part. A measuring head part of the inside-diameter measuring part is inserted into a hole by a robot arm part. The inside-diameter measuring part adjusts its position and posture autonomously by the reaction force when a contact point pushes against the inner wall of the hole to align the axis of the inside-diameter measuring part with the axis of the hole. An electric inside-diameter measuring unit can automatically measure the inside diameter of a hole.

According to the control method of the high-speed stranding machine provided by the invention, abundant data support is provided for comprehensively and accurately analyzing wire diameter change reasons by acquiring stranded wire cross-section image data, stranded wire surface temperature data and real-time rotating speed of the stranding machine corresponding to the high-speed stranding machine in real time and a real-time tension value acquired by a tension sensor. And carrying out wire diameter measurement by adopting the cross section image data of the stranded wire to generate a real-time wire diameter measurement value. A real-time wire diameter measurement value is dynamically compared with a preset standard value, a deviation coefficient is generated, and a clear adjustment signal is provided through the deviation coefficient. And according to the deviation coefficient, dynamically adjusting a stranding parameter of the high-speed stranding machine to generate a target stranding parameter, and the step can respond to the change of the wire diameter in real time. And real-time compensation control is carried out on the high-speed stranding machine through the closed-loop feedback system according to the target stranding parameters, deviation is corrected in time, and it is ensured that the wire diameter is always kept within an allowable range.

The invention relates to the field of diameter measurement, in particular to a steel wire rope infrared laser diameter detection device and method, and the device comprises an installation seat which is connected with a measurement assembly used for measuring the diameter of a steel wire rope. According to the invention, through cooperation between the two mounting ring plates and the limiting rollers correspondingly limited on the two mounting ring plates, a steel wire rope to be measured is supported and limited, and then through cooperation between the laser emitting end and the laser receiving end correspondingly connected in the two mounting ring plates, the steel wire rope to be measured is measured. The steel wire rope diameter measuring device achieves the effect of measuring the diameter of a steel wire rope in a non-contact mode, effectively reduces friction and vibration during relative sliding of the steel wire rope and the shell through cooperation of a limiting roller and a buffer spring, and improves the measuring precision.

The invention discloses a laser scanning optimization system for high-precision ellipticity and diameter measurement, and relates to the technical field of cylindrical workpiece geometric dimension measurement. Comprising a laser contourgraph assembly, the laser contourgraph assembly comprises four laser contourgraphs, the four laser contourgraphs are arranged in the circumferential direction of the cross section of a to-be-measured workpiece at equal intervals, the included angle between every two adjacent laser contourgraphs is 90 degrees, and the laser contourgraphs are used for synchronously collecting contour point cloud data of the surface of the to-be-measured workpiece; and the data acquisition module is used for receiving and summarizing the contour point cloud data. The four laser contourgraphs are arranged at equal intervals in the circumferential direction of the cross section of the workpiece and collect synchronously, so that the problems that a traditional single laser module is incomplete in rotary scanning coverage and has timeliness deviation are solved; and the point cloud processing module improves the condition of insufficient point cloud processing refinement through splicing, direction correction, section extraction, adaptive region division and arc length interception processing.

There is provided an inside-diameter measuring unit capable of automating inside-diameter measurement and a control method for automatic inside-diameter measurement. An inside-diameter measuring part is supported by a support frame part via a floating joint part. The floating joint part includes a rotation-allowing mechanism part and a translation-allowing mechanism part. A measuring head part of the inside-diameter measuring part is inserted into a hole by a robot arm part. The inside-diameter measuring part adjusts its position and posture autonomously by the reaction force when a contact point pushes against the inner wall of the hole to align the axis of the inside-diameter measuring part with the axis of the hole. An electric inside-diameter measuring unit can automatically measure the inside diameter of a hole.

The invention discloses a steel wire rope diameter measurement method and system based on machine vision, a medium and a terminal, and the method comprises the following steps: collecting an image of a steel wire rope through an area-array camera, and carrying out the preprocessing of the collected image; automatically adjusting a threshold value according to image characteristics, performing adaptive binarization processing on the preprocessed image, and extracting an effective area of the steel wire rope; extracting the edge information of the steel wire rope in the image of the effective area by adopting a Canny operator, and detecting the central axis of the steel wire rope in the image by using Hough transformation; the edge information and the central axis position serve as new image feature vectors to be input into a trained support vector machine SVM model, and a decision function is used for calculating a predicted diameter value; according to the method, the threshold value is automatically adjusted according to the image characteristics through self-adaptive binaryzation, the accuracy of edge detection is improved, the measurement of the diameter of the steel wire rope is optimized through the SVM algorithm, and the precision, efficiency and repeatability of measurement and the generalization ability of the model are improved.

There is provided an inside-diameter measuring unit capable of automating inside-diameter measurement and a control method for automatic inside-diameter measurement. An inside-diameter measuring part is supported by a support frame part via a floating joint part. The floating joint part includes a rotation-allowing mechanism part and a translation-allowing mechanism part. A measuring head part of the inside-diameter measuring part is inserted into a hole by a robot arm part. The inside-diameter measuring part adjusts its position and posture autonomously by the reaction force when a contact point pushes against the inner wall of the hole to align the axis of the inside-diameter measuring part with the axis of the hole. An electric inside-diameter measuring unit can automatically measure the inside diameter of a hole.

The utility model relates to the technical field of measurement, in particular to a device for detecting the diameter of a circular arc by using a pneumatic gauge, which comprises a pneumatic electronic column, a control panel arranged on the surface of the pneumatic electronic column, a numerical value observation column arranged on the surface of the pneumatic electronic column, a gas transmission joint fixedly arranged on the surface of the pneumatic electronic column, and a gas outlet fixedly arranged on the surface of the pneumatic electronic column. The surface of the gas transmission connector is fixedly connected with a gas transmission pipeline, the surface of the gas transmission pipeline is fixedly connected with a handle, the bottom of the handle is fixedly connected with a measuring support, the bottom of the measuring support is fixedly provided with a diameter measuring body, and the surface of the diameter measuring body is provided with a threaded groove. And the threaded groove is in threaded connection with a locking screw. According to the utility model, gas is adopted as a medium to measure parts, direct measurement can be carried out on a station, the three-coordinate measurement process of the parts is reduced, convenience and high efficiency are realized, and the measurement efficiency is improved.

The invention relates to the technical field of detection equipment, in particular to a steel wire rope diameter measuring device and method, and the device comprises a measuring assembly which comprises a first pedestal and a plurality of measuring modules; the first base is internally provided with a plurality of accommodating cavities used for installing measuring modules. The measuring assembly and the sensing assembly both adopt a split type base design, through the design, the two first bases are connected together through the partition plate with the inclined plane, and the problem of space interference between the steel wire rope and the bases is effectively avoided. In addition, the measuring assembly is also provided with a measuring module equipped with a roller, and the module can accurately sense the position change of the roller caused by the diameter change of the steel wire rope based on the capacitance or electromagnetic principle, thereby realizing the accurate measurement of whether the diameter of the steel wire rope is compliant or not.

The invention relates to a part diameter measuring device which comprises a base which is provided with a supporting structure used for supporting a part; the two pneumatic measuring instruments are used for measuring the diameter of an outer circle and the diameter of an inner hole respectively, one pneumatic measuring instrument comprises an outer diameter measuring head, the other pneumatic measuring instrument comprises an inner diameter measuring head, the outer diameter measuring head and the inner diameter measuring head are connected to the base and are arranged at intervals in the axial direction of the inner diameter measuring head, and the inner diameter measuring head can rotate relative to the base around a first axis parallel to the axis of the inner diameter measuring head; when the measured part is arranged on the supporting structure, the measured part is located in the outer diameter measuring head, the outer circle axis of the measured part coincides with the first axis, and the inner diameter measuring head can rotate around the first axis to be coaxial with an inner hole of the measured part located on the supporting structure. The part driving mechanism is used for being connected with a tested part located on the supporting structure and used for driving the tested part to rotate around the first axis. The device can measure the outer circle diameter and the inner circle diameter of a part at the same time, and can rapidly complete the detection of the part.

The utility model discloses on-machine measuring equipment suitable for large-scale deep blind hole processing, which belongs to the field of processing equipment, and is characterized in that a measuring assembly is arranged aiming at a cutter bar, and the inner diameter of a corresponding measuring point of a large-scale deep blind hole in the opposite direction is respectively measured by utilizing the combined arrangement of a measuring ball module and a point light source module, so that the inner diameter measured value of the measuring point is obtained; and on-machine measurement of the inner diameter of the large-scale deep blind hole is realized. The on-machine measuring equipment suitable for large-scale deep blind hole machining is simple in structure and convenient to operate, an existing machine tool structure can be effectively utilized, on-machine measurement of a large-blind-hole workpiece can be achieved only by simply transforming the existing machine tool structure, secondary clamping and positioning of the workpiece caused by measurement are avoided, and the working efficiency is improved. The precision and efficiency of inner diameter measurement in the machining process of the large-scale deep blind hole workpiece are improved, guarantee is provided for the final finish machining efficiency and precision of the workpiece, the machining cost and application cost of the large-scale deep blind hole workpiece are reduced, and good economic value and practical value are achieved.

The invention provides a branch diameter real-time measurement method and system based on a depth camera, and relates to the technical field of data processing, and the method comprises the steps: extracting a skeleton center line based on a final contour, dynamically laying measurement points along a skeleton line, and calculating a unit normal vector, scanning the contour boundary along the normal direction to determine the intersection point coordinates of the normal and the contour; calculating three-dimensional space coordinates according to the intersection point coordinate set and the corresponding depth value to obtain a section diameter measurement value; and on the basis of the section diameter measurement value, real-time smoothing processing is carried out through an exponential weighted moving average filtering algorithm for dynamically adjusting parameters, instantaneous errors are eliminated in combination with an anomaly detection mechanism, and a smoothed diameter data stream is output. The accuracy of contour extraction and the practicability of the measurement method are improved.

The invention belongs to the technical field of cable processing devices, and particularly relates to a cable straightening and cutting device which comprises a cable disc supporting mechanism, a cable straightening mechanism, a cable measuring and shearing mechanism and a cable collecting mechanism which are sequentially arranged in the cable conveying direction. The cable tray supporting mechanism is used for supporting a cable tray; the cable straightening mechanism is used for straightening the unfolded cable and guiding the transportation of the cable; the cable measuring and shearing mechanism is used for measuring the diameter of the straightened cable and shearing the cable after diameter measurement; and the cable collecting mechanism is used for classifying and collecting the sheared cables. The straightening and cutting efficiency in the cable machining process can be improved, and the straightness and cutting quality of the cable are ensured.

The present invention provides a wafer diameter measuring device and method, which belongs to the field of semiconductor manufacturing technology. The wafer diameter measuring device includes a first support seat, a light source transmitting module, a signal receiving module and a processing module. The first support seat is used to place a wafer to be measured, and the light source transmitting module is used to transmit a light signal. The light source transmitting module has a light-emitting surface with a preset area. The first support seat and the signal receiving module are both arranged on the light signal transmission path of the light source transmitting module. The signal receiving module is used to obtain a first light signal after the light signal is blocked by the wafer to be measured. The processing module is configured to pre-store a correspondence between the wafer diameter and the first light signal, so as to determine the diameter of the wafer to be measured based on the correspondence and the first light signal. The wafer diameter measuring device improves the efficiency and accuracy of wafer diameter measurement.

The utility model discloses a differential housing inner spherical surface diameter measuring device, which comprises a main body, a fixed end ball measuring head is connected to the lower part of the right side of the main body, the left side of the main body is provided with an up-and-down through groove hole, a horizontally arranged sliding shaft is installed in the groove hole, and two ends of the sliding shaft are connected with two side surfaces of the main body. The sliding shaft is sleeved with a sliding seat, the bottom of the sliding seat is connected with a movable end ball measuring head, the top of the sliding seat is provided with a small handle, the top of the main body is provided with a large handle, the position of the large handle corresponds to the position of the fixed end ball measuring head, and the side face, away from the fixed end ball measuring head, of the sliding seat is provided with a flat measuring head. The technical problems that in the prior art, manual detection efficiency is low, data are not accurate, large equipment detection procedures are complex, and detection cost is high are solved.

Disclosed is a workpiece diameter measurement method including the steps of: measuring coordinates of a point P that is on an outer circumferential surface of a cylindrical workpiece that is supported such that a rotary axis of a main spindle of a machine tool and a central axis of the cylindrical workpiece coincide with each other, the coordinates having a maximum or minimum coordinate in a first direction that is orthogonal to the rotary axis; calculating a distance D2 in the first direction between the point P and a reference point Q that is a point at which a distance D1 in the first direction from the rotary axis is known; and calculating a workpiece diameter of the cylindrical workpiece based on the distance D1 and the distance D2.

The present invention discloses an intelligent recognition and diameter measurement synchronous detection system for surface damage of wire ropes, which relates to the technical field of wire rope monitoring. By deploying a waterproof sensor group on the mooring wire ropes of ocean buoys, including a laser scanning sensor, a waterproof industrial camera, and an ultrasonic sensor, this system can collect real-time images and defect data sets of the wire rope surface. The sensor module combines a communication unit and an image processing unit, which can transmit data in real time and perform image processing and analysis to extract the damage texture features and damage area on the wire rope surface. Through an efficient threshold segmentation algorithm, the coating damage area can be accurately located R ( x , y ) and the total damage area can be calculated A damage . This intelligent recognition and image processing technology can effectively avoid the errors and delays of traditional manual detection, greatly improve the detection efficiency and accuracy, thereby identifying potential damage and faults earlier and reducing the risk of accidents

The invention relates to the technical field of steel wire rope state detection, in particular to a steel wire rope diameter measuring method and system based on event compensation correction. According to the technical scheme, the system comprises an imaging module, a boundary initial extraction module, a dynamic motion estimation module, a dynamic correction compensation module and a diameter calculation module. The imaging module comprises a traditional camera, an event camera, an optical component, a synchronous triggering device and a spectroscope. The traditional camera is used for collecting frame images of the steel wire rope. According to the method, on the basis of complementary advantages of an event camera and a traditional camera, systematic measurement deviation under the dynamic working condition is solved from the mechanism through an event-driven dynamic geometric compensation model, and quasi-static imaging dependence is broken through. The method does not need extra constraint or increase of frame rate, control cost and hardware complexity, avoids the problems of reduction of signal-to-noise ratio and the like, realizes high-precision stable measurement under high-speed and vibration working conditions, adapts to online monitoring of multiple industrial scenes, and is remarkable in practicability and application value.

The invention discloses a laser scanning type overhead conductor health detection system and method, and relates to the technical field of power equipment detection, and the method comprises the steps that a laser scanning module scans the contour of an overhead conductor according to a laser scanning line, detects the environmental interference, and corrects the scanning track of the laser scanning line in real time based on the environmental interference information; acquiring wire scanning data; the data processing module extracts wire contour data based on the wire scanning data, fits a wire diameter according to the wire contour data, and matches a standard wire diameter library to obtain wire diameter data; and the data analysis module calculates the wear rate according to the wire diameter data of the wire, evaluates the health state of the wire in combination with the multi-element wire information, and obtains a health evaluation result. According to the invention, the track deviation of the laser under environmental disturbance can be compensated in a complex scene, the lead diameter measurement precision is improved, the health state of the lead is evaluated by fusing the lead diameter data with the multi-element lead information, and the reliability of the lead health state evaluation result is improved.

The invention discloses a blood vessel inner diameter correction method and device based on an X-ray total attenuation conservation principle and a storage medium, and belongs to the technical field of medical image processing. The core of the method is to discover and utilize the total net attenuation of a blood vessel filled with a contrast agent in an actual motion state and the total net attenuation of the blood vessel in an ideal static state to be kept in conservation. The method comprises the steps that an angiography image is acquired, and a target area and an initial inner diameter measuring line are determined; calculating the gray scale decline amount and the maximum value of each pixel of the line; on the basis of the conservation principle, the inner diameter of the blood vessel in an ideal state is inversely calculated through the formula that the inner diameter is corrected to be equal to sigma [(delta Ii / delta Imax) * Li]. Furthermore, based on the same principle, the method can be expanded and applied to correction of the two-dimensional contour of the target blood vessel. According to the method, errors caused by motion artifacts and resolution limitation are fundamentally compensated through a volume measurement method based on integration and distribution, and the method is particularly suitable for accurate measurement of severe stenosis blood vessels.

The invention discloses a circle diameter measurement error compensation method based on a CCD image sensor. The method comprises the following steps: acquiring a digital image of an object to be measured; performing dynamic light intensity evaluation and correction on the digital image to generate a corrected digital image; generating an image edge coordinate point set for the corrected digital image through a preset edge compensation model; obtaining candidate points based on the image edge coordinate point set; based on the candidate points, generating a fitting circle through circle parameter fitting; and based on the fitting circle, through a preset calibration proportionality coefficient, calculating and obtaining an actual circle radius. Through dynamic light intensity evaluation and correction, the current light intensity parameter can be evaluated and adaptively adjusted to improve the contrast ratio of a real edge, and meanwhile, the real edge is accurately positioned through a preset edge compensation model and a deep learning mode, so that the circle diameter measurement error of a transparent object is reduced.

The invention relates to an intelligent edible mushroom cap diameter measuring method for robot picking. The method comprises the following steps: acquiring individual positions of edible mushrooms by adopting a deep learning target detection algorithm, and cutting a single edible mushroom image; edible mushroom cap boundary fitting is carried out on an image of a single edible mushroom, by adopting the core of the method based on segmented screening and multi-criterion scoring ellipse fitting, color quantization and contour extraction processing are firstly carried out on the image, then noise filtering is adopted and segmented screening is carried out on fitting segments, then a segmented screening ellipse fitting strategy is set, and the image of the edible mushroom cap is obtained. Fitting a plurality of candidate ellipses, screening an optimal ellipse by using a multi-criterion scoring mechanism, and returning ellipse long axis information as diameter information; and fusing the depth information to complete coordinate conversion from the pixel to the physical size, and outputting a diameter measurement result. The method is high in measurement precision, has good adaptability and stability in dense growth and mutual shielding environments, and can effectively solve the technical problem of automatic measurement of the diameter of the edible fungi in a complex cultivation environment.

The utility model discloses a fixing device for measuring the diameter of a broken industrial bar, which relates to the technical field of material tensile property testing, and comprises a magnetizing mechanism and a magnetic attraction base of a magnetizer, a cylindrical cavity for the magnetizing mechanism to be installed is arranged in the magnetic attraction base, a dovetail groove is arranged at the top of the magnetic attraction base, and the dovetail groove is arranged in the cylindrical cavity. The magnetizing mechanism comprises a magnetic bar and a variable magnetic core, the magnetic bar is rotationally arranged in the variable magnetic core, the variable magnetic core is provided with a pair of arc-shaped magnetic conductive sheets and a pair of non-magnetic conductive partition plates which are oppositely arranged, and the magnetic bar rotates to enable two poles of the magnetic bar to be in contact with the two arc-shaped magnetic conductive sheets respectively, so that the variable magnetic core is switched to be in a magnetizing state capable of magnetizing the magnetic attraction base; the magnetic bar rotates to enable the two poles of the magnetic bar to be in contact with the same arc-shaped magnetic conductive sheet, so that the variable magnetic core is switched to be in a demagnetization state in which the magnetic attraction base cannot be magnetized, and therefore, the bar can be conveniently taken and placed, and the bar can be conveniently positioned when section matching and diameter measurement are carried out.

The invention relates to the technical field of laser diameter measurement, in particular to a synthetic fiber thickness laser measuring device and method.The synthetic fiber thickness laser measuring device comprises a measuring unit and a rotating unit, the measuring unit comprises a shell, the front end of the shell is fixedly connected with an extending plate, and the end, away from the shell, of the extending plate is fixedly connected with a laser head; a side supporting plate is fixedly connected to the side edge of the shell, a movable shaft is arranged at the end, away from the shell, of the side supporting plate, the rotating unit comprises a center shaft movably penetrating through the outer surface of the side supporting plate, the outer surface of the center shaft is fixedly sleeved with a support, and the movable shaft is rotationally connected to the inner side of the support; through the linkage design of the central shaft, the support and other parts, the movable shaft and the fibers wound on the movable shaft can rotate around the central shaft, meanwhile, a transmission system is matched, winding and moving of the fibers are achieved, it is ensured that diameters at different positions and different angles are systematically measured, all directions of the cross section of the fibers are effectively covered, and the measurement accuracy is improved. And the accuracy and reliability of a measurement result are obviously improved.

The invention discloses a laser type constructional engineering pipeline diameter measuring instrument and a measuring method, and belongs to the technical field of pipeline diameter measurement. The device comprises two first rectangular pipes, one first rectangular pipe is fixedly connected with a first laser range finder and a mounting block, and the other first rectangular pipe is fixedly connected with a second laser range finder; a first reflector matched with the first laser range finder is fixed on one of the rectangular rods; the method comprises the following steps: S1, holding a U-shaped handle by hand to drive the whole device to move, so that a semi-cylindrical block is propped against the inner wall of a to-be-detected pipeline; the device can measure the inner diameters of various types of pipelines, the inner wall of the pipeline can be measured only by abutting the semi-cylindrical block against the inner wall of the pipeline and extruding the whole device until the rectangular rod abuts against the inner wall of the pipeline, the device does not need to be adjusted, and compared with the prior art, the working efficiency is greatly improved, the measurement difficulty is reduced, and the measurement accuracy is improved. And whether the pipeline is deformed or not can be quickly measured.

The utility model relates to a reinforcing steel bar size detector, which comprises a detection plate, a diameter measuring plate and a length measuring plate, a front baffle plate is integrally arranged at one end of the detection plate, the diameter measuring plate is slidably connected inside the detection plate, and a sliding plate slidably connected inside the front baffle plate is arranged on the outer wall of one side of the diameter measuring plate. The front baffle is rotatably connected with a bidirectional screw rod through a bearing, the sliding plate sleeves the bidirectional screw rod in a threaded manner, and the diameter measuring plate sleeves the detection plate in a sliding manner. According to the radius measuring structure, the two sliding plates can move towards the reinforcing steel bar in the semicircular placing groove at the same time, the diameter of the reinforcing steel bar can be measured conveniently, the diameter measuring function is achieved, the elastic force of the spring of the length measuring structure can push the length measuring plate to move towards the end of the reinforcing steel bar in the semicircular placing groove, and the length of the reinforcing steel bar can be measured; therefore, the detector has the functions of measuring the diameter and the length at the same time, is multifunctional, and is more convenient to use.

The invention discloses a steel wire rope surface damage intelligent identification and diameter measurement synchronous detection system, and relates to the technical field of steel wire rope monitoring. A waterproof sensor group is arranged on an ocean buoy mooring steel wire rope and comprises a laser scanning sensor, a waterproof industrial camera and an ultrasonic sensor; the surface image and defect data set of the steel wire rope can be acquired in real time. The sensor module is combined with the communication unit and the image processing unit, data can be transmitted in real time, image processing and analysis are carried out, and damage texture features and damage area of the surface of the steel wire rope are extracted. Through an efficient threshold segmentation algorithm, a coating damage area R (x, y) is accurately positioned, and a total damage area Adamage is calculated. According to the intelligent identification and image processing technology, errors and delay of traditional manual detection can be effectively avoided, and the detection efficiency and accuracy are greatly improved, so that potential damage and faults are identified earlier, and the risk of accidents is reduced.

The invention relates to the field of automatic measurement control methods, in particular to an axle parameter intelligent measurement system and method based on a PLC, and the system comprises diameter measurement and length measurement. The length and diameter measuring device is provided with a displacement sensor, the sensor is in signal connection with a sensing controller, the sensing controller is in signal connection with a PLC (Programmable Logic Controller), and the PLC is connected with an upper computer; the diameter measurement method comprises the following steps: controlling the detection integrated block to repeatedly measure the diameters of a plurality of step shaft bodies at one end of a workpiece axle; according to the type of the step shaft body, a certain number of sections are taken for each step, each section is measured for a certain number of times, and the detection integrated block is controlled to rotate by a certain angle between every two times of measurement; and judging whether the measured values are out of tolerance or not, then averaging until one end of the axle is detected, and controlling the detection integrated block to rotate by 180 degrees to detect the other end of the axle. The length measuring method adopts a non-contact length sensor to directly measure the length of a workpiece axle. According to the invention, the measurement accuracy can be improved.