35results about How to "Reduce detection efficiency" patented technology

The utility model discloses a hydroelectric power station thrust equipment oil quality on-line monitoring system which comprises a control module, the control module is electrically connected with a processing module, the processing module is electrically connected with a driving module, the driving module is electrically connected with a miniature oil pump, and the processing module is electrically connected with a communication module. According to the utility model, hydraulic oil in the hydraulic oil tank is extracted through the micro oil pump, rapid detection of the hydraulic oil is realized, real-time on-site monitoring is realized through construction of the detection module, the detection efficiency is saved, the intermediate duration of detection is shortened, and data information is preprocessed through the processing module, so that the detection accuracy is improved. According to the invention, the data information can be kept accurate, the control module can conveniently carry out calculation processing, analyze and process the abnormity of the hydraulic oil and timely process the hydraulic oil, the detected hydraulic oil can be recycled, and the consumption and waste of the hydraulic oil are reduced.

The invention relates to the technical field of biological medicine, in particular to a biomarker for diagnosing and distinguishing rheumatoid arthritis and knee osteoarthritis and application of the biomarker. In order to solve the problems of insufficient sensitivity and specificity of rheumatoid arthritis (RA) and knee osteoarthritis (KOA) in clinical detection, the invention discloses a novel biomarker, namely a soluble interleukin 17 receptor D, namely sIL-17RD. The inventor finds that the sIL-17RD level is remarkably increased in serum of a patient with rheumatoid arthritis, the sIL-17RD level is not remarkably changed in serum of a patient with knee osteoarthritis, and the sIL-17RD level is remarkably increased in synovial fluid of the patient with knee osteoarthritis. Therefore, by measuring the sIL-17RD level in the serum sample of the rheumatoid arthritis patient and the sIL-17RD level in the synovial fluid and serum of the knee osteoarthritis patient, the rheumatoid arthritis and the knee osteoarthritis are diagnosed and distinguished, and a new strategy is provided for clinical diagnosis and distinguishing of the rheumatoid arthritis and the knee osteoarthritis.

The invention discloses a cylindrical plane test block supporting structure for ultrasonic water immersion detection, and belongs to the technical field of ultrasonic water immersion detection. The problems that in the prior art, the detection efficiency is low, and a probe is prone to being damaged are solved. The supporting structure body comprises a shell with an opening in the upper end, an inner support is arranged in the shell, the inner support and the cylindrical plane test blocks are sequentially placed in the shell, the bottom face of the inner support is attached to the bottom face of the shell, the top face of the inner support is attached to the bottom faces of the cylindrical plane test blocks, the top faces of all the cylindrical plane test blocks are coplanar, and the shell is provided with a window. The cylindrical plane test block supporting structure for ultrasonic water immersion detection is used for ultrasonic water immersion detection, the top surface of each detection test block is located on the same plane, it is guaranteed that the water distance between a probe and the top surface of each test block is consistent, detection of test blocks of different lengths can be achieved only by translating the probe in the test block detection process, and the detection efficiency is improved. The time for moving and adjusting the water distance each time is shortened, and the detection efficiency is greatly improved; the probe is prevented from moving and colliding with the test block.

This invention relates to the field of road-bridge transition section health monitoring and intelligent transportation technology, specifically to a method for inferring the location of slab breakage in road-bridge transition sections based on vehicle acceleration. The method involves: collecting vibration signals from vehicles passing through the road-bridge transition section using an onboard acceleration sensor; denoising, noise reduction, and normalization of the collected data; extracting the actual acceleration collected by the sensor using wavelet transform and fast Fourier transform; constructing a physical-mechanical model of the road-bridge transition section and a vehicle-road coupled mechanical model to determine the slab breakage status; calibrating the slab breakage status using a Bayesian probability model, constructing a likelihood function and prior distribution; inferring the posterior distribution based on the likelihood function and prior distribution; and calculating the posterior distribution using the MCMC method. This invention infers the location of slab breakage in road-bridge transition sections using vehicle vibration data and Bayesian methods, enabling precise quantification and uncertainty assessment of road defects.

The invention relates to a fluorescence and colorimetric dual-mode biosensing method for detecting caffeine and application thereof, the method causes CRISPR / Cas13a to regulate and control Fe-MOFs to fall off from a signal probe based on to-be-detected liquids with different concentration gradients, the fallen Fe-MOFs collapses under the action of sodium pyrophosphate to release 2-aminoterephthalic acid and ferric ions, and the 2-aminoterephthalic acid and ferric ions are subjected to fluorescence and colorimetric dual-mode biosensing method is used for detecting caffeine. 2-aminoterephthalic acid is converted into a fluorescence signal, meanwhile, Prussian blue generated by reaction of ferric ions and potassium ferrocyanide is converted into a colorimetric signal, and a fluorescence and colorimetric dual-mode biosensing method is constructed; according to the sensor, interference factors can be effectively eliminated by outputting two detection signals and performing cross validation; the advantages of high sensitivity and wide linear range of a fluorescence method and the advantages of simple operation and visual result of a colorimetric method are combined, so that a target object can be accurately recognized, the lower detection limit can be reduced, and the accuracy of a quantitative result can be ensured; according to the sensing method, visual observation can be achieved, precise instruments are not needed, and good application value is achieved.

The application relates to a tire pressure detection method and device, computer equipment and a storage medium. The method comprises the following steps: when a vehicle passes through a data acquisition point on an assembly line, the vehicle body is scanned to obtain a vehicle identifier of the vehicle; according to the vehicle identifier, the tire pressure sensor configuration state of the vehicle is inquired, the tire pressure sensor configuration state being used for determining the tires with the tire pressure sensors among all the tires adapted to the vehicle; based on the tire pressure sensor configuration state, it is determined whether the vehicle has the tires with the tire pressure sensors, and in the case of determination, the tire positioning information is acquired according to the tire pressure sensor configuration state, the tire positioning information being used for indicating the target tire with the tire pressure to be detected among all the tires with the tire pressure sensors of the vehicle; and in the process of conveying the tires by a tire conveying line, the tire pressure of the target tire is detected according to the tire positioning information. The method can improve the detection efficiency of the tire pressure information.

The invention discloses an ultrasonic optical dual-mode imaging probe for imaging, and relates to the technical field of imaging probes, the ultrasonic optical dual-mode imaging probe for imaging comprises a main body tube, the bottom surface of the main body tube is fixedly connected with a contact head, and the contact head is used in cooperation with a synchronizing wheel, a belt, a guide wheel, a rotating belt and the like. By pressing a control button of the controller, the optical probe and the ultrasonic probe in the handheld tube and the main body tube can be automatically switched, and when the optical probe moves into the contact head, optical detection can be carried out to obtain an optical signal; when the ultrasonic probe moves into the contact head, ultrasonic detection can be carried out to obtain an ultrasonic signal, and the detection mode of dual-mode mutual switching detection is adopted, so that the body size of the detection probe is reduced to the greatest extent while dual-mode detection is realized, and the detection probe is more suitable for a plug-in detection mode; and harm and discomfort caused when the detection probe goes deep into a human body for detection are reduced.

The invention discloses a carbon dioxide emission source itinerant monitoring method based on an NDIR technology, and relates to the technical field of environment monitoring. The method comprises the following steps: a detection vehicle collects carbon dioxide concentration data of each collection point along a planned path; comparing the carbon dioxide concentration data with a set carbon dioxide concentration threshold value, and performing grading treatment; when the carbon dioxide concentration is abnormal, other detection vehicles are cooperated for verification; according to the method, the problems of fixed monitoring points, untimely response and the like in the existing scheme can be effectively solved, and the method is suitable for the requirement of accurately and intelligently monitoring the carbon dioxide concentration in a complex environment.

The invention discloses an imaging method of a semiconductor dual-channel shared microscopic imaging device, comprising a frame, a platform and a column, wherein the platform is arranged on the frame, the column is provided with a Z-axis movable frame and a second X-axis movable frame arranged on the Z-axis movable frame, the second X-axis movable frame is provided with a fixed seat extending toward the platform, and the fixed seat is located above a bearing seat; a pivotally arranged turntable is provided on the lower wall of the fixed seat, the turntable is arranged horizontally, and the turntable is provided with a plurality of microscope objective lenses arranged at intervals, a DD motor for driving the turntable to rotate is provided in the middle of the fixed seat, the fixed seat is provided with a fixed tower plate arranged opposite to the turntable, and the optical axis of the microscope objective lens, the optical axis of a black-and-white camera module and the optical axis of a color camera module are all arranged vertically; when the DD motor rotates, the turntable drives a predetermined microscope objective lens to rotate, and makes the optical axis of the predetermined microscope objective lens coincide with the optical axis of the black-and-white camera module and / or the optical axis of the color camera module.

The present invention discloses a motor valve sealing detection device, which relates to the field of motor valve technology, and comprises a support plate, wherein the top side wall of the support plate is provided with a clearance through hole, the interior of the support plate is provided with an installation cavity, and the bottom inner wall of the installation cavity is rotatably connected with a first rotating ring. The present invention can accurately detect whether the internal sealing of the three channels of the three-way motor valve is good, and can adjust the position of the first detection shell according to the position of the main channel of the three-way motor valve, so as to facilitate the blocking of the three channels of the three-way motor valve at different angles, and realize the rapid detection of the sealing of the three-way motor valve, and at the same time, can detect the sealing of the three-way motor valves with annular distribution of the three channels and the three-way motor valves with the secondary channels vertically downward, so as to avoid the staff from replacing the adaptable operating table according to different three-way motor valves, reduce the detection efficiency, and improve the efficiency and adaptability of the device in the three-way motor valve sealing detection.

The utility model discloses a bridge safety detection equipment relates to bridge detection technical field, including unmanned plane, the top middle place fixed mounting of unmanned plane has steel bar rust detection appearance host computer, the bottom four corners of unmanned plane all are fixedly installed with support leg, the bottom of unmanned plane is close to the position of two ends and all is fixedly installed with folding frame, the bottom center of unmanned plane is fixedly installed with automatic telescopic device, the output of automatic telescopic device is fixedly connected with moving board, the bottom of moving board is close to the position of the front end and is fixedly installed with telescopic column, the bottom of telescopic column is fixedly installed with pressure sensor, the bottom of moving board is close to the position of the rear end and is fixedly installed with steel bar rust detection end.

The present invention discloses a single-channel unsupervised maternal-fetal mixed ECG signal R-peak detection method and device, storage medium, including: step S1, obtaining the maternal-fetal mixed ECG signal; step S2, grading multiple signal segments of the maternal-fetal mixed ECG signal, and determining the R-peak detection strategy of each signal segment; step S3, according to the R-peak detection strategy of each signal segment, determining the acquisition method of the reference R-peak sequence, and detecting the remaining R-peaks in each signal segment in a dynamic cycle extension manner based on the quasi-periodicity and morphological characteristics of the ECG signal; step S4, sequentially splicing the R-peak detection results of each signal segment as the final output. The technical solution of the present invention can simultaneously detect the mother's R peak and the fetal R peak in a single-channel unlabeled maternal-fetal mixed ECG signal, which is suitable for single-channel signal detection and does not need to rely on information interaction between multi-channel signals.

The application provides a liquid crystal display screen surface defect detection device and relates to the field of liquid crystal display screen surface defect detection. The application comprises a shell, the inner lower surface of the shell is fixedly connected with a base, the upper surface of the base is fixedly connected with a chain wheel conveyor belt, the inner surface of the base is provided with a submission device, the upper surface of the submission device is installed with a display screen, and the upper surface of the base is fixedly connected with a fixed support. The display screen is moved to the position of the shooting device through the submission device and is limited through the moving device, the display screen is not taken down for detection for multiple times, the possibility of damage of the display screen is reduced, the display screen is shot from multiple directions through the cooperation of the rotating device, the moving device, the shooting device and the submission device, more observation angles are provided, the torsional spring is arranged, the display screen can return to the original position after detection, and the situation that the detection efficiency is affected due to the failure to align the position on the chain wheel conveyor belt is reduced.

The invention provides a nondestructive testing device and method for pressure-bearing equipment with a heat preservation layer, and belongs to the technical field of nondestructive testing, the device comprises a plurality of waveguide rods, the rear end of at least one waveguide rod in the plurality of waveguide rods is connected with an ultrasonic transmitter, and the rear end of at least another waveguide rod in the plurality of waveguide rods is connected with an acoustic emission sensor; the fixing assembly is used for fixing the waveguide rod on the outer wall of the pressure-bearing equipment; the controller is in communication connection with the ultrasonic transmitter and the acoustic emission sensor and is used for detecting whether the pressure-bearing equipment has defects or not; the front end of the waveguide rod is provided with an arc-shaped coupling face matched with the curvature of the outer wall of the pressure-bearing equipment, the front end of the waveguide rod penetrates through the heat preservation layer, and the arc-shaped coupling face is covered with the heat preservation layer and attached to the outer wall of the pressure-bearing equipment. The method solves the problems of high detection cost and complicated operation caused by the need of dismounting a thermal insulation layer or difficulty in low-temperature coupling in a traditional method, and has the advantages of simplicity and convenience in operation, low cost, high detection efficiency, high accuracy, high adaptability and the like.

The present application belongs to the technical field of nondestructive testing of building materials, and particularly relates to a rebound nondestructive testing method and system for the compressive strength of rapidly hardened cement-based materials. The technical solution is as follows: sample data of rapidly hardened cement-based materials is collected to construct a sample data set; the sample data set is subjected to outlier rejection, normalization processing and feature weight mapping to form a multi-dimensional input feature vector; based on the multi-dimensional input feature vector, a compressive strength prediction model is constructed, and the model parameters are optimized through k-fold cross-validation; the rebound value, curing age and mix proportion parameters of the rapidly hardened cement-based material to be tested are input into the trained compressive strength prediction model to output the corresponding compressive strength detection value. The present application can comprehensively consider sample data, establish a nonlinear mapping relationship between multi-dimensional features and compressive strength, thereby realizing rapid, continuous and high-precision evaluation of the compressive strength of rapidly hardened cement-based materials without damaging the materials or structure.

This invention belongs to the technical field of ultrasonic water spray testing systems, and particularly relates to a probe calibration device and deviation measurement method for an ultrasonic water spray testing system. The device includes: a main body, a base, a first locking screw, and a second locking screw; the main body is a circular ring with a break point and two lugs at the break point, the second locking screw connecting the two lugs; a radial threaded hole is provided on the side opposite the break point of the main body; the base is a cuboid with a threaded through hole in the middle, the first locking screw passing through the threaded through hole and the radial threaded hole sequentially to connect the base to the main body; a first groove and a second groove are respectively provided on both sides of the threaded through hole on the end face of the base away from the main body; the two grooves are used to fix the target ball.

The invention relates to a method and device for processing dangerous points along a railway, and the method comprises the steps: obtaining multi-temporal remote sensing image data along the railway, and carrying out the preprocessing of the multi-temporal remote sensing image data; preparing railway line ground feature training sample data with mark information, and marking and preprocessing five types of main ground feature elements; training a deep learning surface feature detection model by using the surface feature training sample data, extracting various surface feature elements along the railway, and converting the surface feature elements into vector data matched with geographic coordinates; dangerous point elements are obtained through change detection, the distance between the change elements and the railway is calculated to divide danger levels, and whether field detection and hidden danger elimination are needed or not is judged. Therefore, the problems that an existing railway line dangerous point detection method is low in detection precision and efficiency, and the detection requirement of large railway line dangerous points cannot be met are solved.

The utility model provides a polyester cloth bag weighing performance detection device, which relates to the technical field of anti-static polyester cloth bags and comprises a support platform, a support frame fixed at the upper end of the support platform, a roller rotatably connected to the outer wall of the support frame, a grip fixed on the side end face of the roller, a lifting rope fixed on the outer wall of the roller, and a support shaft fixed on the inner wall of the support platform. The fixing device comprises a rotating shaft, the outer wall of the rotating shaft is rotationally connected with a rotating disc, a sliding groove is formed in the rotating disc, a movable box is fixed to the bottom of the rotating shaft, a sliding plate is slidably connected into the movable box, and a sliding column is fixed to the upper end face of the sliding plate. The sliding column is in sliding connection with the sliding groove, the surface of the grip is sleeved with a rubber sleeve, baffles are fixed to the end faces of the two sides of the rotating wheel, clamping teeth are fixed to the upper end of the sliding plate, and by installing the fixing device, simulation tests of different heights can be conducted on polyester cloth bags with different calibers.

The present invention relates to the technical field of detection devices, and in particular to a disinfection cabinet sealing detection device, including: a first connecting pipe, a second connecting pipe, a valve body and a pump body are arranged on the disinfection cabinet body, the first connecting pipe is fixedly connected to the disinfection cabinet body, the first connecting pipe is connected to the second connecting pipe through a flange, the valve body is matched with the first connecting pipe, the pump body is matched with the detection box, and an air pressure detector is matched with the disinfection cabinet body. In the present invention, clean water and clean gas are extracted and transported by the pump body, so that the clean water and clean gas can quickly enter the disinfection cabinet. Compared with the low detection efficiency of the ozone detector in the prior art, the technical solution has high detection efficiency, and the two media of clean water and clean gas do not cause damage to the human body, which helps to ensure the safety of the staff when testing the sealing of the disinfection cabinet.

The online automatic detection machine of the moving end section of the transmission shaft mainly includes a frame, a work table, a fixed disc mounted on the work table, a turntable, and an NG material channel. The turntable is equipped with turntable station 1, turntable station 2, turntable station 3, and turntable station 4. The fixed disc is equipped with a moving beat leveling mechanism, a sliding force detection mechanism, and a steel ball quantity detection mechanism. The work table is equipped with a sheath pre-beating mechanism and a sheath flipping mechanism. The frame is equipped with a transplanting mechanism. The present invention is provided with an online automatic control system, which includes an electrical cabinet, a controller mounted in the electrical cabinet, and various detection components and actuators mounted on the equipment. The signal input end of the controller is electrically connected to the signal output end of each detection component through a signal line, and the signal output end of the controller is electrically connected to the signal input end of each actuator through a signal line. The present invention can automatically detect the moving end section of the automobile online during assembly, and its detection is accurate and efficient.

The invention relates to the technical field of automobile pipe fitting detection, in particular to detection equipment for new energy automobile pipe fitting production, which comprises a mounting frame, a detection barrel, a power unit I and the like, the mounting frame is connected with a detection barrel; a first power unit is connected to the mounting frame. After the hose is immersed in water in the detection barrel, the spherical parts of the two abutting rods abut against the inner wall of the hose, pressure is applied to the inner wall of the hose, the hose is expanded, tiny cracks in the inner wall of the hose are temporarily expanded, therefore, gas is conveniently discharged from the hose, bubbles are generated, the detection efficiency is improved, and meanwhile, the detection accuracy is improved. Pressure is applied to the inner wall of the hose through the spherical portion of the abutting rod, fine cracks in the inner wall of the hose are temporarily expanded, the amount of gas entering water can be conveniently increased, a large number of bubbles can be conveniently generated, observation by workers or a camera instrument is facilitated, and the situation that false detection is easily caused due to the fact that the cracks are fine and the bubbles are not clearly generated is avoided.

The application provides a metal wire rope tension detection device, and belongs to the technical field of metal wire rope tension detection. The metal wire rope tension detection device comprises a limiting assembly and a detection assembly. Two guide wheel plates are close to each other until they contact the metal wire rope. The movement of the metal wire rope is limited by the two guide wheel plates, so that the metal wire rope moves inside the limiting port and is always in the central position. Multiple driving frames can simultaneously move multiple tension detectors and detection rods. Multiple detection rods are arranged to move upward at the same time to simultaneously detect the metal wire rope at multiple points, which can significantly improve the detection efficiency and reduce the detection time. Meanwhile, multi-point detection can more comprehensively reflect the tension distribution of the metal wire rope, improve the detection accuracy, and further improve the detection efficiency by simultaneously detecting multiple points. Meanwhile, the metal wire rope is conveniently guided and limited, thereby improving the practicability.

This invention provides a standardized machine vision-based system for synchronously detecting the diameter and spacing of perforated holes in drainage boards, relating to the field of drainage board detection technology. It includes a standardized visual acquisition module, a composite adaptive optics illumination module, an anti-interference hole contour extraction module, a dynamic hole spacing boundary recognition module, a hole position anomaly recognition module, and a standardized database unit. The standardized visual acquisition module provides a standardized image foundation for subsequent detection. This invention constructs a standardized visual acquisition architecture, solving the shortcomings of existing visual acquisition modules, such as the lack of unified standards and large imaging deviations. Through standardized camera and light source configurations and a periodic calibration mechanism, combined with ambient light compensation, it ensures consistent imaging quality across different batches and devices, improving the universality of detection results. Simultaneously, it provides a standardized image foundation for subsequent detection algorithms, reducing algorithm adaptation difficulty and meeting the detection needs of industrial-scale production.

The application discloses a standard sheet and a mask, which can be used in the field of optical system performance detection. The standard sheet comprises a scanning electron microscope calibration pattern, which is used for scanning angle correction of a scanning electron microscope. The scanning electron microscope calibration pattern comprises an angle correction pattern, and the scanning electron microscope calibration pattern comprises at least one pattern layer. The angle correction pattern comprises a scanning angle correction pattern, wherein the scanning angle correction pattern comprises a check pattern formed by at least two pattern layers. Thus, a plurality of different patterns used for scanning angle correction of the scanning electron microscope are integrated on the same standard sheet, the function of the standard sheet is more comprehensive, the number of standard sheets required for correcting the scanning electron microscope is greatly reduced, and the cost of correcting the scanning electron microscope is reduced.

The invention relates to the technical field of detection equipment, and discloses metal chain tension detection equipment which comprises a workbench, the top of the workbench is fixedly connected with a sliding rail, the top of the sliding rail is fixedly connected with a top plate, the inner wall of the top plate is fixedly connected with a motor, and the output end of the motor is fixedly connected with a lead screw. According to the chain detection device, when the chain detection work is started, the pull rod moves to drive the baffle to move, so that when the lifting plate moves upwards, the bearing capacity of the chain under different loads can be detected, and whether the strength standard of the design requirement is met or not is determined; according to the chain detection device, the situation that the chain is broken due to insufficient strength in use is avoided, meanwhile, the position of the chain can be limited, the chain is prevented from being suddenly bounced off or falling off under the action of pulling force, the chain can be rapidly installed at a proper position, the installation time is shortened, and the detection efficiency is improved.

This application discloses a storage cell inspection method, apparatus, device, storage medium, and product, relating to the field of inspection technology. The storage cell inspection method includes: responding to a timed inspection command, reading memory cells from a row address segment within a preset buffer to obtain read data, wherein the row address segment is obtained based on the memory address mapping of the memory cell; based on the read data, determining whether the target memory cell corresponding to the row address segment has an uncorrectable error; if so, saving the data in the target memory cell to a redundant row address and repairing the target memory cell. Since the row address segment is obtained based on the memory address mapping of the memory cell, the amount of data read sequentially from the row address segment is less than the amount of data read sequentially from each memory address, improving detection efficiency.

Embodiments of the present application provide a diopter detection method, device, host computer and system. The method is applied to the host computer. An imaging device connected to the host computer includes a liquid lens to be detected. The imaging device is configured to capture an image of a mark board by the liquid lens. Different positions of the mark board are provided with different marks. The method receives an image captured by the imaging device when the liquid lens is at different adjustment parameters. Then, a target mark in the image is determined. The clarity of the target mark is greater than that of other marks in the image. The diopter of the liquid lens at different adjustment parameters is determined based on the position of the target mark in the three-dimensional space. The method does not need to additionally configure a focal length instrument, thereby reducing the cost required for diopter detection. The method is implemented by the host computer, thereby reducing the manual participation link and improving the accuracy of diopter detection.

This disclosure provides an auxiliary device and method for unloading workpieces in laser cladding operations. The auxiliary device includes an industrial CT inspection chamber. Transition windows are provided at the front, rear, and one side of the industrial CT inspection chamber. A belt conveyor is located below the front end of the transition window. An inspection door is installed on the other side of the industrial CT inspection chamber. One side of the inspection door is rotatably connected to the industrial CT inspection chamber via a hinge, and the other side is locked to the industrial CT inspection chamber via a spring-loaded lock. A scanner housing is provided on the outer wall of the inspection door, and an X-ray scanner is installed inside the scanner housing. This solution addresses the problem that existing robotic arms significantly reduce the inspection efficiency after unloading laser cladding workpieces, and that the operation can only inspect one workpiece at a time, resulting in low efficiency.