16results about How to "Reduce detection efficiency" patented technology

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 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 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 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 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.