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91results about How to "Quick Auto Detect" patented technology

Water alkalinity on-line measuring device based on solution image technology and measuring method thereof

The invention relates to a water alkalinity on-line detection device, a water alkalinity on-line measuring device based on solution image technology and a measuring method thereof, and is characterized in that according to the invention, based on the detection of solution image RGB values during the titration of water to be detected by a HCl solution, an image RGB value-titration solution volume measuring curve is plotted, and the water alkalinity of the solution to be detected is calculated according to the titration solution volume corresponding to an inflection point of the image RGB value measuring curve. With computer image processing technology, the invention establishes a mathematical model of solution RGB values with the change of the titration solution volume during titration, determines the titration end point automatically, establishes a color constancy algorithm model based on a neural network algorithm, and thus increases the precision and reliability of alkalinity measurement. With the device of the invention, on-line measurement of phenolphthalein alkalinity and total alkalinity can be performed optionally, and the operation is convenient. The device is applicable to industry of electric power, petroleum, chemical industry, metallurgy, etc.
Owner:NORTHEAST DIANLI UNIVERSITY

Water hardness on-line measurement device based on solution image technology and measurement method thereof

The invention relates to a water harness on-line measurement device. A measurement method of the water hardness on-line measurement device based on solution image technology is characterized by adding dropwise EDTA into a quantitative water solution with the pH of 10.0 plus or minus 0.1 by using a constant flow adding pump with chrome black T or acid chrome blue K as indicator, L-cysteine hydrochloride and triethanolaminesolution as screening agent and ethylenediaminetetraacetic disodiumsalt solution as titrant, recording the volume of added EDTA (Ethylene Diamine Tetraacetic Acid) solution by a computer, simultaneously collecting water solution image colors by using a CCD (Charged Coupled Device) image sensor, displaying image color RGB (Red, Green and Blue)-titrating solution volume real-time curve on a computer screen, and calculating the water hardness according to the titrating solution volume corresponding to the inflection point of the RGB-titrating solution volume curve, wherein the detection precision is improved by adopting a color constancy algorithm based on a neutral network to reduce the interference of factors such as a light source, sensor noise and the like. The invention have the choices of high hardness and low hardness on-line measurement, is simple and convenient in operation, and can be used in the industries of electric power, petroleum, chemical industry, metallurgy and the like.
Owner:NORTHEAST DIANLI UNIVERSITY

Artificial intelligence-based hot-rolled strip steel scabbing defect detection method and system

The invention relates to the technical field of artificial intelligence, in particular to an artificial intelligence-based hot-rolled strip steel scabbing defect detection method and system. The method comprises the following steps: acquiring an RGB image of hot-rolled strip steel and converting the RGB image into a grey-scale map; filtering the grey-scale map, carrying out straight line detection and edge detection on the processed grey-scale map, carrying out overlap ratio judgment on an obtained straight line and a first edge line, and filtering out an isolated straight line and an error edge line to obtain a second edge line; performing intersection point screening on the second edge lines, so that the second edge lines capable of obtaining the complete contour through intersection points and/or the second edge lines forming the complete contour with the gray-scale map boundary are/is reserved and recorded as third edge lines, and a scabbing area is determined; and judging whether the edge of the scabbing area has a warping part or not according to whether a shadow exists on the third edge line of the scabbing area or not, and obtaining the warping degree of the scabbing area. According to the embodiment of the invention, noise interference can be greatly eliminated, and the scarring defect of the strip steel can be accurately and quickly detected.
Owner:余波

True position detecting method for pin of socket connector of vehicle controller

The invention discloses an automatic true position detecting method and specifically relates to a true position detecting method for a pin of a socket connector of a vehicle controller. A detection system includes an image collecting unit, a motion control unit, a servo motor unit, an upper computer processing unit and an auxiliary device. A method of arranging three cameras in three zones including an A zone, a B zone and a C zone for detection is designed according to distribution characteristics of socket connectors. After the system is started, the motion control unit drives a to-be-detected product to a detection station and triggers a photo taking signal. The image collecting unit collects images and sends the images to the upper computer processing unit for processing and the processed data is recorded. An image processing algorithm is used for detecting the true position of the pin of the socket connector and a detection result is displayed and an implementation signal is given out. Later, the motion control unit drives the to-be-detected product to a socket connector station for a next step. By using the method provided by the invention, quick, accurate and automatic detection of true position of the pin of the socket connector of the vehicle controller can be realized.
Owner:黑龙江至晟车辆技术服务有限公司

Three-dimensional visual detection method and detection device for road surface damage information

The invention relates to a three-dimensional visual detection method and detection device for road surface damage information. The detection method comprises the following steps that optical grating fringes are projected onto a road surface to be detected; projected optical grating fringe images are photographed correspondingly, and image information is transmitted to a processor; the image information is processed, and three-dimensional road surface image data are formed; three-dimensional reconstruction of the road surface is completed according to the three-dimensional road surface geometric data; color rendering is conducted on the three-dimensional road surface images, and road surface damage types of the road surface images subjected to color rendering are recognized through a connected domain labeling method; road surface damage characteristics of the road surface information are worked out; and finally the worked-out road surface damage characteristics serve as detection results and are output. The detection method is accurate in detection, high in efficiency and capable of detecting various kinds of road surface damage information. The invention further relates to the three-dimensional visual detection device for the road surface damage information. The detection device comprises an optical grating projector, two CCD cameras, an optical-electricity encoder and a detection control computer.
Owner:CHINA ACAD OF TRANSPORTATION SCI

Speckle pattern-based structured light camera row deviation automatic detection method and device

The embodiment of the invention provides a speckle pattern-based structured light camera row deviation automatic detection method and device. The method comprises the following steps: extracting a speckle pattern of a test object as a test pattern; extracting a depth map and a saliency map corresponding to the test map; further determining a saliency mask corresponding to the saliency map; processing the saliency mask through flooding filling to obtain an extended saliency mask used for identifying an extended salient region in the saliency map; determining that the total number of the pixel points with the depth values in the corresponding region of the depth map in the extended salient region of the extended saliency mask identifier is the effective number of the depths; and finally, judging whether the structured light camera to be detected has row deviation or not based on the effective number of the depths and the total number of the pixel points in the extended salient region. According to the method and the device provided by the embodiment of the invention, whether a test speckle pattern shot by a to-be-tested structured light camera has the row deviation or not can be quickly and automatically detected, and time delay caused by re-calibration when the camera is used each time is avoided.
Owner:合肥的卢深视科技有限公司

Automatic detection, trimming and sorting device and method for large-array resistance type strain gauges

The invention discloses an automatic detection, trimming and sorting device for large-array resistance type strain gauges. The automatic detection, trimming and sorting device comprises an automatic detection device, an automatic trimming device, an automatic sorting device, a computer data collection board card, a table type digital multimeter and an output amplification board. The automatic detection device comprises a detection machine frame, a detection positioning and fixing mechanism and a detection mechanism. The automatic trimming device comprises a trimming machine frame, a trimming positioning and fixing mechanism and a trimming mechanism. The automatic sorting device comprises a sorting machine frame, a sorting positioning and fixing mechanism, an adsorption sorting mechanism and a positioning and sorting mechanism. The detection mechanism comprises a first air cylinder sliding platform, a second air cylinder sliding platform and a first pneumatic loop. The trimming mechanism comprises a linear swinging combined air cylinder, a cutter rest and a second pneumatic loop. The adsorption sorting mechanism comprises an adsorption head installation box and a plurality of vacuum adsorption heads. The invention further discloses an automatic detection, trimming and sorting method for the large-array resistance type strain gauges. By means of the automatic detection, trimming and sorting device and method for the large-array resistance type strain gauges, the production efficiency can be improved, labor intensity of workers is relived, and the production cost is reduced.
Owner:SHAANXI UNIV OF TECH

Non-contact visual detection method for Mark positioning of mobile phone touch screen

The invention belongs to the technical field of detection of electronic products and discloses a non-contact visual detection method for Mark positioning of a mobile phone touch screen. According to the method, a mobile phone touch screen detection part is divided into two regions of A and B; the region A is photographed by a first black and white industrial camera for detection; the region B is photographed by a second black and white industrial camera for detection; a Mark and a Circle of the region A are photographed by the first black and white industrial camera for detection; and the Markand the Circle of the region B are photographed by the second black and white industrial camera for detection. After photographing, an image is collected by an image collection module and image information is transmitted to an upper computer module; the upper computer module processes data, detects a deviation distance between a Mark central point and a Circle center through an image processing algorithm, displays a detection result and gives out a completion signal; and then a motion control module returns to an initial position to wait for detection of a next workpiece. With the detection method, the rapid, accurate and automatic detection for Mark positioning of the mobile phone touch screen can be realized.
Owner:JIANGNAN UNIV

Work piece automatic welding method based on grating projection three-dimensional reconstruction

The invention discloses a work piece automatic welding method based on grating projection three-dimensional reconstruction. Welding industrial automation is a main development direction of future welding, and most of conventional welding robots adopt a teaching and playback working mode, and operators are required to approach processing stations to complete teaching, and in addition, large teaching difficulties are presented in large-scale work pieces with complicated structures, and therefore welding effect is hard to guarantee. The work piece automatic welding method based on the grating projection three-dimensional reconstruction adopts the grating projection technology for three-dimensional reconstruction of detected work pieces, and the contour three-dimensional information of the welding work pieces is acquired by combining with two-dimensional contour extraction, and is used for the automatic control of the welding robots. The work piece automatic welding method is advantageous in that the three-dimensional information of the work pieces is detected quickly, and a measuring range is wide, and measuring precision is high; the work piece automatic welding method is directly used for the operation trajectory control of the welding robots, and the full automation of the work piece detection and welding is realized.
Owner:SOUTHWEST PETROLEUM UNIV

Device and method for automatically detecting defects of cylinder liners by aid of X-rays

The invention relates to X-ray nondestructive detection technologies, in particular to a device and a method for automatically detecting defects of cylinder liners by the aid of X-rays. The device and the method have the advantages that the technical problem of inaccurate detection results due to the fact that defects of products cannot be accurately reflected by images acquired when components such as cylinder liners with tubular structures are detected by the aid of rays at present can be solved by the aid of the device and the method; an imaging process is a single-wall imaging process implemented by the aid of linear-array type detectors arranged inside the cylinder liners, images of single walls, which are positioned between ray sources and the detectors and are close to imaging surfaces of the detectors, of the cylinder liners are vertically formed by the aid of image data of the cylinder liners, accordingly, the imaging process is essentially equivalent to a mode in which the cylinder liners are spread to form rectangular panels and then the rectangular panels are scanned by the linear-array type detectors columns by columns to form the images, and the shortcoming of sine effects due to arc lengths can be overcome; the resolution of the images can be obviously improved by the single-wall imaging process as compared with double-layer wall imaging, and irregular cross imaging interference of threads of front and rear walls during double-layer wall imaging can be effectively prevented under the condition that the cylinder liners are provided with external threads.
Owner:ZHONGBEI UNIV

Automatic detecting device and method for large-array resistance strain gauge

The invention discloses an automatic detecting device for a large-array resistance strain gauge. The automatic detecting device comprises a frame, a positioning and fixing mechanism, a detecting mechanism, a computer, a data acquisition board, a table digital multimeter, and an output amplification board. The positioning and fixing mechanism comprises a two-dimension mobile platform, a vacuum adsorption table, and a vacuum adsorption loop. The vacuum adsorption table comprises an adsorption table lower cover and an adsorption table upper cover. The vacuum adsorption loop comprises a vacuum pump, a vacuum filter, a vacuum degree regulating valve and a vacuum solenoid valve. The detecting mechanism comprises a first cylinder sliding table, a cylinder sliding table installation plate, a second cylinder sliding table, a pneumatic loop, a probe box, a detecting circuit board, and a spring probe array. The pneumatic loop comprises an air pump, an air filter, a reducing valve, and a pressure gauge. The invention further discloses an automatic detecting method for the large-array resistance strain gauge. The automatic detecting device is novel and reasonable in design, low in production cost, high in operation reliability, reduces worker labor intensity and product production cost, and achieves high popularization and application value.
Owner:SHAANXI UNIV OF TECH

Rapid satellite image stretching deformation detection method based on GPU-CPU (graphics processing unit-central processing unit) collaboration

The invention discloses a rapid satellite image stretching deformation detection method based on GPU-CPU (graphics processing unit-central processing unit) collaboration. The method comprises steps asfollows: a CPU terminal loads an original satellite image, RPC (rational polynomial coefficient) parameters and DEM (digital elevation model) and solves the size and range of a corrected orthoimage through iteration; the CPU terminal designs allocation of a GPU thread grid and copies corresponding data to a corresponding video memory from an internal memory; a GPU terminal performs parallel computing on pixel coordinates, corresponding to the original satellite image, of each pixel according to the thread grid; the GPU terminal counts the overlapping times of current pixels and surrounding pixels and performs stretching pixel judgment; the GPU terminal performs corrosion processing and expansion processing on a binary image according to the thread grid; the CPU terminal copies a binary image result to the internal memory from a global memory and vectorizes the binary image result to obtain vector data of a stretching deformation area. The method has the remarkable effects that rapid automatic detection of the stretching deformation area in a satellite image is realized, and the lookup and quality control efficiency of stretching deformation in the optical remote sensing satelliteorthoimage is greatly improved.
Owner:CHONGQING GEOMATICS & REMOTE SENSING CENT

Automatic detection system and method for spherical fuel element fuel-free section

The invention relates to the field of nondestructive testing, provides an automatic detection system and method for a spherical fuel element fuel-free section, and aims to solve the problem that spherical fuel element fuel-free sections in the prior art are insufficient in detection precision, detection speed, detection reliability. The automatic detection method comprise the following steps: the transmitted electron images of spherical fuel elements are acquired through an X-ray nondestructive detection real-time imaging technique, the distribution situation of more than ten thousand fuel particles with diameters of greater than 400 micrometers in fuel elements with diameters of greater than 600 millimeters can be acquired through processing the images, whether fuel particles exist in specific areas or not is examined, and finally qualified and unqualified spherical fuel elements are separated to finish the automatic detection process according to automatic detection results. According to the invention, the automatic detection system and the automatic detection method can realize the fast and automatic detection of the spherical fuel elements fuel-free section, meet the detection efficiency design objective of at least two fuel elements every minute, and reach the detection result that the omission ratio of the unqualified products is 0% in a series of verified experiments.
Owner:TSINGHUA UNIV +1

Method for shot deviation in seismic prospecting and method for positioning correct shot position

The invention provides a method for shot deviation in seismic prospecting and method for the positioning correct shot position. The method for shot deviation includes picking up the first-arrival time of the single-shot data; constructing the corresponding offset distance-first arrival time relation for each shot point in the serial shot point including the shot point and the receiver point position relation data; finding out the optimal target offset distance-first arrival time relation for the condition that the first-arrival time is gradually increased along the increasing of the offset distance; comparing the shot point corresponding to the target offset distance-first arrival time relation with the shot pint recorded in the trace header of the single-shot data, if the coordinate positions of the shot points are not consistent, determining that the shot detection relation of the shot is incorrect (namely, deviated), and meanwhile, taking the shot point corresponding to the target offset distance-first arrival time relation as a correct shooting position. According to the invention, the shot deviation of the single-shot record can be rapidly and accurately detected; and meanwhile, the correct shooting position can be pointed out, and the need of field single-shot onsite quality control can be met.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1
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