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31results about How to "Easy to highlight" patented technology

Fault on-line detection method of steel wire rope conveyer belt based on texture regularity analysis

The invention relates to a fault on-line detection method of a steel wire rope conveyer belt based on texture regularity analysis, belonging to the field of fault detection. The problems that in the current fault detection of the steel wire rope conveyer belt based on X-ray, the real-time performance is worse, the accuracy rate is not high, the fault detection is mainly done basing on manual analysis, and the like are solved. According to the characteristics that the gray scale of an X-ray image of the steel wire rope conveyer belt is in regular variation and the texture of the X-ray image of the steel wire rope conveyer belt is in regular strike-shaped distribution, after the input image is subjected to normalization and standardization processes, parameter values of LRB (Light Regular Band) and DRB (Dark Regular Band) of each pixel can be progressively scanned and calculated, the parameter values of the LRB and the DRB of each pixel can be subtracted from the parameter values of the LRB and the DRB of the whole image, then the difference value can be compared with a threshold value obtained in a training stage, thus whether the fault exists or not can be judged, and a fault area can be detected from the fault image. According to the fault on-line detection method of the steel wire rope conveyer belt based on the texture regularity analysis, disclosed by the invention, the fault detection of the steel wire rope conveyer belt can be online, automatically and accurately realized.
Owner:TIANJIN POLYTECHNIC UNIV +2

High-resolution light guide plate image defect detection method

The invention provides a high-resolution light guide plate image defect detection method, including the following steps: the original picture of the light guide plate is collected, a light guide plateoriginal image is enhanced, a maximum inter-class variance method is used for threshold segmentation of that image enhancement image of the light guide plate, the connected domain is obtained from the threshold processing display graph, a light guide plate whole connected region is extracted with that lar area, a maximum area extraction graph is transformed into a shape, a light guide plate imageshape conversion map is adjusted in a gray value, the gray value adjustment map is partitioned, Gaussian bias is applied to the partition display image of the light guide plate, a mask process is performed on the Gaussian partial derivative display image, Fourier positive transform is carried out on the mask processing display graph, a sinusoidal shape band-pass filter is established, inverse Fourier transform is carried out on the convolution display graph, threshold treatment is carried out on the inverse Fourier transform display graph, the connected domain is obtained on the second threshold treatment display graph, defects are extracted on the second connected domain display graph, and defects are displayed.
Owner:杭州舜浩科技有限公司

Hyperspectral anomaly detection method and apparatus

The invention relates to a hyperspectral anomaly detection method and apparatus. The method comprises the steps of obtaining hyperspectral data of an object row by row; calculating a minimum row number k of the hyperspectral data required for determining background information; if a row mark number of a current row of the obtained hyperspectral data is greater than k, calculating an autocorrelation matrix of the current row of the hyperspectral data, taking the autocorrelation matrix as a first autocorrelation matrix, and taking a background autocorrelation matrix of all rows of the hyperspectral data before the current row as a second autocorrelation matrix; calculating a background autocorrelation matrix of the current row of the hyperspectral data and all the rows of the hyperspectral data obtained before the current row of the hyperspectral data; performing compression processing on the background autocorrelation matrix to obtain a compressed matrix; and performing anomaly detection on the current row of the hyperspectral data by utilizing the compressed matrix. According to the method and the apparatus, the anomaly detection is carried out row by row, so that the processing efficiency is improved, and the demands of special industries on real-time or quasi real-time processing of the hyperspectral data can be met.
Owner:INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI

Photographing method and mobile terminal

The invention discloses a photographing method, and a mobile terminal adopting the method. The method comprises the following steps: receiving size adjusting operation of a user for a viewing frame, wherein the viewing frame and the size adjusting operation are both located within a photographing preview interface; and carrying out photographing based on the viewing frame. The photographing methodand the mobile terminal provided by the invention have the advantages that the size of the viewing frame is adjusted before photographing, so that disturbing objects that are not expected to appear in a photo can be placed outside the viewing frame, and target objects that the user wants to photograph can remain in the viewing frame, which can more effectively highlight the target objects; and asthe viewing frame and the size adjusting operation are both located within the photographing preview interface, the visual focus of the user can be always kept on the photographing preview interfacewhen the user carries out the size adjusting operation on the viewing frame, which enables the user to view a picture in the viewing frame and the size adjusting operation at the same time, and further ensures high efficiency and high precision of the size adjusting operation.
Owner:VIVO MOBILE COMM CO LTD

Fault on-line detection method of steel wire rope conveyer belt based on texture regularity analysis

The invention relates to a fault on-line detection method of a steel wire rope conveyer belt based on texture regularity analysis, belonging to the field of fault detection. The problems that in the current fault detection of the steel wire rope conveyer belt based on X-ray, the real-time performance is worse, the accuracy rate is not high, the fault detection is mainly done basing on manual analysis, and the like are solved. According to the characteristics that the gray scale of an X-ray image of the steel wire rope conveyer belt is in regular variation and the texture of the X-ray image of the steel wire rope conveyer belt is in regular strike-shaped distribution, after the input image is subjected to normalization and standardization processes, parameter values of LRB (Light Regular Band) and DRB (Dark Regular Band) of each pixel can be progressively scanned and calculated, the parameter values of the LRB and the DRB of each pixel can be subtracted from the parameter values of the LRB and the DRB of the whole image, then the difference value can be compared with a threshold value obtained in a training stage, thus whether the fault exists or not can be judged, and a fault area can be detected from the fault image. According to the fault on-line detection method of the steel wire rope conveyer belt based on the texture regularity analysis, disclosed by the invention, the fault detection of the steel wire rope conveyer belt can be online, automatically and accurately realized.
Owner:TIANJIN POLYTECHNIC UNIV +2

A special abdominal belt for stoma

The invention discloses a bellyband special for a stoma. The bellyband comprises a first bellyband, a second bellyband, a left stoma hole and a right stoma hole. A fixing hole is formed inside t he first bellyband, the second bellyband is arranged at the left side of the first bellyband, a fixing block is arranged at the surface of the second bellyband, the fixing block is embedded into the fixinghole, the right stoma hole is formed inside the first bellyband, the right stoma hole is formed inside the second bellyband, elastic bands are arranged at the two sides of the first bellyband and thesecond bellyband, connecting belts are arranged at the two sides of the elastic bands, the hook faces of hook and loop fasteners are arranged at the right sides of the elastic bands, and the loop faces of the hook and loop fasteners are arranged at the left sides of the elastic bands. According to the bellyband special for the stoma, the hook faces and the loop faces of the hook and loop fasteners are attached when the bellyband is in use, the first bellyband and the second bellyband are fixed to the stoma, the size of a hole between the left stoma hole and the right stoma hole can be adjusted by adjusting the distance between the fixing block and the fixing hole, and a user can conveniently use the bellyband.
Owner:THE AFFILIATED HOSPITAL OF QINGDAO UNIV

Processing method of Pukeng tea

The invention discloses a processing method of Pukeng tea. The method includes the following steps: picking fresh leaves: picking the fresh leaves in grades according to tenderness; spreading the leaves: uniformly spreading the fresh leaves on bamboo strips, and performing drying in a ventilation and dry room for 3.5-5 h; performing enzyme deactivation: performing enzyme deactivation by using an iron pan or an enzyme deactivation machine, wherein the temperature is 220-300 DEG C, and the time is 5-10 min; performing twisting: performing twisting by using a twisting machine, wherein the time is8-10 min; performing primary drying: performing drying by using a dryer until the moisture content of the tea leaves is less than 12%; performing steaming: performing steaming by using a wooden steaming barrel, wherein the time is 35-40 min; performing secondary twisting: performing twisting by using a twisting machine, wherein the time is 8-10 min; performing pile fermentation: packing the tea leaves by using a cloth bag, knotting the bag mouth to form a tea bag, putting the tea bag on bamboo strips, and performing pile fermentation for 11-13 h; and performing secondary drying: performing drying by using a dryer until the moisture content of the tea leaves is less than 12% to obtain the finished tea. The method forms clear process parameters, makes the production standardized, solves theproblem of uneven quality of tea, and can also shorten the aging time and improve the efficiency.
Owner:清远市农业科技推广服务中心

Spatial Information Spatiotemporal Big Data Constraint Expression Method

The invention discloses a spatial information space-time big data constraint expression method. The method comprises the following steps of data acquisition, construction of a vector and grid compatible data structure, data comprehensive expression, data correction, space-time benchmark unification, space-time big data constraint and space-time big data cleaning and updating. According to the method, a multi-dimensional heterogeneous basic data organization unit and an organization system taking a topological relation between parent and child regions as a relation are established through normalization fusion of data structures; the organization modes of the layered spatiotemporal data and the framing spatiotemporal data are conveniently and comprehensively expressed; the space-time big data modeling method has the advantages that data can be highlighted conveniently, time synchronization and space benchmark unification in the space-time big data are achieved, space-space-ground integrated fusion of GNSS and the Internet of Things is achieved, theoretical support is provided for high time resolution and high space resolution. Meanwhile, a data constraint mechanism is formed before space-time big data modeling, deviation is removed conveniently, and precision is improved.
Owner:EAST CHINA NORMAL UNIV

High-power laser Bar packaging vacuum reflow furnace positioning clamp device

PendingCN112775519AEfficient assemblyControl the protrusion distance of the illuminated surfaceSoldering auxillary devicesChipsetSilicon chip
The invention relates to the technical field of ultra-precision electronic product processing, in particular to a high-power laser Bar packaging vacuum reflow furnace positioning clamp device which comprises a base, an etched silicon wafer positioning groove module and an adjusting and assembling module. The top of the base is provided with a right-angle clamping part for clamping an etched silicon wafer. The etched silicon wafer positioning groove module is installed on the right-angle clamping part and is used for clamping a chip set to be welded and enabling the chip set to be welded to abut against the etched silicon wafer. The adjusting and assembling module is used for positioning the etched silicon wafer positioning groove module. The high-power laser Bar packaging vacuum reflow furnace positioning clamp device has the beneficial effects that a workpiece is divided into a plurality of parts to be clamped on the base and the etched silicon wafer positioning groove module, and then all the parts are positioned through the adjusting and assembling module; the high position freedom degree of a probe clamp is ensured, the position change of the workpiece can be quickly coped with, and the workpiece can be accurately clamped; and relative independence of welding of the parts is ensured, movement of the previous part caused by placement of the next part is avoided, and packaging quality of finished products is improved.
Owner:烟台华创智能装备有限公司

Potato chip detumescence device and using method thereof

The invention provides a potato chip detumescence device and a using method thereof. The potato chip detumescence device comprises a shell with one end open, a sealing cover matched with the opening, a fixing mechanism used for fixing potatoes and a slicing mechanism used for slicing the potatoes, and the fixing mechanism comprises a fixator and a clamping ring in threaded connection with the outer circumferential wall of the fixator; the bottom end of the fixator is provided with an inserting needle inserted into a potato, a mounting hole is formed in the position, close to the opening, of the top of the shell, the clamping ring is fixedly connected with the mounting hole, sliding grooves are formed in the two side walls, opposite to the opening, of the shell, and the slicing mechanism comprises a fixing block, a blade and a pull rod. The two ends of the fixing block are provided with fixing shafts matched with the sliding grooves, the blade is fixed to the side, facing the opening of the shell, of the fixing block, and the two sides of the blade are provided with fixing rods connected with the fixing block. According to the potato chip detumescence device, potatoes can be conveniently sliced, potato slices can be conveniently fixed to the human body, and the potato slices can be prevented from being polluted.
Owner:WENZHOU PEOPLES HOSPITAL

Hyperspectral anomaly detection method and device

The invention relates to a hyperspectral anomaly detection method and apparatus. The method comprises the steps of obtaining hyperspectral data of an object row by row; calculating a minimum row number k of the hyperspectral data required for determining background information; if a row mark number of a current row of the obtained hyperspectral data is greater than k, calculating an autocorrelation matrix of the current row of the hyperspectral data, taking the autocorrelation matrix as a first autocorrelation matrix, and taking a background autocorrelation matrix of all rows of the hyperspectral data before the current row as a second autocorrelation matrix; calculating a background autocorrelation matrix of the current row of the hyperspectral data and all the rows of the hyperspectral data obtained before the current row of the hyperspectral data; performing compression processing on the background autocorrelation matrix to obtain a compressed matrix; and performing anomaly detection on the current row of the hyperspectral data by utilizing the compressed matrix. According to the method and the apparatus, the anomaly detection is carried out row by row, so that the processing efficiency is improved, and the demands of special industries on real-time or quasi real-time processing of the hyperspectral data can be met.
Owner:INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI

High-resolution light guide plate image defect detection method

The invention provides a high-resolution light guide plate image defect detection method, including the following steps: the original picture of the light guide plate is collected, a light guide plateoriginal image is enhanced, a maximum inter-class variance method is used for threshold segmentation of that image enhancement image of the light guide plate, the connected domain is obtained from the threshold processing display graph, a light guide plate whole connected region is extracted with that lar area, a maximum area extraction graph is transformed into a shape, a light guide plate imageshape conversion map is adjusted in a gray value, the gray value adjustment map is partitioned, Gaussian bias is applied to the partition display image of the light guide plate, a mask process is performed on the Gaussian partial derivative display image, Fourier positive transform is carried out on the mask processing display graph, a sinusoidal shape band-pass filter is established, inverse Fourier transform is carried out on the convolution display graph, threshold treatment is carried out on the inverse Fourier transform display graph, the connected domain is obtained on the second threshold treatment display graph, defects are extracted on the second connected domain display graph, and defects are displayed.
Owner:杭州舜浩科技有限公司
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