257results about How to "Uneven solution" patented technology

In an image display device which includes an image display panel, in which two or more groups of particles having different colors and different charge characteristics are sealed in a plurality of cells formed by partition walls between two substrates, at least one of two substrates being transparent, and, in which the particles, to which an electrostatic field produced by electrodes provided to both of the substrates is applied, are made to move so as to display an image, as the electrodes provided on two substrates, use is made of a pattern electrode patternized in such a manner that a coating area of the electrode satisfies a predetermined condition with respect to a projected area of respective cells (first invention) or a pattern electrode patternized in such a manner that no electrode portion is formed at a vertically lower portion in respective cells (second invention).

The invention discloses a distributed database system and a method for building an index in the distributed database system. The distributed database system comprises a plurality of distributed storage units, an index memory, a resolver, an index query module and a parallel processing engine, wherein the distributed storage units store a plurality of data block files by sections; the index memory stores the indexes of the data block files; the resolver resolves a query sentence initiated by a user and selects a corresponding query index; the index query module searches the indexes of the data block files according to the selected query index to obtain at least one query data block set; the query data block set comprises an index key value and records the position information of the data block files corresponding to the index key value in the data block files; and the parallel processing engine splits the at least one query data block set and initiates a parallel scanning task.

The invention belongs to the field of electrode material synthesis, and relates to a sodium-titanium phosphate / carbon composite material and a preparation method and use thereof. The sodium-titanium phosphate / carbon composite material comprises secondary particles formed by clustering primary particles, the primary particles comprise sodium-titanium phosphate particles and carbon layers coated on the surfaces of the sodium-titanium phosphate particles, and the carbon layers are prepared through two times of carbon coating. According to the sodium-titanium phosphate / carbon composite material and the preparation method and use thereof, by means of preparing a precursor of the sodium-titanium phosphate and then adopting a spray drying method to carry out primary carbon coating and secondary carbon coating, the sodium-titanium phosphate / carbon composite material having a uniform and compact coating carbon layer is prepared, and the problem that the coating carbon layer obtained by the primary carbon coating is not uniform is solved. The composite material is good in stability, electrodes prepared from the sodium-titanium phosphate / carbon composite material and assembled batteries have excellent electrochemical properties, the discharge capacity is above 115mAh / g, and the capacity retention ratio is above 95% after 500 weeks of circulation.

A dermabrasion hand tool for abrasively removing a skin surface by means of an abrasive stream projected onto the skin surface to be removed. The hand tool includes an elongated manipulative body having a longitudinal axis and first and second opposite ends. The hand tool also includes an operative head through which the abrasive stream is projected onto the skin surface to be removed and through which the removed skin surface and used abrasive stream are evacuated, the operative head being removably mounted onto the first end of the manipulative body. The hand tool further includes a supply channel for supplying the abrasive stream to the operative head from a supply stream source, and an evacuating channel for evacuating the removed skin surface and used abrasive stream from the operative head to an evacuating means, both of said channels extending within and along the manipulative body and each having first and second extremities located respectively at the first and second ends of the manipulative body. The hand tool is characterized in that its operative head has a projection head for projecting the abrasive stream orthogonally to the skin surface to be removed; an evacuation chamber operatively connected to the evacuating channel for facilitating evacuation of the removed skin surface and used abrasive stream into the evacuating channel; and rotation-inducing mechanisms for giving a rotational pattern to the abrasive stream projected from the operative head. The hand tool enables a controlled and adjustable removal of superficial skin surface. Furthermore, the hand tool enables a substantially even skin abrasion pattern, both in surface geometry and in time. Moreover, the hand tool enables to project and retrieve the abrasive stream to and from the skin surface to be removed in a rotational pattern and orthogonally thereto. The hand tool is also easy to assemble, easy to use, and easy to maintain.

The invention discloses a composite coating of diamond / W-C gradient structure, and a preparation method thereof. The composite coating is characterized in that a composite coating which takes a W-C gradient structure as a transition layer and takes a diamond coating as a wearable coating is formed on a WC-Co hard alloy; the preparation method comprises the steps as follows: the hard alloy is used as a sample; a surface layer WC is dipped in Murakami reagent so as to form a Co-rich layer; subsequently, pure tungsten is taken as target material and argon and carbonaceous gas are used as reaction gases to prepare the W-C gradient structure of different structures as the transition layer by a reaction sputtering method by adjusting the concentration of carbonaceous active gas in the reaction gas, thus preparing the diamond wearable coating by a chemical vapor deposition technique. The composite coating solves the problem of the bonding strength of the film / substrate and ensures the surface smoothness of the diamond film.

The invention provides a chemical method for synthesizing flaky CuxSy nanocrystalline optoelectronic film controllably at a low temperature. The method comprises the following steps: firstly adding sulfur powder in a container, secondly adding organic solvent N,N-dimethylformamide or absolute alcohol, wherein the volume of organic solvent is more than a half of the capacity of the container; standing at 0-60 DEG C for 1h to ensure that the sulfur powder dissolved in organic solvent is saturated, horizontally placing substrate material with a new and clean metal copper surface on the bottom of the container to avoid directly contacting with sulfur powder, reacting at 0-60 DEG C for 5-24h, cleaning the product with absolute alcohol, drying at room temperature to in-situ prepare the big area film material composed of flaky CuxSy nanocrystalline on the metal copper surface of the substrate material, wherein x:y=1-2. The method of the invention adopts low temperature, has low energy consumption, is simple, green and environmentally friendly and particularly applicable to large-area industrial production, and does not use any template, add any surfactant and perform complicated post-processing operations such as purification.

The invention provides a pixel circuit, a driving method of the pixel circuit and a display device with the pixel circuit. The pixel circuit comprises a first switch tube, a first capacitor, a second capacitor, a third capacitor, a second switch tube, a third switch tube, a fourth switch tube, a fifth switch tube and a sixth switch tube, wherein the source electrode of the first switch tube is connected with a data signal end; the gate electrode of the first switch tube is connected with a first control signal end; the first end of the first capacitor is connected with the drain electrode of the first switch tube; the first end of the second capacitor is connected with a second voltage signal end; the second end of the second capacitor is connected with that of the first capacitor; the first end of the third capacitor is connected with the first control signal end; the second end of the third capacitor is connected with the gate electrode of a driving tube; the source electrode of the second switch tube is connected with the gate electrode of the driving tube; the drain electrode of the second switch tube is connected with that of the driving tube; and the gate electrode of the second switch tube is connected with the first control signal end. The pixel circuit provided by the invention is used for compensating threshold voltage uniformity of the driving tube in the pixel circuit and solves the problem of poor luminance uniformity of an LED.

The invention discloses a temperature-control aromatic double-layer microcapsule and a preparation method thereof. The temperature-control aromatic double-layer microcapsule is prepared by the following steps: firstly, synthesizing an organic phase-change material microcapsule by using polymethyl methacrylate as an inner layer wall material through an emulsion polymerization method; then, fully mixing essence with the organic phase-change material microcapsule under high-speed stirring to uniformly distribute the essence on the surface of the organic phase-change material microcapsule to obtain an organic phase-change material microcapsule with adsorbed essence; finally, wrapping beta-cyclodextrin on the organic phase-change material microcapsule with adsorbed essence to obtain the temperature-control aromatic double-layer microcapsule with aromatic flavor and capable of regulating temperature. The temperature-control aromatic double-layer microcapsule prepared in the invention is environment-friendly, non-toxic, high in mechanical strength and good in heat resistance, and the organic phase-change material is entitled with pleasurable aromatic flavor while having a phase-change function, so that the application field of the organic phase-change material is broadened.

The invention relates to Internet information retrieval and discloses a method for detecting Internet cheats on the basis of a small sample set to strike search engine cheating behaviors which become severe increasingly. The invention uses the iterative execution of self-learning on the basis of a classifier and the linking learning process on the basis of an Internet topological structure to continuously expand a training set aiming at the problem that a detection sample has high collecting cost to realize that search engine cheats are detected under the small sample set, an integrated down sampling strategy is adopted in the identification process, and information which is contained in websites which exist widely on Internet and have high reputation is fully used. Finally, label transmission along the Internet topological structure and on the basis of prediction cheating degree is carried out to realize the optimization of detection results. Experiments are used to show that the method can effectively detect the cheating behaviors.

The invention discloses a detachable electromagnetic induction heater for diameter-expanded bend-pushed large-diameter elbow, which comprises a detachable electromagnetic induction heating coil, wherein a molding core head for expanding diameter and pushing bend is sleeved with the detachable electromagnetic induction heating coil; a central axis of the detachable electromagnetic induction heating coil is coincident with a central axis of the molding core head; the molding core head is a cleat-shaped core head that comprises an extension section, a deformation section and a shaped section; the detachable electromagnetic induction heating coil comprises a straight line section heating coil and a bended section heating coil; the straight line section heating coil and the bended section heating coil are connected by copper bars; the straight line section heating coil is annularly wound on the extension section; and the bended section heating coil is annularly wound on the deformation section and the shaped section. The detachable electromagnetic induction heater is simple in structure, reasonable in design, simple and convenient to use and operate, strong in operability, good in using effect, not only can improve the pipe blank feeding efficiency when expanding the diameter and pushing the bend of the large-diameter elbow, and also can improve the heating efficiency and the uniformity of the pipe blank.

The invention discloses an ultrathin nano-scale anticorrosion coating and a self-leveling dip-coating process thereof. The ultrathin nano-scale anticorrosion coating does not contain metal and has ultra-strong scraping resistance, wear resistance and corrosion resistance. The coating has a good self-leveling effect in a coating process and can be used for replacing traditional electro-galvanizing and hot galvanizing processes, and after dip-coating, a coating layer is ultra-thin, wide in adaptability and low in production cost. According to the technical scheme, the ultrathin nano-scale anticorrosion coating contains the following components in percentage by weight (100% in total): 10%-40% of modified resin, 2%-5% of a curing agent, 0.1%-0.5% of a curing accelerator, 2%-8% of an anticorrosion inhibitor, 1%-2% of a nano-scale wax powder, 0.01%-0.05% of graphene powder, 5%-15% of a metal composition and 30%-70% of a solvent.

The invention provides a computing resource sharing method based on block chain technology, includes dividing calculation nodes of a calculation force supplier into an analysis group and an integration group, and slicing data to be processed into multiple data blocks and packaging, wherein the number of data packets is the same as the number of calculation nodes in the analysis group; a computingpower demander creating an intelligent contract and sending the intelligent contract to a block chain network; the computing power demander sending the data packet to the corresponding analysis groupcomputing node according to the mapping table in the intelligent contract; the analysis group computation node receiving the data packet and executing the computation task to obtain the computation result; according to the mapping table in the intelligent contract, the computing node of the integration group integrating the computing results and sending them to the intelligent contract after the computing tasks of the computing nodes of each analysis group are completed, and then the intelligent contract transmitting the results to the computing power demander. The invention also provides a block chain system. The implementation of the invention can share computing resources and improve system stability and safety.

The invention discloses an embedded type touch screen and a display device. An insulating layer is provided with at least a first via through the insulating layer in each area where respective capacity electrodes and wires are overlapped, the respective capacity electrodes are electrically connected with corresponding wires through the corresponding first vias, positions, corresponding to the first vias, of the respective capacity electrodes are provided with second vias in areas where the respective capacity electrodes and wires except the corresponding wires are overlapped, the second vias are through the respective capacity electrodes, and an orthographic projection of the second vias on a lower substrate covers an orthographic projection of the first vias on the lower substrate. According to the embedded type touch screen, on the basis that the first vias in the insulating layer are evenly distributed, correction connection of the respective capacity electrodes and the wires is guaranteed, so that the problem of uneven display images caused by uneven distribution of the vias in the insulating layer in the prior art is solved.

The invention discloses aluminum alloy and an LED lamp substrate applying the aluminum alloy. The aluminum alloy comprises the following compositions in percentage by weight: more than or equal to 0.5 percent and less than or equal to 12 percent of Si, more than or equal to 0.1 percent and less than or equal to 1.5 percent of Mn, less than or equal to 1.2 percent of Fe, less than or equal to 4.5 percent of Cu, less than or equal to 0.5 percent of Mg, more than or equal to 0.005 percent and less than or equal to 0.85 percent of RE, less than or equal to 0.5 percent of inevitable impurities, and the balance of Al, wherein the RE is selected from at least one of La, Ce, Nd and Yb. The LED lamp substrate is provided with a copper plate and an aluminum alloy plate, and the copper plate and the aluminum alloy plate are jointed into a whole through high pressure forming. The aluminum alloy has excellent thermal conductivity and high temperature antioxidation performance, and is suitable for manufacturing the LED lamp substrate. The LED lamp composite substrate completely solves the problems of deformation and oxidation caused by uneven thermal expansion coefficients of two materials for the substrate and a lamp shell in the prior art, and contributes to manufacture of high power LED lamps in low cost.

The invention relates to an area array laser radar and a mobile platform. An emission lens comprises an optical reshaping structure arranged in a light emission direction of an emission light source,wherein the optical reshaping structure comprises at least one columnar lens; a length direction of a columnar bulge arranged on one side, close to the emission light source, of each columnar lens isperpendicular to a divergence direction of an emission beam; and the emission beam is a uniform beam with a set divergence angle and a set shape after passing through the optical reshaping structure.The invention further provides the area array laser radar which comprises an area array light emission mechanism, an area array light receiving mechanism and a master control board, wherein the area array light emission mechanism comprises an emission light source, a driving emission circuit and the emission lens. The invention further provides the mobile platform. The problem of the nonuniform emission beam of an emission system of the common area array laser radar is solved, and the testing and operating safety and accuracy are improved.

The invention provides an ink formula, a photoelectric device and a preparation method for the functional layer of the photoelectric device. The ink comprises a component A and a component B, wherein the component A comprises first liquid; the component B comprises second liquid and functional materials dispersed in the second liquid; the boiling point of the first liquid is higher than the boiling point of the second liquid by at least ten DEG C; the first liquid and the second liquid do not mutually dissolve; the solubility of the functional materials in the second liquid is higher than or equal to 1g, and the solubility of the functional materials in the first liquid is less than or equal to 0.05g; the density of the first liquid is greater than the density of the second liquid; the range of a ratio of the surface tension of the first liquid to the surface tension of the second liquid is 0.8-1.2; the second liquid is volatilized earlier than the first liquid; along with the volatilization of the second liquid, two parallel interfaces are formed between the component B and external atmosphere as well as the component A; along with the volatilization of the first liquid, solids which are evenly dispersed on the interface form an even film layer on a matrix so as to solve the problem of unevenness in film formation.

The invention provides an outer package defect detection method. The method comprises the steps of obtaining an outer package picture as a data set; performing data preprocessing on the data set; setting the size of a defect target candidate box through a clustering algorithm; inputting the preprocessed data set into a Cascade R-CNN model, and performing region-of-interest extraction on the data set; normalizing the size of the feature map of the region of interest; in the Cascade R-CNN model, adopting a pre-trained ResNet-50 with a deformable convolution v2 as a backbone network, carrying outconvolution, and extracting features; and S44, framing out defects and marking defect categories. The outer package defect detection method is simple in calculation process and capable of rapidly positioning and recognizing defects, the FPN feature extraction method is adopted, features with different resolutions are combined, the combined features are used for enhancing multi-level features in FPN, and recognition is more accurate.

The invention relates to a transmitting lens, an area array laser radar, and a movable platform. The transmitting lens comprises an optical shaping structure which is set in a light transmitting direction of a transmitting light source. The optical shaping structure comprises at least one cylindrical lens, and the length direction of a cylindrical projection disposed at one side, close to the transmitting light source, of the cylindrical lens is perpendicular to the divergent direction of a transmitting light beam. The transmitting light beam becomes a uniform light beam with a set divergenceangle and a set shape after passing through the optical shaping structure. The invention also provides the area array laser radar, and the laser radar comprises an area array light transmitting mechanism, an area array light receiving mechanism, and a main control board. The area array light transmitting mechanism comprises a transmitting light source, a drive transmitting circuit and the transmitting lens. The invention also provides the movable platform. The invention solves a problem that transmitted beams of a transmitting system of a conventional area array laser radar are not uniform, and the testing and operation safety and accuracy are improved.

The present invention relates to a movable scrub-grassland field test wind tunnel device. The wind tunnel device is composed of a power section 1, a power section 2, a first test section 3, a second test section 4, a sand feeding device 5, a swing mechanism 6 and a pedestal support frame. Through adoption of a peripheral enclosed-type structure, the movable scrub-grassland field test wind tunnel device solve the problem that a traditional U-shaped structure causes an uniform air-flow flow field, simulate natural wind in various states such as direct flow wind, whirlwind, inclination wind and complex wind with various combination and complete the whole plant salix shrub field blowing test, may perform repeated tests, and provides a lot of real and efficient data for scientific research.

Glaring and uneven luminance on a screen is limited when used for image displaying for a liquid crystal display unit or the like. A surface light source unit comprising a light emitting unit (22) using an LED or the like, and a light guide plate (23) for guiding light emitted from the light emitting unit (22) to spread it over the entire light output surface, wherein many deflection patterns (34) are provided on the rear surface of the light guide plate (23), and the deflection patterns (34) are used for reflecting a light in the light guide plate (23) to enable the light to be outputted from the light outputting surface of the light guide plate (23). When a polar coordinate using as the origin the center point set in the vicinity of one corner of the light guide plate is assumed, a location point (Rm, thetam) of a deflection pattern (34) is expressed in the following expressions (Ro > 0). Rm= Rm-1 + (1 / Rm-1) thetam= thetam-1 + 137.5 DEG.

The invention belongs to the field of preparation of organic and inorganic nano composite materials, and particularly relates to a graphene-like carbon nitride / ferroferric oxide / polyaniline nano composite wave-absorbing material and a preparation method thereof. According to the nano composite wave-absorbing material, multi-pore graphene-like carbon nitride is used as a carrier, and magnetic nanoparticle ferroferric oxide and conductive polymer polyaniline are used as covering layers. The preparation method comprises the following steps: performing heating reflux on g-C3N4 used as a carbon source and Fe(acac)3 used as an iron source through a polyol method to obtain g-C3N4 / Fe3O4, adding an initiator to enable an aniline monomer to be polymerized, and preparing the g-C3N4 / Fe3O4 / PANI nano composite wave-absorbing material. The material is provided with uniform covering layers and is high in dispersibility and mangnetic responsiveness and excellent in wave-absorbing performance. The material and 50 weight percent of paraffin are uniformly mixed and then are pressed to prepare a sample. When the thickness of the sample is 2 to 4 mm, the maximum peak value (RLmin) of reflection loss isup to -50 dB; by adjusting the thickness of the nano composite wave-absorbing material and paraffin mixed material, the effective absorption broadband (RLmin less than -10dB) may be up to 7 GHz.

The invention provides a cotton foreign fiber image online dividing method and a cotton foreign fiber image online dividing system. The cotton foreign fiber image online dividing method includes the following steps: S1, receiving cotton foreign fiber images, converting the cotton foreign fiber images to gray-level images and negating the gray-level images; S2, processing the negated gray-level images in blocks and judging whether to further process the gray-level images in refining mode; S3, reading image blocks needing refining processing, obtaining revised background gray-level images, leading the background gray-level images to subtract the original gray-level image blocks to obtain image blocks with backgrounds removed, and cutting the images in an OTSU method; and S4, performing expansive operation on the image blocks, comparing corresponding edge pixels of adjacent image blocks, and performing image linking on cracked foreign fiber target images in multiple images or image blocks based on overlap ratio of the corresponding edge pixels. The cotton foreign fiber image online dividing method and the cotton foreign fiber image online dividing system can effectively improve imagecutting speed and ensure cutting quality of the images.

The invention relates to a chemical method for in situ synthesis of platy silver sulphide nano crystal photoelectric film at low temperature. The method includes that firstly sulphur powder is added into a container, and then organic solvent is added, volume of organic solvent is more than 1 / 2 of volume of the container, and finally base material with clean metal silver surface is placed at the bottom of the container in inclining or horizontal way, thus avoiding direct contact with sulphur powder. The base material and sulphur powder are immersed under solvent liquid level and react for 4-184 hours at the temperature of 20-60 DEG C, concentration of simple substance sulphur powder in reactant is maintained to be saturate, namely film material composed of platy silver sulphide nano crystal is prepared on the surface of the base material with clean metal silver surface by in situ, and product is washed by absolute ethyl alcohol and dried at room temperature. The method for preparing base material with clean metal silver surface includes that base material with metal silver surface is placed into absolute alcohol, is cleaned by an ultrasonic cleaner for 3min and then is soaked in DMF or absolute alcohol for spare use. The invention can be carried out at low temperature, has low energy consumption and is convenient and efficient, thus being beneficial to industrialized production.

The invention discloses a white light LED for improving light spots and an encapsulation method thereof. In the white light LED for improving the light spots, a luminous wafer is fixed in a metal stacker; conducting wires are respectively arranged between the luminous wafer and a positive metal stacker and between the luminous wafer and a negative metal stacker; the luminous wafer is provided with a fluorescent adhesive layer; the outside of the fluorescent adhesive layer is provided with a whitening adhesive layer; and the metal stacker, the luminescent wafer, the fluorescent adhesive layer and the whitening adhesive layer are encapsulated in the white light LED by epoxide resin. In the white light LED for improving the light spots, a layer of whitening adhesive is coated on the surface of fluorescent adhesive, so that yellow hue and blue core in light beam emitted by the prior white light LED are effectively improved, and the problem of uneven light spots is solved.

The invention discloses a crystallizer internal surface electroplating production line, which includes a washing section, an electroplating section, a hoisting device and an electrolyte solution circulating fluid supply system. The electroplating section is provided with a crystallizer fixed base, a tubular crystallizer and an anode titanium basket. The crystallizer fixed base is provided with an electrolyte solution feed pipe, a sealing pad and an anode lead-out device. The anode titanium basket is arranged on the base, is mounted vertically and is equipped with an upper electrode lead-out terminal and a lower electrode lead-out terminal. The crystallizer is vertically arranged on the sealing pad of the base, and is sleeved outside the anode titanium basket. The upper side of the crystallizer is provided with a seal hanging basket and a sealing pad, the seal hanging basket is equipped with a drain pipe, the seal hanging basket is provided with a mechanical compression device, the seal hanging basket is in compressed sealing connection with the crystallizer upper end through the sealing pad. An electroplating cathode is in compressed electric connection with the crystallizer. The hoisting device is equipped with a crane and a workpiece fixture. And the washing section consists of a washing liquid cleaning tank, an acid liquid cleaning tank, a clear water cleaning tank, and a pure water cleaning tank.

The invention relates to a phosphor thin film used for a light emitting diode, which is prepared by blending and mixing evenly any adequate transparent adhesive solution or transparent plastic material and phosphor powder together according to appropriate proportion, and then making the adhesive solution into a thin film shape.

The invention relates to the field of microwave heating, and solves the technical problem of non-uniformity of microwave heating in the prior art. The microwave oven based on a phased array disclosedby the invention comprises a heating cavity body and microwave feed-in sources, wherein the microwave feed-in sources are uniformly distributed on an array antenna of a top layer of the heating cavitybody; the bottom part of the heating cavity body is divided into at least two sections of pressure sensors. The microwave oven also comprises a phase control module connected with the pressure sensors and the array antenna, and the pressure sensors are used for transmitting quality signals of heated matter to the phase control module. According to the microwave oven based on the phased array disclosed by the invention, the quality signal of the matter is transmitted back to the phase control module through the pressure sensors, more microwaves are radiated to the food of which the quality isheavier, and the space is heated in a controlled mode, so that the energy efficiency is improved, and the heating uniformity is improved. The invention also discloses intelligent microwave radiation which is carried out based on the quality of the heated matter and quality phase distribution, so that the problem that a microwave field is distributed in a standing wave form in the cavity body or the microwave field is fixed so as to result in non-uniformity in the prior art is solved.

A processing method of a glass eyeglass of a camera comprises the following steps: providing a glass jig comprising a first clamping plate and a second clamping plate, wherein the first clamping plate is provided with a groove, the second clamping plate is provided with a projection, and the projection can be accommodated in the groove; putting glass in the groove of the first clamping plate, coating one surface of the bottom of the glass far from the groove with an ultraviolet-curable adhesive, laminating the first clamping plate and the first clamping plate, and allowing the projection to be accommodated in the groove to make glass clamped between the projection and the bottom of the groove in order to obtain a glass clamped glass jig; irradiating the glass clamped glass jig with ultraviolet ray to make the glass adhered to the projection, and removing the first clamping plate; and cutting the glass adhered on the projection by using a computer numerical control machine tool, and taking the glass off the projection. The processing efficiency of the processing method of the glass eyeglass of the camera is high.

The invention belongs to the technical field of machine vision, and discloses a line structured light center line extraction method, which comprises the following steps of: cutting an image shot by acamera, extracting features, performing preprocessing and correcting a background; selecting a segmentation threshold value, and carrying out binarization processing on the corrected light bar image;carrying out Refinement processing by adopting a refinement algorithm, and carrying out closed operation on the image after refinement processing to obtain an image containing a single-pixel light barcenter line; Selecting m pixel points from the center line of the single-pixel light bar, converting the m pixel points into corresponding image coordinates, carrying out distortion correction on theimage coordinates, and carrying out fitting by utilizing the image coordinates subjected to distortion correction to obtain the center line of the line structured light. According to the method, theproblem of non-uniform image background can be solved, the background gray level is equalized, and the segmentation precision is improved, so that the structured light strip image with a certain pixelwidth is obtained, the extraction speed, the extraction precision and the accuracy of center line extraction are improved, and the real-time requirement of a visual detection system is met.

The invention relates to a liquid crystal display device which comprises an image input interface, a communication interface, a user input interface, a storage unit, a liquid crystal display device, a control circuit, a liquid crystal drive circuit, an LED drive circuit, a liquid crystal display unit and an LED backlight component. By utilizing the manner that every output control end of the LED drive unit is only connected with one LED, every LED is driven independently so as so solve the problem of parameter straggling of the LED.