484results about How to "Realize scanning" patented technology

The invention embodiment provides a shift register unit, a grid electrode drive circuit and a driving method thereof, and an array substrate, and relates to the display technical field, thus solving the problems that a high resolution display panel cannot satisfy ultra-narrow frame or non-frame design requirements. The shift register unit comprises a first input module connected with a first voltage end and a first signal input end; a first reset module connected with a second voltage end and a first reset signal end; a pull-up module connected with a first clock signal end, a first output module, a second output module and a third signal output end; a pull-down control module connected with a second clock signal end and a third voltage end; a pull-down module connected with a third voltage end and the pull-up module; a first output module connected with the pull-up module, a third clock signal end and a first signal output end; a second output module connected with the pull-up module, a fourth clock signal end, and a second signal output end. The shift register unit is applied to display manufacture.

The invention discloses a spatially-separated pump-probe transient absorption spectrograph and a realization method. The realization method is characterized by generating a light source through a femtosecond light source system; realizing the beam splitting of pump light and probe light through a beam splitter; realizing the different time delay of the probe light through a time delay line; realizing the two-dimensional rotation and the calibration of the probe light within a horizontal plane and a vertical plane through a sweep reflector group; calibrating which means guaranteeing the incidence of the rotated probe light into a aperture within the front section of an objective lens; finally, obtaining a two-dimensional image formed on a sample under the combined action of the probe light and the pump light by a data collection system. According to the spatially-separated pump-probe transient absorption spectrograph and the realization method, the extremely high spatial discrimination can be realized, and moreover, the visual probe of carriers, excitors or plasmons can be realized.

The invention discloses an ultrasonic inspecting and scanning device of a welding line, comprising a main frame, an idler wheel mechanism and a scanning mechanism, wherein the idler wheel mechanism is connected with the main frame, the scanning mechanism is arranged on the main frame and comprises a slanting scanning mechanism, and the slanting scanning mechanism is provided with a slanting scanning arm which is configured aslant relatively to a welding line to be inspected. The main frame is rectangular, and four edges of the main frame are all provided with guide rails; the slanting scanning mechanism comprises two slanting scanning brackets, a slanting guide rail and two slanting scanning arms, wherein the slanting guide rail is connected between two slanting scanning brackets, and the slanting scanning arms are arranged on the slanting guide rails; one slanting scanning bracket is straddled on two guide rails of two adjacent edges of the main frame, and the other slanting scanning bracket is straddled on two guide rails of other two adjacent edges. The ultrasonic inspecting and scanning device of a welding line, which is provided by the invention, can effectively solve the problem of missed detection of horizontal defects, enlarge defect detection range, realize overall scanning of the welding line and reduce potential safety hazard.

The invention discloses a phased-array ultrasonic detection method for interfacial de-bonding of a composite material. The method comprises the following steps: (1) sequentially triggering each wafer of a phased-array probe to generate ultrasonic signals, superposing the ultrasonic signals, propagating the ultrasonic signals inside the composite material, and reflecting the ultrasonic signals during the interface de-bonding or interfacial de-bonding of the composite material; (2) superposing the reflected ultrasonic signals, receiving the ultrasonic signals by using the phased-array probe, performing data processing, and then outputting a phased-array scanning image through a phased-array display instrument; (3) comparing an ultrasonic detection image during the good interfacial bonding of the composite material with an ultrasonic detection image during the interfacial de-bonding of the composite material to judge whether the composite material has a de-bonding defect. The method has the advantages of high detection accuracy, simple operation process and the like.

The invention provides a microscopy CT imaging device with three-free degree motion control and a correcting method thereof. The microscopy CT imaging device comprises an X-ray source (1) and an X-ray source detector (2), wherein a material-carrying table (3) is arranged between the X-ray source (1) and the X-ray source detector (2). The device is characterized in that the material-carrying table is externally provided with a driving device for driving the material-carrying table to move along the horizontal direction, the vertical direction and the rotation direction. The device solves the problems of serious shake, large error and low precision when the common microscopy CT mechanical device moves; leads the three-free degree direction motion to be more stable, the speed to be more even, and the precision degree to be higher; has better radiation shield effect; solves the problem of the heat dissipation of the X-ray source and the X-ray source detector; solves the problem that the X-ray source, the X-ray source detector and a material-rotating center are positioned at one line; and lays good foundations for the subsequent image acquisition and image reconstruction.

The invention discloses a low-altitude target detecting system of a three-coordinate continuous wave one-dimensional phase sweeping unmanned aerial vehicle, and is aimed at providing a detecting device high in data detecting rate and anti-interference capacity. By means of the technical scheme, the system measures a target distance through a frequency modulation continuous wave ranging system, anantenna feedback subsystem converts radio frequency signals into electromagnetic wave signals to be radiated to the space, a receiving subsystem conducts amplifying, frequency varying and SFC controlprocessing on echo signals output by an emission and wave control subsystem, a signal processing subsystem generates the working time sequence of the whole system, measures the three-coordinate vectors of the distance, direction and pitching of a target position and calculates frequency modulation continuous wave ranging data of target signals, and a data processing and communication control subsystem parses the target angle, establishes the trajectory of target movement, controls the working mode of a radar and detects three-coordinate target information according to the target signals calculated by the signal processing subsystem and the antenna angle information output by the antenna control subsystem.

The invention provides an on-line detection system and an on-line detection method for pipes or bars ultrasonic phased array. The method comprises the following steps of: arranging a plurality of concave surface phased array energy converter probes on planes which are perpendicular to the center lines of the pipes or bars and at the position which forms a certain included angle with the center lines of the pipes or bars at the peripheries of the pipes or the bars; generating an electronic control sound field focused by the phased arrays by utilizing the concave surface phased array energy converter probes; and switching continuously and quickly by utilizing a high-voltage switch array, a multi-channel phased array transmit-receive system and a control system through a high-voltage switch array circuit, and controlling different array elements of the concave surface phased array energy converter to transmit and receive at different moments, so that phased array focusing acoustic beams rotate in the pipes or bars at high speed to realize dynamic focusing and scanning. By the system and the method, the 360-degree full-coverage scanning of the pipes or bars can be realized under the condition that the concave surface phased array energy converter probes are not moved, longitudinal and traverse defects can be scanned and detected, and the detection speed is improved greatly while the detection accuracy is improved.

The invention discloses a laser barcode reading device and a barcode reading method. The reading device comprises a blue light laser, a deflecting mirror, a swingable reflecting mirror, an optical collector, a light filter, a photoelectric receiver, an amplification processing circuit, a processor connected with the amplification processing circuit and controlling the blue light laser, and a power module. The reading method comprises the following steps of: receiving scanning optical signals; performing analog digital conversion and acquisition of the scanning optical signals; performing fast Fourier transform; removing high-frequency component; performing fourier inversion; calculating a threshold by using an Otsu method; performing binaryzation on barcode signals according to the threshold; and decoding according to various barcode standards. The laser barcode reading device has the advantages of reasonable design, simple and convenient operation, low input cost and good using effect and adopts the brand-new blue laser scanning source to scan one-dimensional barcodes; and the invention also provides a barcode reading method with high recognition performance, strong resolution and high recognition precision so as to simplify an electronic hardware part of the barcode reading device.

The invention discloses an automatic measuring system for insulating material surface charge two-dimensional distribution. The automatic measuring system comprises a sealed cavity which is internally provided with a two-dimensional electronic control displacement platform. A product to be measured is fixed to the two-dimensional electronic control displacement platform through a vertical backboard electrode, and the upper end and the lower end of the product to be measured are connected with a high-voltage electrode and a grounding electrode respectively. The movement end of a one-dimensional magnetic coupling linearly-rotating driver is provided with an insulating clamp. A Kelvin probe is fixed to the insulating clamp, the probe point of the Kelvin probe is perpendicular to the product to be measured, an output signal lead of the Kelvin probe is connected with an electrostatic potentiometer outside the sealed cavity, the signal output end of the electrostatic potentiometer is connected with a data collecting system of a computer, the other side of the sealed cavity is provided with a connecting pipe, and the tail end of the connecting pipe is provided with a vacuum pump. The insulating material surface charge two-dimensional distribution automatic measuring system is used for measuring surface charge density two-dimensional distribution of an insulating material, and the flashover characteristic study content and the charge distribution measuring means of the insulating material are enriched.

The invention belongs to the technical field of antenna engineering, and discloses a strong mutual-coupling ultra-wideband wide-angle scanning dual-polarized conformal phased-array antenna. The strong mutual-coupling ultra-wideband wide-angle scanning dual-polarized conformal phased-array antenna comprises a conformal dielectric substrate, conformal dipole units, a circular metal patch, a conformal dielectric layer, a conformal dielectric impedance matching layer, a metal ground matching layer, an unbalance feeding structure, five grounding metallized through holes, a microwave coaxial cable and a metallized frustum-shaped carrier, wherein the conformal dipole units are printed on an upper layer of the conformal dielectric substrate, and placed in a vertical intersection way; the circular metal patch is printed on a lower layer of the conformal dielectric substrate; the conformal dielectric layer is positioned below the conformal dielectric substrate, and subjected to hole digging treatment; the conformal dielectric impedance matching layer is positioned above the conformal dielectric substrate; and the microwave coaxial cable is used for feeding the unbalance feeding structure. The weight of the novel antenna is only 70 percent that of a conventional phased array, so that the requirement on the load carrying of a carrier is lowered greatly. The metal ground matching layer is used, so that an original complex matching circuit is omitted; the machining difficulty is lowered greatly; and the machining cost of the antenna on engineering applications is lowered.

The invention discloses a method and a system for accurately counting goods based on an unmanned aerial vehicle (UAV) in a large warehouse. (2) path planning; (3) Automatic patrol; (4) image data transmission; (5) image processing; (6) statistics of goods information; (7) Inventory comparison; The invention uses the unmanned aerial vehicle to carry out automatic patrol in the warehouse, statisticsthe goods stock and carries out the comparison and inventory of the stock information. This method not only has a high degree of automation, but also has a precision of centimeters, which realizes the accurate inventory of goods in large warehouse, lightens the burden of manpower in the process of inventory and improves the productivity of enterprises.

An MOEMS laser scanning micromirror array speckle suppressing device relates to beam control optical fiber speckle elimination technology, which solves the technical problems of the existing laser speckle suppressing device with large volume and structure, high power consumption, complex structure and cumbersome operation process. The present invention is composed of M×N scanning micromirrors, and a single scanning micromirror consists of a fixed anchor point rotating along the X axis, a fixed anchor point rotating along the Y axis, a torsion beam rotating along the X axis, and a torsion beam rotating along the Y axis Composed of reflective mirrors; under the drive of electromagnetic force or electrostatic force, etc., synchronously control all scanning micromirrors to realize scanning in X and Y directions; or independently control a single scanning micromirror to realize scanning in X and Y directions; the reflection The mirror surface is a circular mirror surface, a square mirror surface, an arc mirror surface or other irregular shapes. The laser speckle suppression device of the present invention has the advantages of small size, low power consumption, simple structure, easy integration and convenient operation under the premise of achieving the same speckle suppression effect.

The invention discloses a combined endoscope imaging system based on an OCT (Optical Coherence Tomography) and an imaging method. The combined endoscope imaging system comprises an endoscope imaging device which is controlled by a computation control unit and is provided with an OCT imaging system and a photoelectric imaging or image guide optical fiber imaging system; the endoscope imaging device comprises a reference arm and an endoscope with a sample arm; the endoscope is internally provided with a plurality of channels; and each channel is internally provided with an OCT imaging probe, a photoelectric imaging probe or an image guide optical fiber bundle and a light guide fiber bundle. OCT imaging and photoelectric imaging or image guide optical fiber bundle imaging are combined to realize real video images on the surface and the periphery of a tissue of an observed position in real time and obtain a two-dimensional tomography image under a certain depth of the skin of the tissue at the position. A visible light source 2 also can be added to be coupled into the OCT imaging system so that an OCT imaging probe scanning light bundle is accurately positioned to a target region and the accurate positioning and scanning of a pathological change region of the tissue of a sample can be realized.

The invention discloses oral cavity comprehensive detecting method and apparatus based on a flexible phase controlled ultrasonic array. The apparatus comprises a display module, a phase controlled ultrasonic transmitting module and a phase controlled ultrasonic receiving module connected with a control module, respectively. The phase controlled ultrasonic transmitting module and the receiving module are further connected with a flexible phased array ultrasonic transducer array. The method comprises the following steps of: performing ultrasonic scanning to detect teeth facing outwards skin in periphery of the oral cavity on the face or in all directions of other soft tissues of the oral cavity through the flexible phased array ultrasonic transducer array; transmitting ultrasonic waves with set frequency to detection points through the phased array focused ultrasound when detecting the teeth so as to detect the amplitude of the reflected wave and detect whether defect waves exist in the reflected wave; and transmitting ultrasounds with different frequencies to the detection points through the phased array focused ultrasound and detecting the attenuation of the transmitted wave with different frequencies at the other end when detecting the soft tissues of the oral cavity so as to obtain broadband ultrasonic attenuation parameters. Therefore, health states of the soft tissues of oral cavity can be obtained rapidly.

The invention discloses a reflective microring resonator. The reflective microring resonator comprises an upper download type microring resonator, wherein the upper download type microring resonator comprises a microring and a channel waveguide coupled with the microring, a download end of the upper download type microring resonator is provided with a light reflection structure, and the reflectivemicroring resonator further comprises a coupling control module used for controlling the coupling amount of the microring and the channel waveguide to make a group delay state of resonant light in two directions in the reflective microring resonator satisfy the fast and slow light cancellation condition. The invention further discloses a multi-wavelength light delayer, a photon beam-forming method and a photon beam-forming chip. The reflective microring resonator is advantaged in that true wideband light delay can be achieved, and the delay amount can be flexibly adjusted.

The invention discloses a deformation luneberg lens based on novel metamaterials. The lens is formed by the way that fifteen layers of round dielectric sheets are arrayed in the radial direction in an equally-spaced mode, and I-shaped metal structure units are periodically distributed on each layer; the sizes of I-shaped structures which are attached to the sheets far away from the center of the lens are smaller and smaller, and the equivalent dielectric constants are smaller; the equivalent dielectric constant of the outermost layer is one approximately, the equivalent magnetic conductivity is also one approximately, and thus the air layer attaching purpose is achieved. Compared with a traditional luneberg lens, the deformation luneberg lens is changed in that the position of a feed source is varied, and a round rail is arranged in the deformation luneberg lens to allow the feed source to move. A cylindrical wave generated by the feed source is emergent in the mode of a plane wave under the action of the lens, the emergent direction of the plane wave is changed along with the movement of the feed source on the rail, and thus wide-angle scanning of beams is achieved. The deformation luneberg lens based on novel metamaterials is simple in design and manufacture and capable of converting the cylindrical wave into the plane wave, thereby having a wide application prospect in the fields of radar, antennas and the like.

The invention discloses a large-stroke high-scanning frequency optical fiber delay line. The large-stroke high-scanning frequency optical fiber delay line comprises a mobile reflecting module and a fixed reflecting module which are mutually and oppositely arranged; the mobile reflecting module is connected with a drive motor through a connecting piece; the drive motor is connected to a computer through a driver, and motion control is performed by using upper computer software; each of the mobile reflecting module and the fixed reflecting module comprises a plurality of uniformly-arranged hollow aluminum pyramid reflecting mirrors, and the quantity of the hollow aluminum pyramid reflecting mirrors on the fixed reflecting module is one more than that of the hollow aluminum pyramid reflecting mirrors on the mobile reflecting module. According to the large-stroke high-scanning frequency optical fiber delay line disclosed by the invention, by utilizing the reverse reflection characteristic of the pyramid reflecting mirrors, reflected light can be strictly parallel to incident light, so that the effect of shaking on optical fiber coupling in the scanning process is reduced, and the system insertion loss is reduced; as the N pyramid reflecting mirrors and the N-1 pyramid reflecting mirrors are oppositely arranged, multiple reflections are formed in the two reflecting modules to realize optical path delay; in comparison with single pyramid reflecting mirrors, the delay scope can be improved by N times under the situation that the motor stroke is unchanged.

The invention discloses a making method and printing method of temperature-sensitive CTP plate to adapt aluminum plate as base plate, which comprises the following steps: surface disposal, three-phase electrolytic roughening treatment, ash disposal, depolarizing disposal, base plate oxidizing disposal, base plate hole-packing disposal, hydrophilic layer coating, photosensitive layer coating, drying, shearing and packing. The method reaches the ink-and-wash balance of print plate as soon as possible and overcomes dirty phenomenon, which guarantees the high quality and long print time.

The embodiment of the invention discloses a method and device for carrying out analysis on sensitive images, relates to the technical field of image identification, and can promote an automation levelof carrying out identification detection on advertising images and reduce manual review cost. The method comprises the steps of: carrying out clustering on sample images in a training sample set; then according to the clustered sample images, by a convolutional neural network, training an identification model corresponding to each category; and then by utilizing the identification model obtainedby training, identifying sensitive images corresponding to each category from a to-be-detected image library. The method and device disclosed by the invention are applicable to identification on the sensitive images on an online platform.

The invention discloses an obstacle-detecting obstacle-avoiding system and method suitable for a full automatic weeding machine. The system comprises an MCU module, the MCU module is connected with anultrasonic transducer, used for transmission, of an ultrasonic phased array through a transmitting circuit, and the ultrasonic transducer used for the transmission is located at the top of the weeding machine; the MCU module controls the transmitting circuit to drive the ultrasonic transducer to transmit ultrasonic signals, the ultrasonic signals are reflected back through an obstacle ahead, thetransmitting signals are received by a plurality of ultrasonic transducers used for receiving, and the plurality of ultrasonic transducers used for receiving are used to form an ultrasonic phased array receiving array; the ultrasonic phased array receiving array is connected with the MCU processing module sequentially through a signal amplification conditioning module, a detection low-pass filterand an A/D conversion module; and the MCU processing module is connected with an upper computer. The system and method provided by the invention use the pattern recognition technology and the ultrasonic phased array technology to recognize and judge the obstacle ahead, thereby realizing intelligent full automatic operation of a robot and the full automatic weeding machine.

The invention discloses a multi-beam selection smart antenna array and a system having the antenna array. The antenna array comprises a substrate, and a plurality of antenna array elements fixed on the substrate; the substrate is circular, and the centers of all antenna array elements around the substrate are uniformly distributed on a round outer periphery of one side of the substrate to form an annular array; the substrate is configured with a plurality of arc-shaped sags and a plurality of slits from the round end face of the substrate towards the center, and one arc-shaped sag is arranged between two adjacent antenna array elements, and an antenna isolation belt is formed thereby; each antenna array element comprises two antenna elements, and one slit is arranged between two antenna elements to form an antenna coupling slit thereby; and antenna feed points of the antenna array elements are located between two antenna elements. The structure provided by the invention can realize omnidirectional spatial scan. The invention further discloses a multi-beam selection smart antenna communication system adopting the antenna array.

The invention discloses an intelligent pen system. The system comprises an intelligent pen, a track record module, a data transmission module, a receiver and an OCR identification module, wherein a writing pen core is arranged in the intelligent pen and is used for writing characters; the track record module is used for recording a track of writing in real time during writing and generating a track file; the data transmission module is used for transmitting a character scanning file to the receiver; the receiver carries out data connection with a server and the server reads a cache page in the receiver; the OCR identification module is arranged in the server and is used for converting the cache page into a text file. The invention simultaneously discloses an intelligent pen system operation method. By using the system and the method of the invention, real-time records of classroom notes of a student and character writing can be realized and the records can be uploaded to the server so that recording and uploading efficiency of character information is greatly increased.