53results about How to "Realize scanning" patented technology

The invention relates to the technical field of laser cutting control, in particular to a laser cutting control system and method for a lens assembly. The method comprises the following steps that a lens assembly is scanned in an omnibearing mode to obtain point cloud data, then abnormal points are removed, three-dimensional reconstruction is carried out, a lens assembly model is generated, cutting task data are obtained, a cutting target is recognized, optimal cutting space-time arrangement is carried out on the lens assembly model on the basis, and an optimized cutting blueprint is generated. Cutting path planning is conducted according to the optimal blueprint, candidate cutting paths are obtained and dynamically compensated, a compensation cutting path is formed, mapping of control parameters is conducted according to the compensation cutting path, change control parameters are obtained, then parameter replacement is conducted, and accurate intelligent laser cutting control is achieved. The laser cutting control method for the lens assembly is more accurate and more efficient.

The invention relates to the technical field of spatial positioning, and discloses a spatial positioning method based on multi-modal visual fusion. According to the method, mutual calibration among a laser radar, a short-focus camera and a long-focus camera is realized through a sensor joint calibration algorithm, a spliced image acquired by a bifocal lens of a # imgabs0 # angular color camera is processed, image data in an electric power operation scene shot by a joint calibrated camera system is read, the image is preprocessed, and the image data is acquired. Target detection is carried out on the preprocessed image through a deep learning method, identification and positioning of a target object are realized, a laser radar emits a laser beam to detect the target to obtain data, point cloud data are processed in combination with a visual program, and point cloud mapping, fitting reconstruction and position calculation are carried out on image information obtained by a # imgabs1 # angular color camera, so that the target object is identified and positioned. By means of the method, the precision of power operation complex scene space positioning is improved, and the position detection and recognition error is controlled to be 10 mm or below.

The invention discloses a laser positioning cutting machine for insulating silica gel sealing gasket machining, and belongs to the technical field of insulating silica gel sealing gasket machining. The laser positioning cutting machine comprises a workbench, and a fixing frame is fixedly installed at the top of the workbench; the cutting mechanism comprises a moving frame, a moving seat and a laser cutting head, the moving frame is installed on the outer side of the fixed frame in a sliding mode, the moving seat is installed at the bottom of the moving frame in a sliding mode, and an air cylinder is fixedly installed in the moving seat; and the clamping mechanism comprises a pressing frame, a screw rod, a driving plate and a pressing plate, a trapezoidal plate is fixedly installed at the top of the pressing frame, and a triangular plate is fixedly installed at the bottom of the driving plate. By means of the cutting mechanism and the clamping mechanism, automatic laser cutting of the sealing gasket can be achieved, the cutting precision is improved, burrs are avoided, meanwhile, the laser cutting parameters can be automatically adjusted according to the thickness of the sealing gasket under the cooperation of the linkage mechanism, efficient and complete cutting is guaranteed, and the cutting efficiency is improved.

The invention discloses a wafer position detection device and semiconductor equipment. A first annular sliding rail and a second annular sliding rail of the wafer position detection device are oppositely arranged on the upper side and the lower side of a semiconductor cavity. The transmitting end of the linear sensor is slidably connected with the first annular sliding rail, and the receiving end of the linear sensor is slidably connected with the second annular sliding rail. The orthographic projection of the linear sensor transmitting end on the wafer and the orthographic projection of the linear sensor receiving end on the wafer are partially overlapped with the wafer; the processor is used for controlling the driver to drive the linear sensor transmitting end and the linear sensor receiving end to slide synchronously; a linear sensor transmitting end is controlled to transmit a detection signal, and a linear sensor receiving end is controlled to receive the detection signal which is not shielded by the wafer; determining the circle center position of the wafer according to the detection signal received by the receiving end of the linear sensor; wherein the detection signal can penetrate through the semiconductor chamber. The problems that an existing process chamber is difficult to seal and needs a cooling system are solved.

The invention belongs to the technical field of ultrasonic positioning diagnosis, and discloses an ultrasonic phased array positioning diagnosis method for a dry-type bushing capacitor core with a microcrack defect, and the ultrasonic detection technology is a nondestructive detection method, and cannot damage a detected insulating material, so that the ultrasonic phased array positioning diagnosis method is suitable for long-term monitoring and preventive maintenance. As the ultrasonic wave has very high frequency and energy, the ultrasonic wave can penetrate through a thicker layer of the insulating material, so that tiny defects and changes can be found. The ultrasonic detection technology can find out the defects of aging, bubbles, impurities, cracks and the like in the insulating material, and can also be applied to other types of electrical equipment, such as cables, transformers and the like, so as to evaluate the insulating properties of the electrical equipment. And taking the discharge signal starting time measured by an electric detection method as a reference to obtain time delay data of all the sensors, and then carrying out next positioning calculation.

The invention relates to the technical field of data security, in particular to an interface data security monitoring method and device, a storage medium and electronic equipment, and the method comprises the steps: scanning a dynamic interface and a static interface in a data platform, and recognizing to obtain a target interaction interface; inputting the data transmitted in the target interaction interface into a sensitive data identification model to obtain sensitive data in the sensitive data identification model; and performing real-time anomaly analysis on the interface access behavior corresponding to the sensitive data, identifying an abnormal access behavior, and giving an alarm. According to the invention, through combination of an automatic tool and the hybrid neural network model, comprehensive monitoring of interface data and accurate identification of sensitive data are realized, the security of the data center is enhanced, and potential security threats are warned in time through real-time monitoring and anomaly detection.

This invention provides a full-foot 3D scanner, comprising a housing, a motion module, and a scanning module. The housing has two scanning areas arranged opposite each other in a first horizontal direction and a support area disposed between the two scanning areas, the support area being used to place the full foot. The motion module is disposed within the housing and includes a sliding part slidably disposed along a second horizontal direction. The scanning module includes a first frame, a second frame, lasers, and a camera. The first and second frames are respectively disposed corresponding to the two scanning areas. The first frame has at least two lasers spaced apart in the vertical direction, with the two lasers positioned on opposite sides of the support area in the vertical direction. The second frame also has at least two lasers spaced apart in the vertical direction, with the two lasers positioned on opposite sides of the support area in the vertical direction. The camera is disposed corresponding to the lasers, and both the lasers and the camera are oriented towards the support area. This solution provides a full-foot 3D scanner that balances motion accuracy, imaging quality, and structural compactness.

The invention discloses a laser radar and a cleaning device. The laser radar comprises a transmitting unit, a receiving unit and a deflection and reflection unit. The emission unit is used for generating emission light; the receiving unit is used for receiving reflected light; the deflection reflection unit is located on at least one of a transmitting path of the transmitting unit and a receiving path of the receiving unit, and the deflection reflection unit located on the transmitting path of the transmitting unit is used for guiding transmitted light to a target object; the deflection reflection unit located on a receiving path of the receiving unit is used for guiding reflected light reflected from a target object to the receiving unit; wherein the deflection reflection unit has a first state in which the emitted light is reflected in a first direction and a second state in which the emitted light is reflected in a second direction inclined to the first direction. According to the invention, the problems of complex internal structure and high manufacturing cost of the laser radar caused by an independently arranged light splitting element in the prior art can be solved.

The present invention relates to the technical field of concrete steel bar detection, and discloses a concrete steel bar detector for engineering quality management, comprising: a mobile platform, one end of a telescopic bracket is hinged on the top of the mobile platform, and a steel bar scanner and a display component are respectively embedded and installed on the front and rear sides of the mobile platform, a photoelectric detection unit is fixed above the display component, and an electric screw assembly is also installed at the rear edge of the mobile platform, and a fixed-point liquid sprayer is connected to the electric screw assembly; it also includes: an elastic liquid injection capsule, which is embedded and installed in the middle of the telescopic bracket, and a pipeline is connected between the elastic liquid injection capsule and the fixed-point liquid sprayer, and a gas pressurizing assembly is also fixed in the middle of the telescopic bracket, and one end of an air guide pipe is connected to the gas pressurizing assembly. It can scan and display the distribution of steel bars, and perform fixed-point and marking operations on the scanning and detection of steel bars, and at the same time isolate the adverse effects of dust on steel bar scanning and fixed-point, so as to improve the efficiency and accuracy of steel bar detection.

This case provides an electronic fence device detection system and method, an electronic fence system, and a management system, wherein the electronic fence device includes multiple Bluetooth beacons, and the electronic fence device detection system includes a beacon detection device, which is connected to the server of the beacon detection device in the form of information transmission, wherein the beacon detection device is used to obtain the Bluetooth information of the Bluetooth beacon and transmit it to the server; the server is used to analyze the Bluetooth information of the received Bluetooth beacon, and determine whether the Bluetooth beacon is abnormal based on the analysis result. Through the use of the electronic fence device detection system, the present invention can realize the scanning, analysis and reporting of the Bluetooth information broadcast outward by the Bluetooth beacon in the shielding body, and can well realize the maintenance and inspection of the Bluetooth beacon, the positioning of abnormal beacons, etc., thereby ensuring the stable operation of the Bluetooth electronic fence system and the user experience of shared bicycle users.

The utility model provides a wafer cassette internal pollution detection device, and relates to the wafer cassette detection device field, the wafer cassette internal pollution detection device comprises a pedestal, the upper end of the pedestal is connected with a side plate, the upper side of the pedestal is provided with a detection rack, the inner side of the side plate is slidingly connected with a detection assembly, the detection rack comprises a fixed rack, the inner side wall of the fixed rack is provided with a limiting strip, and the limiting strip is connected with the detection assembly. A groove plate is arranged on the upper side of the fixing frame, a measuring plate is slidably inserted into the upper end of the groove plate, a limiting plate is arranged at the top of the measuring plate, the detection assembly comprises a lifting plate, the outer end of the lifting plate is connected with a mounting plate, and a dust detector is mounted on the upper side of the mounting plate. And the outer end of the dust detector is connected with a detection probe through a wire. According to the utility model, pollution detection can be conveniently carried out on the surface of the slot on the inner side of the wafer box, and meanwhile, the appearance of the wafer box can be conveniently detected.

The invention discloses a medical instrument inventory real-time statistical method and device, and relates to the technical field of medical instrument inventory management.The medical instrument warehouse is divided into a plurality of storage areas according to physical areas, and the plurality of storage areas are managed in a partitioned mode; a regional inventory data preprocessing module in a storage region collects electronic tag data obtained by scanning of a plurality of planar linear track tag scanning devices in a regional range once every set time, and the inventory checking efficiency and accuracy are greatly improved; when the plane moving mechanism drives the wireless electronic tag scanner to move on the side face of the goods shelf, a plurality of wireless electronic tags of a plurality of medical instruments stored on the goods shelf are covered, and electronic tag scanning is automatically achieved. And the warehouse management computer summarizes the regional medical instrument inventory statistical data of the plurality of regional inventory data preprocessing modules to obtain the total inventory data of the medical instruments at the current inventory time, so that human resources are saved, and real-time statistics of the medical instruments is efficiently realized.

This invention relates to the technical field of concealed pipeline mapping, and in particular to an auxiliary device for rapid three-dimensional coordinate positioning of concealed pipelines in installation projects. The invention includes a mother drone equipped with a probe and camera mounted on it. A marking nozzle is connected to the mother drone, and the marking nozzle is connected to and installed on a daughter drone. The mother drone connects the marking nozzle and the daughter drone via a flexible hose and power cable. The device uses a mother drone integrating a probe and camera, enabling multi-angle, omnidirectional spatial scanning and image acquisition of concealed pipelines. This achieves rapid and accurate three-dimensional coordinate positioning of the concealed pipelines, significantly improving the accuracy and reliability of the positioning. The mother drone connects the marking nozzle and the daughter drone via a flexible hose and power cable, enabling remote synchronous control. The daughter drone can flexibly move to the pipeline positioning point and automatically complete on-site marking, avoiding errors associated with traditional manual line drawing and improving the accuracy and consistency of the marking.

The invention relates to a pipeline leak detection device, and relates to the technical field of pipeline detection. The device comprises a mounting block, a driving assembly and a plurality of detection assemblies, the driving assembly is arranged on the mounting block and used for driving the mounting block to move, the plurality of detection assemblies are arranged on the mounting block, the plurality of detection assemblies are radially distributed with the center of the mounting block as the circle center, each detection assembly comprises a connecting plate, a scanner and a plurality of connecting rods, and the connecting plates are arranged on the mounting block; the scanner is arranged on the connecting plate, one end of each connecting rod is arranged on the connecting plate, the scanner is located among the connecting rods, and the connecting rods are evenly distributed along the peripheral side of the scanner. The detection device can stably move in the pipeline, and the scanner is always aligned with the inner wall of the pipeline to carry out scanning detection.

The present invention relates to the combination of a rotating scanning ground-based SAR and a fast BP algorithm, and discloses a high-precision imaging scheme for a rotating scanning ground-based SAR based on a fast BP algorithm. In the scheme, the azimuth phase history function and the number of pulse cycles required for the movement across resolution units are first calculated based on the gridded elevation auxiliary data and stored in a data file in the form of a three-dimensional array; secondly, the echo signal sampling data of the monitoring area is recorded by arc rotating scanning, and for each modulation period, the data is subjected to spectrum analysis by FFT and the spectrum is shifted and sorted to obtain the spectrum; for each pixel point, coherent accumulation is performed in azimuth and the cross-resolution unit distance motion correction processing is performed, and finally an arc SAR image of the monitoring area is obtained. The fast BP algorithm in the present invention has a low amount of calculation and storage, and has good adaptability in the case of large-distance motion. Combined with the rotating scanning SAR, it can cover a large range of 360-degree surrounding scenes in one observation, and has high efficiency and wider application.

The present invention provides an upper gastrointestinal obstruction ultrasonic scanning system, which relates to the field of medical device technology, and solves the problem that the ultrasonic scanning of upper gastrointestinal obstruction in newborns is inefficient and requires more medical staff to perform operations. The upper gastrointestinal obstruction ultrasonic scanning system provided by the present invention includes a pumping mechanism, a driving arm mechanism and a detection arm mechanism; the pumping mechanism includes a first box body and a driving component, a liquid extraction component and a liquid injection component located in the first box body, the output end of the driving component can respectively drive the active end of the liquid extraction component and the active end of the liquid injection component to move, and the liquid inlet end of the liquid extraction component and the liquid outlet end of the liquid injection component are both connected to the stomach tube of the child; the detection arm mechanism includes a second box body and a probe arranged in the second box body, one end of the driving arm mechanism is connected to the first box body, and the other end is connected to the second box body, and the driving arm mechanism can drive the detection arm mechanism to move in a direction close to or away from the inspection area of ​​the child.

The present application discloses a data dump method and device, a storage medium and an electronic device. Relating to the field of data processing technology, the method comprises: if the current state of the target system meets the preset conditions for full data dump, scanning multiple first adaptive radix trees to obtain first data information; scanning multiple first associated containers to obtain second data information, the second data information at least includes second metadata information, and the second metadata information is a variable-length key-value pair; dumping the first data information and the second data information to the target storage medium. Through the present application, the problem that the layered storage technology based on LSM tree in the related technology stores the metadata information of the data block, and when dumping the data, the metadata information in each layer is searched from top to bottom in turn, resulting in a relatively low efficiency of data dump is solved.

The present invention discloses a timing control method and device for an ultrasonic phased array, and an ultrasonic device. The ultrasonic phased array includes multiple channels, and the timing control method for the ultrasonic phased array includes: obtaining an input signal and a clock signal, and processing the input signal according to the clock signal to form multiple delay signals; wherein the delay times of the multiple delay signals are different; obtaining a chip select signal, and selecting the delay signal output to the channel corresponding to the chip select signal according to the chip select signal; wherein the number of the chip select signals is the same as the number of the channels. The embodiment of the present invention can simplify the timing control method for the ultrasonic phased array and improve its operability on the basis of ensuring the delay accuracy.

The utility model relates to the technical field of workpiece production, and provides an automatic appearance detection device for rod workpieces, which comprises a workbench provided with a fixed seat, a feeding unit, a conveying unit, a first detection unit, a second detection unit and a sorting unit; wherein the fixed seat is used for supporting a workpiece, and the feeding unit is used for feeding the workpiece; the first detection unit is provided with a first visual detection piece, and the first visual detection piece moves in the axis direction of the workpiece to conduct visual detection on the surface of the workpiece; the second detection unit is provided with a second visual detection piece, a third visual detection piece and a rotating wheel, the rotating wheel drives the workpiece to rotate, the second visual detection piece conducts full-circumferential surface visual detection on the workpiece, and the third visual detection piece conducts visual detection on the two ends of the workpiece; the sorting unit is used for sorting the detected workpieces; through the arrangement, a complete automatic detection system is constructed; the labor cost is reduced, and the detection efficiency and the result consistency are greatly improved.

The invention relates to a movable high-energy industrial spiral CT system, belongs to the technical field of CT, and solves the problem that existing CT equipment is difficult to scan a fixed workpiece. The CT system comprises a scanning system and a displacement system, the displacement system can drive the scanning system to move; the scanning system comprises a scanning system shell, a scanning assembly, a driving assembly, a workpiece supporting structure and a feeding and discharging gate. The workpiece supporting structure is used for supporting and positioning a to-be-detected workpiece; the scanning assembly is used for emitting rays and scanning a to-be-detected workpiece; the driving assembly is used for driving the scanning assembly to rotate and linearly move relative to the workpiece to be detected; the feeding and discharging gate can be opened or closed, so that a to-be-detected workpiece can be placed in the workpiece supporting structure or taken out of the workpiece supporting structure. According to the invention, rotation and displacement of the scanning assembly are realized synchronously, a fixed part can be scanned in real time, and the limitation of a use site of a CT machine is overcome.

The invention relates to the technical field of concrete reinforcement detection, and discloses a concrete reinforcement detector for engineering quality management, which comprises a mobile table, one end of a telescopic bracket is hinged to the top of the mobile table, a reinforcement scanner and a display assembly are respectively embedded in the front and rear sides of the mobile table, and a photoelectric detection unit is fixed above the display assembly; an electric lead screw assembly is further installed on the edge of the rear side of the movable table and connected with a fixed-point liquid sprayer. The elastic liquid injection bag is installed in the middle of the telescopic support in an embedded mode, a pipeline is connected between the elastic liquid injection bag and the fixed-point liquid sprayer in a penetrating mode, meanwhile, a gas pressurization assembly is further fixed to the middle of the telescopic support, and one end of a gas guide pipe is connected to the gas pressurization assembly. The system can perform scanning detection and display of steel bar distribution, performs point fixing and marking operation on scanning detection of steel bars, isolates adverse effects of dust on steel bar scanning and point fixing, and improves the steel bar detection efficiency and accuracy.

The invention relates to the technical field of data processing, in particular to a data discovery and identification method, which comprises the following steps of: scanning and identifying a data source in a network environment through a hybrid algorithm based on machine learning and deep learning, and extracting key characteristics of the data source by adopting an automatic characteristic engineering technology; the method comprises the following steps: acquiring data sources, storing the data sources in a characteristic library, classifying the data sources into structured data, semi-structured data and unstructured data by utilizing an adaptive classification algorithm in combination with fuzzy logic and a Bayesian classifier, automatically marking the data sources, performing quality evaluation on the classified data sources, generating a priority list, and storing the priority list into a database; data extraction, data conversion and data loading are carried out on the data sources with high priorities, and it is ensured that the integrated data has high consistency and high reliability. According to the method, intelligent discovery, accurate classification, dynamic evaluation and efficient integration of data sources are realized through a systematic process, and the method is suitable for data management and business decision support in a big data environment.

The invention discloses a hydrology and water resource comprehensive monitoring device which comprises a bottom plate, a stand column is arranged above the bottom plate, the stand column is rotationally connected with a rotating strip, a positioner is arranged above the rotating strip, a sliding column is arranged below the rotating strip, a grabbing mechanism is arranged on the side, close to the sliding column, below the rotating strip, and a chuck is arranged on one side of the sliding column. The chuck is slidably connected with a sliding groove control column, a common vertical gear is arranged on the side, close to the chuck, of the side face of the sliding groove control column, and the common vertical gear is connected with the chuck in a meshed mode. Through the integrated high-precision scanner and the changeable detection block, the water quality can be monitored in real time, the standard exceeding situation can be found in time, the functions of setting the warning water level and conducting standard exceeding alarm reminding are achieved, and a timely and accurate decision basis is provided for hydrology and water resource management.

The utility model discloses a three-dimensional modeling image acquisition device, which relates to the technical field of three-dimensional acquisition and comprises an acquisition table, a carrying ring frame rotationally connected to the outer side of the upper end of the acquisition table, an arc-shaped top frame fixed to the upper end of the carrying ring frame, and an arc-shaped inner gear ring fixed to the center of the inner side of the arc-shaped top frame. Arc-shaped guide columns are fixed to the positions, located on the two sides of the arc-shaped inner gear ring, of the inner side of the arc-shaped top frame, a sliding base is slidably connected between the two arc-shaped guide columns, and an imager is arranged at the lower end of the sliding base. According to the three-dimensional modeling image acquisition device provided by the utility model, through the integral structure matching design, when the carrying ring frame is driven to rotate for a circle on the outer side of the acquisition table, and the sliding seat moves to the other end along one end of the arc-shaped top frame, the imager can comprehensively scan the periphery and the top of a model placed on the acquisition table, so that the three-dimensional modeling image acquisition device is realized. The problem that the top image of the model cannot be acquired or the angle is limited during acquisition is effectively solved, and multiple pauses in the scanning process are not needed.

The utility model discloses a kind of temperature measurement structure devices of probe positionable adjustment, belong to temperature measurement technical field.The utility model aims at solving the problem that existing technology is difficult to accurately position measurement inside cavity temperature field.Its technical scheme includes: the base suitable for being fixed in the cavity to be measured, base is equipped with axial sliding slot;Axial adjusting mechanism, including the first slider that can slide in axial sliding slot and the axial driving part of driving this first slider;Column is fixed on the first slider, at least one radial slide rail is opened in column;And at least one temperature measurement probe, the probe is installed on column by the second slider that can slide in radial slide rail and lock tightly.The utility model can be installed in the cavity to be measured as an independent temperature measurement module, by the cooperation of axial and radial adjusting mechanism, realize accurate fine adjustment positioning of temperature measurement probe in two-dimensional space, with the advantages of accurate positioning, flexible use.

The invention discloses an access door identification method, device and system based on radio frequency identification, and belongs to the technical field of radio frequency identification. The method comprises the following steps: controlling a radio frequency signal to scan along a channel direction of a channel gate; recording a scanning angle corresponding to a tag signal returned by the radio frequency tag based on the radio frequency signal; and identifying the moving direction of the article attached with the radio frequency tag according to the change of the scanning angle corresponding to the plurality of tag signals returned by the radio frequency tag. According to the method, key space positioning information is provided for identification by acquiring the scanning angle corresponding to the tag signal returned by the radio frequency tag attached to the article based on the radio frequency signal, the change of the scanning angle corresponding to the plurality of tag signals is analyzed, the moving direction of the article can be accurately identified, the signal intensity change of the tag signal is combined, and the identification accuracy is improved. According to the invention, the warehouse-in and warehouse-out result of the article can be determined from a plurality of different dimensions, the situation of easy misjudgment caused by a single judgment factor is reduced, and the accuracy of article warehouse-in and warehouse-out identification is improved.

The invention belongs to the technical field of sorting and bag supplying, and discloses a bag supplying robot, a bag supplying system and a bag supplying method.The bag supplying robot comprises a robot body with the lower end provided with a material grabbing mechanism, and a material weighing module is installed on the material grabbing mechanism; the material grabbing mechanism is further provided with a scanning module. And the bag supply system comprises a controller and a visual module, and the controller is electrically connected with the visual module, the robot body, the weighing module and the scanning module. The package supply method comprises the following steps that the visual module identifies product information and pushes the product information to the controller; the controller controls the robot to grab the materials, meanwhile, the weighing module pushes weighing information to the controller, and the scanning module pushes the material information to the controller; and the controller controls the robot to grab the materials to the corresponding sorting line. According to the invention, automatic weighing and scanning of the materials can be realized while the robot grabs the materials, a full-automatic bag supply mode is realized, and the bag supply efficiency is improved.

The invention discloses a display panel and a preparation method thereof and a display device, the display panel comprises a substrate, a plurality of first scanning lines, an isolation structure and a plurality of light-emitting function units, the plurality of first scanning lines are located at one side of the substrate, and the plurality of first scanning lines are arranged along a first direction; the isolation structure is formed on one side of the substrate, an opening part is defined by the isolation structure, the isolation structure comprises a first isolation part, the first isolation part comprises a side face facing one side of the opening part, the side face comprises a first surface, the plane where the first surface is located intersects with the plane where the substrate is located to form a first intersecting line, and a first preset angle is formed between the first intersecting line and the first direction; the light-emitting function units are arranged on the substrate and correspond to the opening parts, and each light-emitting function unit comprises a first electrode, a light-emitting function layer and a second electrode; wherein the second electrode is in contact with the isolation structure, and the first preset angle is larger than or equal to 0 degree and smaller than 45 degrees. According to the display panel provided by the invention, the display quality of the display panel can be improved.

The invention provides a low-profile-based fully-polarized wide-angular-domain near-far field wave beam two-dimensional adjustable holographic metasurface and a regulation and control method, the metasurface comprises a top metal plate, the top metal plate is provided with a T-shaped coupling structure array, the T-shaped coupling structure array comprises a plurality of novel coupling units, and the novel coupling units are arranged on the top metal plate. And radio frequency switches are arranged in the vertical direction and the horizontal direction of each novel coupling unit and are used for controlling coupling radiation. The FPGA control circuit and the direct feed network are arranged on the lower layer of the second dielectric substrate, and the direct feed network applies different direct current bias voltages to the center of each novel coupling unit so as to control the on or off of the radio frequency switch. The invention has the advantages of simple structure and low cost, can easily realize the multi-polarization wave beam at any direction of a far / near field, realizes the scanning of the wave beam at a pitch angle and an azimuth angle, and can achieve the scanning of a far-field pen-shaped wave beam at a large angle of + / -70 degrees and the scanning of a near-field Bessel wave beam at a large angle of + / -60 degrees.

The present invention discloses an automatic detection device for the plastic liner of a gas cylinder, a three-dimensional reconstruction algorithm and an analysis method. The present invention realizes a full-circle scanning of the plastic liner by arranging a first phased array probe and a second phased array probe to respectively collect ultrasonic monitoring information data of the plastic liner cylinder and the head end; by designing a three-dimensional reconstruction algorithm, combining the position data of a rotation angle acquisition mechanism and an axial position acquisition mechanism, the data are correlated and reconstructed into the three-dimensional data of the entire plastic liner; by using an analysis method, the outer diameter, cylinder length, roundness, straightness, wall thickness, internal defects and other information of the plastic liner are analyzed and evaluated, the scanning process is fully automatic, the degree of automation is high, the precision is high, the labor intensity is low, and the detection of the plastic liner is convenient.