133 results about "Dynamic Scan" patented technology

The invention belongs to the technical field of machine vision and precision measurement, and particularly discloses a non-contact part arc parameter high-precision measurement method and system, and the method comprises the following steps: S1, constructing a three-dimensional measurement mobile platform; s2, establishing a dynamic scanning reference; s3, performing spatial pose optimization based on the three-dimensional morphology characteristic parameters of the part, and driving a moving guide rail to dynamically scan the surface of the part to obtain a three-dimensional point cloud image of the part; s4, cutting and screening the point cloud image to obtain an arc region point cloud image; s5, preprocessing the point cloud image of the arc region; s6, carrying out dimension reduction processing; s7, outputting a circle center position vector and a radius calibration value to determine a corresponding circle center coordinate and a radius parameter; s8, constructing a radial deviation evaluation function; and S9, judging that the measured part meets the standard. The non-contact part arc parameter high-precision measurement method and the non-contact part arc parameter high-precision measurement system have the advantages of high precision, high efficiency, automation and the like, and are suitable for arc parameter detection of complex curved surface parts.

The invention relates to the technical field of metal structure detection, in particular to an intelligent special-shaped aluminum plate structure parameter detection method and system based on spectral analysis, and solves the problems of multi-parameter splitting, poor complex structure adaptability and inaccurate risk assessment in traditional detection. According to the method, data are synchronously collected through multi-spectral imaging and line laser scanning, surface component parameters such as the thickness gradient of an oxide film are inverted, the local curvature is calculated based on three-dimensional point cloud, a spiral encryption or grid sparse scanning track is dynamically switched, differential detection of a complex structure and a plane area is achieved, and the detection precision is improved. And then a space correlation model of the oxidation film thickness and the hole deformation quantity is constructed, a structure failure risk area is accurately recognized by combining a three-level risk judgment rule and cross-regional influence analysis, and the system effectively improves the accuracy and detection efficiency of defect recognition of the special-shaped aluminum plate through cooperation of dynamic scanning control, component deformation correlation and a composite structure decision unit.

The invention relates to the technical field of power equipment state monitoring, in particular to an online monitoring method for partial discharge of a high-voltage switch cabinet, and aims to solve the problem of insufficient early warning accuracy due to the fact that most life prediction methods in the prior art are based on a single physical quantity and cannot fully consider the synergistic effect of multi-modal signals. The multi-source signal collaborative analysis is realized through the space-time fusion signal processing and transfer learning model, the dynamic scanning strategy and the multi-scale degradation evaluation are combined, the problems of poor real-time performance and incomplete coverage of the traditional monitoring method are effectively solved, and the method has the advantages of improving the monitoring precision, shortening the model training period and realizing dynamic early warning. The multi-scale signal processing can capture high-frequency discharge details and low-frequency degradation trend at the same time, the dynamic threshold setting enhances the adaptability of signals with different intensities, and the weighted fusion strategy effectively integrates multi-dimensional features, so that the state change of equipment is comprehensively reflected, and a reliable basis is provided for early fault early warning.

The invention relates to the technical field of tower crane control, and provides an aerial high-risk area identification and hoisting path reconstruction method and system. The method comprises the following steps of: respectively mounting two rotary radars on a rotatable bracket of the tower crane to form a radar sensing module comprising a double-radar module; dynamically scanning the potential risk area in the construction scene through a radar sensing module to obtain real-time position information of the potential risk area; receiving the real-time position information through a processing module, and converting the real-time position information into real-time three-dimensional coordinate data in a motion coordinate system of the hoisting equipment by adopting a three-dimensional coordinate conversion algorithm; constructing a three-dimensional model of the potential risk area based on the real-time three-dimensional coordinate data; and identifying the three-dimensional model to determine a high-risk area, adopting an improved fast exploration random tree algorithm as a path obstacle avoidance algorithm, combining the three-dimensional model to dynamically reconstruct an initial hoisting path set by a user, and generating an optimal risk-avoiding hoisting track avoiding the high-risk area.

The invention discloses an anti-shielding three-dimensional scanning measurement field construction method for large-size measurement, and belongs to the technical field of optical three-dimensional measurement. The method comprises the following steps: firstly, performing adaptive sampling based on geometric features of a workpiece to generate a candidate mark point set; secondly, constructing a virtual measurement scene, simulating a dynamic scanning process by using a ray tracing technology, and calculating the visibility and observation quality of each point under multiple viewpoints; then measuring precision is quantified by using a Fisher information matrix, and a layout optimization model which takes maximization of information gain as a target and meets coverage rate and engineering constraint at the same time is established; and finally, solving the model to obtain an optimal mark point subset, and verifying and outputting the optimal mark point subset. According to the method, the problems of measurement interruption, low point distribution efficiency and difficulty in guaranteeing precision caused by shielding of a large-size complex component in scanning are solved, and automatic construction of a high-robustness and high-precision measurement field is realized.

The invention discloses a large-size complex surface type high-speed scanning measurement device based on a white light interference technology and a method thereof, and relates to the technical field of crossing of optical precision measurement and machine vision, and the device comprises an intelligent measurement module which integrates a large-view-field vision camera, a 3D camera and a white light interferometer, the large-view-field vision camera is used for acquiring a global two-dimensional image of a measured object and automatically identifying features to trigger a measurement program, and the 3D camera is used for acquiring three-dimensional point cloud data of the measured object; according to the invention, the intelligent measurement module integrates multiple devices, a large-view-field camera triggering program, point cloud acquisition by the 3D camera and high-precision measurement by the white light interferometer, so that multi-source data collaboration is realized. The dynamic scanning optimization module adjusts step lengths and grid priorities according to curvature regions, improves an algorithm to generate a path, improves scanning efficiency and pertinence, achieves combination of global and local measurement through cooperation of multiple devices, meets the multi-precision requirements of complex surface types, improves measurement efficiency, and guarantees the precision of key regions.

The invention discloses a laser measurement system suitable for a large complex curved surface and a measurement method thereof.The measurement system comprises a control module, a positioning module, a pre-scanning module and a high-precision scanning module, and the control module comprises a high-precision scanning planning unit and a scanning analysis unit; the high-precision scanning module comprises a three-dimensional scanning platform, a universal mechanical arm and a distance measuring laser; the measurement method comprises the steps of pre-scanning to generate an initial model, scanning path planning and scanning attitude control, high-precision scanning to collect point cloud data, preprocessing and marking of the high-precision scanning point cloud data, local optimization and supplementary scanning strategy generation and high-precision scanning model generation. According to the measurement system and method, the dynamic scanning path of the high-precision scanning module is intelligently planned based on the pre-scanning result, the pre-scanning and high-precision scanning strategies are combined, high-density coverage and uniform sampling of the large complex curved surface are achieved, measurement is accurate, the anti-interference capacity is high, and the model scanning precision is high; a dynamic supplementary scanning mechanism is automatically marked and triggered in the scanning process, and the quality of scanned data is ensured.

The invention discloses an online visual detection method for appearance defects of a compressor wiring structure, and relates to the technical field of machine visual detection and intelligent manufacturing, and the method comprises the following steps: before a robot enters a supplementary shooting area, scanning a compressor shell through low-angle light, extracting a continuous reflection streamline formed on a metal surface, marking a reflection strong point, and carrying out the detection of the appearance defects of the compressor wiring structure; and a reflective track band is generated as a path reference for image acquisition. Through operations such as dynamic scanning, reflection-avoiding modeling and circular scanning linkage, a closed-loop control strategy is constructed, metal reflection is actively recognized and avoided, character definition and recognition stability are improved, compressor batch tracing completeness is ensured, the recognition failure rate and the manual recheck rate are remarkably reduced on the premise of not influencing the rhythm, and the compressor batch tracing efficiency is improved. And the detection automation and quality control capability is improved.

The invention discloses a real-time monitoring method and system for the breakage rate and flow conductivity of a propping agent based on CT scanning. The real-time monitoring method comprises the steps that a CT scanner is externally connected to a quartz glass observation window of a flow guide chamber through a mechanical arm; performing initial scanning on the propping agent in the flow guide chamber through a CT scanner to obtain initial particle volume distribution and determine an initial volume and a minimum volume threshold value; setting the temperature and overburden pressure of the flow guide chamber, and injecting fluid through a constant-speed constant-pressure pump; cT dynamic scanning is triggered at a fixed time interval, and the real-time breakage rate is calculated; when the real-time breakage rate is larger than 5%, the pressure difference, the flow and the crack width are obtained; calculating the flow conductivity by combining the fluid viscosity and the length of the flow guide chamber; when the real-time breakage rate is smaller than or equal to 5%, returning to scan again; and when the pressure difference is greater than 5MPa, the experiment is automatically stopped. According to the invention, the three-dimensional image data in the experiment process can be rapidly obtained and processed and analyzed in real time, so that the measurement time is remarkably shortened, and the measurement efficiency is improved.

The invention relates to an animal epidemic disease monitoring data statistical analysis system and method. The method comprises the following steps: a multi-source data fusion module performs standardized fusion processing based on input case data, environment data and population data to obtain a spatio-temporal joint data matrix; a risk probability prediction module performs area scanning shape prediction on geographic feature data and population distribution data in the matrix, outputs a dynamic scanning area set, and performs environment and small sample correction to obtain risk probability distribution; and the hierarchical prevention and control visualization module performs spatial aggregation test based on the distribution, outputs a significant epidemic disease aggregation area, and generates a hierarchical prevention and control thermodynamic diagram in combination with an environment correction factor. According to the system, through multi-source data fusion, geographically adaptive dynamic window prediction and spatial aggregation test, the animal epidemic disease risk probability can be accurately analyzed, an epidemic disease aggregation area is output, a hierarchical prevention and control thermodynamic diagram is generated, and the animal epidemic disease monitoring level and the prevention and control visualization capability are further improved.

A while-drilling acoustic auto-tracking wellbore tool and a method for using same. The tool comprises: a power generation and communication system (100), which comprises a power generation system and a communication system, wherein the communication system is used for bidirectional transfer of measurement data and a control instruction; a power and measurement and control system (200), which comprises a measurement while drilling system, wherein the measurement while drilling system is used for measuring inclination and azimuth data of a newly drilled borehole, and transmitting the data to the communication system; and an acoustic measurement and guidance system (300), which comprises an acoustic emission and measurement and control system, wherein the acoustic emission and measurement and control system is used for emitting an acoustic signal in the newly drilled borehole, receiving a return signal and transmitting the return signal to the communication system. The solution solves the difficult problems of communicating a newly drilled well and an old borehole, determining the distance between a drill bit and the old borehole in real time, etc. The acoustic emission and measurement and control system emits the acoustic signal in the newly drilled borehole, receives the return signal and transmits the return signal to the communication system, and the position of a wellbore is dynamically scanned and monitored in an acoustic while-drilling manner, thereby achieving the aim of performing measurement while drilling.

The invention discloses an urban rail transit security check system, and the system comprises a passenger flow dynamics prediction module which constructs a modified Navier-Stokes equation passenger flow model based on the passenger flow pressure distribution and a motion vector field, and outputs a congestion entropy value and a risk particle flow; the adaptive millimeter wave scanning array switches a mobile focusing scanning mode or a wide-area screening mode according to double thresholds of risk particle flow intensity and congestion entropy, and the wide-area screening mode generates a basic threat index and marks a to-be-rechecked target; the feature analysis module generates a real-time threat level through contour feature comparison in a mobile focusing mode, and starts lightweight analysis on a to-be-rechecked target in a wide-domain mode to generate a threat assessment report; the immune decision-making center fuses multi-source data and dynamically generates a decision-making antibody through a clone selection algorithm, and a channel topology instruction contained in the decision-making antibody is executed according to a rule. According to the invention, through dynamic scanning decision and intelligent channel regulation and control, collaborative optimization of security check efficiency and security of a large passenger flow scene is realized.

The invention belongs to the technical field of medical equipment. According to the dynamic target control method and system based on dual-band OCT cooperative imaging, a dual-band OCT cooperative scanning strategy is adopted, a patient is assisted in watching through a built-in fixation target during near-infrared preview, and fixation target parameters are recorded; a scanning target spot is generated during visible light preview adjustment, the position of the scanning target spot is adjusted through fixation target parameters, the exposure time of a patient under visible light is shortened, the dazzling feeling is reduced, and the comfort level of the patient is improved; in the formal scanning stage, the scanning light beam generates a dynamic scanning target spot and periodically stays at a fixed position to guide a patient to watch, the problem that visible light shields a built-in target is solved, and eyeball movement artifacts are effectively reduced.

This invention relates to the field of industrial visual inspection technology and discloses a visual inspection device for surface defects of stator and rotor laminations after fine grinding. It aims to solve the problems of neglecting burr detection on the lamination surface of existing stator laminations, and the issues of reflective interference, efficiency bottlenecks, and difficulty in balancing reliability and high cycle time in double-sided inspection. The device includes a conveying component, a support frame, a limiting component, a visual recognition component, and a projection lamp. By vertically conveying and positioning the motor stator and rotor laminations and fixing them with a V-shaped clamp, combined with a dual inspection method of projected shadows and direct imaging of the lamination surface, it overcomes reflective interference and reduces the risk of false positives and missed detections. The visual inspection sensor dynamically scans to achieve continuous inspection, improving inspection cycle time and throughput, adapting to large-scale online production, avoiding missed detections, preventing insulation damage during lamination, and ensuring motor efficiency, reliability, and service life.

The invention discloses a converter station steel structure dynamic monitoring and tracking inspection method based on artificial intelligence, and belongs to the technical field of steel structure monitoring and tracking. Comprising the following steps of S1, determining a monitoring object and a scene, S2, building an AI-driven'unmanned aerial vehicle + multi-modal sensor 'dynamic scanning system, S3, performing real-time scanning and AI analysis, S4, performing edge calculation and environment adaptive optimization, S5, improving damage identification precision through federated learning, and S6, improving scene universality through digital twinning. The accuracy, efficiency and adaptability of converter station steel structure monitoring are comprehensively improved, safe and stable operation of a converter station is effectively guaranteed, powerful support is provided for intelligent development of the power industry, an AI-driven'unmanned aerial vehicle + multi-mode sensor 'dynamic scanning system is built, low-altitude close-type global scanning of the steel structure is achieved, and the system is suitable for large-scale popularization and application. And the monitoring comprehensiveness and accuracy are greatly improved.

The invention relates to the technical field of intelligent detection, and discloses a multi-modal X-ray-based cable intermediate joint defect detection method and system, and the method comprises the steps: carrying out the multi-modal X-ray data collection of a cable intermediate joint through a dual-energy-spectrum X-ray dynamic scanning protocol; preprocessing the acquired image data, wherein the preprocessing comprises contrast enhancement and noise suppression; performing three-dimensional reconstruction based on the preprocessed image data, and extracting defect features; and carrying out classification and identification on the extracted defect features by using an improved convolutional neural network. According to the method, the cable intermediate joint is detected by adopting an X-ray penetrating imaging mode at the cable intermediate joint, and the defects and defect hidden dangers of the cable intermediate joint can be effectively detected through methods of image processing, defect identification and the like.

The application discloses a pipe network prediction and intelligent decision system based on physical spectrum sensing and dynamic scanning, which deeply mines the correlation characteristics among multi-source data through dynamic physical spectrum decomposition and frequency domain adaptive topology evolution technology, effectively overcomes the problems of sensor noise interference and data deviation, simultaneously introduces a HydroScan-SSM model, effectively captures the long-term dependence relationship in the time sequence, accurately captures the coupling evolution law of the water quality parameters and the pipe network structure, finally, in view of the pipe network intercepting valve control scene, combines the pipe network data characteristics and intelligent decision demand, uses an intelligent decision framework based on dynamic data driving, realizes the dynamic optimization of the intercepting valve control strategy through real-time data fusion and machine learning algorithm, and effectively avoids the problems of misdischarge, leakage and untimely discharge.

The invention relates to the technical field of signal processing and frequency scanning control. The frequency conversion dynamic scanning method comprises the following steps: acquiring a radio frequency signal in a target frequency band, performing high-speed sampling on the radio frequency signal to obtain an analog sampling signal, performing analog-to-digital conversion on the analog sampling signal to obtain a digital signal, and performing spectral analysis on the digital signal to obtain a frequency conversion signal; and extracting frequency characteristic information of the digital signal, inputting the frequency characteristic information into the frequency regulation and control model to obtain a frequency control instruction, adjusting the output frequency of the local oscillator according to the frequency control instruction, and executing nonlinear hopping frequency scanning. The method has the effect of improving the frequency spectrum coverage efficiency.

The invention relates to a seamless splicing grating, in particular to a method for manufacturing a seamless splicing grating based on a dynamic straight-edge diaphragm, which comprises the following steps of: aligning the edge of the dynamic straight-edge diaphragm with a splicing seam position mark on one side of a substrate, performing simple harmonic motion on the dynamic straight-edge diaphragm along the direction vertical to the splicing seam, realizing dynamic scanning and completing first interference exposure; the edge of the dynamic straight-edge diaphragm is aligned with the abutted seam position mark on the other side of the substrate, stripe locking is carried out by utilizing the grating latent image reserved by the first exposure, so that the dynamic straight-edge diaphragm carries out simple harmonic motion in the direction perpendicular to the abutted seam, dynamic scanning is realized, and second interference exposure is completed; carrying out unified development on the exposed substrate to obtain a photoresist grating mask without splicing seams, and transferring a grating structure on the mask to a dielectric substrate; according to the technical scheme, the defects that in the prior art, due to abutted seam modulation, the laser damage resistance is poor, and the machining difficulty is large can be effectively overcome.

The invention belongs to the field of airborne radar target detection, and relates to a dynamic scanning graph generation method and device with a fixed height area. The method comprises the following steps: S1, determining an azimuth scanning boundary of a target according to an azimuth angle of an inertial system scanning center, an inertial system azimuth scanning range and a radar array inertial system azimuth capability boundary; s2, calculating according to a pitching scanning height range which needs to be covered by the aerial carrier in the pitching direction to obtain an upper boundary and a lower boundary of a pitching scanning angle range of the aerial carrier; s3, determining the number of pitching lines and the number of wave bits of each line according to the azimuth scanning boundary and the upper and lower boundaries of the aerial carrier pitching scanning angle range; s4, generating a beam position dot matrix and storing a scanning graph; and S5, judging whether the wave position point in the wave position dot matrix at the current moment is within the scanning range of avionics issuing, if so, executing the wave position search, and otherwise, traversing the next wave position point. The adaptive capacity of the radar system to the dynamic airspace environment is improved.

The present application relates to the field of sun tracking sensing device, the acquisition of sunlight radiation angle needs to pass through indirect calculation or image analysis, resulting in the response delay of light radiation detection system, the high complexity of analysis, and there is cumulative error under dynamic light condition, the present application provides a kind of sun tracking sensing device and method for realizing the dynamic scanning of light radiation amount, the measurement and direct output of light radiation amount and angle are realized by two-axis holder rotation, the maximum value of light radiation amount and the angle value of corresponding light radiation amount of the place to be measured can be obtained by directly using the device of the present application at the place to be measured, direct output light radiation amount and corresponding angle reduce the dependence on continuous light intensity distribution, solve the dynamic response lag of the sun tracking device in the prior art, and the problem that light radiation amount and corresponding angle cannot be directly output, can be widely applied in photovoltaic panel fixed installation process and photovoltaic panel dynamic angle adjusting system.

This invention relates to a dynamic scanning compensation method and DNA synthesis device based on inkjet printing, belonging to the field of DNA synthesis. By applying threshold segmentation, connected component analysis, and circular Hough transform to a standard analysis image, a circular region for each reaction site is obtained. Based on the distance of all edge points of each reaction site from the center of the circular boundary, it is determined whether each reaction site meets the roundness requirements, thus obtaining information on missing reaction sites. Simultaneously, to address potential inaccuracies after the circular Hough transform, the results are calibrated using the YOLO target detection model based on a convolutional neural network, achieving high-precision detection of missing reaction sites suitable for industrial applications. Furthermore, by adding recognition weights for defective reaction sites such as those with "partially excessive distances from the center" during YOLOv6 model training, the compatibility between the two is further improved, enhancing detection accuracy and meeting the requirements of high-precision DNA synthesis.

The application discloses an automobile wire harness terminal ultrasonic welding method and belongs to the field of automobile manufacturing. The welding method specifically comprises the following steps: I, before welding, collecting information of the terminal and the wire, establishing a digital simulation model of each terminal, simulating the welding process, and predicting welding defects; II, in the initial stage of the terminal and the wire being pressed, performing dynamic scanning on the contact surface, constructing a micro contact resistance distribution map, and identifying a high contact resistance area; the application realizes systematic and closed-loop control of the welding process, avoids limitations caused by single-link optimization, ensures stable welding quality under process fluctuations and material differences, avoids energy waste, realizes higher energy efficiency utilization, reduces dependence on manual experience, improves the strength and conductivity of the welding point, and reduces the scrap rate caused by defects.

The application provides a kind of lake water resource digitalization method, system, equipment and medium, related to the technical field of hydrogeology monitoring, the method comprises: obtaining the Landsat series image and high-resolution series image of the specified geographical area in the historical time period, carrying out ground-based, ship-based dynamic scanning on each lake in the specified geographical area, and collecting three-dimensional point cloud data and image data of each blank area to realize the linkage and cooperation architecture of "star sky ground ship" full element for the all-round measurement and evaluation of the lake water resources in the region. All related data of each lake are fused to construct a multidimensional database for each lake. Based on the multidimensional database, each lake is visualized to generate a digital lake comprehensive display map for each lake. Since the digital lake comprehensive display map covers the multidimensional data of the lake, it can solve the technical problem of insufficient lake hydrogeological structure survey data in the prior art.

This utility model discloses a monitoring device for bookshelves, including a slide rail, a circulating moving component, and a scanning component. The slide rail is positioned above the bookshelf along the book arrangement direction. The rolling end of the circulating moving component is connected to the slide rail. The scanning component is connected to the hanging end of the circulating moving component. The circulating moving component is configured to drive the scanning component to move back and forth along the slide rail. The scanning component is configured to scan and read the electronic tag information of the books arranged on the bookshelf. By using the circulating moving component to drive the scanning component to scan back and forth above the books, the signal covers the entire bookshelf while reducing the number of monitoring devices required, thus lowering the cost. Furthermore, the dynamic scanning method improves the accuracy of the scanning monitoring.

The invention provides a real-time dynamic MRI (Magnetic Resonance Imaging) tumor imaging method and system based on compressed sensing, and relates to the technical field of medical imagines.The method comprises the following steps: acquiring two types of weighted image dynamic signal data generated by a detection device at different time points due to structural transformation through a compressed sensing technology; a multi-echo water-fat separation sequence is adopted for dynamic scanning, signals are separated according to water-fat chemical shift differences, and an initial water diagram and a non-water phase diagram are reconstructed and generated; performing time resolution analysis in combination with the dynamic signal data and the two types of images, generating a signal intensity curve of the detection device, and separating a specificity enhancement signal; and finally, in combination with the time dimension information, reconstructing the image by using a compressed sensing algorithm to obtain a dynamic enhanced image representing the target tissue, and according to the application, the artifacts are inhibited through the time evolution mode of the detection device, so that accurate real-time dynamic MRI tumor imaging can be realized.

The application provides a geometric solution method of key parameters of a forward-looking terrain of an exoskeleton, and through unified space-time coordinate, double-sensor plane fitting, swing-phase dynamic scanning solution, multi-step fusion verification, low-cost, high-precision and high-robustness terrain parameter solution is realized, and the exoskeleton embedded real-time control requirement is perfectly adapted.

The present invention discloses a laser ranging optical system in a dynamic scanning state, comprising a pulsed laser and a laser detector; a laser emitting system, a two-dimensional scanning mirror, a folding reflector, and a laser receiving system arranged in sequence along the optical axis; the normal directions of the two-dimensional scanning mirror and the folding reflector are arranged at a 45-degree angle to the optical axis; the laser receiving system comprises a pitch scanning reflector and an azimuth scanning reflector, the normal directions of the pitch scanning reflector and the azimuth scanning reflector being arranged at a 45-degree angle to the optical axis; the angles of the two-dimensional scanning mirror, the pitch scanning reflector, and the azimuth scanning reflector are adjustable. By adjusting the angles of the two-dimensional scanning mirror, the pitch scanning reflector, and the azimuth scanning reflector, the detection angle of the receiving system can be changed. The pitch and azimuth scanning reflectors in parallel light can reduce their own size, reduce their positioning accuracy and the required rotation adjustment time, and achieve the purpose of obtaining target distance information in a dynamic scanning state.

The invention discloses a light-emitting substrate and a driving method thereof, a backlight module and a display device. The light-emitting substrate comprises a plurality of light-emitting devices, a plurality of control lines and a plurality of signal channels. Wherein the light-emitting devices are sequentially arranged in series, the same control line is electrically connected with the input ends of at least two light-emitting devices, and different control lines are electrically connected with the input ends of different light-emitting devices. The different signal channels are electrically connected with the output ends of the different light-emitting devices. A plurality of control lines are arranged on a light-emitting substrate, at least two of the control lines are circularly scanned, and at least part of signal channels corresponding to the scanned control lines in a plurality of output channels are simultaneously scanned, so that light-emitting devices electrically connected with the scanned control lines and the signal channels are sequentially lightened; therefore, the dynamic scanning driving of the light-emitting substrate is realized, the number of used driving chips can be obviously reduced, the wiring complexity is greatly reduced, and the wiring space is saved.