256 results about "Continuous scanning" patented technology

The invention discloses a reticulocyte recognition and grading system based on a blood smear, and particularly relates to the field of medical cell morphology examination, and the system comprises an image acquisition module, a staining normalization module, an instance segmentation module, an erythrocyte classification module, a reticulocyte grading module and a statistics output module. The image acquisition module adopts an automatic microscope platform to continuously scan the blood smear under a 100-time visual field, acquires a high-quality bright field channel image through an automatic focusing technology, and monitors image definition, contrast and illumination uniformity; the statistical output module is used for calculating the proportion and bluish violet intensity statistics of reticulocytes of each level, and generating a visual quality control result and a diagnostic report; according to the invention, full-automatic processing from samples to reports is realized, interpretability and high classification precision are both considered, subjective difference and omission ratio of manual microscopic examination are significantly reduced, and efficiency and consistency of clinical detection are improved.

The invention relates to the technical field of spectrum detection, and discloses a quality control method for traditional Chinese medicine capsules, which comprises the following steps: continuously scanning by using a micro light spot probe during capsule movement to obtain a spatial spectrum response sequence; performing adjacent micro-area differential operation on the sequence, and filtering a shell background and retaining a particle scattering signal by utilizing a microstructure difference between a capsule shell continuous film and a powder content discrete accumulation; according to the method, a traditional path of a shell standard model is established, through a spatial frequency domain decoupling mechanism, reference errors caused by batch drifting of shell physical attributes are avoided, and the detection sensitivity of trace component fluctuation and foreign matter mixing is improved.

The application discloses a kind of bending piece bending angle laser measuring device, it is related to laser measuring technical field, including detection table, drive mechanism, movable rod, receiver, laser head, control panel, bent pipe material, the top of the detection table is through being provided with sliding slot one, and the inner wall of sliding slot one is connected with mounting seat with sliding fit.Therein, when the bending piece is measured by laser, the fixed bead is matched by the spiral groove, the rotating handle drives the adjusting disc to move, and the four fixed strips are protruded from the telescopic groove by the connecting rod and the diffusion groove, so that the pipe material is fixed from the inside, the continuous scanning and the accuracy of laser are ensured, after measuring one side, the telescopic rod is matched with the supporting rod and the rack and the limiting plate, the pipe material is lifted and rotated to turn over the surface, the double-side data acquisition is completed by single clamping, and the efficiency and data reliability are improved.

The present invention provides a computer-implemented method for X-ray analysis. The method includes receiving X-ray analysis data from an X-ray detector having multiple detection channels. The X-ray analysis data includes angular scan intensity data obtained by measuring X-ray intensities when successively scanning the X-ray detector. A series of intensity measurement values ​​is acquired for each detection channel. Each series of intensity measurement values ​​is an intensity angular scan. An angular offset is determined for each detection channel. The method further includes determining, for each of a plurality of detection angle bins, an intensity contribution factor for at least one of the intensity measurements. The intensity contribution factor is determined according to an angle range associated with the detection angle bin and the angular offset of the detection channel. For each of the plurality of detection angle bins, a binned intensity is determined based on the intensity of the at least one intensity measurement value and its corresponding intensity contribution factor.

The invention relates to the technical field of laser radars, and provides a laser radar angular resolution enhancement method, which comprises the following steps of: obtaining a spatial direction priority according to a vehicle course, road information and target information obtained by a vehicle external sensor so as to dynamically adjust laser pulse density and energy level; scanning data generated after N circles of continuous scanning serve as a composite frame, the starting angle of each circle is shifted, multiphase filtering and coherent superposition are conducted in a digital domain, and the effective angular resolution is obtained. The invention further discloses a laser radar device, the method and the device can adjust the pulse density and energy distribution in the ROI direction in real time according to the dynamic scene of the vehicle, the total pulse number is kept unchanged, and the total power consumption is not increased. The effective horizontal angle resolution is improved through inter-frame phase offset and multi-phase synthesis. A corner reflector and an IMU (Inertial Measurement Unit) are integrated in the laser radar, and phase and ranging errors are corrected in real time through periodic loopback calibration, so that the angle stability is kept.

The invention relates to a high-angular-resolution atmospheric detection laser radar acquisition and control system, and belongs to the technical field of atmospheric detection laser radar data acquisition. The system comprises an ARM main control module, an acquisition card and a scanning module, wherein the ARM main control module is internally provided with a multi-core CPU (Central Processing Unit), and when the system runs, a data reading process, a data processing process and a data storage process are respectively distributed to different cores of the multi-core CPU for parallel execution; the ARM main control module is used for issuing an instruction to the acquisition card and reading a hardware accumulation result of the acquisition card for processing and storing; the scanning module is controlled by the ARM main control module to perform continuous scanning; and the acquisition card is used for performing high-angle-resolution acquisition on aerosol observation data obtained in the continuous and rapid scanning process of the scanning module according to an instruction of the ARM main control module. According to the invention, the real-time monitoring capability of aerosol space-time distribution in a complex atmospheric environment is improved.

The invention relates to the technical field of integrated circuit testing, and discloses a method and equipment for scanning a voltage and current flip point of a chip, and the method comprises the following steps: an upper computer completes parameter configuration and wave table loading and then sends a starting instruction, a global synchronization unit generates a synchronization signal, and the synchronization signal is sent to a chip; the random waveform generator is started in parallel for scanning, the trigger unit is started for monitoring, the internal counter is started for timing, when the trigger unit monitors overturning, a stop signal is sent, the global synchronization unit latches a count value immediately, and finally, the upper computer reads the count value and calculates an overturning point value in combination with a wave table rate and a clock period. According to the invention, the global synchronization unit is used for coordinating the parallel hardware architecture of the arbitrary waveform generator and the trigger unit, so that the continuous scanning of the excitation signal and the real-time monitoring of the response signal can be autonomously operated on the hardware level, and the overall time consumption of a single flip point test is greatly shortened.

The invention relates to the technical field of soil component detection, in particular to a soil component detection method and system based on spectral analysis, and the system comprises an intelligent mobile platform and a multifunctional integrated spectrum acquisition module. In the advancing process, soil is continuously scanned through the spectrum collection module, spectrum information is obtained in real time, data are processed through the spectrum feature extraction unit, the soil component type and distribution proportion are obtained, and a soil component distribution diagram and quantitative data are generated. According to the method, the detection efficiency can be remarkably improved, the problem of data missing of a traditional fixed-point sampling mode is avoided, meanwhile, the adaptability to complex terrains and diversified soil types is enhanced, and high precision and wide applicability of a detection result are ensured.

The invention discloses a method for improving size precision and surface quality of Nb521 alloy formed through electron beam selective melting. The method comprises the steps that firstly, a three-dimensional model of the Nb521 alloy is stretched in the height direction, slicing and layering are conducted, each single slicing layer is divided into an inner area and an outer area, and data of each slicing layer are obtained; secondly, spherical Nb521 pre-alloyed powder is added, and data of all cutting layers are imported; 3, after powder spreading, scanning and melting in different areas to form a first single-layer solid sheet layer; and 4, powder spreading and melting processes are repeated. According to the method, through height stretching pre-compensation cooling shrinkage of the Nb521 alloy three-dimensional model, a single cutting layer is divided into a surface area and an internal area, double-concentric-square-shaped contour scanning is conducted on the surface area, snakelike continuous scanning, negative defocusing and corner dynamic adjustment are conducted on the internal area, the forming quality and efficiency are guaranteed, and the method is suitable for large-scale production. And the size precision and the surface quality of the Nb521 alloy part are improved, and the method is suitable for manufacturing Nb521 alloy complex structural parts.

The invention provides a personalized intelligent hospital guide path planning method and system. The method comprises the following steps: continuously scanning a consulting room entrance area through a wide-angle image acquisition equipment array to obtain real-time personnel distribution data; calibrating the coordinates of the high-concentration area, and generating a dynamic space density map; associating the dynamic space density map with the hospital guide path to calculate congestion delay time; when the congestion delay time exceeds a threshold value, generating a path reconstruction instruction carrying an emergency degree label; based on a historical congestion record database, fitting a movement rule of a high-aggregation area by using an emergency degree label, and determining a movement direction vector; and in combination with the moving direction vector and a path reconstruction instruction, performing real-time blockage avoidance calculation on the standby path, and generating a dynamic hospital guide path bypassing the high-concentration area. According to the invention, through dynamic cooperation of real-time people flow monitoring and historical congestion rule prediction, the optimal hospital guide path bypassing the congestion area is automatically generated in the medical peak period, and the congestion rate is reduced.

The invention relates to the field of microcavity photonics and the technical field of control, and provides a temperature locking method and device based on an optical microcavity absorption peak position, and the method comprises the steps: employing a tunable laser to output continuous light, and obtaining a transmission spectrum power curve; manually adjusting the output wavelength of the tunable laser, and recording the wavelength interval as a rough absorption peak position when a wave band with significantly reduced transmission spectrum power is detected; automatically adjusting the output wavelength of the tunable laser, and continuously scanning in the rough wavelength interval of the absorption peak position to obtain the absorption peak position; the offset between the position of the absorption peak and the position of a target absorption peak of the optical microcavity in a natural room temperature state is calculated, and the detected position of the absorption peak is stably maintained at the position of the target absorption peak by automatically heating or refrigerating the optical microcavity. Through the method, the problems of heat conduction path delay and thermal field gradient between the microcavity and the sensor are avoided, and the response speed and precision of wavelength drift compensation are improved.

The invention discloses a corn straw biological power generation analysis method based on ecological environment protection, and relates to the technical field of biological power generation analysis, and the corn straw biological power generation analysis method comprises the following steps: continuously scanning a straw flow to obtain multi-source heterogeneous data; inputting multi-source heterogeneous data into the straw characteristic analysis model, and deconstructing key physical and chemical parameters; the key physical and chemical parameters are received, a power generation load instruction and real-time state data of boiler operation are combined, a multi-target optimization problem with the boiler thermal efficiency, the slagging risk index and the key pollutant emission concentration as optimization targets is solved through a power generation prediction control model, and a feeding instruction and a combustion instruction are generated; feeding combustion is monitored, and disturbance parameters and combustion state detection data are obtained; constructing a hybrid control model, and performing control parameter adjustment on known disturbance caused by fuel characteristic fluctuation in disturbance parameters; and the combustion state prediction deviation of the power generation prediction control model and unknown disturbance in the disturbance parameters are adjusted in real time.

The invention relates to the technical field of index structure recombination, in particular to a nursing process management database index optimization method, which comprises the following steps of: performing cost calculation on multiple indexes by adopting a gradient lifting regression tree, comparing the cost calculation with a threshold value, and forming a recombination candidate priority list under the support of a numerical result; a potential recombination object has a quantifiable judgment standard, predicted consumed time is calculated in combination with the low-ebb IO capacity and compared with the time slice length, the screening process can correspond to the system resource bearing condition, a B + tree algorithm is adopted for calculating a loading factor and the continuous scanning length, and through merging, splitting and redistribution operation, the screening efficiency is improved. A node organization structure is finely adjusted, it is guaranteed that an index structure and an access mode are kept coordinated, information entropy is utilized to sort and screen a field sequence, the field arrangement with high distinction degree is preferentially used for constructing a new index, atomic switching operation is executed to replace an old index, and the field sequence has adaptability in a dynamic data environment.

The invention relates to a broadband continuous testing device and method for diffraction efficiency of a medium-long wave infrared grating. The device comprises a broadband light source, a medium-long wave infrared monochromator, a collimation system, a polarization selection system, a broadband spectrum beam splitting system, a signal enhancement detection system, a sample clamping and multi-dimensional moving system and an automatic control system. According to the testing method, the absolute diffraction efficiency of the grating is tested through double optical paths, measurement errors caused by fluctuation of a light source can be avoided, the measurement errors are further reduced by deducting environmental noise and improving the signal-to-noise ratio through a signal enhancement detection system, an automatic control system is added, and continuous scanning testing in a specified wave band is achieved. The test speed is improved. By means of the device and the method, automatic and rapid measurement of the diffraction efficiency of the medium-long wave echelette grating under the conditions of at least 2.5-14 micron broadband, different wavelengths, any incident angle and dual polarization states can be achieved.

The invention relates to a highway pavement crack real-time identification method and system based on a millimeter-wave radar, and relates to the technical field of disease detection. The millimeter-wave radar is cooperated with an optical sensor, continuous scanning is performed on a pavement through the millimeter-wave radar, and multi-dimensional features are extracted for primary perception and probability determination; when a suspicious area is identified, an optical sensor is triggered to carry out high-precision image confirmation and crack identification, and finally crack information is output through decision fusion. Large-range and low-power-consumption primary perception is performed through the millimeter wave radar, and the optical sensor is triggered to perform high-precision imaging analysis on a specific area only when radar feature analysis shows that the crack possibility exists. The coarse-to-fine collaborative strategy effectively overcomes the limitation of a single sensor technology, high-precision pavement disease detection is realized, and the crack suspicion can be identified from the physical level first by directly capturing the electromagnetic wave physical property change caused by the crack.

The invention discloses a pressure vessel weld reinforcement automatic detection device and detection method, and relates to the technical field of weld detection. The automatic detection device for the surplus height of the welding seam of the pressure vessel comprises a pressing plate which can move downwards in the vertical direction; a plurality of arc-shaped clamping plates are evenly arranged on the inner side of the positioning ring in the circumferential direction, and the arc-shaped clamping plates are stressed to move inwards in the downward pressing process of the pressing plate, so that the outer wall of the connecting pipe is clamped; and the flexible track is arranged on the periphery of the connecting pipe in a surrounding mode, a laser detector is arranged on the flexible track, and the laser detector can move in the circumferential direction of the flexible track and is used for conducting continuous scanning detection on the excess weld metal of the saddle-shaped welding seam. The pressing plate, the positioning column, the limiting plate and the arc-shaped clamping plate form a multidirectional cooperative positioning and clamping mechanism, so that the integrated constraint of axial pressing, radial centering and circumferential limiting of the connecting pipe is realized, and the relative positioning precision and the overall structural stability between the detection device and the connecting pipe are remarkably improved.

The present application relates to the technical field of sample pretreatment automation, and discloses a system of a full-automatic sampling tube cap screwing and pipetting workstation and a running method thereof.The system comprises a motion point definition module, a cap screwing adaptation identification module, a label scanning module, a pipetting planning and execution module, a cap screwing torque calling module and a real-time torque acquisition module.The system realizes continuous scanning and reliable identification of the cap profile in the motion state through a dynamic coordinate system and key motion points, dynamically calls matched torque parameters to execute cap screwing according to the identification result, and simultaneously acquires real-time torque data.The system synchronously completes sample label information analysis, pipetting path planning and pressure monitoring.The scheme realizes adaptive perception and closed-loop cap screwing control of the cap state, and improves the robustness of cap identification, the consistency of cap screwing action and the reliability of the overall process.

Disclosed are a multi-layer tabs welding method for a battery and a battery. The method comprises conducting continuous scanning welding with laser on multi-layer tabs and a to-be-welded workpiece to form a strip-like or block-like welding bead, and repeating the aforementioned process to form a plurality of discontinuous welding beads at a connection between the multi-layer tabs and the to-be-welded workpiece.

This invention provides an artificial surface plasmon full-space beam scanning leaky antenna, comprising a dielectric substrate. The upper and lower surfaces of the dielectric substrate form a top layer and a bottom layer, respectively. The top layer of the dielectric substrate has a balun structure, an artificial surface plasmon strip group, and several metal stubs. Balun structures are symmetrically arranged at both ends of the artificial surface plasmon strip group. Several metal stubs are periodically arranged and symmetrically arranged on the upper and lower sides of the artificial surface plasmon strip group. The artificial surface plasmon strip group includes a pair of slidingly symmetrical artificial surface plasmon strips. This invention enables continuous scanning of the main beam from back-firing to front-firing, possessing full-space beam scanning capability. It has advantages such as small bandwidth occupation, high radiation efficiency, high directivity, high gain, low profile, and relatively small overall size, and can be applied in wireless communication fields such as automotive radar.

A computer device includes at least one processor in communication with at least one memory device. The at least one processor is programmed to: a) receive, from the image capture device, a plurality of images for a continuous scan phase shift interferometry (PSI), wherein each image of the plurality of images includes a first plurality of pixels of a first item and a second plurality of pixels of a partial cavity; b) perform intensity scans of each pixel in the second plurality of pixels; c) identify zero transitions for each of the second plurality of pixels; and d) statistically evaluate the identified zero transitions by polynomial regression analysis.

The invention relates to a method for realizing full-time frequency spectrum monitoring based on a nest unmanned aerial vehicle and a fixed monitoring station. The method comprises the following steps: issuing a full-time frequency spectrum monitoring task; continuously scanning the monitoring target frequency band; extracting a signal frequency, and performing parameter measurement; signal parameters which are not matched with the known signal library are stored, and the equipment state is recovered; setting a time interval, and generating a direction finding task list; the unmanned aerial vehicle advances according to a preset track and performs a monitoring direction finding task; the unmanned aerial vehicle returns to enter the nest, and charging and heat dissipation reconditioning are automatically completed; and updating the signal positioning data. By adopting the method, the system, the device, the processor and the computer readable storage medium for realizing full-time frequency spectrum monitoring based on the nest unmanned aerial vehicle and the fixed monitoring station, a reliable positioning result is given through a multi-point direction finding result of the unmanned aerial vehicle on the whole track, high-frequency weak signals are easy to capture, the monitoring utilization rate of the unmanned aerial vehicle is greatly improved, and the real-time performance of the unmanned aerial vehicle is improved. The total element information of the signal is collected, and the management is scientific and accurate.

The embodiment of the application provides a three-dimensional reconstruction method and related devices. The method comprises: based on an image frame, extracting point data from point cloud data associated with the image frame and putting the point data into a target point data set; wherein, the associated image frame and the point cloud data are: there is an overlapping surface area between a surface area of a target object corresponding to the image frame and a surface area of the target object corresponding to the point cloud data; the point data put into the target point data set corresponds to the overlapping surface area; in the process of continuously scanning to generate the associated image frame and the point cloud data, point data meeting a specified condition in the point cloud data is added to the target point data set; and a three-dimensional reconstruction model of the target object is generated according to the point data in the target point data set. The three-dimensional reconstruction efficiency can be improved to a certain extent.

The invention relates to a rapid scanning type laser active detection system based on laser angle on-line control, and the system comprises an adjustable beam expanding optical unit which can continuously adjust the beam expanding multiplying power on line through position closed-loop control; the scanning detection execution unit can perform large-range search and can compensate image motion caused by carrier motion and continuous scanning, and a variable-speed spiral scanning mode with high probability of finding a target is adopted as a scanning mode; the off-axis beam expanding unit is used for further compressing a laser divergence angle; the photoelectric imaging system can splice scanned images on line, so that the scanning process is clearer and more visual; and the time sequence control unit assists in image motion compensation control. The scanning process can be rapidly completed, imaging is clear in the scanning process, and the scanning result can be directly presented.

The utility model discloses a mining wireless spraying and dust falling system based on distributed optical fiber temperature measurement, which comprises an optical fiber temperature measurement system and a wireless spraying, watering and dust falling system which are respectively connected with an underground looped network through a wireless switch, and the underground looped network is in signal connection with an external dispatching centralized control center through a ground looped network. Wherein the optical fiber temperature measuring system comprises a temperature sensing optical cable laid along the whole course of a roadway and a temperature monitoring element used for continuously scanning the temperature sensing optical cable, and the wireless spraying, watering and dust falling system comprises an underground centralized control center, a wireless pyroelectric infrared sensor and a wireless spraying host machine laid along the whole course of the roadway. The underground centralized control center is in signal connection with the underground looped network, the wireless spraying main machine is provided with an air and water valve, and the temperature monitoring element is in signal connection with the wireless spraying main machine. According to the mining wireless spraying and dust-settling system based on distributed optical fiber temperature measurement, the effects of water spraying and dust settling and fire preventing and extinguishing can be achieved at the same time, and use is convenient.

A scanning path planning method for a metal laser powder bed fusion forming process comprises the steps that 1, a TPMS lattice model is built through an implicit function equation, slicing is conducted through an implicit slicing method, and a two-dimensional contour is obtained; 2, generating a multi-stage initial contour line path through contour surface constants of the uniform change implicit function equation; 3, calculating the distance between the adjacent initial isoline paths, and identifying an area with the distance exceeding a preset tolerance as an unqualified area and the rest as a qualified area; 4, retaining an initial isoline path in the qualified area, and generating a grid filling path in the unqualified area to obtain a mixed path set; 5, inputting a mixed path set, and on the premise of not changing geometric coordinates of each path section, carrying out connection sequence optimization on all the path sections to form a continuous scanning track; and 6, converting the formed continuous scanning track into a file format which can be executed by laser powder bed melting equipment. According to the method, the powder adhesion and deformation risks are remarkably reduced, and the SLM forming precision and efficiency are improved.

The invention belongs to the technical field of AGVs, and provides an AGV environment sensing method and system based on laser beams. The method comprises the following steps that: a vehicle-mounted laser radar continuously scans a surrounding environment to obtain a laser point cloud data frame set with a continuous time sequence; a plurality of dynamic targets are obtained based on the laser point cloud data frame set, dynamic characteristic parameters of the dynamic targets are extracted, and light dynamic targets are identified from the dynamic targets; performing motion center analysis on the corresponding light dynamic target based on the motion trail features to obtain a motion center analysis result; and determining a plurality of obstacle targets based on a motion center analysis result, planning a driving track in the surrounding environment based on each obstacle target, and executing. According to the method, the false stop rate of the AGV caused by the interference of flying catkins can be reduced, the safety risk that the AGV and the floating yarn are pulled is effectively avoided, the sensing reliability and the operation intelligence level in a complex spinning environment are improved, and then the accuracy of trajectory planning is improved.

The present application relates to the technical field of spectral detection, and discloses a quality control method for traditional Chinese medicine capsules, comprising: acquiring a spatial spectrum response sequence by continuously scanning with a micro-spot probe in capsule movement; performing adjacent micro-area difference operation on the sequence, filtering out the shell background and retaining the particle scattering signal by using the microstructure difference between the continuous film of the capsule shell and the discrete accumulation of the powder content; and calculating the statistical dispersion of the difference sequence to construct a fluctuation fingerprint feature and perform qualification determination. The present application establishes a traditional path of the shell standard model, avoids the reference error caused by the batch drift of the physical properties of the shell through a spatial frequency domain decoupling mechanism, and improves the detection sensitivity of the fluctuation of trace components and the mixing of foreign matters.

The application discloses a straight line feature extraction method and device, equipment and a storage medium, and relates to the technical field of mobile robots. The technical scheme provided by the application comprises the following steps: extracting candidate point clouds from a laser point cloud according to the curvature value of each scanning point of the laser point cloud, and sorting the scanning points of the candidate point clouds according to corresponding scanning angles to obtain ordered candidate point clouds; extracting a preset number of continuous scanning points from the ordered candidate point clouds as candidate line segment point clouds, and determining candidate line segment point clouds that satisfy a first preset collinear condition as candidate straight line point clouds; fusing adjacent candidate straight line point clouds that satisfy a second preset collinear condition into the same straight line point cloud, and dividing adjacent candidate straight line point clouds that do not satisfy the second preset collinear condition into different straight line point clouds; determining straight line point clouds that satisfy a third preset collinear condition, and converting the straight line point clouds that satisfy the third preset collinear condition into discrete straight line feature points.

The present application provides a continuous scanning laser Doppler vibration test method for the outer surface of a thin-walled casing. Firstly, the continuous scanning vibration test is performed on the outer surface of the thin-walled casing, and the vibration time-domain signals of the outer surface of the thin-walled casing are collected. Then, the vibration displacement amplitude of the outer surface of the thin-walled casing is obtained by processing the tested time-domain signals through a band-pass filter and a Hilbert transform. Next, the laser continuous scanning path point coordinate model of the variable cross-section outer surface of the thin-walled casing is established, and the laser continuous scanning path point coordinates of the outer surface of the thin-walled casing at the missing hole are deleted by comparing with the coordinate model of the UG of the thin-walled casing. The vibration displacement amplitude based on the laser continuous scanning path point coordinates is obtained. The continuous scanning modal shape of the planar expansion of the outer surface of the thin-walled casing is obtained. Finally, the three-dimensional continuous scanning modal shape of the outer surface of the thin-walled casing is obtained through a coordinate conversion formula. Compared with the traditional test method for the outer surface of a thin-walled cylinder, the test efficiency is greatly improved, and the range of the test structure is expanded.

The invention relates to the technical field of intelligent data terminal remote control, in particular to a bar code data transmission method allowing missing codes, which comprises a code generation step of data file conversion and a decoding step of scanning equipment. When data transmission is carried out, a to-be-transmitted data file is coded to generate a series of bar codes, continuous scanning is carried out through a code scanning device, the data is completely transmitted into the device, a fault-tolerant mechanism is constructed by using an RS error correction algorithm principle, RS error correction code words are added to realize redundancy, and part of the bar codes cannot be successfully scanned or have recognition errors. And the system can still utilize the redundant information reserved in the error correction group in the subsequent decoding stage to recover missing or wrong code words, so as to reconstruct a complete data file. Compared with the prior art, the code scanning equipment does not need to interact with equipment for displaying bar codes, has higher stability, is particularly suitable for a data transmission scene in a dynamic or interference environment, and has higher feasibility and adaptability.