88results about How to "Serve as a reference" patented technology

The invention discloses a WiFi indoor locating method based on domain clustering. The method comprises the following steps: firstly selecting a plurality of reference points in two different indoor environments to serve as calibration points, collecting the WiFi signal strength information at the calibration points, and associating the signal strength information with the position information of the calibration points to form position fingerprint so as to obtain a position fingerprint library; then collecting the WiFi signal strength information of a test point, performing pre-matching on the WiFi signal strength information of the test point with the position fingerprint library, and finding K adjacent calibration points closest to the test point by using Euclidean distances of the calibration points and the test point; counting the boundary values of the K adjacent calibration points, and figuring out a central point; then locating the test point by using a WKNN or Naive Bayesian classifier; and m AP are observed by the calibration points and the test point in total, obtaining possible positions of the m test points; and finally determining a final position of the test point. Locating results tested in different indoor environments prove that the WiFi indoor locating method provided by the invention has better performance.

The present invention relates to the preparation process of polynary positive pole material of lithium ion cell. The polynary positive pole material is prepared through first preparation of compound transition metal oxide in spinel structure as the intermediate product, the subsequent mixing with lithium salt and final high temperature calcining. The polynary positive pole material has composition of LiNixCoyMn(1-x-y)O2, where, x is 0.1-0.8, y is 0.1-0.5, and x+y is 0.5-1.0. The polynary positive pole material has homogeneous granularity distribution, specific discharge capacity in 2.8-4.3 V / Li up to 157 mAh / g, excellent circulating stability and low cost, and is suitable for use in lithium ion cell.

The invention relates to a shop people flow identification and analysis method and system. The method comprises the following steps of: enabling a server to read video streams, extracting video frames, enabling a video image processing identification module to identify a rectangular frame which tightly surrounds the contour of an identifiable object and the probability that the identifiable objectmay be a set target according to a deep neural network target identification model; recognizing key points corresponding to human skeleton points according to the deep neural network key point recognition model; calculating attributes of postures, tracks and motion status of the target person in the frame at the moment and on a certain time axis based on the relative positions of the key points and the interval time sequence relation between frames, and finally, counting and displaying the passenger flow groups capable of being identified within a certain time length to a user. The system includes components that implement the method. According to the invention, a comprehensive and three-dimensional video monitoring data and store operation management combined system is constructed, and objective, accurate and valuable in-store personnel and passenger flow monitoring analysis can be provided for owners.

The invention provides a method for detecting tannin substance in salvianolic acid. The method for detecting tannin substance in salvianolic acid comprises the following steps of: firstly, preparing a reference solution; secondly, dissolving salvianolic acid to obtain an unhydrolyzed sample solution before hydrolysis; thirdly, dissolving salvianolic acid and then hydrolyzing, so as to obtain a hydrolyzed sample solution; fourthly, determining gallic acid, catechinic acid and ellagic acid in the unhydrolyzed sample solution, the hydrolyzed sampled solution and the reference solution; and fifthly, comparing chromatograms and judging whether the tannin substance exists in salvianolic acid.

The invention relates to a multipoint gas sensing system based on an optical fiber buffer, which comprises an address encoder, a double-wavelength light source, a multipoint optical fiber sensing network and a demodulator. The address encoder generates an address code and a read-write control signal of different monitoring points; each detecting unit of the multipoint optical fiber sensing network adopts a buffer structure introduced with a gas absorbing chamber in an optical fiber loop; a double-loop coupling all-optical buffer and a polarization type all-optical buffer can be adopted; under the control of a write signal, the optical signal of the address code is written into the optical fiber loop of the detecting unit and circularly absorbed by the gas many times; the absorbed optical signal is read out and sent to the demodulator for photoelectric conversion, comparison with the reference light, address decoding and data processing in order to gain the gas concentration in different points and realize the multipoint gas monitoring. The system gains the good effects through improving the structure of the absorbing chamber, adding an optical amplifier, a polarization control and a device with the wavelength of 1665nm, and is used in the monitoring of the gas which has the wavelength of 1665 nm and is near provided with an absorption peak.

The invention discloses a method and a device for collecting information. The invention adopts the technical scheme that access information of browsing Web pages by users is transmitted to a database for searching engine, so as to realize the purpose of collecting dynamic Web pages through the database for searching engine. In addition, in the technical scheme of the invention, the information of browsing the Web pages the by users is obtained, so that service conditions of the users of the Web pages can be truly mastered. Therefore, the method and the device for collecting information also plays a significant referential role of ordering the Web pages for searching engine.

The invention discloses a caulking and jointing construction method for brick joints of tiles in a tunnel. The caulking and jointing construction method is characterized in that a brick joint caulkingand jointing device is adopted to caulk or joint the brick joints of the tiles in the tunnel; the brick joint caulking and jointing device includes a caulking and jointing trolley capable of moving back and forth on the surface of a masonry structure and a storage hopper for storing filling mortar which is used for filling the brick joints; when caulking is actually performed, the steps of jointing device removal, storage hopper connection, filling mortar adding, being-in-place of a caulking trolley with a hopper and caulking are included; and when jointing is actually performed, the steps ofstorage hopper connection, filling mortar adding, being-in-place of a jointing trolley with a hopper and jointing are included. The caulking and jointing construction method has reasonable design, simple and convenient construction, high construction efficiency and good use effect, the movable brick joint caulking and jointing device is used for caulking or jointing the brick joints, the fillingmortar can be automatically fed into the treated brick joints, compaction and groove pressing forming can be performed on the filling mortar fed into the brick joints, and the quality of caulking andjointing can be ensured.

The invention provides a riverway flow velocity video monitoring device based on deep learning. The riverway flow velocity video monitoring device comprises a monitoring terminal and a monitoring center. The monitoring terminal comprises an equipment box body, a support rod is arranged above the equipment box body, a monitoring unit is arranged at the upper end of the support rod, and a control unit, a power supply unit and a communication unit are arranged in the equipment box body; a beacon supplementing unit is also arranged in the equipment box body; the control unit is connected with themonitoring unit, the communication unit and the beacon supplementing unit, and the control unit is connected with a monitoring center through the communication unit; and the monitoring unit comprisesa monitoring camera arranged at the upper end of the support rod. The invention further provides a riverway flow velocity video monitoring method based on deep learning. By means of the riverway flowvelocity video monitoring device and method, normal work can be done at night and in heavy rain and heavy fog weather, work can be continuously done for a certain time under the condition that mains supply is interrupted, the accidental risk resistance is high, returned data can be compared with historical data in previous years, and a reference role is played for dispatchers.

The invention discloses an indoor position positioning method carrying out RSSI denoising according to the RSSI maximum value; the method comprises the following steps: firstly selecting a plurality of calibration points in the indoor environment, and gathering a WIFI receiving signal strength index (RSSI) at each calibration point; aiming at certain calibration point, ranking gathered RSSIs of certain WIFI signal source AP from big to small, and selecting M values in order from the maximum value or the second maximum value; solving the average value of the M values so as to serve as the RSSIestimated value of the AP corresponding to the calibration point; associating all solved RSSI estimated values with calibration point position information so as to form position fingerprints, thus obtaining a position fingerprint database; gathering WIFI RSSI data of a tested point, and processing the data so as to obtain the tested point RSSI estimated value; finally assuming that K fingerprint points closest to the positioning point are selected, and using WKNN to position the tested point, thus determining the tested point estimated position. The method has better positioning precision andinterference immunity which are shown by the positioning results tested under different indoor environments.

The invention provides an analytical method of operation of a large transformer with inconsistent three-phase parameters. The analytical method includes the following steps: carrying out analytical calculation on parameters of a large three-phase transformer set, comparing the parameters with related indexes so as to analyze possibility of operation of the transformer with the inconsistent three-phase parameters, reutilizing electromechanical-electromagnetic simulation analog computation to analyze operation condition of the transformer set in a power grid and effects on other devices, further verifying possibility of grid-connected operation of the transformer set, and lastly working out related operation types and relay protection setting value adjusting schemes according to the result of analysis and emulation to conduct operation of the transformer set. According to the method, the effect of operation of the large transformer with the inconsistent three-phase parameters on the power grid can be completely and accurately analyzed, and corresponding operation types and the setting value protection adjusting schemes can be provided, so that safety and stability of the power grid in operation of the large transformer with the inconsistent three-phase parameters are guaranteed. The method can be applied to analysis of transformer accidental replacement and transformer back-up transformer applicability, and the like.

The invention relates to a field mounting method for a test chamber. The field mounting method comprises the following steps: requiring boards; blanking the boards; carrying out edge planning on the boards; welding and joining the boards; rolling the boards into a winding drum; longitudinally welding the winding drum to form drum sections; carrying out roundness correction on the drum sections; carrying out gas cutting on the drum sections; fitting up and welding the drum sections; cutting the drum sections into parts; carrying out field welding on the parts; and carrying assembly welding on an enclosure and the drum sections. The field mounting method solves the problem that a large container is difficult to transport, guarantees the field mounting coaxiality, adopts split transportation and field welding, utilizes a tool to support welding, and guarantees that the roundness of a drum body reaches standard requirements.

The invention discloses an identifying and filing method for newly found cultural relics, and the method comprises the steps: firstly analyzing the cultural relics, and obtaining a plurality of characterized indexes of the cultural relics; secondly taking the characterized indexes as the basis, and generating storage codes for representing the cultural relics; finally storing the storage codes in a cultural relic database of a computer, so that a user carries out the querying and searching. Through obtaining the surface information, structural information and component information of the cultural relics, the method obtains the characterized indexes which represent the characteristics of the cultural relics. The storage codes for representing the cultural relics are generated and stored in a computer. Because the storage codes comprise the characterized indexes of the cultural relics, the related information of the cultural relics can be convenient to extract according to the storage codes, thereby bringing great convenience to the archaeological workers for carrying out the subsequent judgment and identifying of the cultural relics. Moreover, the method is high in analysis and identifying speed. Compared with a method of judgment through the personal experience of the archaeological workers, the method is greatly superior in accuracy and reliability.

The invention discloses a temporary structure for installation of a continuous steel girder bridge and a beam segment construction method thereof. The structure comprises a pylon and a displacement adjusting device, the pylon comprises a pylon main beam, a pylon beam, a pylon main beam stiffening plate, a pylon main beam ear, a bridge top surface ear and a pin shaft, the pin shaft is connected between the pylon main beam ear and the bridge top surface ear, and the displacement adjusting device comprises a vertical jack, a horizontal jack, a counter-force seat, a limit groove and a bridge top surface steel plate. The method comprises the steps of a, the design of the temporary structure; b, the production of a rack; c, the production of the displacement adjusting device; d, the continuous construction of the beam segment. The structure has the advantages of small consumables, simple installation and disassembly, cost saving and short construction period, is not limited by the line typeof the main beam of the bridge, and can well control the positioning accuracy of the main beam of the pylon; the steel beams are not limited by construction conditions during segmentation, and a segmentation line is set at the zero bending moment according to the force condition, thereby reducing the internal stress of the position weld of the segmentation line and indirectly increasing the connection strength of the two sections of the steel beams.

The invention discloses a Chinese aspect level sentiment classification method based on pre-training sentiment embedding, and provides a deep learning model combining pre-training sentiment embedding and semantic embedding. The model converts an aspect-level sentiment classification problem into a sentence pair classification problem, fine-tunes the BERT model on the word level of Chinese comments, and trains sentiment feature vectors on the word level by using an adversarial learning method and a double-layer bidirectional LSTM encoder module. And the obtained emotion information is dynamically combined with the last several layers of semantic information of BERT through linear weighting and a multi-head self-attention mechanism, so that the semantic and emotion information of a specific aspect category is obtained, and accurate emotion classification is carried out. The characteristics of Chinese patient comments are combined, rich decision information is provided for the patient, some doctors who pay more attention to performance and weaken medical science and ability are made to improve own work, and important guarantee is provided for improvement of online medical quality and doctor service level.

The present invention discloses a base seat adjustable type bedside lower limb rehabilitation training device. The base seat adjustable type bedside lower limb rehabilitation training device comprisesa width adjusting base seat capable of base seat width adjusting, a height adjustable vertical column, a driving part, a rotating beam, two lower limb fixing devices and a leg weight reducing guidingdevice; the vertical column is vertically arranged on the width adjusting base seat, the rotating beam is fixedly connected to a top end of the vertical column, the driving part is fixed to a tail end of the rotating beam, the driving part is connected to the lower limb fixing devices, the leg weight reducing guiding device is arranged on the rotating beam, and the leg weight reducing guiding device is connected to the lower limb fixing devices for reducing leg strength of patients during training processes. The base seat adjustable type bedside lower limb rehabilitation training device has anitrogen spring which is more stable and reliable in the width adjusting, and the base seat adjustable type bedside lower limb rehabilitation training device assists in adjusting overall height and saves manpower.

The invention provides a projection screen capable of being fixed in a ceiling for solving the defect existing in the present projection screen. The height of the projection screen is adjustable, so that the projection screen can be hidden in the ceiling without affecting the overall indoor beautiful effect, and the projection cloth can be dropped off if necessary. Particularly, the square hidden ceiling projection screen comprises a shell, screen cloth, connection fixing element and a screw rod, wherein the shell is provided with a screen cloth outlet; the screen cloth is accommodated in the shell; the connection fixing element is arranged at the top of the shell and the screw rods are arranged in the ceiling; and the screw rods are connected with the connection fixing element. The square hidden ceiling projection screen does not affect the overall indoor beautiful appearance, and is easy in installation and convenient in use, and is a projection screen with a wide application prospect.

The invention discloses a dendritic crystal growth numerical simulation method in a nickel-based alloy multi-pass surfacing process. The method comprises the following specific steps: defining the shape of a first surfacing welding pool, and establishing a dendrite nucleation and growth model and a solute distribution and diffusion model, secondly, defining the shape of a second surfacing weldingpool on the basis of the first surfacing welding, establishing a dendrite nucleation and growth model and a solute distribution and diffusion model, finally writing a computer program, inputting alloythermophysical parameters and various welding process parameters, importing simulation calculation software, and performing calculation to obtain a simulation result. Compared with experimental research, the method consumes less time and saves more maternal and labor resources, influences of microstructure morphology evolution, solute concentration distribution, welding current, welding voltage,thermal disturbance amplitude and other parameters on dendritic crystal growth in the nickel-based alloy multi-pass surfacing process can be simulated, and therefore a certain reference effect is achieved for selection and formulation of the nickel-based alloy multi-pass surfacing welding process.

The invention relates to the technical field of disaster recovery drilling, and discloses a disaster recovery technology for automatic drilling. An actual disaster recovery system is started to realize system and service recovery, simulation data and simulation service system operation are adopted to verify a drilling plan, and a specific process of disaster recovery automatic drilling needs to bedetermined before data disaster recovery is carried out. According to the disaster recovery technology for automatic drilling, mutual copying between data is carried out, two computers are adopted, mutual influence between data is reduced, it is ensured that the recovered data is imported into a brand-new database to guarantee accuracy of the data, the situation that errors are caused by the problem of data residues to disaster recovery drilling is avoided, the disaster recovery drilling has higher reference values, the processing process of the drilling is highly close to the processing process when a real disaster occurs, it is ensured that the disaster recovery drilling can play a role in work, and therefore automatic disaster recovery drilling plays a reference role in data maintenance.

The invention discloses a device for detecting rigidity of an automobile safety airbag. The device comprises an L-shaped operation platform (1), wherein two fixing blocks (2) are upward and downward arranged on the vertical surface of the L-shaped operation platform (1); a vertical slide rail (15) is arranged between the two fixing blocks (2); each of the fixing blocks (2) comprises an upper fixing block (3) and a lower fixing block (4); a smooth through hole penetrating through a screw rod (5) is formed on the upper fixing block (3); a circuit groove used for loading the bottom end of the screw rod (5) is formed on the upper surface of the lower fixing block (4); a moveable block (6) is in threaded connection with the screw rod (5); the moveable block (6) can slide on the vertical slide rail (15); the moveable block (6) is connected with a horizontal upper extruding plate (8) through a vertical rod (7). The device for detecting the rigidity of the automobile safety airbag provided by the invention has the advantages of high degree of automation, true and reliable detection result, strong universality and applicability to the detection for various airbags in the automobile.

The invention relates to the technical field of financial management, in particular to an expense control method based on financial budget management, and aims to solve the problem that financial resources cannot be finely distributed, assessed and controlled at present. The expense control method comprises the following steps: presetting a plurality of budget roles and budget authority corresponding to each budget role, wherein the budget roles at least comprise declaration personnel and a plurality of auditing personnel of different levels; enabling the declaration personnel to input budget information; enabling the auditor to perform business accounting on the budget information, and determine required cost control content after layer-by-layer approval, wherein the cost control content at least comprises control intensity, control time period, control stage and control dimension; and adjusting or adding the budget information according to the budget change rule. According to the invention, refined budgeting according to preset budgeting subject information of preset categories such as platforms, special items and projects is realized, and integrated budgeting can reflect budgeting conditions related to cash revenue and expenditure, operation achievements and financial conditions in a planning period in an omnibearing and detailed manner.

The invention discloses novel ignition mode application of a 300MW circulating fluidized bed boiler. Current domestic earliest 300MW circulating fluidized bed boiler units have gone into operation formany years, and due to the fact that fire coal quality is poor and fire coal is prone to being ignited, starting oil consumption of the units is high. The novel ignition mode application is characterized in that only a primary fan is started at the initial stage of ignition, other fans are shut down, and the primary air volume is adjusted, so that the boiler is in a micro bubble state. Accordingto the novel ignition mode, (1) the proper bed thickness and grain size are confirmed, wherein the material layer thickness is controlled to range from 800 mm to 900 mm; (2) cold state fluidization testing is carried out before starting, wherein bed materials are fed before the circulating fluidized bed boiler is started every time, the bed materials are conveyed into a hearth through a scraping plate coal feeder by starting a bed material system, and fluidization testing of the bed materials is carried out; (3) the temperature before ignition of the boiler is improved, wherein the pressure ofa heating heat source can be improved to 3.9 MPa from 0.8 MPa; (4) heat losses during oil feed are reduced, wherein the outlet pressure of a hearth is adjusted to range from 50 Pa to 100 Pa through an inlet and outlet valve of an induced draft fan; and (5) the proper bed temperature is selected to feed coal correctly. The novel ignition mode application of the 300MW circulating fluidized bed boiler is achieved.

The invention belongs to the technical field of motor processing, and particularly relates to a winding device and a winding method of a motor rotor iron core assembly. According to a traditional rotor iron core assembly winding processing method, workers are prone to fatigue in operation, the winding tightness is inconsistent, and the labor intensity is high. The winding device of the motor rotoriron core assembly comprises a winding module and a wire supply module, the winding module comprises a bottom rotating unit and a top rotating unit, and the bottom rotating unit can rotate around a vertical rotating shaft. The top rotating unit is installed at the upper portion of the bottom rotating unit and is provided with a horizontal rotating shaft, the number of rotation turns of the bottomrotating unit through a counter, and the wire supply module has damping force. According to the present invention, the product quality can be guaranteed, the technical level of manual operation is not relied on, the manual counting of workers is not needed, the consistency is extremely high, the traditional winding method is effectively improved, the labor intensity of the workers is greatly relieved, and the working efficiency is improved.

The invention discloses a skull surface fixing cap, wherein the skull surface fixing cap comprises a brimless round cap part, a jaw fastening strap and a convex part which extends to eyebrows, wherein two sides of the brimless round cap part are connected to two ends of the jaw fastening strap; the convex part is integrally connected to one side of the outer edge of the brimless round cap part, and the convex part is located between two ends of the jaw fastening strap; a first convex device is arranged at the convex part and the first convex device is aligned with the eyebrows of a human body; and a second convex part is arranged at the lower side of the jaw fastening strap and the second convex device is aligned to chin of the human body or the front side of a trachea. According to the skull surface fixing cap provided by the invention, a steel ball serves as a reference substance, and the steel ball, which is sutured in the fixing cap, is kept fixedly; and in addition, the fixing cap is recyclable.

The invention discloses an acrobystia cutting anastomat with an insurance mechanism, and belongs to the field of acrobystia cutting. The acrobystia cutting anastomat comprises a clock-shaped hood andan insurance protection mechanism, wherein a protection plug is arranged at the top end of the clock-shaped hood; a nail bin sleeve is connected to one end of the clock-shaped hood; a thickened pipe sleeve is mounted at the bottom end of the nail bin sleeve; a moving shaft is arranged between the thickened pipe sleeve and the outer wall of the middle part of the nail bin sleeve; a percussion handle is connected to one end of the moving shaft; a supporting spring is fixed to the inner wall of the percussion handle; an adjusting knob is arranged at the top end of the thickening pipe sleeve; andthe insurance protecting mechanism is located on the outer wall of one end of the thickening pipe sleeve. According to the acrobystia cutting anastomat disclosed by the invention, the elastic effect of the supporting spring is achieved, so that when being gripped, the percussion handle is convenient to loose after positioning, and the percussion handle is stable; a supporting clamping block on theinsurance can be used for supporting and clamping the middle part of the percussion handle to achieve the effect of insurance; and the insurance can be removed through rotating the supporting clamping block by 90 degrees, and the operation is convenient.

The invention relates to a method for evaluating performances of a cloud platform based on a performance model. Interfaces of all kinds of cloud systems are abstracted and summarized; the complex cloud resource operation logic is packaged, so that cloud resources are automatically distributed and managed while being tested; furthermore, a lot of experimental data can be analyzed and read through a performance evaluation module obtained in a brand-new modelling manner; all aspects of performances of the tested cloud system are analyzed in an expansible manner; the performance model when the scale of the tested cloud system is changed is concluded; the conditions of the cloud system, such as performance change tendencies and peak values, under corresponding application scenes can be finally obtained more intuitively; and thus, the purposes of evaluating the performances of the cloud system and guiding deployment are achieved.

The invention relates to a testing mechanism used for testing a main pin positioning angle during dynamic driving of a vehicle. The testing mechanism comprises a laser transmission device, three laser induction columns, and a vehicle wheel. The laser transmission device is fixedly disposed on the center of the outer side of the wheel. The three laser induction columns are fixedly disposed on the vehicle body. The side surface of the vehicle provided with the laser induction columns and the wheel provided with the laser transmission device are the same side, and the side surface of the vehicle is the side edge of the vehicle body of the wheel. The laser transmitted by the laser transmission device is projected on the three laser induction columns on the vehicle body, and the three laser induction columns are in the shape of an equilateral triangle. The testing mechanism is advantageous in that the changing states of the wheel toe-in and the camber angle with respect to the vehicle body during the dynamic driving of the vehicle can be tested by adopting the optical principle and the triangle relation via the laser projection, and the important reference can be provided for the development of the kinematics of the suspension system and the toe-in camber positioning development of the vehicle.

The invention relates to the technical field of ping-pong ball manufacturing and detection. The invention further discloses equipment for manufacturing the ping-pong ball through wind power balance detection. The equipment comprises a tank body, a gear set is movably connected to the interior of the groove body; fan wheels are movably connected to two sides of the gear set; the top of the gear setis movably connected with a screw rod; the top of the screw rod is movably connected with a roller; an air inlet is formed in the joint of the screw rod and the gear set; a cutter is movably connected to the surface of the gear set, an air spring is movably connected to the bottom of the cutter, a windward plate is movably connected to the position, located on the left side of the fan wheel, in the groove body, a spring rod is movably connected to the surface of the windward plate, a pressing plate is movably connected to the end, away from the windward plate, of the spring rod, and a triggerrod is movably connected in the pressing plate. Therefore, the driving force of the gear set can be increased or decreased, the effect of adjusting the size of the table tennis ball is achieved, andthe effect of detecting the diameter, radian and light transmittance of the table tennis ball and taking rescue measures for table tennis balls with different sizes is achieved.

The invention discloses an MBR (membrane bioreactor) wastewater treatment process, comprising the steps of I, subjecting a membrane component to hydrophilicity treatment; II, fixing the membrane component to an aeration tank, and stably placing the membrane component perpendicular to the bottom of the aeration tank; III, filtering large particulate impurities from wastewater, adding water, activated carbon and activated sludge into the aeration tank in a ratio of 3:0.5:1 or 3:0.8:1.2; IV, aerating for 3-4 h, extracting wastewater, adding a reducing agent into the wastewater; V, adding a neutralizer into the reduced water in a ratio of the water to the neutralizer being 3:1, and allowing to neutralize for 3-4 h; VI, allowing the neutralized water to naturally settle in a settling tank for 1-1.5 h; VII, extracting clear supernate, adding an oxidant into the clear supernate, and allowing to oxidize for 1-2 h before emission. The process herein is effective in treating MBR wastewater to prevent secondary pollution.

Provided is a supervised classification method combining multi-spectral mixed pixel linear decomposition. The method comprises the following steps: selecting a research area, and obtaining image data; performing image preprocessing on the image data; carrying out mixed pixel linear decomposition on the preprocessed image; collecting training samples to supervise and classify the images after mixed pixel decomposition; evaluating classification accuracy. According to the method, under the condition that the precision is guaranteed, selection of training samples is reduced, fine and linear ground objects are effectively separated, the working efficiency is improved, and a reference effect is achieved on recognition and analysis of the fine ground objects to a certain extent.