200results about How to "Guaranteed operability" patented technology

The invention provides a data asset multi-dimensional assessment method and system based on a block chain and machine learning, an assessment index system covering dimensions such as data quality, value, risk and security is constructed, a block chain technology is adopted to carry out assessment process and result evidence storage, a machine learning model is introduced to dynamically optimize index weights, and the assessment efficiency is improved. And a data asset marketization pricing mechanism is explored and formed. According to the method, the problems that an existing data asset evaluation method is single in dimension, high in subjectivity and lack of credibility are solved, scientific evaluation, marketization pricing and credible publication of the data asset value are achieved, important reference is provided for data element circulation, and the method has great significance in promoting prosperous development of the data element market.

The invention relates to a three-dimensional visual operation and maintenance management system and method for building facilities, and the system comprises an equipment facility three-dimensional modeling module which carries out the three-dimensional modeling through employing the BIM technology based on the original design data of the equipment facilities, converts a structure into a detailed three-dimensional space, carries out the real-time rendering and display of a three-dimensional model through employing a visual device, and achieves the real-time operation and maintenance of the equipment facilities. Meanwhile, a long-short-term memory artificial neural network is adopted for model optimization, and a three-dimensional model data set is generated. According to the invention, the long-short-term memory artificial neural network is adopted to optimize the three-dimensional model, so that the accuracy and detail integrity of the three-dimensional model in a complex building environment are improved, fault diagnosis and response measure formulation are carried out, equipment faults and potential safety hazards are identified and analyzed in real time, a rapid and accurate response scheme is provided, and the method is suitable for popularization and application. The safety and reliability of the system are improved, a collision detection and region division optimization method is used, and comprehensive improvement from model optimization and resource dynamic configuration to fault diagnosis and safety analysis is achieved.

The invention discloses a distributed system processing method based on an optimized Raft algorithm and a program product, and the method comprises the steps: building a unique transaction ID for an operation transaction of a user, and enabling the transaction ID to serve as an identifier of subsequent operation; when the transaction is executed, the corresponding API function carries the transaction ID to be called together; according to the transaction ID, allocating an independent cache region for the corresponding transaction to store all operations during the transaction period; and after the transaction is completed, persisting the data in the cache region into the database at one time, and clearing logs related to the transaction. A unique transaction ID is established for an operation transaction of a user to serve as an identifier of subsequent operation, so that operation atomicity and consistency in the transaction are ensured; all operations are completed in the cache region, so that frequent hard disk operations are avoided, and the processing speed is greatly improved; the data in the cache is persisted into the database at one time, so that the expenditure of persistence one by one is reduced, logs related to the transaction are cleared in time, memory waste is prevented, and efficient operation of the system is kept.

The invention provides a beam string structure optimization method for reinforcing a large-span steel corridor, and belongs to the technical field of building construction.The method comprises the steps that firstly, a three-dimensional finite element model is established, the three-dimensional finite element model comprises an upper steel corridor, vertical supporting rods and inhaul cables, and boundary conditions and dead load and live load are set; performing nonlinear analysis to obtain an initial deflection value and a stress value, and judging whether reinforcement requirements are met or not. And if not, adjusting the length of the supporting rod and the prestress of the inhaul cable, and repeatedly analyzing and calculating until the requirements are met. Then, the structural deflection serves as a control parameter, the strain of the inhaul cable serves as a response parameter, cable force optimization calculation is conducted through an SAP2000CSiLoadOptimizer toolbox, and an optimized strain value of the inhaul cable is obtained. And finally, according to an optimization result, a final cable force optimization scheme is obtained through back-stepping, and specific process parameters of the beam string structure for reinforcing the large-span steel corridor are determined. The problem that an existing method cannot comprehensively reflect the nonlinear mechanical property of the structure is solved.

The invention relates to the technical field of airport wireless communication, in particular to a 5G AeroMACS base station communication and positioning integrated method, which comprises the following steps: establishing an airport scene communication and navigation integrated system comprising a 5G AeroMACS multi-antenna base station, a plurality of single-antenna communication terminals and a plurality of mobile terminals to be positioned; acquiring a sensing positioning parameter estimator of the to-be-positioned mobile terminal according to the echo signal; obtaining an estimation error lower bound of the sensing positioning parameter based on the sensing positioning parameter estimator; based on the channel characteristics of communication between the 5G AeroMACS multi-antenna base station and the single-antenna communication terminal, minimizing and optimizing the lower bound of the estimation error to obtain an optimal beam forming parameter; and controlling the 5G AeroMACS multi-antenna base station to send a signal by adopting the optimal beam forming parameter so as to complete communication and positioning between the 5G AeroMACS multi-antenna base station and the terminal. According to the invention, high-precision real-time navigation and efficient communication of the high-dynamic terminal on the airport scene can be realized.

The invention relates to a method for extracting spermidine from a natural source. The method comprises the following steps: (1) extracting a natural source substance to obtain a crude extract; and (2) carrying out hydrophilic interaction liquid chromatography purification on the crude extract to obtain spermidine. According to the method disclosed by the invention, the extract from a natural source is efficiently and accurately separated by utilizing the hydrophilic interaction liquid chromatography, so that the high-purity spermidine with a wide source is obtained to meet the requirement on high-quality spermidine.

The invention belongs to the technical field of federal learning, and discloses an intelligent model training method and system for distributed equipment collaborative optimization and a storage medium, and the algorithm comprises the steps that a client receives an original model sent by a server, and completes an initialization task of the model; the client carries out local training on the received initialization model based on the local data set to obtain a local training model, all basic parameters of local training are obtained through calculation, and a memory-free SR1 matrix is generated; the server randomly extracts part of clients, and the selected clients upload local model training parameters of the clients; updating an ADMM direction, and updating an internal problem; solving a variable-scale near-end mapping problem to obtain a near-end direction, and solving an external problem; and updating the global model according to the obtained near-end direction until the model training is completed. Under the condition that statistical heterogeneity exists, compared with an existing first-order composite optimization algorithm, the algorithm has the advantages that the convergence speed is higher, the convergence condition of the algorithm can be met more quickly, and progressive convergence is achieved.

The invention discloses a flow identification and association method based on a multi-classification neural network model, and an anti-association analysis method and device, and belongs to the field of network security, and the method comprises the steps: extracting non-association white noise from non-association flow through a mode of training the multi-classification neural network model; input traffic is processed by using a multi-classification neural network, an anonymous communication network category to which to-be-associated traffic belongs and a feature distance between the to-be-associated traffic and non-associated white noise are obtained at the same time, and then traffic identification and traffic association results are obtained at the same time. According to the method, the technical problem that the existing traffic identification and association model and algorithm cannot execute traffic identification and traffic association at the same time is solved, the technical problem that the existing traffic identification and association model and algorithm are not universal when executing traffic association tasks for different anonymous communication networks is solved, and meanwhile, a novel and universal technical scheme for anti-association analysis of the anonymous communication networks is provided.

The invention belongs to the technical field of lunar exploration space, and particularly relates to a manned lunar rover driving operation platform. The platform comprises a central processing module, a main display screen, an operation panel, a foldable force feedback control module, an auxiliary control panel, a sensing module and a voice control module. A comfortable and intelligent driving operation space is created for a lunar rover driver, intelligent perception and panoramic display of the surrounding lunar surface environment are provided, the driving experience is optimized, and the reliability and safety of driving operation are guaranteed.

The invention discloses a traditional Chinese medicine decoction piece stir-frying process which comprises the following steps: step 1, pretreatment of medicinal materials: firstly, soaking traditional Chinese medicines needing to be stir-fried to remove impurities on the outer surfaces of the traditional Chinese medicines; step 2, drying the medicinal materials, namely drying the soaked traditional Chinese medicines; step 3, slicing the medicinal materials, drying the sliced traditional Chinese medicines, and cutting the dried traditional Chinese medicines into slices; 4, medicinal material stir-frying, wherein the traditional Chinese medicine slices are put into a stir-frying device to be stir-fried; and step 5, screening the medicinal materials, taking out the stir-fried traditional Chinese medicine slices, and screening qualified traditional Chinese medicine decoction pieces. Through setting of the process steps of slicing, screening and the like, traditional Chinese medicines with different sizes can be subjected to classified blasting moxibustion, so that the operability of the blasting moxibustion time of the traditional Chinese medicines is effectively ensured, and the quality of the traditional Chinese medicine decoction pieces is improved.

The invention relates to the technical field of data management, in particular to a basic data intelligent management method and system, and the method comprises the following steps: a superior leader creates a corresponding ledger according to a data collection requirement, and appoints the basic attributes of the ledger, including a department to which the ledger belongs, an update period and a division to which the ledger belongs; the ledger creator distributes ledger permissions to data leaders and basic level individuals of all departments through permission management and distribution; a base-level user receives a standing book filling prompt and can select single filling or batch data import; the base data intelligent management method and system provided by the invention have the beneficial effects that a superior leader can flexibly create a corresponding ledger according to a specific ledger task requirement. According to the method, the data leader is endowed with the authority after being created, the authority can be accurately allocated to basic-level individual users by the data leader through an authority allocation mechanism, and the process ensures the security of the data and the specificity of operation and also ensures the orderliness of information flow.

The invention discloses a ship seawater valve box and a ship, the seawater valve box structure comprises a plurality of hierarchical areas which are arranged in the seawater valve box and between a grating and a seawater inlet short pipe, and each area is provided with a seawater through hole for communication. And the vent pipes are arranged in each layer area. Aiming at the design thought of the seawater valve box for reducing bubble gathering, the partition plate is arranged in the seawater valve box to standardize the flow direction of seawater, the path of bubbles entering the seawater valve box and reaching a seawater pump suction port is prolonged, and bubble gathering is reduced. The ventilation degree is increased by additionally arranging the ventilation pipes above the different partition plates, bubbles are discharged into the atmosphere as much as possible by increasing the number of the ventilation pipes or increasing the pipe diameters of the ventilation pipes, the operation defects of seawater cooling systems of ro-ro passenger ships and container ships are effectively overcome, stable operation of the ships is facilitated, and the safety coefficient is increased.

The invention relates to a stator winding potting tool, which comprises a stator, a core mold, an upper mold, a lower mold, a sealing ring, a potting head, a rotating shaft, a gear transmission device, a motor, a UV lamp, a heating coil and the like, and is characterized in that the sealing ring is arranged between the upper mold and the lower mold, so that effective sealing between the stator and the molds is ensured, and glue leakage is prevented; bubbles in the stator and in the glue are extracted through vacuum equipment, and it is ensured that the glue evenly fills stator winding gaps; the motor drives the stator to rotate to generate centrifugal force, so that the glue is uniformly distributed in each gap of the stator winding; a UV lamp is arranged in the core mold and used for rapidly curing glue, the outer barrel is provided with a heating coil, stress generated in the glue curing process is eliminated through heating, efficient and uniform glue distribution, bubble elimination and stress elimination are achieved through the synergistic effect of centrifugal force, vacuum and heating, the stator winding potting quality and efficiency are improved, and the production efficiency is improved. The method is suitable for stator winding potting operation with high requirements on electrical insulation performance.

The invention discloses a single-classification neural network model generation method, a traffic association method and an anti-association analysis method and device, and belongs to the field of network security, and the single-classification neural network model generation method comprises the steps: S1, constructing a communication data set containing multiple types of anonymous communication traffic; s2, arranging the communication data set into non-associated traffic and associated traffic; s3, constructing a structured non-associated data set according to the non-associated traffic information; s4, selecting a single-classification neural network model for a traffic association problem; and S5, training a single-classification neural network model based on the non-associated data set. According to the invention, the technical problem that the existing flow association model and algorithm are not universal when the flow association task is executed for different anonymous communication networks is solved; meanwhile, the invention provides a novel and universal technical scheme for resisting correlation analysis of the anonymous communication network.

The utility model provides a novel non-aqueous reaction high polymer material forming device which comprises an upper top cover, two side forming components and a lower base, the number of the side forming components is two, and the two side forming components can be assembled and connected to form a cylindrical cavity for foaming and forming a high polymer; the upper top cover and the lower base can be assembled on the top surface and the bottom surface of the cylindrical cavity respectively and are used for limiting the foaming direction of the high polymer; the outer side of the side forming component is provided with a pressing threaded frame and a door holder clamp locker, wherein the pressing threaded frame and the door holder clamp locker are used for reinforcing the upper top cover. The device has the beneficial effects that the overall structural design is reasonable, the operation is simple, the carrying is convenient, the simplicity and operability of high polymer foaming forming are ensured, a prepared high polymer sample does not need to be cut subsequently, and the test accuracy is improved.

The present invention provides a bottom-up intelligent identification method for land space based on grid, including: step 1, obtaining study area data and reclassifying point of interest data; step 2, identifying the initial land use type based on remote sensing image features; step 3, using the kernel density estimation algorithm to perform spatial estimation on the reclassified point of interest data to obtain the subdivided land use type; step 4, constructing a main function grid based on the subdivided land use type and determining the optimal scale of the grid, identifying the main function of the grid, and obtaining an estimated main function grid; step 5, using an unsupervised classification algorithm to obtain the initial land space pattern; step 6, performing spatial overlay analysis on the estimated main function grid and the initial land space pattern to obtain the final land space pattern. This application effectively solves the current problem of difficulty in unifying land space identification, monitoring and management, and lays the foundation for digital governance of land space.

The invention discloses an auxiliary positioning device for minimally invasive spine surgery, and particularly relates to the technical field of medical instruments, the auxiliary positioning device comprises a B positioning needle, a positioning rod, a depth limiting sleeve, a positioner fixing frame, a positioner adjusting frame, a positioning needle guide rod, an A positioning needle, a guide wire and a hollow positioning rod. According to the invention, all the components cooperate with each other, so that the field-of-view area intersection point of the surgical instrument and the endoscope can be quickly and accurately found. All the components are tightly connected, functions are integrated, meanwhile, the advantages of precise positioning, stable supporting and reliable protection are achieved, the number of times of fluoroscopy is reduced, X-ray harm to doctors and patients is reduced, the precision of minimally invasive spine surgery is effectively improved, tissue damage of the patients is reduced, surgical risks are reduced, surgical efficiency is improved, and meanwhile postoperative recovery of the patients is facilitated.

The technical field of airport wireless communication specifically relates to a 5G AeroMACS base station communication and positioning integration method, comprising: establishing an airport scene communication and navigation integration system, including a 5G AeroMACS multi-antenna base station, a plurality of single-antenna communication terminals and a plurality of mobile terminals to be positioned; obtaining a perception positioning parameter estimation amount of the mobile terminal to be positioned according to an echo signal; obtaining an estimation error lower bound of the perception positioning parameter based on the perception positioning parameter estimation amount; minimizing and optimizing the estimation error lower bound based on the channel characteristics of the communication between the 5G AeroMACS multi-antenna base station and the single-antenna communication terminal to obtain an optimal beamforming parameter; using the optimal beamforming parameter to control the 5G AeroMACS multi-antenna base station to send a signal, and completing the communication and positioning between the 5G AeroMACS multi-antenna base station and the terminal; the present invention can realize high-precision real-time navigation and efficient communication of high-dynamic terminals on the airport scene.

This utility model discloses a user-friendly food processing machine, comprising a main unit with a knob assembly, the knob assembly including a knob bracket, which is disposed at a mounting hole and fixed to the inner wall of the machine housing; a control board, mounted on the knob bracket, with buttons and an encoder surrounding the buttons on the side facing the mounting hole; a display module, including a button bracket, a display board, a display bracket, and a display panel arranged sequentially from the inside out, the button bracket sliding axially to trigger the buttons, the display board electrically connected to the control board and having a display unit on the outward-facing side, the display bracket fitting against the outer side of the display board, the display bracket having a light-transmitting groove corresponding to the display unit, and the display panel fitting against the outer side of the display bracket to block the light-transmitting groove; and a knob, sleeved on the outer periphery of the display module and connected to the encoder to operate the encoder. The display module is directly disposed within the knob to display the corresponding functions, facilitating user observation and operation.

The invention relates to the technical field of security authentication, and discloses an information security and data security authentication and evaluation system and method, and the method comprises the steps: a user sets a password through a password setting module, and judges the security of the password; judging whether the initial password is the same as the password in the existing password set or not through a first strategy, and if yes, prompting the user to reset the password; if not, the similarity of the passwords is judged through a second strategy, and the security of the passwords is further ensured; the identity verification module is used for judging whether the user has the right to access information and data in the database or not, and judging whether a password input by the user is matched with or similar to a password stored in the database or not by adopting a third strategy; according to the method, the levels of password management and data security protection are effectively improved, and the security in the information storage and access process is ensured.

The utility model discloses a clamping device for workpiece machining. The clamping device comprises V-shaped iron, a frame-shaped frame is arranged above the V-shaped iron, a first screw hole is vertically formed in a cross beam of the frame-shaped frame, a screw rod is connected into the first screw hole in a threaded mode, a transverse plate is connected to the bottom end of the screw rod in a rotating mode, and a rubber pressing block is installed on the bottom wall of the transverse plate. The utility model has the beneficial effects that the workpiece can be clamped on the V-shaped groove of the V-shaped iron through the rubber pressing block, so that the workpiece is prevented from randomly moving or rotating due to the influence of external force, the accurate alignment or scribing operation of the workpiece is ensured, and the overall processing efficiency is improved.

The utility model relates to the technical field of grinding wheels, and discloses a superhard grinding wheel structure based on a composite structure, which solves the problems that an existing grinding wheel is large in dust during grinding, seriously affects the operation sight and the body health of workers and is poor in using effect, and comprises a fixed sleeve, a threaded groove is formed in the inner wall of the fixed sleeve, and the threaded groove is in threaded connection with the fixed sleeve. A grinding wheel body is fixedly installed on the surface of the fixing sleeve, a superhard grinding layer is fixedly installed on the surface of the grinding wheel body, a dust collecting groove is formed in the middle of the front side of the grinding wheel body, a first annular groove is formed in the front side of the grinding wheel body, and a second annular groove is formed in the front side of the grinding wheel body and located on the outer side of the first annular groove. A plurality of first ash inlet holes are annularly formed in the bottom of the interior of the first annular groove at equal intervals, and a plurality of second ash inlet holes are annularly formed in the bottom of the interior of the second annular groove at equal intervals; according to the grinding wheel, dust generated during grinding is small, the operation sight and body health of workers are guaranteed, and the use effect is very good.

The invention discloses a three-channel integrated brake system, which comprises a hydraulic oil tank, the hydraulic oil tank is connected with the diagnostic valve and connected with the main cylinder through the diagnostic valve, the output end of the main cylinder is connected with the main cylinder isolating valve, the main cylinder isolating valve controls brake circuits of two axles of an automobile respectively, and the brake circuits comprise the first brake circuit and the second brake circuit. The number of the main cylinder isolating valves is two, and the brake circuit is provided with three pressure increasing valves and three pressure reducing valves. And at least one pressure increasing valve is arranged on the first brake loop and the second brake loop. A brake system is designed, a brake loop of an automobile is adjusted through a main cylinder isolating valve, three pressure increasing valves and three pressure reducing valves, brake control over automobile wheel cylinders is achieved, and the requirements for shortening the brake distance and guaranteeing steering operability and driving stability in the brake process can be met under most conditions; and compared with four channels, the number of required electromagnetic valves and the like can be reduced, so that the production cost is further reduced.

The invention provides an electric pole assemblage vertical drilling device and a control method.The vertical drilling device comprises a rotary platform, a large arm, a small arm and a drilling device which are sequentially hinged, a first working oil cylinder is arranged between the rotary platform and the large arm, a second working oil cylinder is arranged between the large arm and the small arm, and the drilling device is arranged on the rotary platform. A working oil cylinder III is arranged between the small arm and the drilling device; according to the control method, the first working oil cylinder or the second working oil cylinder is selected as the driving oil cylinder, and the remaining oil cylinders are cooperatively controlled along with the driving oil cylinder, so that the drill rod of the drilling device always keeps vertically downward movement, the operability and reliability of drilling are guaranteed, the control complexity of the vertical drilling device is effectively reduced, and the drilling efficiency is improved. The construction efficiency and the perpendicularity of holes in the drilling process can be effectively improved, and the drilling deviation phenomenon is prevented.

The present invention relates to a train screening method, system, device and storage medium of a TACS system. The method realizes the confirmation of the train occupancy status of a line section by automatic train screening and manual train screening. For the main line section, automatic train screening is performed by a communication train, and for the non-main line section, manual train screening is performed by a local operator button confirmation plus central dispatch authorization. Compared with the prior art, the present invention has the advantages of greatly reducing the number of trackside equipment, construction cost and maintenance workload of the system, shortening the cycle of old line reconstruction and new line construction, and improving the competitiveness and flexibility of the system.

This application discloses a method, apparatus, device, and storage medium for intelligent compliance management of fund accounts, relating to the field of financial technology. The method includes: acquiring initial configuration data and personalized fund processing rules, including interface authentication keys, revenue sharing rules, and compliance verification rules; accessing various fund channels based on the interface authentication keys to obtain standardized deposit data; constructing a virtual account system according to the revenue sharing rules, establishing a mapping relationship between virtual accounts and physical bank accounts to ensure that each business entity has a virtual account; performing compliance verification by combining standardized deposit data, mapping relationships, and various rules, and executing fund clearing, fee deduction, and subsidy disbursement to generate fund operation results; reconciling the fund operation results with bank transaction data to generate reconciliation records, and storing relevant operation logs as evidence to complete the entire process of compliance management. This application achieves fund collection, real-time monitoring, automatic revenue sharing under configurable rules, and compliance risk control.

The invention relates to the technical field of automobile pedal testing, and discloses an intelligent networked automobile pedal testing device which comprises a shell and a base, the base is arranged at the bottom of the shell, a fixing support is fixedly connected to the surface of the shell, a groove is formed in the top of the fixing support, and a supporting rod is fixedly connected to the groove in the top of the fixing support. A pedal plate is fixedly connected to the bottom end of the supporting rod, and a sensor is fixedly connected to the upper surface of the pedal plate, so that the problem that a test result is lack of objectivity due to the influence of subjective consciousness and individual differences of testers during manual testing is avoided, and the problems of fatigue, inattention and the like in the testing process are solved; according to the invention, the test result is not accurate due to the fact that the test device needs to be manually treaded for testing, manual operation and errors are reduced, the labor cost and risks are reduced, pressure can be flexibly adjusted for testing, real use conditions can be stably simulated, and the accuracy and reliability of the test result are ensured.

The invention discloses a method for determining the oil pipe lowering time of a shale gas well. The method comprises the steps that firstly, shaft pressure drops generated when a shale gas updip well and a shale gas downdip well are produced through a sleeve and an oil pipe are calculated respectively; 2, drawing an updip well three-dimensional curved surface drawing and a downdip well three-dimensional curved surface drawing which have the same coordinate system; thirdly, preliminary reference charts of the oil pipe lowering time of the updip well and the downdip well under any wellhead pressure are determined respectively; 4, determining a preliminary reference chart of the oil pipe descending time of the updip well and the downdip well under different wellhead pressures; fifthly, final reference charts of the oil pipe descending time of the updip well and the downdip well are obtained through combination; and 6, determining the oil pipe descending time according to the final reference chart of the oil pipe descending time. According to the method, the oil pipe descending time of any shale gas well can be determined, the technical problems that the oil pipe intervention time of the shale gas well is difficult to determine and a clear guidance method is lacked at present are solved, and important technical support can be provided for developers to accurately judge the oil pipe descending time of the gas well.

The application relates to the field of municipal roads and water supply and drainage systems, and discloses an assembled drainage device for municipal roads, which comprises a drainage ditch body, a support frame, a drainage cover plate, a collecting frame, a connecting rod trigger mechanism and a limiting warning block. The support frame under the drainage cover plate is in contact with the drainage ditch body but is not connected with the drainage ditch body, and the two are in a decoupled state capable of relatively sliding. When the ground base is settled, the support frame is overlapped on the road surface and does not sink with the drainage ditch body. The drainage ditch body sinks and pulls down the connecting rod trigger mechanism, so that the inside of the connecting rod trigger mechanism is forced to rotate, and then the limiting warning block is pushed upward to expose the warning piece on the road surface, early visual early warning in a pure mechanical mode is realized, in addition, the inner wall of a plug-in groove at the plug-in joint of adjacent drainage ditch bodies is provided with an inflatable sealing ring made of water-swelling rubber material. When a gap is generated due to settlement and pulling, the inflatable sealing ring is self-adaptively filled and sealed by water swelling. The application effectively solves the technical defects that the existing rigid device cannot give early warning of settlement and joint water leakage.

The invention discloses a geological operation-oriented operator mental fatigue real-time monitoring method and device. The geological operation-oriented operator mental fatigue real-time monitoring method comprises the following steps: S1, determining the layout of a measured target and a millimeter wave radar; s2, millimeter wave radar intermediate frequency echoes are obtained, after a measured target is positioned through a distance domain, complex phases of corresponding distance information are extracted, phase unwrapping and steady state correction are carried out, and a continuous phase sequence representing chest micrometric displacement is obtained; s3, IIR digital band-pass filtering is applied to the continuous phase sequence, and the continuous phase sequence is decoupled into a breathing channel and a heartbeat channel; s4, extracting time domain and frequency domain features of heart rate variability (HRV) and respiratory rhythm from the respiratory channel and the heartbeat channel in the sliding time window to form a multi-dimensional vital sign feature vector set; s5, taking the multi-dimensional vital sign feature vector set as input, performing incremental learning by using OS-ELM, and judging and outputting a mental fatigue level in real time; s6, implementing hierarchical risk management, and triggering early warning and intervention measures; and S7, locally storing and visually displaying the fatigue level and the event log, and synchronizing the fatigue level and the event log to a remote management platform.