156 results about "Machine simulation" patented technology

The invention discloses a power grid transient process deduction method based on digital twinning, electronic equipment and a medium, and the method comprises the steps: building a digital twinning simulation model based on a new energy single-machine simulation model and a three-dimensional field station virtual model, and outputting a virtual value by the digital twinning simulation model; collecting core parameters in a monitoring period; calculating the deviation ratio of the physical value and the virtual value of the physical station based on the core parameter; and adjusting the transient process control strategy based on an adjustment object and the deviation rate, wherein the adjustment object comprises a virtual value, a core parameter, a scene parameter and a model control mode. The digital twinborn model can be calibrated in real time through deviation ratio closed-loop correction of a physical value and a virtual value, it can be ensured that simulation of the transient process of the power grid is highly consistent with the physical reality, and the precision and reliability guarantee of a deduction result is improved.

The invention provides an energy storage converter optimization control method based on a fusion genetic-particle swarm algorithm and a related device, and belongs to the technical field of oscillation suppression of energy storage converters. According to the method, a virtual synchronous machine simulation model is established, a second-order motion equation of the synchronous machine is analyzed to obtain a selection principle of rotational inertia and a damping coefficient, then a related control strategy function is constructed, and parameters of the control strategy function are optimized by using a fusion genetic-particle swarm optimization algorithm. Differential adjustment coefficient configuration can be implemented according to specific requirements of different power system scenes on overshoot and response time, the control strategy strain capacity is effectively improved, and the system instability risk is reduced; and meanwhile, the global search capability of the genetic algorithm and the rapid convergence characteristic of the particle swarm algorithm are fully exerted, the function parameters of the control strategy are accurately optimized, the stable regulation and control capability of the energy storage converter in the power system is enhanced, the low-frequency oscillation of the virtual synchronous machine is effectively suppressed, and the stability and dynamic regulation performance of the energy storage converter are improved.

The invention provides a five-axis numerical control machine tool processing simulation method and system, and the method comprises the steps: obtaining a three-dimensional model and key parameters inputted by a user, and building a structure tree model of a five-axis numerical control machine tool based on the three-dimensional model and the key parameters; a machining file of the five-axis numerical control machine tool is obtained and analyzed, and a machining path and technological parameters of the five-axis numerical control machine tool are obtained; based on the key parameters and the machining path, motion stroke detection of the five-axis numerical control machine tool is carried out; based on the three-dimensional model, the structure tree model, the processing path and the process parameters, collision detection of the five-axis numerical control machine tool is carried out; and displaying the three-dimensional model and the obtained motion stroke detection result and collision detection result. By means of the method, simulation of the machining process of the five-axis numerical control machine tool can be conveniently achieved, and therefore the universality, efficiency and accuracy of machining simulation of the five-axis numerical control machine tool are improved.

The invention relates to an implicit voxel Boolean subtraction optimization method in five-axis machining simulation. According to the method, an implicit tool geometric expression model based on a symbolic distance function is constructed, and a dynamic voxel modeling technology with a layered structure is combined, so that efficient interactive modeling of a material removal process between a tool and a workpiece is realized. The whole process of the method comprises four key stages of spatial positioning, vertex interference detection, projection correction and grid reconstruction, and can cope with geometric modeling challenges caused by continuous motion of a multi-degree-of-freedom and multi-attitude cutter. A dynamic block loading mechanism and a local state synchronization strategy are introduced, so that the real-time response capability of Boolean subtraction operation under complex working conditions is effectively improved, and meanwhile, the continuity and integrity of machining geometric boundaries are kept. The method has good expandability and robustness, obviously reduces space-time complexity of calculation on the basis of keeping geometric surface continuity and topological correctness, realizes millisecond-level response time in an experiment, and has a good application prospect. The method is widely applied to virtual machining simulation and intelligent process verification systems of complex free-form surface parts such as aero-engine blades and automobile structural parts.

The invention discloses a complete machine variable-dimension simulation method based on a circumferential average flow model, belongs to the technical field of aero-engine numerical simulation and multi-scale modeling, and solves the problem that complete machine simulation efficiency and local flow detail precision are difficult to consider at the same time in the prior art. And traditional full-three-dimensional computing is too high in resource consumption and cannot quickly evaluate the performance of the whole machine. According to the method, a zero-dimensional complete machine and component two-dimensional model of the aero-engine is firstly established, dimensionality reduction is carried out by using a circumferential average N-S equation, the two-dimensional model is embedded into the zero-dimensional model, an equivalent replacement variable reconstruction equation set is solved, synchronous convergence of the complete machine and component models is realized, and simulation precision and efficiency are improved. According to the method, a full coupling mode is adopted, two-dimensional dimension reduction modeling is combined, minute-level convergence is achieved, the simulation error is not larger than 5%, the simulation precision is improved, the calculation efficiency is improved, rich S2 flow field information can be provided, and the research and development cost and period are reduced.

The invention particularly relates to a discharge machining simulation control system for a nuclear power plant in a high-radiation boron-containing water environment, which belongs to the technical field of special maintenance in the high-radiation environment of the nuclear power plant and comprises a man-machine interaction system, a discharge machining control system and subsystems. Each subsystem comprises a pulse power supply system, a servo power system, a washing system, a purification system, a grounding system and a tool system; the man-machine interaction system is used for man-machine interaction and displaying the discharge machining implementation data fed back by the subsystems; the electric discharge machining control system is used for generating an electric discharge machining instruction according to the man-machine interaction information and controlling the subsystems to cooperate to perform electric discharge machining work; and each subsystem is used for implementing electric discharge machining work according to the electric discharge machining instruction and feeding back electric discharge machining implementation data. According to the invention, simulation control of discharge processing in the high-radiation boron-containing water environment of the nuclear power plant is realized.

The invention relates to the technical field of intelligent numerical control machining, in particular to a Tri-dexel model efficient cutting simulation method based on octree acceleration, and the method comprises the steps: firstly selecting a three-dimensional model needing Tri-dexel processing; performing grid division on the three-dimensional model to obtain a plurality of triangular grid units, and generating a Dexcel ray according to the three-dimensional model; triangular patches in the triangular mesh are stored in an octree form; grouping the Dexcel rays according to the depth of the octree, and searching patches possibly intersected with the Dexcel rays in the octree by using the Dexcel rays for intersection; performing de-duplication processing on the repeated intersection points; the intersection points of the same Dexel ray are connected in pairs, and finally a Tri-dexel model is generated; and then the Tri-dexel model of the workpiece cut by the tool can be obtained through the one-dimensional Boolean operation of the Dexcel line segment between the workpiece and the Tri-dexel model of the tool. Through verification, the Tri-dexel efficiency of the complex three-dimensional model in machining simulation is improved, and the calculation amount and the storage space of machining simulation can be effectively reduced when a complex three-dimensional scene in numerical control machining simulation is coped with.

The invention relates to the field of gear machining simulation and numerical analysis, and discloses a tooth turning machining simulation method for a complex topology modification tooth surface, which comprises the following steps of: firstly, establishing a tooth turning cutter cutting edge reconstruction model; identifying the cutting edge of the tooth turning cutter for actually cutting the specific tooth surface; establishing a tooth turning machining motion reconstruction model to obtain a tooth surface simulation machining point cloud; extracting a tooth turning machining simulation tooth surface based on a two-dimensional convex hull method, and evaluating the tooth turning machining simulation tooth surface; a target tooth surface model actually needed by engineering is constructed, and a tooth surface obtained through simulation machining and the target tooth surface are compared and analyzed so as to evaluate the precision and effectiveness of gear turning machining simulation; the problem that in the prior art, the numerical value singularity problem caused by curvature abrupt change and cut-in / cut-out boundary discontinuity in simulation machining of the complex topology modification gear is difficult to process, and the meshing equation solving process is always unstable or failed is solved.

The invention discloses a metadata set driven robot fine control heterogeneous data real machine simulation evaluation method, a medium and equipment. Simulation data and real machine logs are uniformly converted into a directed acyclic task graph (DAG) with preconditions, effects and constraints through a stable action library, an attribute library and an object / robot adapter, a Meta-Dataset is constructed, and a comprehensive scoring model combining a process score (PS) and an area under a success rate-difficulty curve (AUC) is defined on the Meta-Dataset. The method comprises the following steps: introducing an anti-cheating client integrating a policy fingerprint attestation (PFA), an action Merkel log (AML) and a verifiable execution experiment (VEE) at a real machine side, extracting an environmental parameter vector theta by utilizing a theta encoder, performing conditional playback according to the theta in a simulation environment, obtaining a success rate and a confidence interval by adopting a posterior predictive inference (PPI), and combining with a real machine result to form a calibration score; and cross-dataset and cross-platform robot fine control unified evaluation with anti-cheating capability is realized.

The invention relates to the technical field of computer aided design and numerical control machining simulation, in particular to a five-axis linkage numerical control machine tool machining simulation modeling method and system. Comprising the following steps: acquiring a workpiece space three-dimensional model, tool geometric model data and a six-dimensional pose data sequence; a dynamic virtual view cone is constructed, and the workpiece space three-dimensional model is divided into different areas; calculating spatial distances corresponding to different areas and mapping the spatial distances into different grid resolutions; performing spatial discretization and integration on the corresponding areas according to different grid resolutions to obtain a multi-resolution dynamic workpiece model, and performing Boolean material removal simulation to obtain a machining state model; and carrying out time sequence fusion on the machining state models at all moments to obtain a workpiece machining time sequence simulation model. According to the method, the processing process is sensed through the dynamic virtual view cone, adaptive distribution of modeling resources is realized, the problem of resource waste caused by uniform partitioning is solved, and the simulation efficiency is remarkably improved while the precision of a key region is ensured.

The invention belongs to the technical field of slurry shield slurry film forming, and particularly relates to a dynamic earth pressure balance shield slurry film forming test device and a maintenance observation method.The dynamic earth pressure balance shield slurry film forming test device comprises a base assembly, a stratum box assembly, a shield tunneling machine simulation assembly and a driving assembly, and the stratum box assembly, the shield tunneling machine simulation assembly and the driving assembly are all installed on the base assembly; the shield tunneling machine simulation assembly is in butt joint fit with the stratum box assembly, and the driving assembly is connected with the shield tunneling machine simulation assembly and used for driving the shield tunneling machine simulation assembly to excavate and convey slurry. According to the invention, the limitation that only static simulation can be realized in the existing test can be solved, the actual construction working condition is fit, different water pressure stratum environments can be simulated, constant temperature, humidity and pressure of a mud film working environment can be maintained, the reference value of a test result is improved, and full-flow data from film forming to pressure maintaining and visual support are realized, and the performance of the mud film is accurately captured.

The invention discloses a three-phase five-wire system electric switch machine simulation box, which belongs to the technical field of rail transit signal equipment, and adopts a high-power aluminum shell resistor to simulate a switch machine motor coil; three LED power indicator lamps are adopted to check the phase loss condition under the condition of three-phase current fault; a polarity holding relay is adopted to simulate the positioning and anti-position states of the switch machine; the time relay adopting power-on time delay is used for setting the action time of the simulation switch machine; a diode resistor circuit is adopted to simulate a rectifying circuit in an outdoor box of the switch machine; the AC-DC power supply module is used for supplying power to the time relay and the polarity holding relay. According to the invention, the control operation process of the switch machine, phase sequence inspection and definite and reverse position representation can be simulated, manual intervention is not needed, the efficiency of indoor turnout combination circuit wiring inspection is improved, the cost is reduced, and the operation is simple.

The invention relates to the field of aero-engine complete machine full-three-dimensional numerical simulation, and discloses an aero-engine complete machine full-three-dimensional simulation initial field presetting method and system, and the method comprises the steps: obtaining initial flow field boundaries of different parts from the zero-dimensional level of a complete machine by solving inlet section parameters and outlet section parameters of each part; then obtaining an initial field of each blade row in a turbine part, which has the most critical influence on the convergence of an engine, through a quasi-three-dimensional layer S2, and realizing initial field decomposition from the part to the part; and finally, by adopting a radial basis function interpolation method, mapping the zero-dimensional data and the S2 quasi-three-dimensional parameters to each grid unit of the complete machine full-three-dimensional model of the aero-engine, and then smoothly splicing the initialized flow fields of all the components at the interface to form a continuous complete machine three-dimensional simulation initial field under the examination working condition. The convergence of a whole machine simulation example, the simulation convergence speed and the numerical stability are greatly improved, the simulation trial and error iteration is reduced, the pretreatment time consumption is reduced, and the simulation speed and efficiency are improved.

To provide a technology that enables machining simulation to be performed at higher speed than conventional techniques. [Solution] The information processing device includes a control unit. The control unit executes a process to acquire a voxel model used in a simulation. The voxel model is defined by a plurality of lattice points that constitute a collection of voxels. Each of the plurality of lattice points is associated with a label that indicates an attribute of the object at the position of the lattice point. The control unit executes a process to acquire processing information that defines the irradiation coordinates of a laser beam and the irradiation direction of the laser beam for each time step, and a process to sequentially update the labels associated with the lattice points within an area specified by the irradiation coordinates and irradiation direction to a state where additional processing has been performed, according to the time step.

The invention discloses a numerical control machining simulation system based on artificial intelligence, and relates to the field of numerical control machining control. Comprising a demand analysis module, a processing modeling module, a data perception module, a knowledge modeling module, a parameter recommendation module, a path generation module, an error prediction module, a digital simulation module, a dynamic correction module, a risk detection module and an auxiliary decision module. Structured integration and multiplexing of historical experience and multi-source data are achieved, efficient knowledge migration can be carried out among different machining tasks, the cold start capacity and parameter optimization efficiency under the new working condition are remarkably improved, the machining performance can be continuously improved according to real-time feedback, the manual trial and error cost is greatly reduced, and the machining efficiency is improved. High-precision modeling of error distribution is achieved, and the consistency and usability between simulation and actual machining are improved.

The invention relates to the technical field of machining simulation, in particular to a voxel-based five-axis real-time cutting simulation method, which comprises the following steps of: determining a voxel size according to the number of rendered voxels, and performing voxelization processing on workpiece modeling according to the voxel size to obtain a workpiece voxel grid model; carrying out blocking processing on the workpiece voxel grid model to obtain a plurality of voxel blocks; and updating and rendering the model voxel in the voxel block according to the pose information of the cutter. In order to solve the problem that in the prior art, when large-scale voxels are processed in the cutting simulation process, efficiency is low or precision is insufficient, the size of the rendered voxels is dynamically calculated through workpiece modeling, voxelization processing is carried out, the good rendering efficiency is achieved, block processing is carried out on a workpiece voxel grid model, and the processing efficiency is improved. When cutting is simulated, only the specific block making contact with the cutter is locally updated, the number of voxels needing to be simulated and rendered again is reduced, and the processing efficiency is improved.

A training device includes a simulation data acquirer that acquires first simulation data through machining simulation with a first machining program, an actual machining data acquirer that acquires first actual machining data through actual machining with the first machining program, and a model generator that learns a relationship between the first simulation data and the first actual machining data and generates a trained model for predicting, based on second simulation data acquired through machining simulation with a second machining program, second actual machining data acquired through actual machining with the second machining program.

A simulation virtual debugging method and system are applied to debugging of a nuclear reactor refueling machine control system, and the method comprises the following steps: generating an operation sequence according to a received refueling demand, the operation sequence comprising a plurality of equipment instructions; simulating the equipment instruction through a pre-constructed refueling machine simulation model and a preset buoyancy algorithm rule to obtain simulation result information; and debugging the nuclear reactor refueling machine control system according to the simulation result information. According to the scheme, the debugging work of the nuclear reactor refueling machine control system can be started without waiting for mechanical equipment to arrive at a factory, the project production time can be shortened, and the debugging accuracy, reliability and debugging efficiency can be ensured.

The invention relates to the technical field of vapor deposition coating, in particular to a coating device airflow field optimization method and system, electronic equipment and a computer readable storage medium, and the method comprises the steps that a first coating device simulation model is established based on original structure parameters of an entity coating device, and the original structure parameters comprise to-be-adjusted parameters; configuring simulation parameters and simulation boundary conditions of the first coating device simulation model according to preset process conditions of the entity coating device to obtain a second coating device simulation model; performing airflow field simulation based on the second coating device simulation model to obtain a simulation result; judging whether the simulation result meets a preset condition or not; and when it is determined that the simulation result meets a preset condition, setting an entity coating device according to the corresponding numerical value of the to-be-adjusted parameter in the second coating device simulation model, and finally improving the film thickness consistency of coating of the coating device.

The invention discloses an engine ventilation process simulation calculation method based on three-dimensional iteration calibration, and belongs to the technical field of engine simulation data processing. The invention discloses an engine ventilation process simulation calculation method based on three-dimensional iteration calibration. The method comprises the steps that a one-dimensional simulation model and a three-dimensional simulation model of an intake and exhaust pipe system of an engine are constructed; same parabolic pressure wave boundary conditions are applied to air ports of the one-dimensional simulation model and the three-dimensional simulation model; calibrating the one-dimensional simulation model by iteratively adjusting structural parameters of key pipe sections of the one-dimensional simulation model by taking pressure waveforms of air cavities and header pipe nodes in the three-dimensional simulation model as references; and applying the calibrated one-dimensional simulation model to the one-dimensional model of the whole engine. By adopting the engine ventilation process simulation calculation method based on the three-dimensional iteration calibration, the problem that the whole machine simulation design efficiency is low due to the fact that the coupling relation is complex and the calculation time is long in the existing engine three-dimensional ventilation process can be solved.

The invention provides a verification method and a verification system, and belongs to the technical field of network security. According to the method, by generating the verification code image containing the non-character pattern contour, dependence of traditional OCR on characters can be avoided essentially, and safety is improved from the attack root. And meanwhile, a plurality of text feature options and at least one interference option are generated in combination with a visual feature extraction model, so that dual verification (including option semantic verification and behavior track verification) on user operation can be realized, multi-level cross inspection can be performed on the user operation, and attack of an automatic script can be effectively identified and blocked. In addition, by introducing depicting track verification based on a non-character pattern contour, the interaction mode that a traditional click verification code is single is broken, and an active behavior dimension which is difficult to be simulated by a machine is added for the verification process. Thus, through a dual verification mechanism of semantic hiding and behavior trajectory analysis, the success rate of machine attacks can be significantly reduced, and dual improvement of security protection and user experience is realized.

The application is based on a parallel flow passage heat exchanger flow distribution simulation method of a general flow resistance model: one, single channel general flow resistance model construction stage: create a general flow resistance model; single channel fine modeling and simulation; obtain pressure drop-flow rate data; fitting to determine the flow resistance coefficient; two, whole machine flow distribution simulation stage: build the whole machine simulation model: establish the three-dimensional geometric model of the macro flow channel system of the target heat exchanger and carry out grid division to obtain the macro flow channel CFD model, abstract all parallel microchannels of the core heat exchange section of the target heat exchanger into a parallel flow resistance network composed of a large number of flow resistance elements, each flow resistance element is endowed with the general flow resistance model with a specific flow resistance coefficient which has been determined in stage one; coupling solution, establish an iteration process, make the error between the driving pressure difference of each flow resistance element and the pressure drop calculated according to the general flow resistance model less than a preset threshold, and the iteration converges; output the flow distribution results of all parallel flow passages of the target heat exchanger.

The invention belongs to the field of numerical control machining simulation, and particularly discloses a cutting machining simulation method and system in a complex motion state, and the method comprises the steps: calculating a machining instantaneous contour line SPc (s, t) according to an initial tool model CSC and the current speed and angular speed of a tool; the initial tool model CSC = CST, CU CSM, CU CSB and C, CST and C represent the outer contour line of one side of the upper conical surface of the tool, CSM and C represent the outer contour line of one side of the middle transition circular ring surface of the tool, and CSB and C represent the outer contour line of one side of the lower conical surface of the tool; based on the instantaneous contour line SPc (s, t) and the corresponding movement pose parameter PC, establishing a tool path motion entity model of the tool; and combining the cutter path motion entity model and the cutter entity model to obtain a complete cutter swept volume model and a cut blank entity model. According to the method, the calculation of the instantaneous contour line in a complex motion state can be realized, and the cutting simulation precision is improved.

The invention discloses a machine simulation exercise muscle which comprises an internal supporting structure, an electromagnetic reaction layer and an external connecting layer, the internal supporting structure is a copper wire ring, the electromagnetic reaction layer sequentially comprises a pure silica gel layer, a silica gel magnet or magnet powder layer and a mixed layer of a magnet, magnet powder and silica gel from inside to outside, and the external connecting layer is a combination of silica gel, fibers and a framework. An alloy bracket, a synthetic leather, a copper wire pull belt and a silica gel and silica gel fiber mixture are arranged between the external connecting layer and the internal supporting structure, when a copper wire is electrified, current passes through the copper wire to generate a magnetic field, and interacts with a magnet or magnet powder in the electromagnetic reaction layer to generate electromagnetic force, so that a copper wire ring generates telescopic motion; the multiple machine simulation movement muscles can achieve the movement mode identical to that of animals through reasonable layout and cooperation, and due to the fact that the machine simulation movement muscles adopt the electromagnetic driving principle, compared with a traditional driving mode, the machine simulation movement muscles have the advantages of being low in noise and high in efficiency.

A master station and substation digital twinborn communication method and system oriented to automatic master station practical training comprises the steps that digital twinborn bodies of master station front-end processor simulation and substation telecontrol machine simulation are constructed and used for simulating the actual operation states and data of master stations and substations; constructing a communication protocol between the master station front-end processor simulation digital twin and the substation telecontrol machine simulation digital twin, wherein the communication protocol comprises a branch routing strategy and an intelligent channel gatekeeper strategy; performing communication configuration on the master station front-end processor simulation digital twin and the substation telecontrol machine simulation digital twin, and checking the consistency of the communication configuration; and realizing many-to-many communication between the master station front-end processor simulation digital twin and the substation telecontrol machine simulation digital twin based on a communication protocol according to the working modes of the master station front-end processor simulation digital twin and the substation telecontrol machine simulation digital twin. The simulation communication efficiency between the master station and the slave station can be improved, the communication stability is enhanced, the simulation complexity is reduced, and the simulation effect is improved.

The invention discloses a refrigerant dynamic charging process based on complete machine simulation operation, and belongs to the technical field of air conditioners and heat pumps. The problem that existing refrigerant charging depends on a static target value and cannot adapt to system individual differences and working condition changes in a self-adaption mode is solved. According to the process, a digital twinborn simulation model of a to-be-charged air conditioning system is constructed, the system is started to operate under a preset simulation working condition, and a first operation parameter is collected to initialize and calibrate the model; dynamically filling the refrigerant according to a preset step length, continuously collecting a real-time second operation parameter, and feeding the real-time second operation parameter back to the model; on the basis of real-time data, the model performs online fitting on a changing curve of parameters such as the supercooling degree and the superheat degree along with the charging amount, and predicts the refrigerant amount when the energy efficiency ratio of the system reaches the optimal as the optimal charging target; and when the parameters collected in real time and the extreme value region predicted by the model converge, it is judged that filling is completed. According to the system and the method, 'tailoring 'type dynamic accurate charging aiming at each specific air conditioning system is realized, and the charging precision and the system operation energy efficiency are remarkably improved.

The invention discloses a parallel flow channel heat exchanger flow distribution simulation method based on a general flow resistance model. The method comprises the following steps: 1, a single-channel general flow resistance model construction stage: creating a general flow resistance model; carrying out single-channel fine modeling and simulation; acquiring pressure drop-flow velocity data; fitting to determine a flow resistance coefficient; 2, a whole machine flow distribution simulation stage: constructing a whole machine simulation model: establishing a three-dimensional geometric model of a macroscopic flow channel system of a target heat exchanger, performing grid division to obtain a macroscopic flow channel CFD model, abstracting all parallel micro-channels of a core heat exchange section of the target heat exchanger into a parallel flow resistance network consisting of a large number of flow resistance elements, each flow resistance element is endowed with a universal flow resistance model which is determined in the first stage and has a specific flow resistance coefficient; coupling solution is carried out, an iteration process is established, the error between the driving pressure difference of each flow resistance element and the pressure drop calculated according to the general flow resistance model is smaller than a preset threshold value, and iteration convergence is carried out; and outputting a flow distribution result of all parallel flow channels of the whole target heat exchanger.

1. The name of the design product: multi-axis CNC machine simulation training machine main machine. 2. The use of the design product: for multi-axis linkage CNC machine practical teaching and training. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The utility model relates to the technical field of railway signal simulation and test equipment, and discloses a portable turnout simulation and test platform which comprises a box body, and a mainboard, a point switch simulation circuit board, a liquid crystal touch display screen, a display / operation and wiring panel, a power module and a battery body are arranged in the box body. The interior of the box body is divided into an upper layer, a middle layer and a bottom layer, the liquid crystal touch display screen is located on the upper layer of the box body, the mainboard, the point switch simulation circuit board, the power module and the battery body are located on the bottom layer of the box body, and the display / operation and wiring panel is located on the middle layer of the box body. The portable turnout simulation and test platform adopts a portable design, is convenient for testing at any place at any time, is provided with a display / operation and wiring panel, performs experimental operation on a turnout through the panel, displays the state of the turnout through the liquid crystal touch display screen and the display / operation and wiring panel, and is convenient to use. And the test platform is simple and visual to operate.

The present disclosure provides a web page request processing method, apparatus, electronic device, and storage medium. The method includes: receiving a web page request for a target web page, and detecting user behavior data and the number of web page request requests within a preset time period after receiving the web page request; the web page request does not include user identity information; using a human-machine weighting algorithm to determine a human-machine evaluation score based on the user behavior data and the number of web page request requests, and judging whether the web page request is a real user request or a machine-simulated request based on the human-machine evaluation score; if the web page request is a real user request, determining whether to access the target web page based on a first interface signature key generated by calling a front-end service for the web page request and a second interface signature key generated by calling a back-end service for the web page request. Embodiments of the present disclosure can improve security during web page access.