40results about How to "Improve the simulation effect" patented technology

The application discloses a preparation method of high-fixing short-process cashmere-like synthetic leather. The synthetic leather comprises a wet-process base layer formed by high-elasticity base cloth mixed with polyester fibers and castor fibers and foaming slurry permeated in the base cloth, and a foaming layer and a dry-process surface layer which are sequentially stacked on the wet-process base layer. The foaming slurry comprises hydrolysis-resistant soft wet-process resin, antibacterial agent and other components; the foaming layer is formed by foaming resin containing isocyanate curing agent. The preparation method mainly comprises the following steps: base cloth preparation, foaming slurry preparation and vacuum degassing, wet-process base preparation, dry-process surface layer and foaming layer slurry preparation, and pasting of the wet-process base on the surface layer and the foaming layer coated on release paper, and aging. Through the double-functional design of the base cloth and the coating, and the application of water-based polyurethane foaming resin, the synthetic leather has excellent antibacterial property, hydrolysis resistance, high elasticity and air permeability, and is soft and Q-elastic in hand feeling, and is environment-friendly.

The utility model discloses an electric decoy duck propeller, including propeller subassembly, timer component, power connection line and battery output line, wherein propeller subassembly connects duck decoy, is placed in water and provides downward propulsion power, controls duck decoy and makes the action of diving in water in water, the output end of power connection line is connected to propeller subassembly, and propeller subassembly is provided with the transmission of underwater signal and electric energy, the output end of timer component is connected to the input end of power connection line, and propeller subassembly is provided with control signal, and the frequency and length of time of duck decoy diving are controlled, and battery output line is connected to the input end of timer component, and propeller subassembly is provided with electric energy. The utility model discloses simple structure, low in production cost, easy operation, high practicality can realize the action of the multiple electric duck to underwater movement to imitate duck natural eating to reach the effect of attracting duck landing water surface, so that better hunting.

The invention relates to the field of simulation test equipment before shield construction, in particular to test equipment for simulating floating of duct pieces in tunnel construction and a matched measurement method. The problems that in the prior art, preparation is insufficient and operation time is long due to the fact that duct piece floating is usually solved through on-site matching are solved. The device comprises a test base with a plurality of rotational degrees of freedom and a simulation box mounted on the test base, the simulation box is barrel-shaped, a primary limiting frame for limiting the initial position of a simulation segment is arranged at an opening of the barrel-shaped simulation box, the simulation segment is assembled to form a multilayer simulation segment ring, and the simulation segment ring is connected with the primary limiting frame. A simulation rock stratum is filled between a simulation segment ring and the simulation box, and a grouting opening facing the simulation rock stratum is formed in the simulation segment ring; and the transparent observation plate is arranged at the opening of the simulation box. The device has the advantages that simulation is carried out from the fundamental principle of segment floating, and the real construction is simulated in advance.

The application discloses a kind of intelligent automobile vehicle-mounted inertial navigation system calibration device, belongs to inertial navigation technical field, including test frame, the test frame side fixed installation has test with sensing equipment, the test frame inner chamber bottom four corners are all fixedly connected with support leg, the test frame inner chamber fixed installation has test track.The navigation calibration car body can be moved upward under the limiting effect of one side ramp plate and fall into the curved part of test track, and enter into lateral track mechanism under the extension abutment effect of rear track arc part, the reciprocating rotary motion of navigation calibration car body in test track curved part and staggered track main body, so that the reciprocating turning motion of navigation calibration car body in test track curved part and staggered track main body is simulated to turn, improve the simulation effect of navigation calibration car body in different calibration conditions under indoor condition, meet the adjustable of navigation system calibration.

The invention discloses a double-color cosmetic display prop and a preparation method thereof, and particularly relates to the technical field of cosmetic display, the double-color cosmetic display prop comprises a bottle body and a bottle cap, the bottle body is of a double-layer structure and is divided into an inner container and an outer layer, and the inner container and the outer layer are transparent parts or colored parts; the inner container and the outer layer are overlapped, so that the bottle body can present a full-transparent, semitransparent or solid-color effect. The prepared double-color cosmetic display prop is different in shape, light in weight, good in simulation effect and convenient to arrange and display in any place.

This invention provides a toy skeleton structure, wherein the torso adopts a segmented structure. Ball heads and spherical grooves are respectively provided on the opposite end faces of the first and second torsos. The first torso can be rotatably fixed to the second torso through the rotational engagement of the ball heads and spherical grooves. Simultaneously, the ball heads are connected to the end face of the first torso through a waist-shaped transition section, allowing the torso to rotate and perform small-amplitude swaying movements, thereby increasing the torso's range of motion and fluidity. This invention also provides an assembly mecha toy including the aforementioned toy skeleton structure. The toy skeleton structure provided by this invention has the advantages of simple and compact structure, fewer component parts, simple assembly operation, and easy management. It also has the advantages of multiple and smooth range of motion, ensuring high playability and interactivity for both the skeleton structure and the assembly mecha toy. Furthermore, the structural design of the toy skeleton structure allows its shape to more closely resemble a simulated human body structure.

The utility model discloses a simulation animal skeleton structure capable of adjusting postures, which relates to the related field of simulation animal skeletons and comprises a lower limb component, an upper limb component, a basic skeleton frame component and a control component, the upper end of the lower limb component is rotatably connected with the upper limb component, and the upper end of the upper limb component is rotatably connected with the basic skeleton frame component. Hollowed-out grooves in the front end and the rear end of the basic skeleton frame assembly are fixedly connected with the control assembly, and the lower limb assembly further comprises a lower limb frame; the lower limb connecting rod is fixedly connected between the two groups of lower limb frames; the first motor is fixedly connected between the upper ends of the two groups of lower limb frames; the first tilt angle sensor is arranged at the left end of the first motor; by arranging the control assembly capable of performing wireless automatic control on the skeleton of the independent part, the device can perform wireless automatic control on the skeleton of the independent part, so that the simulation effect is relatively good.

The invention discloses a device and a method for researching the matching characteristic of sediment fluidization phase change and slurry-making suction and discharge, and relates to the technical field of water conservancy projects. The desilting test research method comprises the following steps: setting a target test working condition; adding silt and water into the test water tank; adjusting water supply flow, slurry pumping flow, reamer rotating speed and reamer position; starting a desilting assembly to carry out multi-dimensional disturbance desilting treatment of scouring, slurry pumping and stirring on deposits in the test water tank, and collecting image data at the same time; detecting slurry concentration data and sediment concentration data; closing the dredging assembly; the data is derived for analysis. According to the desilting test research device and method for the sediment fluidization phase change and slurry making suction and discharge matching characteristic under the multi-dimensional disturbance effect, the desilting slurry making and suction and discharge process under the multi-dimensional disturbance conditions of different angles, different heights and different flow speeds can be simulated so as to conduct desilting test research, rapid setting of different research working conditions is achieved, and the desilting efficiency is improved. Operation is simple, practical and convenient.

Embodiments of the present application disclose a device testing method and device, equipment and a storage medium, wherein the method comprises: determining a first point on a three-dimensional spherical surface of a reference channel model; a power distribution of the first point is greater than a power distribution of a second point, the second point being a point on the three-dimensional spherical surface except the first point; selecting a face on which a circular ring passing through the first point of the three-dimensional spherical surface of the reference channel model is located as a target horizontal plane; and rotating the reference channel model according to the target horizontal plane to obtain a target channel model; and the target channel model is used for performance evaluation of a device under test in a multi-probe darkroom.

The application discloses a heat exchange station control method based on reinforcement learning, and mainly comprises two parts, wherein the first part is a simulation environment model of the heat exchange station learned based on a generative adversarial method, and the second part is a control strategy training of the heat exchange station using a PPO reinforcement learning technology, so that a good heat exchange station control method is obtained. The simulation environment model of the heat exchange station is constructed based on historical data of the heat exchange station, and a generative adversarial method is adopted to learn the simulation environment model, so that the simulation environment can obtain a good simulation effect in a state that has not appeared in the historical data. Then, the simulation environment model learned by the generative adversarial structure is used to train the control strategy by using the PPO reinforcement learning technology. Since the training process of the PPO reinforcement learning technology is relatively stable and the training process variance is small, the obtained control strategy can well complete the control target given by the design reward function, and the temperature of the control result will not lag.

This invention relates to the field of parallel motion platform technology for flight simulation, and discloses a multi-degree-of-freedom flight simulation motion platform and its control method. The flight simulation motion platform includes a base and a motion platform. The motion platform is connected to the base through three evenly arranged motion mechanisms. Each motion mechanism includes a support seat, an inverted U-shaped support arm, a rotating shaft, a drive assembly, and a precision control assembly. A connecting seat is vertically fixed at the upper end of the inverted U-shaped support arm. Three corresponding inverted U-shaped seats are evenly fixed on the lower surface of the motion platform. A fixing rod is horizontally fixed inside each inverted U-shaped seat, and the fixing rod is connected to the inverted U-shaped seat through a ball joint. The multi-degree-of-freedom flight simulation motion platform proposed in this invention exhibits good motion continuity, good simulation of continuous flight motion states, and excellent accuracy and stability.

The invention discloses a self-adaptive hydrological model structure optimization and migration method based on deep learning, and relates to the technical field of hydrological forecasting, and the method takes a concept hydrological model as a base, integrates various calculation paradigms for key hydrological flux, and optimizes a model structure through dynamic weight combination; a deep learning model is constructed, dynamic meteorological data and drainage basin static attributes serve as input, nonlinear mapping relations between model parameters and weights and meteorological conditions and drainage basin attributes are learned, and a coupling model of deep learning and a hydrological model is constructed; a transfer learning technology is utilized, a model pre-trained on a large-scale multi-basin data set is applied to Shaanxi Weihe River and Han River basins, model fine tuning is performed through a small amount of local data, and rapid localized transfer and high-precision runoff prediction are realized; according to the method, the limitations of fixed structure, complex parameter calibration and insufficient training data of a traditional hydrological model are effectively overcome, and an efficient, flexible and high-precision solution is provided for hydrological forecasting of a complex watershed.

This application provides a test specimen and adjustment method for variable center of mass and stiffness. The test specimen includes a shell support, lugs, counterweight I, counterweight II, short bolts, long bolts, and connecting holes. Specifically: N bolt connecting holes are designed on the three right-angled surfaces AB, BC, and CD of the shell support, the inclined surface DA, and the bottom surface ABCD. The lugs are fixed to the three planes AB, BC, and CD of the shell support by short bolts. The lugs on the AB and BC planes move in a direction parallel to the AB or BC plane, thereby changing the center of mass of the test specimen. Counterweight I and counterweight II are fixed to the inclined surface DA and the bottom surface ABCD of the shell support by long bolts and move in a direction parallel to the inclined surface DA and the bottom surface ABCD, thereby changing the center of mass of the test specimen. The lugs include lug I, lug II, and lug III. By changing different types of lugs, the connection stiffness of the lugs can be changed.

The embodiment of the application discloses a dynamic phasor representation DC power system random transient analysis method, relates to the power electronic field of the DC power system, and can reflect system characteristics caused by source-load random excitation conditions and multi-rate simulation, and balance the contradiction between precision and efficiency. The application comprises the following steps: obtaining DC power system parameters and setting initial parameters; obtaining circuit models of two types of lumped elements in the DC power system; establishing a dynamic phasor model of a converter station in the DC power system and obtaining a dynamic companion circuit of the converter station; using the circuit models of the two types of lumped elements and the dynamic companion circuit of the converter station, establishing a model of the DC power system; obtaining node voltage equations of the DC power system; updating a node admittance matrix and an injected current vector according to changes in a switching function of the converter station; and converting dynamic phasors output by the model of the DC power system into instantaneous values.

The utility model provides a simulation tree lamp, belongs to the technical field of simulation lamps, and mainly solves the problem of how to improve the safety and simulation effect of the tree lamp. A simulation tree lamp comprises a base, a hollow trunk and a plurality of branches, one end of each branch is fixed to the hollow trunk in the circumferential direction, each branch is wound with a lamp string, one end of each lamp string is connected with a power-on cable, the hollow trunk is provided with communicating holes allowing the lamp strings to penetrate through, and the communicating holes are formed in the connecting positions of the branches and the hollow trunk. Simulation adhesive tapes are wound on the trunk and the branches, the branches are wound and fixed to the hollow trunk through the simulation adhesive tapes, the simulation adhesive tapes cover the communicating holes and the lamp strings penetrating through the communicating holes, the trunk is formed by inserting pipes, an electrified cable is arranged in each pipe, and each electrified cable comprises a socket, a plug and a wire. And the length of the straightened electrified cable is greater than that of the pipe. And the use safety and the simulation effect are improved in a manner of internally arranging the joint and shielding the communication hole.

The utility model discloses a simulation fireplace which comprises a fireplace body, a flame effect device, a heating element and a control system, a hollow combustion chamber is formed in the fireplace body, and an observation window and an air outlet are formed in the front side of the combustion chamber. The flame effect device comprises an LED lamp set arranged behind the combustion chamber, a light guide plate located in front of the LED lamp set and a diffusion layer covering the surface of the light guide plate. The light guide plate is provided with a plurality of flame light-transmitting areas in different shapes. In the aspect of flame simulation, through the design of the wave-shaped light guide plate and the gradually-changed interval flame light-transmitting area and the combination of the nanoscale titanium dioxide diffusion layer, light refraction and scattering are more natural, the dynamic flame fidelity is high, the light intensity uniformity is high, the problem of uneven light spots is effectively solved, and the flame simulation effect is improved. And the simulation effect, the heating efficiency, the intelligent control and the safety are greatly improved.

This invention provides an intermittent in-situ current-carrying friction testing machine, belonging to the field of physical property testing technology. It includes a base, with a double-disc friction mechanism mounted on top of the base. This mechanism simulates the current-carrying friction between the armature and the guide rail during projectile firing. A third mounting base is mounted on top of a second mounting base, with a high-speed camera fixedly connected to the center of the top of the third mounting base. A support frame is fixedly connected to one side of the top of the third mounting base, and an infrared thermal imager and an acoustic emission sensor are mounted on the support frame. This invention utilizes the double-disc friction mechanism, employing the contact between an aluminum alloy disk and a copper alloy disk as the medium for the conductive circuit. A DC voltage is applied to the surfaces of the aluminum and copper alloy disks using brush rods, thereby providing a stable constant current input to the entire device. Since the aluminum and copper alloy disks are in a state of relative rotation, this testing machine can conduct stable experiments for extended periods.

A wing-flapping device for a simulated flying creature ornament includes a main body of the simulated flying creature. The main body has an internal mounting cavity. Oscillating components are located on both sides of the main body, rotatably connected to the main body via pivots. Wings are positioned on the outer side of the oscillating components. A power unit and a sliding assembly are housed within the mounting cavity. The output shaft of the power unit is connected to an eccentric wheel, which has a protruding eccentric shaft. The eccentric shaft drives the sliding assembly to slide up and down. The sliding assembly, via a linkage structure, drives the oscillating components located on one side of the main body to oscillate up and down. The power unit, sliding assembly, and linkage structure drive the wings of the simulated flying creature to flap up and down, making it more lifelike and fully showcasing the beautiful shape and patterns of the wings, resulting in a good decorative effect. The power unit, sliding assembly, and linkage structure are all housed within the main body of the simulated flying creature, resulting in a small size, simple structure, easy manufacturing, and good simulation effect.

The invention discloses an oil and gas field power system operation state prediction method and device and a storage medium. The method comprises the steps of obtaining a topological structure, branch parameters and real-time measurement data of a target oil and gas field power system; based on the topological structure, the branch parameters and the real-time measurement data, constructing an induction motor dynamic equivalent model corresponding to the target oil and gas field power system; on the basis of the induction motor dynamic equivalent model, the topological structure, the branch parameters and the real-time measurement data, measurement functions of different operation state parameters of the target oil and gas field power system are constructed, and Jacobian matrixes corresponding to the different measurement functions are determined; and determining an initial operation state parameter, carrying out iterative solution on the initial operation state parameter based on the measurement function and the Jacobian matrix, and finally taking the operation state obtained by the final solution meeting an iterative solution convergence condition as the predicted operation state of the target oil and gas field power system.

The invention belongs to the technical field of meteorological simulation, discloses a systematic tropical cyclone and high-resolution wind field modeling method, system and device based on environment driving and a medium, and aims to solve the problem of wind field simulation distortion in complex terrains. The method comprises the following steps: acquiring and unifying environment field data; calculating a dynamic generation potential index field based on the base month average climate field, defining a space-time generation probability, and randomly sampling to generate an initial event set of a plurality of synthetic tropical cyclone events; performing iterative simulation on each synthetic tropical cyclone event, and outputting full life cycle information; aiming at the full life cycle information, based on a gradient wind balance physical model, calculating each position point in the moving track information and a corresponding central air pressure difference value, and obtaining a near-surface wind field under an open terrain assumption as a first near-surface wind field; and acquiring high-resolution terrain data, inputting the high-resolution terrain data and the first near-surface wind field into the terrain adaptive correction model, and outputting the corrected near-surface wind field as a second near-surface wind field.

The utility model relates to a visual test device suitable for a water-rich stratum tunnel grouting reinforcement model, which comprises a support base, a transparent test bin, an upper pressure mechanism, a grouting mechanism, a water injection mechanism and a pressure sensor, the transparent test bin for loading a sample is arranged on the support base, and the upper pressure mechanism acts on the upper end face of the transparent test bin; a water injection hole is formed in one end of the transparent experiment bin in the length direction, a plurality of grouting holes capable of being opened or closed are formed in the other end of the transparent experiment bin in the length direction, a plurality of monitoring holes and drainage holes capable of being opened or closed are formed in the lower end face, the water injection mechanism is connected into the water injection hole, the grouting mechanism is connected into one grouting hole, and each monitoring hole is connected with one pressure sensor. The device is simple in structure, convenient to operate, capable of effectively simulating and researching the water-rich stratum tunnel grouting reinforcement visualization process, capable of visually reflecting the diffusion rule of fluid and grout and high in visualization degree, and belongs to the technical field of civil engineering testing devices.

The utility model relates to a simulation eye based on a miniature display screen, the simulation eye comprises at least one pair of curved surface bodies similar to the physical form of the eye and an eye simulation unit used for data processing and simulation picture generation, and each curved surface body comprises a display screen provided with a screen display control unit; and the eye simulation unit is connected with the screen display control unit, so that the display screen can display a dynamic simulation effect of eyes. The simulation eye based on the micro display screen disclosed by the utility model is good in simulation effect, and not only can simulate the physical form of the appearance of the eye, such as transparent cornea and eye bulge characteristics. And the dynamic effect of eyes can be simulated, such as displaying iris style color and pupil size, simulating eyeball movement change and the like.

The application discloses a kind of ecological stone dry method cloth equipment of whole body imitating natural stone, it is related to ecological stone production equipment technical field.The present application includes frame and mould conveying device, the upper of the conveying direction of mould conveying device is sequentially provided with main material cloth mechanism, big texture pressure break mechanism and surface cloth mechanism, mould conveying device is used to carry mould sequentially through main material cloth mechanism, big texture pressure break mechanism and surface cloth mechanism, and mould conveying device carries mould in main material cloth mechanism reciprocating multiple times;Main material cloth mechanism and surface cloth mechanism all include several cloth units, and multiple cloth units are installed in frame and arranged side by side.The ecological stone dry method cloth equipment of whole body imitating natural stone of the present application can form natural whole body irregular patch pattern on the surface of the prepared ecological stone, and imitate the broken line in natural stone texture level in the form of material layer broken line, to achieve the effect of whole body imitating natural stone.

The disclosure provides a business process simulation method and device, electronic equipment and readable storage medium, which can be applied to the technical field of network and the field of finance. The business process simulation method comprises the following steps: acquiring service information of a plurality of services respectively associated with a target business process and an association relationship between the plurality of services; determining service information of a replacement service of each of the plurality of services according to a service name, a start execution time and execution failure probability information in the service information of each of the plurality of services; and simulating the target business process according to the service information of each of the plurality of services, the service information of the replacement service of each of the plurality of services and the association relationship between the plurality of services to obtain a simulation result of the target business process, so as to determine whether to execute the target business process according to the simulation result of the target business process.

The present application relates to the technical field of power transmission tower angle steel bearing capacity calculation, in particular to a kind of power transmission tower angle steel bearing capacity calculation method after nondestructive reinforcement;It includes the limit bearing capacity Bc ultimate Corresponding to the calculation of different repair finite element model And repair wind load Wl repair ; Limit bearing capacity Bc ultimate And repair wind load Wl repair Numerical state, select the appropriate repair reinforcement method.The present application obtains the corresponding reference value by simulating the repair finite element model under different repair reinforcement methods, and compares with the corresponding conventional reference data, calculates the final matching rate, matches the best repair reinforcement method for different defects, and improves the simulation effect.

The invention provides a simulation method and device of a robot model, equipment, a storage medium and a product. The method comprises the following steps: acquiring a pre-configured unified robot description format model and a digital intelligent object model, mapping attribute information and event information of the digital intelligent object model into the unified robot description format model, and docking service information of the digital intelligent object model with a control interface of the unified robot description format model, and obtaining a robot model. And importing the robot model into a simulation environment, and executing a remote control instruction on the robot model based on the control interface in the simulation environment. The functional diversity of the robot model is increased, and then the simulation effect is effectively improved.

A kind of total phosphorus simulation method of basin based on new aujiang three water source components belongs to the technical field of basin hydrology and water quality coupling simulation. First, collect the basic data of flood event in the study basin, and uniformly arrange and pretreat, obtain the flood event data set. Secondly, the new aujiang model of flood period hydrological simulation is constructed, the surface runoff, the soil water runoff, the groundwater runoff and the reservoir discharge after river evolution are calculated, and the three water source components and the total flow of the study section are obtained. Thirdly, the total phosphorus simulation model of flood period is constructed, the total phosphorus load of the study section is obtained, and the total phosphorus concentration is calculated combined with the section flow. Finally, the new aujiang model parameters and the total phosphorus simulation model parameters are calibrated and verified. The present application can realize the simulation of total phosphorus concentration in the flood event process of small and medium-sized basins affected by the regulation of upstream reservoir, provide technical support for the evaluation of basin water environment, pollution load analysis, identification of reservoir regulation influence and development of pollution control measures.

This invention discloses a real-time material recycling and feeding device for eco-friendly stone that mimics natural stone throughout, belonging to the technical field of eco-friendly stone production equipment. The invention includes a frame, a mold conveyor belt, and a real-time recycling device. Above the conveyor belt in the direction of transport, a main material feeding mechanism, a large texture breaking mechanism, and a surface material feeding mechanism are sequentially arranged. The mold conveyor belt carries the mold through these mechanisms multiple times. Both the main material feeding mechanism and the surface material feeding mechanism include several feeding units, which are arranged side-by-side on the frame. The real-time recycling device includes a bottom recycling belt, a side conveyor belt, a material return and dispersing mechanism, and a replenishment device. The recycling process for excess material is simple, fast, and timely, and can achieve the broken texture effect in the layers of natural stone, resulting in a fully natural stone-like finish.

The application discloses a controllable source electromagnetic three-dimensional forward method and system suitable for complex medium, and specifically comprises the following steps: constructing a three-dimensional geoelectric model based on an octree grid; based on the three-dimensional geoelectric model, using a vector finite element method to derive a finite element linear equation group of a controllable source electromagnetic field; for the hanging edge and the hanging surface existing in the octree grid, ensuring the tangential continuity of the electric field through a constraint matrix to optimize the finite element linear equation group; solving the optimized finite element linear equation group to obtain three-dimensional electric field values; and using an MPI-OpenMP hybrid parallel computing strategy to perform parallel solving on the finite element linear equation groups of multiple frequency points. The application can solve the electromagnetic response calculation problem of multiple physical parameters in the underground, fully considers the influence of different physical parameters in the controllable source electromagnetic forward simulation process, can avoid the influence of different parameters, provides more reliable guidance for field observation system design, and also lays a foundation for multi-parameter inversion imaging.

The invention belongs to the technical field of power equipment and electromagnetic field simulation, and discloses a multi-field coupling simulation-based isolation switch differential operation and maintenance strategy generation method, which comprises the following steps of: establishing an electric-thermal-force-environment four-field deep coupling isolation switch simulation model covering an electric field, a thermal field, a force field and an environment field; adjusting the static and constant environmental parameters into self-adaptive dynamic environmental parameters based on real-time meteorological data and regional features; collecting field operation data of the outdoor high-voltage isolation switch, and feeding back the field operation data to the simulation model to correct the material parameters; and based on a simulation model output result after iterative optimization, a differential operation and maintenance strategy is formulated, and scientific support is provided for accurate evaluation and active operation and maintenance of the power grid. According to the isolation switch differentiation operation and maintenance strategy generation method based on multi-field coupling simulation, reliable basis can be provided for outdoor high-voltage isolation switch state evaluation, aging mechanism analysis and operation and maintenance decision making through a simulation means, the operation and maintenance decision making is supported, and the operation reliability of a power grid is improved.