47 results about "Global simulation" patented technology

The present invention discloses method and system for a multimode simulator having an emulation core with improved performance. In an embodiment of the invention, the overhead caused by the exclusive use of the simulation technique using one instruction-at-a-time interpretation is reduced by additionally using binary translation for executed blocks of interpreted instructions (i.e. that contain no jumps out of the block) from the same instruction set architecture description. Since performing translations too frequently can undesirably increase overhead by overloading the cache, the binary translation is only performed for blocks that are executed frequently. Once the blocks are translated e.g. by forming the block from instructions via templates and generating the collective code, the overall simulator performance is significantly improved by running the blocks instead of running the instructions one-at-a-time.

The invention provides an electricity market simulating system by adopting an SOA technology, which realizes global simulation for current electricity market of the country, provides technical support means for simulating electricity market operation and electricity system operation in different environmental conditions and market behaviors, globally evaluating market status, preventing market risks, verifying market rules, studying safe and stable operation strategy and measures of the electricity system under electricity market condition, and training electricity market related working staff, and provides a reliable technical analysis tool for high-efficiency excellent operation of the electricity market of the country.

Integration of a system-level simulation with one or more hardware device simulations is accomplished using a mapping layer, which allows the system-level simulation to interact with the hardware device simulation at a pin level, an object level, and an abstract level. The overall simulation may operate with respect to a clock or timing device or it may operate with respect to transactions.

Average flowing-through time is an important scheduling index to which enterprises pay attention. When a dispatching method based on soft computing and the like is used for optimizing dispatch, global simulation is required to be carried out on a dispatching strategy to obtain a corresponding average flowing-through time index; the process needs to be carried out several times; the process consumes longer time if used for building an accurate simulation model for a whole larger scale production line as well as used for global simulation on the dispatching strategy; thus, quick prediction of the average flowing-through time index has the important meaning for improving the performance of the dispatching algorithm. The invention discloses a quick prediction method of average flowing-through time on basis of index compensation, which divides a machine group into a bottleneck machine group and a non-bottleneck machine group so as to loosen the working capability of the non-bottleneck machine group to build a simplified dispatching model; then, an SVM (support vector machine) is used for obtaining the compensation relationship between the corresponding average flowing-through time indexes of the simplified dispatching model and a non-simplified dispatching model, thus realizing the quick prediction of the average flowing-through time index.

A method for creating a global simulation model of an architecture for models of integrated circuits under development, including reading an architecture description file of the global model and storing information related to all of the possible configurations instantiating the components and storing the corresponding information, topologically connecting the interface signals, physically connecting the interface signals, at the level of each instance of the components using a component and connection rule table, and storing the corresponding information, and automatically generating the HDL-type and HLL-type source files of the global simulation model.

The invention provides a key parameter identification method for high-speed train dynamics performance design, which relates to the field of dynamics simulation design and analysis for the high-speed trains. A single-output LM neural network agent model is effectively used, and overall design of the high-speed train is merged in multi-subject global simulation design. The method comprises the following steps: a high-speed train multi-rigid-body dynamics physical model and a simulation model are firstly used, high-speed train dynamics performance input and output design space is determined, expert domain knowledge is used, and high-speed train dynamics performance design parameters and response indexes are extracted to shorten the design space; then, LM algorithm is adopted to adjust weights and thresholds of the neural network so as to improve the convergence speed and the convergence accuracy of the single-output neural network, and according to a sensitivity formula of input parameters in relative to an output value in the neural network, sensitivity is calculated; and finally, sensitivity analysis and key parameter identification are carried out on high-speed train design parameters. The method of the invention is mainly used for high-speed train dynamics analysis and design.

Disclosed herein are an apparatus and method of performing distributed simulation. In the method of performing distributed simulation, a simulation time provision apparatus sets global simulation times synchronized with real times based on the real times. The simulation time provision apparatus distributes the set global simulation times over distributed simulators. Each of the distributed simulators adjusts the interval between local simulation times, during which the continuous or discrete elements of an allocated one of subsystem models that model subsystems forming a hybrid system will be analyzed, based on the global simulation times. The distributed simulator performs simulation to analyze the continuous or discrete elements of the subsystem model during a period corresponding to the adjusted interval between the local simulation times.

Disclosed herein are a method of reusing physics simulation results and a game service apparatus using the method. The game service apparatus includes a game service management server, a physics simulation index server, a physics computation cluster, and a rendering server. The game service management server manages physics simulation data corresponding to a game service. The physics simulation index server creates a spatial index structure corresponding to the physics simulation data, and performs spatial indexing for a user area using the spatial index structure. The physics computation cluster performs initial global simulation on the physics simulation data, manages initial global simulation results as reuse data, and performs local simulation on spatial indexing results for the user area. The rendering server merges the reuse data with local simulation results, renders merging results, and provides a game image to a user.

The invention discloses a multi-agent interactive environment perception and path planning movement system. The multi-agent interactive environment perception and path planning movement system specifically comprises a data integration host and a plurality of intelligent cars, the data integration host comprises a data processing unit, a first wireless transmission module and a first data storage module, and every intelligent car comprises a car body, a power system, a processing module, a positioning module, a data acquisition device, a second wireless transmission module and a second data storage module. The multi-agent interactive environment perception and path planning movement system has the advantages that with the aid of collaboration of the data integration host and the intelligent cars, the intelligent cars detect known areas through cameras, infrared sensors and ultrasonic sensors, and the data integration host establishes a real-time global simulation map by combining detection results of the intelligent cars, so that detection paths of the intelligent cars are arranged reasonably, and repeated detection is avoided; the system is capable of detecting the unknown areas automatically without assistance of workers, and accordingly working time is saved and working efficiency is improved.

Simulation of models within a distributed environment is facilitated. A model is partitioned based on clock domains, and communication between partitions on different processors is performed on synchronous clock boundaries. Further, data is exchanged across the network on latch boundaries. Thus, management aspects of the simulation, such as management associated with the global simulation time, are simplified.

The invention discloses a mobile phone positioning data based urban traffic corridor identification method. The method comprises the following steps of constructing an urban digital model; inputting the urban digital model into a calculation module of a geographic information system; acquiring mobile phone signaling and base station coordinate data, and combining the mobile phone signaling and the base station coordinate data with the urban digital model; acquiring urban mobile phone positioning data with time information and importing the urban mobile phone positioning data into a data processing system for data screening and data arrangement to form an urban population dynamic distribution database; combining the urban population dynamic distribution database with the urban digital model to form a dynamic traffic corridor model and performing check and correction; performing global simulation on the dynamic traffic corridor model and identifying urban traffic corridors of all time nodes; and integrating the urban traffic corridors of all the time nodes to form an urban dynamic traffic corridor. Compared with the prior art, the method has the advantages of easiness for obtaining operation data, wide identification time range and wide identification space range.

The invention discloses an analog simulation method and device based on an event network, and computer equipment, which are applied to an event network system platform. The method comprises the following steps: obtaining initial service data, a preset event and a preset algorithm of a target service scene, wherein the initial service data is a real number, and the preset algorithm comprises a continuous calculation algorithm and/or a discrete calculation algorithm; constructing a service model based on an event network according to the initial service data, the preset event and the preset algorithm, wherein the event network is compatible with a discrete mode and a continuous mode; obtaining a service simulation trigger event; and simulating the service model based on the event network based on the service simulation trigger event to obtain a simulation result. Simulation is carried out on the business model constructed based on the event network, enterprise-level global simulation of continuous and discrete businesses can be realized, and social behavior systems such as flow, organization and human behaviors can be simulated more accurately.

The invention provides a full-reactor-core thermal-hydraulic sub-channel simulation method, which can greatly improve the query efficiency of whole reactor core global simulation data. The method comprises the following steps: acquiring parameter information for simulating a whole reactor core thermal hydraulic sub-channel, wherein the parameter information comprises a global number; according tothe obtained parameter information, executing the sub-channel simulation software in parallel through a plurality of slave processes, and enabling each slave process to output a corresponding local simulation file, wherein a sub-channel, a gap, an assembly and a fuel rod in each local simulation file respectively have a local number; according to the mapping relation between the local numbers andthe global numbers, analyzing all the local simulation files to obtain full reactor core global simulation output data stored in a database. The invention relates to the field of nuclear technology.

The invention provides a failure prediction method and device for a multi-row screw joint structure of a composite material cylinder. The technical problem that an existing simulation technology is poor in pertinence is solved. The method comprises the following steps: establishing a three-dimensional solid model of a composite material cylinder structure; establishing a global finite element model of the three-dimensional solid model to form a global simulation process and a global simulation result; establishing a multi-row bolt connection structure finite element model of the three-dimensional solid model; and limiting a multi-row bolted connection simulation process by utilizing the global simulation result to form a multi-row bolted connection simulation result. The failure predictionaccuracy of the composite material cylinder multi-row bolt connection structure is improved, and a stress/strain fine analysis means is provided for optimization design of the composite material cylinder multi-row bolt connection structure. The overall limit boundary of multi-row bolt connection structure simulation is established through the overall simulation result, the fine grids and the small-particle entity units of multi-row bolt connection simulation are used for forming the fine simulation process, and the simulation efficiency and the high accuracy of the simulation result are effectively balanced.

The invention provides a wind turbine generator unit simulation control system and method. The system comprises a plurality of signal processing modules. Each signal processing module inputs a signalto a master control system of a device related to the signal processing module in a wind turbine generator unit correspondingly. Each signal processing module comprises an enabled control unit, a signal simulation unit and a physical signal analysis unit. When receiving any one of the global simulation signal, the subsystem simulation signal or the single signal simulation signal, the enabled control units output a first starting signal to the corresponding signal simulation units, and the signal simulation units start. On the contrary, the enabled control units output a second starting signalto the corresponding physical signal analysis units, and the physical signal analysis units input the signal to the master control systems of the related devices to conduct physical analysis. The wind turbine generator unit simulation control system simulates output signals of the devices in the wind turbine generator unit, reduces the requirements for the simulation environment and improves thesimulation efficiency.

The invention relates to the technical field of flight simulator equipment, in particular to a cabin damping base for an aircraft simulator. A top protecting cover is installed on a middle carrying table, and a center console is installed below the middle carrying table in an embedded mode. A display split screen is embedded in a front side panel of the top protecting cover, and a control shifting button is fixedly installed on the end face table top of the middle carrying table. A main operating rod and an instrument assembly are both installed on a front panel of the middle carrying table. A positioner, a radio transceiver device and a radar transceiver are all mounted on the center console. According to the cabin damping base, the overall structure is simple, the operability of each module is optimized, diversified instruments and control units are adopted, and the authenticity of the overall simulator is improved; and moreover, interface UIs of different aircraft types can be further simulated by displaying the display split screen, so that the adaptation capability of the simulator to each aircraft type is improved, the reality sense of flight simulation experience is integrally improved, and the consumption demand of a hard core related enthusiast is met.

The invention relates to a BIM-based fabricated shelter hospital design method, which comprises: obtaining a design drawing of a fabricated shelter hospital, and establishing a three-dimensional overall model according to the obtained design drawing; performing a preliminary performance test on the three-dimensional overall model to obtain overall simulation data, and judging whether the three-dimensional overall model can pass the preliminary performance test or not according to the overall simulation data; performing assembly segmentation on the tested three-dimensional overall model to obtain an assembly type component model; splicing the assembly type component models, and obtaining an assembly type three-dimensional model; and performing a secondary performance test on the assembly type three-dimensional model to obtain assembly simulation data, and judging whether the assembly type three-dimensional model can pass the secondary performance test or not according to the assembly simulation data. The invention has the effect of improving the sealing performance of the assembled shelter hospital.

The invention discloses a numerical simulation method aiming at the multi-particle characteristic of dispersion type fuel. The method is suitable for the overall simulation of a dispersion type fuel element, considers the behaviors and influences of local particles, and comprises the following steps: 1, establishing a geometric model of a three-dimensional equivalent fuel element and a one-dimensional particle ball; 2, assigning the number and positions of one-dimensional particle balls; 3, calculating the burnup of the current time step; 4, the equivalent physical property of the three-dimensional fuel element is calculated, and heat-force coupling calculation is carried out; 5, acquiring the stress and the temperature calculated in the step 4, and taking the stress and the temperature as boundary conditions of a one-dimensional ball model to carry out heat-force coupling calculation; 6, feeding back the particle swelling rate calculated in the step 5 to the three-dimensional fuel element; 7, updating the physical property of the three-dimensional equivalent fuel element material according to the calculation result of the step 5; 8, repeating the steps 4, 5, 6 and 7 at the current time step until the convergence requirement is met; and 9, entering the next time step, and repeating the steps 3, 4, 5, 6 and 7 until all-time calculation is completed.

The embodiment of the invention provides a logistics service testing method and device and electronic equipment. The method comprises the steps of receiving business flow data of a logistics business, wherein the logistics business is composed of a plurality of logistics tasks, and the business flow data at least comprises business descriptions for the plurality of logistics tasks; obtaining resource data according to the received service flow data, the resource data including static resource data identifying the state and attribute of the logistics facility and dynamic resource data identifying the operation of the logistics facility; and based on the obtained resource data, executing business operations for the plurality of logistics tasks, and obtaining a logistics business execution result. According to the embodiment of the invention, the resource data in the static resource pool and the dynamic resource pool are called by simulating the business flow of the logistics business, so that business simulation is carried out, the feasibility of the logistics business is judged, and global simulation and optimization of the logistics business are realized.