1216 results about "Simulation testing" patented technology

A simulation training system having a network system (10) establishing communications among a trainee client domain (20), a trainer client domain (30), a simulation training server system (40), and a simulation training database system (50). In operation, the trainee client domain (20) and the simulation training server system (40) provide an objective simulation certification indicative of a simulated operation of a transportation machine by a simulation trainee. The trainer client domain (30) provides simulation training courseware specifying an objective simulation testing of the simulated operation of the transportation machine by the simulation trainee. And, the simulation database system (50) stores and facilitates a viewing of the objective simulation certification of the simulation trainee.

A semi-physical simulation testing system of moon soft-land guidance, navigation and control consists of a three-dimensional translation analog module, a three-dimensional turning analog module, a control computer, a simulation computer and a ground survey and master-control computer. The three-dimensional translation analog module and the three-dimensional turning analog module adopt a practicality modeling. Wherein, the three-dimensional translation analog module is used to imitate an orbit motion of a lander relative to the moon surface. A sand table of the moon surface is used to imitate ground features of the moon. The three-dimensional turning analog module is used to imitate an attitude motion of the lander. And other well-developed regular sensors, executing agencies, lander dynamics and kinematics can be replaced by accurate mathematical models built up by the computer. Compared with mathematical simulation, the system can make a GNC proposal and algorithm more effectively and truly verified. Compared with full-practicality analogue system, the system has advantages of low development costs and easy operation.

PCT No. PCT/US96/16332 Sec. 371 Date Feb. 25, 1998 Sec. 102(e) Date Feb. 25, 1998 PCT Filed Oct. 11, 1996 PCT Pub. No. WO97/14102 PCT Pub. Date Apr. 17, 1997A synthetic creature (10) in which links (26), representing limbs, are loosely connected by joints (28) to independently interact and implement the physics of everyday life-like actions (18) in a character (16). Elements of mass, positive weight (46), and negative weight (48) are independently handled to mimic the closed-loop control characteristics of real animals. The synthetic creature (10) uses intelligent appearing behaviors (20) built up out of the actions (18) and recursively arranged in a hierarchical behavior tree (72) to cooperate and compete in a run-time computer (202) to give a feeling of autonomy and awareness. Further taught is an authoring environment (200) of tools used to author the character (16), actions (18), and behaviors (20) of the synthetic creature (10), which provide author feedback and simulation testing capability at the various layers (12) of the synthetic creature (10).

The invention discloses an RT-LAB based microgrid simulation testing system. The system comprises an RT-LAB simulation system, a DSP physical system, a power amplifier, a microgrid physical simulation system and a microgrid monitoring system; the RT-LAB simulation system is used for building microgrid and distribution network simulation models and providing a real-time simulation environment; the DSP physical system is used for producing a control signal to a converter circuit built in the simulation system; the power amplifier is used for connecting the RT-LAB simulation system and the microgrid physical simulation system; the microgrid physical imitating system is used for forming a digital physical microgrid with the RT-LAB simulation system and accepting the monitoring and dispatching control of the monitoring system; the microgrid monitoring system is used for monitoring the DSP physical system, a microgrid digital simulating model and the physical simulation system. According to the system, the microgrid and distribution network simulating models are built on the RT-LAB, the microgrid physical simulation system is provided, so as to truly simulate the running states of a power system and the microgrid; the system has the advantages of real-time simulating, online parameter adjusting, and being rich in interfaces, rich in testing type, flexible to switch the testing mode, simple to operate, safe and reliable, efficient and economical.

The invention relates to a CTCS-3 level train control system vehicular device simulation testing system and testing method. The system provides a user interface for selecting and executing a testing script, a vehicular device is tested by simulating running of a train on a line, and data in the testing process are recorded and used for subsequent analysis. The simulation testing system comprises a scene controller module, a train dynamics simulation module, a ground equipment simulation module, a data recording module, a station graph drawing module and a GUI (graphical user interface) module, wherein the scene controller module is used for reading and distributing the testing script and the testing data and controlling the testing process, the train dynamics simulation module is used for calculating the speed and the distance of the rain running on the line, the ground equipment simulation module is used for transmitting rail circuit information, transponder messages and wireless messages to the tested vehicular device, the data recording module is used for recording various testing result data, the station graph drawing module is used for drawing a station graph and displaying the position of the train on the line, and the GUI module is used for providing input testing initial information for testers, simulating driving of the train and repeating a graphical interface for the running state of the train in the testing process.

The invention provides a CBTC (Communications Based Train Control) signal system simulation testing platform, which comprises a signal bus, a simulation vehicle-mounted and simulation vehicle system, a simulation station, a simulation rail side system, a three-dimensional vision system and a testing platform management system, wherein the simulation vehicle-mounted and simulation vehicle system, the simulation station, the simulation rail side system, the three-dimensional vision system and the testing platform management system are mutually connected through the signal bus. By applying the invention, an integral solution including vehicle, scheduling and signal systems can be checked and demonstrated; a signal system can be subjected to function and performance tests indoors, and failure injection conditions which can not be simulated in various sites can be carried out indoors, thus testing means are enriched and safety of the system is improved; and simulation checking under the condition of multiple vehicles can be passed, a method for analyzing the railway operation capability is deeply researched, and the reference is provided for the layout of signal devices.

A testing apparatus which is suitable for applying a stress load to a test specimen is provided. The testing apparatus may be used to simulate lithostatic stress on a test specimen, which may be, for example, a portion of a geologic formation. The testing apparatus may also be used in a method of evaluating the expected production of fluids obtainable from in situ pyrolysis of oil shale.

A method and system are disclosed that utilize the expressiveness of hardware description languages for selectively disabling instrumentation during simulation of a digital circuit design. According to the present invention, an instrumentation entity, described utilizing a hardware description language to include an output signal to indicate an occurrence of an event during simulation, is implemented into a simulation model of a digital circuit design. Next, the output signal is associated with a unique output storage element. Finally, a disable mechanism uniquely associated with said output signal is provided, such that the output signal may be selectively masked by disabling the storage element during simulation testing of the digital circuit design.

The disclosure is concerned with the testing of system level functionality involving several Protection, Control and Measurement (PCM) Intelligent Electronic Devices (IEDs) of a Substation Automation (SA) system for IEC 61850 compliant substations. An extensive testing of all conceivable control or protection functions/applications of an extended SA system comprising a large number of IEDs with a multitude of configurations is facilitated by simulating at least one of the IEDs in a testing device. Hence, only a limited number of IEDs are physically present as individual devices in a test environment, the behaviour of at least one further IED being simulated by a dedicated testing device with appropriate data processing means. The testing device sends network messages indicative of the behaviour of the simulated IED according to its communication and device configuration over a substation communication network to the physically present IED to be tested. The proper working of the configured IED functions, i.e. the expected correct action as triggered by the testing device, are then verified.

The invention relates to a strapdown inertial/satellite integrated navigation detecting system and a simulation testing method thereof. The system comprises a strapdown inertial subsystem, a satellite navigation subsystem, a navigation module and a control and display module, wherein the control and display module is connected with the strapdown inertial subsystem and the satellite navigation subsystem respectively to transmit track information; the strapdown inertial subsystem and the satellite navigation subsystem are respectively connected with the navigation module to transmit angular speed, accelerated speed and satellite signals; the output end of the navigation module is connected with the control and display module to feed an integrated navigation result back to the control and display module to form a closed-loop system. The system has real error characteristics. According to the system, optional tracks can be generated and do not need to be carried by actual carriers, so that the research and development cycle of an integrated navigation system is shortened, and the research and development cost is reduced; the real-time dynamic simulation on carrier movement according to a preset track can be realized and finished, and the universality is very strong.

The invention relates to a muddy water balance type shield simulation testing system. In the structure of the system, a model box for holding soil is fixed on a base; a refrigeration freezing device is communicated with a freezing pipe in the model box; the front part of a shield machine enters the model box through a guide sleeve on the side of the model box; a cutter disk at the front part of the shield machine is connected with the output shaft of a gearbox of a hydraulic power system through a main shaft; jacks at the left and right sides of the shield machine are connected between the model box and the gearbox; a space between a partition plate behind the cutter disk of the shield machine and the cutter disk forms a muddy water cabin; and an injection pipe of a muddy water pot, whichis connected with an air pressure boosting device, penetrates into the shield machine from the tail part of the shell of the shield machine. The system provided by the invention can simulate the tunneling process of the muddy water shield machine in a submerged tunnel construction with high water pressure and can synchronously record soil pressure, water pressure, displacement and the tunneling parameters of the shield machine, thereby finding out and analyzing the mechanism and conditions of muddy water pressure balance country rock and providing more reliable experiment basis for submerged tunnel construction and the design of a muddy water shield machine.

The invention discloses a physical simulation system and method for fracture propagation in shale. The system comprises a drilling rig, a sealing machine, a machine tool, a true triaxial physical simulation testing machine, a hydraulic fracturing servo pump pressure control system, acoustic emission three-dimensional space location monitoring equipment and an industrial CT (computed tomography) machine, wherein the drilling rig, the sealing machine and the machine tool are jointly used for processing acquired shale into a fracturing sample; the true triaxial physical simulation testing machine is used for loading simulated three-dimensional ground stress to the fracturing sample; the hydraulic fracturing servo pump pressure control system is used for providing a fracturing fluid for the fracturing sample, so that a hydraulic fracturing process can be simulated; the acoustic emission three-dimensional space location monitoring equipment is used for monitoring the simulated hydraulic fracturing process in real time; the industrial CT machine is used for preforming tomography scanning on the fracturing sample before and after hydraulic fracturing. The physical simulation system for fracture propagation in the shale can be used for researching fracture initiation, expansion and extension laws of anisotropic shale in the hydraulic fracturing process, so that fracture information can be distinguished more accurately, high-precision basic data are provided for fracturing construction design, technical support is provided for site fracturing construction, and the yield is increased.

The invention relates to a multifunctional assembly type physical similarity testing system for geotechnical engineering. The multifunctional assembly type physical similarity testing system is characterized by comprising a model box, a loading device and a data acquisition unit, wherein the model box comprises a left side plate, a right side plate, a front side plate, a rear side plate and a bottom plate which are detachably assembled; the loading device comprises a test rack, a sensor, a jack and a control panel, the jack can be glidingly arranged on the test rack in horizontal transverse direction and/or horizontal longitudinal direction and located above the model box, the sensor is arranged above the jack, and the control panel is connected with the jack and the sensor and controls and records data information of the jack and the sensor; the loading device is arranged above the model box; the data acquisition unit is used for acquiring and recording data information of a geotechnical engineering simulation model in the model box. The multifunctional assembly type physical similarity testing system has the advantages that pertinence and accuracy during testing are improved, the rate of utilization of the testing system is increased, and the system can be applied to simulation testing of geotechnical engineering issues such as a slope, excavation of a foundation pit, a pile foundation, a composite foundation, soil anchoring and the like.

A simulation testing method for partition application software of an embedded system comprises five steps: step one, building a testing model; step two, generating testing configuration information and a virtual partition code according to the testing model; step three, writing a testing script, and writing a response action for an allocated event occurring during the testing process; step four, performing testing on a partition application to be tested; and step five, collecting and analyzing the testing data. The simulation testing method for the partition application software of the embedded system can be implemented in a development and integration test phase of a partition embedded software applicationand can test or verify the execution sequence, the scheduling performance and the interface communication function of the partition embedded software application. The technical scheme of the simulation testing method for the partition application software of the embedded system comprises the steps of utilizing a calculation and storage unit of a core operating system, simulating the dynamic behaviors of other partition applications on line through a virtual partition mode, and exerting testing actuation to the application to be tested and receiving response. The simulation testing method for the partition application software of the embedded system has a broad application prospect in the technical field of software testing.

The invention belongs to the technical field of vehicle testing, and discloses a digital simulation testing device for an intelligent vehicle. The device is provided with computers, a simulation vehicle, a display, a network interface and a physical interface, wherein the simulation vehicle is connected to one computer through one interface, display equipment is electrically connected to one computer, the computers are connected to a network system through interfaces, and the intelligent vehicle can be subjected to simulation testing in a laboratory environment by utilizing the device. According to the device, the intelligent vehicle can be subjected to simulation testing in the laboratory environment in a non-operating environment, the emission of tail gas is avoided, and the device has the advantages of being accurate, fast, safe, repeatable, economical and environmentally friendly and has an irreplaceable effect in research, development, verification, test and inspection of the intelligent vehicle.

An integrated circuit (IC) is provided. The IC includes an RF transmitter and an RF receiver. The RF transmitter is configured to generate an RF signal in response to an analog test signal from a test signal generator of a module circuitry that is external to the IC. The RF receiver is configured to generate an outgoing signal according to an input RF signal, and to report the outgoing signal to the module circuitry. The module circuitry performs a test analysis on the RF signal generated by the RF transmitter or on the outgoing signal generated by the RF receiver to determine a test result. The test result is reported to a test equipment having no RF instruments.

The invention relates to a method for building an intelligent substation relay protection cooperation simulation testing system. Based on a Windows multithreading operating system of a PC, aiming at related requirements for IEC61850 communication and digitization protection testing, and through reasonably allocating task priority and dispatching and communication among the tasks, a certain type IED function produced by a manufacturer can be realized on the PC through leading-in a CID (configured IED description) document representing external characteristics of different manufacturers, and the mutual coordination, interlocking and shutting relations among the IED provided by different manufacturers in process layers and spacer layers of intelligent substations can be on-line detected without needing a real IED device and under the premise that the main wiring manner of different substations is adopted, so that consumption of manual labor and material resources can be greatly reduced; and the existing IED does not stop operating when the intelligent substation is expanded and rebuilt or the IED is replaced, thereby avoiding careless mistake and error during the disassembly, transportation and reinstallation processes of the IED device.

The simulation method includes a step of measuring a predetermined characteristic from a real device by using test equipment that supplies a test signal to a device-under-test (DUT); a step of saving Response Data generated from measurements obtained by measuring in a file; and a step of verifying activities of a test plan program in a simulation system that simulates the test equipment by using the Response Data saved in the file.

The invention discloses an anti-interference method for high-frequency partial discharge signal detection. The anti-interference method includes the steps of 1, building partial discharge signal simulation testing circuit system to acquire signals which are generated from local discharge pulse signals carrying noises after passing through the partial discharge signal simulation testing circuit system, and analyzing characteristics of the signals within a wavelet domain to acquire optimal parameter that is denoised by a discrete wavelet transform based threshold process; 2, acquiring the field partial discharge signals carrying noises, and acquiring the coefficient of the partial discharge signals within the wavelet domain by denoising the partial discharge signals carrying noises by the discrete wavelet transform based threshold process according to the optimal parameter; 3, performing wavelet reconstruction according to the coefficient of the partial discharge pulse signals within the wavelet domain to acquire the denoised partial discharge signals. The signals are denoised by firstly performing threshold processing to decomposition coefficients of different dimensions by threshold selection and then performing wavelet transform.

The invention belongs to the field of tunneling in geotechnical engineering and underground engineering, and particularly relates to a centrifugal experimental simulation testing device for surface subsidence induced by city shield tunnel construction. The testing device mainly comprises a model box, a small displacement meter bracket, a big displacement meter bracket, a tunnel excavation device, a linear variable differential transformer (LVDT) displacement meter and the like, wherein the model box is a hollow cuboid; the small displacement meter bracket and the big displacement meter bracket adjust the LVDT displacement meter along the horizontal direction and the vertical direction, so that the surface subsidence and the soil layer deformation can be measured; and the tunnel excavation device can simulate the soil body deformation caused by stratum loss by discharging a certain volume of water. Through the device, the deformation influence of the city shield tunnel construction on surrounding soil layer can be more conveniently, really and effectively simulated, so more real and accurate experimental data can be provided for tunnel design and construction, and high efficiency and safety of the city shield tunnel construction are guaranteed.

The experiment platform includes experimental solid model of underground in 1:5 large scale, fire source system, ventilation and smoke extraction system, fire detection alarm system, experimental measurement and collection system, and data analytic system. Structure of multistory building of the solid model includes interzone tunnels, platforms, station halls and facility rooms etc. Modularized design is adopted. Fire source system can simulate different scenes of fire, and generate hot smoke gas of fire nigh true. Power and fuming quantity of the fire source system is determined based on theoretical analysis from model similitude. The experiment platform can generate growth curve of different power of fire. The experiment platform is in use for carrying out experimental studies: happening and growing mechanism of fire, and poison gas outspread inside stations of underground as well as control technique. The invention is applicable to different structures of station.

The invention relates to a method for calculating the expected car following distance in driver car following behavior analysis. On the basis that drivers design multiple different driving scenes during data collection on a car surrounding simulation testing platform, driving data is collected aiming at the drivers; the car following behavior feature parameter data set of each driver is extracted from the driving data; the feature behavior parameter data sets of all the drivers are clustered into several different driving classifications, and are adopted as training data sets; then the training data sets are utilized for carrying out classification judgment on the current drivers to be classified. Different car following behaviors are classified, the efficiency of collecting car following behavior data is improved, the cost is low, and good safety is achieved. The longitudinal driving behaviors of the drivers can be simulated through the Gussian process, the individualized expected car following distance can be provided for the current drivers, and the active adaptive capacity of an auxiliary driving system to different drivers is improved.