Application of the hottest computer simulation in

  • Detail

Application of computer simulation in electrical special operation training

most of the traditional training methods are carried out in the actual system. With the development of industry and science and technology, the scale of the system is becoming larger and more complex, the cost of the system is becoming more and more expensive, and the damage and danger caused by improper operation during training are also greatly increased. Therefore, it is of great importance to improve the safety of system operation, and the key lies in personnel training. In order to solve the training problem, we need such a system, which can simulate the working condition and environment of the actual system, and avoid the danger and high cost when using the actual system. This is the training simulation system

according to the basic characteristics of special operation accidents, human factors are the main cause of accidents. To ensure the safety of electrical special operations, we must control the unsafe behaviors of electrical operators; To control the unsafe behavior of electricians, we must improve their safety technical quality and safe operation skills, which mainly depends on training. At present, electrician special operation training mainly adopts the method of teaching demonstration and physical simulation platform training. Because of the harmfulness of electricity, there are also many dangers in training on the physical simulation platform; In addition, the number of physical simulation platforms is limited, which is limited by time, place and so on, and cannot be used repeatedly by personnel. These factors directly affect the efficiency and quality of training. This requires us to design a more effective electrical special operation simulation training platform with the advantages of good repeatability, high safety, good economy and high efficiency

computer simulation training principle

simulation is a multidisciplinary comprehensive technology based on similarity principle, system technology, information technology and relevant professional technology in the application field, with computer system and related physical effect equipment and simulators as tools, accounting for 6% of the total export of extruders in China. It uses models to study the system

schematic diagram of computer simulation training. The composition of the computer simulation training system is shown in Figure 1, which is mainly composed of three modules, namely, the foreground multimedia training simulation interface, information response and computer background analysis and calculation module. Background analysis and calculation is the core of computer simulation training system. It includes computer simulation model, simulation module, simulation result analysis, resource base and multimedia computer network. The user operates in the foreground, passes the user's operation information to the background through the response module, makes decisions through the judgment and calculation of the simulation model in the background, and passes the decision information from the background through the information processing and response module to the user operation foreground multimedia training simulation interface, so as to realize the interactive operation training

computer simulation modeling. From the perspective of electrical operation, electrician operation should be a continuous operation mode. Therefore, electrician operation can be regarded as a continuous system. Because the continuous system pays attention to continuity, multiple key triggers to control continuity can be set in the continuous system, which is convenient for realizing electrician special operation training on the computer and achieving the expected effect. The number of key triggers to be set by the system can be determined by modeling the simulation control tree (as shown in Figure 2). Where, T represents the top event of the simulation control tree; AI represents the sub event on the simulation control tree (i=1, 2...); Xi represents the event trigger on the simulation control tree (i=1, 2...). The structure function of the simulation control tree is:

t=x1*a1=x1* (x2+a2) =x1* (x2+x1*x3) =x1*x2+x1*x3=x1*x2+x1*x3

the minimum cut set of the simulation control tree is:

msc1:{x1, X2} msc2:{x1, X3}

by calculating the minimum cut set of the simulation control tree, It can be determined that the number of triggers that should be set in the system n1=3 (that is, the number of semaphores) and the number of simulation animation modules n2=3 (that is, the number of processes). In this way, the simulation control can be designed according to the semaphore and process

information processing and response. The design method of information processing and response is semaphore and process. Process is the basic unit of resource allocation and independent operation. The life cycle of a process can be divided into a group of States, which characterize the whole process. In the process of running, the state of the process is constantly changing due to the concurrent operation of the system and the results of mutual constraints. Generally, a process can be divided into at least three basic states: ready state, execution state and blocking state

the process is not in a fixed state, and its state will change with its own progress and external conditions (as shown in Figure 3). The process state change diagram illustrates the possible states of each process in the system and the possible reasons for these states to change


semaphore is a definite binary (s, q), where s is an integer variable with a non negative initial value, and Q is a queue with an empty initial state. The integer variable s represents the number of certain resources in the system. When its value is greater than 0, it represents the number of currently available resources in the system; When its value is less than 0, its absolute value represents the number of processes blocked by requesting such resources in the system. Except for the initial value of the semaphore, the value of the semaphore can only be changed by operation. Use the state change of semaphores to manage processes and resources

training interface ● mainstay of high strength steel automotive materials and system object-oriented design technology. Object-oriented method is similar to people's natural way of thinking about practical problems. It regards the objective world (that is, the problem field) as composed of some interrelated things (that is, objects). Each object has its own internal state and motion law. The interaction and interconnection between different objects constitute a complete objective world. The solution of the problem is described by the communication between objects. Using the concept of object to describe the objective world has the advantages of intuition and understandability

message is a data structure for communication between objects, and objects are described by passing messages. Applying object-oriented technology to the field of simulation breaks through the limitations of traditional simulation methods in theory. It models the real world by the objects that make up the system and the interaction between objects, realizes a smooth transition from the analysis, design to implementation of the problem field, is consistent with the natural thinking process of people to understand the world, and increases the intuition of simulation research, It provides an effective method for simulation modeling of complex systems. Therefore, in the design of electrical safety training simulation system, we use object-oriented technology

composition of electrical special operation simulation training system

from the perspective of electrical training content, electrical special operation simulation training system can be composed of tools, instruments, power, lighting and safe operation. Among them, the tools mainly adopt animation demonstration and explanation. The instrument, power, lighting and safety operation mainly adopt simulation training

according to the specific requirements of electrical special operations, the system should have the functions of demonstration training, training training and training assessment, and its composition is shown in Figure 4. The demonstration training system mainly includes electrical components demonstration module, electrical principle simulation demonstration module, line operation and debugging demonstration module and fault analysis and troubleshooting demonstration module; The simulation training system mainly includes electrician safety operation skill training module and fault analysis and troubleshooting training module; The simulation assessment system mainly includes the assessment module of electrical safety operation skills and the assessment module of fault analysis and troubleshooting

operators first carry out basic training and education for electrician operation through the demonstration training system. On this basis, they integrate theory with practice, enter the simulation training system to learn, and mainly carry out various electrician safety operation skills training (such as instrument selection and wiring) and accident analysis and troubleshooting training. On the basis that the operators have mastered the training contents skillfully, safely and accurately, the training responsible unit arranges the operators for training. This is because the polymers are composed of long-chain elements, and the evaluation results are directly stored in the operator's information database for performance tracking

software design of electrical special operation simulation training system

because there are many contents of electrical special operation simulation training system, here we only take the software design of three-phase watt hour meter wiring training module with transformer as an example to illustrate the design process of electrical special operation simulation training system software

the interface design tools of this training module include Flash MX, Adobe Photoshop and 3ds max; The instrument is designed with OpenGL, Adobe Photoshop and 3ds max; The background design of the system adopts visual c++6.0; The multimedia response of the system adopts flash action

the simulation operation interface of the wiring training module of three-phase watt hour meter with transformer is shown in Figure 5. Among them, G1 ~ G6 are picture control; F1 ~ F12 are control settings; I、P、A、M、C、T、S、? It is state control

six kinds of screens are designed according to the needs of the simulation module, including demonstration training interface, operation training interface, training assessment interface, status group interface, alarm group interface and help interface. The control bar is set in each system interface of the module, and its function description is as follows:

the left training selection key of the main interface is used for trainers to select the training content. Clicking any of the selection keys will initialize the current system, prevent misoperation, and improve the training efficiency and quality

there is a screen call-up control bar on the left of the eyebrow, so it is necessary to keep the horizontal handling direction as far as possible during handling. When the mouse specifies a control button, the screen represented by the button (such as troubleshooting, accident analysis, etc.) will be called out. The button name of the screen is displayed on the right side of the eyebrow, indicating that the screen has been called out

there is a clock and calendar on the right side of the eyebrow for time keeping. The time and date are set or modified by the computer operating system

the square soft keys at the eyebrow foot are the teacher (Training Supervisor) command keys, a total of 12, corresponding to the F1 ~ F12 key positions of the computer keyboard respectively. It is used to display grades, set accidents, put examination questions into storage, select examination questions, set working conditions, set time scales and other controls. The control setting soft key is invisible on the training interface, only visible on the control host of the network, and is operated and set by a specially assigned person. The button name of the screen is displayed on the right of the eyebrow foot, indicating that the control setting has been set. In the user interface, you can apply to the console for assessment training

the square soft key on the right side of the interface is the control key of the real-time state of the electrician simulation training system, which is used to display the training effect and student faults, provide operation information for accident handling, and eliminate faults and implement accident handling through interaction. At the same time, the real-time status information will also enter the personal assessment database of the training staff through the network, which is convenient for teachers and employees to exchange and discuss

electrician operation has both continuous events and discrete events. For this, the system adopts simulation control tree and process control modeling for continuous events and discrete events respectively. In addition, the system adopts object-oriented technology for system design. The system is composed of three parts: simulation operation interface, information response and background analysis and calculation processing

according to the actual requirements of electrician training, the electrician training system is constructed in three parts: demonstration training system, simulation training system and simulation assessment system

Copyright © 2011 JIN SHI