The concept and application of fire system enginee

2022-07-29
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The concept and application of system engineering

system engineering is a subject that studies the dynamic trend of complex information feedback systems

system engineering is based on cybernetics, control engineering, system engineering, information processing and computer simulation technology to analyze and study complex systems over time. 4. Automatic storage: automatic storage of experimental data and experimental curves to prevent data loss caused by forgetting to save; Behavior patterns

system engineering regards the behavior mode of the system as determined by the information feedback mechanism within the system. By establishing the system engineering model, the dynamic relationship among the structure, function and behavior of the system can be studied in order to find a better system structure and function

through the cooperation of human and computer, system engineering can give full play to the key performance of human management to realize the advantages beyond the ability of solution, analysis, reasoning, evaluation, creation, etc., stop starting the oil pump on the high-voltage line or check the cause, and also make use of the computer's high-speed calculation and tracking ability. In this way, we can test and analyze the product system of aluminum-plastic film for lithium-ion battery purchased from Xinlun composites by suneng technology, so as to obtain rich information and provide a powerful tool for selecting the optimal or sub optimal system scheme

systems engineering is a subject that studies and analyzes the dynamic trends of complex information feedback systems. Based on cybernetics, control engineering, systems engineering, information processing and computer simulation technology, systems engineering studies the behavior patterns of complex systems over time

system engineering regards the behavior mode of the system as determined by the information feedback mechanism within the system. By establishing the system engineering model, the dynamic relationship among the structure, function and behavior of the system can be studied in order to find a better system structure and function

after the Second World War, with the progress of industrialization, various social problems such as urban population, employment, environmental pollution and resources have become increasingly serious. It is urgent to use new methods to comprehensively study these problems

After 1955, computer technology became more and more mature and popular, so system engineering came into being. Forrester of Massachusetts Institute of technology first proposed industrial dynamics in 1957. Later, the research object developed from engineering system to social system, and used this method to establish the world model and the American national model. However, the research methods in various fields are essentially the same, so it was named system engineering in 1972

system engineering studies complex systems. In addition to the characteristics of general large-scale systems, such as complex structure, numerous factors, sometimes delayed system behavior, and the change of internal parameters with time. The complex system considered by system engineering has some other characteristics, such as the system is a high-order, multi loop, nonlinear information feedback system; The behavior of the system is counter intuitive, that is, its behavior is often contrary to the expected results of most people; There are some main feedback loops in the system; After multiple nonlinear feedbacks, the system tends to be insensitive to external disturbances and insensitive to changes in system parameters

from the perspective of system methodology, system engineering is the unification of structural method, functional method and historical method. It has a unique set of tools and techniques to solve complex system problems, such as the concepts of two-way causal loop, feedback, flow potential and rate

the system engineering model can accommodate a large number of variables, generally up to thousands or more; It is a structural model, through which we can fully understand the system structure and grasp the behavior of the system, not just rely on data to study the behavior of the system; It is the laboratory of the actual system

through the cooperation of human and computer, system engineering can not only give full play to the advantages of human's ability to understand, analyze, reason, evaluate and create, but also make use of the high-speed computing and tracking ability of computer. So as to experiment and analyze the system, so as to obtain rich information and provide a powerful tool for selecting the optimal or suboptimal system scheme

the system dynamics model is mainly analyzed and calculated through simulation experiments, and the main calculation results are the curves of various variables changing with time in a certain period in the future. In other words, the model can deal with the problems related to high-order, nonlinear and multiple feedback complex time-varying systems (such as social and economic systems)

to establish a system engineering model, the first step is to determine the purpose of system analysis; The second is to determine the system boundary, that is, the object and scope involved in the system analysis; After that, the causality diagram and flow diagram are established; Then write the system engineering equations; Finally, the simulation test and calculation are carried out

common systems engineering models include world dynamics model, which is used to study global development strategies; The national dynamics model is used to study national politics, economy, military affairs and foreign relations; Urban dynamic model, studying urban development strategy; The regional dynamic model studies the development strategy of a specific geographical region; Industrial dynamics model to study the development strategy of industrial enterprises; Growth dynamics model, including medical dynamics model for studying the occurrence, development and prevention strategies of diseases; Study system engineering models for crops, horticulture, poultry raising, pest control and ecological protection

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