fuzzy membership function 中文意思是什麼

fuzzy membership function 解釋
模糊元函數
  • fuzzy : adj. 1. 有茸毛的,覆著細毛的,如茸毛的。2. 不清楚的。fuzziness n.
  • membership : 成員人數
  • function : n 1 功能,官能,機能,作用。2 〈常 pl 〉職務,職責。3 慶祝儀式;(盛大的)集會,宴會。4 【數學】...
  1. Rs theory was proposed by pawlak in 1982. the focus of rs theory is on the ambiguity caused by limited discernibility of objects in domain of discourse. fuzzy set theory was proposed by zadeh in 1965 and hinges on the notion of a membership function on the domain of discourse, assigning to each object a grade of belongingness in order to represent an imprecise concept. the combination of fuzzy sets and rough sets are a new study and is very value in fact

    粗糙集理論是波蘭數學家z . pawlak於1982年提出來的兩種處理不確定和不精確數據的理論,是通過等價關系來研究對象之間的不可分辨關系;模糊集理論是美國控制論專家zadeh於1965年提出的一種處理非精確的現象的數學工具,是利用集合的特徵函數來處理邊界的不可定義性,在模糊集合中並沒有應用對象之間不可分辨性的概念。
  2. Based on general fuzzy controller, the thesis gives how the controller ' s performance is influenced by factors of proportionality, membership function and defuzzification method

    以常規模糊控制器設計為基礎,探討了量化因子和比例因子、隸屬函數、非模糊化方法等對控制器控制性能的影響。
  3. The effect of the profile of membership function and the defuzzification algorithm on the capacity of fuzzy controller is studied systematical, and a practical self - adaptive fuzzy controller is designed

    研究了隸屬度函數及解模糊演算法對模糊控制器性能的影響,設計了實用的自適應模糊控制器。
  4. Membership function editor, control rule editor, five fuzzy reasoning methods and three defuzzification methods are supplied. back up the whole process in designing fuzzy controller. especially it can integrately run with forcecontrol and kingact configuration software

    提供了隸屬函數編輯器、控制規則編輯器、五種模糊推理方法和三種清晰化方法,支持模糊控制器開發的全過程。
  5. The gpss have one output and two inputs which are speed error and its derivative. selecting triangular function as fuzzy variable ' s membership function, mamdani max - min synthetic method as fuzzy inference method and centroid method as denazification method, fuzzy control rules are given according to the control expectation of governor and the experience of operating staff

    這種模糊gpss採用二輸入單輸出結構,以機組轉速誤差及其導數為輸入量,以三角形函數作為模糊量的隸屬函數,根據水電機組穩定控制要求和操作人員的經驗制定控制規則,以mamdani的max - min合成法和重心法分別作為模糊推理方法和清晰化方法。
  6. Based on the theory of safety evaluation and risk assessment, this paper first ascertained the evaluating indices affecting ships ' seaworthiness and classified them according to their importance degrees by experts investigation, and used judgment matrix method to calculate weight of the evaluating indices, and then got the membership function by fuzzy collection theory, and finally established the mathematical model to realize a fuzzy comprehensive evaluation to ships ' seaworthiness

    摘要根據安全評價理論、風險評估理論,通過專家調查方式確定影響船舶適航性的評價指標並按照重要程度進行分類,然後採用判斷矩陣法計算評價指標的權重,運用模糊集合理論確定隸屬函數,進而建立數學模型,實現對船舶適航性的模糊綜合評價。
  7. A method of fuzzy optimization design based on genetic algorithm is presented as a new method of parameter optimization design for dc double closed loop speed adjusting system. the method covers three steps. firstly, speed overshoot rate and settling time are chosen as performance indice according to the demand of engineering. these indice are normalized by using fuzzy membership function and then weighted to form objective function of optimization model of the system. secondly, the dynamic response curve of the system with corresponding parameters and peoformance indice are obtained by computerized numerical calculation and simulation. finally, parameters of engineering design are expanded as searching space ; and parameters of speed regulator and current regulator are taken as genes in chromosome. these genes in searching space are optimized to get best solution by way of genetic algorithm. as shown by experimental results, the parameters designed by this method are capable of significantly improving performance indice of the system, which proves that it is a practical and effective method

    提出一種基於遺傳演算法的直流雙閉環調速系統參數優化設計方法.根據工程技術的要求,選用速度超調量和過渡時間作為參數優化性能指標.將該指標用模糊隸屬度函數歸一化,再加權平均形成系統優化模型的目標函數.採用計算機數值計算方法,通過模擬獲得系統對應參數的動態響應曲線及其性能指標.最後以工程設計的參數為搜索范圍,以速度調節器和電流調節器的參數為染色體中的基因,通過遺傳演算法在搜索范圍中優化這些基因,獲得優化解.實驗結果表明,所設計的參數能使系統性能指標有顯著提高
  8. Taking load uncertainties, infeasibility problem and multiple objection of the reactive power optimization in the radial distribution system into consideration, loads are modeled as fuzzy interval numbers. fuzzy power flow is proposed based on fuzzy interval load for the more practical membership function of line losses rate and maximal voltages offset. this thesis presents multiple objection model of the reactive power optimization considering uncertainties using the fuzzy set theory

    對配電網電壓無功優化問題中負荷的非概率性的不確定性問題、多目標問題、約束不可行性問題進行了研究,用模糊區間來描述實際的負荷情況,並用負荷的模糊區間值計算配電網的潮流,得到有功功率損耗和電壓的模糊區間值,使網損率和節點電壓最大偏移量的隸屬函數更接近實際情況;將改進遺傳演算法與模糊集理論相結合,通過求解多目標函數和約束條件的模糊集合的交集,得出網損率和節點電壓最大偏移量最小的最優運行狀態。
  9. The stress is basing coal - fired boiler inflammation system feature and control demand to design a kind of fuzzy - pi controller on based of genetic algorithm to control it. the controller refers the error and its variety rate as its inputs. and, in order to make the control qualities much better, concerns them as the performance index to optimize the membership function of the fuzzy variables and the pi ' s controller parameter by means of online adjujsting the genetic algorithm, inflammation system steam pressure loop and economic inflammation loop

    重點是針對燃煤鍋爐燃燒系統的特點和控制要求,設計了一種基於遺傳演算法的模糊- pi復合控制器對其進行控制,該控制器以偏差、偏差變化率作為輸入量,通過遺傳演算法在線調整模糊控制器的模糊變量隸屬度函數和pi控制器的參數,從而達到優化模糊控制規則和pi控制器參數的目的,實現燃燒系統的蒸汽壓力迴路和經濟燃燒迴路的控制要求。
  10. In regard to research method, this paper adopted properties combining the qualitative and quantitative supply chain, and evaluated supply chain informationization. membership function, regular trapezium fuzzy mathematics, integral fuzzy mathematics and triangle fuzzy ahp were used to build up in index system. this paper innovated in the following points

    在研究方法上,本文基於定性和定量相結合的原則,運用模糊數學的隸屬函數、正梯形模糊數、積分解模糊法等來對評價體系中的指標進行評價並量化,並綜合運用模糊數學的方法對供應鏈的信息設備利用率進行評價計算,最後運用基於三角模糊數的模糊ahp方法,來對供應鏈的信息化水平進行綜合評價。
  11. In order to realize the fuzzy information processing method in weapons storage information system, the problems, such as how to abstract the appearance information automatically, how to decide parameter of membership function, are solved

    為在武器庫存信息系統中實現模糊信息處理方法,本文還解決了外觀信息自動提取、隸屬函數參數確定等問題。
  12. The dissertation refers to comparatively full literatures in the field of vsc, and the development history and characteristics of vsc are summarized, and the elementary concepts, elementary definitions, elementary properties, elementary principles and design methods are particularly introduced, and the causes of the chattering phenomenon are systematically analysed, and the study status of the chattering phenomenon and the main methods to eliminate the chattering are elaborated. for the deficiencies of traditionary methods, three improved methods are developed, which are improved exponent reaching law solution, variable boundary layer solution and the solution by adding an auxiliary continuous control term. for uncertain linear systems, an adaptive fuzzy integral variable structure control stategy ( afivsc ) is put forward to eliminate the chattering around the sliding plane, which introduces fuzzy logic to soften the non - linear discontinuous sig nal in the control variable and utilizes adaptive theory to adjust output membership function according to how much the uncertainty of the system is

    比較全面地查閱了關于變結構控制理論的文獻,總結了滑模變結構控制的發展歷史和特點,詳細介紹了變結構控制的基本概念、基本定義、基本性質、基本原理以及設計方法;系統分析了變結構控制系統抖振產生的機理,並闡述了國內外目前對抖振問題的研究現狀以及消除抖振的主要方法;針對傳統抑制和消除抖振方法的不足,改進了傳統方法,得到了三種新的消除抖振的方法? ?即改進的指數趨近律法、可變邊界層法和附加連續項法;針對不確定性線性系統,在變結構控制策略中引入模糊邏輯和自適應理論來消除滑動平面上的抖振,提出了一種自適應模糊積分變結構控制方案( afivsc ) ,利用模糊邏輯來柔化控制量中非線性不連續部分,採用自適應理論,根據系統不確定性大小在線調整模糊輸出量的隸屬函數,另外,鑒于模糊控制本質上是有靜差的,所以本文選擇了帶積分項的切換函數,由於積分項的存在使系統較正為無靜差系統。
  13. The paper contains two segments : static and dynamic detection, evaluation and alteration. static monitoring contains apparent and load detection. the model of multi - layer fuzzy evaluation and the bridge using capability grade membership function are used in the appraisal of the bridge technical condition of the highroad criterion technic and maintenance, and then the data and excel of the bridge compontents. the bridge grade membership function can be deduced from the factor theory domain. grade theory domain and the bridge using capacity grade membership function, then by baseding the connection of weigh and factor judgement matrix and judging gradually, finally the bridge comprehensive evaluation synthetical judging grade will be figured out

    在表觀檢測中將多層次模糊評價模型和橋梁使用性能等級隸屬函數引入《公路技術養護規范》中的橋梁技術狀況等級評定中,並對此規范中的橋梁部件缺損狀況評定狀況進行修正;通過建立因素論域、等級論域以及根據王光遠教授提出的利用典型函數形式來建立橋梁使用性能等級隸屬函數,通過權重和因素評判矩陣的關系來運算,逐級評判,最終求出橋梁綜合評判等級。
  14. Analytical method of fuzzy reliability based on equivalent normal membership function

    模糊可靠性分析的等效正態隸屬函數法
  15. In the light of the fuzzy property of influence factors of air resistance in roadway ventilation, this paper establishes five standard patterns based on analyzing the influence factors, uses fuzzy recognition method to determine the membership function of the influence factors, then rationally evaluates the value of roadway ' s air resistance and whether the roadway ' s ventilation effect is good or not

    摘要針對巷道中通風阻力影響的模糊性,在分析其影響因素的基礎上,建立了5個標準模式,運用模糊識別的方法確定各因素的隸屬函數,從而合理評判巷道中通風阻力大小與巷道通風效果的優劣。
  16. Using endogenesis and exogenous geographical points of soil phosphorus equilibrium as the two turning points in the s - type membership function, based on fuzzy mathematics, to evaluate the renewing status and fertility of xiongxian country ' s soil phosphorus system. the results are that complete p treat is the best, ck and - p are in the lowest, 1 / 2p mediates. for the sustainable fertilization strategy, 1 / 2p is the best scheme, according to the evaluation of various treatments " exogenous renewing coefficient of soil phosphorus

    利用模糊數學隸屬函數s型模型,把雄縣土壤磷素外源、內源地理平衡點分別作為上下兩個閾值,對該土壤磷素系統更新狀況和磷素肥力進行評價,全p處理土壤磷素系統更新狀況最佳,磷素肥力水平最高, ck 、 - p處理磷素肥力水平最低,土壤磷素系統更新狀況最差, 1 2p處理居中。
  17. If either of strength and stress is stochastic variable and another is fuzzy variable, the. fuzzy variable can be transformed to section number on the assumption that the probability of fuzzy variable taking some points in that section is proportional to its value of membership function respectively, then the probability of structural fuzzy event is transformed to general probability with stochastic strength and stress variables and can be solved by general probability theory

    當強度和應力之一為隨機變量,另一個為模糊變量時,提出將模糊變量通過模糊集合截集轉換為區間數,並假定模糊變量在此區間取值的可能性與相應的隸屬函數值成正比。採用上述處理后,結構模糊事件的概率即轉化為相應的普通事件概率,可按應力和強度為隨機變量,用常規可靠性理論進行求解。
  18. This paper introduces an evading obstacles method of mobile robot which is in an uncertain environment, and the mobile robot can evade the obstacles detected by means of fuzzy control algorithm, which adopts fuzzy membership function with real physical content

    摘要闡述了在不確定環境下,機器人通過在探測過程中採用基於實際物理意義的隸屬函數的模糊演算法來躲避障礙物的方法。
  19. In order to solve the above - mentioned problems, this paper makes the comfortableness index objective function directly and by genetic algorithm, optimize automatically fuzzy membership function and control rules with environment change. by these means, fuzzy inverter air - conditioner will have a true intelligence character

    本論文針對上述問題,直接以空調系統舒適性為多目標優化函數,利用遺傳演算法進化理論對模糊控制系統的隸屬函數和控制規則進行協同自動尋優控制,達到基於遺傳演算法模糊協同智能控制的目的。
  20. In spite of different methods to a fuzzy optimal solution to the two classes of fuzzy linear programming, these methods have similar ideas : first is to fuzzify the objective function and constraints, i. e., to display the definition of fuzzy membership function. second is to transfer the fuzzy linear programming into one general linear programming, based on the fuzzy decision, then we can obtain the fuzzy optimal solution by solving this linear programming

    雖然求這兩類模糊線性規劃的模糊最優解的方法並不相同,但其思想具有相似性:首先是把目標函數或約束條件模糊化,給出他們的隸屬函數的定義;然後給出模糊判決,在此基礎上,規劃最終都可化為求一個普通規劃的解,這個解可看成模糊線性規劃的模糊最優解。
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