drive via a fuzzy logic controller for speed regulation
fuzzy logic controller for an autonomous mobile robot
... performs measurements of the input variables (input signals, real variables), scale mapping and fuzzification (transformation 1) Thus all the monitored signals are scaled, and fuzzification means ... error, and "large negative" error) As a minimum, one could simply have "positive", "zero", and "negative" variables for each of the parameters Additional ranges such as "very large" and "very small" ... time-optimal control applications [10] As a relatively new control method it provides more space for further improvements Originally advocated by Zadeh [11] and Mamdaniand Assilian [12], fuzzy logic has...
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A fuzzy logic CC PWM three phase AC DC converter
... large (L) generates the inputs and a fuzzy core that performs and extra large (EL) The output variable expresses how quick fuzzyfication, inference and defuzzyfication More in detail, the capacitor ... EqSW adapting the factor k on line A fuzzy logic controller has been used for the regulation of the chargeldischarge speed by Fig The control block diagram of the voltage loop taking into account ... chargeldischarge process would be slow anyway due to the small power factor A faster chargeldischarge process can be achieved with lower CONTROL currents and unity power factor Unfortunately, a large value...
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ỨNG DỤNG BỘ ĐIỀU KHIỂN LOGIC MỜ (FUZZY LOGIC CONTROLLER) TRONG MÁY LÁI TỰ ĐỘNG TÀU BIỂN APPLICATION OF FUZZY LOGIC CONTROLLER TO SHIPS AUTOPILOT pptx
... động tàu Blue Lady có nhiều ưu điểm (xem phần 3.4) Bảng Các tham số điều khiển FIS type Mamdani # Inputs # Outputs AND method OR method max Implication Aggregation max Defuzzification bisector ... chuyên ngành khoa Điều khiển tàu biển, số 10, 2008 [3] N.C.Vinh, The synthesis of trajectory regulator using fuzzy logic theory in a marine vessel autopilot, Gdynia, Poland 2007 [4] Passino K., Yurkovich ... VIỆT NAM 20.11.2008 Các MF đầu điều khiển định ngh a bao gồm mức Các góc o o o bẻ lái đặt mức 5 , 10 35 mức thường sử dụng để giữ hướng tàu, quay trở tàu tạo gia tốc ban đầu tàu bắt đầu quay...
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A programmable logic controller ppt
... Boolean format, similar to Boolean algebra As programming terminals evolved, it became more common for ladder logic to be used, for the aforementioned reasons Newer formats such as State Logic and ... traditional programming languages such as BASIC and C Another method is State Logic, a very high-level programming language designed to program PLCs based on state transition diagrams Many early PLCs ... languages A graphical programming notation called Sequential Function Charts is available on certain programmable controllers Initially most PLCs utilized Ladder Logic Diagram Programming, a model...
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Extensional fuzzy logic controllers for uncertain systems
... to obtain a reasonable, yet trackable, model [92] As early as 1962, Zadeh wrote that to handle biological systems “we need a radically different kind of mathematics, the mathematics of fuzzy or ... extensional fuzzy theories to develop fuzzy controllers that are capable of maintaining the desired performance of uncertain or nonlinear systems and to investigate the advantages on handling uncertainties ... type-1 fuzzy logic Since then, fuzzy logic theory has developed and found applications in database management, operations analysis, decision support systems, signal processing, data classifications,...
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Giao trinh bai tap fuzzy logic toolbox for use with matlab
... điểm thăm dò) Trang (Bản vẽ hình trụ hố khoan 1) Trang (Bản vẽ hình trụ hố khoan 2) Trang (Bản vẽ mặt cắt đ a chất công trình) Trang 10 (Bảng số liệu kết thí nghiệm xuyên tĩnh CPT) Trang 11 (Biểu ... 10…… Hình 9……… Trang HÌNH ẢNH QUÁ TRÌNH XUYÊN TĨNH CPT (Đ a vào 4-5 hình, trình bày trang!! Phải ghi thích hình SV tham khảo cách trình bày trên) Trang PHẦN II BÁO CÁO KẾT QUẢ Trang (Bản vẽ mặt ... khoan, đo kích thước (Hình…) o Theo dõi trình tự khoan o Mô tả đất đá o (SV tự viết tiếp)… Ngày 07/01/2016: - Thực tập nội dung: - Công việc thực : Trang HÌNH ẢNH QUÁ TRÌNH KHOAN THĂM DÒ (Đưa...
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Tài liệu A neural-network-based space-vector PWM controller for a three-level voltage-fed inverter induction motor drive doc
... signals are compared with the output of a single UP/DOWN counter and processed through a logic block to generate the PWM outputs for for for for for (5) for for for for for for for for for for ... -phase P states and performed with the and signals only Similar operations are signals of all the phases and all the The drive performance was evaluated in detail by simulation with the neural ... drive and evaluated thoroughly for steady-state and dynamic performance with a conventional DSP-based SVM The performance of the ANN-based modulator was found to be excellent The modulator can...
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Fuzzy logic current controller for PWM rectifiers
... The advantage of FLC is variable gains The classical PI controller has fixed values of the proportional and the integration gains The FLC has variable outputs gains dependent on values of ... classical PI and FLC current controllers and they are shown in Fig 15 As shown in Fig 1 5a, and Fig.15b performance of the proposed FLC and classical PI -controller are very similar in steady state ... linguistic variables in the universes of error, error change, proportional and integral gain, respectively From reference and actual values, by equation (9) and (IO) are made two input variables There...
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performance of robust controller for dfim when the rotor angular speed is treated as a time-varying parameter
... designed for a frozen value of was not completely guaranteed for other rotor angular speeds An important point that is needed to be emphasized in this particular case is that the performance of the controller ... timevarying and linear parametrically-varying systems International Journal of Robust and Nonlinear Control, 6:929 – 952, 1996 A Packard M Safonov G Balas, R Chiang Robust control toolbox for ... considerably changed for fast parameter variations In order to get better performance level for the controlled system, the designed controller has to adapt to changing of the rotor angular speed...
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A comparative assessment of prediction capabilities of modified analytical hierarchy process (MAHP) and Mamdani fuzzy logic models using NetcadGIS for forest fire susceptibility mapping
... Shariff ARM, Nuruddin AA 2004 GIS-grid-based and multi-criteria analysis for identifying and mapping peat swamp forest fire hazard in Pahang, Malaysia Disaster Prev Manage 13(5):379À386 Jaafari ... at 00:53 15 March 2016 Geomatics, Natural Hazards and Risk 883 Nandi A, Shakoor A 2010 A GIS-based landslide susceptibility evaluation using bivariate and multivariate statistical analyses Eng ... control management in Chilla forest range of Rajaji National Park Uttaranchal (India) [thesis] Enschede: International Institute for Geo-information Science and Earth Observation Razali SBM 2007 Forest...
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fuzzy logic a practical approach - f. martin mcneill, ellen thro
... losing a second or jarring a passenger Japanese consumer product giants such as Matsushita and Nissan have also climbed aboard the fuzzy bandwagon Matsushita’s fuzzy vacuum cleaner and washing machine ... observation as inputs or as the basis for rules Systems that are naturally vague, such as those in the behavioral and social sciences Advantages and Disadvantages According to Datapro, the Japanese ... their nature may always have uncertain aspects or involve balancing tradeoffs Figure 1.10: An estimator may agree partially Fuzzy Logic A Practical Approach by F Martin McNeill and Ellen Thro Chapter...
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báo cáo hóa học: " A biologically inspired neural network controller for ballistic arm movements" ppt
... that ballistic movements can be managed by feed-forward controllers without using visual information as feedback Some common characteristics are generally shared by ballistic movements on a plane, ... variance rule, able to attain physiological kinematic results as Fitt's Law and 2/3 Power Law [16] Some authors [17,18] tried to provide a mathematical explanation of these kinematic invariants suggesting ... movement starts After a time interval, defined by the ANN, the antagonist is activated, so that the time interval TcoactShoulder is characterized by the co-activations of the agonist and antagonist...
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Báo cáo hóa học: " Research Article Power-Constrained Fuzzy Logic Control of Video Streaming over a Wireless Interconnect" ppt
... fullness as a sign of the available capacity in the network and increase the number of retransmissions Because our purpose was to make a fair comparison and because the absence of a DAB unfairly ... illustrated in Figure 8, again with channel parameter set to two 4.2 Response of FCL, default ARQ, and adaptive ARQ A comparison was made between the default scheme with infinite ARQ, the adaptive ARQ ... display and, for anchor picture packets, decode deadlines), and send buffer congestion Because an ARQ management system is not also able to manage the send buffer size, a deadline aware buffer (DAB)...
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Báo cáo hóa học: " Research Article A Fuzzy Color-Based Approach for Understanding Animated Movies Content in the Indexing Task" doc
... (CITIA), which is the organization managing the festival, to compose a numerical animation movie database, soon to be available online for general use (see Animaquid at http://www.annecy.org) Managing ... 0 NDA NDA There is a saturation contrast 0 NDA NDA Warm colors are predominant 1 NDA Cold colors are predominant 0 NDA 0.9 There is a warm-cold contrast 0 NDA Adjacent colors are predominant ... local imagebased analysis Such a system which takes the temporal color information into account is proposed in [16] The art images and commercials are analyzed at emotional and expressional levels...
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POSITIVE PERIODIC SOLUTIONS FOR NONLINEAR DIFFERENCE EQUATIONS VIA A CONTINUATION THEOREM GEN-QIANG pptx
... Fredholm mapping of index zero Next we recall that a subset S of a Banach space X is relatively compact if, and only if, for each ε > 0, it has a finite ε-net Lemma 2.3 A subset S of Xω is relatively ... specifically, let X and Y be two Banach spaces and L : DomL ⊂ X → Y is a linear mapping and N : X → Y a continuous mapping [7, pages 39–40] The mapping L will be called a Fredholm mapping of index ... including Cooke and Wiener [5, 6], Shah and Wiener [9], Aftabizadeh et al [1], Busenberg and Cooke [2], and so forth Studies of such equations were motivated by the fact that they represent a hybrid...
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Báo cáo toán học: "Sharp threshold functions for random intersection graphs via a coupling method" potx
... respectively For any random variables G1 and G2 with values in a countable set A, by the total variation distance we mean dT V (G1 , G2 ) = max | Pr {G1 ∈ A } − Pr {G2 ∈ A } | ′ A A = a A | Pr {G1 = a} ... intermediate auxiliary graphs The comparison is made by a sequence of couplings and measuring the distance between distributions of auxiliary graph valued random variables First we introduce necessary ... using intermediate auxiliary random graphs From them we can deduce the assertion of the theorem First recall (see for example [8]) that if for some graph valued random variables G1 and G2 dT V (G1...
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Development of a new elastic path controller for the collaborative wheelchair assistant
... sensor-based navigation and automatic obstacle avoidance system was developed in [45] It can navigate for the wheelchairs and automatically avoid obstacles by using sensory information This controller ... dynamic obstacles because of the lack of local sensory information NATIONAL UNIVERSITY OF SINGAPORE SINGAPORE 2.1 Path planning approaches 11 2.1.2 Reactive approach The reactive planning approach ... attracted more and more interests of research and application Apart from providing mobility aid and saving effort for users, robotic wheelchairs are also compact and can have more complex and...
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A low power design for arithmetic and logic unit
... popular and widely-used over the past few years One reason for the widespread adoption is their usability such as a transformation to a graphical interface The ability for such a transformation has ... segment for Case 76 Table 4.3 Program segment for Case 76 Table 4.4 GIn segment for Case 77 Table 4.5 Program segment for Case 77 Table 4.6 GIn segment for Case 78 Table 4.7 Program segment for Case ... circuits can be accurately simulated with various delay models and equations The output signal delay of CMOS circuits may be expressed as a function of the intrinsic delay, parasitic capacitance and...
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Evolution of artificial neural network controller for a boost converter
... mixed analog and digital implementation to take advantage of both The design of the Artificial Neural Network (ANN) plays a very crucial role in the information processing capability [8] and hence, ... reached And a strategy of evolving added nodes and a partial training algorithm are used to maintain a close behavioral link between the parents and their offspring Such algorithms for ANN controller ... optimization and search problems Genetic algorithms are categorized under global search heuristics They are a particular class of evolutionary 15 algorithms (EA) (also known as evolutionary computation)...
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Fast response controller for a stepping inductance based voltage regulator module
... Kanakasabai Viswanathan, Xu Xinyu, Deng Heng, Kong Xin, Yin Bo, Yang Yuming, Krishna Mainali, Wu Xinhui, Wang Wei, Chen Yu, Ravinder Pal Singh, Marecar Hadja, Vasanth Subramanyam, Wei Guannan, ... capacitors are paralleled as output filter In this case, the equivalent output capacitor has a very low ESR and the output voltage ripple has a parabolic waveform instead of a linear ramp Providing a ... topologies and on control methods Chapter analyzes the transient response and steady-state operation of a VRM The analysis illustrates the tradeoff between transient performance and steady state performance...
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