The approach to development methods which are described in paper allows possibility extension for minimizing costs and widely external hardware industrial control systems utilization. There is described development me...
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ISBN:
(纸本)9781424460793;9780769539829
The approach to development methods which are described in paper allows possibility extension for minimizing costs and widely external hardware industrial control systems utilization. There is described development method of control applications by industrial WinPLC/WinPAC and REX control compiler in comparison to classical development methods that need expensive RT measurement cards and produce only one purpose development solution. The project is based on specification of development process of designed control schemas of prepared applications to an industrial utilization by direct connection and implementation to the chosen control system WinPLC/WinPAC. Paper deals with a way how to produce a solution for control applications that are prepared, designed and implemented in MATLAB-Simulink to the target platform. The multiplatform control system REX is used as a bridge between MATLAB and target platform.
The paper presents modern advanced development methods of control systems that minimizes the cost of development of applications which are widely applicable in industrial control of whole range of processes.
ISBN:
(纸本)9781424473359
The paper presents modern advanced development methods of control systems that minimizes the cost of development of applications which are widely applicable in industrial control of whole range of processes.
This paper studies the Discrete-Time Switched LQR problem over an infinite time horizon subject to polyhedral constraints on state and control input. The overall constrained, infinite-horizon problem is split into two...
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ISBN:
(纸本)9781424477456
This paper studies the Discrete-Time Switched LQR problem over an infinite time horizon subject to polyhedral constraints on state and control input. The overall constrained, infinite-horizon problem is split into two subprob-lems: (i) an unconstrained, infinite-horizon problem and (ii) a constrained, finite-horizon one. We derive a stationary suboptimal policy for problem (i) with analytical bounds on its optimality, and develop a formulation of problem (ii) as a Mixed-Integer Quadratic Program. By introducing the concept of a safe set, the solutions of the two subproblems are combined to achieve the overall control objective. It is shown that, by proper choice of the design parameters, the error of the overall sub-optimal solution can be made arbitrarily small. The approach is tested through a numerical example.
In this paper we study a distributed coordinated tracking problem for networked Euler-Lagrange systems. The objective is for a team of followers modeled by Euler-Lagrange equations to track a leader under the constrai...
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ISBN:
(纸本)9781424477456
In this paper we study a distributed coordinated tracking problem for networked Euler-Lagrange systems. The objective is for a team of followers modeled by Euler-Lagrange equations to track a leader under the constraints that the leader is a neighbor of only a subset of the followers and the followers have only local interaction. We consider two cases: i) The leader has a constant vector of generalized coordinate derivatives, and ii) The leader has a varying vector of generalized coordinate derivatives. In the first case, we propose a distributed continuous estimator and an adaptive control law to account for parametric uncertainties. In the second case, we propose a model-independent sliding mode control algorithm.
This paper proposes a new 4-Degree-of-Freedom (DOF) master-slave system for 3 dimensional needle steering. Both master and slave devices are commonly composed of a 3 DOF spherical type parallel mechanism and a 1 DOF n...
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This paper proposes a new 4-Degree-of-Freedom (DOF) master-slave system for 3 dimensional needle steering. Both master and slave devices are commonly composed of a 3 DOF spherical type parallel mechanism and a 1 DOF needle insertion mechanism. This system provides users with 3 dimensional needle steering and force reflection capabilities. The real time forward solution of the master device is addressed. The design of the master-slave system is described in detail. Finally, the effectiveness of this system for 3 dimensional needle steering task is verified through experimental work.
In this paper, sensors, which are directly installed on the surface of the mill, are used to collect mill's signals by wireless. The frame of the system is introduced and the hardware and software is designed in d...
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In this paper, sensors, which are directly installed on the surface of the mill, are used to collect mill's signals by wireless. The frame of the system is introduced and the hardware and software is designed in details in this paper. With the transmission mode of I 2 S and MCU of AT89S2051, the transform from analog signals to digital signals , data's transmission by wireless is achieved by this system. On this basis, the program designed is not only good at collect mill's signals, but also restraining the interference, analyzing spectrum. So the program can effectively achieve the mill state detection.
Many brain events and disorders can be detected by analyzing electroencephalograms (EEGs). Also the availability of quantitative biological markers that are correlated with qualitative psychiatric phenotypes helps us ...
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Many brain events and disorders can be detected by analyzing electroencephalograms (EEGs). Also the availability of quantitative biological markers that are correlated with qualitative psychiatric phenotypes helps us to utilize automated methods to diagnose and classify these phenotypes. One such a psychiatric phenotype is alcoholism. In this study a method to select an optimal subset of EEG channels for the purpose of practical classification of alcohol abusers from normal subjects is proposed, which is based on combination of model-based spectral analysis and correlation matrices. The EEG signals were recorded when the subjects were represented with single trial visual stimuli. The proposed method proved successful in selecting an optimum number of channels which achieved acceptable average classification accuracy.
This paper extends the method of virtual constraints and hybrid zero dynamics, developed for rigid robots with a single degree of underactuation, to MABEL, a planar biped with a novel compliant transmission. A time-in...
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This paper extends the method of virtual constraints and hybrid zero dynamics, developed for rigid robots with a single degree of underactuation, to MABEL, a planar biped with a novel compliant transmission. A time-invariant feedback controller is designed for realizing exponentially stable waking gaits in such a way that the closed-loop system preserves the natural compliance of the system, and therefore the energetic benefits of springs. This is accomplished by incorporating the compliance into the hybrid zero dynamics. The compliant-hybrid-zero-dynamics-based controller is implemented experimentally and shown to realize stable walking gaits which make use of the compliance to store and return energy to the gait.
A non-linear iterative learning control approach is developed for application to stroke rehabilitation. The subject is seated in a robotic workstation and electrical stimulation is applied to their triceps muscle to a...
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ISBN:
(纸本)9781424474264
A non-linear iterative learning control approach is developed for application to stroke rehabilitation. The subject is seated in a robotic workstation and electrical stimulation is applied to their triceps muscle to assist the tracking of trajectories in a horizontal plane. In addition to rotation about vertical axes through the shoulder and elbow joints, the forearm is also permitted to elevate in order to provide full arm extension. A dynamic model of the human arm is first developed, and then constraints are introduced to overcome kinematic redundancy. The expressions necessary to implement the control law are derived, and experimental results confirm its ability to achieve a high level of performance in practice.
In this paper, we present an overall study focused on the modeling, identification and control of the Pierburg mechatronic actuator. This actuator is used in the BMW M57 diesel engine to control all the air which are ...
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In this paper, we present an overall study focused on the modeling, identification and control of the Pierburg mechatronic actuator. This actuator is used in the BMW M57 diesel engine to control all the air which are charged and entered in the vehicle engine. The obtained model from the identification procedure is sufficiently closer to the practical actuator behavior and captures most of its characteristics. This mechatronic actuator is subject of parameter variation during its life span. A nonlinear control based on the Interconnection and Damping Assignment Passivity-Base control (IDA-PBC) is designed in order to ensure the desired performances. Simulation results show the efficiency of both the obtained model and the control strategy.
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