The paper presents nonlinear model predictive control designed using recurrent neural network. A recurrent neural network is trained to act as the one-step ahead predictor, which is then used succesively to obtain k-s...
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ISBN:
(纸本)9781479928552
The paper presents nonlinear model predictive control designed using recurrent neural network. A recurrent neural network is trained to act as the one-step ahead predictor, which is then used succesively to obtain k-step ahead prediction of the plant output. Based on the neural predictor, the control law is derived solving a constrained optimization problem. The stability of the considered predictive scheme is also investigated showing that a cost function is monotonically decreasing with respect to time. Derived stability conditions are used to redefine a constrained optimization in order to calculate a control, which guarantees the stable work of the controlsystem. The quality of the proposed stable predictive scheme is tested using a tank unit simulator realized in MATLAB/Simulink environment.
Information flow control is a key issue in the largescale systems,it needs to consider the collaboration between multi-components,execution efficiency,system security,and other aspects,the complexity of information fl...
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ISBN:
(纸本)9781467349994
Information flow control is a key issue in the largescale systems,it needs to consider the collaboration between multi-components,execution efficiency,system security,and other aspects,the complexity of information flow control is particularly prominent in the virtualization *** current information flow control in virtualization system mainly use direct communication and asynchronous communication mode,but they have disadvantage such as complexity of VMM designing,increasing the risk of system security,low efficiency of data *** this paper,we establish a synchronous communication mechanism based on the Collaborative-VMM,three key information flow control were designed in this VMM including I/O processing,interrupt processing,and user interface,it can eliminate the issue of processing delay between VMM and the I/O processing *** experimental results show that the synchronous communication mechanism can simplify the design of virtualization system and does not reduce the performance of the system at the same time,it is a viable information flow control scheme.
Decentralized control of networked systems has been widely investigated in the literature, with the aim of obtaining coordinated emerging behaviors (e. g. synchronization, swarming, coverage, formation control) by mea...
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ISBN:
(纸本)9781467363587
Decentralized control of networked systems has been widely investigated in the literature, with the aim of obtaining coordinated emerging behaviors (e. g. synchronization, swarming, coverage, formation control) by means of local interaction. In this paper we consider the possibility of injecting external inputs into the networked system, in order to obtain more complex cooperative behaviors. Specifically, we introduce a strategy that makes it possible to control the overall state of the networked system by directly controlling only a subset of the networked agents, namely the leaders. Exploiting local interaction rules, it is possible to define the inputs for the leaders in such a way that each follower is forced to track a desired periodic setpoint.
This work details a distributed controlsystem for triangular formation control where the control actions applied by the agents can be chosen from a set of values during run-time (as opposed to a single value defined ...
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ISBN:
(纸本)9781479915590
This work details a distributed controlsystem for triangular formation control where the control actions applied by the agents can be chosen from a set of values during run-time (as opposed to a single value defined in a standard feedback controller). Such a control law is advantageous as it allows the individual agents freedom in choosing their individual headings and motion speeds (from the specified set) during execution. This offers greater flexibility and robustness than traditional distributed feedback formation control laws. An alternative interpretation of the results presented is that the control law presented is capable of handling measurements that may be corrupted by an unknown finite state Markov chain (which can model noisy sensors and/or communication channels). A strong convergence result is established which permits global exponential convergence of the formation to the desired shape.
The problem of modeling and stabilization of a wireless networked controlsystem(NCS) with both packet dropout and time-varying delay is investigated in this paper, and the time-varying delay is more or less than one ...
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ISBN:
(纸本)9781467347082;9781467347075
The problem of modeling and stabilization of a wireless networked controlsystem(NCS) with both packet dropout and time-varying delay is investigated in this paper, and the time-varying delay is more or less than one sampling period. The closed-loop wireless NCS is modeled as an asynchronous dynamic system(ADS) with three subsystems. By using the ADS approach, a sufficient condition for the closed-loop wireless NCS to be stable is presented. An illustrative example is provided to demonstrate the effectiveness of the proposed result.
Programmable Logic controller (PLC) have been widely used in industries, and safety and reliability of them has been urgently concerned. However, it's hard to verify all the cases to discover the logical flaws of ...
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ISBN:
(纸本)9781479907816
Programmable Logic controller (PLC) have been widely used in industries, and safety and reliability of them has been urgently concerned. However, it's hard to verify all the cases to discover the logical flaws of complex systems by traditional testing. Formal verification methods introduce mathematical rigor in their analysis thereby guaranteeing exhaustive state space coverage. But there is not an effective and efficient tool for PLC verification, and the general-purpose formal tools need lots of relevant knowledge. This paper proposes an automatic verification tool for PLC systems. It includes graphical modeling, syntax check, code generation, code optimization and representation of the counter-examples which violate some system properties.
This paper proposes probability iterative closest point(ICP) method based on expectation maximization(EM)estimation for point set registration with *** classical ICP algorithm can deal with rigid registration between ...
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This paper proposes probability iterative closest point(ICP) method based on expectation maximization(EM)estimation for point set registration with *** classical ICP algorithm can deal with rigid registration between two point sets effectively,but always fails to register point sets with *** order to improve the registration precision,a Gaussian model is introduced into the rigid *** each iteration,the classical ICP algorithm includes two steps,building the corresponding relationship and computing the rigid *** to the traditional ICP,at each step,firstly the corresponding relationship is set ***,the rigid transformation is solved by singular value decomposition(SVD) method,and then the Gaussian model is updated by the distance and variance between two point *** experimental results on part B of CE-Shape-1 database and real position dataset validate that the proposed algorithm is more accurate.
A kind of high efficient frame forward mechanism in line topology real-time Ethernet is proposed in this paper. The control data and state data of the networked controlsystem are separated into downstream and upstrea...
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This paper deals with the problem of assisting developers when verifying properties of complex behaviour-based systems. A central aspect of behaviour-based systems is the interaction between the behaviours, as a lot o...
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ISBN:
(纸本)9781467356411;9781467356435
This paper deals with the problem of assisting developers when verifying properties of complex behaviour-based systems. A central aspect of behaviour-based systems is the interaction between the behaviours, as a lot of the functionality of a system typically arises from this interaction. Hence, verification has to deal with the specialities of behaviour interaction. Previous work has introduced a concept for modelling behaviour-based systems as networks of finite-state automata and for applying model checking as verification technique. As the manual verification of large networks is tedious and error-prone, the work at hand introduces a concept for assisting developers by partly automating the verification process. The applicability of the presented approach is demonstrated using the behaviour-based controlsystem of an autonomous bucket excavator.
Based on the IEC61850 standard,real-time reliable data transmission is an important content of the intelligent substation process bus *** of control,protection and current voltage signals in the intelligent substation...
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ISBN:
(纸本)9781467349970
Based on the IEC61850 standard,real-time reliable data transmission is an important content of the intelligent substation process bus *** of control,protection and current voltage signals in the intelligent substation are transferred in a *** network as information exchange hub of the intelligent substation,the performance of system network for control and protection system function has played a decisive *** is the foundation for safe reliable operation of the intelligent *** paper analyzes the network transmission characteristics of GOOSE,the requirements of network switch and tests the performance of system *** paper studies the transmission delay,storeand-forward delay,switch delay queuing *** to the network flow,this paper analyzes quantitatively network delay which effects on the performance of the intelligent substation,calculates the total delay,verifies the validity rationality of the GOOSE network trip method.
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