A multi-branch parallel simulation method and an architecture of application system are proposed in this paper based on symbiotic potential, and method of construction and calibration of parallel battlefield based on ...
详细信息
A multi-branch parallel simulation method and an architecture of application system are proposed in this paper based on symbiotic potential, and method of construction and calibration of parallel battlefield based on real data, as well as generation of simulation branch based on situation interpretation etc. are proposed. Fast building and adjustment of situation of real time simulation are realized based on simulation to meet the requirements of consistency and parallel operation between virtual simulation and real systems. Multibranch operation management, multi-branch highperformance operation support and other methods are proposed to support the dynamic generation of massive parallel simulation copies based on real-time intelligence and ultra-realtime and large-sample operation to meet the requirements of advanced evaluation of real-time situation. At the same time, a set of simulation application verification frameworks for typical task situation is presented to support the construction of multibranch simulation operation environment, and provide technical verification means for real-time situation prediction and evaluation.
Hyper-redundant robots of backbone types are generally driven by traction cables, making different curves for different segments in their body. This paper presents the structure of a hyper-redundant robot of backbone ...
详细信息
ISBN:
(纸本)9781538644447
Hyper-redundant robots of backbone types are generally driven by traction cables, making different curves for different segments in their body. This paper presents the structure of a hyper-redundant robot of backbone type having an electrorheologhic system for position control. For proper operation, so for bending, we uses a cables system with DC motor-driven. The control system is made with a PIC microcontroller. modeling the robot's position is done by bending it with cables, combined with locking the desired elements position through the electrorheological system. The major advantage of this type of drive lies in the fact that the robot modeling can be done with a system with only three cables, the position lock system of an element or segment is relatively simple. Also presented is a variable width signal system with constant amplitude where the duration of the input signal is the control variable. The control system uses a mixed control. We use this controller for control of robot curvature respectively the control of ER valve.
A two-cell power chopper system will be studied in this paper. The topology of this chopper is based on a combination of two cell switching interconnected via a flying capacitor. The system is a particular hybrid dyna...
详细信息
ISBN:
(纸本)9781538676417
A two-cell power chopper system will be studied in this paper. The topology of this chopper is based on a combination of two cell switching interconnected via a flying capacitor. The system is a particular hybrid dynamical one which induces new and difficult controlproblems. In this paper, such problem is tackled by a new control concept based on Petri Nets modeling. The main advantage of this control is to use a discrete event algorithm for both current tracking and capacitor voltage balancing with the ability to drive directly the chopper switching components, by respecting the tolerance errors of load current and capacitor voltage. Simulation and experiment tests are carried out to verify the feasibility and effectiveness of the proposed control. The obtained results show that;the proposed controller presents good performances, in terms of both current tracking and voltage balancing compared to conventional existing controls according to the variation of the tolerance errors.
Predictive control methods for walking commonly use low dimensional models, such as a Linear Inverted Pendulum Model (LIPM), for simplifying the complex dynamics of legged robots. This paper identifies the physical li...
详细信息
ISBN:
(纸本)9781538680940
Predictive control methods for walking commonly use low dimensional models, such as a Linear Inverted Pendulum Model (LIPM), for simplifying the complex dynamics of legged robots. This paper identifies the physical limitations of the modeling methods that do not account for external disturbances, and then analyzes the issues of numerical stability of Model Predictive control (MPC) using different models with variable receding horizons. We propose a new modeling formulation that can be used for both gait planning and feedback control in an MPC scheme. The advantages are the improved numerical stability for long prediction horizons and the robustness against various disturbances. Benchmarks were rigorously studied to compare the proposed MPC scheme with the existing ones in terms of numerical stability and disturbance rejection. The effectiveness of the controller is demonstrated in both MATLAB and Gazebo simulations.
In the paper the mathematical model of the electrocardographic processes based on the analysis of three-dimensional electrical circuit is proposed. Parameters of passive elements of this circuit are determined by the ...
In the paper the mathematical model of the electrocardographic processes based on the analysis of three-dimensional electrical circuit is proposed. Parameters of passive elements of this circuit are determined by the geometrical dimensions and electrical characteristics of individual areas of the human body. Voltage source voltage in the circuit is equivalent to the electrical activity of the heart conductive system. The developed mathematical model of electrocardiographic processes takes into account the influence of such factors as the size of separate parts of the body, the location of the anatomical axis of the heart, pathology in the conductive system of the heart. It can be used to model tasks in the fields of vector-electrocardiography and tomography to study the electrical activity of the heart.
The paper deals with Coriolis vibratory gyroscopes assigned for operation in the high-precision stabilization and navigation systems of unmanned aerial vehicles. Such an approach is directed to the development of pers...
详细信息
ISBN:
(纸本)9781728125930
The paper deals with Coriolis vibratory gyroscopes assigned for operation in the high-precision stabilization and navigation systems of unmanned aerial vehicles. Such an approach is directed to the development of perspective multi-purpose airborne systems. The design of the Coriolis vibratory gyroscope with the metallic resonator and improved characteristics is described in detail. Expressions for calculation of basic performances of Coriolis vibratory gyroscopes are represented. Improving the proposed gyroscope is analyzed. Results of modeling of the new gyroscope elements are given. The obtained the results are directed to the development of perspective heavy unmanned aerial vehicles due to the high accuracy, high reliability, and also miniaturization. The most part of results can be useful for the design of rate sensors based on microelctromechanical technologies and other kinds of unmanned aerial vehicles.
Based on the establishment of the evaluation index system of security maintenance ability, combined with AHP, entropy-weighted method and fuzzy comprehensive evaluation method, a fuzzy comprehensive evaluation model i...
详细信息
ISBN:
(纸本)9781728136585
Based on the establishment of the evaluation index system of security maintenance ability, combined with AHP, entropy-weighted method and fuzzy comprehensive evaluation method, a fuzzy comprehensive evaluation model is constructed. Taking an unit as an example, the security maintenance ability evaluation value is obtained and the correctness of the model is verified. Through the evaluation result, the problems existing in the development process of the security maintenance ability are found.
Considering the fact that the optimization of operation process of CCHP microgrid is complex, characterized with uncertainties, nonlinearity, strong coupling and dynamics. This paper proposes a method for optimal oper...
详细信息
ISBN:
(数字)9781728145662
ISBN:
(纸本)9781728145679
Considering the fact that the optimization of operation process of CCHP microgrid is complex, characterized with uncertainties, nonlinearity, strong coupling and dynamics. This paper proposes a method for optimal operation of CCHP microgrid system based on ADHDP (action based heuristic dynamic programming) to solve this problem. ADHDP involves three neural networks, namely the Action Network, Critic Network and Model Network. The Critic network weights keep being updated inline with the control error and performance index function. In addition, the action network weights keep being updated inline with the control error. The ADHDP model is trained with real-time data of the system until an optimal control strategy of CCHP microgrid is obtained. In the end, the simulation results suggest that the proposed scheduling method has effectively reduced the total electricity cost and improved energy efficiency.
Web-based collaborative platforms and co-editing tools are now vital components of modern organizations seeking to enhance team productivity and efficiency. Although the underlying optimistic consistency maintenance t...
详细信息
ISBN:
(纸本)9781538611227
Web-based collaborative platforms and co-editing tools are now vital components of modern organizations seeking to enhance team productivity and efficiency. Although the underlying optimistic consistency maintenance techniques for keeping content synchronized across multiple sites have been studied by researchers since the eighties, no investigations currently exist that apply the principles of control theory and Finite State Machines (FSMs) to model the real-time distributed system behavior. Such modeling is important to enable the next generation of collaborative web-based experiences, which can increasingly benefit from real-time synchronization of complex hierarchical content such as HTML. So far no approaches can preserve the user's intentions when capturing any change made to the HTML Document Object Model (DOM) in a way efficient for sending and replaying on another browser. What is needed is a way of observing and encoding all possible changes made to a web page's DOM in such a way that they can be transmitted to other users as a feedback signal via a central server. This paper will apply a real-time feedback control mechanism to develop a Web-Based Collaborative Platform based on a new Operation Transformation (OT) algorithm. Operations are deduced by executing a series of rules and by using a Virtual DOM (VDOM) to ensure that operations can be re-integrated by receiving users, where transformation rules are applied. The feedback mechanisms are demonstrated by modeling and simulating the components using FSMs, which are optimally combined with the Rule-Based approach such that real-time deadlines are observed.
The article proposes a method for estimating the reliability of the control system of an unmanned aerial system (UAS) with the help of Bayesian networks of trust (BNT). A method for constructing a BNT based on the uni...
详细信息
暂无评论