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This article discusses the Lyapunov-Krasovskii functional method for the stability problem of coupled differential-functional equations with distributed delays and one discrete delay. However, systems with distributed delays and multiple commensurate discrete delays can be easily transformed to the standard form treated in this article. This standard form represents a very general class of time-delay...
This paper discusses the distributed connected coverage problem for a group of mobile agents in 3-dimensional space and with limited-range interactions. A self-deployment algorithm is proposed, which spreads out the agent group while preserving some special core structures of the time-variant communication topologies. It should be pointed out that the core structure keeps the connectivity of the communication...
In this work, we propose a framework for supervisory cooperative estimation of multi-agent nonlinear systems. We introduce a group of sub-observers, each estimating certain states conditioned on certain given input, output, and state information. The cooperation among the sub-observers is supervised by a discrete-event system (DES). The supervisor makes decisions on selecting and configuring a set...
This paper is concerned with consensus control of undirected networks of discrete time first order agents under quantized communication. A distributed protocol is proposed based on dynamic encoding and decoding with finite level uniform quantizers. It is shown that under the protocol designed, for a connected network, average-consensus can be achieved with an exponential convergence rate based on...
The presence of interactions has often made controlling large scale chemical plants expensive and difficult. This paper aims to address these issues by using a network approach where a large scale plant is modeled as a network of interconnected process units. This network is controlled by another network made up of interconnected local controllers. By utilizing the physical and energy properties of...
This paper proposes a distributed reconfigurable robot composed of magnetic driven modules to drive the robot by electromagnets only. An overview of the proposed module is presented in this paper which includes the design concept, an overview of the mechanical and electrical systems, magnetic force dissection, system modeling, and reconfiguration examples. The reconfigurable robot is realized with...
The limitation of network bandwidth leads to data dropout of communication which degrades performance of NCS. For motion control system implemented with NCS, the missing interpolation messages will cause motion error and it can be compensated by applying the message estimator. However, the distribution of the missing data will be more relevant to motion accuracy in NCS even with the same dropout rate...
Most existing flocking algorithms assume one single virtual leader and rely on information about both relative positions and relative velocities among neighboring agents. In this paper, we investigate the problem of controlling a flock of mobile autonomous agents to follow multiple virtual leaders using only position information in the sense that agents with the same virtual leader asymptotically...
The connection-coefficients control is a new control model, which is proposed for regulating connection coefficients of the state variables the subsystems of the interconnected systems. It is the direct regulations for the connections of system states and is different from the traditional feedback compensation. This paper is focused on the Connection-Coefficients Synergic Stabilization Problem of...
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