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Existing research on data collection using wireless mobile vehicle network emphasizes the reliable delivery of information. However, other performance requirements such as life cycle of nodes, stability and security are not set as primary design objectives. This makes data collection ability of vehicular nodes in real application environment inferior. By considering the features of nodes in wireless...
In this paper, a backstepping control design is presented for the longitudinal dynamics of a hypersonic flight vehicle. The GHV dynamics system is first decoupled into two subsystems, velocity subsystem and altitude subsystem. Then, the two subsystems are transformed into the strict-feedback forms, and on the basis of which the velocity controller and altitude controller are separately designed. Next,...
In this paper, we investigate the problem of optimal road side units (RSUs) placement in Vehicular Ad Hoc Network (VANET) on a highway, which enables the VANET maintain a good connectivity. Our goal is to find out minimal number of road side units, such that the vehicles could communicate with RSUs. These road side units are connected by wire. We develop a randomized algorithm to deploy road side...
In the vision-based traffic system for the moving vehicle detection, the accuracy of vehicle detection is heavily based on exact acquirement of the background, this paper presents a T-distribution background reconstruction algorithm of moving vehicle detection to obtain background pixels, that is, the background image which doesn't contain any moving objects is restored by integrating of several background...
To keep balance of global and local searching ability, and to overcome the slow convergence and prematurely of particle swarm optimization, a new algorithm that isolation niches embedded in particle swarm optimization (INPSO) is introduced. Solving the heavy traffic problem in existing condition is also worth considering. In this paper, the method of two-intersections traffic controlling is proposed...
Based on the located information and graph theory, a distributed sensor network model is introduced. The relationship between data transmission and fusion between nodes are described with Delaunay triangulation. And Voronoi diagrams have been used in the description of coverage region of nodes. With the model, disadvantages of existing located system based on a fixed infrastructure could be overcome.
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