Article

Article title PLANNING OF THE PATH MOBILE OBJECT USING THE VORONOI DIAGRAM
Authors V.V. Soloviev, I.O. Shapovalov, V.V. Shadrina
Section SECTION I. AUTOMATION AND CONTROL
Month, Year 02, 2015 @en
Index UDC 620.9
DOI
Abstract The aim of the paper is to solve the problem of a vehicle motion planning in the environment with a priori uncertainty using a Voronoi diagram. For the problem solution, the analysis of some representative papers was carried out and confirmed that the vehicle motion planning in the environment with uncertain location of obstacles is a computationally expensive process. As a result, an algorithm for the environment mapping on the basis of data from the range finder mounted on the vehicle was proposed. This algorithm allows solution the problem of path planning in real time. The steps of the coordinate cauterization and linking with obstacles algorithm are presented. The modification of the coordinate cluster analysis using the intersection of polygons is proposed. A procedure of the sensor data analysis for the case of this data coincidence with the data in the coordinate database is considered. We also considered the following basic modes of the vehicle motion in the environment: the motion between the obstacles, the motion on the left and on the right of obstacles, the motion without obstacles. The approach to obstacle avoidance based on the adding of coordinates of extreme points belonging to the same object is shown. The motion between the obstacles along the edge of the Voronoi diagram corresponding to the case of incomplete road map is considered. Simulation of some basic modes was carried out for the cases when the obstacle location is next to a goal and the obstacles are uniformly located in the environment. The obtained results approve efficiency of the proposed algorithms for solving the problem of the safe vehicle motion in the environment with obstacles.

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Keywords Planning of a path; Voronoi diagram; mapping of the environment; independent mobile objects.
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