scholarly journals Parallelization of Finding the Current Coordinates of the Lidar Based on the Genetic Algorithm and OpenMP Technology

Symmetry ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 666
Author(s):  
Lesia Mochurad ◽  
Natalia Kryvinska

The problem of determining the position of the lidar with optimal accuracy is relevant in various fields of application. This is an important task of robotics that is widely used as a model when planning the route of vehicles, flight control systems, navigation systems, machine learning, and managing economic efficiency, a study of land degradation processes, planning and control of agricultural production stages, land inventory to evaluations of the consequences of various environmental impacts. The paper provides a detailed analysis of the proposed parallelization algorithm for solving the problem of determining the current position of the lidar. To optimize the computing process in order to accelerate and have the possibility of obtaining a real-time result, the OpenMP parallel computing technology is used. It is also possible to significantly reduce the computational complexity of the successive variant. A number of numerical experiments on the multi-core architecture of modern computers have been carried out. As a result, it was possible to accelerate the computing process about eight times and achieve an efficiency of 0.97. It is shown that a special difference in time of execution of a sequential and parallel algorithm manages to increase the number of measurements of lidar and iterations, which is relevant in simulating various problems of robotics. The obtained results can be substantially improved by selecting a computing system where the number of cores is more than eight. The main areas of application of the developed method are described, its shortcomings and prospects for further research are provided.

Aviation ◽  
2007 ◽  
Vol 11 (2) ◽  
pp. 23-30 ◽  
Author(s):  
Jan Gruszecki ◽  
Andrzej Tomczyk ◽  
Boguslaw Dołega ◽  
Tomasz Rogalski ◽  
Pawel Rzucidło

The development of informatics and sensor techniques has extended the possibilities of flight parameter measurement. It allows for extensive modification of control and navigation systems in air vehicles. This advance can also be noticed in the research of the Department of Avionics and Control at the Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology. Research in the area of digital flight control systems was initiated at the Department of Avionics and Control over twenty years ago.


2013 ◽  
Vol 198 ◽  
pp. 266-271 ◽  
Author(s):  
Paweł Rzucidło

This paper presents an experimental research simulator of an Unmanned Aerial Vehicle (UAV) and supporting systems, designed at the Department of Avionics and Control, Rzeszow University of Technology. The research simulator enables hardware-in-the-loop testing of an autopilot, actuators, the ground control station and telemetry modules. Particular hardware blocks can be integrated with real-time environment with the use of a CAN data bus, Ethernet interface and a set of popular serial interfaces. Current experiments support development and hardware-in-the-loop testing of advanced flight control and navigation systems of a small UAV (taking into account both the on-board and the ground segments).


Author(s):  
D.L. Roke

The growth in horticultural and some industrial development in selected areas of Northland has led to a need for more specific and careful planning and control of limited resources in a number of major catchments. The potential irrigation demands for horhculture comprise over 60% of Northland's potential water requirements. By contrast, farm water supply needs are only 11% of these needs. Because of their importance to the Northland economy, and in the legislation these needs are given a high priority in water resource management planning. Land uses, including pastoral farming, require careful operation to reduce diffuse sources of pollution.


Soviet Review ◽  
1973 ◽  
Vol 14 (2) ◽  
pp. 24-38 ◽  
Author(s):  
N. Fedorenko ◽  
K. Gofman

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