Smart Navigation with Static Polygons and Dynamic Robots

2021 ◽  
Vol 17 (1) ◽  
pp. 1-9
Author(s):  
Israa Al-Furati ◽  
Osama Rashid
Keyword(s):  
Electronic Circuit ◽  
Basic Program ◽  
Wireless Transmission ◽  
Great Success ◽  
Rfid Tag ◽  
Current Location ◽  
On Line ◽  
A Site ◽  
Unique Program ◽  
Robot Path

Due to the last increase in data and information technology, the need to use robots in many life areas is increased. There is a great diversity in this field, depending on the type of task required, as the robot enters the parcels of air, land, and water. In this paper, a robot's mission designed to move things is concentrated, relying on line-tracing technology that makes it easy to track its path safely, the RFID is distributed in its approach. When the robot reads the RFID tag, it stops until it raises the load from above, the robot continues its path toward the target. When an obstacle obstructs the robot path, the robot deviates and returns after a while to its previous approach. All this technology is implemented using a new algorithm which is programmed using the visual basic program. The robot designed to transfer the stored material is used according to a site known as an identifier that is identified by the RFID value, where the robot is programmed through a microcontroller and a unique store program that determines the current location and the desired location, then is given the task for the robot to do it as required. The robot is controlled using an ATmega controller to control other parts connected to the electronic circuit, the particular infrared sensor, and ultrasound to avoid potential obstacles within the robot's path to reach the target safely. In addition to this, the robot is made up of an RFID sensor to give unique to each desired target site. Through the console, it is possible to know the link indicated by the target. The H-bridge is also used to obtain a particular command and guide the robot as needed to move freely in all directions and a DC motor which is unique for moving wheels at the desired speed, and Bluetooth for programmable and secure wireless transmission and reception with all these parts through a unique program that also uses application inventory. The robot has proven to be a great success in performing the required task through several tests that have been practically performed.

A Novel Method for Automated Tool Path Optimisation for CNC Machining Operations

2010 ◽  
Vol 166-167 ◽  
pp. 357-362
Author(s):  
Shahed Shojaeipour
Keyword(s):  
Tool Path ◽  
Target Location ◽  
Imaging System ◽  
Optimal Path ◽  
Digital Camera ◽  
Basic Program ◽  
Cnc Machining ◽  
Cnc Machine ◽  
Current Location ◽  
Tool Diameter

In this article, a new method for rapid tool movement in CNC machines is presented. Firstly, a single digital camera, installed on the Z-axis, captures the image of the workpiece on the work table. Image processing techniques, implemented using MATLAB, are then used to convert the image into a binary black and white image. This allows the locations of protruding edge sections on the workpiece, which could impede tool movement, to be identified. Quadtree decomposition is then performed on the binary image, and possible paths from the tool current location to its target location are found. These paths are then analysed based on the tool diameter clearance and the distance to the goal, and the shortest path with sufficient tool clearance is selected. A Visual Basic program then converts the selected path into G-code commands that provides instructions to the CNC machine tool such that this path is followed. With this method, the workpiece fixture location would not have to be precise as the imaging system would be able to automatically identify the target location with respect to the tool current location, along with the optimal path to reach it.

Path Planning in a Mobile Robot

2019 ◽  
pp. 582-608
Author(s):  
Diego Alexander Tibaduiza Burgos ◽  
Maribel Anaya Vejar
Keyword(s):  
Genetic Algorithms ◽  
Path Planning ◽  
Mobile Robot ◽  
Fitness Function ◽  
Experimental Setup ◽  
Robot Path Planning ◽  
Natural Evolution ◽  
On Line ◽  
Planning Problems ◽  
Robot Path

This chapter presents the development and implementation of three approaches that contribute to solving the mobile robot path planning problems in dynamic and static environments. The algorithms include some items regarding the implementation of on-line and off-line situations in an environment with static and mobile obstacles. A first technique involves the use of genetic algorithms where a fitness function and the emulation of the natural evolution are used to find a free-collision path. The second and third techniques consider the use of potential fields for path planning using two different ways. Brief descriptions of the techniques and experimental setup used to test the algorithms are also included. Finally, the results applying the algorithms using different obstacle configurations are presented and discussed.

scholarly journals Comments on “Estimation of Tropical Cyclone Wind Hazard for Darwin: Comparison with Two Other Locations and the Australian Wind-Loading Code”

2012 ◽  
Vol 51 (1) ◽  
pp. 161-171 ◽  
Author(s):  
Bruce A. Harper ◽  
John D. Holmes ◽  
Jeffrey D. Kepert ◽  
Luciano B. Mason ◽  
Peter J. Vickery
Keyword(s):  
Tropical Cyclone ◽  
Wind Loading ◽  
Analysis Method ◽  
Climatological Data ◽  
Current Location ◽  
Wind Hazard ◽  
Wind Actions ◽  
Current Region ◽  
A Site ◽  
The City

AbstractCook and Nicholls recently argued in this journal that the city of Darwin (Northern Territory), Australia, should be located in wind region D rather than in the current region C in the Australian/New Zealand Standard AS/NZS 1170.2 wind actions standard, in which region D has significantly higher risk. These comments critically examine the methods used by Cook and Nicholls and find serious flaws in them, sufficient to invalidate their conclusions. Specific flaws include 1) invalid assumptions in their analysis method, including that cyclones are assumed to be at the maximum intensity along their entire path across the sampling circle even after they have crossed extensive land areas; 2) a lack of verification that the simulated cyclone tracks are consistent with the known climatological data and in particular that the annual rate of simulated cyclones at each station greatly exceeds the numbers recorded for the entire Australian region; and 3) the apparent omission of key cyclones when comparing the risk at Darwin with two other locations. It is shown here that the number of cyclones that have affected Port Hedland (Western Australia), a site in Australia’s region D, greatly exceeds the number that have influenced Darwin over the same period for any chosen threshold of intensity. Analysis of the recorded gusts from anemometers at Port Hedland and Darwin that is presented here further supports this result. On the basis of this evidence, the authors conclude that Darwin’s tropical cyclone wind risk is adequately described by its current location in region C.

Obstacle-avoiding intelligent algorithm for quad wheel robot path navigation

2020 ◽  
Vol 9 (1) ◽  
pp. 29-41
Author(s):  
Subhradip Mukherjee ◽  
R. Kumar ◽  
Siddhanta Borah
Keyword(s):  
Hardware Implementation ◽  
Intelligent Algorithm ◽  
Content Type ◽  
Arm Processor ◽  
Obstacle Avoiding ◽  
Current Location ◽  
Path Distance ◽  
Path Navigation ◽  
Robot Position ◽  
Robot Path

PurposeThe purpose of this work is to propose quad wheel robot with path navigation using an intelligent novel algorithm named as obstacle-avoiding intelligent algorithm (OAIA).Design/methodology/approachThe paper proposes OAIA algorithm, which is used to minimize the path distance and elapsed time between source and goal.FindingsThe hardware implementation of the Quad Wheel Robot design includes a global positioning system (GPS) module for path navigation. An ultrasonic module (HC SR04) is mainly used as the sensing unit for the system. In the proposed scheme, the GPS locator (L80) is used to obtain the current location of the robot, and the ultrasonic sensor is utilized to avoid the obstacles. An ARM processor serves as the heart of the Quad Wheel Robot.Practical implicationsThis paper includes real-time implementation of quad wheel robot for various coordinate values, and the movement of the robot is captured and analysed.Originality/valueThe proposed OAIA is capable of estimating the mobile robot position exactly under ideal circumstances. Simulation and hardware implementation are carried out to evaluate the performance of the proposed system.

Path Planning in a Mobile Robot

2013 ◽  
pp. 123-147
Author(s):  
Diego Alexander Tibaduiza Burgos ◽  
Maribel Anaya Vejar
Keyword(s):  
Genetic Algorithms ◽  
Path Planning ◽  
Mobile Robot ◽  
Fitness Function ◽  
Experimental Setup ◽  
Robot Path Planning ◽  
Natural Evolution ◽  
On Line ◽  
Planning Problems ◽  
Robot Path

This chapter presents the development and implementation of three approaches that contribute to solving the mobile robot path planning problems in dynamic and static environments. The algorithms include some items regarding the implementation of on-line and off-line situations in an environment with static and mobile obstacles. A first technique involves the use of genetic algorithms where a fitness function and the emulation of the natural evolution are used to find a free-collision path. The second and third techniques consider the use of potential fields for path planning using two different ways. Brief descriptions of the techniques and experimental setup used to test the algorithms are also included. Finally, the results applying the algorithms using different obstacle configurations are presented and discussed.

scholarly journals Ilyushin Il-2 in Archival and Architectural Manifestation of Historical Memory of the Great Patriotic War of 1941–45

2021 ◽  
pp. 1245-1256
Author(s):  
Anna V. Andreeva ◽  
◽  
Ludmila M. Artamonova ◽  
Keyword(s):  
Large Scale ◽  
Historical Memory ◽  
State Archive ◽  
Russian State ◽  
Great Patriotic War ◽  
Archival Documents ◽  
History Of ◽  
On Line ◽  
Cultural Code ◽  
A Site

The article examines and compares archival documents from the Russian State Archive in Samara (RGA v g. Samara) and Monument to the Ilyushin Il-2 as components of the “site of commemoration,” which has become a part of historical and cultural code of the city. The example of perception of this national and local symbol of the war reveals features of and prospects for constructing historical memory; detailed written evidences, vivid visual images, large-scale architectural and urban planning solutions are used. The theoretical basis for the research is Maurice Halbwachs’ concept of “historical memory” and Pierre Nora’s “lieux de m?moire.” Russian and foreign scientists are developing these concepts within the frameworks of interdisciplinary “memory studies.” The important role in these studies belongs to historians. Victory in the Great Patriotic War of 1941–45 became a backbone idea for our country. It gives meaning to the historical process in the 20th century, manifesting in numerous and various empirical data, events, and artifacts. The Ilyushin Il-2 became a significant “site of memory” in Samara for two reasons. Firstly, many documents on its creation are stored in the Russian State Archive in Samara and are available to researchers and constantly exhibited (on-line as well as real). Secondly, the Ilyushin Il-2 visually symbolizes Samara’s contribution to the Great Victory, as the aircraft, manufactured and restored here, became a center of the composition of the monument to military and labour glory of the citizens in the days of the Great Patriotic War. This monument was opened in 1973. Its last reconstruction was carried out in 2015–17 in order to preserve this unique historical relic. The aircraft-monument and written evidence on the history of its creation, destinies of inventors, production organizers, engineers, workers are situated not far from one other. The Constructor Ilyushin Square and the Memory Square, where the monument and the archive building stand, are connected by Moscow Avenue. It is not just a transport artery, but a pivot of historical memory uniting its documentary, material, and artistic incarnations into general cultural space, in which the Il-2 plays its important role as a "site of memory."

Variation Analysis Toolbox for Non-Nominal Path Planning for Industrial Robots

2007 ◽  
Author(s):  
Lars Lindkvist ◽  
Rikard So¨derberg ◽  
Johan S. Carlson
Keyword(s):  
Path Planning ◽  
Process Design ◽  
Manufacturing Process ◽  
Industrial Robots ◽  
Test Cases ◽  
Variation Analysis ◽  
On Line ◽  
Geometrical Variation ◽  
Assembly Analysis ◽  
Robot Path

Industrial robots are frequently used in the manufacturing process. One important aspect in the manufacturing process design is to assure that there exists a collision-free assembly path for each part and subassembly including the assembly equipment, e.g. a robot. In order to reduce the need of physical verification the automotive industry uses digital mock-up tools with collision checking for this kind of geometrical assembly analysis. However, in real production, all equipment, parts and subassemblies are affected by geometrical variation, often resulting in conflicts and on-line adjustments of off-line generated assembly paths. This paper presents a variation analysis toolbox for path planning for industrial robots. This toolbox can help to avoid problems with on-line adjustments. The variation analysis includes the variation in joints and actuators in the robot and can also be used by robot manufacturers when designing new robots. A new tool for variation analysis of a robot path is presented. Also, variation analysis of the product at the assembly line is used to enhance the off-line generated assembly paths. With better knowledge of the variation in the robot and product we can allow the assembly path to reach closer to areas of low variation, while avoiding areas of high variation. The proposed approach is illustrated with test cases.

Assertion based on-line fault detection applied on UHF RFID tag

2013 ◽  
Author(s):  
Ibrahim Mezzah ◽  
Omar Kermia ◽  
Hamimi Chemali ◽  
Omar Abdelmalek ◽  
Vincent Beroulle ◽  
...  
Keyword(s):  
Fault Detection ◽  
Uhf Rfid ◽  
Rfid Tag ◽  
On Line
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