Division of Iterative-Transportation Based on Local Observation by Multiple Mobile Robots

2012 ◽  
Vol 16 (3) ◽  
pp. 462-468
Author(s):  
Yuichi Kobayashi ◽  
◽  
Yuta Sato ◽  
Manabu Gouko ◽  
◽  
...  
Keyword(s):  
Mobile Robots ◽  
Control Law ◽  
Total Efficiency ◽  
Global Information ◽  
Centralized Control ◽  
Multiple Robots ◽  
Multiple Mobile Robots ◽  
Local Observation ◽  
Excessive Number ◽  
Explicit Communication

This paper deals with a framework of decentralized approach to division of labor by multiple mobile robots. An iterative-transportation task by multiple robots with multiple sets of starts (pick-up place of the object) and goals (put down place) is considered as the task. On each route between a start and a goal, the efficiency of transportation improves when the number of robots increases. Due to jams, however, excessive number of robots on the same route causes inefficiency. We propose a control law of each robot to choose an appropriate route so as to optimize the total efficiency of the transportation, where each robot utilizes information which can be obtained only by local observation (without any explicit communication among robots). The proposed control is based on the estimation of the number of robots on the routes in the future. In simulation, it was verified that the proposed control law realized 96% efficiency of the fully centralized control by appropriately choosing the route, compared with the case where global information can be utilized.

scholarly journals A novel edge gradient algorithm for multiple mobile robots cooperative mapping in unknown environment

2019 ◽  
Vol 16 (4) ◽  
pp. 172988141986038
Author(s):  
Huang Yiqing ◽  
Wang Hui ◽  
Wei Lisheng ◽  
Gao Wengen ◽  
Ge Yuan
Keyword(s):  
Visual Field ◽  
Mobile Robots ◽  
Information Exchange ◽  
Field Of View ◽  
Gradient Algorithm ◽  
Movement Direction ◽  
Mapping Technique ◽  
Map Building ◽  
Multiple Mobile Robots ◽  
Motion Behavior

This article presented a cooperative mapping technique using a novel edge gradient algorithm for multiple mobile robots. The proposed edge gradient algorithm can be divided into four behaviors such as adjusting the movement direction, evaluating the safety of motion behavior, following behavior, and obstacle information exchange, which can effectively prevent multiple mobile robots falling into concave obstacle areas. Meanwhile, a visual field factor is constructed based on biological principles so that the mobile robots can have a larger field of view when moving away from obstacles. Also, the visual field factor will be narrowed due to the obstruction of the obstacle when approaching an obstacle and the obtained map-building data are more accurate. Finally, three sets of simulation and experimental results demonstrate the performance superiority of the presented algorithm.

Motion Planning for Cooperative Transportation of a Large Object by Multiple Mobile Robots.

2002 ◽  
Vol 68 (665) ◽  
pp. 165-172
Author(s):  
Atsushi YAMASHITA ◽  
Masaki FUKUCHI ◽  
Jun OTA ◽  
Tamio ARAI ◽  
Hajime ASAMA
Keyword(s):  
Motion Planning ◽  
Mobile Robots ◽  
Large Object ◽  
Multiple Mobile Robots ◽  
Cooperative Transportation

scholarly journals On the problem of multiple mobile robots cluttering a workspace

1992 ◽  
Vol 63 (1-2) ◽  
pp. 55-85 ◽  
Author(s):  
B.J. Oommen ◽  
I. Reichstein
Keyword(s):  
Mobile Robots ◽  
Multiple Mobile Robots
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