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Statements

Subject Item
n2:RIV%2F68407700%3A21230%2F14%3A00217680%21RIV15-MSM-21230___
rdf:type
n3:Vysledek skos:Concept
dcterms:description
The energy consumption of robotic lines, which are extensively used in industry for welding, assembling and painting, can entail considerable expenditures for manufacturing processes resulting in more expensive products, therefore it is no wonder that industrial companies are getting more and more interested in finding energy efficient solutions. In our work we propose a completely novel mathematical formulation of the energy optimisation problem for robotic lines. In contrast to the existing works our solution considers different trajectories of robots, gravity and order of robot operations from the global point of view. Moreover, our mathematical formulation takes into account the robot's power save modes (e.g. using brakes or bus-power-off) to save even more energy. The optimal solution to the problem is the one which is both the most energy efficient and meeting the desired production cycle time. As our approach is high-level, the point-to-point robot's movements for different speeds and trajectories have to be simulated by an external tool and used as an input for our algorithm. Having had the line structure and data from simulations the problem can be solved using Integer Linear Programming. The large-scale ILP problem is tackled by using the Lagrangian relaxation method that decomposes it into smaller sub-problems corresponding to individual robots. The preliminary results on generated instances confirmed the correctness of the proposed model and revealed a high potential for reducing energy consumption of robotic lines. The energy consumption of robotic lines, which are extensively used in industry for welding, assembling and painting, can entail considerable expenditures for manufacturing processes resulting in more expensive products, therefore it is no wonder that industrial companies are getting more and more interested in finding energy efficient solutions. In our work we propose a completely novel mathematical formulation of the energy optimisation problem for robotic lines. In contrast to the existing works our solution considers different trajectories of robots, gravity and order of robot operations from the global point of view. Moreover, our mathematical formulation takes into account the robot's power save modes (e.g. using brakes or bus-power-off) to save even more energy. The optimal solution to the problem is the one which is both the most energy efficient and meeting the desired production cycle time. As our approach is high-level, the point-to-point robot's movements for different speeds and trajectories have to be simulated by an external tool and used as an input for our algorithm. Having had the line structure and data from simulations the problem can be solved using Integer Linear Programming. The large-scale ILP problem is tackled by using the Lagrangian relaxation method that decomposes it into smaller sub-problems corresponding to individual robots. The preliminary results on generated instances confirmed the correctness of the proposed model and revealed a high potential for reducing energy consumption of robotic lines.
dcterms:title
High-level Optimisation of Energy Consumption of the Robotic Line with Respect to Production Cycle Time using Integer Linear Programming and Lagrangian Relaxation High-level Optimisation of Energy Consumption of the Robotic Line with Respect to Production Cycle Time using Integer Linear Programming and Lagrangian Relaxation
skos:prefLabel
High-level Optimisation of Energy Consumption of the Robotic Line with Respect to Production Cycle Time using Integer Linear Programming and Lagrangian Relaxation High-level Optimisation of Energy Consumption of the Robotic Line with Respect to Production Cycle Time using Integer Linear Programming and Lagrangian Relaxation
skos:notation
RIV/68407700:21230/14:00217680!RIV15-MSM-21230___
n4:aktivita
n17:P
n4:aktivity
P(7H12008)
n4:dodaniDat
n12:2015
n4:domaciTvurceVysledku
n9:7678436 n9:7388160
n4:druhVysledku
n7:O
n4:duvernostUdaju
n11:S
n4:entitaPredkladatele
n8:predkladatel
n4:idSjednocenehoVysledku
19136
n4:idVysledku
RIV/68407700:21230/14:00217680
n4:jazykVysledku
n13:eng
n4:klicovaSlova
robotic lines; energy; Lagrangian relaxation; Integer Linear Programming
n4:klicoveSlovo
n10:robotic%20lines n10:Integer%20Linear%20Programming n10:energy n10:Lagrangian%20relaxation
n4:kontrolniKodProRIV
[E74D61D23D63]
n4:obor
n14:BB
n4:pocetDomacichTvurcuVysledku
2
n4:pocetTvurcuVysledku
2
n4:projekt
n16:7H12008
n4:rokUplatneniVysledku
n12:2014
n4:tvurceVysledku
Šůcha, Přemysl Bukata, Libor
n15:organizacniJednotka
21230