Title :
Towards learning pallets applied in pull control job-open shop problem
Author :
Mehrsai, Afshin ; Scholz-Reiter, Bernd
Author_Institution :
Dept. of Planning & Control of Production Syst., Bremen Univ., Bremen, Germany
Abstract :
The current paper studies the concept of learning pallets following the autonomy paradigm; in a Conwip control job-shop/ open-shop system. To realize learning capability for pallets several advantages and methodologies can be employed. Among them are the privileges of closed-loops in Conwip system as well as application of evolutionary intelligence for inspiring learning. Specifically, some features of genetic algorithm (GA) can be used to produce new alternatives and avoid local traps in a decentralized approach, though the GA is a global search method. In addition, fuzzy inference system is employed to distinguish the dynamisms of each station as well as of the entire system, concerning vagueness in real time information, and uncertainty in processing sequence and times. It is shown here that learning pallets (Lpallets) are presenting better records in terms of some criteria, e.g., makespan.
Keywords :
closed loop systems; fuzzy reasoning; genetic algorithms; job shop scheduling; learning (artificial intelligence); palletising; search problems; Conwip control job-shop system; Conwip control open-shop system; closed-loop system; evolutionary intelligence; fuzzy inference system; genetic algorithm; global search method; learning pallets; pull control job-open shop problem; Assembly systems; Control systems; Genetic algorithms; Genetics; Job shop scheduling; Logistics; Mathematical model; Learning pallets; decentralized control; job-open shop scheduling; pull assembly system;
Conference_Titel :
Assembly and Manufacturing (ISAM), 2011 IEEE International Symposium on
Conference_Location :
Tampere
Print_ISBN :
978-1-61284-342-1
Electronic_ISBN :
Pending
DOI :
10.1109/ISAM.2011.5942354