Title :
An autonomous decentralized scheduling algorithm for a job shop process with a multi-function machine in parallel
Author :
Iima, Hitoshi ; Kudo, Ryoichi ; Sannomiya, Nobuo ; Kobayashi, Yasunori
Author_Institution :
Kyoto Inst. of Technol., Japan
Abstract :
Deals with a job shop scheduling problem with a multi-function machine. In this problem, the multi-function machine can process all operations, and each operation is processed by either a single-function machine or the multi-function machine. This problem has two objective functions. One is to minimize the sum of the tardiness of each job, and the other is to maximize the working time of the multi-function machine because of the operating cost of the machines. An autonomous decentralized scheduling algorithm is proposed to obtain a compromise solution of this problem. In this algorithm, a number of decision makers are called subsystems, which cooperate with one another in order to attain the goal of the overall system. In our algorithm, all jobs and the multi-function machine are defined as subsystems because their objective functions are competitive. They determine the scheduling plan on the basis of their cooperation and their own objective functions. The effectiveness of the algorithm is investigated by examining numerical results
Keywords :
competitive algorithms; decentralised control; optimal control; parallel algorithms; production control; scheduling; autonomous decentralized scheduling algorithm; competitive objective functions; cooperating subsystems; decision makers; job shop scheduling; job tardiness minimization; multi-function machine; operating cost; parallel algorithm; scheduling plan; single-function machine; working time maximization; Assembly; Control systems; Costs; Information analysis; Job shop scheduling; Large-scale systems; Optimal scheduling; Reliability; Scheduling algorithm;
Conference_Titel :
Autonomous Decentralized Systems, 1997. Proceedings. ISADS 97., Third International Symposium on
Conference_Location :
Berlin
Print_ISBN :
0-8186-7783-X
DOI :
10.1109/ISADS.1997.590605