Semi-Automated Production Systems under Disturbances
作者:
FriedmanLea,
GolenkoDimitri,
SinuanyZilla,
期刊:
Journal of the Operational Research Society
(Taylor Available online 1993)
卷期:
Volume 44,
issue 2
页码: 161-168
ISSN:0160-5682
年代: 1993
DOI:10.1057/jors.1993.28
出版商: Taylor&Francis
关键词: Production Control Points;Chance Constraints;Stationary Stochastic Processes
数据来源: Taylor
摘要:
AbstractA production system operates at a speed which is a stationary stochastic process. Given the routine control point, the actual accumulated production observed at that point and the deterministic rate of demand, the decision-maker determines the timing of the next control point. The problem is applied to semiautomated production processes where the advancement of the process cannot be measured or viewed continuously, and the process has to be controlled in discrete points by the decision-maker. Since the cost of performing a single control is relatively high, the control should be carried out as rarely as possible but it also has to ensure a preset confidence probability of achieving production output no less than that required. Formulae for determining the next control point for an arbitrary distribution function of the stationary process with a certain autocorrelation function are presented. They depend on the status of the system (shortage or surplus), the relation between the rate of demand and the mean value of the speed, the variance of the speed, and on the confidence level 1-α. A practical numerical example from the mining industry will be given.
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