A Scheduling Algorithms of DNC Systems Based on CAN and Program Expending Rate

Abstract:

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In order to avoid communication conflicts in DNC systems, the scheduling tactics adopting a modified guaranteed EDF algorithm to DNC systems’ numerical control (NC) programs transmission was proposed. A condition was given to guarantee all NC machines in DNC systems work continuously. A mathematic model based on the actual expending rate of NC program was established to decide the priority of NC program transformation of all NC machines. A constraint condition for two machines with neighbored priority was proposed to avoid the conflict in the scheduling times. A dynamic scheduling scheme was presented for DNC systems. The validity of the presented method is verified by the practical tests.

Info:

Periodical:

Edited by:

Yi-Min Deng, Aibing Yu, Weihua Li and Di Zheng

Pages:

46-49

DOI:

10.4028/www.scientific.net/AMM.37-38.46

Citation:

H. L. Cai et al., "A Scheduling Algorithms of DNC Systems Based on CAN and Program Expending Rate", Applied Mechanics and Materials, Vols. 37-38, pp. 46-49, 2010

Online since:

November 2010

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Price:

$35.00

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