A Scheduling Algorithms of DNC Systems Based on CAN and Program Expending Rate
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 m...
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| Vydáno v: | Applied Mechanics and Materials Ročník 37-38; s. 46 - 49 |
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| Hlavní autoři: | , , |
| Médium: | Journal Article |
| Jazyk: | angličtina |
| Vydáno: |
Zurich
Trans Tech Publications Ltd
01.11.2010
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| Témata: | |
| ISBN: | 0878492224, 9780878492220 |
| ISSN: | 1660-9336, 1662-7482, 1662-7482 |
| On-line přístup: | Získat plný text |
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| Shrnutí: | 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. |
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| Bibliografie: | Selected, peer-reviewed papers from the International Conference on Engineering Design and Optimization (ICEDO 2010), 28-30 October 2010, Ningbo, P. R. China ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 |
| ISBN: | 0878492224 9780878492220 |
| ISSN: | 1660-9336 1662-7482 1662-7482 |
| DOI: | 10.4028/www.scientific.net/AMM.37-38.46 |