We study the supervisory control of supply chain operation modelled by (timed) State Tree Structures (STS). We model each agent involved in a supply chain using holons. Three operational models, make-to-order, make-to-stock, and assemble-to-order are considered. A strong assumption on the original STS theory is weakened to allow events shared among agents to be located at different levels. A supervisor is synthesized for the example of a mattress supply chain with make-to-stock operation under certain specifications.
Moreover, a new version of the Timed STS framework is developed to allow events to have an upper time bound i.e. deadline. With Timed STS framework, more specifications requiring time measurement can be modeled and a supervisory control is synthesized for the timed model of a supply chain. For a nonempty supervisory synthesis result, the maximum time for the inventory periodic review rate, and the minimum cycle time for customer order satisfaction are achieved.
| Identifer | oai:union.ndltd.org:TORONTO/oai:tspace.library.utoronto.ca:1807/42966 |
| Date | 28 November 2013 |
| Creators | Izadian, Sina |
| Contributors | Wonham, Murray |
| Source Sets | University of Toronto |
| Language | en_ca |
| Detected Language | English |
| Type | Thesis |
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