Kernel and Functional Mechanisms Refinement of Automatic Virtual Metrology System
碩士 === 國立成功大學 === 製造資訊與系統研究所碩博士班 === 98 === Virtual Metrology (VM) refers to a technology that is able to conjecture product quality using important parameter data of production equipment and adopting a proper prediction scheme without conducting real metrology. In an automatic VM system (AVMS), the...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2010
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| Online Access: | http://ndltd.ncl.edu.tw/handle/00478909290894133411 |
| Summary: | 碩士 === 國立成功大學 === 製造資訊與系統研究所碩博士班 === 98 === Virtual Metrology (VM) refers to a technology that is able to conjecture product quality using important parameter data of production equipment and adopting a proper prediction scheme without conducting real metrology. In an automatic VM system (AVMS), the VM manager is the core of system's operations and the communication bridge among subsystems. It is responsible for distributing commands to each subsystem and possesses access privilege to the central database. This thesis aims to develop a new kernel and refine functional mechanisms for the VM manager such that the total execution efficiency of AVMS can be effectively enhanced. The major improvements include the following. The interface design is enriched to possess multi-interface capabilities. The parallel processing technology is adopted to enable the loop computation to execute more efficiently. Multithreading is supported such that the system can decide how many messages can be processed simultaneously according to the hardware grade for the purpose of prompt responses. The message processing mechanism is reformed for allowing the system to trace the status of each message and have different processing modes based on the importance levels of the messages. Integrated testing results show that the developed new kernel and various functional mechanisms of the VM manager can indeed achieve the design objectives.
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