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Distribution Processing for Automated Storage/Retrieval System
國內使用中之自動倉儲系統均以PLC(Programmable Logic Controller)
Programmable Logic Controllers (PLCs) are the most common controller units which is used in automated storage/retrieval systems (AS/RS) presently. These PLCs are then liked to the decision making unit and or the management unit under the control of main computer for accomplishing the system integration. Since the AS/RS functional requirements, such as the high speed and accurate positioning of the S/R machine, are gaining in future, the current PLCs control structures may no longer adapt the complicate environments. The advantage characteristics in AS/RS management system for distributed processing which applies the system of Fuzzy-Integrated Programmable Logic Control (FPLC) and assimilates the control logic of software as well as management rules are the problem solver and the major consideration in this paper under this distributed processing structure, the main computer is served as a coordinating center that distributing the processed motion command to each auxiliary or subauxiliary node through the powerful communication network. And then each auxiliary node is setting accomplish the commands by its hard- and or soft-ware functions. This distributed processing makes it much easier in modular design. Moreover, it reduces the difficulties in modification and or extending. The user friendly interface makes the integration of the distributed processing and management decision system more easy to use. Furthermore, it may also monitor the opoeration during functioning.
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