The design of a control system for the material transport as used in gear-box flexible manufacturing system is presented in this paper. The scope of investigation covers material transport control, automatic vehicle, ...The design of a control system for the material transport as used in gear-box flexible manufacturing system is presented in this paper. The scope of investigation covers material transport control, automatic vehicle, material exchange station, multi-storeyed warehouse system, NC and CNC machines and host computer etc. The paper describes the transport control system and its design, and briefly describes the communication among devices and warehouse access principles.展开更多
本文提出一种新的更适合柔性制造系统(FMS)建模的扩展高级E-Net,简称EHLEP-N(Extended High Level Evaluation Petri Net)。将EHLEP-N与专家系统技术相结合,使EHLEP-N对FMS更具有描述性,推理和决策能力。以EHLEP-N为FMS的建模工具,设计...本文提出一种新的更适合柔性制造系统(FMS)建模的扩展高级E-Net,简称EHLEP-N(Extended High Level Evaluation Petri Net)。将EHLEP-N与专家系统技术相结合,使EHLEP-N对FMS更具有描述性,推理和决策能力。以EHLEP-N为FMS的建模工具,设计并建立FMS实时调度控制专家系统。借助于该系统,提出并研究新的旨在减少空闲(noinputs)和消除阻塞的实时动态再调度规则。加工实验结果表明:1) 该系统满足实时性和调度控制功能的要求;2) 新规则的产率(throughputs)比传统规则平均提高7％。展开更多
文摘The design of a control system for the material transport as used in gear-box flexible manufacturing system is presented in this paper. The scope of investigation covers material transport control, automatic vehicle, material exchange station, multi-storeyed warehouse system, NC and CNC machines and host computer etc. The paper describes the transport control system and its design, and briefly describes the communication among devices and warehouse access principles.
文摘本文提出一种新的更适合柔性制造系统(FMS)建模的扩展高级E-Net,简称EHLEP-N(Extended High Level Evaluation Petri Net)。将EHLEP-N与专家系统技术相结合,使EHLEP-N对FMS更具有描述性,推理和决策能力。以EHLEP-N为FMS的建模工具,设计并建立FMS实时调度控制专家系统。借助于该系统,提出并研究新的旨在减少空闲(noinputs)和消除阻塞的实时动态再调度规则。加工实验结果表明:1) 该系统满足实时性和调度控制功能的要求;2) 新规则的产率(throughputs)比传统规则平均提高7％。
