This paper deals with a new hardware/software embedded system design methodology based on design pattern approach by development of a new design tool called smartcell. Three main constraints of embedded systems design...This paper deals with a new hardware/software embedded system design methodology based on design pattern approach by development of a new design tool called smartcell. Three main constraints of embedded systems design process are investigated: the complexity, the partitioning between hardware and software aspects and the reusability. Two intermediate models are carried out in order to solve the complexity problem. The partitioning problem deals with the proposed hardware/software partitioning algorithm based on Ant Colony Optimisation. The reusability problem is resolved by synthesis of intellectual property blocks. Specification and integration of an intelligent controller on heterogeneous platform are considered to illustrate the proposed approach.展开更多
In this paper, we propose a novel methodology to guide and assist practitioners supporting software architecture and design activities in agile environments. Software architecture and design is the skeleton of a syste...In this paper, we propose a novel methodology to guide and assist practitioners supporting software architecture and design activities in agile environments. Software architecture and design is the skeleton of a system. It defines how the system has to behave in terms of different functional and non-functional requirements. Currently, a clear specification of software architectural design activities and processes in agile environments does not exist. Our methodology describes in detail the phases in the agile software design process and proposes techniques and tools to implement these phases.展开更多
为提高造纸机真空部的自动化控制水平,提升造纸企业的成本控制能力,基于PLC和真空度传感器等硬件对变频器功率实施控制,进而实现对水泵和真空泵的动态调整,使水流量和变频器功率维持在较低水平,降低造纸机干燥部运行能耗。为实现该系统...为提高造纸机真空部的自动化控制水平,提升造纸企业的成本控制能力,基于PLC和真空度传感器等硬件对变频器功率实施控制,进而实现对水泵和真空泵的动态调整,使水流量和变频器功率维持在较低水平,降低造纸机干燥部运行能耗。为实现该系统的工业应用,提出了纸机能耗控制系统的主程序流程,同时采用WinCC(Windows Control Center,视窗控制中心)组态软件为上位机设计人机交互界面。该操作界面简洁美观、交互友好,可帮助车间工作人员实时掌握纸机真空部运行数据,合理调整真空部变频器运行功率,实现低能耗生产。展开更多
文摘This paper deals with a new hardware/software embedded system design methodology based on design pattern approach by development of a new design tool called smartcell. Three main constraints of embedded systems design process are investigated: the complexity, the partitioning between hardware and software aspects and the reusability. Two intermediate models are carried out in order to solve the complexity problem. The partitioning problem deals with the proposed hardware/software partitioning algorithm based on Ant Colony Optimisation. The reusability problem is resolved by synthesis of intellectual property blocks. Specification and integration of an intelligent controller on heterogeneous platform are considered to illustrate the proposed approach.
文摘In this paper, we propose a novel methodology to guide and assist practitioners supporting software architecture and design activities in agile environments. Software architecture and design is the skeleton of a system. It defines how the system has to behave in terms of different functional and non-functional requirements. Currently, a clear specification of software architectural design activities and processes in agile environments does not exist. Our methodology describes in detail the phases in the agile software design process and proposes techniques and tools to implement these phases.
文摘为提高造纸机真空部的自动化控制水平,提升造纸企业的成本控制能力,基于PLC和真空度传感器等硬件对变频器功率实施控制,进而实现对水泵和真空泵的动态调整,使水流量和变频器功率维持在较低水平,降低造纸机干燥部运行能耗。为实现该系统的工业应用,提出了纸机能耗控制系统的主程序流程,同时采用WinCC(Windows Control Center,视窗控制中心)组态软件为上位机设计人机交互界面。该操作界面简洁美观、交互友好,可帮助车间工作人员实时掌握纸机真空部运行数据,合理调整真空部变频器运行功率,实现低能耗生产。