Good equipment management is essential for the day to day management of an enterprise. Targeted at production opera-tion of the railway transportation department of a mining group and aimed at mine railway equipment m...Good equipment management is essential for the day to day management of an enterprise. Targeted at production opera-tion of the railway transportation department of a mining group and aimed at mine railway equipment management, we have estab-lished a management information system for the equipment in the entire process of the life cycle of equipment. The project deals with basic data about equipment, initial management, maintenance, operation and even disposal, based on a C/S and B/S structure. We adopted an object-oriented approach, dealing with software engineering, information engineering, economic and organizational measures. Thus, effective monitoring and control of the operation of railway equipment and its status in the entire process has been achieved.展开更多
By combining fault-tolerance with power management, this paper developed a new method for aperiodic task set for the problem of task scheduling and voltage allocation in embedded real-time systems. The scbedulability ...By combining fault-tolerance with power management, this paper developed a new method for aperiodic task set for the problem of task scheduling and voltage allocation in embedded real-time systems. The scbedulability of the system was analyzed through checkpointing and the energy saving was considered via dynamic voltage and frequency scaling. Simulation results showed that the proposed algorithm had better performance compared with the existing voltage allocation techniques. The proposed technique saves 51.5% energy over FT-Only and 19.9% over FT ＋ EC on average. Therefore, the proposed method was more appropriate for aperiodic tasks in embedded real-time systems.展开更多
随着电子装备体系化发展,项目群成为装备研发的主流模式。同时,装备硬件高度集成化,嵌入式软件占比高、规模大,软件质量对装备效能发挥的影响越来越重要。为提升嵌入式软件质量,提出一种适用于装备项目群的嵌入式软件配置管理方法。该...随着电子装备体系化发展,项目群成为装备研发的主流模式。同时,装备硬件高度集成化,嵌入式软件占比高、规模大,软件质量对装备效能发挥的影响越来越重要。为提升嵌入式软件质量,提出一种适用于装备项目群的嵌入式软件配置管理方法。该方法围绕分机定义嵌入式软件配置项,通过组建各级软件配置管理机构,利用基线把控分机整体的软件状态,构建物料清单(Bill of Material, BOM)结构树管理产品复用等手段,自顶向下实施技术状态管理。最终实现嵌入式软件提质增效,且能适应项目群资源紧张和软件高质量要求,沉淀的实践经验丰富了组织资产,为企业项目群嵌入式软件技术状态管理提供指导。展开更多
文摘Good equipment management is essential for the day to day management of an enterprise. Targeted at production opera-tion of the railway transportation department of a mining group and aimed at mine railway equipment management, we have estab-lished a management information system for the equipment in the entire process of the life cycle of equipment. The project deals with basic data about equipment, initial management, maintenance, operation and even disposal, based on a C/S and B/S structure. We adopted an object-oriented approach, dealing with software engineering, information engineering, economic and organizational measures. Thus, effective monitoring and control of the operation of railway equipment and its status in the entire process has been achieved.
基金The National Natural Science Foundationof China(No.60873030 )the National High-Tech Research and Development Plan of China(863 Program)(No.2007AA01Z309)
文摘By combining fault-tolerance with power management, this paper developed a new method for aperiodic task set for the problem of task scheduling and voltage allocation in embedded real-time systems. The scbedulability of the system was analyzed through checkpointing and the energy saving was considered via dynamic voltage and frequency scaling. Simulation results showed that the proposed algorithm had better performance compared with the existing voltage allocation techniques. The proposed technique saves 51.5% energy over FT-Only and 19.9% over FT ＋ EC on average. Therefore, the proposed method was more appropriate for aperiodic tasks in embedded real-time systems.
文摘随着电子装备体系化发展,项目群成为装备研发的主流模式。同时,装备硬件高度集成化,嵌入式软件占比高、规模大,软件质量对装备效能发挥的影响越来越重要。为提升嵌入式软件质量,提出一种适用于装备项目群的嵌入式软件配置管理方法。该方法围绕分机定义嵌入式软件配置项,通过组建各级软件配置管理机构,利用基线把控分机整体的软件状态,构建物料清单(Bill of Material, BOM)结构树管理产品复用等手段,自顶向下实施技术状态管理。最终实现嵌入式软件提质增效,且能适应项目群资源紧张和软件高质量要求,沉淀的实践经验丰富了组织资产,为企业项目群嵌入式软件技术状态管理提供指导。
