In order to exchange and share information among the conceptual models of data warehouse, and to build a solid base for the integration and share of metadata, a new multidimensional concept model is presented based on...In order to exchange and share information among the conceptual models of data warehouse, and to build a solid base for the integration and share of metadata, a new multidimensional concept model is presented based on XML and its DTD is defined, which can perfectly describe various semantic characteristics of multidimensional conceptual model. According to the multidimensional conceptual modeling technique which is based on UML, the mapping algorithm between the multidimensional conceptual model is described based on XML and UML class diagram, and an application base for the wide use of this technique is given.展开更多
本文基于建筑信息模型(building information modeling,BIM)技术,提出一种多维信息融合可视化的模型驱动冲突分析方法,对施工流程进行系统优化,合理把控施工进度。制冷机房作为机电安装中的关键环节,因设备多样、重量大、管线复杂、施...本文基于建筑信息模型(building information modeling,BIM)技术,提出一种多维信息融合可视化的模型驱动冲突分析方法,对施工流程进行系统优化,合理把控施工进度。制冷机房作为机电安装中的关键环节,因设备多样、重量大、管线复杂、施工难度高而成为项目管理的重点与难点,本文基于BIM技术与工厂装配式施工的集成应用,提出模块化制冷机房的系统化施工方法、BIM+物联网融合的栈桥式轨道移动技术等4项核心技术,可使泵组模块误差减少85%,装配安装效率提升达90%,显著提升了施工质量、效率和安全性,为复杂机房的精益建造与数字化管理提供有力的实践参考。展开更多
文摘In order to exchange and share information among the conceptual models of data warehouse, and to build a solid base for the integration and share of metadata, a new multidimensional concept model is presented based on XML and its DTD is defined, which can perfectly describe various semantic characteristics of multidimensional conceptual model. According to the multidimensional conceptual modeling technique which is based on UML, the mapping algorithm between the multidimensional conceptual model is described based on XML and UML class diagram, and an application base for the wide use of this technique is given.
文摘本文基于建筑信息模型(building information modeling,BIM)技术,提出一种多维信息融合可视化的模型驱动冲突分析方法,对施工流程进行系统优化,合理把控施工进度。制冷机房作为机电安装中的关键环节,因设备多样、重量大、管线复杂、施工难度高而成为项目管理的重点与难点,本文基于BIM技术与工厂装配式施工的集成应用,提出模块化制冷机房的系统化施工方法、BIM+物联网融合的栈桥式轨道移动技术等4项核心技术,可使泵组模块误差减少85%,装配安装效率提升达90%,显著提升了施工质量、效率和安全性,为复杂机房的精益建造与数字化管理提供有力的实践参考。
