New energy vehicles(NEVs) are gaining wider acceptance as the transportation sector is developing more environmentally friendly and sustainable technology. To solve problems of complex application scenarios and multi-...New energy vehicles(NEVs) are gaining wider acceptance as the transportation sector is developing more environmentally friendly and sustainable technology. To solve problems of complex application scenarios and multi-sources heterogenous data for new energy vehicles and weak platform scalability,the framework of an intelligent decision support platform is proposed in this paper. The principle of software and hardware system is introduced. Hadoop is adopted as the software system architecture of the platform. Master-standby redundancy and dual-line redundancy ensure the reliability of the hardware system. In addition, the applications on the intelligent decision support platform in usage patterns recognition, energy consumption, battery state of health and battery safety analysis are also described.展开更多
This paper presents an embedded software platform used in the telecom field.The platform consists of the Virtual Operating System (VOS)layer,core layer, protection layer and module layer.It supports and simplifies upp...This paper presents an embedded software platform used in the telecom field.The platform consists of the Virtual Operating System (VOS)layer,core layer, protection layer and module layer.It supports and simplifies upper application software of telecom systems.In addition to basic modules and functions, its instance scheduling model and distributed process communication are detailed in the paper.展开更多
Cyber physical systems(CPSs) incorporate computation, communication, and physical processes. The deep coupling and continuous interaction between such processes lead to a significant increase in complexity in the desi...Cyber physical systems(CPSs) incorporate computation, communication, and physical processes. The deep coupling and continuous interaction between such processes lead to a significant increase in complexity in the design and implementation of CPSs. Consequently, whereas developing CPSs from scratch is inefficient, developing them with the aid of CPS run-time supporting platforms can be efficient. In recent years, much research has been actively conducted on CPS run-time supporting platforms. However, few surveys have been conducted on these platforms. In this paper, we analyze and evaluate existing CPS run-time supporting platforms by first classifying them into three categories from the viewpoint of software architecture: component-based platforms, service-based platforms, and agent-based platforms. Then, for each type, we detail its design philosophy, key technical problems, and corresponding solutions with specific use cases. Subsequently, we compare existing platforms from two aspects: construction approaches for CPS tasks and support for non-functional properties. Finally, we outline several important future research issues.展开更多
海南省陵水县陵河知音桥为双层异形景观桥,跨河段由上层桥、下层桥、支桥与中心平台交错组成。上、下层桥分别为跨径布置(74.46+93+93+78)m和(77.56+71.52+71.52+76.06)m的4跨V形刚构桥,采用单箱室斜腹板钢箱梁;中心平台为2×23.98 ...海南省陵水县陵河知音桥为双层异形景观桥,跨河段由上层桥、下层桥、支桥与中心平台交错组成。上、下层桥分别为跨径布置(74.46+93+93+78)m和(77.56+71.52+71.52+76.06)m的4跨V形刚构桥,采用单箱室斜腹板钢箱梁;中心平台为2×23.98 m 2跨预应力混凝土V形刚构平台,采用预应力混凝土箱梁;主墩(主5号墩)采用C50混凝土双肢薄壁空心墩,基础采用嵌岩桩+承台结构形式。采用钢栈桥作为施工通道及钢箱梁吊装平台,利用BIM技术优化了钢栈桥平面布置。中心平台V形墩采用斜拉扣挂支架+满堂支架支撑组合支撑体系分段施工;中心平台采用支架整体预压、混凝土分段浇筑施工。钢箱梁采用三维建模软件深化设计、平位预拼装的加工制造方案和先吊装边跨、再整体横向滑移中心段、最后分段合龙的安装方案。展开更多
基金supported by the National Key Research and Development Program of China (2019YFB1600800)。
文摘New energy vehicles(NEVs) are gaining wider acceptance as the transportation sector is developing more environmentally friendly and sustainable technology. To solve problems of complex application scenarios and multi-sources heterogenous data for new energy vehicles and weak platform scalability,the framework of an intelligent decision support platform is proposed in this paper. The principle of software and hardware system is introduced. Hadoop is adopted as the software system architecture of the platform. Master-standby redundancy and dual-line redundancy ensure the reliability of the hardware system. In addition, the applications on the intelligent decision support platform in usage patterns recognition, energy consumption, battery state of health and battery safety analysis are also described.
文摘This paper presents an embedded software platform used in the telecom field.The platform consists of the Virtual Operating System (VOS)layer,core layer, protection layer and module layer.It supports and simplifies upper application software of telecom systems.In addition to basic modules and functions, its instance scheduling model and distributed process communication are detailed in the paper.
基金supported by the Integrated Science-Technology Innovation Plan of Shaanxi Province,China(No.2015KTZDGY06-03)
文摘Cyber physical systems(CPSs) incorporate computation, communication, and physical processes. The deep coupling and continuous interaction between such processes lead to a significant increase in complexity in the design and implementation of CPSs. Consequently, whereas developing CPSs from scratch is inefficient, developing them with the aid of CPS run-time supporting platforms can be efficient. In recent years, much research has been actively conducted on CPS run-time supporting platforms. However, few surveys have been conducted on these platforms. In this paper, we analyze and evaluate existing CPS run-time supporting platforms by first classifying them into three categories from the viewpoint of software architecture: component-based platforms, service-based platforms, and agent-based platforms. Then, for each type, we detail its design philosophy, key technical problems, and corresponding solutions with specific use cases. Subsequently, we compare existing platforms from two aspects: construction approaches for CPS tasks and support for non-functional properties. Finally, we outline several important future research issues.
文摘海南省陵水县陵河知音桥为双层异形景观桥,跨河段由上层桥、下层桥、支桥与中心平台交错组成。上、下层桥分别为跨径布置(74.46+93+93+78)m和(77.56+71.52+71.52+76.06)m的4跨V形刚构桥,采用单箱室斜腹板钢箱梁;中心平台为2×23.98 m 2跨预应力混凝土V形刚构平台,采用预应力混凝土箱梁;主墩(主5号墩)采用C50混凝土双肢薄壁空心墩,基础采用嵌岩桩+承台结构形式。采用钢栈桥作为施工通道及钢箱梁吊装平台,利用BIM技术优化了钢栈桥平面布置。中心平台V形墩采用斜拉扣挂支架+满堂支架支撑组合支撑体系分段施工;中心平台采用支架整体预压、混凝土分段浇筑施工。钢箱梁采用三维建模软件深化设计、平位预拼装的加工制造方案和先吊装边跨、再整体横向滑移中心段、最后分段合龙的安装方案。
