针对信息物理生产系统(Cyber-Physical Production System,CPPS)面临的安全一体化设计与工程难题,本文对安全一体化设计实现过程进行了研究,对功能安全和信息安全在设计过程中的协同设计要点进行了分析,构建了包含安全兼容性设计、安全...针对信息物理生产系统(Cyber-Physical Production System,CPPS)面临的安全一体化设计与工程难题,本文对安全一体化设计实现过程进行了研究,对功能安全和信息安全在设计过程中的协同设计要点进行了分析,构建了包含安全兼容性设计、安全一体化验证和安全一体化增强三个方面的安全一体化协同设计实现技术体系。展开更多
Dear Editor,To tackle the global challenges of climate change and energy secu-r ity, building low carbon energy systems has become a research hotspot. Cyber-physical power systems(CPPSs) is an important infrastructure...Dear Editor,To tackle the global challenges of climate change and energy secu-r ity, building low carbon energy systems has become a research hotspot. Cyber-physical power systems(CPPSs) is an important infrastructure to link both energy and transport systems, two major sectors that are difficult to decarbonize, and it is necessary to establish CPPSs model to consider the integration of both renewable energy and electric vehicle(EV).展开更多
The recently experienced hype concerning the so-called “4<sup>th</sup> Industrial Revolution” of production systems has prompted several papers of various subtopics regarding Cyber-Phdysical Production S...The recently experienced hype concerning the so-called “4<sup>th</sup> Industrial Revolution” of production systems has prompted several papers of various subtopics regarding Cyber-Phdysical Production Systems (CPPS). However, important aspects such as the modelling of CPPS to understand the theory regarding the performance of highly non-ergodic and non-deterministic flexible manufacturing systems in terms of Exit Rate (ER), Manufacturing Lead Time (MLT), and On-Time Delivery (OTD) have not yet been examined systematically and even less modeled analytically. To develop the topic, in this paper, the prerequisites for modelling such systems are defined in order to be able to derive an explicit and dedicated production mathematics-based understanding of CPPS and its dynamics: switching from explorative simulation to rational modelling of the manufacturing “physics” led to an own and specific manufacturing theory. The findings have led to enouncing, among others, the Theorem of Non-Ergodicity as well as the Batch Cycle Time Deviation Function giving important insights to model digital twin-based CPPS for complying with the mandatory OTD.展开更多
该文基于信息系统物理化的设想提出电力信息物理系统(cyber-physical power system,CPPS)中的信息流建模和计算分析方法。采用连续时间函数来刻画信息流的特征,并定义信息网络运行参数为流量累积函数、信息流速和时延。首先,基于遍历法...该文基于信息系统物理化的设想提出电力信息物理系统(cyber-physical power system,CPPS)中的信息流建模和计算分析方法。采用连续时间函数来刻画信息流的特征,并定义信息网络运行参数为流量累积函数、信息流速和时延。首先,基于遍历法搜索出信息流路径,建立信息流速矩阵的范式;然后利用改进的网络演算(network calculus,NC)特性赋值流速矩阵的元素;进一步采用流量累积函数表征信源数据发送规律,从而显式求解时延上界。最后将提出的信息流建模方法应用于智能变电站自动化系统的时延计算,通过与OPNET的仿真结果相比较,验证所提出模型的有效性,而且该方法可以提供定量分析指标以优化变电站组网方案设计中的信息流分布。展开更多
赛博物理生产系统(Cyber-Physical Production Systems,CPPS)目前已成为工业界与学术界的研究热点,各制造强国也纷纷将其作为提升本国制造业全球竞争力的核心技术之一。首先详细阐述了赛博物理系统(CyberPhysical Systems,CPS)以及CPPS...赛博物理生产系统(Cyber-Physical Production Systems,CPPS)目前已成为工业界与学术界的研究热点,各制造强国也纷纷将其作为提升本国制造业全球竞争力的核心技术之一。首先详细阐述了赛博物理系统(CyberPhysical Systems,CPS)以及CPPS的概念,并提出了CPPS的5个关键特征;其次,指出了CPPS研究中所重点关注的技术领域;最后,介绍了CPPS在航空领域的应用以及对我国制造企业的启示。展开更多
文摘针对信息物理生产系统(Cyber-Physical Production System,CPPS)面临的安全一体化设计与工程难题,本文对安全一体化设计实现过程进行了研究,对功能安全和信息安全在设计过程中的协同设计要点进行了分析,构建了包含安全兼容性设计、安全一体化验证和安全一体化增强三个方面的安全一体化协同设计实现技术体系。
基金supported by Project of Science and Technology Commission of Shanghai Municipality(19510750300,21190780300,20JC1414000)111 Project(D18003)the National Science Foundation of China(92067106)。
文摘Dear Editor,To tackle the global challenges of climate change and energy secu-r ity, building low carbon energy systems has become a research hotspot. Cyber-physical power systems(CPPSs) is an important infrastructure to link both energy and transport systems, two major sectors that are difficult to decarbonize, and it is necessary to establish CPPSs model to consider the integration of both renewable energy and electric vehicle(EV).
文摘The recently experienced hype concerning the so-called “4<sup>th</sup> Industrial Revolution” of production systems has prompted several papers of various subtopics regarding Cyber-Phdysical Production Systems (CPPS). However, important aspects such as the modelling of CPPS to understand the theory regarding the performance of highly non-ergodic and non-deterministic flexible manufacturing systems in terms of Exit Rate (ER), Manufacturing Lead Time (MLT), and On-Time Delivery (OTD) have not yet been examined systematically and even less modeled analytically. To develop the topic, in this paper, the prerequisites for modelling such systems are defined in order to be able to derive an explicit and dedicated production mathematics-based understanding of CPPS and its dynamics: switching from explorative simulation to rational modelling of the manufacturing “physics” led to an own and specific manufacturing theory. The findings have led to enouncing, among others, the Theorem of Non-Ergodicity as well as the Batch Cycle Time Deviation Function giving important insights to model digital twin-based CPPS for complying with the mandatory OTD.
文摘该文基于信息系统物理化的设想提出电力信息物理系统(cyber-physical power system,CPPS)中的信息流建模和计算分析方法。采用连续时间函数来刻画信息流的特征,并定义信息网络运行参数为流量累积函数、信息流速和时延。首先,基于遍历法搜索出信息流路径,建立信息流速矩阵的范式;然后利用改进的网络演算(network calculus,NC)特性赋值流速矩阵的元素;进一步采用流量累积函数表征信源数据发送规律,从而显式求解时延上界。最后将提出的信息流建模方法应用于智能变电站自动化系统的时延计算,通过与OPNET的仿真结果相比较,验证所提出模型的有效性,而且该方法可以提供定量分析指标以优化变电站组网方案设计中的信息流分布。
文摘赛博物理生产系统(Cyber-Physical Production Systems,CPPS)目前已成为工业界与学术界的研究热点,各制造强国也纷纷将其作为提升本国制造业全球竞争力的核心技术之一。首先详细阐述了赛博物理系统(CyberPhysical Systems,CPS)以及CPPS的概念,并提出了CPPS的5个关键特征;其次,指出了CPPS研究中所重点关注的技术领域;最后,介绍了CPPS在航空领域的应用以及对我国制造企业的启示。
