介绍了车载MOST(Media Oriented Systems Transport)网络和CAN网络的结构与功能,阐述了MOST/CAN网络网关的硬件结构和软件实现,以及MOST网络和CAN网络之间通过网关进行数据交换的原理。该网关实现了MOST网络中以文件和命令形式传输的数...介绍了车载MOST(Media Oriented Systems Transport)网络和CAN网络的结构与功能,阐述了MOST/CAN网络网关的硬件结构和软件实现,以及MOST网络和CAN网络之间通过网关进行数据交换的原理。该网关实现了MOST网络中以文件和命令形式传输的数据与CAN网络之间的交换,使MOST网络中车载系统与CAN网络中的系统之间能够进行参数的传递。展开更多
为解决车载CAN(Controller Area Network)网络和MOST(Media Oriented Systems Transport)网络间的数据共享问题,提出了一种CAN/MOST网关的设计方案。通过分析两种网络的网络模型,构建了CAN网络和MOST网络互联的核心技术——CAN/MOST网...为解决车载CAN(Controller Area Network)网络和MOST(Media Oriented Systems Transport)网络间的数据共享问题,提出了一种CAN/MOST网关的设计方案。通过分析两种网络的网络模型,构建了CAN网络和MOST网络互联的核心技术——CAN/MOST网关的系统结构,并在此结构的基础上实现了基于单片机89S51的网关的硬件设计和软件流程。该网关完成了CAN网络和MOST网络的互联,使不同的车载网络设备能共享数据。展开更多
In view of the usefulness of Empirical Mode Decomposition （EMD）, Artificial Neural Networks （ ANN）, and Most Relevant Matching Extension （MRME） methods in dealing with nonlinear signals, we pro- pose a new way o...In view of the usefulness of Empirical Mode Decomposition （EMD）, Artificial Neural Networks （ ANN）, and Most Relevant Matching Extension （MRME） methods in dealing with nonlinear signals, we pro- pose a new way of combining these methods to deal with signal prediction. We found the results of combining EMD with either ANN or MRME to have higher prediction precision for a time series than the result of using EMD alone.展开更多
传输通信系统(Media Oriented System Transport,MOST)网络在车载多媒体通信等场合有着广泛的应用,目前针对MOST网络的研究多针对MOST25、MOST50等,而MOST150网络具有带宽高,速率快的优点,适用于车载多媒体通信,但其在车载电控系统中的...传输通信系统(Media Oriented System Transport,MOST)网络在车载多媒体通信等场合有着广泛的应用,目前针对MOST网络的研究多针对MOST25、MOST50等,而MOST150网络具有带宽高,速率快的优点,适用于车载多媒体通信,但其在车载电控系统中的应用较少。为此,本文针对MOST150网络及其功能特点进行了介绍,提出了MOST150网络及CAN-MOST模块在电动汽车用电池管理系统(Battery Management System,BMS)的应用,并进行实验验证,结果表明加入MOST的电池管理系统抗干扰以及复杂环境下的信号长距离传输能力有较大提升。展开更多
In this paper, some issues related to design and analysis of real networked control systems （NCS） under the focus of the most likely region of stability are addressed. Such a system is cumbersome due to its inherent...In this paper, some issues related to design and analysis of real networked control systems （NCS） under the focus of the most likely region of stability are addressed. Such a system is cumbersome due to its inherent variable time delays, ranging from microseconds to hours. To show the influence of such huge variations in the control performance, a laboratory-scale luminosity system has been setup using the Internet as part of the control loop with dominant time constant in the order of milliseconds. Proportional and integral （PI） control strategies with and without explicit compensation for the time-delay variations were implemented using an event-driven controller. Using the well-known Monte Carlo method and subsequent analyses of time responses, it has been possible to identify the most likely region of stability. Some experimental results show the influence of the statistical parameters of the delays on the determination of the most likely regions of stability of the NCS and how these can be used in assessment and redesign of the control system. The experiments show that much larger delays than one sample period can be supported by real NCSs without becoming unstable.展开更多
对当今车载多媒体网络技术的发展背景、技术特点和未来趋势进行综述。分别介绍了MOST(Media Oriented System Transport)网络技术、IDB-1394网络技术和车载以太网络技术,对其发展历史、基本特点以及研究现状等进行概括、分析和比较,并...对当今车载多媒体网络技术的发展背景、技术特点和未来趋势进行综述。分别介绍了MOST(Media Oriented System Transport)网络技术、IDB-1394网络技术和车载以太网络技术,对其发展历史、基本特点以及研究现状等进行概括、分析和比较,并列举三种车载多媒体网络技术的优点与缺点。最后对车载多媒体网络技术有待深入研究的热点和发展趋势进行展望。展开更多
文摘介绍了车载MOST(Media Oriented Systems Transport)网络和CAN网络的结构与功能,阐述了MOST/CAN网络网关的硬件结构和软件实现,以及MOST网络和CAN网络之间通过网关进行数据交换的原理。该网关实现了MOST网络中以文件和命令形式传输的数据与CAN网络之间的交换,使MOST网络中车载系统与CAN网络中的系统之间能够进行参数的传递。
文摘为解决车载CAN(Controller Area Network)网络和MOST(Media Oriented Systems Transport)网络间的数据共享问题,提出了一种CAN/MOST网关的设计方案。通过分析两种网络的网络模型,构建了CAN网络和MOST网络互联的核心技术——CAN/MOST网关的系统结构,并在此结构的基础上实现了基于单片机89S51的网关的硬件设计和软件流程。该网关完成了CAN网络和MOST网络的互联,使不同的车载网络设备能共享数据。
基金supporteal by the Notional Natural Scince Foundation of Hebei Province(D201000921)
文摘In view of the usefulness of Empirical Mode Decomposition （EMD）, Artificial Neural Networks （ ANN）, and Most Relevant Matching Extension （MRME） methods in dealing with nonlinear signals, we pro- pose a new way of combining these methods to deal with signal prediction. We found the results of combining EMD with either ANN or MRME to have higher prediction precision for a time series than the result of using EMD alone.
基金supported by the Energy Utility Company of Minas Gerais(CEMIG)
文摘In this paper, some issues related to design and analysis of real networked control systems （NCS） under the focus of the most likely region of stability are addressed. Such a system is cumbersome due to its inherent variable time delays, ranging from microseconds to hours. To show the influence of such huge variations in the control performance, a laboratory-scale luminosity system has been setup using the Internet as part of the control loop with dominant time constant in the order of milliseconds. Proportional and integral （PI） control strategies with and without explicit compensation for the time-delay variations were implemented using an event-driven controller. Using the well-known Monte Carlo method and subsequent analyses of time responses, it has been possible to identify the most likely region of stability. Some experimental results show the influence of the statistical parameters of the delays on the determination of the most likely regions of stability of the NCS and how these can be used in assessment and redesign of the control system. The experiments show that much larger delays than one sample period can be supported by real NCSs without becoming unstable.
文摘对当今车载多媒体网络技术的发展背景、技术特点和未来趋势进行综述。分别介绍了MOST(Media Oriented System Transport)网络技术、IDB-1394网络技术和车载以太网络技术,对其发展历史、基本特点以及研究现状等进行概括、分析和比较,并列举三种车载多媒体网络技术的优点与缺点。最后对车载多媒体网络技术有待深入研究的热点和发展趋势进行展望。
