查询词典 data bus

To solve the problem of direct communication failure or short distance communication between embedded devices and computer, based on C8051F040 single chip and its High-speed serial interface and CAN con- troller, a general data transmission embedded system has been developed. It can satisfy many kinds of bus interface configuration requirements.

为了解决嵌入式设备与计算机不能直接互联通信或者通信距离短的问题，基于C8051F040单片机和高速UART串行端口及其内置CAN控制器，开发一套适合多种总线接口配置要求的通用数据传输嵌入式系统。

The primary technical issues with streaming were:· having enough CPU power and bus bandwidth to support the required data rates · creating low-latency interrupt paths in the OS to prevent buffer underrun However, computer networks were still limited, and media was usually delivered over non-streaming channels, such as download of a digital file from a remote web server that was then saved to a local drive on the end users computer or as a digital file stored and played back from CD-ROMs.

与流主要的技术问题是：·有足够的 CPU 电源及巴士的带宽来支持创建低滞后时间的所需的数据率·中断 OS 为防止缓冲区不足中的路径但，计算机网络仍然有限，和媒体通常送非流信道，该等作为数字从远程 Web 服务器的最终用户计算机上的本地驱动器，然后保存文件的下载或作为一种数字文件存储和播放从 CD-ROM 回来。

The holistic design of the system and resolved the designs of software and hardware based on VXI bus are put forward according to the demand of test system. The hardware and software is designed, including the formation and design of hardware system, visual instrument software architecture, program design for instrument driver, high speed real-time data collection. In the dynamic test program, the idea of"software is instrument"was applied to meet the diverse test demands. Last, it is proposed that the VXI test system be developed to more totalization and networked. The basic theory of system identification was introduced briefly at first. The principle of spectrum analysis system identification based on Wiener-Hopf equation was expatiated. and the questions in applying Peusdo Random signal as spectrum analysis methods stimulate signal was studied, The generation principle of the peusdo random signal is researched, the characteristic of peusdo random are analyzed from time domain and frequency domain, the inverse repeat peusdo random signal is brought forward to make up the shortage of ordinary peusdo random signal. And a new chaos genetic algorithmis presented to solve the unprecise problem of the traditional method. In the servo valve dynamic characteristic test system, the spectrum analysis methods was applied successfully, the servo valve dynamic characteristic could be acquired rapidly and exactly, the test results were analyzed and the ameliorate methods were brought forward at last.

结合航天某集团液压测试中心测试系统的需求，提出了基于VXI总线的液压测试系统的整体设计方案，完成了测试系统的硬件设计与软件设计，包括硬件系统构成与设计、虚拟仪器软件结构、仪器驱动程序设计、高速同步实时数据采集等内容；以伺服阀动态特性测试为例设计了测试模块，该模块体现了VXI总线仪器软件开发所倡导的"虚拟仪器"的思想，以软件的灵活应用满足了不同的测试需求；结合自动测试系统的发展，研究了VXI测试系统与网络技术结合，实现各种软硬件资源共享，进一步提高设备及数据的利用率和系统的扩展性，使自动测试向综合化、网络化方向发展；研究了伪随机信号作为谱分析法辨识的激励信号时存在的问题，讨论了伪随机信号的产生机理，从频域和时域分析了伪随机信号的性质及其应用，提出了用逆重复伪随机信号弥补了普通伪随机信号的不足，并以混沌遗传算法对逆重复伪随机信号产生过程中的参数进行优化，可以更合理而不是凭经验产生需要的逆重复伪随机信号。

Vector Processor;Pipeline;Bus Protocol;Dependency;Data Processing Performance

向量机；流水线；总线协议；相关性；数据处理能力

This single RSDS bus conveys the 8-bit color data for XGA, and Wide XGA panels at 170 Mb/s when using VESA 60 Hz standard timing.

这种单总线传达了特别职务队8位彩色数据的XGA和宽幅的XGA在170 Mb / s的时候使用60赫兹的VESA标准时间面板。

The paper introduced a method about data collecting and management of coal weighbridge based on CAN bus and its realizing process.

介绍了一种基于CAN总线的煤矿地磅数据采集、管理的方法及实现过程。

This paper studied a new calorimetry system of data transferring,processing and controlling,which based on the PCI bus.

研究了一种基于PCI总线数据传输、处理、控制的新型量热仪系统，给出了详细的系统控制方案，介绍了PCI总线接口芯片PCI9052在ISA模式下的相关硬件设计、寄存器配置以及驱动程序模块设计思路。

At the same time, on the base of analysis of the present situation, the development trend and the leading edge technology, the necessity and feasibility about the exploitation of the full hydraulic bulldozer"s sate monitoring and fault diagnosis system is given; According to the structure, working feature and working environment, it works out system schema and system composition; The system is divided into display module, communication module and fault diagnosis module by means of block design, the implementation method and key parameter are also given; In light of the features of the full hydraulic bulldozer, the state monitoring and fault diagnosis platform composed of controller RC6-9 and display DI2/10 is designed based on CAN-Bus and the hardware design is completed; It lists the measured values and state of monitored parameters which should be real-time displayed in monitoring module as well as the data which will be transmitted; Furthermore, On the base of the study of, it gives 34 kinds of constant faults" diagnosis methods; Using BODAS software and DPS software, it compile the program code of the controller and the displayer; At last, this paper design and make the simulation test device of control system of construction machinery, through the experiment, the realizability, the categoricalness, the reliability, the stability and real-time are tested, in addition, the improved methods are given.

本文收集整理了国内外智能推土机研究的相关文献资料，综合分析了国内外智能推土机的研究现状、发展趋势和前沿技术，论证了开发全液压推土机智能系统的重要组成部分&全液压推土机状态监测与故障诊断系统&的必要性和可行性；根据全液压推土机的结构、作业特点和作业环境，制定了全液压推土机状态监测与故障诊断系统方案，确定了系统的结构组成；采用模块化设计方法，将整个系统分成了显示、通信和故障诊断三个模块，给出了各模块功能的实现方法，确定了各模块的关键技术参数：选用RC6-9和DI2／10作为系统的控制器和显示器，用CAN总线搭建了系统的通信平台，完成了系统的硬件设计；确定了系统监测参数和通信数据，对全液压推土机常见故障特征进行了分析，给出了34种常见故障的诊断方法；在BODAS软件和DPS软件的集成编程环境下，编写了控制器和显示器程序；设计并制作了工程机械控制系统模拟试验板，并在此基础上通过多次的程序调试与试验，对所设计的全液压推土机状态监测与故障诊断系统功能的可实现性、完备性、可靠性、稳定性和实时性进行了检验，证实了此系统的可行性，并提出了进一步的改进方案和措施。

The system uses a special acoustic emission sensors, combined with the DSP card as a dedicated hardware platform, through UBS2.0 extended to PC, In the environment of the Windows operating system ,using software programming method to configurate USB 2.0 bus ,then to operate the hard platform, Achieved a high sampling rate data acquisition system of Cavitation signal.

该系统采用特殊的声发射传感器，结合以DSP为核心的预处理卡作为专用硬件平台，通过UBS2.0扩展到上位机上，在视窗操作系统环境下使用软件编程的方法，以微机作为控制单元经USB2.0总线对硬件平台进行配置和操作，实现了对气蚀状态信号的高采样率的数据采集。

Single-chip processor shares DSP's bus and externalmemorizer to comp lete the exchange of data with DSP.

单片机与 DSP 共享 DSP 的总线和外部存储器，完成双CPU之间的数据交换。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。