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1.
阐述了基于高精度串行A/D转换器CS5460A的数据采集系统的设计及实现方法。硬件方面,简单介绍了单片机与各芯片的接口设计及CS5460A与传感器的接口电路设计;软件方面,介绍了该系统的主程序流程图,并重点介绍了如何采用软件滤波的方法来提高系统的抗干扰能力。该系统中,单片机与上位机之间采用MODBUS协议进行通讯,并详细叙述了CRC冗余算法的实现问题。软件滤波和CRC的使用,使该系统精度得到了极大地提高,可靠性更强,适应了工程的需要。  相似文献   

2.
为了更精确地对城市的路灯进行智能监控,采用CS5460A及MC13213组成单灯测控节点,将ZigBee技术应用到照明监控系统中去。详细论述了单灯测控系统的设计过程及CS5460A的编程配置。系统具有电路简单、体积小、功耗低、精度高、成本低等特点,具有较高的实用价值。  相似文献   

3.
林献坤  于垂顺 《测控技术》2012,31(7):122-125
分析执行机构电动机扭矩测量的现状及存在的问题,设计一种基于DSP和CS5460A为核心的瞬时能量扭矩软测量系统。通过类SPI组织方式采集瞬时能量,给出测量功能的软件实现方法,最后通过加载不同的负载试验,得到执行机构电动机输出扭矩与瞬时能量之间的关系。具体应用表明,设计的测量系统具有精度高、实时性好和抗干扰性强等优点。  相似文献   

4.
倪榕生 《福建电脑》2006,(1):186-187
本文介绍一种电力参数监测及数据传输系统。系统能同时监测三相电压、电流、功率、电度和功率因数等。并通过GPRS网。实现电参数的远程传输;系统下住机采用专用的CS5460A作为A/D转换器。不仅提高检测精度,而且缩短了系统开发周期。上住机采用VB6.0和Access数据库,完成数据通信、分析、处理等功能。  相似文献   

5.
本文介绍了电能计量芯片CS5460A的功能和使用方法,给出了采用CS5460A芯片与微处理器连接设计列车供电电度表的方案,并进行了样机实验。实验结果验证了该设计的可行性和有效性。  相似文献   

6.
针对传统的电量采集处理系统抗干扰能力差,功能单一的缺陷,提出了一种采用专用电能计量芯片CS5460A的三相电量采集系统,利用CS5460A进行电量采集,P89LPC932单片机做数据处理,通过Serial Peripheral Interface(SPl)g口传送电流、电压、有功、无功等实时测量值,并用以太网控制器ENC28J60,实现以太网通信,配合上位机显示,对电能进行集中管理.  相似文献   

7.
介绍了一种基于CS5460A的单相智能功率表的设计。本设计以AVR单片机MEGA128为系统的控制核心,运用带SPI接口的功率计量芯片CS5460A,系统配置RS485接口,128×64点阵LCD、键盘输入、实时时钟、FLASH存储器等。该功率表要实现的主要功能是功率参数的实时测量,存储与显示,并能够实现与PC机的通信。  相似文献   

8.
CS5460A芯片及其实现的单相电能表现场校验仪   总被引:3,自引:0,他引:3  
介绍了CS5460A专用芯片及其实现的单相电能表现场校验仪的硬件框图,软件编程及调试中的关键问题等。  相似文献   

9.
针对水下地震信号的特点,设计研制了一个24位分辨率精度、120dB动态范围的地震数据采集系统。通过采用基于Sigma—Delta技术的24位ADC芯片CS5372和配合使用的数字滤波芯片CS5376A,在一个采集板上实现了四个通道的数据采集。前端模拟处理采用电荷放大器结构,后端控制和通信采用一片FPGA,实现了采集系统的高性能和高可靠性,N时采用DAC芯片CS4373实现系统的自检测试,为系统的可维护性提供方便。  相似文献   

10.
简要介绍了CS5460的内部结构与功能,描述了基于CS5460的矿用电量变送器的总体设计,较为详细地介绍了CS5460的模拟量输入接口设计、与单片机的通信接口设计、输出接口设计及软件设计等。  相似文献   

11.
Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.  相似文献   

12.
European Community policy and the market   总被引:1,自引:0,他引:1  
Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.  相似文献   

13.
融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。  相似文献   

14.
Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.  相似文献   

15.
This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.  相似文献   

16.
Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008  相似文献   

17.
为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.  相似文献   

18.
Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.  相似文献   

19.
《计算机科学》2007,34(4):148-148
Recent years have seen rapid advances in various grid-related technologies, middleware, and applications. The GCC conference has become one of the largest scientific events worldwide in grid and cooperative computing. The 6th international conference on grid and cooperative computing (GCC2007) Sponsored by China Computer Federation (CCF),Institute of Computing Technology, Chinese Academy of Sciences (ICT) and Xinjiang University ,and in Cooperation with IEEE Computer Soceity ,is to be held from August 16 to 18, 2007 in Urumchi, Xinjiang, China.  相似文献   

20.
This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)SM and Team Software Process (TSP){SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.  相似文献   

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