共查询到20条相似文献，搜索用时 46 毫秒
1.
《实验室研究与探索》2017,(1):65-68
设计了一种纽扣式无线心率监测系统,该系统采用光电容积法(PPG)设计了一款纽扣式传感器实现对心率信号的采集和预处理,利用微处理器Atmega 328进行ADC和心率计算,通过蓝牙将处理后的数据上传给基于LabVIEW设计的心率监测软件,实现对心率信号长时间实时的监测。对5名受测人员分别使用心率监测系统和人工方法进行多次重复性心率测试,心率监测系统的误差小于2%。结果表明,该系统性能稳定,实现了语音提示、语音报警、数据库建立、海量数据存储等功能。 相似文献
2.
对大同供电分公司新荣支公司10kV配电线路的两个故障诊断系统（TAS配电线路故障诊断及运行监控系统、电力线路故障远程在线监测系统）的运行情况进行分析,阐明了实现在线监测的必要性,提出了供电线路综合监测系统的运行方案,从而初步实现了该支公司10kV配电线路的故障诊断,提高了供电可靠性,取得了较好的社会效益和经济效益。 相似文献
3.
4.
矿井环境安全监测监控系统实验装置是煤矿安全培训的重要设备,是按照实际的通用煤矿监测监控系统的结构设计的硬件仿真装置,采用和煤矿监测监控系统相同的工作模式,可以真实形象地演示矿井环境各种安全参数的监测监控的过程.系统采用由单片机组成下位机和PC机为上位机的集散控制方式(DCS).文中介绍了系统的硬件和软件的设计与实现方法,介绍了用查表法实现超越函数的方法. 相似文献
5.
对液压系统中滤芯寿命监测的相关问题和方法进行了分析,设计了基于物联网通信技术的滤芯寿命自动监测装置方案。对滤芯寿命监控系统的主体结构和控制器的结构进行设计分析,应用物联网技术,采用无线自组网模块进行通信。系统实现了对滤芯寿命自动监控功能,并通过物联网将上位机与各个监测节点相连接,实现范围监测功能。 相似文献
6.
针对高校毕业生就业状况监测存在的问题,分析了高校毕业生就业状况监测现状,设计了云计算技术下高校毕业生就业状况监测系统,对关键技术进行了实现,为解决当前监测系统中存在的问题提供了新思路。 相似文献
7.
基于虚拟仪器技术的分布式过电压在线监测系统 总被引：2，自引：0，他引：2
提出了一种基于虚拟仪器的分布式过电压在线监测系统.监测系统由数字测量仪器组成实现数据采集、分析处理、过电压诊断和报警等功能,其网络通信采用CORBA技术实现在异构环境下中心监控站和各个工控机之间的远程访问和监控.系统的仿真研究和现场测试均表明该系统能够基本实现电能质量各项指标的监测和分析功能,并具有实时性好,可靠性高,开发成本低等特点. 相似文献
8.
对南宁市琅东加压泵站自动控制监测系统改造的设计与实现过程进行论述,介绍系统的整体结构,详细说明系统采用的Modbus通讯网络、硬件设备和监控软件。该系统实现了对泵站运行现场的各项参数进行实时监测,在实际投运过程中取得了良好的效果。 相似文献
9.
随着工业化与信息化的不断融合,工业控制系统引入了大量IT技术,工控系统安全问题日趋严重。工控系统与IT系统存在本质性差异。通过对工控系统安全威胁进行详细分析,设计了工控系统异常监测安全事件智能分析架构,〖JP〗提出了工控系统安全审计方案。该系统能实现工控系统异常行为监测和安全事件智能分析,实现了安全可视化。 相似文献
10.
利用单片机控制技术、A／D转换技术及数字滤波技术,对风机故障诊断监测系统的软件部分进行了设计。系统实现了对信号时域指标的计算和实时在线监测,使系统的抗干扰能力和准确性等方面有了很大的提高,达到风机设备故障诊断监测的目的。 相似文献
11.
邱崇丙 《唐山师范学院学报》2014,(1):21-23
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。 相似文献
12.
Rachel Zupek 《海外英语》2007,(11):40-41
我们绝大部分人都同意一件事情——我们喜欢金钱。但是你对金钱的喜欢之情足够到让你创立一份事业么?.财富通常被人忽视,主要在于人们不能真正了 相似文献
13.
YANGShiguo 《重庆大学学报(英文版)》2004,3(1):86-88
The problem on the geometrc inequalities involving an n-dimensional simplex and its inscribed simplex is studied. Aninequality is established, which reveals that the difference between the squared circumradius of the n-dimensional simplex andthe squared distance between its circumcenter and barycenter times the squared circumradius of its inscribed simplex is not lessthan the 2(n-1)th power of n times its squared inradius, and is equal to when the simplex is regular and its inscribed siplex is atangent point one. Deduction from this inequality reaches a generalization of n-dimensional Euler inequality indicating that thecircumradius of the simplex is not less than the n-fold inradius. Another inequality is derived to present the relationship betweenthe circumradius of the n-dimensional simplex and the circumradius and inradius of its pedal simplex. 相似文献
14.
15.
GUO Bao-feng Xiao Da-wei 《重庆大学学报(英文版)》2005,4(3):129-133
Using virtual reality for interactive design gives a designer an intuitive vision of a design and allows the designer to achieve a viable, optimal solution in a timely manner. The article discusses the process of making the Virtual Reality System of the Humble Administrator＇s Garden. Translating building data to the Virtual Reality Modeling Language （VRML） is by far unsatisfactory. This creates a challenge for computer designers to do optimization to meet requirements. Five different approaches to optimize models have been presented in this paper. The other methods are to optimize VRML and to reduce the file size. This is done by keeping polygon counts to a minimum and by applying such techniques as object culling and level-ofdetail switching. 相似文献
16.
The awareness of individualism can be traced back to the period of American Revolution when the Declaration of Independence was produced.It expressed basic beliefs concerning freedom,equality,democracy,privacy and the relationship between people and government,which were exactly what the philosophy of individualism mostly dealt with at that time.This paper is to exploit the essence of individualism by analyzing the Declaration .The analysis enables us to reconsider its significance to the issue of America human rights and foreign policies. 相似文献
17.
李晓劲 《读与写:教育教学刊》2008,5(6)
Public speaking, as one kind of speech act, the speaker uses some pragmatic strategies, for example,the use of personal pronoun, in order to achieve effective communication. Speakers use the first personal pro-noun we and the second personal pronoun you conventionally, also there are some deviations in the use of person-al pronouns. However, theses kinds of uses have to be explained and understood in such a specific context. 相似文献
18.
宋少华 《读与写:教育教学刊》2008,5(5):3-5
This essay mainly studies the linguistic features of News English on stylistics.The study is made mainly on three aspects of News English.They are lexical features.sentence features and grammar features of News English.Through the study we find that News English,as a distinctive and new language.has its own lin-guistic features in words, sentences and grammar. 相似文献
19.
正Nong Luhuan had a wild dream when he was little.He wanted to become a cartoonist and publish books of his own.Now,the 22-year-old art design major at Sichuan Fine Art Institute has achieved his dream.His micro blog cartoon has more than 260,000 followers and he will publish his first book this week.农璐焕小时候有一个疯狂的梦想,他想成 相似文献
20.
正The hardest arithmetic to master is that which enables us to count our blessings.世界上最难的算术题是如何清点我们的祝福。According to legend,a young man while roaming the desert came across a spring of delicious crystal-clear water.The water was so sweet,he filled his leather canteen so he could bring some back to a tribal elder who had been his 相似文献