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飞机状态监测无线传感器网络系统 总被引:1,自引:1,他引:0
ZigBee技术与无线传感器网络完美地结合在一起,成为无线传感器网络中无线通信应用的首选技术之一,具有低功耗、低成本、网络容量大、灵活安全和抗干扰能力强等特点.用ZigBee技术研制的飞机状态监测无线传感器网络系统布线少,可减少整个系统的重量和成本,增加系统的灵活性,还可快速的布局和监测数据,实时地传输动态信息,可以使飞机状态监测和故障诊断技术达到一个新水平,有力推动航空技术的发展.基于这一应用要求,将新型传感器和无线传感器网络技术相结合,设计了用于飞机状态监测的无线传感器网络系统方案及其相关节点,实验实现了系统的基本功能,初步验证了此飞机状态监测系统的可行性. 相似文献
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为了解决温室环境监测系统中遇到拓扑结构固定节点延展性差等问题,提出了基于ZigBee无线传感器网络的温室监测系统设计与实现方法,构建了基于ZigBee协议的无线监测网络,给出了网络中节点硬件和软件的设计方案,详细论述了ZigBee协调器的组网过程。测试结果表明,该系统具有结构简单、节点灵活功耗低等优点,实现了在无线环境下对温室中温湿度的有效监测。 相似文献
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基于ZigBee无线传感器网络的煤矿监测系统设计 总被引:3,自引:0,他引:3
文章介绍了基于ZigBee无线传感器网络的煤矿监测系统的结构组成、适用于煤矿井巷环境的ZigBee无线传感器网络拓扑结构及网络节点的构成、软硬件设计等。凭借基于ZigBee技术的无线传感器网络节点可移动、组网快速简单、成本低、网络易维护等特点,该监测系统有着很大的推广应用价值。 相似文献
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基于物联网的智能家居远程无线监控系统设计 总被引:1,自引:0,他引:1
基于ARM920T内核的S3C2440、嵌入式Web服务、QT技术、无线组网技术,设计了智能家居监控系统,系统由智能家居主机、ZigBee/Wi-Fi无线传感控制网络、智能家居客户端软件组成。系统完成了智能家居主机的硬件和软件设计:在ARM平台上移植嵌入式Linux操作系统;使用gSOAP工具建立嵌入式Web服务;配置USB转串口驱动、无线Wi-Fi网卡驱动;组建ZigBee无线传感控制网络,完成对协调器节点以及终端节点的程序设计,制定了数据通信协议;使用QT技术设计客户端程序。最后,重点测试ZigBee网络的建立、终端节点入网和传感器节点数据传输。测试结果表明网络中的传感器节点能够将检测的信息传送到协调器中,智能家居客户端软件能够通过智能家居主机完成对家居环境的远程监测和控制。 相似文献
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应用于天然气管网安全监测的无线传感器网络节点设计与实现 总被引:1,自引:0,他引:1
利用无线传感器网络技术可对城市天然气管网安全进行在线、实时监测.结合具体应用需求和特点,设计了一种支持IEEE802.15.4和ZigBee协议的新型无线传感器网络节点.利用该节点,可以识别施工或其它外力对天然气管道的撞击破坏,检测管道附近泄漏的天然气浓度及异常温度等不安全因素.在集成微处理器和射频收发模块的"片上系统"芯片的基础上,实现了射频通信、数据采集和电源等模块的硬件电路设计,给出了节点间组网及数据传输的软件机制.实验结果表明,该节点具有功耗低、通信可靠等特点,可满足天然气管道安全监测的实际需要. 相似文献
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WANG Su-hong 《数字社区&智能家居》2008,(33)
无线传感器网络是由部署在监测区域内大量的廉价微型传感器结点组成,具有传感器节点密度高,网络拓扑变化频繁,以及节点的功率、计算能力和数据存储能力有限等特点。该文介绍了ZigBee网络与GSM/GPRS网络相结合实现远程监测的无线传感器网络的软件与硬件总体设计方法。 相似文献
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无线传感器网络能够实时监测、感知和采集网络分布区域内的各种环境或监测对象的信息,但是无线传感器网络节点能耗高、容易失效。针对这一问题,提出一种基于PSoC的无线传感器网络系统设计方案,采用CYPRESS公司PSoC芯片(可编程片上系统)CY8C29466作为节点处理器,实时采集网络各节点的电池电量,引入抗干扰能力较强的Wire-lessUSB通信技术构建无线网络,提高无线数据传输的可靠性,以车位锁管理系统设计为例,详细阐述了该传感器网络系统的硬件和软件设计。实际应用结果表明,该方案充分利用PSoC芯片内部的模拟资源和数字资源,缩小了体积,缩短开发周期,且能有效地降低系统的能耗,检测网络各节点当前的电量,通知管理人员及时更换电池。 相似文献
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S. Shaw 《Journal of Computer Assisted Learning》1993,9(2):93-99
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
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European Community policy and the market 总被引:1,自引:0,他引:1
C. Lloyd 《Journal of Computer Assisted Learning》1993,9(2):86-91
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
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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
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张涛 《计算机测量与控制》2015,23(1):86-89
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
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Wayne O’Brien Author Vitae 《Journal of Systems and Software》2008,81(11):1997-2013
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
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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
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潘丽 《自动化与仪器仪表》2014,(7):80-82
自然界的绝大部分信号都是以模拟的形式存在,因此模拟信号的采集转换存储在数字时代十分关键。文章讨论了在雷达信号处理领域基于AD9626的AD采集存储卡的设计原理、硬件结构和程序设计与芯片配置等问题,为今后相关领域的研究提供了可参考的方案。 相似文献
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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
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Jacob Palme 《Software》1979,9(9):741-747
The COM teleconferencing system was designed to be easy to use for both beginners and people with much computer experience. A number of design choices in organizing the human-computer interface were considered very carefully. These design problems are not unique for teleconferencing applications, but will appear in many other developments of human-computer interfaces for non-computer specialists. This report discusses naming conventions, menu format, user commands, help facility and the treatment of ‘type ahead’ from the users. 相似文献