基于IP技术的工业物联网发展概述

1工业物联网概述网络改变着人类的生产和生活方式,网络技术已经在商业、金融业引起了巨大革命,物联网技术将推动工业自动化进入新境界。ISO/IEC JTC1 SWG5物联网工作组对物联网的定义是:物联网是一个将物体、人、系统和信息资源与智能服务相互连接的基础设施,可以利用它来处理物理世界和虚拟世界的信息并作出反应。物联网能够实现物理的和虚拟的"物"的无缝整合。通过物联网技术"泛在感知"工业全流程、实施优化控制,已经成为企业提高设备可靠性和产品质量、降低人工成本与减少生产消耗、增强核心竞争力的主要手段,是降低自动化成本、提高自动化系     

一种新的物联网传感器数据融合方法

针对现有技术中各种异构网络或多系统之间的数据融合难、网络利用效率低下等问题,本文研究了一种新的物联网传感器数据融合方法,设计了基于物联网传感器数据融合系统.该系统包括物联网结构层、传感器输出信号的预处理部分和信号分析处理部分,采用ADuC812单片机实现了海量数据的处理,并通过多种无线通信技术进行数据传输,通过物联网应...     

Hadoop环境下分布式物联网设备状态分析处理系统

设备故障可能会引起严重的生产事故,对企业、社会和人身安全造成严重威胁.因此,对物联网设备状态分析并进行合理的处理具有重要意义.针对物联网设备数据量大且复杂的特性,本文提出了一种针对物联网设备的海量数据处理架构,同时结合Dask分布式计算框架,设计了基于Hadoop环境的分布式物联网设备状态分析处理系统.本系统主要包括数据服务、数据分析和数据存储3个模块,并通过合理的节点调度方案保证了算法的高效运行和分布式计算的稳定性.系统运行表明能有效的处理大批量数据并实时准确预测设备状态,满足工业智能制造过程中的实际应用.     

基于混合模型的物联网实时数据采集系统设计

针对物联网数据采集实时性较差,影响数据管理的问题,利用信息融合技术设计了物联网实时数据采集系统。系统硬件部分,选用RS485数据采集器,提升系统信息采集能力,选用SJT8008芯片增加通信信道,提升系统的信息传输能力。系统软件部分,设计数据采集模块、数据融合模块,可以快速找出数据融合位置,提高数据采集速率;设计存储数据库,可以有效缩短物联网数据查找时间,进而实现物联网数据的实时高效采集。系统测试表明,该系统的物联网数据采集速率更高,实时性更强,明显优于传统系统,具有较高的推广价值。     

基于AI+IOT的智慧家居系统

利用人工智能技术和深度学习算法,设计开发了基于AI+IOT的智慧家居系统。基于百度提供的免费的语音识别云平台,该系统使用ZigBee网络,对家居环境数据进行采集、分析,并通过物联网技术和人工智能技术实现远程语音控制各种家电的功能。基于深度学习,系统通过百度语音识别技术对自然语言进行语音识别,通过搭建系统编译环境成功融合了AI技术和IOT技术实现了具有语音控制功能的智能家居系统,致力于为人们提供更加便捷智能的生活。     

基于云计算的物联网数据挖掘系统分析

物联网是世界信息产业"第三次浪潮"下的产物,全球各个国家也将物联网的发展提升至国家战略的层面。现代大数据环境之下,物联网需要解决多个方面的技术问题。"云计算"具有规模庞大、可靠性高和扩展性良好的技术优势,满足物联网朝着智能化发展的现实需求。本文通过利用"云计算"在信息处理上的时效性及数据存储容量大等特点,改造相关算法,设计开发一种基于"云计算"的物联网数据挖掘系统,有效地提高信息处理的时效性和准确性。     

基于新型物联网的蚕室环境管理系统设计与应用

从江苏省养蚕、制种生产环境调控和物联网技术应用的现状出发,针对现有农业模式的弊端以及农业物联网控制环节的滞后性,设计一种基于深度学习的物联网蚕室环境管理系统。利用神经网络结合CNN深度学习算法对数据样本不断学习训练,除了实现远程智能控制、信息共享外,最重要的是不仅实现了对蚕桑环境因子的进一步精确整定,还提高了整个系统的快速响应能力以及鲁棒性。     

基于物联网技术下的数字化油气田设计与实现

数字化油气田建设是我国油气企业发展的方向,本文介绍了一种基于物联网数字化油气田系统,通过传感器、射频识别（RFID）、通信网络、云计算等新技术建立一套覆盖油气生产、处理等全过程的物联网系统,实现生产数据自动采集、关键流程连锁控制,工艺流程可视化展示、生产过程实时监测的综合信息平台,实现人与物理系统的“智能”整合,实现工业化与信息化的融合。     

面向MES的AVI系统的设计与实现

在MES系统中提出了一种基于PROFIBUS的AVI系统,以S7-300PLC控制器为硬件核心,采用西门子的MOBY无线射频技术,实现对数据的采集、分析、存储和实时跟踪反馈;并实现一种基于OPC技术完成PC机与西门子PLC的数据传输,设计基于CP5611通信卡的驱动程序解决MES和AVI之间的数据接口;通过实验测试,各项数据信息满足设计需求,该系统已经实现底层硬件和MES的深度融合,所组建的一套AVI系统跟MES系统一起已在一家车桥生产企业使用,提升企业生产效率。     

积分离散引导的物联网中离散系统差异数据融合

研究一种积分离散引导的物联网中离散系统差异数据融合。对物联网中离散型制造系统下各个物联网节点的差异数据进行融合处理是离散型制造系统需要解决的重要问题。在传统的离散型制造系统中,数据采用分布式处理方法,每个节点的数据做单独处理,所以无法融合所有数据的优点,达到较好的全局效率。提出一种积分离散引导的物联网中离散系统差异数据融合,即采用物联网技术将分布式系统下各个离散制造系统的终端数据进行统一收集和综合,然后采用积分离散引导的方法对获取的所有差异化数据进行处理,从而达到所有数据的有效融合。采用一组100节点的6类型数据进行实验,结果显示,采用积分离散引导的物联网中离散系统差异数据融合,数据被很好地融合起来,且数据的谱平均分布,所以算法具有很好的应用价值。     

Only connect: teaching, technology and telesis

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.     

European Community policy and the market

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.     

一种自适应子融合集成多分类器方法

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。     

Avoiding semantic and temporal gaps in developing software intensive systems

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.     

Designing economic np control charts: A programmed simulation approach

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.     

The development of robot art

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     

Explanation and prediction: an architecture for default and abductive reasoning

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.     

Three Process Perspectives: Organizations, Teams, and People

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.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。     

How do children do mathematics with LOGO?

Abstract  This paper considers some results of a study designed to investigate the kinds of mathematical activity undertaken by children (aged between 8 and 11) as they learned to program in LOGO. A model of learning modes is proposed, which attempts to describe the ways in which children used and acquired understanding of the programming/mathematical concepts involved. The remainder of the paper is concerned with discussing the validity and limitations of the model, and its implications for further research and curriculum development.