采用ECharts可视化技术实现的数据体系监控系统

针对如何将大量数据以可视化的形式呈现在用户面前,从而能够更加清晰的传达信息的问题,采用了ECharts可视化技术实现数据体系监控系统.详细描述了该数据体系监控系统的系统设计,并讲述了该系统的具体实现,从而说明了使用ECharts可视化技术以图形化的方式对数据信息进行展示的起着十分重要的作用.     

基于物联网的校园疫情监控系统设计与实现

为减少人员聚集,实现校园疫情防控智能化,设计了一款基于物联网的校园疫情监控系统并予以实现,包括人流量数据采集模块、网络疫情数据采集模块、校园物联网和数据可视化模块,可快速组建物联网平台并实现本地数据和云端数据的同步监控。系统使用STM32F429作为主控芯片,搭配HC-SR501人体红外感应模块、LoRa节点模块,采用双向检测算法实时采集校园内的人流量数据,运用Python网络爬虫实时获取网络疫情数据,并搭建了以LoRa无线通信技术为基础的校园物联网,实现与网络服务器之间的数据传输。针对所得数据,通过软件驱动程序进行清洗并存放至数据库,供人机交互界面调用。对系统功能进行测试后,结果表明前端采集的数据可以实现在现场LCD终端和云端HTML终端的展示,为校园师生提供有效的人流量数据和疫情数据。     

电器试验设备远程监控系统设计与实现

针对现有电器试验设备监控系统的一些缺陷，设计了一种基于Web的远程监控系统，用于实时监控设备运行状况和试验数据。介绍了系统的总体结构和系统功能；根据系统的功能需求设计了数据库，实现了系统对不同类型、不同地点的试验设备的通用化；利用Redis缓存降低了磁盘I/O，提高了系统的响应速度；在保证安全的情况下，实现了对试验设备的远程启停控制；通过WebSocket技术和Redis订阅发布模式，实现了由设备端到客户端的高效数据推送；利用ECharts框架实现了静态和动态试验结果数据的可视化。经测试，系统运行效果符合预期，证明了以上方法的可行性。     

基于SSM框架的社区环境数据可视化系统

为了更高效地对社区的环境数据进行管理和直观的展示,提高社区管理系统的使用效率,该文以PM2.5、O3、SO2等社区的环境数据为对象,基于Spring,SpringMVC和Mybatis框架设计了社区环境数据可视化管理系统.前端以Bootstrap为框架,ECharts作为可视化组件实现系统的主要功能.结果表明,该数据可视化系统具有性能良好、数据展示直观、代码复用率高的特性.     

ECharts在数据可视化中的应用

目前人们在各个领域面对海量数据,需要借助数据可视化技术把海量数据转换为动态图像或图形,并利用交互手段帮助人们进行理解数据,以便完成进一步的数据分析。在教师专业发展领域中鲜有聚焦数据可视化的研究。本文按照可视化的基本流程,探索了基于ECharts平台的可视化开发方法,以教师专业发展数据的可视化系统为例,重点叙述了ECharts图表在客户端的构建方法、交互组件在可视化中的应用,展示了通过Ajax技术实现动态数据绘制的过程。     

基于Bootstrap的数据可视化展示技术

随着大数据技术的不断发展,数据可视化展示的运用越来越广泛.各种Web前端框架和技术融入到数据可视化技术中,使大量复杂的数据经过数据处理之后,通过数据可视化技术展示给用户,辅助用户进行决策分析.通过Web前端技术中应用比较广泛的Bootstrap框架、jQuery与ECharts相结合,研究数据可视化平台的构建与实现.     

新冠疫情数据可视化系统的设计与实现

为了更直观地了解新冠疫情的流行趋势,本文开发出了一款新冠疫情可视化系统.系统与腾讯新闻的疫情数据接口,采用Vue、Echarts、Node.js以及其它建站工具渲染新冠疫情数据可视化系统的后台搭建和前端页面.该系统采用多种图表的形式来展示国内疫情的发展趋势,为民众对于新冠疫情的了解提供帮助.     

基于Spring Boot的学生信息可视化系统设计与实现

随着信息化的不断发展,高校新生数据逐年递增,传统数据统计已经不能满足师生对数据的使用需求,因此设计了一个基于Spring Boot、ECharts的学生信息可视化系统。该系统可以将获得的多维度数据以可视化的形式展示,挖掘数据背后的价值,使信息更容易理解和传递。     

第三方软件与监控系统远程数据交互的应用

监控系统已经广泛运用在高效稳定的工业化生产过程中.通过对当前使用的监控系统的调研,发现相当一部分非网络版监控系统的使用人群仅仅会一些基本操作,却无法对系统进行维护.为了能够让系统工程师在远程进行系统维护,设计了一款通用的C/S构架软件,实现了多客户端与监控系统的远程实时数据交互.工程师足不出户就能完成监控系统的参数分析、实时调整、优化等工作,在实际应用中节约了大量的时间和资金.     

基于DDS和WPF技术的试飞实时监控系统设计

针对以服务为中心的客户端服务器(C/S)架构监控模式存在着数据融合困难、传输协议单一、扩展灵活性差等不足,将数据分发服务(DDS)技术引入到试飞实时监控系统中,结合WPF图形引擎技术形成了一整套解决方案。在完全兼容当前架构规范的前提下,采用DDS技术作为数据传输中间件,有效提高了试飞监控系统的实时性,加强了多源数据融合粒度,降低了试验资源的集成难度;采用WPF图形引擎技术构建实时监控可视化编辑平台,最终实现了空天地综合监控环境下多源数据接收、处理、分发以及可视化展示等关键技术。此方案已经在飞行试验地面实时监控中得到了成功应用。     

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。     

煤矿井下安全监控分站的设计及其仿真实现

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.     

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     

View-based model-driven architecture for enhancing maintainability of data access services

In modern service-oriented architectures, database access is done by a special type of services, the so-called data access services (DAS). Though, particularly in data-intensive applications, using and developing DAS are very common today, the link between the DAS and their implementation, e.g. a layer of data access objects (DAOs) encapsulating the database queries, still is not sufficiently elaborated, yet. As a result, as the number of DAS grows, finding the desired DAS for reuse and/or associated documentation can become an impossible task. In this paper we focus on bridging this gap between the DAS and their implementation by presenting a view-based, model-driven data access architecture (VMDA) managing models of the DAS, DAOs and database queries in a queryable manner. Our models support tailored views of different stakeholders and are scalable with all types of DAS implementations. In this paper we show that our view-based and model driven architecture approach can enhance software development productivity and maintainability by improving DAS documentation. Moreover, our VMDA opens a wide range of applications such as evaluating DAS usage for DAS performance optimization. Furthermore, we provide tool support and illustrate the applicability of our VMDA in a large-scale case study. Finally, we quantitatively prove that our approach performs with acceptable response times.     

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.     

A pragmatic multi-method investigation of discrepant technological events: Coping,attributions, and ‘accidental’ learning

Discrepant technological events or situations that entail a problem, a misunderstanding or a difficulty with the Information Technology (IT) being employed, are common in the workplace, and can lead to frustration and avoidance behaviors. Little is known, however, about how individuals cope with these events. This paper examines these events by using a multi-method pragmatic approach informed by coping theory. The results of two studies – a critical incident study and an experiment – serve to build and test, respectively, a theoretical model that posits that individuals use a variety of strategies when dealing with these events: they experience negative emotions, make external attributions, and adopt engagement coping strategies directed at solving the event, eventually switching to a disengagement coping strategy when they feel they have no control over the situation. Furthermore, users’ efforts may result in ‘accidental’ learning as they try to overcome the discrepant IT events through engagement coping. The paper ends with a discussion of the results in light of existing literature, future opportunities for research, and implications for practice.