RFID及条形码技术在工业炸药中的应用

本文针对工业炸药在全生命周期内(包括生产、存储、运输、销售过程)存在难以实时获取数据、难以监控动态流程的问题,采用无线射频RFID及条形码技术实现对工业炸药的信息采集,并基于采集的信息对工业炸药进行识踪智能管控,构建工业炸药实时监控系统。     

无线镀膜玻璃色差数据实时监测系统的设计

针对玻璃生产线布线困难、电磁干扰强、数据处理效率低的状况,设计了无线镀膜玻璃色差数据实时监测系统;介绍了无线射频收发芯片nRF2401AG的原理及特点,采用了无线通信技术和数据库技术,阐述了将Visual C++6.0作为开发平台,镀膜玻璃色差数据无线收发、实时监测、实时存储、动态显示等实现过程;经实际验证:该系统无线通信稳定可靠、数据处理效率高;满足了工程实际应用需求,具有很好的实用性和推广价值。     

面向PCB装配过程跟踪的RFID中间件

针对PCB装配生产跟踪不实时、产品追溯效率低的问题,引入无线射频识别（RFID）技术标识物料和产品,提出基于RFID的PCB生产跟踪。研究RFID中间件技术,结合PCB装配的特点确定中间件的功能模块及各模块间交互的信息,设计各模块的处理流程。实验结果表明,该RFID中间件提高了数据采集能力,为PCB生产过程跟踪奠定了基础。     

易损/危险品物流监测智能微系统

一种基于数据采集、射频识别的信息采集系统,可以采集存储物流过程中超过阈值的振动、湿度以及温度,并记录对应的时间,然后通过无线通信向外发送记录的数据。本系统由三部分组成,包括基于加速度传感器、温/湿度传感器的数据采集模块、基于RFID的无线通信模块及报警模块。本系统不仅可为易损邮寄物品保驾护航,还可对流通中的危险品状态进行实时监测,能应用于多种恶劣环境,实时将报警消息发送至运输人员手中,及时发现问题,提高运输效率,有效地降低运输货品的破损率和危险品的事故率。     

汽车油耗实时监控系统的关键技术

汽车油料监控系统可方便地对汽车油料使用过程进行实时监控。该系统从设计上可分为油量数据采集器、无线射频抄表器和PC机软件三个部分。结合了数据采集、数据存储、无线射频抄表三个关键技术,实现了实时记录汽车油耗,通过无线射频方式抄表并上传至PC机,由配套业务管理软件分析数据并进行绩效管理。     

基于ZigBee技术的冷藏车监测系统设计与实现

为保证冷藏车在运输过程中,能够实时了解车内果蔬农产品的新鲜程度,为消费者提供更加新鲜的产品,本着提高效率和尽量节省成本的出发点,提出了基于无线ZigBee技术,对冷藏车辆内的温度和门开关状态实时监控的设计方案,包括软硬件的设计与实现.     

群养母猪饮水行为监测无线传感器网络节点设计

针对群养母猪个体饮水行为监测,研发了一种主要由STM32微控制器、CC1101无线射频模块和RFID读写器模块组成的无线传感器网络节点。采用RFID技术实现对饮水母猪个体的识别,利用流量计实时记录母猪饮水量。通过无线射频模块组成星型网络并简化时间同步问题,将采集的母猪个体信息发送至远程监控中心,实现母猪个体饮水行为的自动化监测。实验结果表明:节点对饮水母猪个体识别正确率达到100%,能够准确、实时地记录其饮水量。     

基于无线传输的变压器铁心接地监测系统的设计

在电力变压器运行过程中,为了预防因铁心多点接地导致接地电流超标而造成的铁心过热和烧毁故障,设计了一种基于无线数据传输技术的变压器铁心接地电流在线监测系统;该系统能够实现对变压器铁心接地电流的实时或定时监测和历史数据的存储,能够在检测到接地线电流超过国家标准后发出报警信号,同时根据电流的大小实现限流电阻的自动投切,最终将接地电流限制在规程要求的范围之内;应用nRF905无线射频收发芯片设计了无线通讯模块,实现了下位机与上位机的无线数据传输。     

一种基于EFM32LGF330F256的无线LoRa仪表设计方案

本方案介绍一种基于无线LoRa技术的低成本、低功耗的无线仪表实现方案。该方案设计充分利用硬件设计资源,实现了压力、温度的高精度采集及无线传输,可广泛应用在生产过程中各种液体和气体的介质压力、温度测量。在液晶屏上进行实时显示的同时,该方案将测量值通过LoRa技术上传至网关,从而实现对系统的远程实时监测。     

基于超高频射频技术的井下物资运输管理系统

针对成庄矿轨道机车运输系统因缺乏有效的监控手段而导致的机车运输效率低、货物流向不明的问题,指出了设计井下物资运输管理系统的必要性;分析了有源射频识别技术及高频无源射频识别技术的优缺点,提出了一种基于超高频射频技术的井下物资运输管理系统。该系统由无源抗金属射频标签、超高频固定式射频读写器、手持式射频读写器和物资运输管理软件组成,可实现对井下机车及运输物资的识别定位及远程监测功能。实际应用表明,该系统有效提高了矿井辅助运输系统的工作效率。     

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.     

基于QTE的蒙古文显示机制研究与实现

蒙古语言是中国蒙古族使用的通用语言,由于蒙古文区别于其他文字的书写方式和其自身变形机制等特点,在很多通用的文字处理引擎中都不被支持。在嵌入式产品开发与应用领域中Linux加QTE已经成为流行方式。该文给出了一种在QTE环境上实现基于标准Unicode的蒙古文点阵显示和变形算法, 并自定义了支持蒙古文的QTE组件,扩展了QTE功能,为在Linux加QTE方式的嵌入式体系结构中处理蒙古文提供了一种解决方法。     

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.     

基于AD9626的模拟信号采集存储卡设计

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。     

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     

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.     

A human-computer interface for non-computer specialists

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.