基于ADS1293的穿戴式心电检测装置设计与实现

通过对穿戴式心电监护设备与低功耗技术的研究,设计了一款穿戴式心电检测装置。该装置将心电监护设备与背心服饰相结合,心电监护设备采用低功耗、高集成度的模拟前端芯片ADS1293与BLE蓝牙4.0低功耗无线模块进行心电信号的采集与传输,并结合低功耗MCU与电源管理模块可有效地降低系统功耗,然后通过Matlab GUI进行显示分析。通过实验测试验证,本装置体积小、功耗低、精度高,可在静息、行走和慢跑状态下长时间准确地采集心电信号,具有较高的可靠性、准确性和穿戴舒适性,可用于心脏疾病的远程监护与早期预警。     

BLE Mesh组网的可穿戴设备低功耗研究

针对目前可穿戴式设备功耗高的问题,本文进行了基于BLE Mesh组网的可穿戴设备低功耗的研究.以可穿戴单兵冲击波损伤测评系统为例,设计了一款基于Mesh组网的单兵冲击波损伤测评系统,该系统在原有系统的基础上增加了一个蓝牙组网.由于可穿戴设备采用纽扣电池供电,为了保证该系统的功耗不能有大幅度的增加,本文采用泛洪算法和低功...     

OLED显示技术在智能仪表上的应用

为适应显示技术的发展,采用了OLED显示屏作为智能仪表的显示终端。本文介绍了OLED显示屏的驱动方式,并对低功耗MSP430F1611芯片做了简单的说明。重点阐述了OLED驱动芯片SSD0323和单片机的接口电路以及低功耗情况下系统的供电方法,并给出了相应的软件流程图。该设计成功地在低功耗条件下驱动显示屏,通过就地组态,可同时进行多参数的显示。     

有机发光显示屏（OLED）的应用前景与发展

有机发光显示屏(OLED)是目前国际上最新开发的平板显示器之一,随着OLED的研究,发展和不断成熟,它得到越来越广泛的应用。有机发光显示屏(OLED)具有十大优点: 超薄:厚度仅有0.2-2mm,可以用柔性透明塑料片制成可弯曲显示屏; 亮度高:达100cd/m~2以上;实验室亮度可达上万cd/m~2 小功耗:由发光原理所决定,驱动电流很小,功耗低的多;     

基于C8051F的OLED控制电路的设计

设计了一种有机电致发光显示器的控制电路,可用于128×64的单色OLED点阵显示屏.结合OLED显示屏特性和驱动芯片SSD1303的功能特性,该系统实现了OLED显示屏的文字和图片的动静态显示.并提出了一种相时简单的软件实现显示的方法,和通过字模提取软件提取所需显示代码的方法.     

基于穿戴式心电信号监测系统设计

应对当前心电信号(ECG)监测系统的不足,设计了一种基于穿戴式心电信号监测系统,系统架构由AD8232生物芯片、超低功耗微控制器MSP430FR5738以及Micro-SD卡组成.详细介绍了系统软硬件的具体设计,并提出了一种动态双阈值的实时心率提取算法.通过对于本系统的功耗测试与实时心率算法的验证,得出本系统具备体积小、低功耗等穿戴式设备的优越性.     

手持设备中的无源OLED显示供电方案

分析了目前 OLED 在便携式设备中的功耗问题以及采用 Intersil 的 ISL97702器件设计 OLED 显示的供电方案,该方案延长了便携式电子设备系统的工作时间。     

基于智能传感器的新型高度与方向测量仪

提出了一种适合野外使用的便携式定向与海拔高度及温度测量的手持解决方案,该手持测量仪可以精确测量方向角、温度以及所在地的气压值进而获得海拔高度值,并采用OLED显示器数字显示.该方案在硬件及软件中采取诸多降低功耗、提高精度的措施包括采用超低功耗CPU以及高精度低功耗的智能传感器,软件流程采用中断方式等.另外采取温度补偿以及基于椭圆假设的磁传感器通道不一致性补偿等误差修正算法,使得该方案具有重量轻、功耗低、精度高、成本低等优点.     

基于STM32的健康一体机控制系统的设计

设计与实现了一种基于STM32芯片、用于居家环境下的健康一体机控制系统.该系统由电源管理模块、蓝牙模块、SD卡模块、OLED显示模块等几部分组成,可以用于控制与处理多生理参数模块采集到的心电、血氧饱和浓度、血压、脉搏率、呼吸率、体温等人体生理信息数据,并且可以对数据解析进行OLED屏显示以及通过蓝牙或串口发送给外界显示设备进行显示.系统利用模块化设计理念,可以适应不同多生理参数采集模块,具有多功能、扩展性能好、可移植性高等特点.同时,系统利用OLED屏进行显示,区别于传统的医用大型设备,有效地减小了设备体积,降低了设备使用功耗,便于居家环境下使用.     

基于Node.js的BLE可穿戴医疗设备管理中间件研究与实现

为了解决可穿戴医疗设备在通用计算平台下的通信与管理问题,更好地在智能病房系统中支持对病患的生命体征监测,设计基于Node.js的低功耗蓝牙BLE(Bluetooth Low Energy)可穿戴医疗设备管理中间件,实现对BLE可穿戴医疗设备的设备连接、操作控制、数据处理等管理功能。同时还实现多设备的并发控制,满足医疗场景下多设备协同监测的需求。未来,各类可穿戴医疗设备借助于该系统可便捷地接入到智能病房系统中,进一步扩展可穿戴医疗设备在智能化医疗服务中的应用。     

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。     

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。     

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。