基于体感算法的新型蓝牙遥控器的设计

提出了一种具有体感控制功能的多功能遥控器的设计方案。遥控器通过蓝牙与主机通信,数字加速度传感器、数字陀螺仪和磁力计的数据通过体感算法处理后,实现对空中鼠标以及体感游戏的控制。在此基础上,遥控器还加入了键盘和语音传输功能。经测试证明,该方案是可行的。     

车载语音识别及控制系统的设计与实现

针对传统的封闭式手动操作的车载系统,设计了基于Android系统的车载语音识别与控制系统。该车载系统采用ARM架构完成硬件搭建,设计并实现了基于网络和LD3320语音芯片的在线离线多模态语音识别功能,并在此基础上实现了语音控制导航、蓝牙电话及音乐播放功能。该系统支持导航软件应用的自助升级和维护,打破了传统车载系统升级的垄断。实验结果表明,该多模态语音识别与控制车载系统成本低、效率高,功能强大、界面友好操作简便,真正意义上释放了驾驶员的双手,具有广阔的市场前景。     

WRAP THOR 2022-1在蓝牙车载电话中的应用

语音通信是蓝牙技术应用的一个重要方面,与音频传输应用相关的应用框架是蓝牙免提应用框架.当用户无法腾出手去接听电话时,就可以利用蓝牙的电话免提功能,进行无线免提语音控制拨打与接听电话,并遥控音量的大小.它是基于蓝牙串口应用框架的,通过串口仿真协议层来传递AT电话控制指令.本文首先介绍芬兰Bluegiga公司推出的蓝牙模块WRAP THOR 2022-1的结构和工作原理,然后给出一种嵌入式蓝牙车载免提电话系统的实现实例,包括系统硬件和协议栈软件的实现.     

蓝牙智能车载遥控器的设计

本文主要提出一种基于STC89C52单片机,结合蓝牙技术,通过蓝牙无线通信实现对车辆部分功能的遥控。整个系统分成遥控器部分和受控部分,其中遥控器部分主要由单片机及其外围电路模块、电源模块、蓝牙模块、按键及LCD模块组成,受控部分主要由单片机及其外围模块、电源模块、蓝牙模块及用指示灯模拟的车辆功能部分组成,本设计的主要工作原理为:首先系统上电后进行一系列的初始化,然后主从蓝牙部分配对连接,配对成功并建立连接后遥控器部分与受控部分可以进行无线通信,最后通过蓝牙无线通信可以实现遥控器对车辆部分功能的控制。本系统采用蓝牙无线通信技术,工作在2.4GHz免许可频段下,具有较强的保密性、安全性和抗干扰能力,此外蓝牙还具有较强的可拓展性和可移植性等优点。     

蓝牙芯片WRAP THOR 2022-1在蓝牙语音车载免提电话系统中的应用

介绍了芬兰BLUEGIGA公司推出的蓝牙芯片WRAPTHOR2022-1的结构、工作原理及其在无线语音车载免提电话系统中的应用。     

蓝牙无线耳机设计及VxWorks移植方法

蓝牙技术广泛应用于局域网络中各类数据及语音设备的无线传输。根据蓝牙耳机的协议栈原理描述蓝牙无线耳机的硬件电路设计和软件设计的实现过程;详细说明其系统内部传输音频数据的I2S总线的接口原理、读写时序和控制函数;按照蓝牙耳机应用规范中各层数据处理要求,给出嵌入式实时操作系统VxWorks在蓝牙芯片ZV4301上的部分程序移植,最后通过协议模型讲述语音网关与蓝牙耳机进行语音传输的具体过程。     

哈烧谍报

智能圆盘，蓝牙控制中心 可以通过蓝牙连接并操控手机、Mp3、遥控器等常见电器产品，一盘在手，操控无忧。     

面向蓝牙语音加密传输的波形码本设计

针对蓝牙语音信号加密后失去语音特征而不能通过语音信道传输的问题,建立蓝牙语音加密数据传输模型,提出一种面向蓝牙语音加密传输的波形码本生成算法。该算法以子载波调制生成初始调制码本,训练数据得到解调码本,通过设计末位淘汰机制的粒子对算法寻找最优码本。仿真分析表明该码本生成算法具有收敛速度快的优势,能够生成不同比特传输速率和符号错误率低的波形码本。实验结果表明,在蓝牙中使用该波形码本传输数据具有较低的符号错误率。     

2001年蓝牙技术将大放异彩

畅游在蓝牙技术的梦想中,你会发现蓝牙技术几乎无所不能。当你进行家庭装修时,不必为如何布线而烦恼,因为蓝牙技术的应用可以让你随心所欲地安排室内的家用电器;当你回到家时,不必找电视遥控器、空调遥控器、音响遥控器等,用手机或是车钥匙就能“尽在掌握”;当你准备开始新一天的工作时,蓝牙技术让你在家中就可以先行启动汽车,在临近工作地点时,就可以启动你的计算机、打印机。有了足够的带宽,剩下的只需要你的想像力……     

汽车电子潜力榜

车载电子产品 顺风耳：车载蓝牙 潜力指数： 定义：车载蓝牙是车内无线免提系统,利用蓝牙与手机配对后,车主在不接触手机甚至是双手不离方向盘的情况下开始进行通信。     

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。