基于蓝牙技术的粉尘检测器的设计

文中以新华龙公司的C8051F020为主控芯片和第一代蓝牙模块芯片BCM-05为通信模块,设计一个蓝牙空气粉尘检测器,使之与蓝牙接入设备搭建一套用于工业控制领域的的空气粉尘检测系统。文章给出了该蓝牙粉尘检测器的硬件设计和该系统的软件框架。硬件设计主要包括各部分电路介绍,软件框架将给出粉尘监测器与蓝牙接入设备的通信流程及相关程序。     

基于通用蓝牙模块的多路传感器数据传输系统

为解决在某些恶劣环境下工业现场设备布线难的问题,本系统设计了一种以MSP430F149为控制芯片和通用蓝牙芯片GC-02为传输介质的多路传感器数据传输系统.本设计由基于蓝牙模块的数据传输设备和蓝牙接入设备搭建了一套用于工业控制领域的多路传感器数据传输系统,给出了该蓝牙数据传输系统具体的硬件和软件设计,并分析验证了实验结果.     

具有隐秘通话功能的蓝牙车载系统设计

提出一种新颖的蓝牙车载方案,改变了传统的蓝牙车载单一连接的模式。在免提协议栈(Hand~Free Profile)的基础之上,增加了蓝牙耳机、蓝牙手机和蓝牙车载设备间的自由切换等功能,同时不影响与原有应用规范的通用性。同时,文章对该设计方案的设计思想和关键技术进行了详细分析,给出了基于CSR公司蓝牙芯片的开发思路,以期使读者对蓝牙应用及嵌入式产品开发有进一步的了解。     

基于蓝牙通用模块的多路传感器数据传输系统设计

为解决在某些恶劣环境下工业现场设备布线难的问题,本设计提出一种以MSP430F149为控制芯片和通用蓝牙芯片GC-02为传输介质的多路传感器数据传输系统。本设计由基于蓝牙模块的数据传输设备和蓝牙接入设备搭建了一套用于工业控制领域的多路传感器蓝牙数据传输系统。本设计给出了该蓝牙数据传输系统具体的硬件和软件设计,并分析验证了实验结果。     

基于蓝牙技术的DLP投影系统设计与实现

本文设计实现了一个基于蓝牙技术的DLP投影系统,DLP投影机使用DDP2000主控制器及DMD器件,投影机中的蓝牙模块采用BlueCore3蓝牙芯片,在JavaTM ME平台上设计的控制器程序可以兼容绝大多数蓝牙手机,使蓝牙手机成为DLP投影机的无线控制器,方便了DLP投影系统的使用,充分发挥了DLP投影系统便携移动的特点。     

蓝牙技术的安全性

１概论蓝牙技术基于芯片 ,提供短距离范围的无线跳频通信。它有很低的电源要求 ,并且可以被嵌入到任何数字设备之中。具有蓝牙芯片的数字设备 ,比如便携计算机、手机、ＰＤＡ ,可以通过蓝牙移动网络进行通信。几年内 ,蓝牙将会出现在电视机、Ｈｉ-Ｆｉｓ、ＶＣＲ和微波炉等设备之中。蓝牙采用的无线跳频技术使人们误认为蓝牙的安全机制已经解决。可是实际上 ,无线跳频技术对于窃听者和截取者不是一个技术障碍。目前的蓝牙芯片和设备并不具备数据的保密、数据的完整性和用户身份认证等安全措施。同其他无线通信网络一样 ,蓝牙网络也是一个开…     

抗蓝牙干扰“北斗”射频芯片的设计

为解决蓝牙设备对"北斗"卫星无线测定服务(RDSS)的干扰问题,设计了一款"北斗"射频芯片并流片,重点从系统架构、高线性模块电路设计两个方面实现。实测结果表明,该芯片在蓝牙环境下能够很好工作,整机性能不会下降。该芯片的推出将解决长期困扰RDSS接收机的蓝牙干扰以及未来4G移动网络的干扰问题,促进"北斗"的广泛应用。     

基于CC2540的超低功耗蓝牙模块的设计

对由概念走向商用化的穿戴式智能设备而言,超低功耗蓝牙模块成为其不可缺少的一部分.以TI公司CC2540蓝牙低功耗芯片为核心器件,开发了一款超低功耗蓝牙模块.对该超低功耗蓝牙模块系统电路的各部分组成进行了详细介绍,并从蓝牙模块电源电流和信号完整性两个角度对模块低功耗的实现进行了分析,最后通过与移动终端通信的应用示例验证了该蓝牙模块的可行性.     

基于Android系统的蓝牙便携式血脂仪的设计

蓝牙以其很强的灵活性、操作方便、成本低等优点,在很多领域得到应用.本文介绍了一种采用蓝牙技术的便携式嵌入式血脂仪,该仪器具有蓝牙无线通信功能.数据采集模块使用MSP430作为主控制芯片,增加了蓝牙传输模块,将采集到的数据发送至终端.终端接收模块使用ARM 11为内核的S3C6410芯片,建立了基于Android智能系统的数据接收和分析终端.智能终端利用Android蓝牙的API开发类,对终端蓝牙实现打开蓝牙、搜索附近蓝牙设备等基本操作,再利用Socket连接,实现数据传输.最后利用Eclipse开发工具,完成Android系统的上层应用的开发.     

具有语音合成的车载蓝牙免提系统没计与实现

针对目前车载蓝牙免提系统不能播报人名和播放短消息内容,致使驾驶员必须操作手机所导致的行车安全问题,设计了具有语音合成功能的车载蓝牙免提方案.该方案采用了XF-S3011语音合成芯片、GOC-MD-102蓝牙模块和LPC2138 ARM7主控芯片,为降低系统功耗进行了专门设计,并嵌入了μC/OS Ⅱ操作系统.结果表明,该系统不仅实现了播报人名和播放短消息内容的功能,而且运行稳定可靠,功耗低.     

一种实用的蓝牙数控系统实时数据传输技术

蓝牙是一种短距离无线通信技术,用于代替数字设备和计算机外设间的电缆连接以及实现数字设备间的无线网络,在通信、网络、芯片、软件等,甚至消费类电器和汽车制造等方面得到了广泛的应用。但是在工业控制领域的应用还非常有限。详细阐述了蓝牙无线技术在实时数据传输系统中的应用,对蓝牙的特点及关键技术进行了理论研究,并最终实现了与控制系统间的无线实时数据传输。实验结果表明蓝牙无线传输系统能够正确、稳定地实现与数控机床的无线数据传输,而不会对机床运行产生任何干扰。     

Analyzing the Secure Simple Pairing in Bluetooth v4.0

This paper analyzes the security of Bluetooth v4.0’s Secure Simple Pairing (SSP) protocol, for both the Bluetooth Basic Rate/Enhanced Data Rate (BR/EDR) and Bluetooth Low Energy (LE) operational modes. Bluetooth v4.0 is the latest version of a wireless communication standard for low-speed and low-range data transfer among devices in a human’s PAN. It allows increased network mobility among devices such as headsets, PDAs, wireless keyboards and mice. A pairing process is initiated when two devices desire to communicate, and this pairing needs to correctly authenticate devices so that a secret link key is established for secure communication. What is interesting is that device authentication relies on humans to communicate verification information between devices via a human-aided out-of-band channel. Bluetooth v4.0’s SSP protocol is designed to offer security against passive eavesdropping and man-in-the-middle (MitM) attacks. We conduct the first known detailed analysis of SSP for all its MitM-secure models. We highlight some issues related to exchange of public keys and use of the passkey in its models and discuss how to treat them properly.     

蓝牙技术纵横谈

蓝牙技术是一种低成本的短程无线传输标准，它提供了无线通信网络模式。介绍蓝牙技术的组成和特点，并且分析它的发展趋势。同时也介绍了蓝牙技术所面临的问题。     

Energy-aware on-demand scatternet formation and routing for Bluetooth-based wireless sensor networks

Bluetooth is a promising short-range wireless communication technology with the characteristics of interference resilience and power efficiency, both desirable for wireless sensor networks. The new Intel Mote sensor devices have Bluetooth technology incorporated as the standard wireless communications interface. When using Bluetooth in applications where multihop routing is required, groups of Bluetooth piconets combine together to form a scatternet. However, most of the existing scatternet formation protocols are designed to facilitate communications between any two pairs of devices, regardless of the actual traffic demand pattern. For wireless sensor network applications with low-duty-cycle traffic patterns, an on-demand scatternet formation protocol can achieve significant power saving by avoiding unnecessary network connectivity. To that end, we introduce an on-demand scatternet and route formation protocol designed specifically for Bluetooth-based wireless sensor networks. Our protocol builds a scatternet on demand, and is able to cope with multiple sources initiating traffic simultaneously. In addition, our energy-aware forwarding nodes selection scheme is based on local information only, and results in more uniform network resource utilization and improved network lifetime. Simulation results show that our protocol can provide scatternet formation with reasonable delay and good load balance, which results in prolonged network lifetime for Bluetooth-based wireless sensor networks.     

蓝牙Ad-hoc网络安全性分析研究

随着社会信息化进程的加快,蓝牙作为一种低成本、短距离的无线连接开放性技术标准,应用越来越广泛。文中分析了蓝牙Ad—hoc网络的安全机制及潜在的安全问题,同时对蓝牙Ad—hoc网络中所采用的安全策略进行了深入的研究和探讨,以期对蓝牙Ad-hoc网络通信系统中安全技术的发展方向提供借鉴。     

基于蓝牙技术的嵌入式网络接入点设计与实现

蓝牙技术作为一种短距离、低成本的无线通信技术标准,具有低功耗和稳定性强的特点,已广泛应用于各类手持移动设备中。本文阐述了一种将移动或固定数据终端设备通过无线蓝牙技术在短距离内实现无线接入局域网或Internet的嵌入式网络接入点(NAP)设计。     

蓝牙安全研究

蓝牙技术作为一种近距离无线通信的技术,已被许多国家和企业支持和认可。分析了蓝牙设备和蓝牙网络的安全机制及亟待解决的问题,并给出了具体的加密解决方案。     

Distributed topology construction of Bluetooth wireless personal area networks

Bluetooth, a wireless technology based on a frequency-hopping physical layer, enables portable devices to form short-range wireless ad hoc networks. Bluetooth hosts are not able to communicate unless they have previously discovered each other through synchronization of their timing and frequency-hopping patterns. Thus, even if all nodes are within proximity of each other, only those nodes which are synchronized with the transmitter can hear the transmission. To support any-to-any communication, nodes must be synchronized so that the pairs of nodes, which can communicate with each other, form a connected graph. Using Bluetooth as an example, we first provide deeper insights into the issue of link establishment in frequency-hopping wireless systems. We then introduce an asynchronous distributed protocol that begins with nodes having no knowledge of their surroundings and terminates with the formation of a connected network topology satisfying all constraints posed by Bluetooth. An attractive protocol feature is its ease in implementation using the communication primitives offered by the Bluetooth Specification.     

Bluetooth in wireless communication

Bluetooth is a method for data communication that uses short-range radio links to replace cables between computers and their connected units. Industry-wide Bluetooth promises very substantial benefits for wireless network operators, end workers, and content developers of exciting new applications. This article delves into the implementation and architecture of Bluetooth. It also describes the functional overview and applications of Bluetooth, and deals with the development of a model for recording, printing, monitoring, and controlling of eight process variables at the same time, using a distributed control system. We explain industrial automation via Bluetooth using IISS. Industrial automation is one of the major applications of Bluetooth technology. Industrial automation, in terms of controlling or monitoring a factory, office, or industrial process, means to install machines that can do the work instead of human workers. Industrial plants consists of many devices interconnected in different ways ranging from simple data collection units (I/O) to more intelligent devices such as sensors, one-loop controllers, or programmable controllers, and a supervisory system used as a human-machine interface (HMI) for data logging and supervisory control. An IISS is a controlling device that monitors the devices in a company. It basically communicates via the interface card in the PC; the hardware is connected parallel across the device, and it is interfaced with the PC via a transceiver. The device can be accessed both manually via the switches and remotely via the PC. A simulation of connecting a PC with the machines in a company was executed. Also, we wrote a software program using C language; we will show how the remote monitoring takes place between the control room and the PC. These details in the article establish the growing need for Bluetooth technology     

应用蓝牙技术组建无线局域网

采用蓝牙技术组建无线局域网，不仅在办公条件不完善时能发挥作用，在临时增删办公点和移动性办公业务方面也有着独特的优势。对蓝牙技术做了介绍，并就组网体系结构做了说明，对蓝牙技术的发展趋势做了展望。