基于蓝牙技术的小区警情无线监测系统

蓝牙技术目前是最先进的无线网络技术,它以低成本、近距离、微功耗的无线连接为基础,取代电缆,将一定范围的计算机通信电路及设备连接起来,实现不同设备之间的快速互连。应用蓝牙技术与蓝牙芯片ROK101007相结合,提出了“智能小区警情监控系统”方案,这种“高效、快速、低耗、稳定、可靠”的方案,具有广阔的应用前景。     

Pattern mining in tourist attraction visits through association rule learning on Bluetooth tracking data: A case study of Ghent,Belgium

The rapid evolution of information and positioning technologies, and their increasing adoption in tourism management practices allows for new and challenging research avenues. This paper presents an empirical case study on the mining of association rules in tourist attraction visits, registered for 15 days by the Bluetooth tracking methodology. This way, this paper aims to be a methodological contribution to the field of spatiotemporal tourism behavior research by demonstrating the potential of ad-hoc sensing networks in the non-participatory measurement of small-scale movements. An extensive filtering procedure is followed by an exploratory analysis, analyzing the discovered associations for different visitor segments and additionally visualizing them in ‘visit pattern maps’. Despite the limited duration of the tracking period, we were able to discover interesting associations and further identified a tendency of visitors to rarely combine visits in the center with visits outside of the city center. We conclude by discussing both the potential of the employed methodology as well as its further issues.     

Validating Bluetooth logging as metric for shopper behaviour studies

The ability to track shoppers as they move through retail environments using signals emitted by their communication devices kindles the interest of practitioners and researchers. This data collection method is cheap and has the ability to supply big data for shopper insights. However, this non-probabilistic sampling method can possibly under- or over-represent certain groups of the shopper population. This study assesses the validity of the data describing the length of shopping trips and representativeness of the sample of shoppers carrying Bluetooth-enabled devices. The authors track unique Bluetooth logs in-store and compare to simultaneously collected data from a manual, systematic sample of 324 shoppers observed and interviewed in the same supermarket. A comparison of the results obtained from the two samples (auto-logging and manual systematic) drawn from the same population indicates automated Bluetooth tracking produces very similar (r=.92, p<.001) trip lengths to that observed manually. Basket size, spend and occupation of Bluetooth trackable shoppers are similar to those with no Bluetooth-enabled devices. These findings present compelling evidence that the Bluetooth auto-logging method holds great potential for retail practice and research. An expected under-representation of the oldest demographic (66 y.o. and over) in the Bluetooth discoverable sample calls for complementary methods of data collection to minimise representation bias in real-time tracking technologies for shopper research. The benefits of using auto-logging data describing shopping trip length for retail practitioners and researchers are discussed.     

蓝牙跳频算法仿真和系统容量分析

本文讨论了Bluetooth（蓝牙）无线系统的跳频算法，并对其进行了计算机仿真；根据仿真结果，分析了Bluetooth的系统容量，并提出了提高系统容量的建议。     

基于时钟和地址的跳频序列的产生和性能分析

在一般跳频系统中，跳频序列是由递归算法产生的，如PN序列以及混沌序列、模糊序列等。本文介绍的基于时钟和地址的跳频序列提供了一种新的产生方法。这种序列是由长比特设备地址和不断变化的长比特时钟信息经过一系列运算而产生的，即基于时钟和地址和跳频序列，该序列具有理想的均匀频谱特性和很长的周期；序列线性跨距很长，不容易被智能干扰机干扰；序列的汉明相关特性也很好；这个特点在多址接入通信中非常有用。该序列另一个重要特征是硬件实现简单容易，事实上，这种序列巳成功应用于蓝牙跳频系统中。本文主要介绍这种跳频序列的设计产生过程，并对序列的各种性能进行分析。     

蓝牙技术在飞行器地面测试中的应用

飞行器在地面测试目前所采用的是有线电缆网,严重制约了飞行器测试的机动性和计算机化。本文提出一种无线脱落插头概念,其可靠性、安全性能够满足飞行器测试的要求。无线脱落插头是微电子、计算机技术与通信技术相结合产品,是蓝牙技术在飞行器测试中的一个新应用。它将促进飞行器测试自动化,有着广泛的应用前景。     

基于蓝牙的Ad Hoc网络形成协议

当前技术贸易在“新经济”条件下正呈现新的发展规律和趋势。本文探讨了“新经济”条件下技术贸易发展新趋势,着重研究由此对我国技术贸易产生的影响,并就“新经济”条件下我国技术贸易的发展对策,提出自己看法。     

移动商务--21世纪的机遇与挑战

系统分析了从电子商务到移动商务的结构性变迁,并对移动商务--21世纪的机遇与挑战及其发展前景进行了研究﹑探讨及展望。     

石英晶体与蓝牙技术的配合方案

无线系统对晶体的要求很高,本文以蓝牙芯片为例探讨石英晶体在开发与应用时的设计方法,以获得最适宜的匹配方案。     

A quality-oriented framework with QoS management using Bluetooth as a case

In a modern society that is inundated with cell phones, laptops, PDAs and other IT facilities, it is little wonder that digital handheld tools and facilities have followed suit in the wireless trend. Services in Bluetooth promise to allow industries and businesses to adapt rapidly to changes in the business environment and to the needs of IT users. Nevertheless, the dramatic changes of services in Bluetooth also result in undesirable interactions that negatively influence quality of service and customer satisfaction regarding Bluetooth. Consequently, it is important to discuss the service quality, service feature interaction and service recovery about Bluetooth and their influence on user satisfaction and trust. Due to particular properties of wireless communication services, there exist software testing models and methodologies in the domain of wireless communication services. Based on the previous literature that defines the overall quality of wireless communication services, this study proposes a quality-oriented framework that may be effectively applied to the area of wireless communication.