Implementation of a WAP-based telemedicine system for patient monitoring

Many parties have already demonstrated telemedicine applications that use cellular phones and the Internet. A current trend in telecommunication is the convergence of wireless communication and computer network technologies, and the emergence of wireless application protocol (WAP) devices is an example. Since WAP will also be a common feature found in future mobile communication devices, it is worthwhile to investigate its use in telemedicine. This paper describes the implementation and experiences with a WAP-based telemedicine system for patient-monitoring that has been developed in our laboratory. It utilizes WAP devices as mobile access terminals for general inquiry and patient-monitoring services. Authorized users can browse the patients' general data, monitored blood pressure (BP), and electrocardiogram (ECG) on WAP devices in store-and-forward mode. The applications, written in wireless markup language (WML), WMLScript, and Perl, resided in a content server. A MySQL relational database system was set up to store the BP readings, ECG data, patient records, clinic and hospital information, and doctors' appointments with patients. A wireless ECG subsystem was built for recording ambulatory ECG in an indoor environment and for storing ECG data into the database. For testing, a WAP phone compliant with WAP 1.1 was used at GSM 1800 MHz by circuit-switched data (CSD) to connect to the content server through a WAP gateway, which was provided by a mobile phone service provider in Hong Kong. Data were successfully retrieved from the database and displayed on the WAP phone. The system shows how WAP can be feasible in remote patient-monitoring and patient data retrieval.     

Design and implementation of a wireless internet remote access platform

Recently, mobile networks and internet technologies have been widely developed for the voice communication and information retrieval services all over the world. Compared with the wire‐line internet environment, mobile networks have lower bandwidth, longer transmission latency and unreliable connection, and the capability of mobile terminals is restricted by the limited memory size, lower CPU computation capability and inconvenient I/O interface. These limitations restrict the development of the wireless internet applications. In this paper, we design and implement a ‘wireless internet remote access platform’ (WIRAP). The WIRAP platform interconnects the wireless network and internet to provide mobile users a remote centralized storage and computation environment. A mobile user can store large volume of data and execute complex computations on WIRAP instead of on the mobile terminals. WIRAP supports different network interfaces (e.g. short message service (SMS), wireless markup language (WML) and hyper text markup language (HTML) and users may use terminals (with different network capabilities) to access WIRAP. Copyright © 2006 John Wiley & Sons, Ltd.     

Web信息抽取技术在智能WAP网关中的应用

随着移动上网业务的不断发展,WAP技术越来越受到人们的重视,为了解决WAP网站信息资源匮乏的问题,本文提出了一种实现WAP网关智能化的方法,在Web信息抽取技术的帮助下,可以将互联网上的普通网页资源以适当形式显示在用户手机的WAP浏览器中,从而达到扩大WAP浏览器使用范围的目的.     

World Wide Web: whence, whither, what next?

The World Wide Web (WWW) has become, next to electronic mail, the most popular Internet application. It has been a major contributor in turning the Internet into a household word. The WWW allows users to retrieve text and multimedia objects from servers located throughout the world, with objects connected by hypermedia links. The author presents a snapshot of the WWW after about half a decade, and speculates about where this young medium might be improved and which directions it might take from a technical perspective. Like most (successful) Internet technologies, the underlying central functionality of the Web is rather simple: a naming mechanism for files (the universal resource locator, URL), a typed, stateless retrieval protocol (hypertext transfer protocol, HTTP), and a minimal formatting language with hyperlinks (hypertext markup language, HTML)     

无线上网新技术——WAP

Ｉｎｔｅｒｎｅｔ和移动通信已经在全球迅猛发展,无线上网成为必然趋势,ＷＡＰ论坛所制定的ＷＡＰ协议充分应用Ｉｎｔｅｒｎｅｔ的思想,支持多种目前及将来的无线网络,寿命用户在移动中使用各种目前仅在有线方式下方可使用的服务。本文介绍了ＷＡＰ的技术背景、设计思想和系统结构,并分析了ＷＡＰ对业界和人们的影响。     

基于WAP的随身手机营业厅系统设计实现

手机已经成了大众化的消费产品，用手机通过WAP上网，享受各种便捷的服务已成为一种新的消费时尚，本文首先介绍了WAP的概况，然后结合联通CDMA网络的实际情况，给出了一个基于WAP的移动应用服务系统——随身营业厅——的设计与实现，可以实时地为用户提供多种服务     

基于J2ME的无线Internet应用方案

分析了J2ME（Java2 micro edition)技术的体系结构以及它在手机等无线通信设备上的应用，探讨了结合J2ME与WAP等技术Internet应用的无线模型，并对今后无线Internet应用的发展趋势作出了预计。     

WAP网关在移动网络业务中的应用分析

WAP网关是手机上网重要的枢纽,首先介绍WAP网关在移动网络应用中的业务接口及网络结构,其次介绍了WAP的业务流程,最后重点介绍对WAP网关的设备监控、故障管理及故障分析。     

实现Internet服务和无线终端间的无缝连接

Ｉｎｔｅｒｎｅｔ使人们得以方便地访问丰富的信息资源，移动电话则打破通信的位置制约。这两种技术经过几年的飞速发展之后，将理所当然地结合起来，使人们不受地点的限制访问信息。而ＨＴＭＬ、ＷＡＰ等协议的开发和应用，使无一数据的前景更加光明。     

A performance evaluation approach for GSM-based information services

The ever increasing diffusion of mobile communications will lead to massive mobile access to the Internet. The paper focuses on the wireless application protocol (WAP) for providing mobile information services, as envisaged by the personalized access to local information and services for tourists (PALIO) project within the fifth research framework of the European Commission. In particular, we consider a global system for mobile communications (GSM) network where WAP traffic is transported by the short message service (SMS) on specific GSM signaling channels. We develop suitable traffic models for both the WAP downlink traffic and the signaling traffic. An analytical approach is described that allows evaluation of the mean transmission delay of a WAP page. Finally, a downlink traffic scheduling policy is proposed in order to reduce the delay variance so that users experience a more regular traffic behavior (service usability requirement). The theoretical derivations for the GSM-SMS scenario are general and can also be tailored for other mobile communication systems. The study allows dimensioning of both the service and the downlink signaling traffic capacity in order to fulfill quality-of-service requirements for users.     

新一代移动通信综合业务信息服务系统

无线应用协议 (WAP)融合了因特网技术与移动通信技术的优势 ,成为事实上的业界标准。基于WAP技术提供无线信息服务已成为目前移动通信与信息行业新的业务增长点。文章通过对WAP技术及其应用现状的分析 ,提出新一代移动通信综合业务信息服务系统解决方案。该系统将运营商优势与WAP技术充分结合 ,实现符合当前无线应用需求的运营模式和体系结构。     

Ubiquitous Information Services with JAIN Platform

To provide responsive information services in a ubiquitous computing environment, service software and system development are indispensable. A component-based ubiquitous information system with a JAIN (Java APIs for Integrated Networks) platform to achieve seamless transmissions and reach-everywhere communications was designed in our research. In this development, numerous ubiquitous service modules were identified: location management, roaming, mobile IP and WAP networking. These component-based network modules were constructed using a component composition language with component specification and interface definition, running on top of a distributed service architecture using a JAIN platform to distribute the ubiquitous information services to mobile users. Two applications, Wireless-Application-Protocol (WAP) Mail and Video-on-Demand (VoD) services, show that the JAIN-like platform with the developed networking components effectively fills the gap for application developers between mobile appliances and various kinds of ubiquitous information services.     

基于ZIGBEE的智能旅馆环境监测系统设计

基于ZIGBEE无线通信技术设计了智能旅馆环境监测系统.该系统主要包括传感器节点、ZigBee协调器、上位机、Android手机终端.通过实验证明了该系统的可行性,旅客可以通过手机APP实时监测旅馆房间内的环境状态.     

基于Android平台的网上商城的实现

随着移动通信与Internet的飞速发展及相互融合,GPRS使无线网络高速接入到Internet 成为现实,移动用户从而可以享受到Internet提供的服务.这样,移动终端不再仅是通讯网络的终端,还将成为互联网的终端.首先给出了系统研究背景,对当前手机操作系统发展做了简单的介绍.进而详细地分析了android的特征、架构、以及android应用的构成和工作机制,并对android和其他手机操作系统进行了比较,说明了android在手机操作系统中的优势.本系统主要用于对手机上网用户在线浏览该网站,用户管理员可以对商品信息进行增删改查等功能,用户可以在该网站注册,注册后的用户还可以商品进行购买以及评价.使用该系统很大的提高了用户购买能力.     

智能家居管理系统

系统结合智能家居节能、安全、自动化的特点,设计了智能家居管理系统.利用无线路由器实现局域网和外网监控,在电脑端和手机端上利用上位机进行远程视频观看和控制家用电器,通过GSM发送短信对家电进行控制,并能实现家居安全监控.该系统具有户外防盗监控和户内照明自动控制功能,测试效果良好,具有实际应用价值.     

无线网络中无线应用协议的分析

WAP技术是移动终端访问无线信息服务的全球主要标准。介绍了无线通讯技术中的WAP协议的各个层次协议所包含主要内容，并讨论了WAP协议中安全协议——无线传输层安全（WTLS）协议，最后介绍当前WAP应用中存在的一些缺陷。     

A Service Management Framework for M-Commerce Applications

Mobile commerce (m-commerce) refers to an ability to conduct wireless commerce transactions using mobile applications in mobile devices. M-commerce applications can range from as simple as an address book synchronization to as complicated as credit card transactions. M-commerce is expected to grow dramatically in the near future supporting simple to complex commerce transactions. Even though the Wireless Application Protocol (WAP) is designed to facilitate the development of wireless applications, it will not be sufficient to handle complex business transactions that require cooperation of different service applications. In order to handle these complex mobile commerce transactions efficiently, an intelligent, robust and scalable framework that provides diverse m-commerce services is required. This paper describes in detail such an m-commerce framework based on the Java Intelligent Network Infrastructure (JINI) and Wireless Applications Protocol (WAP).     

基于Android系统的机顶盒及其摇控器的设计与实现

基于Android系统的机顶盒及其遥控器是以Android系统为平台开发一款硬件与软件相结合的产品,在传统机顶盒的基础上实现对电视和电脑屏幕的无线控制,最终实现三屏融合。不但能够利用当前Android移动终端自身强大的计算处理能力、丰富的网络交互功能和各种硬件资源,提供给用户智能人性化的应用,还能相应地降低开发和生产的成本,便于将产品在市场中推广。     

基于Android平台的实时音视频无线传输系统

随着无线宽带技术的迅速发展和3G通信网络的逐步普及,通过移动智能终端进行视频会话,已成为商务人士以及传统手机用户的迫切需求。以Android智能终端为基础,设计并实现了实时音视频传输系统,为后续基于移动终端的多媒体会议系统的开发提供了重要的参考,进而对相关系统各项性能如延迟、质量的评估提供了依据,为后续系统的开发与优化提供了研究原型,具有一定的理论验证意义。     

Highly Personalized Information Delivery to Mobile Clients

The inherent limitations of mobile devices necessitate information to be delivered to mobile clients to be highly personalized according to their profiles. This information may be coming from a variety of resources like Web servers, company intranets, email servers. A critical issue for such systems is scalability, that is, the performance of the system should be in acceptable limits when the number of users increases dramatically. Another important issue is being able to express highly personalized information in the user profiles, which requires a querying power as that of SQL on relational databases. Finally, the results should be customized according to user needs, preferences and the mark up language of their mobile device. Since the queries will be executed on the documents fetched over the Internet, it is natural to expect the documents to be XML documents.This paper describes an architecture for mobile network operators to deliver highly personalized information from XML resources to mobile clients. To achieve high scalability in this architecture, we index the user profiles rather than the documents because of the excessively large number of profiles expected in the system. In this way all queries that apply to a document at a given time are executed in parallel through a finite state machine (FSM) approach while parsing the document. Furthermore, the queries that have the same FSM representation are grouped and only one finite state machine is created for each group which contributes to the excellent performance of the system as demonstrated in the performance evaluation section.To provide for user friendliness and expressive power, we have developed a graphical user interface that translates the user profiles into XML-QL. XML-QL's querying power and its elaborate CONSTRUCT statement allows the format of the results to be specified. The results to be pushed to the mobile clients are converted to the markup language of the mobile device such as Wireless Markup Language (WML), CHTML or XHTML by the delivery component of the system.