Internet and mobile phones are two of the most popular innovations of information technology in recent times. As the number of Internet and mobile phone users continues to grow, it is expected that mobile services that enable e-commerce would provide new business opportunities constantly. With the expected rapid growth of mobile commerce, factors affecting the adoption of relative technologies have recently turned into a critical topic of business research. / While the final success of 3G networks is still to be determined, GPRS-enabled mobile phones have been publicly available since 2001. In the area of mobile technologies that enable mobile commerce, GRPS is currently the most popular mobile phone service that allows users to execute business transactions through Internet. The innovation of GPRS technology offers mobile services with the advantages of low cost and fast speed, and thus becomes an ideal tool to be used for mobile commerce. Realizing the advantages of GPRS and the importance of relative studies to the mobile industry, this research aimed to address the issues of user acceptance and behavioural intentions on GPRS-enabled mobile phones. / In Taiwan, the penetration rate of mobile phone had reached 114% and made the number one in the world. This high penetration rate made Taiwan a practical site for studying mobile technology acceptance. This research was therefore proposed to be conducted in Taiwan to better understand the user adoption of mobile phones. This study first reviewed the development of mobile technologies as well as the theoretical background for the research. The model of decomposed theory of planned behaviour was then adopted as the research framework based on previous empirical studies of new mobile services. Fourteen hypotheses were developed to address the key research question as to the factors affecting the adoption of GPRS mobile phones in Taiwan. An online questionnaire was implemented for data collection from Internet users. Data analysis followed for hypotheses testing based on structural equation modelling. The study results show that cost and speed, perceived usefulness, image, risk, compatibility, peer influence, self-efficacy, and facilitating conditions are found to significantly influence the adoption intentions of GPRS technology. / This study on the adoption of GPRS technology is important for enterprises that are planning to offer mobile services. The results of this research may offer directions for industrial practitioners in the field to improve the diffusion and acceptance of GPRS. Such research results can also provide knowledge for business executives to better understand the primary concerns of mobile customers and thus develop mobile services and technologies more strategically. Other managerial implications and suggestions for future research are also discussed at the end of this dissertation. / Thesis (DBA(DoctorateofBusinessAdministration))--University of South Australia, 2005.

International Telemetering Conference Proceedings / October 20-23, 2003 / Riviera Hotel and Convention Center, Las Vegas, Nevada / The intelligent vehicle navigation system is a multifunctional and complex integrated system that uses autonomous vehicle navigation, geography information, database system, computer technology, multimedia technology and wireless communication. In this paper, an autonomous navigation system based on embedded hardware and embedded operation system that is Linux is proposed. The system has advantages of low cost, small mass, multifunction and high stability, especially connecting with Internet.

Made available in DSpace on 2015-04-22T22:00:52Z (GMT). No. of bitstreams: 1 Dissertacao_Alexandre Lopes.pdf: 2105277 bytes, checksum: 2f8d59afe6f1a33f9fb5978e5f6328a7 (MD5) Previous issue date: 2010-07-01 / FAPEAM - Fundação de Amparo à Pesquisa do Estado do Amazonas / This work presents a modular architecture for hardware development and integration of various technologies of wireless communication (Bluetooth, GSM / GPRS and ZigBee) in a gateway for Wireless Sensor Networks (WSNs). Thus, the proposal seeks to address an issue not widely explored in a practical way that is the local and remote collection of data from geographically distributed networks. The objective of this research is to focus on practical technological aspects that allow the integration of different technologies in a practical and real hardware platform. The proposed architecture includes power management and selection of several technologies for wireless communication that will be used according to the application. To validate the proposed architecture case study is carried out in order to present the results achieved during the experiments. / Este trabalho apresenta uma arquitetura modular de hardware para viabilização e integração de diversas tecnologias de comunicação sem fio (Bluetooth, GSM/GPRS e ZigBee) em um gateway para Redes de Sensores Sem Fio (RSSFs). Desta forma, a proposta visa solucionar um problema pouco explorado de forma prática, que consiste na coleta presencial e remota de dados de redes geograficamente distribuídas. O objetivo é concentrar essa investigação em aspectos tecnológicos práticos que permitam a integração de diferentes tecnologias em uma solução prática e real. A arquitetura modular proposta contempla o gerenciamento de energia e a seleção da tecnologia de comunicação sem fio que será utilizada de acordo com a aplicação. Para validação da proposta um estudo de caso é realizado com o intuito de apresentar os resultados alcançados durante os experimentos realizados.

Radio frequency identification (RFID) is a versatile wireless technology usedworldwide. The fields of applications are many and its popularity constantlygrows due to smaller in size, better and less expensive components. RFID isused to identify, track or share information about an object using radio waves. This master thesis describes the process of designing and implementing ahandheld UHF RFID reader. The goal was to, based on a UHF RFID-chipdesign a fully functional, small in size and power efficient device. Amicrocontroller provides the user interface and is also used to control theRFID-chip and a Bluetooth device. A Bluetooth- and GPRS-compatible mobilephone will be used to forward data to a server connected to the Internet. Allparts of the design are described, such as the printed circuit board design aswell as the software for the micro controller and the mobile phone. Because the extent of this thesis it is neither possible nor necessary to dig toodeep into the Bluetooth- or GPRS-protocol. The focus will be on designingsoftware and hardware for the handheld unit. / Radio frekvens identifiering (RFID) är en mångsidig trådlös teknik somanvänds över hela världen. Områdena där tekniken används är många och dess popularitet växer konstant tack vare mindre storlek, bättre och billigarekomponenter. RFID används för att identifiera, spåra eller dela med siginformation om ett objekt med radiovågor. Det här examensarbetet beskriver processen av design och implementering aven handburen UHF RFID läsare. Målet har varit att, baserat på ett UHF-RFIDchip, designa en fullt fungerande, liten och strömsnål enhet. En microcontroller förser dels användaren med ett användargränssnitt och sköter delskommunikationen med RFID chip och en blåtandsmodul. En blåtands- ochGPRS- eller 3G-kompatibel mobiltelefon används for att skicka vidare data tillen server kopplad till Internet. Alla delar av designen är beskrivna, så som PCB design, mjukvara för micro controllern och mobiltelefonen. På grund av omfattningen av det här examensarbetet så har det inte varitmöjligt eller nödvändigt att gräva för djupt i Blåtands- eller GPRS/3Gprotokollen. Fokus är på att designa hårdvara och mjukvara för den handhållna enheten.

<p>Radio frequency identification (RFID) is a versatile wireless technology usedworldwide. The fields of applications are many and its popularity constantlygrows due to smaller in size, better and less expensive components. RFID isused to identify, track or share information about an object using radio waves.</p><p>This master thesis describes the process of designing and implementing ahandheld UHF RFID reader. The goal was to, based on a UHF RFID-chipdesign a fully functional, small in size and power efficient device. Amicrocontroller provides the user interface and is also used to control theRFID-chip and a Bluetooth device. A Bluetooth- and GPRS-compatible mobilephone will be used to forward data to a server connected to the Internet. Allparts of the design are described, such as the printed circuit board design aswell as the software for the micro controller and the mobile phone.</p><p>Because the extent of this thesis it is neither possible nor necessary to dig toodeep into the Bluetooth- or GPRS-protocol. The focus will be on designingsoftware and hardware for the handheld unit.</p> / <p>Radio frekvens identifiering (RFID) är en mångsidig trådlös teknik somanvänds över hela världen. Områdena där tekniken används är många och dess popularitet växer konstant tack vare mindre storlek, bättre och billigarekomponenter. RFID används för att identifiera, spåra eller dela med siginformation om ett objekt med radiovågor.</p><p>Det här examensarbetet beskriver processen av design och implementering aven handburen UHF RFID läsare. Målet har varit att, baserat på ett UHF-RFIDchip, designa en fullt fungerande, liten och strömsnål enhet. En microcontroller förser dels användaren med ett användargränssnitt och sköter delskommunikationen med RFID chip och en blåtandsmodul. En blåtands- ochGPRS- eller 3G-kompatibel mobiltelefon används for att skicka vidare data tillen server kopplad till Internet. Alla delar av designen är beskrivna, så som PCB design, mjukvara för micro controllern och mobiltelefonen.</p><p>På grund av omfattningen av det här examensarbetet så har det inte varitmöjligt eller nödvändigt att gräva för djupt i Blåtands- eller GPRS/3Gprotokollen. Fokus är på att designa hårdvara och mjukvara för den handhållna enheten.</p>