Design and Implementation of a Lightweight Wireless Embedded Internet Platform With the Constrained Application Protocol
| Autor: | I Gede Darko Pancev, 易英戈 |
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| Rok vydání: | 2016 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 104 The Internet has been a great success over the past 20 years, growing from small academic networks into global networks used regularly by over 1.4 billion people. Another Internet revolution, known as Internet of Things (IoT), has been going on with the maturing of the net communication in routers, servers and personal computers. The vision behind the IoT is that embedded devices are universally becoming IP (Internet Protocol) enabled and an integral part of Internet. The scale of the IoT has already been estimated to be immense, with the potential of trillion of devices becoming IP-enabled. The impact of IoT will be significant with the promise of better environment monitoring, energy saving, smart grids, more efficient factories, better logistic, better healthcare systems, and smart homes. However, one of the greatest potential growth of IoT comes from low power embedded devices that until now have not been IP-enabled. A new paradigm, known as Wireless Embedded Internet, is needed to enable low-power wireless devices with limited processing capabilities to participate in the IoT. Until now only powerful embedded devices and networks are able to natively participate in the Internet. Direct communication with traditional IP networks requires many Internet protocols, and an operating system to deal with complexity and maintainability. These requirements have in practice limited the IoT linking to devices with a powerful processor, an operating system with a full TCP/IP stack, and an IP-capable communication link. The main contribution of this study is to investigate a reliable way of future IoT networking by designing and implementing a lightweight wireless embedded platform, which equips with the characteristics of low power consumption, memory-constrained, small size, low cost IP-enabled wireless embedded device and the constrained application protocol. As a result, the embedded device with Low Power Wireless Connectivity, called “Lowvy,” was born, and a newest version of IP standard called IPv6 was successfully enabled on Lowvy wireless embedded devices with low-power consumption, thus enabling end-to-end IP networking, and wide range of wireless embedded IoT applications. Internet integration of Lowvy wireless embedded platform has been tested by creating an online environment-monitoring system which periodically published the measurement results of environment-monitoring applications (e.g., temperature, humidity, air quality, and ambient light) to Ubidots Cloud service. Therefore, by the designed system, we are able to access the applications from anywhere in the world through Internet connectivity. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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