Research and Development of Integrating Innovative Communication Protocol and Wireless Bio-Medical Sensor Network
| Autor: | Chao-Sheng Wang, 王昭勝 |
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| Rok vydání: | 2005 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 93 In the age of rapid development on wireless technology, the need of information collection and analysis with numerous wireless sensor nodes grows correspondingly. How to build a set of efficient communication protocol and power management method becomes an essential task in this era. In this thesis, an appropriate network communication protocol that is suitable for power management of site monitoring and for healthcare monitoring was proposed. The communication protocol uses hierarchical architecture, which applies star topology in the local area wireless sensor network in order to decrease the communication complexity of wireless sensor network. Ad-hoc topology is employed among local area wireless sensor networks and the local control centers negotiate the operating schedule to avoid interference between ambient local area wireless sensor networks. The research attempts to design the interior local area wireless sensor network protocol in order to provide wireless sensor nodes non-event-driven and ultra-low duty cycle power efficient nodes. Network characteristics and battery life-time estimation of wireless sensor node under the communication protocol is simulated by discrete event simulation method. In the wireless sensor network experiment, the wireless sensor nodes around the local control center can be controlled under the implemented communication protocol to form a local area wireless sensor network. Applying the local area sensor network in structure monitoring and healthcare monitoring are demonstrated successfully. Besides power efficient protocol, power harvesting system is implemented into power supply for the wireless sensor node, which scavenges environment vibration energy for power consuming usage in the idle mode is also detailed to further increase battery lifetime. The wireless sensor node hardware design, communication protocol design and simulation, power efficient protocol and management, final integration and wireless sensor network experiments are all detailed in this thesis. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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