適應性無線感測網路平台設計與實作

Abstract

近年來，無線感測網路大量被應用在高即時性、低成本、高穩定度及 高強健性的結構健康監測系統，相關研究與開發無線感測網路中節省能源 消耗和如何延長網路系統生命是經常被探討的，大多數的想法都在思考如 何有效率的回傳資料，達到延長網路系統運作時間的目的，現行的大多數 的作法會把資料匯集在某一特定節點上再回傳至終端或在回傳的路徑上會 過於集中在特定節點，可能造成部分節點快速死亡，本論文主要目標為設 計針對單一匯流點非移動式無線感測網路開發能由主控端依最佳能源效率 運算及並下指令改變路由路徑和改變網路拓樸之平台。 此適應性無線感測平台實體層和媒體介質層使用基於IEEE 802.15.4 標準之低功耗無線傳輸平台，並依感測器傳輸資料需求和系統能源效率實 際需求自行開發網路層和應用層。本研究針對適應性無線感測平台完成硬 體、相關韌體和網路層及應用層開發。

Recently, wireless sensor network(WSNs) is applied massively in high real time, low cost, high reliability, high robustness structural health monitoring system. Extended network system operation life time and energy efficiency is discussed frequently. Most method are focus in how to efficiency transmit and receive data for extended system life time. The present majority's method will centralize the data in some specific node and transmit to the terminal gateway. This method possibly causes the partial nodes to die fast. This paper design and implement dynamic change network structure by control center that perform optimization energy algorithem in single terminal gateway and Non-mobile wireless sensor network configuration. This adaptive wireless sensor network platform is based on the physical layer and media access layer of low power consumption standard IEEE 802.15.4 and develops the adaptive network layer and application layer according to system transmission and energy requirements. This study development wireless sensor network hardware, system firmware, network layer protocol and application layer.