應用於無線感測節點之擷能管理系統研發

Development of an Energy Harvesting Management System for Wireless Sensor Node

蕭又升(Yo-Sheng Hsiao)

指導教授 ： 宋朝宗

國立虎尾科技大學/工程學院/飛機工程系航空與電子科技碩士班/碩士(2016年)

摘要

近年來無線感測網路技術日新月異，對於高性能、低功耗和高壽命的需求日益提升，故本論文以研發無線感測節點擷能之關鍵技術，並擷取能源來維持無線感測網路系統之續航力，能源以太陽能為主，並將能量透過此系統送至無線感測器網路，再將部分能源存至鋰電池中，以便提升無線感測網路之生命週期，除了擷取太陽能之外，還搭配太陽能最大功率追蹤，來達到提高擷取能源之效率。本論文電路使用LT362HV為系統主要核心，擷取及轉換太陽能之電能來提供感測器節點工作與電池充電之能量，達到最佳化能源使用效率與提高無線感測節點的生命周期，進而提升與擴展無線感測網路應用的可靠度與實用性。

關鍵字

無線感測網路 ； 擷能 ； 最大功率追蹤

並列摘要

In recent years, the key technologies of wireless sensor network have been rapidly developing. As the wireless sensing devices become cheaper and smaller, these miniaturized nodes offer the opportunity for the electronic sensor to many different applications. The practical applications of wireless sensor network require high-performance, low power consumption, more reliable and more prolonged lifetime deployments for potentially a very large number of wireless sensor and actuator nodes. In this paper, the sensor nodes with energy harvesting are studied and developed to reach the goal having the independent energy, and to effectively extend the life cycle of sensor nodes and network. The energy harvesting circuit with MPPT function is designed to capture and transform the solar energy to charge the rechargeable battery to provide the power of wireless sensor nodes and extend the lifetime of battery. This harvesting circuit is implemented by applying LT362HV IC as system core to achieve the catch and conversion of solar energy. The main objective of this study is to optimize the energy efficiency of wireless sensors and life cycle, and furthermore to enhance and extend the application reliability and practicability of wireless sensor network.

並列關鍵字

Wireless sensor network ； sensor node ； MPPT

參考文獻

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