無線感測器網路是由大量布建在目標監控區域的無線感測器組成的，透過無線通訊技術建構一個具有自我修復能力的網路系統。透過感測和收集環境中不同的資料，無線感測器網路給予該目標監控區域的管理者能夠去處理和分析資料的能力。透過這些能力，管理者能夠進一步的研究和改善影響環境的各種因素。即使無線感測器網路相關技術隨著時間越發進步，無線感測器網路的維持還是需要人力的幫助來達成。
無線感測器網路的目的是要在布建完成之後持續不斷的收集資料。然而，考慮到無線感測器網路所布建的環境常會碰到不可預期的事件使得一部分或是整個無線感測器網路無法正常運作。當布建在室內時，可能會因為人為的行動造成感測器的損毀或是傳輸路徑的遮蔽；而當布建在室外時，可能會因為天災或是野生動物的影響導致系統失常。為了要能夠修復這些不可預期的事件造成的不良影響，人力介入的修復動作(如損毀硬體的替換、電池的更換)是必要的。當錯誤的判斷出現時，像是將能夠正常運作的感測器判斷為無法正常運作，就會造成不必要的修復動作消耗。為了以最低的額外負擔來減少錯誤判斷發生的機會，我們提出了一個僅需透過歷史紀錄檔來實現的節點故障偵測方法，並透過實作證明此方法在實地布建完成的感測器網路上是可用的。

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