結論與未來研究方向
在這篇論文裡，我們利用位元碰撞來當作第三個位元狀態值，使得原始資 料可以用較短的資料長度來表示，也使得 Tag 可以減少回傳 Reader 的資料 量，並減少資料傳輸的時間，在一個單位時間內可以辨識出更多的 Tag，設計 一個簡單的編碼功能，改變 Tag 回傳資料的表示方式，用最少的運算方法提 高資料的安全性，加強 Secure Tree-Walking 演算法在 Tag 回傳資料的通道上
，資料傳輸的安全，可以有效的防止資料被竊聽、追蹤等安全，這些皆可以實 驗與分析的說明中得到證明。並且從上面的實驗資料中，當把 Tag 數量固定 在 100 個的時候，VLE 的編碼技術將增加約五十倍的掃描次數。
在目前的方法中，尚有二項目標要加強；首先，每個位元只能表示三種資 料狀態，VLE 演算法能節省的傳輸時間，約為沒有進行資料壓縮的 0.75 倍，
如何讓每個位元能表示更多的資料狀態，便可以節省更多的資料傳輸時間，而 當每個位元能表示更多的資料狀態時，也將會使得編碼後的資料安全性增加；
另外，目前是使用 PID + Segment Mask 來取得每一個 Segment 的 Shift Code 值，儲存在Tag 記憶體中的每一組 Segment Mask 都是一樣，經過長時間的監 控，總有一天會被破解，如何讓 Reader 與 Tag 經過一段時間改變 Segment Mask 的值，加強破解的難度，也是後續要加強的地方。
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