順應時代的演進，資通訊科技日趨蓬勃發展，帶動物聯網新興世代，各式設備相繼連結上網，因此頻譜資源的使用需求油然而生，但頻譜資源是非常有限的，面對大量頻譜資源使用的慾望，要如何將頻譜資源做最適的分配，並使提高使用效率，解決頻譜資源壅塞的問題，是當前電信產業與政府機關待解決的一大課題。
本研究設計此動態頻譜接取平台，用以增加頻譜資源的使用率，並使得頻譜資源更易於管制。本平台利用感知無線電 CR (cognitive radio) 技術，搭配GNU Radio平台偵測頻率使用狀況，將平台以Python撰寫架設於樹莓派(Raspberry Pi3)上，並透過MySQL進行頻譜資料的管理。研究主要分為三個主要的使用角色，分別為：中央管理者、監控管理者與一般頻譜使用者。一般頻譜使用者可以透過軟體定義無線電設備 (universal software radio peripheral, USRP)，並設置所需發射的參數，感測周圍環境頻譜使用狀況，若目前某一段頻譜是閒置的，則可以藉由本研究平台向監控管理者發送頻譜使用的請求，監控管理者會連接至監控管理資料庫，並由資料庫進行干擾判斷，進而同意一般頻譜使用者之發射請求。而中央管理者的中央管理資料庫則用來儲存所有監控管理者的監控管理資料庫內容，具有最高的權限，管理所有的監控管理者與一般頻譜使用者。

With the evolution of the era, a wide variety of devices are connected to the Internet. The demand for the use of spectrum resources has emerged, but the spectrum resources are very limited. Facing this problem, how to make the most appropriate allocation of spectrum resources and improve the efficiency of spectrum usage is currently a major issue to be solved for mobile operators and government regulators. This study has designed a dynamic spectrum access platform to increase the utilization of spectrum resources and make spectrum resources easier to control. This platform can detect environment by CR (cognitive radio) technology and GNU Radio. Moreover, the platform is written in Python codes and built on the Raspberry Pi3 Model B+. Also we use MySQL as a database system to manage spectrum data. The study has three users, including central manager, supervisory manager and the end user. Central manager has the highest authority to manage all users. Supervisory manager can manage local user. The end user can sense surrounding environment through USRP (universal software radio peripheral). If a certain part of the spectrum is currently idle and no other devices nearby are using the certain spectrum resource, the end user can send a request to supervisory manager. This platform will make interference judgments, and then agree to the request if interference does not occur. At the same time, these approved spectrum and user information will be stored into database.

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