本論文整合前後端技術，經由Node.js用以開發伺服器程式，與Cordova用以開發手機App程式，進而實現使用手機App聯網控制智慧插座，並能監控該插座被使用時之電能狀況。本智慧插座可區分為負載控制與電能量測監控兩個子單元，負載控制子單元負責插座的啟閉控制，其仿效公用免費WiFi之使用機制，當使用者由手機App以WiFi方式存取中控端伺服器開啟插座使用前，手機畫面將先被置入廣告服務，且中控端伺服器另有計時斷電與斷線切斷機制，用以防止電能浪費。當智慧插座被使用後(即負載開啟)，電能量測監控子單元便會對所使用插座上之負載進行用電監控。最後，經本文所實作之量測電路，於取得電能訊號並加以運算後，可透過輕量化的MQTT協議傳輸電能資料至監控端伺服器，並將相關電力參數以動態儀表板和動態折線圖之方式呈現於前端網頁中，用以達到資料視覺化的效果。

This thesis implements a smart plug prototype by integrating a front-end and a back-end into a mobile device. The server side and the mobile application are developed using Node.js and Cordova, respectively. The implemented smart plug has a function for load control and monitor load energy consumption. The structure of the complete smart plug is divided into two parts including load control and energy monitoring. As for the load control part, it is responsible for the plug’s on/off control imitated from the mechanism of public WiFi connection that the mobile application will push advertisements before users access the control center server via WiFi to use the plug. In addition, the control center server has two mechanisms to avoid energy waste which are cut-off counted from the using time up to 30 minutes and the users disconnection cut-off mechanism. When a load on the plug is turned up, the function of energy consumption monitoring is turned on to monitor energy usage. The signals of energy usage are obtained from the energy measurement circuit and the data are calculated to deliver to the monitoring server via MQTT protocol. The monitoring server then takes this information to a webpage by dynamic dashboard and line chart to show the trend of energy usage.

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