隨著網路的發展，物聯網逐漸興起應用的層面也越來越廣泛，傳統的工業以大量製造降低成本的商業模式為主。然而為了因應現代市場的快速變化、少子化以及人力成本的提高，企業透過轉型來降低製造成本。在工業4.0的推動下，製造業面臨數位轉型的挑戰，要轉型成智慧工廠的第一步需要與工廠內的機臺建立通訊，在生產過程中能夠監控機臺並且收集加工數據有助於提升整體的生產效率與產品品質。本研究以台灣工業界常用之CNC控制器品牌發那科（FANUC）與PLC控制器品牌三菱（MITSUBISHI）分別開發對應之物聯網系統。使用FOCAS Library與FANUC控制器進行通訊、採集數據與監控工具機。數據傳輸的過程呼叫使用SharpPcap功能擷取流量封包，並使用防火牆建立規則過濾封包的流動，與三菱PLC通訊的方法使用MX Component進行連線，來獲取數據與監控狀態。
本研究建立了一套具有資安功能之物聯網系統來與工具機通訊，採集加工數據並將數據儲存至雲端，達到資料數位化。在數據傳輸的過程中考慮了網路安全方面之問題，將流經電腦與工具機端口之網路封包擷取至系統中供使用者參考，並透過防火牆將不明來源之IP位址進行封鎖。過往以插入USB隨身碟將NC程式上傳至工具機的方法，改為將隨身碟插入到電腦中後，再利用本系統進行上傳，降低工具機因隨身碟可能夾帶不明程式造成機器受到攻擊的可能性。

With the development of the Internet, the application of the Internet of Things (IoT) has become increasingly widespread. Traditional industries have primarily focused on mass production to reduce costs. However, in response to the rapid changes in the modern market, declining birth rates, and increasing labor costs, businesses are undergoing transformations to lower manufacturing costs. Under the impetus of Industry 4.0, the manufacturing industry is facing the challenge of digital transformation. The first step towards becoming a smart factory is to establish communication with the machines within the factory. Monitoring the machines and collecting processing data during the production process helps improve overall production efficiency and product quality. In this study, IoT systems corresponding to commonly used CNC controllers in the Taiwanese industrial sector, such as FANUC and Mitsubishi PLC controllers, were developed. The FOCAS Library and FANUC controllers were used for communication, data collection, and monitoring of machine tools. During the data transmission process, the SharpPcap function was utilized to capture packet flows, and firewall rules were established to control inbound and outbound packet traffic. The MX Component was employed for communication with the Mitsubishi PLC to obtain data and monitor its status.
This study established a set of Internet of Things system with information security function to communicate with machine tools, data collection, and cloud storage, achieving data digitization. Network security issues were considered during the data transmission process. Network packets passing through the computer and machine tool ports were captured and made available for user reference. Unknown IP addresses were blocked through the firewall. The conventional method of uploading NC programs to machine tools by inserting USB flash drives was replaced with the process of inserting the flash drive into the computer and utilizing this system for uploading, reducing the possibility of machine tool attacks due to potentially malicious programs carried by USB flash drives.

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