智慧救生船溫度監控系統設計

Abstract

中文摘要 本研究旨在設計一套應用於智慧救生船之溫度控制系統，以解決救生船於執行救援任務時，因動力馬達高速運轉、鋰電池放電及密閉式防水船艙所造成的設備過熱問題，降低因高溫導致設備故障或影響救援效率的風險，提升智慧救生船運行的安全性與可靠性。系統以 Pt100 鉑電阻溫度感測器作為溫度量測元件，配合三線式惠斯同電橋將阻值變化轉換為差動電壓，再利用 AD623 儀表放大器進行訊號放大，使輸出符合微控制器 ADC 的輸入範圍。同時加入 RC 低通濾波、電源退耦、屏蔽線及軟體滑動平均濾波等抗干擾設計，以降低馬達驅動器所產生的電磁雜訊，提高量測穩定性與準確度；並透過微控制器控制 RGB LED 指示燈、蜂鳴器及無線傳輸模組，即時顯示與回傳救生船內部溫度資訊。預期本系統可提供穩定且精確的溫度監測功能，於溫度異常時即時發出警示或啟動保護措施，有效預防設備因過熱而損壞，提升智慧救生船的救援可靠性，並可作為未來智慧水域救援設備溫度監測與控制系統之參考。

Abstract This study aims to design a temperature control system applied to a smart rescue boat to address the overheating issues caused by high-speed operation of the propulsion motor, lithium battery discharge, and the enclosed waterproof cabin during rescue missions. The proposed system is designed to reduce the risk of equipment failure and decreased rescue efficiency caused by excessive temperature, thereby improving the safety and reliability of smart rescue boat operations. The system adopts a Pt100 platinum resistance temperature sensor as the temperature measurement element. A three-wire Wheatstone bridge circuit is used to convert the resistance variation into a differential voltage signal, which is then amplified by an AD623 instrumentation amplifier to match the input range of the microcontroller’s analog-to-digital converter (ADC). In addition, several anti-interference techniques, including RC low-pass filtering, power supply decoupling, shielded cables, and software-based moving average filtering, are implemented to reduce electromagnetic interference generated by the motor driver and improve measurement stability and accuracy. The microcontroller is further integrated with RGB LED indicators, a buzzer, and a wireless transmission module to provide real-time temperature display and remote monitoring of the internal temperature conditions of the rescue boat. The proposed system is expected to provide stable and accurate temperature monitoring capabilities, enabling immediate warnings or protective actions when abnormal temperature conditions occur. This approach can effectively prevent equipment damage caused by overheating, enhance the reliability of smart rescue boat operations, and serve as a reference for future temperature monitoring and control systems in intelligent water rescue equipment.