The present invention relates to a liquid level detection system for detecting the liquid level or capacity inside the infusion portion and notifying the medical staff at nursing station to pay attention. The present invention comprises a light emitting unit, an image capture unit, an image processing unit, and an alert unit. Thus, the present invention employs the hardware design for configuring the light emitting unit and the camera having the image capture unit on top or side of the drip bottle of various infusion portions to effectively use the image vision method to detect the variation of the light beam from the light emitting unit irradiating on the surface or side of the liquid inside the drip bottle and cooperates with the volume of the drip bottle to precisely calculate the level and capacity of the liquid inside the drip bottle and accurately supply the solution in quantity to be injected into patient's body according to the medical staff's presetting and capable of monitoring the usage condition of drip injection all the time.本發明有關於一種液面高度偵測系統，用以偵測輸液部內部之液體高度或容量，以通知護理站之醫護人員注意，本發明包括發光單元、影像擷取單元、影像處理單元與警示單元；藉此，本發明藉由設置於各式輸液部之點滴瓶上端部或側邊之發光單元與影像擷取單元之攝影機的硬體設計，有效使用影像視覺方式偵測發光單元之光束照射於點滴瓶內部之液體表面或側面的變化，以搭配點滴瓶之體積而準確計算點滴瓶內部之液體的高度與容量，確實達到依照醫護人員事先之設定而準確提供定量之藥液注射於患者體內，以及全時監控點滴注射之使用狀況等主要優勢。
