A hand mounted system is disclosed. The hand mounted system comprises a physiological signal sensor, a signal process circuit, a memory, an application processor, and an eyeglass frame. The physiological signal sensor monitors a physiological status to output a physiological signal. The signal process circuit determines whether the physiological status is abnormal. The signal process circuit controls the physiological signal sensor monitor the physiological status by a first monitor frequency when the physiological status is normal. The signal process circuit controls the physiological signal sensor monitor the physiological status by a second monitor frequency when the physiological status is abnormal. The second monitor frequency is higher than the first monitor frequency. The application processor receives an alarm signal and stores physiological data corresponding to the physiological signal to the memory. The eyeglass frame carries the physiological signal sensor, the signal process circuit, the memory and the application processor.一種頭戴式系統包括生理訊號感測器、訊號處理電路、記憶體、應用處理器及眼鏡架。生理訊號感測器監控生理狀態以輸出生理訊號。訊號處理電路根據生理訊號判斷生理狀態是否異常。當生理狀態無異常時,訊號處理電路控制生理訊號感測器以第一監控頻率監控生理狀態。當生理狀態異常時,訊號處理電路輸出警告訊號,並控制生理訊號感測器以第二監控頻率監控生理狀態。第二監控頻率大於第一監控頻率。應用處理器接收警告訊號,並儲存與生理訊號對應之生理資料至記憶體。眼鏡架承載生理訊號感測器、訊號處理電路、記憶體及應用處理器。1‧‧‧頭戴式系統11‧‧‧訊號處理電路12‧‧‧記憶體13‧‧‧應用處理器14A、14B‧‧‧紅外線發光二極體16A‧‧‧影像感測器17A‧‧‧紅外線感測器18A‧‧‧壓力感測器19A‧‧‧溫度感測器20A‧‧‧增益放大器21A‧‧‧類比數位轉換器AL‧‧‧警告訊號
