The invention provides a patch type detection device for detecting muscle fatigue by muscle electrical signal.The device comprises a body, a vibration unit, a signal pre-processing circuit and a processing unit.The body is provided with a patch joint for joining an external patch.The signal preprocessing circuit obtains the myoelectric signal from the patch through the patch connector, processes the myoelectric signal to provide the myoelectric information, and the processing unit performs time-frequency conversion of the myoelectric information to generate the myoelectric frequency-domain information, and drives the vibration unit to vibrate when the frequency value of the myoelectric frequency-domain information is lower than the threshold value.Through the above operation of the device, when the muscle fatigue of the user occurs, the vibration of the device will give the user a warning, so that the user can reduce the amount of activity and avoid muscle injury.本創作係提供一種以肌電訊號偵測肌肉疲勞之貼片式偵測裝置。前述之裝置包含本體，以及設於本體之振動單元、訊號前處理電路、以及處理單元。本體上設有用於接合外部貼片之貼片接頭。訊號前處理電路經由貼片接頭以從貼片取得肌電訊號，對肌電訊號進行訊號處理以提供肌電資訊，而處理單元則對肌電資訊進行時頻轉換以產生肌電頻域資訊，並於肌電頻域資訊之中頻率值低於門檻值即驅動振動單元進行振動。本裝置透過上述之運作可對使用者之肌肉疲勞發生時，透過裝置振動，給予使用者警告，讓使用者降低活動量，避免肌肉受傷。
