The invention discloses an embedded
fingerprint identification device with ultralow stand-by
power consumption. The embedded
fingerprint identification device comprises a
fingerprint sensor, a controller, a fingerprint lock module, a battery and a touch detection unit, the fingerprint lock module, the controller and the fingerprint sensor are sequentially connected, the outer side of the fingerprint lock module is provided with a
metal ring, the touch detection unit comprises an input terminal, a detection terminal and an output terminal, the
metal ring is connected to the detection terminal of the touch detection unit, the input terminal of the touch detection unit is connected to a positive
electrode of the battery, the output terminal of the touch detection unit is connected to a powerterminal of the fingerprint sensor, a power terminal of the controller and a power terminal of the fingerprint lock module, the touch detection unit is used for turning on the input terminal and the output terminal when that a finger touches the
metal ring is detected, and turning off the input terminal and the output terminal when that a finger touches the metal ring is not detected. According tothe invention, ultralow stand-by
power consumption can be achieved, the battery duration can be prolonged, the usage cost can be reduced, the user experience can be improved, and the embedded fingerprint
identification device is simple in structure and easy to implement.