Passive fingerprint card punching device and method

The invention discloses a passive fingerprint clock-in device and method, and the device comprises a miniature generator module which is used for generating electric energy when a fingerprint collection module is pressed, and outputting the electric energy to an energy storage module; the energy storage module is used for supplying power to the single chip microcomputer control module and the fingerprint acquisition module when the stored electric quantity can support the work of the passive fingerprint clock-in device; the fingerprint acquisition module is used for performing fingerprint acquisition when the electric quantity stored by the energy storage module can support normal work of the fingerprint acquisition module to obtain first fingerprint information; and the single chip microcomputer control module is used for acquiring second fingerprint information associated with the received task list, comparing the first fingerprint information with the second fingerprint information, acquiring a comparison