US Patent 12027001 Electronic access control

An embodiment of an electronic access control system includes an electronic key, an electronic lock, and an access control administration program. The electronic key can include program code for switching between a lock mode and a computer mode. In some embodiments, the lock mode and computer mode allow for simplified administration and operation of the access control system. Some embodiments of the electronic key include a rechargeable battery. In some embodiments, the access control system includes a hybrid power supply system having a rechargeable battery and a generator. In some embodiments, the electronic lock includes a piezoelectric latch. In some embodiments, the electronic key is configured to act as a storage device for a computer system. Some embodiments provide an electronic access control system with a streamlined user interface.