CONTACTLESS ELECTRONIC ACCESS CONTROL SYSTEM

摘要

An embodiment of an electronic access control system includes an electronic access apparatus, an electronic lock, and an access control administration program. The electronic access apparatus provides a wireless power signal and a wireless digital data signal to the electronic lock. The wireless power signal can be the only source of power used by the electronic lock to actuate an electronic lock mechanism. In some embodiments, the lock mechanism includes a piezoelectric latch.

主权项

1. An electronic lock capable of being locked and unlocked with a handheld electronic apparatus, the electronic lock comprising:
a lock mechanism electrically connected to a lock microcontroller, the lock mechanism configured to actuate between a locked state and an unlocked state within an actuation time period, an electromagnetic radiation receiver configured to:
receive an electromagnetic wireless digital data signal from the electronic apparatus, andreceive an electromagnetic wireless power signal from the electronic apparatus;wherein the receiver is configured to output electric power at a first voltage; the lock microcontroller configured to control operation of the lock mechanism based on the digital data signal from the electronic apparatus; at least one capacitor electrically connected to receive electric power from the electromagnetic radiation receiver; a power management module configured to:
receive electric power from the at least one capacitor at the first voltage and output the electric power at a second voltage, wherein the second voltage varies over the actuation time period; andsupply the electric power to the lock mechanism over the actuation time period to actuate the lock mechanism based on input received from the lock microcontroller; wherein the lock mechanism is capable of actuating between the locked state and the unlocked state using only the electric power supplied by the wireless power signal.