Method for utilizing a wireless connection to unlock an opening

摘要

A method of operating a lock from a portable remote device includes sending a radio frequency identification signal from the portable remote device to a controller for the lock, and receiving the radio frequency identification signal at the lock controller and identifying the remote device as an authorized user of the lock. The method then includes sending a sound frequency identification signal from the portable remote device to the lock controller, receiving the sound frequency identification signal at the lock controller and identifying the remote device as an authorized user of the lock. The method further includes authorizing operation of the lock in accordance with the radio or sound frequency identification signal from the portable remote device. A system for practicing the method includes a lock controller capable of receiving a radio frequency identification signal and a sound frequency identification signal from the portable remote device.

主权项

1. A method of operating a lock for a door from a portable remote device comprising:
providing a lock controller having an antenna for receiving radio frequency signals, a microphone for receiving sound frequency signals, a microprocessor for processing a radio frequency identification signal received by the antenna and a sound frequency identification signal received by the microphone to determine if the signals emanate from an authorized user of the lock, and a device driver controllable by the microprocessor for operating the lock; sending a radio frequency identification signal from the portable remote device to the lock controller; receiving the radio frequency identification signal at the lock controller and using the microprocessor to determine whether the remote device is an authorized user of the lock; if the remote device is identified as an authorized user of the lock, sending a radio frequency signal from the lock controller to the remote device specifying a frequency, duration, and/or amplitude of the sound frequency identification signal to be sent from the portable remote device; subsequently sending the specified sound frequency identification signal from the portable remote device to the lock controller; receiving the sound frequency identification signal at the lock controller and using the microprocessor to determine whether the remote device is an authorized user of the lock; if the remote device is identified as an authorized user of the lock from both the radio frequency identification signal and the sound frequency identification signal, sending an authorization signal from the processor to the device driver authorizing unlocking of the lock; and after unlocking the door, deactivating operation of the lock in accordance with the radio or sound frequency identification signal.