Patent attributes
A mailbox comprises a box body with a door having a lock, a mailbox unlocking code input device for inputting an unlocking code to unlock the mailbox, a communication module for communicating with a remote management terminal, a storage at the mailbox or the remote management terminal for storing one or more preset mailbox unlocking codes, and a processor at the mailbox or the remote management terminal for identifying whether the input mailbox unlocking code matches the one or more preset mailbox unlocking codes, and issuing a mailbox unlocking instruction if matching. The processor comprises a mailbox unlocking code management circuit used to invalidate the matched mailbox unlocking code after the mailbox is unlocked, generate a new mailbox unlocking code when no valid mailbox unlocking code is currently available, and store the new mailbox unlocking code in the storage. The mailbox can safely, conveniently and automatically receive and/or send mail.
