Vending machines with field-programmable electronic locks

Abstract

A vending machine uses a field-programmable electronic lock that learns a key code from a corresponding electronic key. The electronic lock has a learning process activation device that is accessible when the door of the vending machine is in the open position. Using the learning process activation device, a service person activates the electronic lock to perform a key code learning operation, in which the electronic lock receives a key code transmitted from an electronic key and stores the key code in a non-volatile memory for future access control of the vending machine. Data encryption is employed in the communications between the key and the lock to ensure the security of the communications. A communication device installed in the vending machine for communicating with a home base computer allows the operation of the electronic lock to be remotely controlled for access control and auditing purposes.

Description

RELATED APPLICATIONS [0001] This application is a continuation of co-pending U.S. patent application Ser. No. 10 / 997,500, filed Nov. 24, 2004, which is a continuation of U.S. patent application Ser. No. 10 / 329,626, now U.S. Pat. No. 6,900,720, which claims priority of U.S. Provisional Application Ser. No. 60 / 344,221, filed Dec. 27, 2001. [0002] This application is also related to a co-filed U.S. patent application Serial No. ______, filed on Oct. 19, 2006, having attorney docket number MET-061210, and entitled VENDING MACHINES WITH FIELD-PROGRAMMABLE ELECTRONIC LOCKS.FIELD OF THE INVENTION [0003] This invention relates generally to vending machines, and more particularly to vending machines equipped with electronic locks. BACKGROUND OF THE INVENTION [0004] Vending machines are widely used in various locations as automated means for selling items such as soft drinks, snacks, etc. Traditional vending machines are equipped with mechanical locks, which can be unlocked with a correspondi...

AI Technical Summary

Benefits of technology

"The present invention provides a vending machine with a field-programmable electronic lock that can learn a key code from an electronic key or an electronic switch controlled by a mechanical lock. The electronic lock can store the key code in a non-volatile memory for future access control of the vending machine. The use of electronic keys and locks reduces theft and fraud, as the keys cannot be copied easily. The use of data encryption and infrared communication further prevents unauthorized access. The programmable electronic locks and keys provide advantages in terms of cost savings and access control. The electronic keys can also store audit data for analysis. The electronic lock can accept different types of keys and key codes with different levels of security. The electronic lock can work in conjunction with an electronic communication device in the vending machine to accomplish access control, auditing, and inventory and money settlement processes."

Problems solved by technology

In contrast, mechanical locks conventionally used on vending machines have lock cores that have to be manufactured for specific keys, and once manufactured the lock cores cannot be changed.

If the mechanical key is lost, the entire lock cores have to be replaced.

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