Patent ID: 7337963

Claim:
A portal device associated with a controlled space comprising: a computing device having a user database that includes information associated with inventory, each inventory being assigned an inventory value that is calculated based on a purchase price of the inventory, the user database further including the total value of inventory that the user has taken out of the controlled space, the total value of inventory being calculated based on the inventory value, the computing device being configured for receiving signals from a user, the computing device being configured to determine whether the user has exceeded a threshold value of inventory based on the total value of inventory that the user has taken out of the controlled space, the computing device being further configured to provide a notification signal to an administrator based on the total value of inventory that the user has taken out of the controlled space; and a locking door being coupled to the computing device, the computing device being configured to unlock the locking door based on the received signals from the user.