Patent attributes
A group of locking medical storage are connected together using a daisy-chain connection based on i2C protocol. Each of the storage cabinets has one or more locking compartments. A control PC computer is connected to a first one of the cabinets, and that cabinet is connected to each of the other cabinets using i2C daisy chain cabling. The cabinets each have a control circuit module that controls locking and unlocking of doors and drawers, and sensors to detect open or closed status and locked or unlocked status. RFID readers detect which items or medications have been removed from the cabinet. Each cabinet is assigned a unique independent address for identification when it is joined to the daisy chain, which can include an unlimited number of cabinets.
